initial commit

This commit is contained in:
CaiHQ 2021-09-26 12:50:12 +08:00
parent 35eed0d99a
commit 75cc8d39bc
46 changed files with 6336 additions and 0 deletions

2
.gitignore vendored
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/build/
*/build/*
# Compiled class file
*.class

34
build.gradle Normal file
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plugins {
id 'java'
}
sourceSets {
main {
java {
srcDirs 'src/main/java'
}
resources {
srcDir 'src/main/resources'
}
}
test {
java {
srcDir 'src/test/java'
}
resources {
srcDir 'src/test/resources'
}
}
}
sourceCompatibility = 1.8
repositories {
mavenCentral()
}
dependencies {
implementation project(":common")
testImplementation 'junit:junit:4.13.2'
}

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package org.bdware.sc;
import org.bdware.sc.bean.ContractRequest;
import org.bdware.sc.conn.OnHashCallback;
public interface ChainOpener {
void writeContractResultToLocalAndLedger(
String result,
ContractClient client,
ContractRequest contractRequest,
OnHashCallback cb, long start, long l);
void writeToChain(
OnHashCallback cb,
String from,
String to,
String data,
String requestID,
String namedLedger);
void writeToChainWithContract(
OnHashCallback cb,
String from,
String to,
String data,
String requestID,
String contractID,
String namedLedger);
}

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package org.bdware.sc;
import com.google.gson.JsonObject;
import com.google.gson.JsonPrimitive;
import com.google.gson.reflect.TypeToken;
import org.apache.commons.lang3.StringUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.bdware.sc.ContractResult.Status;
import org.bdware.sc.bean.Contract;
import org.bdware.sc.bean.ContractExecType;
import org.bdware.sc.bean.FunctionDesp;
import org.bdware.sc.conn.ResultCallback;
import org.bdware.sc.conn.SocketGet;
import org.bdware.sc.db.CMTables;
import org.bdware.sc.db.KeyValueDBUtil;
import org.bdware.sc.encrypt.HardwareInfo;
import org.bdware.sc.encrypt.HardwareInfo.OSType;
import org.bdware.sc.event.REvent.REventSemantics;
import org.bdware.sc.node.AnnotationNode;
import org.bdware.sc.node.YjsType;
import org.bdware.sc.util.JsonUtil;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.PrintStream;
import java.lang.reflect.Field;
import java.util.*;
public class ContractClient {
private static final Logger LOGGER = LogManager.getLogger(ContractClient.class);
public static String cmi = "";
public ContractMeta contractMeta;
public boolean isDebug;
transient SocketGet get;
int port;
String pid;
transient ContractPrinter outputTracer;
transient ContractPrinter errorTracer;
Date timeTravel; // 当前所处时间
transient Process process;
long times = 0L;
long traffic = 0L;
long memory;
// boolean withInsnLimit; // 是否需要计算gas
ContractStatus contractStatus;
boolean isRunning;
// public boolean changeDumpPeriod(String period) {
// System.out.println("[ContractClient] changeDumpPeriod " + period);
// String res = get.syncGet("", "changeDumpPeriod",period);
// if(res.equals("success"))
// return true;
// return false;
// }
long lastUpdate = 0;
ContractClient(Contract c) {
contractMeta = new ContractMeta();
contractMeta.contract = c;
contractMeta.id = contractMeta.contract.getID();
// contractMeta will be rewrite later
outputTracer = new ContractPrinter();
errorTracer = new ContractPrinter();
contractStatus = ContractStatus.Ready;
memory = 0;
timeTravel = new Date();
isRunning = false;
}
// Once the reconnect is called, all cp in the same node will reconnect to
// current ContractManager
// We only consider the.
public ContractClient(int startPort) {
// LOGGER.info("ContractClient 构造器 : ");
contractMeta = new ContractMeta();
outputTracer = new ContractPrinter();
errorTracer = new ContractPrinter();
contractStatus = ContractStatus.Ready;
memory = 0;
timeTravel = new Date();
isRunning = false;
port = startPort;
// LOGGER.info("ContractClient----构造器----- 端口 " + startPort);
get = new SocketGet("127.0.0.1", startPort);
// LOGGER.info("ContractClient----构造器----- position---2");
String cpCMI = get.syncGet("", "isContractProcess", ""); // CMI
if (!cmi.equals(cpCMI)) {
LOGGER.warn("contract listened to port " + startPort + " cpCMI = " + cpCMI);
// LOGGER.info("ContractClient----构造器----- position---4");
return;
}
pid = get.syncGet("", "getPID", "");
// LOGGER.info("ContractClient----构造器----- position---5");
initProps();
// LOGGER.info("ContractClient----构造器----- position---6");
// LOGGER.info("ContractClient----构造器----- position---7");
}
static boolean isBundlePath(String scriptStr) {
return scriptStr.endsWith(".zip") || scriptStr.endsWith(".ypk");
}
public static String getPid(Process process) {
long pid = -1;
Field field;
try {
Class<?> clazz = Class.forName("java.lang.UNIXProcess");
field = clazz.getDeclaredField("pid");
field.setAccessible(true);
pid = (Integer) field.get(process);
} catch (Throwable e) {
e.printStackTrace();
}
return String.valueOf(pid);
}
public boolean isProcessAlive() {
return get != null && get.isAlive();
}
public boolean killProcess() {
process.destroy();
return true;
}
private void initProps() {
// LOGGER.info("initProps ---- position-----1");
contractMeta.name = get.syncGet("", "getContractName", "");
// LOGGER.info("initProps ---- position-----2");
String strEvent = get.syncGet("", "getDeclaredEvents", "");
LOGGER.debug("event: " + strEvent);
contractMeta.declaredEvents =
JsonUtil.fromJson(
strEvent, new TypeToken<Map<String, REventSemantics>>() {
}.getType());
// LOGGER.info("initProps ---- position-----3");
contractMeta.exportedFunctions =
JsonUtil.fromJson(
get.syncGet("", "getExportedFunctions", ""),
new TypeToken<List<FunctionDesp>>() {
}.getType());
contractMeta.dependentContracts = JsonUtil.fromJson(
get.syncGet("", "getDependentContracts", ""),
new TypeToken<Set<String>>() {
}.getType());
// LOGGER.info("initProps ---- position-----4");
contractMeta.logDetail = new HashMap<>();
for (FunctionDesp desp : contractMeta.exportedFunctions) {
StringBuilder str = new StringBuilder();
for (AnnotationNode anno : desp.annotations) {
if (anno.getType().equals("LogType")) {
for (String logType : anno.getArgs()) {
str.append(logType.replaceAll("\"", "")).append(";");
}
}
if (anno.getType().equals("LogLocation")) {
for (String logLoc : anno.getArgs()) {
if (logLoc.equals("\"dataware\"")
|| logLoc.equals("\"bdledger\"")
|| logLoc.equals("\"bdledger:\"")) {
str.append("bdcontract;");
} else if (logLoc.startsWith("\"bdledger:") && logLoc.length() > 11) {
String tmp = logLoc.substring(1);
String tmp2 = tmp.substring(0, tmp.length() - 1);
str.append(tmp2).append(";");
}
}
}
}
contractMeta.logDetail.put(desp.functionName, str.toString());
}
// LOGGER.info("initProps ---- position-----5");
try {
String anno = get.syncGet("", "getAnnotations", "");
contractMeta.annotations =
JsonUtil.fromJson(anno, new TypeToken<List<AnnotationNode>>() {
}.getType());
} catch (Exception e) {
// supoort contract process before version 0.70
contractMeta.annotations = new ArrayList<>();
}
// LOGGER.info("initProps ---- position-----6");
contractMeta.sigRequired = Boolean.parseBoolean(get.syncGet("", "isSigRequired", ""));
// LOGGER.info("initProps ---- position-----7");
contractMeta.thisPermission = get.syncGet("", "showPermission", "");
// LOGGER.info("initProps ---- position-----8");
isRunning = true;
contractMeta.isDebug = Boolean.parseBoolean(get.syncGet("", "getDebug", ""));
// LOGGER.info("initProps ---- position-----9");
get.syncGet("", "registerMangerPort", ContractManager.cPort.getCMPort() + "");
contractMeta.contract =
JsonUtil.fromJson(get.syncGet("", "getContract", ""), Contract.class);
contractMeta.id = contractMeta.contract.getID();
get.setOfflineExceptionHandler(
new SocketGet.OfflineHandler() {
@Override
public void onException(SocketGet socketGet, Exception e) {
if (e.getMessage().contains("Connection refused")) {
contractMeta.status = ContractStatusEnum.HANGED;
ContractManager.instance.statusRecorder.resumeContractProcess(
contractMeta.id);
}
}
});
loadTimesAndTraffic();
// LOGGER.info("initProps ---- position-----10");
// LOGGER.debug("======= registerPort:" + ret + "-->" + ContractManager.startPort);
}
public String startProcess(PrintStream ps) {
isRunning = false;
port = -1;
LOGGER.info("port=" + port);
String darg = "-Djava.library.path=";
String classpath;
File jniPath;
if (ContractManager.yjsPath == null) {
jniPath = new File("./jni/");
classpath = System.getProperty("java.class.path");
} else {
classpath = ContractManager.yjsPath;
jniPath = new File(classpath).getParentFile();
}
String osJni = ((HardwareInfo.type == OSType.linux) ? "/jni/linux" : "/jni/mac");
darg += jniPath.getAbsolutePath() + osJni;
if (!new File(classpath).exists()) {
ContractResult r =
new ContractResult(
Status.Exception, new JsonPrimitive("incorrect path: yjs.jar"));
return JsonUtil.toJson(r);
}
if (!new File(jniPath, "libs").exists()) {
ContractResult r =
new ContractResult(
Status.Exception,
new JsonPrimitive("incorrect path: yjs.jar, missing libs"));
return JsonUtil.toJson(r);
}
// ProcessBuilder builder =
// new ProcessBuilder(
// "java",
// "-Dfile.encoding=UTF-8",
// darg,
// "-cp",
// jniPath.getAbsolutePath() + "/libs/*:" + classpath,
// "org.bdware.sc.ContractProcess",
// "-port=" + cPort.getPort());
int startPort = ContractManager.cPort.getPortAndInc();
ProcessBuilder builder =
new ProcessBuilder(
"java",
"-Dfile.encoding=UTF-8",
darg,
"-jar",
classpath,
"-port=" + startPort,
"-cmi=" + cmi, // cmi 区分不同CM的cp
(isDebug ? "-debug" : ""));
File directory = new File("");
LOGGER.debug("[CMD] path: " + directory.getAbsolutePath());
LOGGER.debug(StringUtils.join(builder.command(), " "));
Map<String, String> map = builder.environment();
map.put("java.library.path", jniPath.getAbsolutePath() + osJni);
builder.directory(new File("./"));
LOGGER.debug("start process:");
try {
process = builder.start();
this.pid = getPid(process);
LOGGER.info("[CP PPID ] " + pid);
PrintStream printStream = new PrintStream(process.getOutputStream());
printStream.println("CP PID:" + pid);
printStream.close();
Scanner sc = new Scanner(process.getInputStream());
String status = null;
while (sc.hasNext()) {
status = sc.nextLine();
LOGGER.info("[CP] " + status);
if (status.contains("mainPort")) {
try {
// Set contractPort to max(mainPort, contractPort)
int portIndex = status.indexOf("mainPort");
int port =
Integer.parseInt(
status.substring(portIndex + 9, portIndex + 14)
.replaceAll("\\s+", ""));
if (port != startPort) {
ContractManager.cPort.reSetPort(port + 1);
}
} catch (Exception ignored) {
}
break;
}
}
if (status != null) {
status = status.replaceAll(".*mainPort ", "");
}
assert status != null;
port = Integer.parseInt(status.split(" ")[0]);
ContractManager.cPort.updateDb(port, true);
get = new SocketGet("127.0.0.1", port);
get.syncGet("", "setDBInfo", ContractManager.dbPath);
String tagA = (ps == System.out ? "[Contract_" + port + "_out] " : "");
String tagB = (ps == System.out ? "[Contract_" + port + "_err] " : "");
outputTracer.track(process, sc, tagA, ps);
errorTracer.track(process, new Scanner(process.getErrorStream()), tagB, ps);
get.syncGet("", "registerMangerPort", String.valueOf(ContractManager.cPort.getCMPort()));
if (isBundlePath(contractMeta.contract.getScriptStr())) {
status =
get.syncGet(
"", "setContractBundle", JsonUtil.toJson(contractMeta.contract));
} else {
status = get.syncGet("", "setContract", JsonUtil.toJson(contractMeta.contract));
}
LOGGER.debug("port:" + port + " status:" + status);
ContractResult r = JsonUtil.fromJson(status, ContractResult.class);
if (r.status == Status.Success) {
initProps();
get.syncGet("", "setPID", pid);
} else if (r.status == null) {
r.status = Status.Error;
r.result = new JsonPrimitive(status);
status = JsonUtil.toJson(r);
contractMeta.name = get.syncGet("", "getContractName", "");
}
return status;
} catch (Exception e) {
e.printStackTrace();
ByteArrayOutputStream bo = new ByteArrayOutputStream();
e.printStackTrace(new PrintStream(bo));
ContractResult r =
new ContractResult(Status.Exception, new JsonPrimitive(bo.toString()));
return JsonUtil.toJson(r);
}
}
public void updateMemory() {
try {
if (System.currentTimeMillis() - lastUpdate < 2000) {
return;
}
lastUpdate = System.currentTimeMillis();
get.asyncGet(
"",
".UsedMemory",
"",
new ResultCallback() {
@Override
public void onResult(String str) {
memory = Long.parseLong(str);
}
});
} catch (Exception e) {
// e.printStackTrace();
}
}
public Map<String, REventSemantics> getEvents() {
return contractMeta.declaredEvents;
}
public List<FunctionDesp> getExportedFunctions() {
return contractMeta.exportedFunctions;
}
public String getIdentifier() {
return get.syncGet("", "getIdentifier", " ");
}
public void setIdentifier(String alias) {
get.asyncGet("", "setIdentifier", alias, null);
}
public boolean isUnit() {
return contractMeta.contract.getType() != ContractExecType.Sole;
}
public String signResult(String result) {
return contractMeta.contract.signResult(result);
}
public String getPubkey() {
return contractMeta.contract.getPublicKey();
}
public String getContractID() {
return contractMeta.contract.getID();
}
public String getContractName() {
return contractMeta.name;
}
public String getContractDOI() {
return contractMeta.contract.getDOI();
}
public String getContractKey() {
return contractMeta.contract.getKey();
}
public void setContractKey(String key) {
contractMeta.contract.setKey(key);
}
public ContractExecType getContractType() {
return contractMeta.contract.getType();
}
public List<AnnotationNode> getAnnotations() {
return contractMeta.annotations;
}
public int getContractCopies() {
return contractMeta.contract.getNumOfCopies();
}
public String getLogType(String action) {
return contractMeta.logDetail.get(action);
}
public boolean isDebug() {
return contractMeta.isDebug;
}
public long getTimes() {
return times;
}
public long getTraffic() {
return traffic;
}
public YjsType getYjsType() {
return contractMeta.contract.getYjsType();
}
public String getPID() {
return pid;
}
public String getPort() {
return "" + port;
}
public String getMemory() {
return "" + memory;
}
public void loadTimesAndTraffic() {
String tempTime2 =
KeyValueDBUtil.instance.getValue(
CMTables.ContractInfo.toString(), contractMeta.name + "-Times");
String tempTraffic2 =
KeyValueDBUtil.instance.getValue(
CMTables.ContractInfo.toString(), contractMeta.name + "-Traffic");
if (tempTime2 != null && !tempTime2.equals("")) {
times = Long.parseLong(tempTime2);
}
if (tempTraffic2 != null && !tempTraffic2.equals("")) {
traffic = Long.parseLong(tempTraffic2);
}
}
public void saveTimesAndTraffic() {
KeyValueDBUtil.instance.setValue(
CMTables.ContractInfo.toString(), contractMeta.name + "-Times", times + "");
KeyValueDBUtil.instance.setValue(
CMTables.ContractInfo.toString(), contractMeta.name + "-Traffic", traffic + "");
}
public void setMask(JsonObject args) {
//get.asyncGet("",,,,);
get.asyncGet("", "setMask", args.toString(), null);
}
public void setProjectConfig(String args) {
get.asyncGet("", "setProjectConfig", args, null);
}
//public String
static class ReqScript {
String mode;
String code;
}
}

