/*
    * 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;
  
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.UUID;
  
  import org.apache.hadoop.hbase.classification.InterfaceAudience;
  import org.apache.hadoop.hbase.classification.InterfaceStability;
  import org.apache.hadoop.hbase.HBaseInterfaceAudience;
  import org.apache.hadoop.hbase.client.Durability;
  import org.apache.hadoop.hbase.regionserver.wal.WALEdit;
  
  import com.google.protobuf.Message;
  
  /**
   * Base class for RowProcessor with some default implementations.
   */
  @InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.COPROC)
  @InterfaceStability.Evolving
  public abstract class BaseRowProcessor<S extends Message,T extends Message> 
  implements RowProcessor<S,T> {
  
    @Override
    public void preProcess(HRegion region, WALEdit walEdit) throws IOException {
    }
  
    @Override
    public void preBatchMutate(HRegion region, WALEdit walEdit) throws IOException {
    }
  
    @Override
    public void postBatchMutate(HRegion region) throws IOException {
    }
  
    @Override
    public void postProcess(HRegion region, WALEdit walEdit, boolean success) throws IOException {
    }
  
    @Override
    public List<UUID> getClusterIds() {
      return new ArrayList<UUID>();
    }
  
    @Override
    public String getName() {
      return this.getClass().getSimpleName().toLowerCase();
    }
  
    @Override
    public Durability useDurability() {
      return Durability.USE_DEFAULT;
    }
  }