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| <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.io.compress;</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.BufferedInputStream;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.io.BufferedOutputStream;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.io.FilterOutputStream;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.io.IOException;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.io.InputStream;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.io.OutputStream;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.conf.Configurable;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.HBaseConfiguration;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.io.compress.CodecPool;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.io.compress.CompressionCodec;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.io.compress.CompressionInputStream;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.io.compress.CompressionOutputStream;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.io.compress.Compressor;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.io.compress.Decompressor;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.io.compress.DoNotPool;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.util.ReflectionUtils;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.slf4j.Logger;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">040</span><span id="line-40"></span> |
| <span class="source-line-no">041</span><span id="line-41">/**</span> |
| <span class="source-line-no">042</span><span id="line-42"> * Compression related stuff. Copied from hadoop-3315 tfile.</span> |
| <span class="source-line-no">043</span><span id="line-43"> */</span> |
| <span class="source-line-no">044</span><span id="line-44">@InterfaceAudience.Private</span> |
| <span class="source-line-no">045</span><span id="line-45">public final class Compression {</span> |
| <span class="source-line-no">046</span><span id="line-46"> private static final Logger LOG = LoggerFactory.getLogger(Compression.class);</span> |
| <span class="source-line-no">047</span><span id="line-47"></span> |
| <span class="source-line-no">048</span><span id="line-48"> // LZO</span> |
| <span class="source-line-no">049</span><span id="line-49"></span> |
| <span class="source-line-no">050</span><span id="line-50"> public static final String LZO_CODEC_CLASS_KEY = "hbase.io.compress.lzo.codec";</span> |
| <span class="source-line-no">051</span><span id="line-51"> public static final String LZO_CODEC_CLASS_DEFAULT = "com.hadoop.compression.lzo.LzoCodec";</span> |
| <span class="source-line-no">052</span><span id="line-52"></span> |
| <span class="source-line-no">053</span><span id="line-53"> // GZ</span> |
| <span class="source-line-no">054</span><span id="line-54"></span> |
| <span class="source-line-no">055</span><span id="line-55"> public static final String GZ_CODEC_CLASS_KEY = "hbase.io.compress.gz.codec";</span> |
| <span class="source-line-no">056</span><span id="line-56"> // Our ReusableStreamGzipCodec fixes an inefficiency in Hadoop's Gzip codec, allowing us to</span> |
| <span class="source-line-no">057</span><span id="line-57"> // reuse compression streams, but still requires the Hadoop native codec.</span> |
| <span class="source-line-no">058</span><span id="line-58"> public static final String GZ_CODEC_CLASS_DEFAULT =</span> |
| <span class="source-line-no">059</span><span id="line-59"> "org.apache.hadoop.hbase.io.compress.ReusableStreamGzipCodec";</span> |
| <span class="source-line-no">060</span><span id="line-60"></span> |
| <span class="source-line-no">061</span><span id="line-61"> // SNAPPY</span> |
| <span class="source-line-no">062</span><span id="line-62"></span> |
| <span class="source-line-no">063</span><span id="line-63"> public static final String SNAPPY_CODEC_CLASS_KEY = "hbase.io.compress.snappy.codec";</span> |
| <span class="source-line-no">064</span><span id="line-64"> public static final String SNAPPY_CODEC_CLASS_DEFAULT =</span> |
| <span class="source-line-no">065</span><span id="line-65"> "org.apache.hadoop.io.compress.SnappyCodec";</span> |
| <span class="source-line-no">066</span><span id="line-66"></span> |
| <span class="source-line-no">067</span><span id="line-67"> // LZ4</span> |
| <span class="source-line-no">068</span><span id="line-68"></span> |
| <span class="source-line-no">069</span><span id="line-69"> public static final String LZ4_CODEC_CLASS_KEY = "hbase.io.compress.lz4.codec";</span> |
| <span class="source-line-no">070</span><span id="line-70"> public static final String LZ4_CODEC_CLASS_DEFAULT = "org.apache.hadoop.io.compress.Lz4Codec";</span> |
| <span class="source-line-no">071</span><span id="line-71"></span> |
| <span class="source-line-no">072</span><span id="line-72"> // ZSTD</span> |
| <span class="source-line-no">073</span><span id="line-73"></span> |
| <span class="source-line-no">074</span><span id="line-74"> public static final String ZSTD_CODEC_CLASS_KEY = "hbase.io.compress.zstd.codec";</span> |
| <span class="source-line-no">075</span><span id="line-75"> public static final String ZSTD_CODEC_CLASS_DEFAULT =</span> |
| <span class="source-line-no">076</span><span id="line-76"> "org.apache.hadoop.io.compress.ZStandardCodec";</span> |
| <span class="source-line-no">077</span><span id="line-77"></span> |
| <span class="source-line-no">078</span><span id="line-78"> // BZIP2</span> |
| <span class="source-line-no">079</span><span id="line-79"></span> |
| <span class="source-line-no">080</span><span id="line-80"> public static final String BZIP2_CODEC_CLASS_KEY = "hbase.io.compress.bzip2.codec";</span> |
| <span class="source-line-no">081</span><span id="line-81"> public static final String BZIP2_CODEC_CLASS_DEFAULT = "org.apache.hadoop.io.compress.BZip2Codec";</span> |
| <span class="source-line-no">082</span><span id="line-82"></span> |
| <span class="source-line-no">083</span><span id="line-83"> // LZMA</span> |
| <span class="source-line-no">084</span><span id="line-84"></span> |
| <span class="source-line-no">085</span><span id="line-85"> public static final String LZMA_CODEC_CLASS_KEY = "hbase.io.compress.lzma.codec";</span> |
| <span class="source-line-no">086</span><span id="line-86"> public static final String LZMA_CODEC_CLASS_DEFAULT =</span> |
| <span class="source-line-no">087</span><span id="line-87"> "org.apache.hadoop.hbase.io.compress.xz.LzmaCodec";</span> |
| <span class="source-line-no">088</span><span id="line-88"></span> |
| <span class="source-line-no">089</span><span id="line-89"> // Brotli</span> |
| <span class="source-line-no">090</span><span id="line-90"></span> |
| <span class="source-line-no">091</span><span id="line-91"> public static final String BROTLI_CODEC_CLASS_KEY = "hbase.io.compress.brotli.codec";</span> |
