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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/08/02 19:51:59 UTC
[13/51] [partial] hbase-site git commit: Published site at
613d831429960348dc42c3bdb6ea5d31be15c81c.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/7cf6034b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketProtoUtils.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketProtoUtils.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketProtoUtils.html
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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html lang="en">
+<head>
+<title>Source code</title>
+<link rel="stylesheet" type="text/css" href="../../../../../../../../stylesheet.css" title="Style">
+</head>
+<body>
+<div class="sourceContainer">
+<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a>
+<span class="sourceLineNo">002</span> * Copyright The Apache Software Foundation<a name="line.2"></a>
+<span class="sourceLineNo">003</span> *<a name="line.3"></a>
+<span class="sourceLineNo">004</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.4"></a>
+<span class="sourceLineNo">005</span> * or more contributor license agreements. See the NOTICE file<a name="line.5"></a>
+<span class="sourceLineNo">006</span> * distributed with this work for additional information<a name="line.6"></a>
+<span class="sourceLineNo">007</span> * regarding copyright ownership. The ASF licenses this file<a name="line.7"></a>
+<span class="sourceLineNo">008</span> * to you under the Apache License, Version 2.0 (the<a name="line.8"></a>
+<span class="sourceLineNo">009</span> * "License"); you may not use this file except in compliance<a name="line.9"></a>
+<span class="sourceLineNo">010</span> * with the License. You may obtain a copy of the License at<a name="line.10"></a>
+<span class="sourceLineNo">011</span> *<a name="line.11"></a>
+<span class="sourceLineNo">012</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.12"></a>
+<span class="sourceLineNo">013</span> *<a name="line.13"></a>
+<span class="sourceLineNo">014</span> * Unless required by applicable law or agreed to in writing, software<a name="line.14"></a>
+<span class="sourceLineNo">015</span><a name="line.15"></a>
+<span class="sourceLineNo">016</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.16"></a>
+<span class="sourceLineNo">017</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.17"></a>
+<span class="sourceLineNo">018</span> * See the License for the specific language governing permissions and<a name="line.18"></a>
+<span class="sourceLineNo">019</span> * limitations under the License.<a name="line.19"></a>
+<span class="sourceLineNo">020</span> */<a name="line.20"></a>
+<span class="sourceLineNo">021</span>package org.apache.hadoop.hbase.io.hfile.bucket;<a name="line.21"></a>
+<span class="sourceLineNo">022</span><a name="line.22"></a>
+<span class="sourceLineNo">023</span>import java.io.IOException;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.util.Map;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.25"></a>
+<span class="sourceLineNo">026</span><a name="line.26"></a>
+<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.io.hfile.BlockCacheKey;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.io.hfile.BlockPriority;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.io.hfile.BlockType;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.io.hfile.CacheableDeserializerIdManager;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.io.hfile.HFileBlock;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.32"></a>
+<span class="sourceLineNo">033</span><a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.BucketCacheProtos;<a name="line.34"></a>
+<span class="sourceLineNo">035</span><a name="line.35"></a>
+<span class="sourceLineNo">036</span>@InterfaceAudience.Private<a name="line.36"></a>
+<span class="sourceLineNo">037</span>final class BucketProtoUtils {<a name="line.37"></a>
+<span class="sourceLineNo">038</span> private BucketProtoUtils() {<a name="line.38"></a>
+<span class="sourceLineNo">039</span><a name="line.39"></a>
