service/cli/HandleIdentifier.java

0001 /**
0002  * Licensed to the Apache Software Foundation (ASF) under one
0003  * or more contributor license agreements.  See the NOTICE file
0004  * distributed with this work for additional information
0005  * regarding copyright ownership.  The ASF licenses this file
0006  * to you under the Apache License, Version 2.0 (the
0007  * "License"); you may not use this file except in compliance
0008  * with the License.  You may obtain a copy of the License at
0009  *
0010  *     http://www.apache.org/licenses/LICENSE-2.0
0011  *
0012  * Unless required by applicable law or agreed to in writing, software
0013  * distributed under the License is distributed on an "AS IS" BASIS,
0014  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
0015  * See the License for the specific language governing permissions and
0016  * limitations under the License.
0017  */
0018
0019 package org.apache.hive.service.cli;
0020
0021 import java.nio.ByteBuffer;
0022 import java.util.UUID;
0023
0024 import org.apache.hive.service.rpc.thrift.THandleIdentifier;
0025
0026 /**
0027  * HandleIdentifier.
0028  *
0029  */
0030 public class HandleIdentifier {
0031   private final UUID publicId;
0032   private final UUID secretId;
0033
0034   public HandleIdentifier() {
0035     publicId = UUID.randomUUID();
0036     secretId = UUID.randomUUID();
0037   }
0038
0039   public HandleIdentifier(UUID publicId, UUID secretId) {
0040     this.publicId = publicId;
0041     this.secretId = secretId;
0042   }
0043
0044   public HandleIdentifier(THandleIdentifier tHandleId) {
0045     ByteBuffer bb = ByteBuffer.wrap(tHandleId.getGuid());
0046     this.publicId = new UUID(bb.getLong(), bb.getLong());
0047     bb = ByteBuffer.wrap(tHandleId.getSecret());
0048     this.secretId = new UUID(bb.getLong(), bb.getLong());
0049   }
0050
0051   public UUID getPublicId() {
0052     return publicId;
0053   }
0054
0055   public UUID getSecretId() {
0056     return secretId;
0057   }
0058
0059   public THandleIdentifier toTHandleIdentifier() {
0060     byte[] guid = new byte[16];
0061     byte[] secret = new byte[16];
0062     ByteBuffer guidBB = ByteBuffer.wrap(guid);
0063     ByteBuffer secretBB = ByteBuffer.wrap(secret);
0064     guidBB.putLong(publicId.getMostSignificantBits());
0065     guidBB.putLong(publicId.getLeastSignificantBits());
0066     secretBB.putLong(secretId.getMostSignificantBits());
0067     secretBB.putLong(secretId.getLeastSignificantBits());
0068     return new THandleIdentifier(ByteBuffer.wrap(guid), ByteBuffer.wrap(secret));
0069   }
0070
0071   @Override
0072   public int hashCode() {
0073     final int prime = 31;
0074     int result = 1;
0075     result = prime * result + ((publicId == null) ? 0 : publicId.hashCode());
0076     result = prime * result + ((secretId == null) ? 0 : secretId.hashCode());
0077     return result;
0078   }
0079
0080   @Override
0081   public boolean equals(Object obj) {
0082     if (this == obj) {
0083       return true;
0084     }
0085     if (obj == null) {
0086       return false;
0087     }
0088     if (!(obj instanceof HandleIdentifier)) {
0089       return false;
0090     }
0091     HandleIdentifier other = (HandleIdentifier) obj;
0092     if (publicId == null) {
0093       if (other.publicId != null) {
0094         return false;
0095       }
0096     } else if (!publicId.equals(other.publicId)) {
0097       return false;
0098     }
0099     if (secretId == null) {
0100       if (other.secretId != null) {
0101         return false;
0102       }
0103     } else if (!secretId.equals(other.secretId)) {
0104       return false;
0105     }
0106     return true;
0107   }
0108
0109   @Override
0110   public String toString() {
0111     return publicId.toString();
0112   }
0113 }