/*
- * Copyright (c) 2014 Brocade Communications Systems, Inc. and others. All rights reserved.
+ * Copyright (c) 2015 Brocade Communications Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
-package org.opendaylight.controller.cluster.datastore.utils;
+package org.opendaylight.controller.cluster.raft.utils;
-import static org.junit.Assert.assertEquals;
+import akka.dispatch.Futures;
+import akka.japi.Procedure;
+import akka.persistence.PersistentConfirmation;
+import akka.persistence.PersistentId;
+import akka.persistence.PersistentImpl;
+import akka.persistence.PersistentRepr;
+import akka.persistence.journal.japi.AsyncWriteJournal;
+import com.google.common.collect.Maps;
+import com.google.common.util.concurrent.Uninterruptibles;
+import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
+import java.util.List;
import java.util.Map;
import java.util.concurrent.Callable;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
-import com.google.common.collect.Maps;
-import com.google.common.util.concurrent.Uninterruptibles;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
import scala.concurrent.Future;
-import akka.dispatch.Futures;
-import akka.japi.Procedure;
-import akka.persistence.PersistentConfirmation;
-import akka.persistence.PersistentId;
-import akka.persistence.PersistentImpl;
-import akka.persistence.PersistentRepr;
-import akka.persistence.journal.japi.AsyncWriteJournal;
+/**
+ * An akka AsyncWriteJournal implementation that stores data in memory. This is intended for testing.
+ *
+ * @author Thomas Pantelis
+ */
public class InMemoryJournal extends AsyncWriteJournal {
+ static final Logger LOG = LoggerFactory.getLogger(InMemoryJournal.class);
+
private static final Map<String, Map<Long, Object>> journals = new ConcurrentHashMap<>();
private static final Map<String, CountDownLatch> deleteMessagesCompleteLatches = new ConcurrentHashMap<>();
+ private static final Map<String, CountDownLatch> writeMessagesCompleteLatches = new ConcurrentHashMap<>();
+
private static final Map<String, CountDownLatch> blockReadMessagesLatches = new ConcurrentHashMap<>();
public static void addEntry(String persistenceId, long sequenceNr, Object data) {
journals.clear();
}
+ @SuppressWarnings("unchecked")
+ public static <T> List<T> get(String persistenceId, Class<T> type) {
+ Map<Long, Object> journalMap = journals.get(persistenceId);
+ if(journalMap == null) {
+ return Collections.<T>emptyList();
+ }
+
+ synchronized (journalMap) {
+ List<T> journal = new ArrayList<>(journalMap.size());
+ for(Object entry: journalMap.values()) {
+ if(type.isInstance(entry)) {
+ journal.add((T) entry);
+ }
+ }
+
+ return journal;
+ }
+ }
+
public static Map<Long, Object> get(String persistenceId) {
- Map<Long, Object> journal = journals.get(persistenceId);
- return journal != null ? journal : Collections.<Long, Object>emptyMap();
+ Map<Long, Object> journalMap = journals.get(persistenceId);
+ return journalMap != null ? journalMap : Collections.<Long, Object>emptyMap();
+ }
+
+ public static void dumpJournal(String persistenceId) {
+ StringBuilder builder = new StringBuilder(String.format("Journal log for %s:", persistenceId));
+ Map<Long, Object> journalMap = journals.get(persistenceId);
+ if(journalMap != null) {
+ synchronized (journalMap) {
+ for(Map.Entry<Long, Object> e: journalMap.entrySet()) {
+ builder.append("\n ").append(e.getKey()).append(" = ").append(e.getValue());
+ }
+ }
+ }
+
+ LOG.info(builder.toString());
}
public static void waitForDeleteMessagesComplete(String persistenceId) {
- assertEquals("Recovery complete", true, Uninterruptibles.awaitUninterruptibly(
- deleteMessagesCompleteLatches.get(persistenceId), 5, TimeUnit.SECONDS));
+ if(!Uninterruptibles.awaitUninterruptibly(deleteMessagesCompleteLatches.get(persistenceId), 5, TimeUnit.SECONDS)) {
+ throw new AssertionError("Delete messages did not complete");
+ }
+ }
+
+ public static void waitForWriteMessagesComplete(String persistenceId) {
+ if(!Uninterruptibles.awaitUninterruptibly(writeMessagesCompleteLatches.get(persistenceId), 5, TimeUnit.SECONDS)) {
+ throw new AssertionError("Journal write messages did not complete");
+ }
}
public static void addDeleteMessagesCompleteLatch(String persistenceId) {
deleteMessagesCompleteLatches.put(persistenceId, new CountDownLatch(1));
}
+ public static void addWriteMessagesCompleteLatch(String persistenceId, int count) {
+ writeMessagesCompleteLatches.put(persistenceId, new CountDownLatch(count));
+ }
+
public static void addBlockReadMessagesLatch(String persistenceId, CountDownLatch latch) {
blockReadMessagesLatches.put(persistenceId, latch);
}
@Override
public Future<Long> doAsyncReadHighestSequenceNr(String persistenceId, long fromSequenceNr) {
- return Futures.successful(-1L);
+ // Akka calls this during recovery.
+
+ Map<Long, Object> journal = journals.get(persistenceId);
+ if(journal == null) {
+ return Futures.successful(-1L);
+ }
+
+ synchronized (journal) {
+ long highest = -1;
+ for (Long seqNr : journal.keySet()) {
+ if(seqNr.longValue() >= fromSequenceNr && seqNr.longValue() > highest) {
+ highest = seqNr.longValue();
+ }
+ }
+
+ return Futures.successful(highest);
+ }
}
@Override
}
synchronized (journal) {
+ LOG.trace("doAsyncWriteMessages: id: {}: seqNr: {}, payload: {}", repr.persistenceId(),
+ repr.sequenceNr(), repr.payload());
journal.put(repr.sequenceNr(), repr.payload());
}
+
+ CountDownLatch latch = writeMessagesCompleteLatches.get(repr.persistenceId());
+ if(latch != null) {
+ latch.countDown();
+ }
}
+
return null;
}
}, context().dispatcher());
Code Review / controller.git / blobdiff