+<span class="sourceLineNo">040</span> }<a name="line.40"></a>
+<span class="sourceLineNo">041</span><a name="line.41"></a>
+<span class="sourceLineNo">042</span> static BucketCacheProtos.BucketCacheEntry toPB(BucketCache cache) {<a name="line.42"></a>
+<span class="sourceLineNo">043</span> return BucketCacheProtos.BucketCacheEntry.newBuilder()<a name="line.43"></a>
+<span class="sourceLineNo">044</span> .setCacheCapacity(cache.getMaxSize())<a name="line.44"></a>
+<span class="sourceLineNo">045</span> .setIoClass(cache.ioEngine.getClass().getName())<a name="line.45"></a>
+<span class="sourceLineNo">046</span> .setMapClass(cache.backingMap.getClass().getName())<a name="line.46"></a>
+<span class="sourceLineNo">047</span> .putAllDeserializers(CacheableDeserializerIdManager.save())<a name="line.47"></a>
+<span class="sourceLineNo">048</span> .setBackingMap(BucketProtoUtils.toPB(cache.backingMap))<a name="line.48"></a>
+<span class="sourceLineNo">049</span> .build();<a name="line.49"></a>
+<span class="sourceLineNo">050</span> }<a name="line.50"></a>
+<span class="sourceLineNo">051</span><a name="line.51"></a>
+<span class="sourceLineNo">052</span> private static BucketCacheProtos.BackingMap toPB(<a name="line.52"></a>
+<span class="sourceLineNo">053</span> Map<BlockCacheKey, BucketCache.BucketEntry> backingMap) {<a name="line.53"></a>
+<span class="sourceLineNo">054</span> BucketCacheProtos.BackingMap.Builder builder = BucketCacheProtos.BackingMap.newBuilder();<a name="line.54"></a>
+<span class="sourceLineNo">055</span> for (Map.Entry<BlockCacheKey, BucketCache.BucketEntry> entry : backingMap.entrySet()) {<a name="line.55"></a>
+<span class="sourceLineNo">056</span> builder.addEntry(BucketCacheProtos.BackingMapEntry.newBuilder()<a name="line.56"></a>
+<span class="sourceLineNo">057</span> .setKey(toPB(entry.getKey()))<a name="line.57"></a>
+<span class="sourceLineNo">058</span> .setValue(toPB(entry.getValue()))<a name="line.58"></a>
+<span class="sourceLineNo">059</span> .build());<a name="line.59"></a>
+<span class="sourceLineNo">060</span> }<a name="line.60"></a>
+<span class="sourceLineNo">061</span> return builder.build();<a name="line.61"></a>
+<span class="sourceLineNo">062</span> }<a name="line.62"></a>
+<span class="sourceLineNo">063</span><a name="line.63"></a>
+<span class="sourceLineNo">064</span> private static BucketCacheProtos.BlockCacheKey toPB(BlockCacheKey key) {<a name="line.64"></a>
+<span class="sourceLineNo">065</span> return BucketCacheProtos.BlockCacheKey.newBuilder()<a name="line.65"></a>
+<span class="sourceLineNo">066</span> .setHfilename(key.getHfileName())<a name="line.66"></a>
+<span class="sourceLineNo">067</span> .setOffset(key.getOffset())<a name="line.67"></a>
+<span class="sourceLineNo">068</span> .setPrimaryReplicaBlock(key.isPrimary())<a name="line.68"></a>
+<span class="sourceLineNo">069</span> .setBlockType(toPB(key.getBlockType()))<a name="line.69"></a>
+<span class="sourceLineNo">070</span> .build();<a name="line.70"></a>
+<span class="sourceLineNo">071</span> }<a name="line.71"></a>
+<span class="sourceLineNo">072</span><a name="line.72"></a>
+<span class="sourceLineNo">073</span> private static BucketCacheProtos.BlockType toPB(BlockType blockType) {<a name="line.73"></a>
+<span class="sourceLineNo">074</span> switch(blockType) {<a name="line.74"></a>
+<span class="sourceLineNo">075</span> case DATA:<a name="line.75"></a>
+<span class="sourceLineNo">076</span> return BucketCacheProtos.BlockType.data;<a name="line.76"></a>
+<span class="sourceLineNo">077</span> case META:<a name="line.77"></a>
+<span class="sourceLineNo">078</span> return BucketCacheProtos.BlockType.meta;<a name="line.78"></a>
+<span class="sourceLineNo">079</span> case TRAILER:<a name="line.79"></a>
+<span class="sourceLineNo">080</span> return BucketCacheProtos.BlockType.trailer;<a name="line.80"></a>
+<span class="sourceLineNo">081</span> case INDEX_V1:<a name="line.81"></a>
+<span class="sourceLineNo">082</span> return BucketCacheProtos.BlockType.index_v1;<a name="line.82"></a>
+<span class="sourceLineNo">083</span> case FILE_INFO:<a name="line.83"></a>