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package org.bdware.sc;
import org.bdware.sc.bean.Contract;
import org.bdware.sc.bean.FunctionDesp;
import org.bdware.sc.bean.IDSerializable;
import org.bdware.sc.event.REvent;
import org.bdware.sc.node.AnnotationNode;
import org.bdware.sc.node.YjsType;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
public class ContractMeta implements IDSerializable {
public Contract contract;
ContractStatusEnum status;
String name;
String id;
boolean isDebug;
Map<String, REvent.REventSemantics> declaredEvents;
List<FunctionDesp> exportedFunctions;
Map<String, String> logDetail;
List<AnnotationNode> annotations;
Set<String> dependentContracts;
transient Map<String, FunctionDesp> funCache;
boolean sigRequired;
String thisPermission; // 合约当前权限
/*
{
"name": "dx_substr",
"parameter":
{
"columnIndex":5,
"paras":["1","3"]
}
},
*/
// Map<Object,Object>MaskInfo;
public ContractMeta() {}
public ContractStatusEnum getStatus() {
return status;
}
public String getID() {
return id;
}
public List<AnnotationNode> getAnnotations() {
return annotations;
}
public List<FunctionDesp> getExportedFunctions() {
return exportedFunctions;
}
public Set<String> getDependentContracts() { return dependentContracts; }
public Map<String, REvent.REventSemantics> getEvents() {
return declaredEvents;
}
public YjsType getYjsType() {
return contract.getYjsType();
}
public String getPubkey() {
return contract.getPublicKey();
}
public String getThisPermission() {
return thisPermission;
}
public String getName() {
return name;
}
public boolean getIsDebug() {
return isDebug;
}
public FunctionDesp getExportedFunction(String action) {
if (funCache == null) funCache = new HashMap<>();
FunctionDesp desp = funCache.get(action);
if (desp != null) return desp;
desp = seekFunction(action);
if (desp != null) funCache.put(action, desp);
return desp;
}
// public setMask(){
;
// }
private FunctionDesp seekFunction(String action) {
for (FunctionDesp desp : exportedFunctions) {
if (desp != null && desp.functionName.equals(action)) return desp;
}
return null;
}
public void setContract(Contract c) {
contract = c;
id = c.getID();
status = ContractStatusEnum.HANGED;
isDebug = false;
}
public void setName(String name) {
this.name = name;
}
public void setStatus(ContractStatusEnum status) {
this.status = status;
}
}

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package org.bdware.sc;
public enum ContractStatusEnum {
INIT(0, "初始化"),
RUNNING(1, "内存运行中"),
HANGED(2, "硬盘运行中"),
KILLED(3, "已停止");
private Integer code;
private String desc;
ContractStatusEnum(Integer code, String desc) {
this.code = code;
this.desc = desc;
}
public static ContractStatusEnum getContractStatusEnumByCode(Integer code) {
if (code == null) {
return null;
}
for (ContractStatusEnum contractStatusEnum : ContractStatusEnum.values()) {
if (contractStatusEnum.getCode().intValue() == code) {
return contractStatusEnum;
}
}
return null;
}
public Integer getCode() {
return code;
}
public void setCode(Integer code) {
this.code = code;
}
public String getDesc() {
return desc;
}
public void setDesc(String desc) {
this.desc = desc;
}
}

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package org.bdware.sc;
import org.apache.commons.lang3.StringUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.bdware.sc.ContractPort.PortVisitor;
import org.bdware.sc.bean.Contract;
import org.bdware.sc.bean.ContractRequest;
import org.bdware.sc.db.CMTables;
import org.bdware.sc.db.StatusRecorder;
import org.bdware.sc.util.JsonUtil;
import org.bdware.sc.util.LRUList;
import java.io.File;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
/**
* @author xiaoche (2021/4/25 18:05)
*/
public class ContractStatusRecorder extends StatusRecorder<ContractMeta> {
private static final String PREFIX = "CONTRACT_INFO_META_";
private static final Logger LOGGER = LogManager.getLogger(ContractStatusRecorder.class);
public static AtomicInteger contractVersion = new AtomicInteger(0);
// 对外会有一个getContractClient的过程如果只是想用元信息的改成getContractClientMeta
// 如果是想调用的再使用getContractClient
// 合约执行的状态 key:合同id value:合同状态
// private static final String DB_NAME = CMTables.ContractInfo.toString();
static {
final Object flag = new Object();
// 调度一个task在delayms后开始调度每次调度完后最少等待periodms后才开始调
ContractManager.scheduledThreadPool.scheduleWithFixedDelay(
() -> {
boolean cleared = dealTimerContractProcess();
if (cleared) {
synchronized (flag) {
try {
flag.wait(14000L);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
},
0,
1,
TimeUnit.SECONDS);
}
// contract id to client, changes when some contract is started/stopped/resumed
private final Map<String, ContractClient> id2ContractClient;
public LRUList<ContractMeta> runningProcess;
public ContractStatusRecorder(String dir) {
super(dir, CMTables.ContractInfo.toString(), PREFIX);
id2ContractClient = new ConcurrentHashMap<>();
runningProcess = new LRUList<>();
LOGGER.info("Load Done!");
LOGGER.debug("Load Done: " + JsonUtil.toJson(getStatus()));
}
public static boolean dealTimerContractProcess() {
// if (id2ContractStatus == null) {
// String value = readDataFromDB(id2ContractStatusKey);
// id2ContractStatus = GSON.fromJson(value, Map.class);
// if (id2ContractStatus == null) {
// return true;
// }
// for (Map.Entry<String, ContractStatusEnum> contractStatusEnumEntry :
// id2ContractStatus.entrySet()) {
// //获取合同id
// String contractID = contractStatusEnumEntry.getKey();
// ContractStatusEnum contractStatusEnum =
// contractStatusEnumEntry.getValue();
// //没有状态信息就停止
// if (contractStatusEnum == null) {
// continue;
// }
// //拥有合同状态信息的如果是已经执行结束我们将合同挂起
// if
// (contractStatusEnum.getCode().equals(ContractStatusEnum.STORE.getCode())) {
// resumeContractProcess(contractID);
// } else if
// (contractStatusEnum.getCode().equals(ContractStatusEnum.DONE.getCode())) {
// hangUpContractProcess(contractID);
// }
// }
// }
return true;
}
private static String resumeStartContract(Contract contract) {
return ContractManager.instance.startContractAndRedirect(contract, null);
}
public boolean hasPID(int pid) {
// TODO 是不是还有别的这只是在内存里的哦
try {
for (ContractClient c : id2ContractClient.values()) {
if (Integer.parseInt(c.getPID()) == pid) return true;
}
} catch (Exception e) {
// e.printStackTrace();
}
return false;
}
public void reSyncStatusAtStart() {
List<String> toPrint = new ArrayList<>();
for (ContractMeta meta : getStatus().values()) {
toPrint.add(meta.status + " " + meta.id + " " + meta.name + " ");
}
LOGGER.debug(JsonUtil.toPrettyJson(toPrint));
for (String id : id2ContractClient.keySet()) {
ContractMeta meta = getStatus().get(id);
if (null == meta) {
LOGGER.error("unknown id in meta db");
}
if (meta != null && meta.status != ContractStatusEnum.RUNNING) {
meta.status = ContractStatusEnum.RUNNING;
updateValue(meta);
}
}
for (ContractMeta meta : getStatus().values()) {
if (meta.status == ContractStatusEnum.RUNNING) {
if (id2ContractClient.get(meta.getID()) == null) {
meta.status = ContractStatusEnum.HANGED;
updateValue(meta);
}
}
}
}
public void createContract(ContractClient client) {
ContractMeta meta = client.contractMeta;
contractVersion.getAndIncrement();
meta.status = ContractStatusEnum.RUNNING;
updateValue(meta);
id2ContractClient.put(meta.id, client);
runningProcess.add(meta);
}
public void hangLeastUsedContractProcess() {
ContractMeta meta = runningProcess.popOldest();
while (null != meta && ContractStatusEnum.RUNNING != meta.status) {
meta = runningProcess.popOldest();
}
if (null != meta) {
hangUpContractProcess(meta.id);
}
}
// TODO index name to contract
public ContractMeta getContractMeta(String idOrNameOrDOI) {
if (idOrNameOrDOI == null) return null;
ContractMeta meta = getStatus().get(idOrNameOrDOI);
if (meta != null) return meta;
for (ContractMeta cc : getStatus().values()) {
if (cc.status == ContractStatusEnum.RUNNING || cc.status == ContractStatusEnum.HANGED)
if (idOrNameOrDOI.equals(cc.name) || idOrNameOrDOI.equals(cc.contract.getDOI())) {
return cc;
}
}
for (ContractMeta cc : getStatus().values()) {
if (idOrNameOrDOI.equals(cc.name) || idOrNameOrDOI.equals(cc.contract.getDOI())) {
return cc;
}
}
return null;
}
public int stopAllContracts() {
List<String> ids = new ArrayList<>(getStatus().keySet());
for (String key : ids) {
killContract(key);
}
id2ContractClient.clear();
return ids.size();
}
public String killContract(String idOrName) {
ContractMeta meta = getContractMeta(idOrName);
if (meta != null) return killContract(meta);
return "no such contract " + idOrName;
}
public String killContract(ContractMeta meta) {
contractVersion.getAndIncrement();
meta.status = ContractStatusEnum.KILLED;
updateValue(meta);
ContractClient client = id2ContractClient.get(meta.id);
if (client != null) {
client.saveTimesAndTraffic();
String ff = client.get.syncGet("", "getMemorySet", "");
LOGGER.info("[killContract] memorySet : " + ff);
if (null != ff && ff.contains("kill")) {
// String[] strings = ff.split(";");
LOGGER.info("need dump when stop");
String contractName = client.getContractName();
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd.HH:mm:ss");
File f =
new File(
ContractManager.dir + "/memory/" + contractName,
df.format(new Date()));
client.get.syncGet("", "getMemoryDump", f.getAbsolutePath());
ContractManager.instance.addLocalContractLog("dumpContract", meta);
}
ContractManager.instance.invokeContractSuicide(client);
ContractManager.cPort.updateDb(client.port, false);
}
id2ContractClient.remove(meta.id);
runningProcess.remove(meta);
return "success";
}
public int stopAllContractsWithOwner(String owner) {
List<ContractMeta> toKill = new ArrayList<>();
for (ContractMeta meta : getStatus().values()) {
if (meta.contract.getOwner().equals(owner)) {
toKill.add(meta);
}
}
for (ContractMeta meta : toKill) {
killContract(meta);
}
return toKill.size();
}
public ContractClient getContractClient(String idOrName) {
if (StringUtils.isBlank(idOrName)) {
return null;
}
// TODO ensure load contract client
// TODO ensure load contract client
// TODO ensure load contract client
// TODO ensure load contract client
ContractMeta meta = getContractMeta(idOrName);
if (null == meta) {
LOGGER.error("meta of contract " + idOrName + " not found!");
return null;
}
return id2ContractClient.get(meta.id);
}
public void ensureRunning(ContractRequest contractRequest) {
// 获取合同id
String contractID = contractRequest.getContractID();
ContractMeta meta = getContractMeta(contractID);
contractID = meta.id;
// 判断目前合同的状态信息
if (meta.status == ContractStatusEnum.HANGED) {
resumeContractProcess(contractID);
}
// 似乎这样就可以了
// } else if (meta.status == ContractStatusEnum.RUNNING) {
// hangUpContractProcess(contractID);
// }
}
/**
* 解决思路 1CMActions#在executeContract 执行ContractStatusRecorder.
*/
public synchronized void hangUpContractProcess(String contractID) {
// dump stop 这里是正常流程代码
// ContractClient contractClient = getContractClientById(contractID);
// if (contractClient == null) {
// return;
// }
// //挂起
// Contract contract = contractClient.contract;
// ContractManager.instance.dumpContract(contract.getID(), null);
// setContractClient(contractID, contractClient);
// ContractManager.instance.hangUpStopContract(contract.getID());
// todo 临时想强制测试下效果
ContractMeta contractMeta = getContractMeta(contractID);
// 挂起
Contract contract = contractMeta.contract;
// System.out.println("hangUp"+contract.Mask);
if (contractMeta.status == ContractStatusEnum.RUNNING) {
contractMeta.status = ContractStatusEnum.HANGED;
updateValue(contractMeta);
ContractClient client = id2ContractClient.get(contractMeta.id);
if (null != client) {
client.saveTimesAndTraffic();
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd.HH_mm_ss"); // 设置日期格式
File f =
new File(
ContractManager.dir + "/memory/" + contractMeta.name,
df.format(new Date()));
File parent = f.getParentFile();
if (!parent.exists()) {
LOGGER.trace("make directory " + parent.getAbsolutePath() + ":" + parent.mkdirs());
}
ContractManager.instance.dumpContract(contract.getID(), f.getAbsolutePath());
ContractManager.instance.invokeContractSuicide(client);
id2ContractClient.remove(contractMeta.getID());
runningProcess.remove(contractMeta);
}
}
}
public synchronized void resumeContractProcess(String contractID) {
// 从参数获取合同名称
ContractMeta meta = getContractMeta(contractID);
// 启动合约
// 加载所需要的内存
// 该方法调用方法已经考虑了内存问题但是内存不足的时候重试或者等待或者将合约压到失败中稍后重试可以尝试设计消息重试机制
// 如果是内存中则唤起合同信息 todo 内存不足 关闭合约追赶补偿数据
if (meta.status == ContractStatusEnum.HANGED || meta.status == ContractStatusEnum.KILLED) {
ContractStatusEnum preStatus = meta.status;
// TODO Resume里复用的是start逻辑启动完了就成Running了哦可能不能这么来
String startContractResult = resumeStartContract(meta.contract);
ContractResult contractResult =
JsonUtil.fromJson(startContractResult, ContractResult.class);
if (contractResult.status == ContractResult.Status.Error) {
// 记录错误日志
ContractManager.instance.addLocalContractLog(
"resumeContract error",
meta.contract.getID(),
meta.name,
meta.contract.getOwner());
} else {
ContractManager.instance.addLocalContractLog(
"resumeContract success",
meta.contract.getID(),
meta.name,
meta.contract.getOwner());
// TODO 可能会重复load相同的镜像
// 如果是killed 只根据manifest去判断是否加载memory
// 可增加一个判断如果hanged朋manifest里是加载memory这里就不再加载了
ContractClient client = id2ContractClient.get(meta.getID());
if (preStatus == ContractStatusEnum.HANGED) {
ContractManager.instance.loadMemory(
client, ContractManager.instance.findNewestMemory(meta.name));
}
client.contractMeta.setStatus(ContractStatusEnum.RUNNING);
updateValue(client.contractMeta);
// 还要判断一发是不是已有permission的值如果有要setPermission一把
// meta.status = ContractStatusEnum.RUNNING;
// updateValue(meta);
}
}
}
public PortVisitor getVisitor() {
return new ReconnectVisitor();
}
class ReconnectVisitor implements PortVisitor {
private final Set<Integer> existed = new HashSet<>(); // 已经连上的合约端口
private final Set<String> contractIDs = new HashSet<>(); // 已经连上的合约id
public ReconnectVisitor() {
for (ContractClient c : id2ContractClient.values()) {
existed.add(c.port);
}
}
@Override
public boolean visit(int i) {
if (i == ContractManager.cPort.getCMPort()) {
return false;
}
if (existed.contains(i)) {
return true;
}
try {
ContractClient client = new ContractClient(i);
// LOGGER.info("[CM重连] position-----1");
if (client.isRunning) {
LOGGER.debug("CP listened to port " + i + " is running");
if (contractIDs.contains(client.getContractID())) {
LOGGER.info("find contract process with duplicate contractID, kill!");
ContractManager.instance.invokeContractSuicide(client);
return false;
}
contractIDs.add(client.getContractID());
if (client.contractMeta.name.equals("analysis_client")) {
LOGGER.info("kill analysis_client");
ContractManager.instance.invokeContractSuicide(client);
return false;
}
LOGGER.debug(
String.format(
"CP listened to port %d:\n\tID=%s\n\tName=%s\n\tType=%s\n"
+ "\tKey=%s\n\tPubKey=%s\n\tCopies=%d\n\t%s",
i,
client.getContractID(),
client.contractMeta.name,
client.getContractType(),
client.getContractKey(),
client.getPubkey(),
client.getContractCopies(),
client.contractMeta.contract.startInfo));
client.get.syncGet("", "setDir", ContractManager.dir);
// String str = client.getIdentifier();
client.get.syncGet("", "getDumpPeriod", "a");
client.get.syncGet("", "startAutoDump", "a");
createContract(client);
LOGGER.info(
String.format("reconnect to port %d: contract %s",
i, client.contractMeta.name));
return true;
}
} catch (Exception e) {
//just ignore
}
return false;
}
}
}