| <span class="source-line-no">092</span><span id="line-92"> public static final String BROTLI_CODEC_CLASS_DEFAULT =</span> |
| <span class="source-line-no">093</span><span id="line-93"> "org.apache.hadoop.hbase.io.compress.brotli.BrotliCodec";</span> |
| <span class="source-line-no">094</span><span id="line-94"></span> |
| <span class="source-line-no">095</span><span id="line-95"> /**</span> |
| <span class="source-line-no">096</span><span id="line-96"> * Prevent the instantiation of class.</span> |
| <span class="source-line-no">097</span><span id="line-97"> */</span> |
| <span class="source-line-no">098</span><span id="line-98"> private Compression() {</span> |
| <span class="source-line-no">099</span><span id="line-99"> super();</span> |
| <span class="source-line-no">100</span><span id="line-100"> }</span> |
| <span class="source-line-no">101</span><span id="line-101"></span> |
| <span class="source-line-no">102</span><span id="line-102"> static class FinishOnFlushCompressionStream extends FilterOutputStream {</span> |
| <span class="source-line-no">103</span><span id="line-103"> public FinishOnFlushCompressionStream(CompressionOutputStream cout) {</span> |
| <span class="source-line-no">104</span><span id="line-104"> super(cout);</span> |
| <span class="source-line-no">105</span><span id="line-105"> }</span> |
| <span class="source-line-no">106</span><span id="line-106"></span> |
| <span class="source-line-no">107</span><span id="line-107"> @Override</span> |
| <span class="source-line-no">108</span><span id="line-108"> public void write(byte b[], int off, int len) throws IOException {</span> |
| <span class="source-line-no">109</span><span id="line-109"> out.write(b, off, len);</span> |
| <span class="source-line-no">110</span><span id="line-110"> }</span> |
| <span class="source-line-no">111</span><span id="line-111"></span> |
| <span class="source-line-no">112</span><span id="line-112"> @Override</span> |
| <span class="source-line-no">113</span><span id="line-113"> public void flush() throws IOException {</span> |
| <span class="source-line-no">114</span><span id="line-114"> CompressionOutputStream cout = (CompressionOutputStream) out;</span> |
| <span class="source-line-no">115</span><span id="line-115"> cout.finish();</span> |
| <span class="source-line-no">116</span><span id="line-116"> cout.flush();</span> |
| <span class="source-line-no">117</span><span id="line-117"> cout.resetState();</span> |
| <span class="source-line-no">118</span><span id="line-118"> }</span> |
| <span class="source-line-no">119</span><span id="line-119"> }</span> |
| <span class="source-line-no">120</span><span id="line-120"></span> |
| <span class="source-line-no">121</span><span id="line-121"> /**</span> |
| <span class="source-line-no">122</span><span id="line-122"> * Returns the classloader to load the Codec class from.</span> |
| <span class="source-line-no">123</span><span id="line-123"> */</span> |
| <span class="source-line-no">124</span><span id="line-124"> private static ClassLoader getClassLoaderForCodec() {</span> |
| <span class="source-line-no">125</span><span id="line-125"> ClassLoader cl = Thread.currentThread().getContextClassLoader();</span> |
| <span class="source-line-no">126</span><span id="line-126"> if (cl == null) {</span> |
| <span class="source-line-no">127</span><span id="line-127"> cl = Compression.class.getClassLoader();</span> |
| <span class="source-line-no">128</span><span id="line-128"> }</span> |
| <span class="source-line-no">129</span><span id="line-129"> if (cl == null) {</span> |
| <span class="source-line-no">130</span><span id="line-130"> cl = ClassLoader.getSystemClassLoader();</span> |
| <span class="source-line-no">131</span><span id="line-131"> }</span> |
| <span class="source-line-no">132</span><span id="line-132"> if (cl == null) {</span> |
| <span class="source-line-no">133</span><span id="line-133"> throw new RuntimeException("A ClassLoader to load the Codec could not be determined");</span> |
| <span class="source-line-no">134</span><span id="line-134"> }</span> |
| <span class="source-line-no">135</span><span id="line-135"> return cl;</span> |
| <span class="source-line-no">136</span><span id="line-136"> }</span> |
| <span class="source-line-no">137</span><span id="line-137"></span> |
| <span class="source-line-no">138</span><span id="line-138"> /**</span> |
| <span class="source-line-no">139</span><span id="line-139"> * Compression algorithms. The ordinal of these cannot change or else you risk breaking all</span> |
| <span class="source-line-no">140</span><span id="line-140"> * existing HFiles out there. Even the ones that are not compressed! (They use the NONE algorithm)</span> |
| <span class="source-line-no">141</span><span id="line-141"> */</span> |
| <span class="source-line-no">142</span><span id="line-142"> @edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "SE_TRANSIENT_FIELD_NOT_RESTORED",</span> |
| <span class="source-line-no">143</span><span id="line-143"> justification = "We are not serializing so doesn't apply (not sure why transient though)")</span> |
| <span class="source-line-no">144</span><span id="line-144"> @SuppressWarnings("ImmutableEnumChecker")</span> |
| <span class="source-line-no">145</span><span id="line-145"> @InterfaceAudience.Public</span> |
| <span class="source-line-no">146</span><span id="line-146"> public static enum Algorithm {</span> |
| <span class="source-line-no">147</span><span id="line-147"> // LZO is GPL and requires extra install to setup. See</span> |
| <span class="source-line-no">148</span><span id="line-148"> // https://stackoverflow.com/questions/23441142/class-com-hadoop-compression-lzo-lzocodec-not-found-for-spark-on-cdh-5</span> |
| <span class="source-line-no">149</span><span id="line-149"> LZO("lzo", LZO_CODEC_CLASS_KEY, LZO_CODEC_CLASS_DEFAULT) {</span> |
| <span class="source-line-no">150</span><span id="line-150"> // Use base type to avoid compile-time dependencies.</span> |
| <span class="source-line-no">151</span><span id="line-151"> private volatile transient CompressionCodec lzoCodec;</span> |
| <span class="source-line-no">152</span><span id="line-152"> private final transient Object lock = new Object();</span> |
| <span class="source-line-no">153</span><span id="line-153"></span> |
| <span class="source-line-no">154</span><span id="line-154"> @Override</span> |
| <span class="source-line-no">155</span><span id="line-155"> CompressionCodec getCodec(Configuration conf) {</span> |
| <span class="source-line-no">156</span><span id="line-156"> if (lzoCodec == null) {</span> |
| <span class="source-line-no">157</span><span id="line-157"> synchronized (lock) {</span> |
| <span class="source-line-no">158</span><span id="line-158"> if (lzoCodec == null) {</span> |
| <span class="source-line-no">159</span><span id="line-159"> lzoCodec = buildCodec(conf, this);</span> |
| <span class="source-line-no">160</span><span id="line-160"> }</span> |