+<span class="sourceLineNo">084</span> return BucketCacheProtos.BlockType.file_info;<a name="line.84"></a>
+<span class="sourceLineNo">085</span> case LEAF_INDEX:<a name="line.85"></a>
+<span class="sourceLineNo">086</span> return BucketCacheProtos.BlockType.leaf_index;<a name="line.86"></a>
+<span class="sourceLineNo">087</span> case ROOT_INDEX:<a name="line.87"></a>
+<span class="sourceLineNo">088</span> return BucketCacheProtos.BlockType.root_index;<a name="line.88"></a>
+<span class="sourceLineNo">089</span> case BLOOM_CHUNK:<a name="line.89"></a>
+<span class="sourceLineNo">090</span> return BucketCacheProtos.BlockType.bloom_chunk;<a name="line.90"></a>
+<span class="sourceLineNo">091</span> case ENCODED_DATA:<a name="line.91"></a>
+<span class="sourceLineNo">092</span> return BucketCacheProtos.BlockType.encoded_data;<a name="line.92"></a>
+<span class="sourceLineNo">093</span> case GENERAL_BLOOM_META:<a name="line.93"></a>
+<span class="sourceLineNo">094</span> return BucketCacheProtos.BlockType.general_bloom_meta;<a name="line.94"></a>
+<span class="sourceLineNo">095</span> case INTERMEDIATE_INDEX:<a name="line.95"></a>
+<span class="sourceLineNo">096</span> return BucketCacheProtos.BlockType.intermediate_index;<a name="line.96"></a>
+<span class="sourceLineNo">097</span> case DELETE_FAMILY_BLOOM_META:<a name="line.97"></a>
+<span class="sourceLineNo">098</span> return BucketCacheProtos.BlockType.delete_family_bloom_meta;<a name="line.98"></a>
+<span class="sourceLineNo">099</span> default:<a name="line.99"></a>
+<span class="sourceLineNo">100</span> throw new Error("Unrecognized BlockType.");<a name="line.100"></a>
+<span class="sourceLineNo">101</span> }<a name="line.101"></a>
+<span class="sourceLineNo">102</span> }<a name="line.102"></a>
+<span class="sourceLineNo">103</span><a name="line.103"></a>
+<span class="sourceLineNo">104</span> private static BucketCacheProtos.BucketEntry toPB(BucketCache.BucketEntry entry) {<a name="line.104"></a>
+<span class="sourceLineNo">105</span> return BucketCacheProtos.BucketEntry.newBuilder()<a name="line.105"></a>
+<span class="sourceLineNo">106</span> .setOffset(entry.offset())<a name="line.106"></a>
+<span class="sourceLineNo">107</span> .setLength(entry.getLength())<a name="line.107"></a>
+<span class="sourceLineNo">108</span> .setDeserialiserIndex(entry.deserialiserIndex)<a name="line.108"></a>
+<span class="sourceLineNo">109</span> .setAccessCounter(entry.getAccessCounter())<a name="line.109"></a>
+<span class="sourceLineNo">110</span> .setPriority(toPB(entry.getPriority()))<a name="line.110"></a>
+<span class="sourceLineNo">111</span> .build();<a name="line.111"></a>
+<span class="sourceLineNo">112</span> }<a name="line.112"></a>
+<span class="sourceLineNo">113</span><a name="line.113"></a>
+<span class="sourceLineNo">114</span> private static BucketCacheProtos.BlockPriority toPB(BlockPriority p) {<a name="line.114"></a>
+<span class="sourceLineNo">115</span> switch (p) {<a name="line.115"></a>
+<span class="sourceLineNo">116</span> case MULTI:<a name="line.116"></a>
+<span class="sourceLineNo">117</span> return BucketCacheProtos.BlockPriority.multi;<a name="line.117"></a>
+<span class="sourceLineNo">118</span> case MEMORY:<a name="line.118"></a>
+<span class="sourceLineNo">119</span> return BucketCacheProtos.BlockPriority.memory;<a name="line.119"></a>
+<span class="sourceLineNo">120</span> case SINGLE:<a name="line.120"></a>
+<span class="sourceLineNo">121</span> return BucketCacheProtos.BlockPriority.single;<a name="line.121"></a>
+<span class="sourceLineNo">122</span> default:<a name="line.122"></a>
+<span class="sourceLineNo">123</span> throw new Error("Unrecognized BlockPriority.");<a name="line.123"></a>
+<span class="sourceLineNo">124</span> }<a name="line.124"></a>
+<span class="sourceLineNo">125</span> }<a name="line.125"></a>
+<span class="sourceLineNo">126</span><a name="line.126"></a>
+<span class="sourceLineNo">127</span> static ConcurrentHashMap<BlockCacheKey, BucketCache.BucketEntry> fromPB(<a name="line.127"></a>