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package org.bdware.sc;
import java.util.HashMap;
import java.util.Map;
//Node
public class MasterElectTimeRecorder {
public static Long findMasterCrash; //发现master崩溃的时间
public static Long newMasterStart; //作为新的master newMasterStart被调用时间
public static Long setLocalMaster; //在本地标记自己为master
public static Long slaveConnectFinish; //被slave连接完成
public static Long masterStartRecover; //开始master恢复
public static Long masterRecoverFinish; //master恢复结束
}

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package org.bdware.sc;
import org.bdware.sc.bean.ContractRequest;
import org.bdware.sc.conn.ResultCallback;
public interface MasterStub {
// String executeGlobally(ContractRequest c, OnHashCallback cb);
void executeByMaster(ContractClient client, ResultCallback rcb, ContractRequest c);
void transferToOtherNode(String pubKey, String contractID);
void executeByOtherNodeAsync(String pubKey, ContractRequest c, ResultCallback cb);
boolean hasConnection(String pubKey);
}

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package org.bdware.sc;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.bdware.sc.db.CMTables;
import org.bdware.sc.db.KeyValueDBUtil;
import org.bdware.sc.db.StatusRecorder;
import org.bdware.sc.units.MultiContractMeta;
public class MultiContractRecorder extends StatusRecorder<MultiContractMeta> {
static final String dbName = CMTables.UnitContracts.toString();
static final String prefix = "Multi_C_Meta_";
private static final Logger LOGGER = LogManager.getLogger(MultiContractRecorder.class);
public MultiContractRecorder(String dir) {
super(dir, dbName, prefix);
for (MultiContractMeta meta : getStatus().values()) {
try {
meta.initQueue();
int lastExeSeq =
Integer.parseInt(
KeyValueDBUtil.instance.getValue(
CMTables.LastExeSeq.toString(), meta.getContractID()));
meta.setLastExeSeq(lastExeSeq);
} catch (Exception e) {
e.printStackTrace();
}
}
}
public MultiContractMeta getMultiContractMeta(String idOrNameOrDOI) {
if (idOrNameOrDOI == null) return null;
ContractMeta meta = ContractManager.instance.statusRecorder.getContractMeta(idOrNameOrDOI);
if (meta == null) return null;
return getStatus().get(meta.id);
}
public MultiContractMeta createIfNotExist(String contractID) {
MultiContractMeta ret = getMultiContractMeta(contractID);
if (null == ret) {
LOGGER.info("requests don't contain contract " + contractID);
ret = new MultiContractMeta(contractID);
updateValue(ret);
}
return ret;
}
}

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package org.bdware.sc;
import org.bdware.sc.bean.ProjectConfig;
import org.bdware.sc.db.CMTables;
import org.bdware.sc.db.StatusRecorder;
public class ProjectRecorder extends StatusRecorder<ProjectConfig> {
static final String dbName = CMTables.ProjectConfig.toString();
static final String prefix = "Project_Config_";
// private static final Logger LOGGER = LogManager.getLogger(ProjectRecorder.class);
public ProjectRecorder(String dir) {
super(dir, dbName, prefix);
}
public ProjectConfig getProjectConfig(String idOrNameOrDOI) {
if (null == idOrNameOrDOI) {
return null;
}
ContractMeta meta = ContractManager.instance.statusRecorder.getContractMeta(idOrNameOrDOI);
if (meta == null) {
return null;
}
if (null == meta.contract.sourcePath) {
if (meta.contract.getScriptStr().contains("public")) {
meta.contract.sourcePath = "public/" + meta.name;
} else {
meta.contract.sourcePath = meta.contract.getPublicKey() + "/" + meta.name;
}
}
ProjectConfig config = getStatus().get(meta.contract.sourcePath);
if (config == null) {
return createDefaultConfig(meta.contract.sourcePath);
} else {
return config;
}
}
public ProjectConfig createDefaultConfig(String sourcePath) {
ProjectConfig config = new ProjectConfig(sourcePath);
updateValue(config);
return config;
}
}

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package org.bdware.sc;
import java.util.HashMap;
import java.util.Map;
public class RecoverMechTimeRecorder {
//slave记录
public static Long startCMHttpServer; //启动
public static Long startFinish; //启动完成开始连接NC
public static Long connectNCFinish; //连接NC完成
public static Long startReconnectCP; //开始重连CP
public static Long reconnectCPFinish; //重连CP完成
public static Long startQueryMaster; //开始查看master是谁
public static Long queryMasterFinish; //查到master是谁开始连接master
public static Long connectMasterFinish; //连接master完成
public static Long startRecover; //开始恢复slave的askForRecover被调用
public static Long startCommonRecover; //slave开始从common恢复
public static Long startStableRecover; //slave开始从stable恢复
public static Long stableLoadFinish; //stable恢复模式load完成
public static Long stableRedoFinish; //stable恢复模式redo完成
public static Long startRedoTransFromMaster; //redo从master传来的trans
//master记录,key是slave的pubKey
public static Map<String,Long> masterStartRecoverNode = new HashMap<String, Long>(); //master的askForRecover被调用
public static Map<String,Long> startJudgeRecoverMethod = new HashMap<String,Long>(); //开始判断某个节点的恢复方式
public static Map<String,Long> judgeRecoverMethodFinish = new HashMap<String,Long>(); //判断某节点恢复方式完成
public static Map<String,Long> startRecoverFromCommon = new HashMap<String,Long>(); //slave从common恢复master的nodeRestartFromCommonMode方法开始时间
public static Map<String,Long> writeCEIStart = new HashMap<String, Long>(); //开始dumpContract等cei信息
public static Map<String,Long> finishWriteCEI = new HashMap<String, Long>(); //将cei写入文件完成
public static Map<String,Long> startRecoverFromStable = new HashMap<String,Long>(); //slave从common恢复master的restartFromStableMode方法开始时间
public static Map<String,Long> recoverFinish = new HashMap<String,Long>();
}

