getPreviewMapResult

backend/src/main/java/org/bdware/sc/registry/DBConnector.java

@@ -5,10 +5,7 @@ import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.bdware.sc.util.ExceptionUtil;
 
-import java.sql.Connection;
-import java.sql.DriverManager;
-import java.sql.PreparedStatement;
-import java.sql.SQLException;
+import java.sql.*;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
@@ -62,7 +59,6 @@ public class DBConnector {
   }
 
   public static void insert(String schema, String table, Map<String, Object> items) {
-//    if (!items.containsKey("time") || items.get("time").equals("0")) return; // If time is null, do nothing.
     // prepare columns and values needed in sql
     StringBuilder columns = new StringBuilder();
     StringBuilder values = new StringBuilder();
@@ -75,11 +71,6 @@ public class DBConnector {
     columns.deleteCharAt(columns.lastIndexOf(","));
     values.deleteCharAt(values.lastIndexOf(","));
 
-    // generate sql
-    // example:
-    // INSERT INTO "public"."doip_request" ("op","server_doid","status_code","client_doid","do_prefix",
-    // "response_hash","server_pubkey","do_data_id","do_repo","request_hash","client_pubkey","server_ip",
-    // "client_ip","time","record_hash") VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)
     String sql = "INSERT INTO \"" + schema + "\".\"" + table + "\" (" + columns + ") VALUES (" + values + ")";
 
     // execute sql
@@ -102,4 +93,28 @@ public class DBConnector {
     connClose(jdbcConnection);
   }
 
+  public static String querySampleByMetaID(String doid) {
+    String ret = "";
+    String sql = "SELECT sample FROM registry.meta_data WHERE doid = ?;";
+
+    // execute sql
+    PreparedStatement pstmt = null;
+    try {
+      connect();
+      pstmt = jdbcConnection.prepareStatement(sql);
+      pstmt.setString(1, doid);
+      ResultSet rs = null;
+      rs = pstmt.executeQuery();
+      if (rs.next()) {
+        ret = rs.getString("sample");
+      }
+      pstmt.execute();
+    } catch (SQLException e) {
+      LOGGER.error(e.getMessage());
+      LOGGER.debug(ExceptionUtil.exceptionToString(e));
+    }
+    pstmtClose(pstmt);
+    connClose(jdbcConnection);
+    return ret;
+  }
 }

backend/src/main/java/org/bdware/sc/registry/Hello.java

@@ -4,12 +4,14 @@ import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.bdware.sc.ContractProcess;
 import org.bdware.sc.boundry.JavaScriptEntry;
+import org.bdware.sc.debugger.DebugMain;
+
 
 public class Hello {
     private static final Logger LOGGER = LogManager.getLogger(Hello.class);
 
     public static void main(String[] args) {
-        LOGGER.info("abc");
+        DebugMain.main(args);
     }
 
     public static String call() {

backend/src/main/java/org/bdware/sc/registry/RegistryDB.java

@@ -5,14 +5,17 @@ import com.google.gson.JsonObject;
 import org.bdware.sc.engine.JSONTool;
 import wrp.jdk.nashorn.api.scripting.ScriptObjectMirror;
 import java.sql.SQLException;
+import org.bdware.sc.util.JsonUtil;
 import java.util.HashMap;
 import java.util.Map;
 
+import static org.bdware.sc.engine.JSONTool.convertMirrorToJson;
+
 
 public class RegistryDB {
   public static void init(ScriptObjectMirror arg, String requester) {
     try {
-      JsonObject jsonData = JSONTool.convertMirrorToJson(arg).getAsJsonObject();
+      JsonObject jsonData = convertMirrorToJson(arg).getAsJsonObject();
       DBConnector.url = jsonData.get("DBUrl").getAsString();
       DBConnector.password = jsonData.get("password").getAsString();
       DBConnector.userName = jsonData.get("username").getAsString();
@@ -29,5 +32,14 @@ public class RegistryDB {
     }
   }
 
-
+  public static Object querySampleByMetaID(ScriptObjectMirror scriptMirrorObject) {
+    JsonObject jo = convertMirrorToJson(scriptMirrorObject).getAsJsonObject();
+    JsonObject ret = new JsonObject();
+    String sample = DBConnector.querySampleByMetaID(jo.get("localMetaID").getAsString());
+    if(!sample.equals("")) {
+      ret = JsonUtil.parseStringAsJsonObject(sample);
+    }
+    System.out.println(sample);
+    return JSONTool.convertJsonElementToMirror(ret);
+  }
 }