/*
 * 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.phoenix.hbase.index.write;

import java.io.IOException;
import org.apache.hadoop.hbase.Stoppable;
import org.apache.hadoop.hbase.client.Mutation;
import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment;
import org.apache.phoenix.hbase.index.builder.FatalIndexBuildingFailureException;
import org.apache.phoenix.hbase.index.table.HTableInterfaceReference;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import org.apache.phoenix.thirdparty.com.google.common.collect.Multimap;

/**
 * Naive failure policy - kills the server on which it resides
 */
public class KillServerOnFailurePolicy implements IndexFailurePolicy {

  private static final Logger LOGGER = LoggerFactory.getLogger(KillServerOnFailurePolicy.class);
  private Stoppable stoppable;

  @Override
  public void setup(Stoppable parent, RegionCoprocessorEnvironment env) {
    setup(parent);
  }

  public void setup(Stoppable parent) {
    this.stoppable = parent;
  }

  @Override
  public void stop(String why) {
    // noop
  }

  @Override
  public boolean isStopped() {
    return this.stoppable.isStopped();
  }

  @Override
  public void handleFailure(Multimap<HTableInterfaceReference, Mutation> attempted, Exception cause)
    throws IOException {
    // cleanup resources
    this.stop("Killing ourselves because of an error:" + cause);
    // notify the regionserver of the failure
    String msg =
      "Could not update the index table, killing server region because couldn't write to an index table";
    LOGGER.error(msg, cause);
    throw new FatalIndexBuildingFailureException(msg, cause);
  }

}
