001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.reef.runtime.common.evaluator.context.defaults;
020
021import org.apache.reef.annotations.audience.EvaluatorSide;
022import org.apache.reef.evaluator.context.ContextMessageHandler;
023import org.apache.reef.evaluator.context.parameters.ContextIdentifier;
024import org.apache.reef.tang.annotations.Parameter;
025
026import javax.inject.Inject;
027
028/**
029 * Default handler for messages sent by the driver: Crash the context.
030 */
031@EvaluatorSide
032public final class DefaultContextMessageHandler implements ContextMessageHandler {
033
034  private final String contextID;
035
036  @Inject
037  DefaultContextMessageHandler(@Parameter(ContextIdentifier.class) final String contextID) {
038    this.contextID = contextID;
039  }
040
041  @Override
042  public void onNext(final byte[] message) {
043    throw new IllegalStateException("No message handlers given for context " + this.contextID);
044  }
045}