/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.hadoop.hbase.regionserver.compactions;
import java.io.IOException;
import java.util.ArrayList;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.regionserver.StoreConfigInformation;
import org.apache.hadoop.hbase.regionserver.StoreFile;
/**
* Test Policy to compact everything every time.
*/
public class EverythingPolicy extends RatioBasedCompactionPolicy {
/**
* Constructor.
*
* @param conf The Conf.
* @param storeConfigInfo Info about the store.
*/
public EverythingPolicy(final Configuration conf,
final StoreConfigInformation storeConfigInfo) {
super(conf, storeConfigInfo);
}
@Override
final ArrayList<StoreFile> applyCompactionPolicy(final ArrayList<StoreFile> candidates,
final boolean mayUseOffPeak, final boolean mayBeStuck) throws IOException {
if (candidates.size() < comConf.getMinFilesToCompact()) {
return new ArrayList<StoreFile>(0);
}
return new ArrayList<StoreFile>(candidates);
}
}