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package org.bdware.sc.event;
import com.google.gson.JsonObject;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.bdware.sc.ContractClient;
import org.bdware.sc.ContractManager;
import org.bdware.sc.conn.ResultCallback;
import org.bdware.sc.db.CMTables;
import org.bdware.sc.event.clients.ContractConsumer;
import org.bdware.sc.event.clients.IEventConsumer;
import org.bdware.sc.event.clients.NodeConsumer;
import org.bdware.sc.util.HashUtil;
import org.bdware.sc.util.JsonUtil;
import java.util.*;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.TimeUnit;
import static org.bdware.sc.event.REvent.REventSemantics.NEED_RETRY;
import static org.bdware.sc.event.REvent.REventSemantics.ONLY_ONCE;
import static org.bdware.sc.event.REvent.REventType.*;
/**
* @author Kaidong Wu
*/
public class EventBroker {
private static final Logger LOGGER = LogManager.getLogger(EventBroker.class);
private static final long EXPIRED_TIME = 90 * 1000L;
private final EventCenter center;
private final EventRecorder recorder;
private final Map<String, Set<String>> topic2cIds;
private final Map<String, IEventConsumer> id2Consumers;
private final Map<String, ThreadFlag> threadFlags;
private final Map<String, Long> tempTopics;
// private final Map<String, Stack<REvent>> client2Events;
public EventBroker() {
center = new EventCenter();
recorder = new EventRecorder(CMTables.EventRegistry.toString(), this);
threadFlags = new ConcurrentHashMap<>();
// recover registries from database
EventRecorder.CheckPoint cp = recorder.recoverRegistryFromDb();
topic2cIds = cp.topic2cIds;
id2Consumers = cp.id2Consumers;
tempTopics = recorder.recoverTempTopicsFromDb();
// regularly check temporary topics and clean them
ContractManager.scheduledThreadPool.scheduleWithFixedDelay(
() -> {
long current = System.currentTimeMillis();
int oldSize = tempTopics.size();
tempTopics.keySet().forEach(topic -> {
if (tempTopics.get(topic) + EXPIRED_TIME > current) {
String reqID =
ContractManager.instance.nodeCenterConn.getNodeKeyPair().getPublicKeyStr() +
"_" + System.currentTimeMillis();
REvent cleanEvent =
new REvent(
topic,
UNSUBSCRIBE,
null,
reqID);
cleanEvent.doSignature(ContractManager.instance.nodeCenterConn.getNodeKeyPair());
handle(cleanEvent);
tempTopics.remove(topic);
}
});
if (oldSize != tempTopics.size()) {
recorder.saveTempTopics(tempTopics);
}
},
0L,
EXPIRED_TIME,
TimeUnit.MILLISECONDS);
// regularly create check point in database
ContractManager.scheduledThreadPool.scheduleAtFixedRate(
() -> recorder.createCheckPoint(topic2cIds, id2Consumers),
EXPIRED_TIME,
EXPIRED_TIME,
TimeUnit.MILLISECONDS);
NodeConsumer.setCenter(center);
// client2Events = new HashMap<>();
LOGGER.info("Event Broker starts!");
}
/**
* handle the event after checking the signature
*
* @param event event request
*/
public void handle(REvent event) {
if (!event.verifySignature()) {
LOGGER.debug(JsonUtil.toJson(event));
return;
}
String topic = event.getTopic();
switch (event.getType()) {
case SUBSCRIBE:
if (null != topic && !topic.isEmpty()) {
doSubscribe(event);
// save & try to sub in center
recorder.appendEvent(event);
center.subInCenter(event.getTopic(), event.getSemantics());
}
break;
case UNSUBSCRIBE:
doUnsubscribe(event);
recorder.appendEvent(event);
break;
case PUBLISH:
case PREPUB:
case PRESUB:
LOGGER.info(String.format("Receive %s event from topic %s", event.getSemantics(), topic));
LOGGER.debug(String.format("Receive %s event %s: %s",
event.getSemantics(), topic, event.getContent()));
if (event.isForward()) {
// send event to the event center
event.setForward(center.deliverEvent(topic, event));
}
// if the event is from or in event center, save and do publishing
if (!event.isForward()) {
recorder.appendEvent(event);
doPublish(event);
}
default:
break;
}
}
private void doSubscribe(REvent e) {
subInReg(e.getTopic(), parseConsumer(e.getContent()), this.topic2cIds, this.id2Consumers);
// for events with semantics ONLY_ONCE, mark the topic is a temporary topic
if (ONLY_ONCE.equals(e.getSemantics()) && !tempTopics.containsKey(e.getTopic())) {
tempTopics.put(e.getTopic(), System.currentTimeMillis());
recorder.saveTempTopics(tempTopics);
}
}
/**
* do subscribing in registry
*
* @param topic event topic
* @param consumer the consumer
* @param topic2cIds topic registry of broker or a check point in event recorder
* @param id2Consumers consumer registry of broker or a check point in event recorder
* @return if the subscribing succeeds
*/
public boolean subInReg(
String topic,
IEventConsumer consumer,
Map<String, Set<String>> topic2cIds,
Map<String, IEventConsumer> id2Consumers) {
if (null == consumer) {
return false;
}
String cId = consumer.getId();
if (!id2Consumers.containsKey(cId)) {
id2Consumers.put(cId, consumer);
}
if (!topic2cIds.containsKey(topic)) {
topic2cIds.put(topic, new HashSet<>());
}
topic2cIds.get(topic).add(cId);
if (consumer instanceof ContractConsumer) {
LOGGER.info("contract " + ((ContractConsumer) consumer).getContract() + " subscribes topic " + topic);
} else {
LOGGER.info("node " + consumer.getId() + " subscribes topic " + topic);
}
return true;
}
private void doUnsubscribe(REvent e) {
unsubInReg(e.getTopic(), parseConsumer(e.getContent()), this.topic2cIds, this.id2Consumers);
}
/**
* do subscribing in registry<br/>
* topic and consumer must not be null at the same time
* <ul>
* <li>if consumer is null and topic is not, it means the topic is a temporary topic, remove it</li>
* <li>if topic is null and consumer is not,
* it means a consumer or a contract wants to unsubscribe all topics,
* remove all related consumers in topic registry and consumer registry</li>
* <li>if two of them is not null, do unsubscribing in two registries</li>
* </ul>
*
* @param topic event topic
* @param consumer the consumer, just id is required
* @param topic2cIds topic registry of broker or a check point in event recorder
* @param id2Consumers consumer registry of broker or a check point in event recorder
* @return if the subscribing succeeds
*/
public boolean unsubInReg(
String topic,
IEventConsumer consumer,
Map<String, Set<String>> topic2cIds,
Map<String, IEventConsumer> id2Consumers) {
if (null == topic && null == consumer) {
return false;
}
if (null == consumer) {
topic2cIds.remove(topic);
LOGGER.info("clean temporary topic " + topic);
return true;
}
String cId = consumer.getId();
List<String> toRmIds;
String contract; // just used for log
if (id2Consumers.containsKey(cId)) {
// if cId belongs to a contract consumer, use the cId as a singleton list
toRmIds = Collections.singletonList(cId);
contract = ((ContractConsumer) id2Consumers.get(cId)).getContract();
} else {
// if cId belongs to a contract, find all related consumers
toRmIds = new ArrayList<>();
id2Consumers.forEach((k, c) -> {
if (c instanceof ContractConsumer && ((ContractConsumer) c).getContract().equals(cId)) {
toRmIds.add(k);
}
});
contract = cId;
}
if (toRmIds.isEmpty()) {
return true;
}
if (null == topic || topic.isEmpty()) {
topic2cIds.values().forEach(cIds -> toRmIds.forEach(cIds::remove));
toRmIds.forEach(id2Consumers::remove);
LOGGER.info("contract " + contract + " unsubscribes all topics");
} else if (topic2cIds.containsKey(topic)) {
Set<String> topic2Id = topic2cIds.get(topic);
toRmIds.forEach(topic2Id::remove);
LOGGER.info("contract " + contract + " unsubscribes topic " + topic);
}
return true;
}
/**
* parse consumer information from content str<br/>
* if caller wants to select all consumers of a contract, the content str is also parsed into a node consumer
*
* @param content json string, {"subscriber": "[subscriber]", "handler?": "[handler]"}
* @return a node consumer or contract consumer, or null if exception is thrown
*/
public IEventConsumer parseConsumer(String content) {
if (null == content || content.isEmpty()) {
return null;
}
try {
JsonObject json = JsonUtil.parseString(content);
String subscriber = json.get("subscriber").getAsString();
String handler = json.has("handler") ? json.get("handler").getAsString() : null;
if (null == subscriber || subscriber.isEmpty()) {
return null;
}
IEventConsumer consumer;
if (null != handler && !handler.isEmpty()) {
consumer = new ContractConsumer(subscriber, handler);
} else {
consumer = new NodeConsumer(subscriber);
}
return consumer;
} catch (Exception ignored) {
return null;
}
}
// handle publishing; the process varies with the semantic of the event
private void doPublish(REvent event) {
String topic = event.getTopic();
// publish simple event message to contract consumer
String cEventStr = JsonUtil.toJson(new Event(topic, event.getContent(), event.getSemantics()));
// publish full event message to node consumer
String nEventStr = JsonUtil.toJson(event);
if (!topic2cIds.containsKey(topic)) {
return;
}
Set<String> topicConsumers = topic2cIds.get(topic);
switch (event.getSemantics()) {
case AT_LEAST_ONCE:
case NEED_RETRY:
// send events to all
topicConsumers.forEach(cId ->
deliverEvent(event, cEventStr, nEventStr, cId, topic, true));
break;
case AT_MOST_ONCE:
// send event to a random consumer
// AT_MOST_ONCE, so broker don't need to do anything when delivering fails
deliverEvent(
event,
cEventStr,
nEventStr,
topicConsumers.toArray()[(int) (Math.random() * topicConsumers.size())].toString(),
topic,
true);
break;
case ONLY_ONCE:
switch (event.getType()) {
case PRESUB:
// receive PRESUB events and deliver the first one to the thread
String[] contentArr = event.getContent().split("\\|");
if (contentArr.length == 3) {
ThreadFlag topicFlag;
synchronized (topicFlag = threadFlags.get(contentArr[1])) {
if (topicFlag.get().isEmpty()) {
topicFlag.set(event.getContent());
topicFlag.notify();
}
}
}
break;
case PUBLISH:
// the ONLY_ONCE event won't be delivered to the non-center
String contentHash = HashUtil.sha3(event.getContent());
if (!threadFlags.containsKey(contentHash)) {
final ThreadFlag flag = new ThreadFlag();
threadFlags.put(contentHash, flag);
// send PREPUB events to all consumers
// TODO if there are no consumers to receive the ONLY_ONCE events?
ContractManager.threadPool.execute(() -> {
REvent prePubMsg = new REvent(event.getTopic(),
PREPUB,
contentHash,
event.getRequestID());
prePubMsg.doSignature(ContractManager.instance.nodeCenterConn.getNodeKeyPair());
topicConsumers.forEach(cId ->
deliverEvent(prePubMsg,
JsonUtil.toJson(
new Event(event.getTopic(),
contentHash,
prePubMsg.getSemantics())),
JsonUtil.toJson(prePubMsg),
cId,
topic,
false));
// wait for responses from contracts (PRESUB events)
while (true) {
try {
synchronized (flag) {
flag.wait(30 * 1000L);
}
if (!flag.get().isEmpty()) {
REvent finalMsg = new REvent(flag.get(),
PUBLISH,
event.getContent(),
HashUtil.sha3(
contentHash + System.currentTimeMillis()));
// if the delivering fails, retry publishing
finalMsg.setSemantics(NEED_RETRY);
finalMsg.doSignature(
ContractManager.instance.nodeCenterConn.getNodeKeyPair());
handle(finalMsg);
break;
}
} catch (InterruptedException e) {
LOGGER.warn("ONLY_ONE event delivering is interrupted: " + e.getMessage());
// e.printStackTrace();
}
}
});
}
default:
break;
}
default:
break;
}
}
/**
* publish the event to the consumer
*
* @param event event message
* @param cEventStr simple event message to the contract consumer, only the topic and the content
* @param nEventStr event message to the node
* @param cId consumer id
* @param topic topic of the event
* @param isPub if the event is published or pre-published
*/
private void deliverEvent(
REvent event,
String cEventStr,
String nEventStr,
String cId,
String topic,
boolean isPub) {
if (id2Consumers.containsKey(cId)) {
IEventConsumer consumer = id2Consumers.get(cId);
if (consumer instanceof ContractConsumer) {
// contract consumer
ContractManager.threadPool.execute(() -> {
ResultCallback cb = new ResultCallback() {
@Override
public void onResult(String str) {
// if the delivering fails, unsubscribe the consumer
if (null != str) {
ContractConsumer c = (ContractConsumer) consumer;
ContractClient client = ContractManager.instance.getClient(c.getContract());
String reqID =
ContractManager.instance.nodeCenterConn.getNodeKeyPair().getPublicKeyStr() +
"_" + System.currentTimeMillis();
REvent unsubEvent =
new REvent(
topic,
UNSUBSCRIBE,
"{\"subscriber\":\"" + cId + "\"}",
reqID);
unsubEvent.doSignature(client.getPubkey(), client.getContractKey());
handle(unsubEvent);
// if the event is an ONLY_ONCE event, retry publishing
if (NEED_RETRY.equals(event.getSemantics())) {
REvent newMsg =
new REvent(
topic.split("\\|")[0],
PUBLISH,
event.getContent(),
event.getRequestID());
newMsg.setSemantics(ONLY_ONCE);
newMsg.setHash(event.getHash());
newMsg.setTxHash(event.getTxHash());
newMsg.doSignature(ContractManager.instance.nodeCenterConn.getNodeKeyPair());
handle(newMsg);
}
}
}
};
if (isPub) {
consumer.publishEvent(cEventStr, cb, event.getRequestID(), event.getHash());
} else {
consumer.competeSub(cEventStr, cb, event.getRequestID(), event.getHash());
}
});
} else {
// node consumer
ContractManager.threadPool.execute(() -> {
if (isPub) {
consumer.publishEvent(nEventStr, null);
} else {
consumer.competeSub(nEventStr, null);
}
});
}
} else {
topic2cIds.get(topic).remove(cId);
}
}
/**
* return the number of topics, for node center statistics
*
* @return the number of topics
*/
public int countEvents() {
return topic2cIds.size() - tempTopics.size();
}
/**
* thread flag, used in ONLY_ONCE event publishing
*/
static class ThreadFlag {
private String flag = "";
public String get() {
return flag;
}
public void set(String flag) {
this.flag = flag;
}
}
}

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package org.bdware.sc.event;
import org.bdware.sc.NodeCenterConn;
import org.bdware.sc.NodeCenterConn.NodeKey;
import org.bdware.sc.util.HashUtil;
import org.bdware.sc.util.JsonUtil;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.List;
import static org.bdware.sc.ContractManager.instance;
/**
* @author Kaidong Wu
*/
public class EventCenter {
// private static final Logger LOGGER = LogManager.getLogger(EventCenter.class);
/**
* get the nearest node to the topic in the hash function range
*
* @param topic the topic
* @return id of the node
*/
public String getCenterByTopic(String topic) {
String[] centers = getCentersByTopic(topic, 1);
if (null == centers) {
return null;
}
return centers[0];
}
/**
* get k nearest nodes to the topic in the hash function range
*
* @param topic the topic
* @param k the number of required node ids
* @return ids of k nearest nodes
*/
public String[] getCentersByTopic(String topic, int k) {
NodeCenterConn nodeCenterConn = instance.nodeCenterConn;
if (null == nodeCenterConn) {
return null;
}
NodeKey[] nodes = nodeCenterConn.listNodes();
if (nodes.length == 0) {
return null;
}
if (nodes.length == 1) {
return new String[]{nodeCenterConn.getNodeId(nodes[0].id)};
}
// get hash with enough length
String hash = HashUtil.sha3ToFixedLen(topic, nodes[0].id.length());
BigInteger biH = new BigInteger(hash, 16);
// binary search, to find the nearest node with hash
int l = 0, r = nodes.length - 1, m = 0,
comL = biH.compareTo(nodes[l].biId), comR = nodes[r].biId.compareTo(biH),
comM;
String selected;
do {
if (comL < 1) {
selected = nodes[l].id;
break;
}
if (comR < 1) {
selected = nodes[r].id;
break;
}
if (l + 1 == r) {
if (biH.subtract(nodes[l].biId).compareTo(nodes[r].biId.subtract(biH)) < 1) {
selected = nodes[l].id;
} else {
selected = nodes[r].id;
}
break;
}
m = (l + r) >> 1;
comM = biH.compareTo(nodes[m].biId);
if (comM < 1) {
r = m;
comR = -comM;
} else {
l = m;
comL = comM;
}
} while (true);
List<String> ret = new ArrayList<>();
ret.add(nodeCenterConn.getNodeId(selected));
if (k > 1) {
l = m - 1;
r = m + 1;
while (ret.size() < k && (l >= 0 || r < nodes.length)) {
if (l < 0) {
ret.add(nodeCenterConn.getNodeId(nodes[r++].id));
} else if (r >= nodes.length) {
ret.add(nodeCenterConn.getNodeId(nodes[l--].id));
} else {
if (biH.subtract(nodes[l].biId).compareTo(nodes[r].biId.subtract(biH)) < 1) {
ret.add(nodeCenterConn.getNodeId(nodes[l--].id));
} else {
ret.add(nodeCenterConn.getNodeId(nodes[r++].id));
}
}
}
}
return ret.toArray(new String[0]);
}
/**
* subscribe a topic in center
*
* @param topic event topic
* @param semantics event semantics, used to mark PRESUB events
*/
public void subInCenter(String topic, REvent.REventSemantics semantics) {
if (null == instance.nodeCenterConn) {
return;
}
REvent msg = new REvent(
topic,
REvent.REventType.SUBSCRIBE,
String.format("{\"subscriber\":\"%s\"}",
instance.nodeCenterConn.getNodeId(null)),
"");
msg.setSemantics(semantics);
msg.doSignature(instance.nodeCenterConn.getNodeKeyPair());
String nodeId = getCenterByTopic(topic);
instance.nodeCenterConn.deliverEvent(JsonUtil.toJson(msg), nodeId);
}
/**
* deliver an event to center
*
* @param topic event topic
* @param event the event
* @return if this node is the center, return false; otherwise, return true
*/
public boolean deliverEvent(String topic, REvent event) {
if (null == instance.nodeCenterConn) {
return false;
}
String nodeId = getCenterByTopic(topic);
return instance.nodeCenterConn.deliverEvent(JsonUtil.toJson(event), nodeId);
}
/**
* publish an event to another node; used by NodeConsumer
*
* @param eStr event string
* @param target id of the target node
*/
public void publishEvent(String eStr, String target) {
if (null != instance.nodeCenterConn) {
instance.nodeCenterConn.deliverEvent(eStr, target);
}
}
}

