/*
* 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.brooklyn.core.mgmt.ha;
import static com.google.common.base.Preconditions.checkNotNull;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
import org.apache.brooklyn.api.mgmt.ha.ManagementNodeSyncRecord;
import org.apache.brooklyn.api.mgmt.ha.ManagementPlaneSyncRecord;
import org.apache.brooklyn.api.mgmt.ha.ManagementPlaneSyncRecordPersister;
import org.apache.brooklyn.core.mgmt.ha.ManagementPlaneSyncRecordPersisterToObjectStore;
import org.apache.brooklyn.core.mgmt.persist.InMemoryObjectStore;
import org.apache.brooklyn.util.time.Duration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.annotations.VisibleForTesting;
/** @deprecated since 0.7.0 use {@link ManagementPlaneSyncRecordPersisterToObjectStore}
* with {@link InMemoryObjectStore}
* <code>
* new ManagementPlaneSyncRecordPersisterToObjectStore(new InMemoryObjectStore(), classLoader)
* </code> */
@Deprecated
public class ManagementPlaneSyncRecordPersisterInMemory implements ManagementPlaneSyncRecordPersister {
private static final Logger LOG = LoggerFactory.getLogger(ManagementPlaneSyncRecordPersisterInMemory.class);
private final MutableManagementPlaneSyncRecord memento = new MutableManagementPlaneSyncRecord();
private volatile boolean running = true;
@Override
public synchronized void stop() {
running = false;
}
@Override
public ManagementPlaneSyncRecord loadSyncRecord() throws IOException {
if (!running) {
throw new IllegalStateException("Persister not running; cannot load memento");
}
return memento.snapshot();
}
@VisibleForTesting
@Override
public synchronized void waitForWritesCompleted(Duration timeout) throws InterruptedException, TimeoutException {
// The synchronized is sufficient - guarantee that no concurrent calls
return;
}
@Override
public synchronized void delta(Delta delta) {
if (!running) {
if (LOG.isDebugEnabled()) LOG.debug("Persister not running; ignoring checkpointed delta of manager-memento");
return;
}
for (ManagementNodeSyncRecord m : delta.getNodes()) {
memento.addNode(m);
}
for (String id : delta.getRemovedNodeIds()) {
memento.deleteNode(id);
}
switch (delta.getMasterChange()) {
case NO_CHANGE:
break; // no-op
case SET_MASTER:
memento.setMasterNodeId(checkNotNull(delta.getNewMasterOrNull()));
break;
case CLEAR_MASTER:
memento.setMasterNodeId(null);
break; // no-op
default:
throw new IllegalStateException("Unknown state for master-change: "+delta.getMasterChange());
}
}
}