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, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018 package org.apache.hadoop.mapreduce; 019 020 import java.io.DataInput; 021 import java.io.DataOutput; 022 import java.io.IOException; 023 024 import org.apache.hadoop.classification.InterfaceAudience; 025 import org.apache.hadoop.classification.InterfaceStability; 026 import org.apache.hadoop.io.Text; 027 import org.apache.hadoop.io.Writable; 028 import org.apache.hadoop.io.WritableUtils; 029 030 /** 031 * Class to encapsulate Queue ACLs for a particular 032 * user. 033 * 034 */ 035 @InterfaceAudience.Public 036 @InterfaceStability.Evolving 037 public class QueueAclsInfo implements Writable { 038 039 private String queueName; 040 private String[] operations; 041 /** 042 * Default constructor for QueueAclsInfo. 043 * 044 */ 045 public QueueAclsInfo() { 046 047 } 048 049 /** 050 * Construct a new QueueAclsInfo object using the queue name and the 051 * queue operations array 052 * 053 * @param queueName Name of the job queue 054 * @param operations 055 */ 056 public QueueAclsInfo(String queueName, String[] operations) { 057 this.queueName = queueName; 058 this.operations = operations; 059 } 060 061 /** 062 * Get queue name. 063 * 064 * @return name 065 */ 066 public String getQueueName() { 067 return queueName; 068 } 069 070 protected void setQueueName(String queueName) { 071 this.queueName = queueName; 072 } 073 074 /** 075 * Get opearations allowed on queue. 076 * 077 * @return array of String 078 */ 079 public String[] getOperations() { 080 return operations; 081 } 082 083 @Override 084 public void readFields(DataInput in) throws IOException { 085 queueName = Text.readString(in); 086 operations = WritableUtils.readStringArray(in); 087 } 088 089 @Override 090 public void write(DataOutput out) throws IOException { 091 Text.writeString(out, queueName); 092 WritableUtils.writeStringArray(out, operations); 093 } 094 }