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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> */<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.regionserver.wal;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.io.ByteArrayOutputStream;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.io.InputStream;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.io.OutputStream;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span><a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.conf.Configuration;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.Cell;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.HBaseInterfaceAudience;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.PrivateCellUtil;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.KeyValue;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.KeyValueUtil;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.codec.BaseDecoder;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.codec.BaseEncoder;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.codec.Codec;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.codec.KeyValueCodecWithTags;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.io.ByteBuffInputStream;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.io.ByteBufferWriter;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.io.ByteBufferWriterOutputStream;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.io.util.Dictionary;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.io.util.StreamUtils;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.nio.ByteBuff;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.util.ByteBufferUtils;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.util.ReflectionUtils;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.io.IOUtils;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span><a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hbase.thirdparty.com.google.protobuf.ByteString;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hbase.thirdparty.com.google.protobuf.UnsafeByteOperations;<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>/**<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> * Compression in this class is lifted off Compressor/KeyValueCompression.<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> * This is a pure coincidence... they are independent and don't have to be compatible.<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> *<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> * This codec is used at server side for writing cells to WAL as well as for sending edits<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * as part of the distributed splitting process.<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> */<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>@InterfaceAudience.LimitedPrivate({HBaseInterfaceAudience.COPROC,<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> HBaseInterfaceAudience.PHOENIX, HBaseInterfaceAudience.CONFIG})<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>public class WALCellCodec implements Codec {<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> /** Configuration key for the class to use when encoding cells in the WAL */<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> public static final String WAL_CELL_CODEC_CLASS_KEY = "hbase.regionserver.wal.codec";<a name="line.62"></a> |
| <span class="sourceLineNo">063</span><a name="line.63"></a> |
| <span class="sourceLineNo">064</span> protected final CompressionContext compression;<a name="line.64"></a> |
| <span class="sourceLineNo">065</span><a name="line.65"></a> |
| <span class="sourceLineNo">066</span> /**<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> * <b>All subclasses must implement a no argument constructor</b><a name="line.67"></a> |
| <span class="sourceLineNo">068</span> */<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> public WALCellCodec() {<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> this.compression = null;<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> /**<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> * Default constructor - <b>all subclasses must implement a constructor with this signature </b><a name="line.74"></a> |
| <span class="sourceLineNo">075</span> * if they are to be dynamically loaded from the {@link Configuration}.<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> * @param conf configuration to configure <tt>this</tt><a name="line.76"></a> |
| <span class="sourceLineNo">077</span> * @param compression compression the codec should support, can be <tt>null</tt> to indicate no<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> * compression<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> */<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> public WALCellCodec(Configuration conf, CompressionContext compression) {<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> this.compression = compression;<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> }<a name="line.82"></a> |
| <span class="sourceLineNo">083</span><a name="line.83"></a> |
| <span class="sourceLineNo">084</span> public static Class<?> getWALCellCodecClass(Configuration conf) {<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> return conf.getClass(WAL_CELL_CODEC_CLASS_KEY, WALCellCodec.class);<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> }<a name="line.86"></a> |
| <span class="sourceLineNo">087</span><a name="line.87"></a> |
| <span class="sourceLineNo">088</span> /**<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> * Create and setup a {@link WALCellCodec} from the {@code cellCodecClsName} and<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> * CompressionContext, if {@code cellCodecClsName} is specified.<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> * Otherwise Cell Codec classname is read from {@link Configuration}.<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> * Fully prepares the codec for use.<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> * @param conf {@link Configuration} to read for the user-specified codec. If none is specified,<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> * uses a {@link WALCellCodec}.<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> * @param cellCodecClsName name of codec<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> * @param compression compression the codec should use<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> * @return a {@link WALCellCodec} ready for use.<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> * @throws UnsupportedOperationException if the codec cannot be instantiated<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> */<a name="line.99"></a> |
| <span class="sourceLineNo">100</span><a name="line.100"></a> |