| <span class="source-line-no">161</span><span id="line-161"> }</span> |
| <span class="source-line-no">162</span><span id="line-162"> }</span> |
| <span class="source-line-no">163</span><span id="line-163"> return lzoCodec;</span> |
| <span class="source-line-no">164</span><span id="line-164"> }</span> |
| <span class="source-line-no">165</span><span id="line-165"></span> |
| <span class="source-line-no">166</span><span id="line-166"> @Override</span> |
| <span class="source-line-no">167</span><span id="line-167"> public CompressionCodec reload(Configuration conf) {</span> |
| <span class="source-line-no">168</span><span id="line-168"> synchronized (lock) {</span> |
| <span class="source-line-no">169</span><span id="line-169"> lzoCodec = buildCodec(conf, this);</span> |
| <span class="source-line-no">170</span><span id="line-170"> LOG.warn("Reloaded configuration for {}", name());</span> |
| <span class="source-line-no">171</span><span id="line-171"> return lzoCodec;</span> |
| <span class="source-line-no">172</span><span id="line-172"> }</span> |
| <span class="source-line-no">173</span><span id="line-173"> }</span> |
| <span class="source-line-no">174</span><span id="line-174"> },</span> |
| <span class="source-line-no">175</span><span id="line-175"></span> |
| <span class="source-line-no">176</span><span id="line-176"> GZ("gz", GZ_CODEC_CLASS_KEY, GZ_CODEC_CLASS_DEFAULT) {</span> |
| <span class="source-line-no">177</span><span id="line-177"> private volatile transient CompressionCodec gzCodec;</span> |
| <span class="source-line-no">178</span><span id="line-178"> private final transient Object lock = new Object();</span> |
| <span class="source-line-no">179</span><span id="line-179"></span> |
| <span class="source-line-no">180</span><span id="line-180"> @Override</span> |
| <span class="source-line-no">181</span><span id="line-181"> CompressionCodec getCodec(Configuration conf) {</span> |
| <span class="source-line-no">182</span><span id="line-182"> if (gzCodec == null) {</span> |
| <span class="source-line-no">183</span><span id="line-183"> synchronized (lock) {</span> |
| <span class="source-line-no">184</span><span id="line-184"> if (gzCodec == null) {</span> |
| <span class="source-line-no">185</span><span id="line-185"> gzCodec = buildCodec(conf, this);</span> |
| <span class="source-line-no">186</span><span id="line-186"> }</span> |
| <span class="source-line-no">187</span><span id="line-187"> }</span> |
| <span class="source-line-no">188</span><span id="line-188"> }</span> |
| <span class="source-line-no">189</span><span id="line-189"> return gzCodec;</span> |
| <span class="source-line-no">190</span><span id="line-190"> }</span> |
| <span class="source-line-no">191</span><span id="line-191"></span> |
| <span class="source-line-no">192</span><span id="line-192"> @Override</span> |
| <span class="source-line-no">193</span><span id="line-193"> public CompressionCodec reload(Configuration conf) {</span> |
| <span class="source-line-no">194</span><span id="line-194"> synchronized (lock) {</span> |
| <span class="source-line-no">195</span><span id="line-195"> gzCodec = buildCodec(conf, this);</span> |
| <span class="source-line-no">196</span><span id="line-196"> LOG.warn("Reloaded configuration for {}", name());</span> |
| <span class="source-line-no">197</span><span id="line-197"> return gzCodec;</span> |
| <span class="source-line-no">198</span><span id="line-198"> }</span> |
| <span class="source-line-no">199</span><span id="line-199"> }</span> |
| <span class="source-line-no">200</span><span id="line-200"> },</span> |
| <span class="source-line-no">201</span><span id="line-201"></span> |
| <span class="source-line-no">202</span><span id="line-202"> NONE("none", "", "") {</span> |
| <span class="source-line-no">203</span><span id="line-203"> @Override</span> |
| <span class="source-line-no">204</span><span id="line-204"> CompressionCodec getCodec(Configuration conf) {</span> |
| <span class="source-line-no">205</span><span id="line-205"> return null;</span> |
| <span class="source-line-no">206</span><span id="line-206"> }</span> |
| <span class="source-line-no">207</span><span id="line-207"></span> |
| <span class="source-line-no">208</span><span id="line-208"> @Override</span> |
| <span class="source-line-no">209</span><span id="line-209"> public CompressionCodec reload(Configuration conf) {</span> |
| <span class="source-line-no">210</span><span id="line-210"> return null;</span> |
| <span class="source-line-no">211</span><span id="line-211"> }</span> |
| <span class="source-line-no">212</span><span id="line-212"></span> |
| <span class="source-line-no">213</span><span id="line-213"> @Override</span> |
| <span class="source-line-no">214</span><span id="line-214"> public synchronized InputStream createDecompressionStream(InputStream downStream,</span> |
| <span class="source-line-no">215</span><span id="line-215"> Decompressor decompressor, int downStreamBufferSize) throws IOException {</span> |
| <span class="source-line-no">216</span><span id="line-216"> if (downStreamBufferSize > 0) {</span> |
| <span class="source-line-no">217</span><span id="line-217"> return new BufferedInputStream(downStream, downStreamBufferSize);</span> |
| <span class="source-line-no">218</span><span id="line-218"> }</span> |
| <span class="source-line-no">219</span><span id="line-219"> return downStream;</span> |
| <span class="source-line-no">220</span><span id="line-220"> }</span> |
| <span class="source-line-no">221</span><span id="line-221"></span> |
| <span class="source-line-no">222</span><span id="line-222"> @Override</span> |
| <span class="source-line-no">223</span><span id="line-223"> public synchronized OutputStream createCompressionStream(OutputStream downStream,</span> |
| <span class="source-line-no">224</span><span id="line-224"> Compressor compressor, int downStreamBufferSize) throws IOException {</span> |
| <span class="source-line-no">225</span><span id="line-225"> if (downStreamBufferSize > 0) {</span> |
| <span class="source-line-no">226</span><span id="line-226"> return new BufferedOutputStream(downStream, downStreamBufferSize);</span> |
| <span class="source-line-no">227</span><span id="line-227"> }</span> |
| <span class="source-line-no">228</span><span id="line-228"></span> |
| <span class="source-line-no">229</span><span id="line-229"> return downStream;</span> |
| <span class="source-line-no">230</span><span id="line-230"> }</span> |
| <span class="source-line-no">231</span><span id="line-231"> },</span> |
| <span class="source-line-no">232</span><span id="line-232"> SNAPPY("snappy", SNAPPY_CODEC_CLASS_KEY, SNAPPY_CODEC_CLASS_DEFAULT) {</span> |
| <span class="source-line-no">233</span><span id="line-233"> // Use base type to avoid compile-time dependencies.</span> |
| <span class="source-line-no">234</span><span id="line-234"> private volatile transient CompressionCodec snappyCodec;</span> |