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package org.bdware.sc.event;
import com.google.gson.JsonObject;
import com.google.gson.reflect.TypeToken;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.bdware.sc.db.KeyValueRocksDBUtil;
import org.bdware.sc.event.REvent.REventSemantics;
import org.bdware.sc.event.REvent.REventType;
import org.bdware.sc.event.clients.ContractConsumer;
import org.bdware.sc.event.clients.IEventConsumer;
import org.bdware.sc.event.clients.NodeConsumer;
import org.bdware.sc.util.HashUtil;
import org.bdware.sc.util.JsonUtil;
import java.lang.reflect.Type;
import java.util.Map;
import java.util.Set;
import java.util.Stack;
import java.util.concurrent.ConcurrentHashMap;
import static org.bdware.sc.event.REvent.REventType.SUBSCRIBE;
import static org.bdware.sc.event.REvent.REventType.UNSUBSCRIBE;
/**
* @author Kaidong Wu
*/
public class EventRecorder {
private static final Logger LOGGER = LogManager.getLogger(EventRecorder.class);
private static final String LATEST_EVENT_KEY = "LATEST_EVENT", TEMP_TOPIC_KEYS = "TEMP_TOPICS";
private final String dbName;
private final EventBroker broker;
private final RecordPointer latestEvent = new RecordPointer();
public EventRecorder(String dbName, EventBroker broker) {
this.dbName = dbName;
this.broker = broker;
}
public void appendEvent(REvent e) {
ETransaction transaction = new ETransaction(e);
synchronized (latestEvent) {
transaction.prev = latestEvent.get();
String tranJson = "et" + JsonUtil.toJson(transaction);
String key = HashUtil.sha3(tranJson);
latestEvent.set(key);
latestEvent.setCp(false);
KeyValueRocksDBUtil.instance.setValue(dbName, LATEST_EVENT_KEY, latestEvent.get());
KeyValueRocksDBUtil.instance.setValue(dbName, key, tranJson);
}
}
public void createCheckPoint(Map<String, Set<String>> topic2cIds,
Map<String, IEventConsumer> id2Consumers) {
CheckPoint cp = new CheckPoint(topic2cIds, id2Consumers);
synchronized (latestEvent) {
if (!latestEvent.isCp()) {
cp.prev = latestEvent.get();
String cpJson = "cp" + JsonUtil.toJson(cp);
String key = HashUtil.sha3(cpJson);
latestEvent.set(key);
latestEvent.setCp(true);
KeyValueRocksDBUtil.instance.setValue(dbName, LATEST_EVENT_KEY, latestEvent.get());
KeyValueRocksDBUtil.instance.setValue(dbName, key, cpJson);
}
}
}
/**
* recover registry from database
*
* @return a check point, including topic registry and client registry
*/
public CheckPoint recoverRegistryFromDb() {
Stack<Object> stack = new Stack<>();
// recover the latest event pointer from database
String key = KeyValueRocksDBUtil.instance.getValue(dbName, LATEST_EVENT_KEY);
latestEvent.set(key);
CheckPoint cp = new CheckPoint();
Type topic2cIdsType = TypeToken.getParameterized(ConcurrentHashMap.class, String.class,
TypeToken.getParameterized(Set.class, String.class,
String.class).getType()).getType();
// retrieving transactions from database
while (null != key && !key.isEmpty()) {
String json = KeyValueRocksDBUtil.instance.getValue(dbName, key);
if (null == json || json.isEmpty()) {
LOGGER.warn("record damaged! " + key);
break;
}
try {
if (json.startsWith("cp")) {
// create check point by the transaction and stop retrieving
JsonObject data = JsonUtil.parseString(json.substring(2));
cp.topic2cIds = JsonUtil.fromJson(data.get("topic2cIds").toString(), topic2cIdsType);
JsonObject id2Consumers = data.getAsJsonObject("id2Consumers");
for (String k : id2Consumers.keySet()) {
JsonObject consumer = id2Consumers.getAsJsonObject(k);
if (consumer.has("handler")) {
cp.id2Consumers.put(k,
new ContractConsumer(consumer.get("contract").getAsString(),
consumer.get("handler").getAsString()));
} else {
cp.id2Consumers.put(k, new NodeConsumer(k));
}
}
cp.prev = data.get("prev").getAsString();
break;
} else if (json.startsWith("et")) {
// push transactions into the stack
ETransaction tran = JsonUtil.fromJson(json.substring(2), ETransaction.class);
key = tran.prev;
// just sub or unsub event need to be processed
if (tran.type == SUBSCRIBE || tran.type == UNSUBSCRIBE) {
stack.push(tran);
}
} else {
LOGGER.warn("record damaged! " + key);
break;
}
} catch (Exception ignored) {
LOGGER.warn("record damaged! " + key);
LOGGER.debug("record damaged! " + key + ": " + json);
break;
}
}
if (stack.isEmpty()) {
// if empty, return the check point
latestEvent.setCp(true);
} else {
// on the base of old check point, process following sub or unsub events to recover registry
while (!stack.empty()) {
Object record = stack.pop();
if (record instanceof CheckPoint) {
cp = (CheckPoint) record;
} else {
ETransaction tran = (ETransaction) record;
IEventConsumer consumer = broker.parseConsumer(tran.content);
switch (tran.type) {
case SUBSCRIBE:
if (!broker.subInReg(tran.topic, consumer, cp.topic2cIds, cp.id2Consumers)) {
LOGGER.warn("record damaged! " + key);
LOGGER.debug("record damaged! " + key + ": " + JsonUtil.toJson(tran));
}
break;
case UNSUBSCRIBE:
if (!broker.unsubInReg(tran.topic, consumer, cp.topic2cIds, cp.id2Consumers)) {
LOGGER.warn("record damaged! " + key);
LOGGER.debug("record damaged! " + key + ": " + JsonUtil.toJson(tran));
}
default:
break;
}
}
}
}
LOGGER.info("recover registry from database done!");
return cp;
}
public void saveTempTopics(Map<String, Long> tempTopics) {
KeyValueRocksDBUtil.instance.setValue(dbName, TEMP_TOPIC_KEYS, JsonUtil.toJson(tempTopics));
}
public Map<String, Long> recoverTempTopicsFromDb() {
String json = KeyValueRocksDBUtil.instance.getValue(dbName, TEMP_TOPIC_KEYS);
Map<String, Long> ret = new ConcurrentHashMap<>();
try {
JsonObject jo = JsonUtil.parseString(json);
for (String key : jo.keySet()) {
ret.put(key, jo.get(key).getAsLong());
}
} catch (Exception ignored) {
}
return ret;
}
static class ETransaction {
REventType type;
REventSemantics semantics;
String topic;
String content;
String requestID;
// public key of sender
String sender;
String signature;
String prev;
public ETransaction(REvent e) {
type = e.getType();
semantics = e.getSemantics();
topic = e.getTopic();
content = e.getContent();
requestID = e.getRequestID();
sender = e.getPublicKey();
signature = e.getSignature();
}
}
static class CheckPoint {
Map<String, Set<String>> topic2cIds;
Map<String, IEventConsumer> id2Consumers;
String prev;
public CheckPoint() {
topic2cIds = new ConcurrentHashMap<>();
id2Consumers = new ConcurrentHashMap<>();
}
public CheckPoint(Map<String, Set<String>> topic2cIds,
Map<String, IEventConsumer> id2Consumers) {
this.topic2cIds = topic2cIds;
this.id2Consumers = id2Consumers;
}
}
static class RecordPointer {
private String str;
private boolean isCp = false;
public String get() {
return str;
}
public void set(String str) {
this.str = str;
}
public boolean isCp() {
return isCp;
}
public void setCp(boolean cp) {
isCp = cp;
}
}
}

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package org.bdware.sc.event.clients;
import org.bdware.sc.conn.ResultCallback;
/**
* @author Kaidong Wu
*/
public class ClientConsumer implements IEventConsumer {
@Override
public String getId() {
return null;
}
@Override
public void publishEvent(String msg, ResultCallback rc, String... options) {
// TODO
}
@Override
public void competeSub(String msg, ResultCallback rc, String... options) {
// TODO
}
}

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package org.bdware.sc.event.clients;
import com.google.gson.annotations.Expose;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.bdware.sc.ContractClient;
import org.bdware.sc.ContractManager;
import org.bdware.sc.ContractResult;
import org.bdware.sc.bean.ContractRequest;
import org.bdware.sc.conn.ResultCallback;
import org.bdware.sc.util.HashUtil;
import org.bdware.sc.util.JsonUtil;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
/**
* @author Kaidong Wu
*/
public class ContractConsumer implements IEventConsumer {
private static final Logger LOGGER = LogManager.getLogger(ContractConsumer.class);
private static final long PERIOD = 2500L;
private static final int TIMEOUT_COUNT = 5;
private static final Map<String, ScheduledFuture<?>> scheduledFutures =
new ConcurrentHashMap<>();
private final String contract;
private final String handler;
@Expose(serialize = false, deserialize = false)
private final Object flag = new Object();
public ContractConsumer(String contract, String handler) {
this.contract = contract;
this.handler = handler;
}
public String getContract() {
return contract;
}
@Override
public String getId() {
return HashUtil.sha3(contract + handler);
}
@Override
public void publishEvent(String msg, ResultCallback rc, String... options) {
executeContract(msg, this.handler, rc, options);
}
@Override
public void competeSub(String msg, ResultCallback rc, String... options) {
executeContract(msg, "_preSub", rc, options);
}
private void executeContract(String msg, String handler, ResultCallback rc, String... options) {
ContractRequest cr = new ContractRequest();
if (options.length > 1 && null != options[1]) {
cr.setRequester(options[1]);
} else {
cr.setRequester("event");
}
cr.setContractID(contract);
cr.setAction(handler);
cr.setArg(msg);
cr.setRequestID(options[0]);
ContractClient cc = ContractManager.instance.getClient(contract);
if (null == cc) {
rc.onResult("");
return;
}
AtomicInteger callCount = new AtomicInteger(0);
ScheduledFuture<?> future = ContractManager.scheduledThreadPool.scheduleAtFixedRate(
() -> ContractManager.instance.executeContractInternal(cr, new ResultCallback() {
@Override
public void onResult(String str) {
boolean ret = true;
try {
ContractResult result = JsonUtil.fromJson(str, ContractResult.class);
if (result.status == ContractResult.Status.Success) {
rc.onResult(null);
} else if (callCount.get() == TIMEOUT_COUNT ||
(result.status == ContractResult.Status.Exception &&
result.result.toString().contains("not exported"))) {
rc.onResult("");
} else {
ret = false;
}
} catch (Exception e) {
LOGGER.warn("receiving event error! " + contract + "." + handler + ": " + e.getMessage());
rc.onResult("");
}
callCount.incrementAndGet();
if (ret) {
synchronized (flag) {
try {
// wait for setting scheduledFutures
flag.wait(500L);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
scheduledFutures.get(getId()).cancel(true);
}
}
}, (reqID, hashStr) -> {
}),
500L,
PERIOD,
TimeUnit.MILLISECONDS);
scheduledFutures.put(getId(), future);
synchronized (flag) {
flag.notify();
}
}
}

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package org.bdware.sc.event.clients;
import org.bdware.sc.conn.ResultCallback;
public interface IEventConsumer {
String getId();
void publishEvent(String msg, ResultCallback rc, String... options);
void competeSub(String msg, ResultCallback rc, String... options);
}

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package org.bdware.sc.event.clients;
import org.bdware.sc.conn.ResultCallback;
import org.bdware.sc.event.EventCenter;
/**
* @author Kaidong Wu
*/
public class NodeConsumer implements IEventConsumer {
private static EventCenter center;
private final String nodeId;
public NodeConsumer(String nodeId) {
this.nodeId = nodeId;
}
public static void setCenter(EventCenter center) {
NodeConsumer.center = center;
}
@Override
public String getId() {
return this.nodeId;
}
@Override
public void publishEvent(String msg, ResultCallback rc, String... options) {
center.publishEvent(msg, nodeId);
if (null != rc) {
rc.onResult("");
}
}
@Override
public void competeSub(String msg, ResultCallback rc, String... options) {
publishEvent(msg, rc, options);
}
}