| <span class="sourceLineNo">101</span> public static WALCellCodec create(Configuration conf, String cellCodecClsName,<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> CompressionContext compression) throws UnsupportedOperationException {<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> if (cellCodecClsName == null) {<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> cellCodecClsName = getWALCellCodecClass(conf).getName();<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> }<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> return ReflectionUtils.instantiateWithCustomCtor(cellCodecClsName, new Class[]<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> { Configuration.class, CompressionContext.class }, new Object[] { conf, compression });<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> }<a name="line.108"></a> |
| <span class="sourceLineNo">109</span><a name="line.109"></a> |
| <span class="sourceLineNo">110</span> /**<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> * Create and setup a {@link WALCellCodec} from the<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> * CompressionContext.<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> * Cell Codec classname is read from {@link Configuration}.<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> * Fully prepares the codec for use.<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> * @param conf {@link Configuration} to read for the user-specified codec. If none is specified,<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> * uses a {@link WALCellCodec}.<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> * @param compression compression the codec should use<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> * @return a {@link WALCellCodec} ready for use.<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> * @throws UnsupportedOperationException if the codec cannot be instantiated<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> */<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> public static WALCellCodec create(Configuration conf,<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> CompressionContext compression) throws UnsupportedOperationException {<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> String cellCodecClsName = getWALCellCodecClass(conf).getName();<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> return ReflectionUtils.instantiateWithCustomCtor(cellCodecClsName, new Class[]<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> { Configuration.class, CompressionContext.class }, new Object[] { conf, compression });<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> }<a name="line.126"></a> |
| <span class="sourceLineNo">127</span><a name="line.127"></a> |
| <span class="sourceLineNo">128</span> public interface ByteStringCompressor {<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> ByteString compress(byte[] data, Enum dictIndex) throws IOException;<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> }<a name="line.130"></a> |
| <span class="sourceLineNo">131</span><a name="line.131"></a> |
| <span class="sourceLineNo">132</span> public interface ByteStringUncompressor {<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> byte[] uncompress(ByteString data, Enum dictIndex) throws IOException;<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> }<a name="line.134"></a> |
| <span class="sourceLineNo">135</span><a name="line.135"></a> |
| <span class="sourceLineNo">136</span> static class StatelessUncompressor implements ByteStringUncompressor {<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> CompressionContext compressionContext;<a name="line.137"></a> |
| <span class="sourceLineNo">138</span><a name="line.138"></a> |
| <span class="sourceLineNo">139</span> public StatelessUncompressor(CompressionContext compressionContext) {<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> this.compressionContext = compressionContext;<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> }<a name="line.141"></a> |
| <span class="sourceLineNo">142</span><a name="line.142"></a> |
| <span class="sourceLineNo">143</span> @Override<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> public byte[] uncompress(ByteString data, Enum dictIndex) throws IOException {<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> return WALCellCodec.uncompressByteString(data, compressionContext.getDictionary(dictIndex));<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> }<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> }<a name="line.147"></a> |
| <span class="sourceLineNo">148</span><a name="line.148"></a> |
| <span class="sourceLineNo">149</span> static class BaosAndCompressor extends ByteArrayOutputStream implements ByteStringCompressor {<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> private CompressionContext compressionContext;<a name="line.150"></a> |
| <span class="sourceLineNo">151</span><a name="line.151"></a> |
| <span class="sourceLineNo">152</span> public BaosAndCompressor(CompressionContext compressionContext) {<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> this.compressionContext = compressionContext;<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> }<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> public ByteString toByteString() {<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> // We need this copy to create the ByteString as the byte[] 'buf' is not immutable. We reuse<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> // them.<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> return ByteString.copyFrom(this.buf, 0, this.count);<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> @Override<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> public ByteString compress(byte[] data, Enum dictIndex) throws IOException {<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> writeCompressed(data, dictIndex);<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> // We need this copy to create the ByteString as the byte[] 'buf' is not immutable. We reuse<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> // them.<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> ByteString result = ByteString.copyFrom(this.buf, 0, this.count);<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> reset(); // Only resets the count - we reuse the byte array.<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> return result;<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> }<a name="line.169"></a> |
| <span class="sourceLineNo">170</span><a name="line.170"></a> |