| <span class="source-line-no">235</span><span id="line-235"> private final transient Object lock = new Object();</span> |
| <span class="source-line-no">236</span><span id="line-236"></span> |
| <span class="source-line-no">237</span><span id="line-237"> @Override</span> |
| <span class="source-line-no">238</span><span id="line-238"> CompressionCodec getCodec(Configuration conf) {</span> |
| <span class="source-line-no">239</span><span id="line-239"> if (snappyCodec == null) {</span> |
| <span class="source-line-no">240</span><span id="line-240"> synchronized (lock) {</span> |
| <span class="source-line-no">241</span><span id="line-241"> if (snappyCodec == null) {</span> |
| <span class="source-line-no">242</span><span id="line-242"> snappyCodec = buildCodec(conf, this);</span> |
| <span class="source-line-no">243</span><span id="line-243"> }</span> |
| <span class="source-line-no">244</span><span id="line-244"> }</span> |
| <span class="source-line-no">245</span><span id="line-245"> }</span> |
| <span class="source-line-no">246</span><span id="line-246"> return snappyCodec;</span> |
| <span class="source-line-no">247</span><span id="line-247"> }</span> |
| <span class="source-line-no">248</span><span id="line-248"></span> |
| <span class="source-line-no">249</span><span id="line-249"> @Override</span> |
| <span class="source-line-no">250</span><span id="line-250"> public CompressionCodec reload(Configuration conf) {</span> |
| <span class="source-line-no">251</span><span id="line-251"> synchronized (lock) {</span> |
| <span class="source-line-no">252</span><span id="line-252"> snappyCodec = buildCodec(conf, this);</span> |
| <span class="source-line-no">253</span><span id="line-253"> LOG.warn("Reloaded configuration for {}", name());</span> |
| <span class="source-line-no">254</span><span id="line-254"> return snappyCodec;</span> |
| <span class="source-line-no">255</span><span id="line-255"> }</span> |
| <span class="source-line-no">256</span><span id="line-256"> }</span> |
| <span class="source-line-no">257</span><span id="line-257"> },</span> |
| <span class="source-line-no">258</span><span id="line-258"> LZ4("lz4", LZ4_CODEC_CLASS_KEY, LZ4_CODEC_CLASS_DEFAULT) {</span> |
| <span class="source-line-no">259</span><span id="line-259"> // Use base type to avoid compile-time dependencies.</span> |
| <span class="source-line-no">260</span><span id="line-260"> private volatile transient CompressionCodec lz4Codec;</span> |
| <span class="source-line-no">261</span><span id="line-261"> private final transient Object lock = new Object();</span> |
| <span class="source-line-no">262</span><span id="line-262"></span> |
| <span class="source-line-no">263</span><span id="line-263"> @Override</span> |
| <span class="source-line-no">264</span><span id="line-264"> CompressionCodec getCodec(Configuration conf) {</span> |
| <span class="source-line-no">265</span><span id="line-265"> if (lz4Codec == null) {</span> |
| <span class="source-line-no">266</span><span id="line-266"> synchronized (lock) {</span> |
| <span class="source-line-no">267</span><span id="line-267"> if (lz4Codec == null) {</span> |
| <span class="source-line-no">268</span><span id="line-268"> lz4Codec = buildCodec(conf, this);</span> |
| <span class="source-line-no">269</span><span id="line-269"> }</span> |
| <span class="source-line-no">270</span><span id="line-270"> }</span> |
| <span class="source-line-no">271</span><span id="line-271"> }</span> |
| <span class="source-line-no">272</span><span id="line-272"> return lz4Codec;</span> |
| <span class="source-line-no">273</span><span id="line-273"> }</span> |
| <span class="source-line-no">274</span><span id="line-274"></span> |
| <span class="source-line-no">275</span><span id="line-275"> @Override</span> |
| <span class="source-line-no">276</span><span id="line-276"> public CompressionCodec reload(Configuration conf) {</span> |
| <span class="source-line-no">277</span><span id="line-277"> synchronized (lock) {</span> |
| <span class="source-line-no">278</span><span id="line-278"> lz4Codec = buildCodec(conf, this);</span> |
| <span class="source-line-no">279</span><span id="line-279"> LOG.warn("Reloaded configuration for {}", name());</span> |
| <span class="source-line-no">280</span><span id="line-280"> return lz4Codec;</span> |
| <span class="source-line-no">281</span><span id="line-281"> }</span> |
| <span class="source-line-no">282</span><span id="line-282"> }</span> |
| <span class="source-line-no">283</span><span id="line-283"> },</span> |
| <span class="source-line-no">284</span><span id="line-284"> BZIP2("bzip2", BZIP2_CODEC_CLASS_KEY, BZIP2_CODEC_CLASS_DEFAULT) {</span> |
| <span class="source-line-no">285</span><span id="line-285"> // Use base type to avoid compile-time dependencies.</span> |
| <span class="source-line-no">286</span><span id="line-286"> private volatile transient CompressionCodec bzipCodec;</span> |
| <span class="source-line-no">287</span><span id="line-287"> private final transient Object lock = new Object();</span> |
| <span class="source-line-no">288</span><span id="line-288"></span> |
| <span class="source-line-no">289</span><span id="line-289"> @Override</span> |
| <span class="source-line-no">290</span><span id="line-290"> CompressionCodec getCodec(Configuration conf) {</span> |
| <span class="source-line-no">291</span><span id="line-291"> if (bzipCodec == null) {</span> |
| <span class="source-line-no">292</span><span id="line-292"> synchronized (lock) {</span> |
| <span class="source-line-no">293</span><span id="line-293"> if (bzipCodec == null) {</span> |
| <span class="source-line-no">294</span><span id="line-294"> bzipCodec = buildCodec(conf, this);</span> |
| <span class="source-line-no">295</span><span id="line-295"> }</span> |
| <span class="source-line-no">296</span><span id="line-296"> }</span> |
| <span class="source-line-no">297</span><span id="line-297"> }</span> |
| <span class="source-line-no">298</span><span id="line-298"> return bzipCodec;</span> |
| <span class="source-line-no">299</span><span id="line-299"> }</span> |
| <span class="source-line-no">300</span><span id="line-300"></span> |
| <span class="source-line-no">301</span><span id="line-301"> @Override</span> |
| <span class="source-line-no">302</span><span id="line-302"> public CompressionCodec reload(Configuration conf) {</span> |
| <span class="source-line-no">303</span><span id="line-303"> synchronized (lock) {</span> |
| <span class="source-line-no">304</span><span id="line-304"> bzipCodec = buildCodec(conf, this);</span> |
| <span class="source-line-no">305</span><span id="line-305"> LOG.warn("Reloaded configuration for {}", name());</span> |
| <span class="source-line-no">306</span><span id="line-306"> return bzipCodec;</span> |
| <span class="source-line-no">307</span><span id="line-307"> }</span> |
| <span class="source-line-no">308</span><span id="line-308"> }</span> |
