/*
* 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.map.impl.operation;
import com.hazelcast.map.impl.RecordStore;
import com.hazelcast.spi.BackupAwareOperation;
import com.hazelcast.spi.Operation;
import com.hazelcast.spi.PartitionAwareOperation;
import static com.hazelcast.map.impl.MapService.SERVICE_NAME;
public class ClearOperation extends AbstractMapOperation implements BackupAwareOperation, PartitionAwareOperation {
boolean shouldBackup = true;
private int numberOfClearedEntries;
public ClearOperation() {
}
public ClearOperation(String name) {
super(name);
}
public void run() {
// near-cache clear will be called multiple times by each clear operation,
// but it's still preferred to send a separate operation to clear near-cache.
mapService.getMapServiceContext().getNearCacheProvider().clearNearCache(name);
final RecordStore recordStore = mapService.getMapServiceContext().getExistingRecordStore(getPartitionId(), name);
//if there is no recordStore, then there is nothing to clear.
if (recordStore == null) {
shouldBackup = false;
return;
}
numberOfClearedEntries = recordStore.clear();
}
public boolean shouldBackup() {
return shouldBackup;
}
public int getSyncBackupCount() {
return mapService.getMapServiceContext().getMapContainer(name).getBackupCount();
}
public int getAsyncBackupCount() {
return mapService.getMapServiceContext().getMapContainer(name).getAsyncBackupCount();
}
@Override
public boolean returnsResponse() {
return true;
}
@Override
public Object getResponse() {
return numberOfClearedEntries;
}
public Operation getBackupOperation() {
ClearBackupOperation clearBackupOperation = new ClearBackupOperation(name);
clearBackupOperation.setServiceName(SERVICE_NAME);
return clearBackupOperation;
}
@Override
public String toString() {
return "ClearOperation{"
+ '}';
}
}