| /** |
| * 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.tez.common; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| |
| import org.apache.hadoop.io.Writable; |
| import org.apache.hadoop.security.Credentials; |
| import org.apache.tez.runtime.api.impl.TaskSpec; |
| |
| import com.google.common.collect.Maps; |
| |
| public class ContainerTask implements Writable { |
| |
| TaskSpec taskSpec; |
| boolean shouldDie; |
| private Map<String, TezLocalResource> additionalResources; |
| private Credentials credentials; |
| private boolean credentialsChanged; |
| |
| public ContainerTask() { |
| } |
| |
| public ContainerTask(TaskSpec taskSpec, boolean shouldDie, |
| Map<String, TezLocalResource> additionalResources, Credentials credentials, boolean credentialsChanged) { |
| this.taskSpec = taskSpec; |
| this.shouldDie = shouldDie; |
| this.additionalResources = additionalResources; |
| this.credentials = credentials; |
| this.credentialsChanged = credentialsChanged; |
| } |
| |
| public TaskSpec getTaskSpec() { |
| return taskSpec; |
| } |
| |
| public boolean shouldDie() { |
| return shouldDie; |
| } |
| |
| public Map<String, TezLocalResource> getAdditionalResources() { |
| return this.additionalResources; |
| } |
| |
| public Credentials getCredentials() { |
| return this.credentials; |
| } |
| |
| public boolean haveCredentialsChanged() { |
| return this.credentialsChanged; |
| } |
| |
| @Override |
| public void write(DataOutput out) throws IOException { |
| out.writeBoolean(shouldDie); |
| if (taskSpec != null) { |
| out.writeBoolean(true); |
| taskSpec.write(out); |
| } else { |
| out.writeBoolean(false); |
| } |
| if (additionalResources != null) { |
| out.writeInt(additionalResources.size()); |
| for (Entry<String, TezLocalResource> lrEntry : additionalResources.entrySet()) { |
| out.writeUTF(lrEntry.getKey()); |
| lrEntry.getValue().write(out); |
| } |
| } else { |
| out.writeInt(-1); |
| } |
| out.writeBoolean(credentialsChanged); |
| if (credentialsChanged) { |
| out.writeBoolean(credentials != null); |
| if (credentials != null) { |
| credentials.write(out); |
| } |
| } |
| } |
| |
| @Override |
| public void readFields(DataInput in) throws IOException { |
| shouldDie = in.readBoolean(); |
| boolean taskComing = in.readBoolean(); |
| if (taskComing) { |
| taskSpec = new TaskSpec(); |
| taskSpec.readFields(in); |
| } |
| int numAdditionalResources = in.readInt(); |
| additionalResources = Maps.newHashMap(); |
| if (numAdditionalResources != -1) { |
| for (int i = 0 ; i < numAdditionalResources ; i++) { |
| String resourceName = in.readUTF(); |
| TezLocalResource localResource = new TezLocalResource(); |
| localResource.readFields(in); |
| additionalResources.put(resourceName, localResource); |
| } |
| } |
| credentialsChanged = in.readBoolean(); |
| if (credentialsChanged) { |
| boolean hasCredentials = in.readBoolean(); |
| if (hasCredentials) { |
| credentials = new Credentials(); |
| credentials.readFields(in); |
| } |
| } |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder(); |
| sb.append("shouldDie: ").append(shouldDie); |
| sb.append(", TaskSpec: "); |
| if (taskSpec == null) { |
| sb.append("none"); |
| } else { |
| sb.append(taskSpec); |
| } |
| sb.append(", additionalResources: "); |
| if (additionalResources == null) { |
| sb.append("none"); |
| } else { |
| sb.append(additionalResources); |
| } |
| sb.append(", credentialsChanged: ").append(credentialsChanged); |
| sb.append(", credentials: "); |
| if (credentials == null) { |
| sb.append("none"); |
| } else { |
| sb.append("#tokens=").append(credentials.numberOfTokens()) |
| .append(", #secretKeys: ").append(credentials.numberOfSecretKeys()); |
| } |
| return sb.toString(); |
| } |
| |
| } |