| <span class="source-line-no">309</span><span id="line-309"> },</span> |
| <span class="source-line-no">310</span><span id="line-310"> ZSTD("zstd", ZSTD_CODEC_CLASS_KEY, ZSTD_CODEC_CLASS_DEFAULT) {</span> |
| <span class="source-line-no">311</span><span id="line-311"> // Use base type to avoid compile-time dependencies.</span> |
| <span class="source-line-no">312</span><span id="line-312"> private volatile transient CompressionCodec zStandardCodec;</span> |
| <span class="source-line-no">313</span><span id="line-313"> private final transient Object lock = new Object();</span> |
| <span class="source-line-no">314</span><span id="line-314"></span> |
| <span class="source-line-no">315</span><span id="line-315"> @Override</span> |
| <span class="source-line-no">316</span><span id="line-316"> CompressionCodec getCodec(Configuration conf) {</span> |
| <span class="source-line-no">317</span><span id="line-317"> if (zStandardCodec == null) {</span> |
| <span class="source-line-no">318</span><span id="line-318"> synchronized (lock) {</span> |
| <span class="source-line-no">319</span><span id="line-319"> if (zStandardCodec == null) {</span> |
| <span class="source-line-no">320</span><span id="line-320"> zStandardCodec = buildCodec(conf, this);</span> |
| <span class="source-line-no">321</span><span id="line-321"> }</span> |
| <span class="source-line-no">322</span><span id="line-322"> }</span> |
| <span class="source-line-no">323</span><span id="line-323"> }</span> |
| <span class="source-line-no">324</span><span id="line-324"> return zStandardCodec;</span> |
| <span class="source-line-no">325</span><span id="line-325"> }</span> |
| <span class="source-line-no">326</span><span id="line-326"></span> |
| <span class="source-line-no">327</span><span id="line-327"> @Override</span> |
| <span class="source-line-no">328</span><span id="line-328"> public CompressionCodec reload(Configuration conf) {</span> |
| <span class="source-line-no">329</span><span id="line-329"> synchronized (lock) {</span> |
| <span class="source-line-no">330</span><span id="line-330"> zStandardCodec = buildCodec(conf, this);</span> |
| <span class="source-line-no">331</span><span id="line-331"> LOG.warn("Reloaded configuration for {}", name());</span> |
| <span class="source-line-no">332</span><span id="line-332"> return zStandardCodec;</span> |
| <span class="source-line-no">333</span><span id="line-333"> }</span> |
| <span class="source-line-no">334</span><span id="line-334"> }</span> |
| <span class="source-line-no">335</span><span id="line-335"> },</span> |
| <span class="source-line-no">336</span><span id="line-336"> LZMA("lzma", LZMA_CODEC_CLASS_KEY, LZMA_CODEC_CLASS_DEFAULT) {</span> |
| <span class="source-line-no">337</span><span id="line-337"> // Use base type to avoid compile-time dependencies.</span> |
| <span class="source-line-no">338</span><span id="line-338"> private volatile transient CompressionCodec lzmaCodec;</span> |
| <span class="source-line-no">339</span><span id="line-339"> private final transient Object lock = new Object();</span> |
| <span class="source-line-no">340</span><span id="line-340"></span> |
| <span class="source-line-no">341</span><span id="line-341"> @Override</span> |
| <span class="source-line-no">342</span><span id="line-342"> CompressionCodec getCodec(Configuration conf) {</span> |
| <span class="source-line-no">343</span><span id="line-343"> if (lzmaCodec == null) {</span> |
| <span class="source-line-no">344</span><span id="line-344"> synchronized (lock) {</span> |
| <span class="source-line-no">345</span><span id="line-345"> if (lzmaCodec == null) {</span> |
| <span class="source-line-no">346</span><span id="line-346"> lzmaCodec = buildCodec(conf, this);</span> |
| <span class="source-line-no">347</span><span id="line-347"> }</span> |
| <span class="source-line-no">348</span><span id="line-348"> }</span> |
| <span class="source-line-no">349</span><span id="line-349"> }</span> |
| <span class="source-line-no">350</span><span id="line-350"> return lzmaCodec;</span> |
| <span class="source-line-no">351</span><span id="line-351"> }</span> |
| <span class="source-line-no">352</span><span id="line-352"></span> |
| <span class="source-line-no">353</span><span id="line-353"> @Override</span> |
| <span class="source-line-no">354</span><span id="line-354"> public CompressionCodec reload(Configuration conf) {</span> |
| <span class="source-line-no">355</span><span id="line-355"> synchronized (lock) {</span> |
| <span class="source-line-no">356</span><span id="line-356"> lzmaCodec = buildCodec(conf, this);</span> |
| <span class="source-line-no">357</span><span id="line-357"> LOG.warn("Reloaded configuration for {}", name());</span> |
| <span class="source-line-no">358</span><span id="line-358"> return lzmaCodec;</span> |
| <span class="source-line-no">359</span><span id="line-359"> }</span> |
| <span class="source-line-no">360</span><span id="line-360"> }</span> |
| <span class="source-line-no">361</span><span id="line-361"> },</span> |
| <span class="source-line-no">362</span><span id="line-362"></span> |
| <span class="source-line-no">363</span><span id="line-363"> BROTLI("brotli", BROTLI_CODEC_CLASS_KEY, BROTLI_CODEC_CLASS_DEFAULT) {</span> |
| <span class="source-line-no">364</span><span id="line-364"> // Use base type to avoid compile-time dependencies.</span> |
| <span class="source-line-no">365</span><span id="line-365"> private volatile transient CompressionCodec brotliCodec;</span> |
| <span class="source-line-no">366</span><span id="line-366"> private final transient Object lock = new Object();</span> |
| <span class="source-line-no">367</span><span id="line-367"></span> |
| <span class="source-line-no">368</span><span id="line-368"> @Override</span> |
| <span class="source-line-no">369</span><span id="line-369"> CompressionCodec getCodec(Configuration conf) {</span> |
| <span class="source-line-no">370</span><span id="line-370"> if (brotliCodec == null) {</span> |
| <span class="source-line-no">371</span><span id="line-371"> synchronized (lock) {</span> |
| <span class="source-line-no">372</span><span id="line-372"> if (brotliCodec == null) {</span> |
| <span class="source-line-no">373</span><span id="line-373"> brotliCodec = buildCodec(conf, this);</span> |
| <span class="source-line-no">374</span><span id="line-374"> }</span> |
| <span class="source-line-no">375</span><span id="line-375"> }</span> |
| <span class="source-line-no">376</span><span id="line-376"> }</span> |
| <span class="source-line-no">377</span><span id="line-377"> return brotliCodec;</span> |
| <span class="source-line-no">378</span><span id="line-378"> }</span> |
| <span class="source-line-no">379</span><span id="line-379"></span> |
| <span class="source-line-no">380</span><span id="line-380"> @Override</span> |
| <span class="source-line-no">381</span><span id="line-381"> public CompressionCodec reload(Configuration conf) {</span> |
