/*
* 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.cache.impl.operation;
import com.hazelcast.cache.impl.CacheClearResponse;
import com.hazelcast.cache.impl.CacheDataSerializerHook;
import com.hazelcast.cache.impl.ICacheRecordStore;
import com.hazelcast.cache.impl.ICacheService;
import com.hazelcast.nio.serialization.DefaultData;
import com.hazelcast.spi.BackupAwareOperation;
import com.hazelcast.spi.Operation;
import javax.cache.CacheException;
/**
* Cache Clear will clear all internal cache data without sending any event
*/
public class CacheClearOperation
extends PartitionWideCacheOperation
implements BackupAwareOperation {
private int completionId;
private transient ICacheRecordStore cache;
public CacheClearOperation() {
}
public CacheClearOperation(String name, int completionId) {
super(name);
this.completionId = completionId;
}
@Override
public void beforeRun() throws Exception {
ICacheService service = getService();
cache = service.getCacheRecordStore(name, getPartitionId());
}
@Override
public void run() {
if (cache == null) {
return;
}
try {
cache.clear();
response = new CacheClearResponse(Boolean.TRUE);
} catch (CacheException e) {
response = new CacheClearResponse(e);
}
cache.publishCompletedEvent(name, completionId, new DefaultData(), 1);
}
@Override
public int getId() {
return CacheDataSerializerHook.CLEAR;
}
@Override
public boolean shouldBackup() {
return true;
}
@Override
public final int getSyncBackupCount() {
return cache != null ? cache.getConfig().getBackupCount() : 0;
}
@Override
public final int getAsyncBackupCount() {
return cache != null ? cache.getConfig().getAsyncBackupCount() : 0;
}
@Override
public Operation getBackupOperation() {
return new CacheClearBackupOperation(name);
}
}