+<span class="sourceLineNo">128</span> Map<Integer, String> deserializers, BucketCacheProtos.BackingMap backingMap)<a name="line.128"></a>
+<span class="sourceLineNo">129</span> throws IOException {<a name="line.129"></a>
+<span class="sourceLineNo">130</span> ConcurrentHashMap<BlockCacheKey, BucketCache.BucketEntry> result = new ConcurrentHashMap<>();<a name="line.130"></a>
+<span class="sourceLineNo">131</span> for (BucketCacheProtos.BackingMapEntry entry : backingMap.getEntryList()) {<a name="line.131"></a>
+<span class="sourceLineNo">132</span> BucketCacheProtos.BlockCacheKey protoKey = entry.getKey();<a name="line.132"></a>
+<span class="sourceLineNo">133</span> BlockCacheKey key = new BlockCacheKey(protoKey.getHfilename(), protoKey.getOffset(),<a name="line.133"></a>
+<span class="sourceLineNo">134</span> protoKey.getPrimaryReplicaBlock(), fromPb(protoKey.getBlockType()));<a name="line.134"></a>
+<span class="sourceLineNo">135</span> BucketCacheProtos.BucketEntry protoValue = entry.getValue();<a name="line.135"></a>
+<span class="sourceLineNo">136</span> BucketCache.BucketEntry value = new BucketCache.BucketEntry(<a name="line.136"></a>
+<span class="sourceLineNo">137</span> protoValue.getOffset(),<a name="line.137"></a>
+<span class="sourceLineNo">138</span> protoValue.getLength(),<a name="line.138"></a>
+<span class="sourceLineNo">139</span> protoValue.getAccessCounter(),<a name="line.139"></a>
+<span class="sourceLineNo">140</span> protoValue.getPriority() == BucketCacheProtos.BlockPriority.memory);<a name="line.140"></a>
+<span class="sourceLineNo">141</span> // This is the deserializer that we stored<a name="line.141"></a>
+<span class="sourceLineNo">142</span> int oldIndex = protoValue.getDeserialiserIndex();<a name="line.142"></a>
+<span class="sourceLineNo">143</span> String deserializerClass = deserializers.get(oldIndex);<a name="line.143"></a>
+<span class="sourceLineNo">144</span> if (deserializerClass == null) {<a name="line.144"></a>
+<span class="sourceLineNo">145</span> throw new IOException("Found deserializer index without matching entry.");<a name="line.145"></a>
+<span class="sourceLineNo">146</span> }<a name="line.146"></a>
+<span class="sourceLineNo">147</span> // Convert it to the identifier for the deserializer that we have in this runtime<a name="line.147"></a>
+<span class="sourceLineNo">148</span> if (deserializerClass.equals(HFileBlock.BlockDeserializer.class.getName())) {<a name="line.148"></a>
+<span class="sourceLineNo">149</span> int actualIndex = HFileBlock.BLOCK_DESERIALIZER.getDeserialiserIdentifier();<a name="line.149"></a>
+<span class="sourceLineNo">150</span> value.deserialiserIndex = (byte) actualIndex;<a name="line.150"></a>
+<span class="sourceLineNo">151</span> } else {<a name="line.151"></a>
+<span class="sourceLineNo">152</span> // We could make this more plugable, but right now HFileBlock is the only implementation<a name="line.152"></a>
+<span class="sourceLineNo">153</span> // of Cacheable outside of tests, so this might not ever matter.<a name="line.153"></a>
+<span class="sourceLineNo">154</span> throw new IOException("Unknown deserializer class found: " + deserializerClass);<a name="line.154"></a>
+<span class="sourceLineNo">155</span> }<a name="line.155"></a>
+<span class="sourceLineNo">156</span> result.put(key, value);<a name="line.156"></a>
+<span class="sourceLineNo">157</span> }<a name="line.157"></a>
+<span class="sourceLineNo">158</span> return result;<a name="line.158"></a>
+<span class="sourceLineNo">159</span> }<a name="line.159"></a>
+<span class="sourceLineNo">160</span><a name="line.160"></a>
+<span class="sourceLineNo">161</span> private static BlockType fromPb(BucketCacheProtos.BlockType blockType) {<a name="line.161"></a>
+<span class="sourceLineNo">162</span> switch (blockType) {<a name="line.162"></a>
+<span class="sourceLineNo">163</span> case data:<a name="line.163"></a>
+<span class="sourceLineNo">164</span> return BlockType.DATA;<a name="line.164"></a>
+<span class="sourceLineNo">165</span> case meta:<a name="line.165"></a>
+<span class="sourceLineNo">166</span> return BlockType.META;<a name="line.166"></a>