| <span class="source-line-no">382</span><span id="line-382"> synchronized (lock) {</span> |
| <span class="source-line-no">383</span><span id="line-383"> brotliCodec = buildCodec(conf, this);</span> |
| <span class="source-line-no">384</span><span id="line-384"> LOG.warn("Reloaded configuration for {}", name());</span> |
| <span class="source-line-no">385</span><span id="line-385"> return brotliCodec;</span> |
| <span class="source-line-no">386</span><span id="line-386"> }</span> |
| <span class="source-line-no">387</span><span id="line-387"> }</span> |
| <span class="source-line-no">388</span><span id="line-388"> };</span> |
| <span class="source-line-no">389</span><span id="line-389"></span> |
| <span class="source-line-no">390</span><span id="line-390"> private final Configuration conf;</span> |
| <span class="source-line-no">391</span><span id="line-391"> private final String compressName;</span> |
| <span class="source-line-no">392</span><span id="line-392"> private final String confKey;</span> |
| <span class="source-line-no">393</span><span id="line-393"> private final String confDefault;</span> |
| <span class="source-line-no">394</span><span id="line-394"> /** data input buffer size to absorb small reads from application. */</span> |
| <span class="source-line-no">395</span><span id="line-395"> private static final int DATA_IBUF_SIZE = 1 * 1024;</span> |
| <span class="source-line-no">396</span><span id="line-396"> /** data output buffer size to absorb small writes from application. */</span> |
| <span class="source-line-no">397</span><span id="line-397"> private static final int DATA_OBUF_SIZE = 4 * 1024;</span> |
| <span class="source-line-no">398</span><span id="line-398"></span> |
| <span class="source-line-no">399</span><span id="line-399"> Algorithm(String name, String confKey, String confDefault) {</span> |
| <span class="source-line-no">400</span><span id="line-400"> this.conf = HBaseConfiguration.create();</span> |
| <span class="source-line-no">401</span><span id="line-401"> this.conf.setBoolean("io.native.lib.available", true);</span> |
| <span class="source-line-no">402</span><span id="line-402"> this.compressName = name;</span> |
| <span class="source-line-no">403</span><span id="line-403"> this.confKey = confKey;</span> |
| <span class="source-line-no">404</span><span id="line-404"> this.confDefault = confDefault;</span> |
| <span class="source-line-no">405</span><span id="line-405"> }</span> |
| <span class="source-line-no">406</span><span id="line-406"></span> |
| <span class="source-line-no">407</span><span id="line-407"> abstract CompressionCodec getCodec(Configuration conf);</span> |
| <span class="source-line-no">408</span><span id="line-408"></span> |
| <span class="source-line-no">409</span><span id="line-409"> /**</span> |
| <span class="source-line-no">410</span><span id="line-410"> * Reload configuration for the given algorithm.</span> |
| <span class="source-line-no">411</span><span id="line-411"> * <p></span> |
| <span class="source-line-no">412</span><span id="line-412"> * NOTE: Experts only. This can only be done safely during process startup, before the</span> |
| <span class="source-line-no">413</span><span id="line-413"> * algorithm's codecs are in use. If the codec implementation is changed, the new implementation</span> |
| <span class="source-line-no">414</span><span id="line-414"> * may not be fully compatible with what was loaded at static initialization time, leading to</span> |
| <span class="source-line-no">415</span><span id="line-415"> * potential data corruption. Mostly used by unit tests.</span> |
| <span class="source-line-no">416</span><span id="line-416"> * @param conf configuration</span> |
| <span class="source-line-no">417</span><span id="line-417"> */</span> |
| <span class="source-line-no">418</span><span id="line-418"> public abstract CompressionCodec reload(Configuration conf);</span> |
| <span class="source-line-no">419</span><span id="line-419"></span> |
| <span class="source-line-no">420</span><span id="line-420"> public InputStream createDecompressionStream(InputStream downStream, Decompressor decompressor,</span> |
| <span class="source-line-no">421</span><span id="line-421"> int downStreamBufferSize) throws IOException {</span> |
| <span class="source-line-no">422</span><span id="line-422"> CompressionCodec codec = getCodec(conf);</span> |
| <span class="source-line-no">423</span><span id="line-423"> // Set the internal buffer size to read from down stream.</span> |
| <span class="source-line-no">424</span><span id="line-424"> if (downStreamBufferSize > 0) {</span> |
| <span class="source-line-no">425</span><span id="line-425"> ((Configurable) codec).getConf().setInt("io.file.buffer.size", downStreamBufferSize);</span> |
| <span class="source-line-no">426</span><span id="line-426"> }</span> |
| <span class="source-line-no">427</span><span id="line-427"> CompressionInputStream cis = codec.createInputStream(downStream, decompressor);</span> |
| <span class="source-line-no">428</span><span id="line-428"> BufferedInputStream bis2 = new BufferedInputStream(cis, DATA_IBUF_SIZE);</span> |
| <span class="source-line-no">429</span><span id="line-429"> return bis2;</span> |
| <span class="source-line-no">430</span><span id="line-430"></span> |
| <span class="source-line-no">431</span><span id="line-431"> }</span> |
| <span class="source-line-no">432</span><span id="line-432"></span> |
| <span class="source-line-no">433</span><span id="line-433"> public OutputStream createCompressionStream(OutputStream downStream, Compressor compressor,</span> |
| <span class="source-line-no">434</span><span id="line-434"> int downStreamBufferSize) throws IOException {</span> |
| <span class="source-line-no">435</span><span id="line-435"> OutputStream bos1 = null;</span> |
| <span class="source-line-no">436</span><span id="line-436"> if (downStreamBufferSize > 0) {</span> |
| <span class="source-line-no">437</span><span id="line-437"> bos1 = new BufferedOutputStream(downStream, downStreamBufferSize);</span> |
| <span class="source-line-no">438</span><span id="line-438"> } else {</span> |
| <span class="source-line-no">439</span><span id="line-439"> bos1 = downStream;</span> |
| <span class="source-line-no">440</span><span id="line-440"> }</span> |
| <span class="source-line-no">441</span><span id="line-441"> CompressionOutputStream cos = createPlainCompressionStream(bos1, compressor);</span> |
| <span class="source-line-no">442</span><span id="line-442"> BufferedOutputStream bos2 =</span> |
| <span class="source-line-no">443</span><span id="line-443"> new BufferedOutputStream(new FinishOnFlushCompressionStream(cos), DATA_OBUF_SIZE);</span> |
| <span class="source-line-no">444</span><span id="line-444"> return bos2;</span> |
| <span class="source-line-no">445</span><span id="line-445"> }</span> |
| <span class="source-line-no">446</span><span id="line-446"></span> |
