/*
* 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.operation;
import com.hazelcast.map.MapService;
import com.hazelcast.map.PartitionContainer;
import com.hazelcast.map.RecordStore;
import com.hazelcast.map.mapstore.MapDataStore;
import com.hazelcast.map.mapstore.writebehind.WriteBehindStore;
import com.hazelcast.nio.Address;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.spi.AbstractOperation;
import com.hazelcast.spi.NodeEngine;
import com.hazelcast.spi.PartitionAwareOperation;
import com.hazelcast.util.Clock;
import java.io.IOException;
import java.util.concurrent.ConcurrentMap;
/**
* Clear expired records.
*/
public class ClearExpiredOperation extends AbstractOperation implements PartitionAwareOperation {
private int expirationPercentage;
public ClearExpiredOperation(int expirationPercentage) {
this.expirationPercentage = expirationPercentage;
}
@Override
public void run() throws Exception {
final long now = Clock.currentTimeMillis();
final MapService mapService = getService();
final PartitionContainer partitionContainer = mapService.getMapServiceContext().getPartitionContainer(getPartitionId());
final ConcurrentMap<String, RecordStore> recordStores = partitionContainer.getMaps();
final boolean isOwnerPartition = isOwner();
for (final RecordStore recordStore : recordStores.values()) {
if (recordStore.size() > 0 && recordStore.isExpirable()) {
recordStore.evictExpiredEntries(expirationPercentage, isOwnerPartition);
}
cleanupEvictionStagingArea(recordStore, now);
}
}
private void cleanupEvictionStagingArea(RecordStore recordStore, long now) {
if (recordStore == null) {
return;
}
final MapDataStore<Data, Object> mapDataStore = recordStore.getMapDataStore();
if (mapDataStore instanceof WriteBehindStore) {
((WriteBehindStore) mapDataStore).cleanupStagingArea(now);
}
}
private boolean isOwner() {
final NodeEngine nodeEngine = getNodeEngine();
final Address owner = nodeEngine.getPartitionService().getPartitionOwner(getPartitionId());
return nodeEngine.getThisAddress().equals(owner);
}
@Override
public void afterRun() throws Exception {
final MapService mapService = getService();
final PartitionContainer partitionContainer = mapService.getMapServiceContext().getPartitionContainer(getPartitionId());
partitionContainer.setHasRunningCleanup(false);
partitionContainer.setLastCleanupTime(Clock.currentTimeMillis());
}
@Override
public boolean returnsResponse() {
return false;
}
@Override
protected void writeInternal(ObjectDataOutput out) throws IOException {
throw new UnsupportedOperationException();
}
@Override
protected void readInternal(ObjectDataInput in) throws IOException {
throw new UnsupportedOperationException();
}
@Override
public String toString() {
return "ClearExpiredOperation{}";
}
}