Source code

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.javabridge;
020
021import org.apache.reef.annotations.audience.Interop;
022import org.apache.reef.annotations.audience.Private;
023import org.apache.reef.driver.context.ActiveContext;
024import org.apache.reef.driver.context.ContextBase;
025import org.apache.reef.driver.context.FailedContext;
026import org.apache.reef.driver.evaluator.EvaluatorDescriptor;
027import org.apache.reef.util.Optional;
028
029import java.util.logging.Level;
030import java.util.logging.Logger;
031
032/**
033 * The Java-CLR bridge object for {@link org.apache.reef.driver.context.FailedContext}.
034 */
035@Private
036@Interop(
037    CppFiles = { "Clr2JavaImpl.h", "FailedContextClr2Java.cpp" },
038    CsFiles = { "IFailedContextClr2Java.cs", "FailedContext.cs" })
039public final class FailedContextBridge extends NativeBridge implements ContextBase {
040
041  private static final Logger LOG = Logger.getLogger(FailedContextBridge.class.getName());
042
043  private final ActiveContextBridge parentContext;
044  private final EvaluatorDescriptor evaluatorDescriptor;
045  private final String evaluatorId;
046  private final String contextId;
047  private final String parentContextId;
048  private final FailedContext jfailedContext;
049
050  public FailedContextBridge(final FailedContext failedContext, final ActiveContextBridgeFactory factory) {
051    jfailedContext = failedContext;
052    evaluatorDescriptor = failedContext.getEvaluatorDescriptor();
053    evaluatorId = failedContext.getEvaluatorId();
054    contextId = failedContext.getId();
055    if (failedContext.getParentContext().isPresent()) {
056      final ActiveContext parent = failedContext.getParentContext().get();
057      this.parentContextId = parent.getId();
058      this.parentContext = factory.getActiveContextBridge(parent);
059    } else {
060      this.parentContextId = null;
061      this.parentContext = null;
062    }
063
064  }
065
066  @Override
067  public void close() throws Exception {
068  }
069
070  @Override
071  public String getId() {
072    return contextId;
073  }
074
075  @Override
076  public String getEvaluatorId() {
077    return evaluatorId;
078  }
079
080  @Override
081  public Optional<String> getParentId() {
082    return Optional.ofNullable(this.parentContextId);
083  }
084
085  @Override
086  public EvaluatorDescriptor getEvaluatorDescriptor() {
087    return evaluatorDescriptor;
088  }
089
090  /**
091   * Used by InterOp code.
092   */
093  public String getParentIdString() {
094    return this.parentContextId;
095  }
096
097  /**
098   * @return the parent {@link ActiveContextBridge}.
099   */
100  public ActiveContextBridge getParentContext() {
101    return parentContext;
102  }
103
104  public String getEvaluatorDescriptorString() {
105    final String descriptorString = Utilities.getEvaluatorDescriptorString(evaluatorDescriptor);
106    LOG.log(Level.INFO, "Failed Context - serialized evaluator descriptor: " + descriptorString);
107    return descriptorString;
108  }
109}