| <!DOCTYPE HTML> |
| <html lang="en"> |
| <head> |
| <!-- Generated by javadoc (17) --> |
| <title>Source code</title> |
| <meta name="viewport" content="width=device-width, initial-scale=1"> |
| <meta name="description" content="source: package: org.apache.hadoop.hbase.mapreduce, class: KeyOnlyCellComparable"> |
| <meta name="generator" content="javadoc/SourceToHTMLConverter"> |
| <link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> |
| </head> |
| <body class="source-page"> |
| <main role="main"> |
| <div class="source-container"> |
| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.mapreduce;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import java.io.ByteArrayInputStream;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.io.DataInput;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.io.DataInputStream;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.io.DataOutput;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.io.IOException;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.hbase.CellComparator;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.ExtendedCell;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.KeyValue;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.PrivateCellUtil;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.io.WritableComparable;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.io.WritableComparator;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">032</span><span id="line-32"></span> |
| <span class="source-line-no">033</span><span id="line-33">@InterfaceAudience.Private</span> |
| <span class="source-line-no">034</span><span id="line-34">public class KeyOnlyCellComparable implements WritableComparable<KeyOnlyCellComparable> {</span> |
| <span class="source-line-no">035</span><span id="line-35"></span> |
| <span class="source-line-no">036</span><span id="line-36"> static {</span> |
| <span class="source-line-no">037</span><span id="line-37"> WritableComparator.define(KeyOnlyCellComparable.class, new KeyOnlyCellComparator());</span> |
| <span class="source-line-no">038</span><span id="line-38"> }</span> |
| <span class="source-line-no">039</span><span id="line-39"></span> |
| <span class="source-line-no">040</span><span id="line-40"> private ExtendedCell cell = null;</span> |
| <span class="source-line-no">041</span><span id="line-41"></span> |
| <span class="source-line-no">042</span><span id="line-42"> public KeyOnlyCellComparable() {</span> |
| <span class="source-line-no">043</span><span id="line-43"> }</span> |
| <span class="source-line-no">044</span><span id="line-44"></span> |
| <span class="source-line-no">045</span><span id="line-45"> public KeyOnlyCellComparable(ExtendedCell cell) {</span> |
| <span class="source-line-no">046</span><span id="line-46"> this.cell = cell;</span> |
| <span class="source-line-no">047</span><span id="line-47"> }</span> |
| <span class="source-line-no">048</span><span id="line-48"></span> |
| <span class="source-line-no">049</span><span id="line-49"> public ExtendedCell getCell() {</span> |
| <span class="source-line-no">050</span><span id="line-50"> return cell;</span> |
| <span class="source-line-no">051</span><span id="line-51"> }</span> |
| <span class="source-line-no">052</span><span id="line-52"></span> |
| <span class="source-line-no">053</span><span id="line-53"> @Override</span> |
| <span class="source-line-no">054</span><span id="line-54"> @edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "EQ_COMPARETO_USE_OBJECT_EQUALS",</span> |
| <span class="source-line-no">055</span><span id="line-55"> justification = "This is wrong, yes, but we should be purging Writables, not fixing them")</span> |
| <span class="source-line-no">056</span><span id="line-56"> public int compareTo(KeyOnlyCellComparable o) {</span> |
| <span class="source-line-no">057</span><span id="line-57"> return CellComparator.getInstance().compare(cell, o.cell);</span> |
| <span class="source-line-no">058</span><span id="line-58"> }</span> |
| <span class="source-line-no">059</span><span id="line-59"></span> |
| <span class="source-line-no">060</span><span id="line-60"> @Override</span> |
| <span class="source-line-no">061</span><span id="line-61"> public void write(DataOutput out) throws IOException {</span> |
| <span class="source-line-no">062</span><span id="line-62"> int keyLen = PrivateCellUtil.estimatedSerializedSizeOfKey(cell);</span> |
| <span class="source-line-no">063</span><span id="line-63"> int valueLen = 0; // We avoid writing value here. So just serialize as if an empty value.</span> |
| <span class="source-line-no">064</span><span id="line-64"> out.writeInt(keyLen + valueLen + KeyValue.KEYVALUE_INFRASTRUCTURE_SIZE);</span> |
| <span class="source-line-no">065</span><span id="line-65"> out.writeInt(keyLen);</span> |
| <span class="source-line-no">066</span><span id="line-66"> out.writeInt(valueLen);</span> |
| <span class="source-line-no">067</span><span id="line-67"> PrivateCellUtil.writeFlatKey(cell, out);</span> |
| <span class="source-line-no">068</span><span id="line-68"> out.writeLong(cell.getSequenceId());</span> |
| <span class="source-line-no">069</span><span id="line-69"> }</span> |
| <span class="source-line-no">070</span><span id="line-70"></span> |
| <span class="source-line-no">071</span><span id="line-71"> @Override</span> |
| <span class="source-line-no">072</span><span id="line-72"> public void readFields(DataInput in) throws IOException {</span> |
| <span class="source-line-no">073</span><span id="line-73"> cell = KeyValue.create(in);</span> |
| <span class="source-line-no">074</span><span id="line-74"> long seqId = in.readLong();</span> |
| <span class="source-line-no">075</span><span id="line-75"> cell.setSequenceId(seqId);</span> |
| <span class="source-line-no">076</span><span id="line-76"> }</span> |
| <span class="source-line-no">077</span><span id="line-77"></span> |
| <span class="source-line-no">078</span><span id="line-78"> public static class KeyOnlyCellComparator extends WritableComparator {</span> |
| <span class="source-line-no">079</span><span id="line-79"></span> |
| <span class="source-line-no">080</span><span id="line-80"> @Override</span> |
| <span class="source-line-no">081</span><span id="line-81"> public int compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) {</span> |
| <span class="source-line-no">082</span><span id="line-82"> try (DataInputStream d1 = new DataInputStream(new ByteArrayInputStream(b1, s1, l1));</span> |
| <span class="source-line-no">083</span><span id="line-83"> DataInputStream d2 = new DataInputStream(new ByteArrayInputStream(b2, s2, l2))) {</span> |
| <span class="source-line-no">084</span><span id="line-84"> KeyOnlyCellComparable kv1 = new KeyOnlyCellComparable();</span> |
| <span class="source-line-no">085</span><span id="line-85"> kv1.readFields(d1);</span> |
| <span class="source-line-no">086</span><span id="line-86"> KeyOnlyCellComparable kv2 = new KeyOnlyCellComparable();</span> |
| <span class="source-line-no">087</span><span id="line-87"> kv2.readFields(d2);</span> |
| <span class="source-line-no">088</span><span id="line-88"> return compare(kv1, kv2);</span> |
| <span class="source-line-no">089</span><span id="line-89"> } catch (IOException e) {</span> |
| <span class="source-line-no">090</span><span id="line-90"> throw new RuntimeException(e);</span> |
| <span class="source-line-no">091</span><span id="line-91"> }</span> |
| <span class="source-line-no">092</span><span id="line-92"> }</span> |
| <span class="source-line-no">093</span><span id="line-93"> }</span> |
| <span class="source-line-no">094</span><span id="line-94">}</span> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