+<span class="sourceLineNo">167</span> case trailer:<a name="line.167"></a>
+<span class="sourceLineNo">168</span> return BlockType.TRAILER;<a name="line.168"></a>
+<span class="sourceLineNo">169</span> case index_v1:<a name="line.169"></a>
+<span class="sourceLineNo">170</span> return BlockType.INDEX_V1;<a name="line.170"></a>
+<span class="sourceLineNo">171</span> case file_info:<a name="line.171"></a>
+<span class="sourceLineNo">172</span> return BlockType.FILE_INFO;<a name="line.172"></a>
+<span class="sourceLineNo">173</span> case leaf_index:<a name="line.173"></a>
+<span class="sourceLineNo">174</span> return BlockType.LEAF_INDEX;<a name="line.174"></a>
+<span class="sourceLineNo">175</span> case root_index:<a name="line.175"></a>
+<span class="sourceLineNo">176</span> return BlockType.ROOT_INDEX;<a name="line.176"></a>
+<span class="sourceLineNo">177</span> case bloom_chunk:<a name="line.177"></a>
+<span class="sourceLineNo">178</span> return BlockType.BLOOM_CHUNK;<a name="line.178"></a>
+<span class="sourceLineNo">179</span> case encoded_data:<a name="line.179"></a>
+<span class="sourceLineNo">180</span> return BlockType.ENCODED_DATA;<a name="line.180"></a>
+<span class="sourceLineNo">181</span> case general_bloom_meta:<a name="line.181"></a>
+<span class="sourceLineNo">182</span> return BlockType.GENERAL_BLOOM_META;<a name="line.182"></a>
+<span class="sourceLineNo">183</span> case intermediate_index:<a name="line.183"></a>
+<span class="sourceLineNo">184</span> return BlockType.INTERMEDIATE_INDEX;<a name="line.184"></a>
+<span class="sourceLineNo">185</span> case delete_family_bloom_meta:<a name="line.185"></a>
+<span class="sourceLineNo">186</span> return BlockType.DELETE_FAMILY_BLOOM_META;<a name="line.186"></a>
+<span class="sourceLineNo">187</span> default:<a name="line.187"></a>
+<span class="sourceLineNo">188</span> throw new Error("Unrecognized BlockType.");<a name="line.188"></a>
+<span class="sourceLineNo">189</span> }<a name="line.189"></a>
+<span class="sourceLineNo">190</span> }<a name="line.190"></a>
+<span class="sourceLineNo">191</span>}<a name="line.191"></a>
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+</pre>
+</div>
+</body>
+</html>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/7cf6034b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/UniqueIndexMap.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/UniqueIndexMap.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/UniqueIndexMap.html
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--- a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/UniqueIndexMap.html
+++ /dev/null
@@ -1,128 +0,0 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html lang="en">
-<head>
-<title>Source code</title>
-<link rel="stylesheet" type="text/css" href="../../../../../../../../stylesheet.css" title="Style">
-</head>
-<body>
-<div class="sourceContainer">
-<pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a>
-<span class="sourceLineNo">002</span> * Copyright The Apache Software Foundation<a name="line.2"></a>
-<span class="sourceLineNo">003</span> *<a name="line.3"></a>
-<span class="sourceLineNo">004</span> * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.4"></a>
-<span class="sourceLineNo">005</span> * contributor license agreements. See the NOTICE file distributed with this<a name="line.5"></a>
-<span class="sourceLineNo">006</span> * work for additional information regarding copyright ownership. The ASF<a name="line.6"></a>
-<span class="sourceLineNo">007</span> * licenses this file to you under the Apache License, Version 2.0 (the<a name="line.7"></a>
-<span class="sourceLineNo">008</span> * "License"); you may not use this file except in compliance with the License.<a name="line.8"></a>
-<span class="sourceLineNo">009</span> * You may obtain a copy of the License at<a name="line.9"></a>
-<span class="sourceLineNo">010</span> *<a name="line.10"></a>
-<span class="sourceLineNo">011</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.11"></a>
-<span class="sourceLineNo">012</span> *<a name="line.12"></a>
