| /** |
| * 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.hadoop.hdfs; |
| |
| import org.apache.commons.lang.builder.EqualsBuilder; |
| import org.apache.commons.lang.builder.HashCodeBuilder; |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.hdfs.protocol.ExtendedBlock; |
| |
| /** |
| * An immutable key which identifies a block. |
| */ |
| @InterfaceAudience.Private |
| final public class ExtendedBlockId { |
| /** |
| * The block ID for this block. |
| */ |
| private final long blockId; |
| |
| /** |
| * The block pool ID for this block. |
| */ |
| private final String bpId; |
| |
| public static ExtendedBlockId fromExtendedBlock(ExtendedBlock block) { |
| return new ExtendedBlockId(block.getBlockId(), block.getBlockPoolId()); |
| } |
| |
| public ExtendedBlockId(long blockId, String bpId) { |
| this.blockId = blockId; |
| this.bpId = bpId; |
| } |
| |
| public long getBlockId() { |
| return this.blockId; |
| } |
| |
| public String getBlockPoolId() { |
| return this.bpId; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if ((o == null) || (o.getClass() != this.getClass())) { |
| return false; |
| } |
| ExtendedBlockId other = (ExtendedBlockId)o; |
| return new EqualsBuilder(). |
| append(blockId, other.blockId). |
| append(bpId, other.bpId). |
| isEquals(); |
| } |
| |
| @Override |
| public int hashCode() { |
| return new HashCodeBuilder(). |
| append(this.blockId). |
| append(this.bpId). |
| toHashCode(); |
| } |
| |
| @Override |
| public String toString() { |
| return String.valueOf(blockId) + "_" + bpId; |
| } |
| } |