| <span class="sourceLineNo">171</span> private void writeCompressed(byte[] data, Enum dictIndex) throws IOException {<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> Dictionary dict = compressionContext.getDictionary(dictIndex);<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> assert dict != null;<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> short dictIdx = dict.findEntry(data, 0, data.length);<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> if (dictIdx == Dictionary.NOT_IN_DICTIONARY) {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> write(Dictionary.NOT_IN_DICTIONARY);<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> StreamUtils.writeRawVInt32(this, data.length);<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> write(data, 0, data.length);<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> } else {<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> StreamUtils.writeShort(this, dictIdx);<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> }<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> }<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> }<a name="line.183"></a> |
| <span class="sourceLineNo">184</span><a name="line.184"></a> |
| <span class="sourceLineNo">185</span> static class NoneCompressor implements ByteStringCompressor {<a name="line.185"></a> |
| <span class="sourceLineNo">186</span><a name="line.186"></a> |
| <span class="sourceLineNo">187</span> @Override<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> public ByteString compress(byte[] data, Enum dictIndex) {<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> return UnsafeByteOperations.unsafeWrap(data);<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> |
| <span class="sourceLineNo">192</span><a name="line.192"></a> |
| <span class="sourceLineNo">193</span> static class NoneUncompressor implements ByteStringUncompressor {<a name="line.193"></a> |
| <span class="sourceLineNo">194</span><a name="line.194"></a> |
| <span class="sourceLineNo">195</span> @Override<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> public byte[] uncompress(ByteString data, Enum dictIndex) {<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> return data.toByteArray();<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> }<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> }<a name="line.199"></a> |
| <span class="sourceLineNo">200</span><a name="line.200"></a> |
| <span class="sourceLineNo">201</span> private static byte[] uncompressByteString(ByteString bs, Dictionary dict) throws IOException {<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> InputStream in = bs.newInput();<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> byte status = (byte)in.read();<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> if (status == Dictionary.NOT_IN_DICTIONARY) {<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> byte[] arr = new byte[StreamUtils.readRawVarint32(in)];<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> int bytesRead = in.read(arr);<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> if (bytesRead != arr.length) {<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> throw new IOException("Cannot read; wanted " + arr.length + ", but got " + bytesRead);<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> }<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> if (dict != null) dict.addEntry(arr, 0, arr.length);<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> return arr;<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> } else {<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> // Status here is the higher-order byte of index of the dictionary entry.<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> short dictIdx = StreamUtils.toShort(status, (byte)in.read());<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> byte[] entry = dict.getEntry(dictIdx);<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> if (entry == null) {<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> throw new IOException("Missing dictionary entry for index " + dictIdx);<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> }<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> return entry;<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> }<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> }<a name="line.221"></a> |
| <span class="sourceLineNo">222</span><a name="line.222"></a> |
| <span class="sourceLineNo">223</span> static class CompressedKvEncoder extends BaseEncoder {<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> private final CompressionContext compression;<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> public CompressedKvEncoder(OutputStream out, CompressionContext compression) {<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> super(out);<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> this.compression = compression;<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> }<a name="line.228"></a> |
| <span class="sourceLineNo">229</span><a name="line.229"></a> |
| <span class="sourceLineNo">230</span> @Override<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> public void write(Cell cell) throws IOException {<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> // We first write the KeyValue infrastructure as VInts.<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> StreamUtils.writeRawVInt32(out, KeyValueUtil.keyLength(cell));<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> StreamUtils.writeRawVInt32(out, cell.getValueLength());<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> // To support tags<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> int tagsLength = cell.getTagsLength();<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> StreamUtils.writeRawVInt32(out, tagsLength);<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> PrivateCellUtil.compressRow(out, cell,<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> compression.getDictionary(CompressionContext.DictionaryIndex.ROW));<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> PrivateCellUtil.compressFamily(out, cell,<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> compression.getDictionary(CompressionContext.DictionaryIndex.FAMILY));<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> PrivateCellUtil.compressQualifier(out, cell,<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> compression.getDictionary(CompressionContext.DictionaryIndex.QUALIFIER));<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> // Write timestamp, type and value as uncompressed.<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> StreamUtils.writeLong(out, cell.getTimestamp());<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> out.write(cell.getTypeByte());<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> PrivateCellUtil.writeValue(out, cell, cell.getValueLength());<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> if (tagsLength > 0) {<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> if (compression.tagCompressionContext != null) {<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> // Write tags using Dictionary compression<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> PrivateCellUtil.compressTags(out, cell, compression.tagCompressionContext);<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> } else {<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> // Tag compression is disabled within the WAL compression. Just write the tags bytes as<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> // it is.<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> PrivateCellUtil.writeTags(out, cell, tagsLength);<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> }<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> }<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> }<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> }<a name="line.259"></a> |
