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.hdinsight.client.yarnrest;
020
021import org.codehaus.jackson.annotate.JsonIgnoreProperties;
022import org.codehaus.jackson.annotate.JsonProperty;
023import org.codehaus.jackson.map.ObjectMapper;
024
025import java.io.IOException;
026import java.io.StringWriter;
027
028/**
029 * Represents the response to an application ID request to
030 * the YARN Resource Manager via the YARN REST API.
031 * For detailed information, please refer to
032 * https://hadoop.apache.org/docs/r2.6.0/hadoop-yarn/hadoop-yarn-site/ResourceManagerRest.html
033 */
034@JsonIgnoreProperties(ignoreUnknown = true)
035public final class ApplicationID {
036
037  private static final String APPLICATION_ID = "applicationId";
038  private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
039  private String applicationId;
040  private Resource resource;
041
042  @JsonProperty(Constants.APPLICATION_ID)
043  public String getApplicationId() {
044    return applicationId;
045  }
046
047  public void setApplicationId(final String applicationId) {
048    this.applicationId = applicationId;
049  }
050
051  @JsonProperty(Constants.MAXIMUM_RESOURCE_CAPABILITY)
052  public Resource getResource() {
053    return resource;
054  }
055
056  public void setResource(final Resource resource) {
057    this.resource = resource;
058  }
059
060  @Override
061  public String toString() {
062    final StringWriter writer = new StringWriter();
063    final String objectString;
064    try {
065      OBJECT_MAPPER.writeValue(writer, this);
066      objectString = writer.toString();
067    } catch (final IOException e) {
068      throw new RuntimeException("Exception while serializing ApplicationID: " + e);
069    }
070
071    return APPLICATION_ID + objectString;
072  }
073}