Author: michim
Date: Wed May 21 17:48:37 2014
New Revision: 1596635
URL: http://svn.apache.org/r1596635
Log:
ZOOKEEPER-1699. Forgot to add a new file.
Added:
zookeeper/trunk/src/java/main/org/apache/zookeeper/server/quorum/SyncedLearnerTracker.java
Added:
zookeeper/trunk/src/java/main/org/apache/zookeeper/server/quorum/SyncedLearnerTracker.java
URL:
http://svn.apache.org/viewvc/zookeeper/trunk/src/java/main/org/apache/zookeeper/server/quorum/SyncedLearnerTracker.java?rev=1596635&view=auto
==============================================================================
---
zookeeper/trunk/src/java/main/org/apache/zookeeper/server/quorum/SyncedLearnerTracker.java
(added)
+++
zookeeper/trunk/src/java/main/org/apache/zookeeper/server/quorum/SyncedLearnerTracker.java
Wed May 21 17:48:37 2014
@@ -0,0 +1,82 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.zookeeper.server.quorum;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+
+import org.apache.zookeeper.server.quorum.flexible.QuorumVerifier;
+
+public class SyncedLearnerTracker {
+
+ protected ArrayList<QuorumVerifierAcksetPair> qvAcksetPairs =
+ new ArrayList<QuorumVerifierAcksetPair>();
+
+ public void addQuorumVerifier(QuorumVerifier qv) {
+ qvAcksetPairs.add(new QuorumVerifierAcksetPair(qv,
+ new HashSet<Long>(qv.getVotingMembers().size())));
+ }
+
+ public boolean addAck(Long sid) {
+ boolean change = false;
+ for (QuorumVerifierAcksetPair qvAckset : qvAcksetPairs) {
+ if
(qvAckset.getQuorumVerifier().getVotingMembers().containsKey(sid)) {
+ qvAckset.getAckset().add(sid);
+ change = true;
+ }
+ }
+ return change;
+ }
+
+ public boolean hasAllQuorums() {
+ for (QuorumVerifierAcksetPair qvAckset : qvAcksetPairs) {
+ if
(!qvAckset.getQuorumVerifier().containsQuorum(qvAckset.getAckset()))
+ return false;
+ }
+ return true;
+ }
+
+ public String ackSetsToString(){
+ StringBuilder sb = new StringBuilder();
+
+ for (QuorumVerifierAcksetPair qvAckset : qvAcksetPairs) {
+ sb.append(qvAckset.getAckset().toString()).append(",");
+ }
+
+ return sb.substring(0, sb.length()-1);
+ }
+
+ public static class QuorumVerifierAcksetPair {
+ private final QuorumVerifier qv;
+ private final HashSet<Long> ackset;
+
+ public QuorumVerifierAcksetPair(QuorumVerifier qv, HashSet<Long>
ackset) {
+ this.qv = qv;
+ this.ackset = ackset;
+ }
+
+ public QuorumVerifier getQuorumVerifier() {
+ return this.qv;
+ }
+
+ public HashSet<Long> getAckset() {
+ return this.ackset;
+ }
+ }
+}