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package org.bdware.sc.handler;
import org.bdware.sc.ContractManager;
import org.bdware.sc.bean.Contract;
import org.bdware.sc.bean.ContractRequest;
import org.bdware.sc.conn.Description;
import org.bdware.sc.conn.MsgHandler;
import org.bdware.sc.conn.ResultCallback;
import org.bdware.sc.event.REvent;
import org.bdware.sc.get.GetMessage;
import org.bdware.sc.util.JsonUtil;
public class ManagerHandler extends MsgHandler {
private final ContractManager cm;
public ManagerHandler(ContractManager contractManager) {
cm = contractManager;
}
@Description(value = "start Contract, {\"type\":\"Data\",\"id\":\"123bbaa\"}", isAsync = true)
public void startContract(GetMessage msg, ResultCallback cb) {
Contract c = JsonUtil.fromJson(msg.arg, Contract.class);
cb.onResult(cm.startContract(c));
}
@Description("request Contract, TODO")
public void requestContract(GetMessage msg, ResultCallback cb) {
ContractRequest c = JsonUtil.fromJson(msg.arg, ContractRequest.class);
cb.onResult(cm.requestContract(c));
}
@Description("get how many times a contract has been executed")
public void getTimesOfExecution(GetMessage msg, ResultCallback cb) {
cb.onResult(cm.getTimesOfExecution(msg.arg));
}
@Description(
value = "execute Contract, {\"contractID\":\"112233\",\"arg\":\"\"}",
isAsync = true)
public void executeContract(GetMessage msg, ResultCallback cb) {
ContractRequest c;
try {
c = JsonUtil.fromJson(msg.arg, ContractRequest.class);
cm.executeContractInternal(c, cb, null);
} catch (Exception ignored) {
}
}
@Description("stop Contract, {\"id\":\"112233\"}")
public void stopContract(GetMessage msg, ResultCallback cb) {
ContractRequest c = JsonUtil.fromJson(msg.arg, ContractRequest.class);
cb.onResult(cm.stopContract(c.getContractID()));
}
@Description("list Contracts")
public void listContracts(GetMessage msg, ResultCallback cb) {
cb.onResult(cm.listContracts(null));
}
@Description("stop all Contracts")
public void stopAllContracts(GetMessage msg, ResultCallback cb) {
int count = cm.stopAllContracts();
cb.onResult(count + " contracts stoped!");
}
@Description("exit ContractManager!")
public void exit(GetMessage msg, ResultCallback cb) {
ContractManager.threadPool.execute(() -> {
System.out.println("ManagerHandler: exit in 3 seconds!");
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.exit(0);
});
cb.onResult("success");
}
@Description("query distributed execution port by contractID/name")
public void queryDEPort(GetMessage msg, ResultCallback cb) {
cb.onResult(cm.queryDEPort(msg.arg));
}
@Description("add distributed execution member, sample: {contractID:id/name, arg:ipAndPort}")
public void addDEMember(GetMessage msg, ResultCallback cb) {
ContractRequest cr = JsonUtil.fromJson(msg.arg, ContractRequest.class);
cb.onResult(cm.addDEMember(cr.getContractID(), cr.getArg()));
}
/**
* @author Kaidong Wu
*/
@Description("Deliver event message")
public void deliverEMessage(GetMessage msg, ResultCallback cb) {
REvent eMsg = JsonUtil.fromJson(msg.arg, REvent.class);
cb.onResult(cm.deliverEMessage(eMsg));
}
}

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package org.bdware.sc.sequencing;
import org.bdware.sc.bean.ContractRequest;
public interface Committer {
void onCommit(ContractRequest data);
}

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package org.bdware.sc.sequencing;
import org.bdware.sc.ContractManager;
import org.bdware.sc.bean.ContractRequest;
import org.bdware.sc.conn.Node;
import org.bdware.sc.units.TrustfulExecutorConnection;
import org.bdware.sc.util.JsonUtil;
import org.zz.gmhelper.SM2KeyPair;
import java.util.*;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
public class PBFTAlgorithm implements SequencingAlgorithm {
static byte[] GETPUBKEY = "GETPUBKEY".getBytes();
Committer committer;
Map<Node, PBFTMember> members;
AtomicLong allocatedID = new AtomicLong(0);
Map<Long, PCInfo> info;
List<PBFTMessage> commitedMsg;
AtomicLong commitedOrder = new AtomicLong(0);
Map<Integer, Pair<Node, PBFTMessage>> original;
boolean isMaster;
private TrustfulExecutorConnection connection;
public PBFTAlgorithm(boolean isMaster) {
commitedMsg = new ArrayList<>();
info = new HashMap<>();
members = new HashMap<>();
original = new HashMap<>();
this.isMaster = isMaster;
}
public void setCommitter(Committer c) {
committer = c;
}
public void setConnection(TrustfulExecutorConnection c) {
connection = c;
}
private void onPBFTMessage(final Node sender, final PBFTMessage pbftMessage) {
// pbftMessage.type != Request
// verify signed message
// System.out.println(getPort() + " recv:" + pbftMessage.type + " len:" +
// pbftMessage.content.length);
PCInfo temp;
PBFTMessage prepareMsg;
System.out.println("[PBFTAlgorithm] recv: " + pbftMessage.getDisplayStr());
switch (pbftMessage.type) {
case AddMember:
PBFTMember member = PBFTMember.parse(pbftMessage.content);
if (member != null)
members.put(sender, member);
// case DeleteMember:
break;
case Request:
// all nodes save full content, clientIP, clientPort !!!!
int hash = java.util.Arrays.hashCode(pbftMessage.content);
original.put(hash, new Pair<Node, PBFTMessage>(sender, pbftMessage));
if (isMaster) {
prepareMsg = new PBFTMessage();
prepareMsg.order = allocatedID.incrementAndGet();
prepareMsg.type = PBFTType.PrePrepare;
prepareMsg.content = (java.util.Arrays.hashCode(pbftMessage.content) + "").getBytes();
temp = new PCInfo();
temp.request = pbftMessage;
if (info.get(prepareMsg.order) != null) {
System.out.println("==========================Error!!!");
}
info.put(prepareMsg.order, temp);
temp.isPrePrepareReceived = true;
broadcast(prepareMsg);
} else {
// System.out.println(getPort() + " Request:" + pbftMessage.getDisplayStr());
matchPrePrepareFromOriginReqeust(hash, pbftMessage);
}
reply(sender, "success");
break;
case PrePrepare:
// assert !isMaster
// Get Pubkey of Master
// verify the content matches full content !!!! and client info
if (info.get(pbftMessage.order) == null) {
info.put(pbftMessage.order, new PCInfo());
}
matchOriginalReqeustFromPrePrepare(pbftMessage);
updatePrepare(info.get(pbftMessage.order));
// TODO 触发prepare
break;
case Prepare:
temp = info.get(pbftMessage.order);
// System.out.println(getPort() + ": receive Prepare from:" + packet.getPort());
if (temp == null) {
PCInfo pcInfo = new PCInfo();
pcInfo.buff.add(pbftMessage);
info.put(pbftMessage.order, pcInfo);
requetPrePrepareFromMaster(pbftMessage.order);
} else if (temp.updatePrepare(pbftMessage, this)) {
// check the sender (is master) and order is in range !!!!
PBFTMessage commitMsg = new PBFTMessage();
commitMsg.type = PBFTType.Commit;
commitMsg.order = pbftMessage.order;
commitMsg.content = new byte[1];
updateCommit(commitMsg);
broadcast(commitMsg);
}
break;
case Commit:
temp = info.get(pbftMessage.order);
if (temp == null) {
PCInfo pcInfo = new PCInfo();
pcInfo.buff.add(pbftMessage);
info.put(pbftMessage.order, pcInfo);
requetPrePrepareFromMaster(pbftMessage.order);
break;
}
if (temp.updateCommit(pbftMessage, this)) {
// check all messages' order !!!!
// write order to content !!!!
PBFTMessage commitMsg = new PBFTMessage();
commitMsg.type = PBFTType.Reply;
// execute in order
onCommit(pbftMessage);// once complete automatically send to client !!!!
// broadCast(commitMsg);
}
break;
case Reply:// client receive this and check f+1 same result
if (isMaster) {
System.out.println(pbftMessage.order + " " + pbftMessage.sendID);
}
break;
case ReSend:
// TODO
if (isMaster) {
prepareMsg = new PBFTMessage();
prepareMsg.order = pbftMessage.order;
prepareMsg.type = PBFTType.PrePrepare;
temp = info.get(prepareMsg.order);
prepareMsg.content = (java.util.Arrays.hashCode(temp.request.content) + "").getBytes();
broadcast(pbftMessage);
}
default:
}
// printDebugInfo();
}
private void updateCommit(PBFTMessage commitMsg) {
PCInfo temp = info.get(commitMsg.order);
if (temp.updateCommit(commitMsg, this)) {
// check all messages' order !!!!
// write order to content !!!!
PBFTMessage replyMsg = new PBFTMessage();
commitMsg.type = PBFTType.Reply;
// execute in order
onCommit(commitMsg);// once complete automatically send to client !!!!
// broadCast(commitMsg);
}
}
private void updatePrepare(PCInfo pcInfo) {
for (PBFTMessage msg : pcInfo.buff) {
if (msg.type == PBFTType.Prepare) {
if (pcInfo.updatePrepare(msg, this)) {
PBFTMessage commitMsg = new PBFTMessage();
commitMsg.type = PBFTType.Commit;
commitMsg.order = msg.order;
commitMsg.content = new byte[1];
updateCommit(commitMsg);
broadcast(commitMsg);
}
}
}
}
private void requetPrePrepareFromMaster(long order) {
PBFTMessage message = new PBFTMessage();
message.type = PBFTType.ReSend;
message.order = order;
message.content = new byte[1];
sendToMaster(message);
}
private void matchPrePrepareFromOriginReqeust(int hash, PBFTMessage pbftMessage) {
for (PCInfo pcInfo : info.values()) {
for (PBFTMessage msg : pcInfo.buff) {
if (msg.type == PBFTType.PrePrepare && Integer.parseInt(new String(msg.content)) == hash) {
handlePrePrepare(msg, original.get(hash).second);
return;
}
}
}
}
private void reply(Node receiver, String data) {
}
private void retryLater(int delay, final Node sender, final PBFTMessage pbftMessage) {
ContractManager.scheduledThreadPool.schedule(
() -> onPBFTMessage(sender, pbftMessage),
delay,
TimeUnit.MILLISECONDS);
}
private void handlePrePrepare(PBFTMessage pbftMessage, PBFTMessage req) {
PBFTMessage prepareMsg = new PBFTMessage();
prepareMsg.type = PBFTType.Prepare;
prepareMsg.order = pbftMessage.order;
prepareMsg.content = pbftMessage.content;
PCInfo temp;
if (info.get(prepareMsg.order) == null) {
temp = new PCInfo();
info.put(prepareMsg.order, temp);
} else
temp = info.get(prepareMsg.order);
temp.request = req;
temp.isPrePrepareReceived = true;
temp.updatePrepare(prepareMsg, this);
// System.out.println(getPort() + ":sendPrepare " + pbftMessage.order);
broadcast(prepareMsg);
}
private void matchOriginalReqeustFromPrePrepare(PBFTMessage pbftMessage) {
int receivedHash = Integer.parseInt(new String(pbftMessage.content));
if (original.get(receivedHash) != null) {
handlePrePrepare(pbftMessage, original.get(receivedHash).second);
} else {
info.get(pbftMessage.order).buff.add(pbftMessage);
}
}
private synchronized void onCommit(PBFTMessage pbftMessage) {
PBFTMessage original = getOriginalMessage(pbftMessage.order);
// execute(pbftMessage);
if (pbftMessage.order == commitedOrder.get() + 1) {
execute(original);
} else {
commitedMsg.add(original);
}
}
private synchronized void execute(PBFTMessage pbftMessage) {
commitedOrder.incrementAndGet();
PBFTMessage original = getOriginalMessage(pbftMessage.order);
ContractRequest msg = ContractRequest.parse(original.content);
committer.onCommit(msg);
System.out.println(": execute, " + JsonUtil.toJson(msg));
info.remove(pbftMessage.order);
// ContractProcess.instance.onEvent(msg);
commitedMsg.sort((o1, o2) -> (int) (o1.order - o2.order));
Set<PBFTMessage> executedMsgs = new HashSet<>();
for (PBFTMessage message : commitedMsg) {
if (commitedOrder.get() == message.order) {
commitedOrder.incrementAndGet();
msg = ContractRequest.parse(getOriginalMessage(message.order).content);
committer.onCommit(msg);
executedMsgs.add(message);
// info.remove(pbftMessage.order);
} else
break;
}
commitedMsg.removeAll(executedMsgs);
}
private PBFTMessage getOriginalMessage(long order) {
return info.get(order).request;
}
private void broadcast(PBFTMessage pbftMessage) {
for (Node node : members.keySet()) {
System.out.println("[PBFTAlgorithm] send: " + pbftMessage.getDisplayStr());
connection.sendMessage(node, pbftMessage.getBytes());
}
}
private void sendToMaster(PBFTMessage pbftMessage) {
for (Node node : members.keySet()) {
PBFTMember member = members.get(node);
if (member.isMaster) {
connection.sendMessage(node, pbftMessage.getBytes());
return;
}
}
}
public int getMemberSize() {
return members.size();
}
@Override
public void onMessage(Node node, byte[] msg) {
PBFTMessage pbftMessage = PBFTMessage.parse(msg);
onPBFTMessage(node, pbftMessage);
}
static class NodeInfo {
SM2KeyPair privKey;
int hash;
boolean isMaster;
public NodeInfo(SM2KeyPair key) {
privKey = key;
hash = Arrays.hashCode(privKey.getPublicKey().getQ().getEncoded(false));
isMaster = false;
}
public int getNodeID() {
return hash;
}
public boolean isMaster() {
return isMaster;
}
}
static class PCInfo {
public PBFTMessage request;
Set<Integer> prepare;
Set<Integer> commit;
boolean isPrePrepareReceived;
boolean isSendCommit;
boolean isSendReply;
List<PBFTMessage> buff;
PCInfo() {
prepare = new HashSet<>();
commit = new HashSet<>();
buff = new ArrayList<>();
isSendCommit = false;
isSendReply = false;
isPrePrepareReceived = false;
}
public synchronized boolean updatePrepare(PBFTMessage message, PBFTAlgorithm center) {
if (isSendCommit)
return false;
prepare.add(message.sendID);
if (!isPrePrepareReceived) {
return false;
}
// System.out.println("---: updatePrepare, size:" + prepare.size() + " -->"
// + (center.members.size() / 3 * 2 + 1) + " --senderID:" + message.sendID);
if (prepare.size() > center.members.size() / 3 * 2) {
isSendCommit = true;
return true;
}
return false;
}
public synchronized boolean updateCommit(PBFTMessage message, PBFTAlgorithm center) {
if (isSendReply)
return false;
commit.add(message.sendID);
if (!isSendCommit)
return false;
if (commit.size() > center.members.size() / 3 * 2) {
prepare = null;
commit = null;
isSendReply = true;
return true;
}
return false;
}
public String getDisplayStr() {
return "pSize:" + (prepare == null ? "null" : prepare.size()) + " cSize:"
+ (commit == null ? "null" : commit.size()) + " isSendCommit:" + isSendCommit + " isSendReply:"
+ isSendReply + " buffSize:" + buff.size();
}
}
}

