| /** |
| * 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.mob; |
| |
| import java.io.IOException; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.regionserver.DefaultStoreEngine; |
| import org.apache.hadoop.hbase.regionserver.HStore; |
| import org.apache.hadoop.hbase.util.ReflectionUtils; |
| import org.apache.yetus.audience.InterfaceAudience; |
| |
| /** |
| * MobStoreEngine creates the mob specific compactor, and store flusher. |
| */ |
| @InterfaceAudience.Private |
| public class MobStoreEngine extends DefaultStoreEngine { |
| public final static String MOB_COMPACTOR_CLASS_KEY = "hbase.hstore.mobengine.compactor.class"; |
| @Override |
| protected void createStoreFlusher(Configuration conf, HStore store) throws IOException { |
| // When using MOB, we use DefaultMobStoreFlusher always |
| // Just use the compactor and compaction policy as that in DefaultStoreEngine. We can have MOB |
| // specific compactor and policy when that is implemented. |
| storeFlusher = new DefaultMobStoreFlusher(conf, store); |
| } |
| |
| /** |
| * Creates the DefaultMobCompactor. |
| */ |
| @Override |
| protected void createCompactor(Configuration conf, HStore store) throws IOException { |
| String className = |
| conf.get(MOB_COMPACTOR_CLASS_KEY, DefaultMobStoreCompactor.class.getName()); |
| try { |
| compactor = ReflectionUtils.instantiateWithCustomCtor(className, |
| new Class[] { Configuration.class, HStore.class }, new Object[] { conf, store }); |
| } catch (RuntimeException e) { |
| throw new IOException("Unable to load configured compactor '" + className + "'", e); |
| } |
| } |
| } |