| <span class="source-line-no">447</span><span id="line-447"> /**</span> |
| <span class="source-line-no">448</span><span id="line-448"> * Creates a compression stream without any additional wrapping into buffering streams.</span> |
| <span class="source-line-no">449</span><span id="line-449"> */</span> |
| <span class="source-line-no">450</span><span id="line-450"> public CompressionOutputStream createPlainCompressionStream(OutputStream downStream,</span> |
| <span class="source-line-no">451</span><span id="line-451"> Compressor compressor) throws IOException {</span> |
| <span class="source-line-no">452</span><span id="line-452"> CompressionCodec codec = getCodec(conf);</span> |
| <span class="source-line-no">453</span><span id="line-453"> ((Configurable) codec).getConf().setInt("io.file.buffer.size", 32 * 1024);</span> |
| <span class="source-line-no">454</span><span id="line-454"> return codec.createOutputStream(downStream, compressor);</span> |
| <span class="source-line-no">455</span><span id="line-455"> }</span> |
| <span class="source-line-no">456</span><span id="line-456"></span> |
| <span class="source-line-no">457</span><span id="line-457"> public Compressor getCompressor() {</span> |
| <span class="source-line-no">458</span><span id="line-458"> CompressionCodec codec = getCodec(conf);</span> |
| <span class="source-line-no">459</span><span id="line-459"> if (codec != null) {</span> |
| <span class="source-line-no">460</span><span id="line-460"> Compressor compressor = CodecPool.getCompressor(codec);</span> |
| <span class="source-line-no">461</span><span id="line-461"> if (LOG.isTraceEnabled()) LOG.trace("Retrieved compressor " + compressor + " from pool.");</span> |
| <span class="source-line-no">462</span><span id="line-462"> if (compressor != null) {</span> |
| <span class="source-line-no">463</span><span id="line-463"> if (compressor.finished()) {</span> |
| <span class="source-line-no">464</span><span id="line-464"> // Somebody returns the compressor to CodecPool but is still using it.</span> |
| <span class="source-line-no">465</span><span id="line-465"> LOG.warn("Compressor obtained from CodecPool is already finished()");</span> |
| <span class="source-line-no">466</span><span id="line-466"> }</span> |
| <span class="source-line-no">467</span><span id="line-467"> compressor.reset();</span> |
| <span class="source-line-no">468</span><span id="line-468"> }</span> |
| <span class="source-line-no">469</span><span id="line-469"> return compressor;</span> |
| <span class="source-line-no">470</span><span id="line-470"> }</span> |
| <span class="source-line-no">471</span><span id="line-471"> return null;</span> |
| <span class="source-line-no">472</span><span id="line-472"> }</span> |
| <span class="source-line-no">473</span><span id="line-473"></span> |
| <span class="source-line-no">474</span><span id="line-474"> public void returnCompressor(Compressor compressor) {</span> |
| <span class="source-line-no">475</span><span id="line-475"> if (compressor != null) {</span> |
| <span class="source-line-no">476</span><span id="line-476"> if (LOG.isTraceEnabled()) LOG.trace("Returning compressor " + compressor + " to pool.");</span> |
| <span class="source-line-no">477</span><span id="line-477"> CodecPool.returnCompressor(compressor);</span> |
| <span class="source-line-no">478</span><span id="line-478"> }</span> |
| <span class="source-line-no">479</span><span id="line-479"> }</span> |
| <span class="source-line-no">480</span><span id="line-480"></span> |
| <span class="source-line-no">481</span><span id="line-481"> public Decompressor getDecompressor() {</span> |
| <span class="source-line-no">482</span><span id="line-482"> CompressionCodec codec = getCodec(conf);</span> |
| <span class="source-line-no">483</span><span id="line-483"> if (codec != null) {</span> |
| <span class="source-line-no">484</span><span id="line-484"> Decompressor decompressor = CodecPool.getDecompressor(codec);</span> |
| <span class="source-line-no">485</span><span id="line-485"> if (LOG.isTraceEnabled())</span> |
| <span class="source-line-no">486</span><span id="line-486"> LOG.trace("Retrieved decompressor " + decompressor + " from pool.");</span> |
| <span class="source-line-no">487</span><span id="line-487"> if (decompressor != null) {</span> |
| <span class="source-line-no">488</span><span id="line-488"> if (decompressor.finished()) {</span> |
| <span class="source-line-no">489</span><span id="line-489"> // Somebody returns the decompressor to CodecPool but is still using it.</span> |
| <span class="source-line-no">490</span><span id="line-490"> LOG.warn("Decompressor {} obtained from CodecPool is already finished", decompressor);</span> |
| <span class="source-line-no">491</span><span id="line-491"> }</span> |
| <span class="source-line-no">492</span><span id="line-492"> decompressor.reset();</span> |
| <span class="source-line-no">493</span><span id="line-493"> }</span> |
| <span class="source-line-no">494</span><span id="line-494"> return decompressor;</span> |
| <span class="source-line-no">495</span><span id="line-495"> }</span> |
| <span class="source-line-no">496</span><span id="line-496"></span> |
| <span class="source-line-no">497</span><span id="line-497"> return null;</span> |
| <span class="source-line-no">498</span><span id="line-498"> }</span> |
| <span class="source-line-no">499</span><span id="line-499"></span> |
| <span class="source-line-no">500</span><span id="line-500"> public void returnDecompressor(Decompressor decompressor) {</span> |
| <span class="source-line-no">501</span><span id="line-501"> if (decompressor != null) {</span> |
| <span class="source-line-no">502</span><span id="line-502"> if (LOG.isTraceEnabled()) LOG.trace("Returning decompressor " + decompressor + " to pool.");</span> |
| <span class="source-line-no">503</span><span id="line-503"> CodecPool.returnDecompressor(decompressor);</span> |
| <span class="source-line-no">504</span><span id="line-504"> if (decompressor.getClass().isAnnotationPresent(DoNotPool.class)) {</span> |
| <span class="source-line-no">505</span><span id="line-505"> if (LOG.isTraceEnabled()) LOG.trace("Ending decompressor " + decompressor);</span> |
| <span class="source-line-no">506</span><span id="line-506"> decompressor.end();</span> |
| <span class="source-line-no">507</span><span id="line-507"> }</span> |
| <span class="source-line-no">508</span><span id="line-508"> }</span> |
| <span class="source-line-no">509</span><span id="line-509"> }</span> |
| <span class="source-line-no">510</span><span id="line-510"></span> |
| <span class="source-line-no">511</span><span id="line-511"> public String getName() {</span> |
| <span class="source-line-no">512</span><span id="line-512"> return compressName;</span> |
| <span class="source-line-no">513</span><span id="line-513"> }</span> |
| <span class="source-line-no">514</span><span id="line-514"> }</span> |
