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.runtime.common.driver.resourcemanager;
020
021import org.apache.reef.runtime.common.driver.evaluator.pojos.State;
022import org.apache.reef.util.BuilderUtils;
023import org.apache.reef.util.Optional;
024
025/**
026 * Default POJO implementation of ResourceStatusEvent.
027 * Use newBuilder to construct an instance.
028 */
029public final class ResourceStatusEventImpl implements ResourceStatusEvent {
030  private final String identifier;
031  private final State state;
032  private final Optional<String> diagnostics;
033  private final Optional<Integer> exitCode;
034  private final String runtimeName;
035
036  private ResourceStatusEventImpl(final Builder builder) {
037    this.identifier = BuilderUtils.notNull(builder.identifier);
038    this.state = BuilderUtils.notNull(builder.state);
039    this.diagnostics = Optional.ofNullable(builder.diagnostics);
040    this.exitCode = Optional.ofNullable(builder.exitCode);
041    this.runtimeName = BuilderUtils.notNull(builder.identifier);
042  }
043
044  @Override
045  public String getIdentifier() {
046    return identifier;
047  }
048
049  @Override
050  public String getRuntimeName() {
051    return runtimeName;
052  }
053
054  @Override
055  public State getState() {
056    return state;
057  }
058
059  @Override
060  public Optional<String> getDiagnostics() {
061    return diagnostics;
062  }
063
064  @Override
065  public Optional<Integer> getExitCode() {
066    return exitCode;
067  }
068
069  public static Builder newBuilder() {
070    return new Builder();
071  }
072
073  /**
074   * Builder used to create ResourceStatusEvent instances.
075   */
076  public static final class Builder implements org.apache.reef.util.Builder<ResourceStatusEvent> {
077
078    private String identifier;
079    private String runtimeName;
080    private State state;
081    private String diagnostics;
082    private Integer exitCode;
083
084    /**
085     * @see ResourceStatusEvent#getIdentifier()
086     */
087    public Builder setIdentifier(final String identifier) {
088      this.identifier = identifier;
089      return this;
090    }
091
092    /**
093     * @see ResourceStatusEvent#getIdentifier()
094     */
095    public Builder setRuntimeName(final String runtimeName) {
096      this.runtimeName = runtimeName;
097      return this;
098    }
099    /**
100     * @see ResourceStatusEvent#getState()
101     */
102    public Builder setState(final State state) {
103      this.state = state;
104      return this;
105    }
106
107    /**
108     * @see ResourceStatusEvent#getDiagnostics()
109     */
110    public Builder setDiagnostics(final String diagnostics) {
111      this.diagnostics = diagnostics;
112      return this;
113    }
114
115    /**
116     * @see ResourceStatusEvent#getExitCode()
117     */
118    public Builder setExitCode(final int exitCode) {
119      this.exitCode = exitCode;
120      return this;
121    }
122
123    @Override
124    public ResourceStatusEvent build() {
125      return new ResourceStatusEventImpl(this);
126    }
127  }
128}