| <span class="sourceLineNo">260</span><a name="line.260"></a> |
| <span class="sourceLineNo">261</span> static class CompressedKvDecoder extends BaseDecoder {<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> private final CompressionContext compression;<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> public CompressedKvDecoder(InputStream in, CompressionContext compression) {<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> super(in);<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> this.compression = compression;<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> }<a name="line.266"></a> |
| <span class="sourceLineNo">267</span><a name="line.267"></a> |
| <span class="sourceLineNo">268</span> @Override<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> protected Cell parseCell() throws IOException {<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> int keylength = StreamUtils.readRawVarint32(in);<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> int vlength = StreamUtils.readRawVarint32(in);<a name="line.271"></a> |
| <span class="sourceLineNo">272</span><a name="line.272"></a> |
| <span class="sourceLineNo">273</span> int tagsLength = StreamUtils.readRawVarint32(in);<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> int length = 0;<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> if(tagsLength == 0) {<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> length = KeyValue.KEYVALUE_INFRASTRUCTURE_SIZE + keylength + vlength;<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> } else {<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> length = KeyValue.KEYVALUE_WITH_TAGS_INFRASTRUCTURE_SIZE + keylength + vlength + tagsLength;<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> }<a name="line.279"></a> |
| <span class="sourceLineNo">280</span><a name="line.280"></a> |
| <span class="sourceLineNo">281</span> byte[] backingArray = new byte[length];<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> int pos = 0;<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> pos = Bytes.putInt(backingArray, pos, keylength);<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> pos = Bytes.putInt(backingArray, pos, vlength);<a name="line.284"></a> |
| <span class="sourceLineNo">285</span><a name="line.285"></a> |
| <span class="sourceLineNo">286</span> // the row<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> int elemLen = readIntoArray(backingArray, pos + Bytes.SIZEOF_SHORT,<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> compression.getDictionary(CompressionContext.DictionaryIndex.ROW));<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> checkLength(elemLen, Short.MAX_VALUE);<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> pos = Bytes.putShort(backingArray, pos, (short)elemLen);<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> pos += elemLen;<a name="line.291"></a> |
| <span class="sourceLineNo">292</span><a name="line.292"></a> |
| <span class="sourceLineNo">293</span> // family<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> elemLen = readIntoArray(backingArray, pos + Bytes.SIZEOF_BYTE,<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> compression.getDictionary(CompressionContext.DictionaryIndex.FAMILY));<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> checkLength(elemLen, Byte.MAX_VALUE);<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> pos = Bytes.putByte(backingArray, pos, (byte)elemLen);<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> pos += elemLen;<a name="line.298"></a> |
| <span class="sourceLineNo">299</span><a name="line.299"></a> |
| <span class="sourceLineNo">300</span> // qualifier<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> elemLen = readIntoArray(backingArray, pos,<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> compression.getDictionary(CompressionContext.DictionaryIndex.QUALIFIER));<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> pos += elemLen;<a name="line.303"></a> |
| <span class="sourceLineNo">304</span><a name="line.304"></a> |
| <span class="sourceLineNo">305</span> // timestamp, type and value<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> int tsTypeValLen = length - pos;<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> if (tagsLength > 0) {<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> tsTypeValLen = tsTypeValLen - tagsLength - KeyValue.TAGS_LENGTH_SIZE;<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> }<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> IOUtils.readFully(in, backingArray, pos, tsTypeValLen);<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> pos += tsTypeValLen;<a name="line.311"></a> |
| <span class="sourceLineNo">312</span><a name="line.312"></a> |
| <span class="sourceLineNo">313</span> // tags<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> if (tagsLength > 0) {<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> pos = Bytes.putAsShort(backingArray, pos, tagsLength);<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> if (compression.tagCompressionContext != null) {<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> compression.tagCompressionContext.uncompressTags(in, backingArray, pos, tagsLength);<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> } else {<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> IOUtils.readFully(in, backingArray, pos, tagsLength);<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> }<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> }<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> return new KeyValue(backingArray, 0, length);<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> }<a name="line.323"></a> |
| <span class="sourceLineNo">324</span><a name="line.324"></a> |