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package org.bdware.sc.sequencing;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
public class PBFTMember implements Serializable {
private static final long serialVersionUID = -3058672609865345062L;
public boolean isMaster;
public boolean isMaster() {
return isMaster;
}
public static PBFTMember parse(byte[] content) {
try {
ByteArrayInputStream input = new ByteArrayInputStream(content);
ObjectInputStream objectInputStream = new ObjectInputStream(input);
PBFTMember ret = (PBFTMember) objectInputStream.readObject();
return ret;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public byte[] toByteArray() {
ObjectOutputStream out;
try {
ByteArrayOutputStream bo = new ByteArrayOutputStream();
out = new ObjectOutputStream(bo);
out.writeObject(this);
return bo.toByteArray();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}

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package org.bdware.sc.sequencing;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import org.bdware.sc.conn.ByteUtil;
public class PBFTMessage {
PBFTType type;
int sendID;
long order;
byte[] content;
String stamp;// time-stamp or other string, given by client, to identify the content
String signature;
public int getBytesHash() {
ByteArrayOutputStream bo = new ByteArrayOutputStream();
bo.write(type.toInt());
ByteUtil.writeLong(bo, sendID);
ByteUtil.writeLong(bo, order);
try {
bo.write(content);
} catch (IOException e) {
e.printStackTrace();
}
byte[] ret = bo.toByteArray();
int hashCode = ret.hashCode();
return hashCode;
}
public byte[] getBytes() {
ByteArrayOutputStream bo = new ByteArrayOutputStream();
try {
bo.write(type.toInt());
ByteUtil.writeInt(bo, sendID);
ByteUtil.writeLong(bo, order);
if (signature != null) {
byte[] signature = this.signature.getBytes();
ByteUtil.writeInt(bo, signature.length);
bo.write(signature);
} else
ByteUtil.writeInt(bo, 0);
bo.write(content);
} catch (IOException e) {
e.printStackTrace();
}
return bo.toByteArray();
}
public static PBFTMessage parse(byte[] b) {
PBFTMessage msg = new PBFTMessage();
ByteArrayInputStream bi = new ByteArrayInputStream(b);
msg.type = PBFTType.fromByte(bi.read());
msg.sendID = ByteUtil.readInt(bi);
msg.order = ByteUtil.readLong(bi);
int sigLen = ByteUtil.readInt(bi);
if (sigLen > 0)
msg.signature = new String(ByteUtil.readBytes(bi, sigLen));
else
msg.signature = null;
msg.content = ByteUtil.readBytes(bi, b.length - 1 - 4 - 8 - 4 - sigLen);
return msg;
}
private static String IDA = "PBFTMsg";
// public void sign(SM2KeyPair pair) {
// sendID = Arrays.hashCode(pair.getPublicKey().getEncoded(false));
// signature = sm02.sign(content, IDA, pair).toString();
// }
//
// public boolean verify(PBFTMember member) {
// return sm02.verify(content, Signature.loadFromString(signature), IDA,
// SM2KeyPair.publicKeyStr2ECPoint(member.pubKey));
// }
public void setType(PBFTType type) {
this.type = type;
}
public void setContent(byte[] content) {
this.content = content;
}
public String getDisplayStr() {
StringBuilder sb = new StringBuilder();
sb.append(sendID);
sb.append("_");
sb.append(order);
sb.append("_TYPE_").append(type);
sb.append(" --> sig:");
sb.append(signature);
sb.append(" content:");
sb.append(new String(content));
return sb.toString();
}
}

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package org.bdware.sc.sequencing;
public enum PBFTType {
Request(0), PrePrepare(1), Prepare(2), Commit(3), Reply(4), Unknown(5), ReSend(6), AddMember(7);
private int type;
PBFTType(int i) {
type = i;
}
public static PBFTType fromByte(int i) {
switch (i) {
case 0:
return Request;
case 1:
return PrePrepare;
case 2:
return Prepare;
case 3:
return Commit;
case 4:
return Reply;
case 6:
return ReSend;
case 7:
return AddMember;
default:
return Unknown;
}
}
public int toInt() {
return type;
}
}

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package org.bdware.sc.sequencing;
public class Pair<T1, T2> {
public T1 first;
public T2 second;
public Pair(T1 t1, T2 t2) {
first = t1;
second = t2;
}
}

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package org.bdware.sc.sequencing;
import org.bdware.sc.conn.Node;
import org.bdware.sc.units.TrustfulExecutorConnection;
public interface SequencingAlgorithm {
void onMessage(Node node, byte[] msg);
void setCommitter(Committer c);
void setConnection(TrustfulExecutorConnection c);
}

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package org.bdware.sc.sequencing;
import org.bdware.sc.bean.ContractRequest;
import org.bdware.sc.conn.Node;
import org.bdware.sc.units.TrustfulExecutorConnection;
public class ViewAlgorithm implements SequencingAlgorithm {
private Committer committer;
private TrustfulExecutorConnection connection;
public ViewAlgorithm(boolean isMaster) {
}
public void setCommitter(Committer c) {
committer = c;
}
public void setConnection(TrustfulExecutorConnection c) {
connection = c;
}
@Override
public void onMessage(Node node, byte[] msg) {
PBFTMessage pbftMessage = PBFTMessage.parse(msg);
if (pbftMessage.type == PBFTType.Request) {
ContractRequest cr = ContractRequest.parse(pbftMessage.content);
committer.onCommit(cr);
}
}
}

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package org.bdware.sc.units;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
public class ByteUtil {
// public static byte[] readRest(ByteArrayInputStream bi) {
// byte[] ret = new byte[bi.available()];
// bi.read(ret, 0, ret.length);
// return ret;
// }
public static int readInt(ByteArrayInputStream bi) {
int ret = 0;
ret |= (bi.read() & 0xff);
ret <<= 8;
ret |= (bi.read() & 0xff);
ret <<= 8;
ret |= (bi.read() & 0xff);
ret <<= 8;
ret |= (bi.read() & 0xff);
return ret;
}
public static void writeInt(ByteArrayOutputStream bo, int i) {
bo.write((i >> 24) & 0xff);
bo.write((i >> 16) & 0xff);
bo.write((i >> 8) & 0xff);
bo.write(i & 0xff);
}
public static void writeLong(ByteArrayOutputStream bo, long l) {
for (int i = 56; i >= 0; i -= 8) {
bo.write(((int) (l >> i)) & 0xff);
}
}
public static long readLong(ByteArrayInputStream bi) {
long ret = 0L;
for (int i = 0; i < 8; i++) {
ret <<= 8;
ret |= (bi.read() & 0xff);
}
return ret;
}
public static byte[] readBytes(ByteArrayInputStream bi, int len) {
byte[] ret = new byte[len];
bi.read(ret, 0, len);
return ret;
}
}

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package org.bdware.sc.units;
import java.io.*;
/*
* 节点启动后记录自己的units信息和合约的一些信息
* 节点重新上线后NC发要求让其恢复则从本地读取自己的这些信息进行恢复
*/
public class ContractRecord implements Serializable {
/* private static final long serialVersionUID = 704775241674568688L;
public transient RecoverFlag recoverFlag = RecoverFlag.Fine;
public String contractID;
public String contractName;
public String key;
public String contractpubKey;
public ContractType type;
public int copies = 1;
public int lastExeSeq = -1;
public boolean isPrivate = false;
public String pubKeyPath;
public String ypkName;
//public Map<String,String> members; //k-udpid,v-udpaddress
public String memory = "";
//JavaScriptEntry
public String invokeID;
public ContractRecord(String id){
this.contractID = id;
}
public ContractRecord(String id,String contractName,String key,String contractpubKey,ContractType type,int copies){
this.contractID = id;
this.contractName = contractName;
this.key = key;
this.contractpubKey = contractpubKey;
this.type = type;
this.copies = copies;
}
public void printContent(){
System.out.println("==========ContractRecord========");
System.out.println("contractID=" + contractID == null ? "null" : contractID);
System.out.println("contractName=" + contractName == null ? "null" : contractName);
System.out.println("key=" + key == null ? "null" : key);
System.out.println("contractPubKey=" + contractpubKey == null ? "null" : contractpubKey);
System.out.println("type=" + type == null ? "null" : type);
System.out.println("lastExeSeq=" + lastExeSeq == null ? "null" : lastExeSeq);
System.out.println("invokeID=" + invokeID == null ? "null" : invokeID);
System.out.println("copies=" + copies);
System.out.println("isPrivate=" + isPrivate);
System.out.println("pubKeyPath=" + pubKeyPath == null ? "null" : pubKeyPath);
System.out.println("ypkName=" + ypkName == null ? "null" : ypkName);
if(members != null){
for(String k : members.keySet()){
System.out.println("members " + k + "-" + members.get(k));
}
}
System.out.println("memory=" + memory == null ? "null" : memory);
System.out.println("==========ContractRecord print finish=======");
}
public static void getContentFromFile(String path){
File file = new File(path);
try{
FileInputStream os = new FileInputStream(file);
ObjectInputStream oos = new ObjectInputStream(os);
ContractRecord record = (ContractRecord) oos.readObject();
record.printContent();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}*/
}

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package org.bdware.sc.units;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.bdware.sc.ContractManager;
import org.bdware.sc.conn.Node;
import org.bdware.sc.sequencing.SequencingAlgorithm;
import java.io.Serializable;
import java.util.*;
public class ContractUnitController {
private static final Logger LOGGER = LogManager.getLogger(ContractUnitController.class);
private final TrustfulExecutorConnection connection;
private final Map<String, ContractUnit> units; //这个节点上<合约id合约集群>其中每个ContractUnit中存储了对应合约id的其他节点udp信息
ContractManager manager;
SequencingAlgorithmFactory algorithmFactory;
public ContractUnitController(
TrustfulExecutorConnection connection,
ContractManager manager,
SequencingAlgorithmFactory factory) {
this.connection = connection;
this.manager = manager;
algorithmFactory = factory;
units = new HashMap<>();
}
public void onContractUnitMessage(final ContractUnitMessage cumsg, Node node) {
ContractUnit unit;
switch (cumsg.type) {
case Start:
ContractUnitStartRequest req = ContractUnitStartRequest.parse(cumsg.content);
unit = new ContractUnit();
unit.connection = connection;
String result = manager.startContract(req.contract);
unit.contractID = req.contract.getID();
unit.sequencingAlgorithm = algorithmFactory.create(req, unit);
unit.node2member = new HashMap<>();
units.put(req.contract.getID(), unit);
System.out.println(
"[ContractUnitController] startContract:"
+ result
+ " isMaster:"
+ req.isMaster
+ " cid:"
+ req.contract.getID());
break;
case AddMember:
LOGGER.debug("contractID:" + cumsg.getContractID());
unit = units.get(cumsg.getContractID());
unit.addMember(node, cumsg); //启动通过在UDPTrustExecutor中遍历memebers使得这个合约集群中每个节点都有其他节点的UDP信息便于之后护发UDP消息
break;
case Sequencing:
unit = units.get(cumsg.getContractID());
ContractUnitMember member = unit.node2member.get(node);
unit.sequencingAlgorithm.onMessage(member, cumsg.content);
break;
case Unknown:
default:
//recover start
ContractUnitStartRequest req2 = ContractUnitStartRequest.parse(cumsg.content);
unit = new ContractUnit();
unit.connection = connection;
unit.contractID = req2.contract.getID();
unit.sequencingAlgorithm = algorithmFactory.create(req2, unit);
unit.node2member = new HashMap<>();
units.put(req2.contract.getID(), unit);
System.out.println(
"[ContractUnitController] startContract:"
+ " isMaster:"
+ req2.isMaster
+ " cid:"
+ req2.contract.getID());
break;
}
}
public ContractUnit getContractUnit(String id) {
return units.get(id);
}
public static class ContractUnit implements TrustfulExecutorConnection, Serializable {
public String contractID;
public Map<Node, ContractUnitMember> node2member; //存储和自己在一个合约集群的其他节点信息
private transient SequencingAlgorithm sequencingAlgorithm;
private transient TrustfulExecutorConnection connection;
public synchronized void broadcast(ContractUnitMessage cuMessage) {
for (Node node : node2member.keySet()) {
connection.sendMessage(node, cuMessage.toByteArray());
}
}
public String addMember(Node node, ContractUnitMessage msg) {
ContractUnitMember member;
try {
// TODO
member = new ContractUnitMember(node);
sequencingAlgorithm.onMessage(member, msg.content);
node2member.put(node, member);
return "success";
} catch (Exception e) {
e.printStackTrace();
return "failed";
}
}
@Override
public void sendMessage(Node node, byte[] msg) {
ContractUnitMember member = (ContractUnitMember) node;
ContractUnitMessage unitMsg = new ContractUnitMessage();
unitMsg.setContractID(contractID);
unitMsg.type = ContractUnitType.Sequencing;
unitMsg.content = msg;
System.out.println("[ContractUnitController] sendMsg:" + unitMsg.getDisplayStr());
// TODO sig here.
connection.sendMessage(member.getNode(), unitMsg.toByteArray());
}
}
static class PCInfo {
public ContractUnitMessage request;
Set<Integer> prepare;
Set<Integer> commit;
boolean isPrePrepareReceived;
boolean isSendCommit;
boolean isSendReply;
List<ContractUnitMessage> buff;
PCInfo() {
prepare = new HashSet<>();
commit = new HashSet<>();
buff = new ArrayList<>();
isSendCommit = false;
isSendReply = false;
isPrePrepareReceived = false;
}
public String getDisplayStr() {
return "pSize:"
+ (prepare == null ? "null" : prepare.size())
+ " cSize:"
+ (commit == null ? "null" : commit.size())
+ " isSendCommit:"
+ isSendCommit
+ " isSendReply:"
+ isSendReply
+ " buffSize:"
+ buff.size();
}
}
}

