com.hazelcast.scheduledexecutor.impl.operations.MergeOperation Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2018, Hazelcast, Inc. All Rights Reserved.
*
* Licensed 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 com.hazelcast.scheduledexecutor.impl.operations;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.scheduledexecutor.impl.ScheduledExecutorContainer;
import com.hazelcast.scheduledexecutor.impl.ScheduledTaskDescriptor;
import com.hazelcast.spi.Operation;
import com.hazelcast.spi.merge.SplitBrainMergePolicy;
import com.hazelcast.spi.merge.SplitBrainMergeTypes.ScheduledExecutorMergeTypes;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import static com.hazelcast.scheduledexecutor.impl.ScheduledExecutorDataSerializerHook.MERGE;
public class MergeOperation
extends AbstractBackupAwareSchedulerOperation {
private List mergingEntries;
private SplitBrainMergePolicy mergePolicy;
private transient List mergedTasks;
public MergeOperation() {
super();
}
public MergeOperation(String name, List mergingEntries,
SplitBrainMergePolicy mergePolicy) {
super(name);
this.mergingEntries = mergingEntries;
this.mergePolicy = mergePolicy;
}
@Override
public boolean shouldBackup() {
return super.shouldBackup() && mergedTasks != null && !mergedTasks.isEmpty();
}
@Override
public void run()
throws Exception {
ScheduledExecutorContainer container = getContainer();
mergedTasks = new ArrayList();
for (ScheduledExecutorMergeTypes mergingEntry : mergingEntries) {
ScheduledTaskDescriptor merged = container.merge(mergingEntry, mergePolicy);
if (merged != null) {
mergedTasks.add(merged);
}
}
container.promoteSuspended();
}
@Override
public int getId() {
return MERGE;
}
@Override
public Operation getBackupOperation() {
return new MergeBackupOperation(getSchedulerName(), mergedTasks);
}
@Override
protected void writeInternal(ObjectDataOutput out)
throws IOException {
super.writeInternal(out);
out.writeObject(mergePolicy);
out.writeInt(mergingEntries.size());
for (ScheduledExecutorMergeTypes mergingEntry : mergingEntries) {
out.writeObject(mergingEntry);
}
}
@Override
protected void readInternal(ObjectDataInput in)
throws IOException {
super.readInternal(in);
mergePolicy = in.readObject();
int size = in.readInt();
mergingEntries = new ArrayList(size);
for (int i = 0; i < size; i++) {
ScheduledExecutorMergeTypes mergingEntry = in.readObject();
mergingEntries.add(mergingEntry);
}
}
}