com.hazelcast.queue.RemoveOperation Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2013, 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.queue;
import com.hazelcast.core.ItemEventType;
import com.hazelcast.nio.IOUtil;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.spi.Notifier;
import com.hazelcast.spi.Operation;
import com.hazelcast.spi.WaitNotifyKey;
import java.io.IOException;
public class RemoveOperation extends QueueBackupAwareOperation implements Notifier {
private Data data;
private long itemId = -1;
public RemoveOperation() {
}
public RemoveOperation(String name, Data data) {
super(name);
this.data = data;
}
@Override
public void run() throws Exception {
QueueContainer container = getOrCreateContainer();
itemId = container.remove(data);
response = itemId != -1;
}
@Override
public void afterRun() throws Exception {
getQueueService().getLocalQueueStatsImpl(name).incrementOtherOperations();
if (itemId != -1) {
publishEvent(ItemEventType.REMOVED, data);
}
}
@Override
public boolean shouldBackup() {
return Boolean.TRUE.equals(response);
}
@Override
public Operation getBackupOperation() {
return new RemoveBackupOperation(name, itemId);
}
@Override
protected void writeInternal(ObjectDataOutput out) throws IOException {
super.writeInternal(out);
data.writeData(out);
}
@Override
protected void readInternal(ObjectDataInput in) throws IOException {
super.readInternal(in);
data = IOUtil.readData(in);
}
@Override
public boolean shouldNotify() {
return itemId != -1;
}
@Override
public WaitNotifyKey getNotifiedKey() {
return getOrCreateContainer().getOfferWaitNotifyKey();
}
@Override
public int getId() {
return QueueDataSerializerHook.REMOVE;
}
}