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package org.bdware.sc.units;
import org.bdware.sc.conn.Node;
public class ContractUnitMember extends Node {
private static final long serialVersionUID = 8175664649689078937L;
public Node node;
public String pubKey;
public ContractUnitMember(Node node) {
this.node = node;
}
public Node getNode() {
return node;
}
}

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package org.bdware.sc.units;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import org.bouncycastle.crypto.params.ECPublicKeyParameters;
import org.zz.gmhelper.BCECUtil;
import org.zz.gmhelper.SM2Util;
public class ContractUnitMessage implements Serializable {
private static final long serialVersionUID = 584934384202845750L;
ContractUnitType type;
private String contractID;
String requestID;
String signature;
byte[] content;
public ContractUnitMessage(String requestID, String contractID, byte[] sender) {
this.requestID = requestID;
this.setContractID(contractID);
}
public ContractUnitMessage() {
// TODO Auto-generated constructor stub
}
public static ContractUnitMessage parse(byte[] b) {
try {
ByteArrayInputStream bi = new ByteArrayInputStream(b);
ObjectInputStream input = new ObjectInputStream(bi);
ContractUnitMessage ret = (ContractUnitMessage) input.readObject();
return ret;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public byte[] toByteArray() {
try {
ByteArrayOutputStream bo = new ByteArrayOutputStream();
ObjectOutputStream output = new ObjectOutputStream(bo);
output.writeObject(this);
return bo.toByteArray();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
private static String IDA = "PBFTMsg";
// public void sign(NodeInfo info) {
// sender = info.getNodeID();
// signature = sm02.sign(content, IDA, info.privKey).toString();
// }
public boolean verify(ContractUnitMember member) {
ECPublicKeyParameters param = BCECUtil.createECPublicKeyFromStrParameters(member.pubKey,SM2Util.CURVE,SM2Util.DOMAIN_PARAMS);
return SM2Util.verify(param,content, signature.getBytes());
}
public void setType(ContractUnitType type) {
this.type = type;
}
public ContractUnitType getType() {
return type;
}
public byte[] getContent() {
return content;
}
public void setContent(byte[] content) {
this.content = content;
}
public String getContractID() {
return contractID;
}
public String getRequestID() {
return requestID;
}
public String getDisplayStr() {
StringBuilder sb = new StringBuilder();
sb.append(requestID);
sb.append("_TYPE_").append(type);
sb.append("_");
sb.append(getContractID());
sb.append("_");
sb.append(" content:");
sb.append(new String(content));
return sb.toString();
}
public void setContractID(String contractID) {
this.contractID = contractID;
}
}

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package org.bdware.sc.units;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import org.bdware.sc.bean.Contract;
import org.bdware.sc.conn.Node;
public class ContractUnitStartRequest implements Serializable {
/**
*
*/
private static final long serialVersionUID = -1540780483790689627L;
public Contract contract;
public boolean isMaster;
public Node[] members;
public static ContractUnitStartRequest parse(byte[] content) {
try {
ByteArrayInputStream input = new ByteArrayInputStream(content);
ObjectInputStream objInput;
objInput = new ObjectInputStream(input);
return (ContractUnitStartRequest) objInput.readObject();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public byte[] toByteArray() {
try {
ByteArrayOutputStream bo = new ByteArrayOutputStream();
ObjectOutputStream objOutput = new ObjectOutputStream(bo);
objOutput.writeObject(this);
return bo.toByteArray();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}

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package org.bdware.sc.units;
import java.io.Serializable;
public enum ContractUnitType implements Serializable {
Start(0), AddMember(1), Sequencing(2), Unknown(3);
private int type;
private ContractUnitType(int i) {
type = i;
}
public static ContractUnitType fromByte(int i) {
switch (i) {
case 0:
return Start;
case 1:
return AddMember;
case 2:
return Sequencing;
default:
return Unknown;
}
}
public int toInt() {
return type;
}
}

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package org.bdware.sc.units;
import com.google.gson.JsonArray;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.bdware.sc.bean.ContractExecType;
import org.bdware.sc.bean.ContractRequest;
import org.bdware.sc.bean.IDSerializable;
import org.bdware.sc.conn.ResultCallback;
import org.bdware.sc.db.CMTables;
import org.bdware.sc.db.KeyValueDBUtil;
import org.bdware.sc.redo.TransRecord;
import org.bdware.sc.util.JsonUtil;
import org.bdware.server.trustedmodel.ContractExecutor;
import org.bdware.server.trustedmodel.ContractUnitStatus;
import java.util.Map;
import java.util.PriorityQueue;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicInteger;
// 在每个节点上均有
public class MultiContractMeta implements IDSerializable {
private static final Logger LOGGER = LogManager.getLogger(MultiContractMeta.class);
private final AtomicInteger lastExeSeq; // last executed request seq
public volatile int curExeSeq = -1; // 当前正在执行请求序号 for multipoint contract requests
public String memory;
public String key; // privateKey
public String publicKey;
public String invokeID; // TODO
public ContractExecType type;
public ContractUnitStatus unitStatus = ContractUnitStatus.CommonMode;
public transient ContractExecutor contractExecutor;
public transient PriorityQueue<ContractRequest> queue; // contract request
public transient Map<Integer, String> uniReqIDMap; // 用于请求
public transient Map<Integer, ResultCallback> resultMap; // 用于请求
public transient PriorityQueue<TransRecord> trans_queue; // transRecord
AtomicInteger masterOrder = new AtomicInteger(-1);
private String contractID;
private boolean isPrivate = false;
private String pubKeyPath;
private String ypkName;
private String[] members; // 执行这个合约的所有节点的pubKey
private boolean isMaster;
private String masterNode;
public MultiContractMeta(String s) {
contractID = s;
isMaster = false;
masterNode = null;
lastExeSeq = new AtomicInteger(-1);
initQueue();
}
public void initQueue() {
queue = new PriorityQueue<>();
trans_queue = new PriorityQueue<>();
uniReqIDMap = new ConcurrentHashMap<>();
resultMap = new ConcurrentHashMap<>();
}
public int getCurSeqAtMaster() {
return masterOrder.get();
}
public void nextSeqAtMaster() {
masterOrder.getAndIncrement();
}
public void setSeqAtMaster(int seq) {
masterOrder = new AtomicInteger(seq);
}
public void init(MultiContractMeta old) {
if (old != null && old.hasQueues()) {
queue = old.queue;
trans_queue = old.trans_queue;
uniReqIDMap = old.uniReqIDMap;
resultMap = old.resultMap;
} else {
if (null == queue) {
queue = new PriorityQueue<>();
}
if (null == trans_queue) {
trans_queue = new PriorityQueue<>();
}
if (null == uniReqIDMap) {
uniReqIDMap = new ConcurrentHashMap<>();
}
if (null == resultMap) {
resultMap = new ConcurrentHashMap<>();
}
}
}
private boolean hasQueues() {
return null != queue && null != trans_queue && null != uniReqIDMap && null != resultMap;
}
public int getLastExeSeq() {
return this.lastExeSeq.get();
}
public void setLastExeSeq(int lastExeSeq) {
this.lastExeSeq.set(lastExeSeq);
if (KeyValueDBUtil.instance.containsKey(
CMTables.LastExeSeq.toString(), contractID)) { // 如果现在是Stable模式就同步刷到磁盘
KeyValueDBUtil.instance.setValue(
CMTables.LastExeSeq.toString(), contractID, String.valueOf(lastExeSeq));
}
}
public boolean isSequent(int a) {
return a - lastExeSeq.get() == 1;
}
public String getContractID() {
return contractID;
}
public void setContractID(String id) {
contractID = id;
}
public String getID() {
return contractID;
}
public void setIsPrivate(boolean t) {
isPrivate = t;
}
public boolean isPrivate() {
return isPrivate;
}
public String getPubKeyPath() {
if (!isPrivate) {
return null;
}
return pubKeyPath;
}
public void setPubKeyPath(String p) {
pubKeyPath = p;
}
public String getYpkName() {
return ypkName;
}
public void setYpkName(String s) {
ypkName = s;
}
public String[] getMembers() {
return members;
}
public void setMembers(String[] m) {
members = m;
}
public void setMembers(JsonArray members) {
String[] copied = new String[members.size()];
for (int i = 0; i < members.size(); i++) {
copied[i] = members.get(i).getAsString();
}
this.members = copied;
}
public void printSet() {
for (ContractRequest cr : queue) {
LOGGER.debug("请求-" + cr.seq);
}
}
public void addRequestQueue(ContractRequest request, String uniReqID, ResultCallback result) {
LOGGER.info("put to queue, seq:" + request.seq + " queue.size:" + queue.size());
queue.add(request);
int seq = request.seq;
uniReqIDMap.put(seq, uniReqID);
resultMap.put(seq, result);
}
public void printContent() {
System.out.println("contractID=" + (contractID == null ? "null" : contractID));
System.out.println("isPrivate=" + isPrivate);
System.out.println("pubKeyPath=" + (pubKeyPath == null ? "null" : pubKeyPath));
System.out.println("ypkName=" + (ypkName == null ? "null" : ypkName));
System.out.println("key=" + (key == null ? "null" : key));
System.out.println("publicKey=" + (publicKey == null ? "null" : publicKey));
System.out.println("invokeID=" + (invokeID == null ? "null" : invokeID));
System.out.println("type=" + (type == null ? "null" : type));
System.out.println("lastExeSeq=" + lastExeSeq);
System.out.println("members=" + (members == null ? "null" : JsonUtil.toJson(members)));
System.out.println("memory=" + (memory == null ? "null" : memory));
}
public void setIsMaster(boolean isMaster) {
this.isMaster = isMaster;
}
public boolean isMaster() {
return isMaster;
}
public void setMaster(String master) {
masterNode = master;
}
public String getMasterNode() {
return masterNode;
}
public void setContractExecutor(ContractExecutor contractExecutor) {
this.contractExecutor = contractExecutor;
}
}

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package org.bdware.sc.units;
public enum RecoverFlag {
Fine,ToRecover,Recovering;
}

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package org.bdware.sc.units;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import java.util.concurrent.atomic.AtomicInteger;
public class RespCache {
private static final Logger LOGGER = LogManager.getLogger(RespCache.class);
public String val = null;
public int count; // copies
public long time;
public boolean isExecuting = false;
AtomicInteger waiter = new AtomicInteger(0);
boolean timeout = true;
public boolean waitForHalf() {
try {
synchronized (waiter) {
LOGGER.info("waitForHalf, " + waiter.get() + " count:" + count);
time = System.currentTimeMillis();
if (waiter.incrementAndGet() * 2 > count) {
return timeout;
} else {
waiter.wait(5000L);
timeout &= waiter.get() * 2 > count;
if (!timeout) waiter.notifyAll();
return timeout;
}
}
} catch (Exception e) {
e.printStackTrace();
timeout &= waiter.get() * 2 > count;
return timeout;
}
}
public void notifyAllWaiter() {
synchronized (waiter) {
waiter.notifyAll();
}
}
public void waitForResult() {
synchronized (waiter) {
try {
waiter.wait(5000L);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}

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package org.bdware.sc.units;
public class ResultCache {
public String val = null;
public long time;
boolean timeout = true;
}

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package org.bdware.sc.units;
import org.bdware.sc.sequencing.SequencingAlgorithm;
import org.bdware.sc.units.ContractUnitController.ContractUnit;
public interface SequencingAlgorithmFactory {
public SequencingAlgorithm create(ContractUnitStartRequest req, ContractUnit unit);
}

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package org.bdware.sc.units;
import org.bdware.sc.conn.Node;
public interface TrustfulExecutorConnection {
public void sendMessage(Node node, byte[] msg);
}

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package org.bdware.server.trustedmodel;
import org.bdware.sc.bean.ContractRequest;
import org.bdware.sc.conn.ResultCallback;
public interface ContractExecutor {
void execute(String requestID, ResultCallback rc, ContractRequest req);
}

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package org.bdware.server.trustedmodel;
import java.io.Serializable;
public enum ContractUnitStatus implements Serializable {
CommonMode,
StableMode;
}

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package org.bdware.sc.test;
import org.bdware.sc.ContractManager;
public class ContractManagerTest {
public static void main(String[] args) {
ContractManager.yjsPath = "./generatedlib/yjs.jar";
ContractManager.instance = new ContractManager();
}
}

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package org.bdware.sc.units;
import org.junit.Test;
public class RespCacheTest {
@Test
public void timeOutAllFalse() throws InterruptedException {
RespCache cache = new RespCache();
cache.count = 7;
for (int i = 0; i < 7; i++) {
final int j = i;
new Thread(() -> {
try {
Thread.sleep(j * 1000);
if (j > 2) Thread.sleep(6 * 1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
boolean waitResult = cache.waitForHalf();
System.out.println(
"tid:"
+ Thread.currentThread().getId()
+ " reach target, waitResult:"
+ waitResult);
}).start();
}
Thread.sleep(20000);
}
@Test
public void inTimeAllTrue() throws InterruptedException {
RespCache cache = new RespCache();
cache.count = 7;
for (int i = 0; i < 7; i++) {
final int j = i;
new Thread(() -> {
try {
Thread.sleep(j * 1000);
if (j > 2) Thread.sleep(1900);
} catch (InterruptedException e) {
e.printStackTrace();
}
boolean waitResult = cache.waitForHalf();
System.out.println(
"tid:"
+ Thread.currentThread().getId()
+ " reach target, waitResult:"
+ waitResult);
}).start();
}
Thread.sleep(20000);
}
@Test
public void fastAllTrue() throws InterruptedException {
RespCache cache = new RespCache();
cache.count = 7;
for (int i = 0; i < 7; i++) {
new Thread(() -> {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
boolean waitResult = cache.waitForHalf();
System.out.println(
"tid:"
+ Thread.currentThread().getId()
+ " reach target, waitResult:"
+ waitResult);
}).start();
}
Thread.sleep(10000);
}
}