-<span class="sourceLineNo">013</span> * Unless required by applicable law or agreed to in writing, software<a name="line.13"></a>
-<span class="sourceLineNo">014</span> * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT<a name="line.14"></a>
-<span class="sourceLineNo">015</span> * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the<a name="line.15"></a>
-<span class="sourceLineNo">016</span> * License for the specific language governing permissions and limitations<a name="line.16"></a>
-<span class="sourceLineNo">017</span> * under the License.<a name="line.17"></a>
-<span class="sourceLineNo">018</span> */<a name="line.18"></a>
-<span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.io.hfile.bucket;<a name="line.19"></a>
-<span class="sourceLineNo">020</span><a name="line.20"></a>
-<span class="sourceLineNo">021</span>import java.io.Serializable;<a name="line.21"></a>
-<span class="sourceLineNo">022</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.22"></a>
-<span class="sourceLineNo">023</span>import java.util.concurrent.atomic.AtomicInteger;<a name="line.23"></a>
-<span class="sourceLineNo">024</span><a name="line.24"></a>
-<span class="sourceLineNo">025</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.25"></a>
-<span class="sourceLineNo">026</span><a name="line.26"></a>
-<span class="sourceLineNo">027</span>/**<a name="line.27"></a>
-<span class="sourceLineNo">028</span> * Map from type T to int and vice-versa. Used for reducing bit field item<a name="line.28"></a>
-<span class="sourceLineNo">029</span> * counts.<a name="line.29"></a>
-<span class="sourceLineNo">030</span> */<a name="line.30"></a>
-<span class="sourceLineNo">031</span>@InterfaceAudience.Private<a name="line.31"></a>
-<span class="sourceLineNo">032</span>public final class UniqueIndexMap<T> implements Serializable {<a name="line.32"></a>
-<span class="sourceLineNo">033</span> private static final long serialVersionUID = -1145635738654002342L;<a name="line.33"></a>
-<span class="sourceLineNo">034</span><a name="line.34"></a>
-<span class="sourceLineNo">035</span> ConcurrentHashMap<T, Integer> mForwardMap = new ConcurrentHashMap<>();<a name="line.35"></a>
-<span class="sourceLineNo">036</span> ConcurrentHashMap<Integer, T> mReverseMap = new ConcurrentHashMap<>();<a name="line.36"></a>
-<span class="sourceLineNo">037</span> AtomicInteger mIndex = new AtomicInteger(0);<a name="line.37"></a>
-<span class="sourceLineNo">038</span><a name="line.38"></a>
-<span class="sourceLineNo">039</span> // Map a length to an index. If we can't, allocate a new mapping. We might<a name="line.39"></a>
-<span class="sourceLineNo">040</span> // race here and get two entries with the same deserialiser. This is fine.<a name="line.40"></a>
-<span class="sourceLineNo">041</span> int map(T parameter) {<a name="line.41"></a>
-<span class="sourceLineNo">042</span> Integer ret = mForwardMap.get(parameter);<a name="line.42"></a>
-<span class="sourceLineNo">043</span> if (ret != null) return ret.intValue();<a name="line.43"></a>
-<span class="sourceLineNo">044</span> int nexti = mIndex.incrementAndGet();<a name="line.44"></a>
-<span class="sourceLineNo">045</span> assert (nexti < Short.MAX_VALUE);<a name="line.45"></a>
-<span class="sourceLineNo">046</span> mForwardMap.put(parameter, nexti);<a name="line.46"></a>
-<span class="sourceLineNo">047</span> mReverseMap.put(nexti, parameter);<a name="line.47"></a>
-<span class="sourceLineNo">048</span> return nexti;<a name="line.48"></a>
-<span class="sourceLineNo">049</span> }<a name="line.49"></a>
-<span class="sourceLineNo">050</span><a name="line.50"></a>
-<span class="sourceLineNo">051</span> T unmap(int leni) {<a name="line.51"></a>
-<span class="sourceLineNo">052</span> Integer len = Integer.valueOf(leni);<a name="line.52"></a>
-<span class="sourceLineNo">053</span> assert mReverseMap.containsKey(len);<a name="line.53"></a>
-<span class="sourceLineNo">054</span> return mReverseMap.get(len);<a name="line.54"></a>
-<span class="sourceLineNo">055</span> }<a name="line.55"></a>
-<span class="sourceLineNo">056</span>}<a name="line.56"></a>
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