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feat: update DHTUtil

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update DHTUtil.getClusterByKey to ignore prefix '04' of nodeIds
This commit is contained in:
Frank.R.Wu 2021-12-09 15:04:39 +08:00
parent 896cbfeb5b
commit 14e918fa18
1 changed files with 6 additions and 6 deletions
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12
src/main/java/org/bdware/sc/util/DHTUtil.java
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@ -16,14 +16,14 @@ public class DHTUtil {
if (nodes.length == 0) {
return null;
}
if (nodes.length <= k) {
if (nodes.length == 1) {
return nodes;
}
String hash = HashUtil.sha3ToFixedLen(key, nodes[0].length());
String hash = HashUtil.sha3ToFixedLen(key, nodes[0].length() - 2);
int l = 0, r = nodes.length - 1, m,
h2l = hash.compareTo(nodes[l]), r2h = nodes[r].compareTo(hash),
h2l = hash.compareTo(nodes[l].substring(2)), r2h = nodes[r].substring(2).compareTo(hash),
h2m;
BigInteger bigH = null;
String selected;
@ -41,7 +41,7 @@ public class DHTUtil {
if (l + 1 == r) {
BigInteger bigL = getBigInteger(nodes[l]),
bigR = getBigInteger(nodes[r]);
bigH = new BigInteger(hash.substring(2));
bigH = new BigInteger(hash);
if (bigR.subtract(bigH).compareTo(bigH.subtract(bigL)) > -1) {
selected = nodes[l];
m = l;
@ -52,7 +52,7 @@ public class DHTUtil {
break;
}
m = (l + r) >> 1;
h2m = hash.compareTo(nodes[m]);
h2m = hash.compareTo(nodes[m].substring(2));
if (h2m < 1) {
r = m;
r2h = -h2m;
@ -76,7 +76,7 @@ public class DHTUtil {
ret.add(nodes[l--]);
} else {
if (null == bigH) {
bigH = new BigInteger(hash.substring(2));
bigH = new BigInteger(hash);
}
if (getBigInteger(nodes[r]).subtract(bigH)
.compareTo(bigH.subtract(getBigInteger(nodes[l]))) > -1) {