| <span class="sourceLineNo">325</span> private int readIntoArray(byte[] to, int offset, Dictionary dict) throws IOException {<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> byte status = (byte)in.read();<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> if (status == Dictionary.NOT_IN_DICTIONARY) {<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> // status byte indicating that data to be read is not in dictionary.<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> // if this isn't in the dictionary, we need to add to the dictionary.<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> int length = StreamUtils.readRawVarint32(in);<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> IOUtils.readFully(in, to, offset, length);<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> dict.addEntry(to, offset, length);<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> return length;<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> } else {<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> // the status byte also acts as the higher order byte of the dictionary entry.<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> short dictIdx = StreamUtils.toShort(status, (byte)in.read());<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> byte[] entry = dict.getEntry(dictIdx);<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> if (entry == null) {<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> throw new IOException("Missing dictionary entry for index " + dictIdx);<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> }<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> // now we write the uncompressed value.<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> Bytes.putBytes(to, offset, entry, 0, entry.length);<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> return entry.length;<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> }<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> }<a name="line.345"></a> |
| <span class="sourceLineNo">346</span><a name="line.346"></a> |
| <span class="sourceLineNo">347</span> private static void checkLength(int len, int max) throws IOException {<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> if (len < 0 || len > max) {<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> throw new IOException("Invalid length for compresesed portion of keyvalue: " + len);<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> }<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> }<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> }<a name="line.352"></a> |
| <span class="sourceLineNo">353</span><a name="line.353"></a> |
| <span class="sourceLineNo">354</span> public static class EnsureKvEncoder extends BaseEncoder {<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> public EnsureKvEncoder(OutputStream out) {<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> super(out);<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> }<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> @Override<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> public void write(Cell cell) throws IOException {<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> checkFlushed();<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> // Make sure to write tags into WAL<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> ByteBufferUtils.putInt(this.out, KeyValueUtil.getSerializedSize(cell, true));<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> KeyValueUtil.oswrite(cell, this.out, true);<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> }<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> }<a name="line.365"></a> |
| <span class="sourceLineNo">366</span><a name="line.366"></a> |
| <span class="sourceLineNo">367</span> @Override<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> public Decoder getDecoder(InputStream is) {<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> return (compression == null)<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> ? new KeyValueCodecWithTags.KeyValueDecoder(is) : new CompressedKvDecoder(is, compression);<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> }<a name="line.371"></a> |
| <span class="sourceLineNo">372</span><a name="line.372"></a> |
| <span class="sourceLineNo">373</span> @Override<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> public Decoder getDecoder(ByteBuff buf) {<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> return getDecoder(new ByteBuffInputStream(buf));<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> }<a name="line.376"></a> |
| <span class="sourceLineNo">377</span><a name="line.377"></a> |
| <span class="sourceLineNo">378</span> @Override<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> public Encoder getEncoder(OutputStream os) {<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> os = (os instanceof ByteBufferWriter) ? os<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> : new ByteBufferWriterOutputStream(os);<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> if (compression == null) {<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> return new EnsureKvEncoder(os);<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> }<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> return new CompressedKvEncoder(os, compression);<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> }<a name="line.386"></a> |
| <span class="sourceLineNo">387</span><a name="line.387"></a> |
| <span class="sourceLineNo">388</span> public ByteStringCompressor getByteStringCompressor() {<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> return new BaosAndCompressor(compression);<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> }<a name="line.390"></a> |
| <span class="sourceLineNo">391</span><a name="line.391"></a> |
| <span class="sourceLineNo">392</span> public ByteStringUncompressor getByteStringUncompressor() {<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> return new StatelessUncompressor(compression);<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> }<a name="line.394"></a> |
| <span class="sourceLineNo">395</span><a name="line.395"></a> |
| <span class="sourceLineNo">396</span> public static ByteStringCompressor getNoneCompressor() {<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> return new NoneCompressor();<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> }<a name="line.398"></a> |
| <span class="sourceLineNo">399</span><a name="line.399"></a> |
| <span class="sourceLineNo">400</span> public static ByteStringUncompressor getNoneUncompressor() {<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> return new NoneUncompressor();<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> }<a name="line.402"></a> |
| <span class="sourceLineNo">403</span>}<a name="line.403"></a> |
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| </div> |
| </body> |
| </html> |
