/*
* 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.CacheDataSerializerHook;
import com.hazelcast.cache.impl.CacheService;
import com.hazelcast.cache.impl.ICacheRecordStore;
import com.hazelcast.spi.ReadonlyOperation;
/**
* This operation implementation is for calculating the cluster size of a named cache. Result of all partitions
* will be summed up to find the cluster size.
*/
public class CacheSizeOperation
extends PartitionWideCacheOperation
implements ReadonlyOperation {
public CacheSizeOperation() {
}
public CacheSizeOperation(String name) {
super(name);
}
@Override
public void run()
throws Exception {
CacheService service = getService();
ICacheRecordStore cache = service.getCacheRecordStore(name, getPartitionId());
response = cache != null ? cache.size() : 0;
}
@Override
public int getId() {
return CacheDataSerializerHook.SIZE;
}
}