| <span class="source-line-no">515</span><span id="line-515"></span> |
| <span class="source-line-no">516</span><span id="line-516"> public static Algorithm getCompressionAlgorithmByName(String compressName) {</span> |
| <span class="source-line-no">517</span><span id="line-517"> Algorithm[] algos = Algorithm.class.getEnumConstants();</span> |
| <span class="source-line-no">518</span><span id="line-518"></span> |
| <span class="source-line-no">519</span><span id="line-519"> for (Algorithm a : algos) {</span> |
| <span class="source-line-no">520</span><span id="line-520"> if (a.getName().equals(compressName)) {</span> |
| <span class="source-line-no">521</span><span id="line-521"> return a;</span> |
| <span class="source-line-no">522</span><span id="line-522"> }</span> |
| <span class="source-line-no">523</span><span id="line-523"> }</span> |
| <span class="source-line-no">524</span><span id="line-524"></span> |
| <span class="source-line-no">525</span><span id="line-525"> throw new IllegalArgumentException("Unsupported compression algorithm name: " + compressName);</span> |
| <span class="source-line-no">526</span><span id="line-526"> }</span> |
| <span class="source-line-no">527</span><span id="line-527"></span> |
| <span class="source-line-no">528</span><span id="line-528"> /**</span> |
| <span class="source-line-no">529</span><span id="line-529"> * Get names of supported compression algorithms.</span> |
| <span class="source-line-no">530</span><span id="line-530"> * @return Array of strings, each represents a supported compression algorithm. Currently, the</span> |
| <span class="source-line-no">531</span><span id="line-531"> * following compression algorithms are supported.</span> |
| <span class="source-line-no">532</span><span id="line-532"> */</span> |
| <span class="source-line-no">533</span><span id="line-533"> public static String[] getSupportedAlgorithms() {</span> |
| <span class="source-line-no">534</span><span id="line-534"> Algorithm[] algos = Algorithm.class.getEnumConstants();</span> |
| <span class="source-line-no">535</span><span id="line-535"></span> |
| <span class="source-line-no">536</span><span id="line-536"> String[] ret = new String[algos.length];</span> |
| <span class="source-line-no">537</span><span id="line-537"> int i = 0;</span> |
| <span class="source-line-no">538</span><span id="line-538"> for (Algorithm a : algos) {</span> |
| <span class="source-line-no">539</span><span id="line-539"> ret[i++] = a.getName();</span> |
| <span class="source-line-no">540</span><span id="line-540"> }</span> |
| <span class="source-line-no">541</span><span id="line-541"></span> |
| <span class="source-line-no">542</span><span id="line-542"> return ret;</span> |
| <span class="source-line-no">543</span><span id="line-543"> }</span> |
| <span class="source-line-no">544</span><span id="line-544"></span> |
| <span class="source-line-no">545</span><span id="line-545"> /**</span> |
| <span class="source-line-no">546</span><span id="line-546"> * Load a codec implementation for an algorithm using the supplied configuration.</span> |
| <span class="source-line-no">547</span><span id="line-547"> * @param conf the configuration to use</span> |
| <span class="source-line-no">548</span><span id="line-548"> * @param algo the algorithm to implement</span> |
| <span class="source-line-no">549</span><span id="line-549"> */</span> |
| <span class="source-line-no">550</span><span id="line-550"> private static CompressionCodec buildCodec(final Configuration conf, final Algorithm algo) {</span> |
| <span class="source-line-no">551</span><span id="line-551"> try {</span> |
| <span class="source-line-no">552</span><span id="line-552"> String codecClassName = conf.get(algo.confKey, algo.confDefault);</span> |
| <span class="source-line-no">553</span><span id="line-553"> if (codecClassName == null) {</span> |
| <span class="source-line-no">554</span><span id="line-554"> throw new RuntimeException("No codec configured for " + algo.confKey);</span> |
| <span class="source-line-no">555</span><span id="line-555"> }</span> |
| <span class="source-line-no">556</span><span id="line-556"> Class<?> codecClass = getClassLoaderForCodec().loadClass(codecClassName);</span> |
| <span class="source-line-no">557</span><span id="line-557"> // The class is from hadoop so we use hadoop's ReflectionUtils to create it</span> |
| <span class="source-line-no">558</span><span id="line-558"> CompressionCodec codec =</span> |
| <span class="source-line-no">559</span><span id="line-559"> (CompressionCodec) ReflectionUtils.newInstance(codecClass, new Configuration(conf));</span> |
| <span class="source-line-no">560</span><span id="line-560"> LOG.info("Loaded codec {} for compression algorithm {}", codec.getClass().getCanonicalName(),</span> |
| <span class="source-line-no">561</span><span id="line-561"> algo.name());</span> |
| <span class="source-line-no">562</span><span id="line-562"> return codec;</span> |
| <span class="source-line-no">563</span><span id="line-563"> } catch (ClassNotFoundException e) {</span> |
| <span class="source-line-no">564</span><span id="line-564"> throw new RuntimeException(e);</span> |
| <span class="source-line-no">565</span><span id="line-565"> }</span> |
| <span class="source-line-no">566</span><span id="line-566"> }</span> |
| <span class="source-line-no">567</span><span id="line-567"></span> |
| <span class="source-line-no">568</span><span id="line-568"> public static void main(String[] args) throws Exception {</span> |
| <span class="source-line-no">569</span><span id="line-569"> Configuration conf = HBaseConfiguration.create();</span> |
| <span class="source-line-no">570</span><span id="line-570"> java.util.Map<String, CompressionCodec> implMap = new java.util.HashMap<>();</span> |
| <span class="source-line-no">571</span><span id="line-571"> for (Algorithm algo : Algorithm.class.getEnumConstants()) {</span> |
| <span class="source-line-no">572</span><span id="line-572"> try {</span> |
| <span class="source-line-no">573</span><span id="line-573"> implMap.put(algo.name(), algo.getCodec(conf));</span> |
| <span class="source-line-no">574</span><span id="line-574"> } catch (Exception e) {</span> |
| <span class="source-line-no">575</span><span id="line-575"> // Ignore failures to load codec native implementations while building the report.</span> |
| <span class="source-line-no">576</span><span id="line-576"> // We are to report what is configured.</span> |
| <span class="source-line-no">577</span><span id="line-577"> }</span> |
| <span class="source-line-no">578</span><span id="line-578"> }</span> |
| <span class="source-line-no">579</span><span id="line-579"> for (Algorithm algo : Algorithm.class.getEnumConstants()) {</span> |
| <span class="source-line-no">580</span><span id="line-580"> System.out.println(algo.name() + ":");</span> |
| <span class="source-line-no">581</span><span id="line-581"> System.out.println(" name: " + algo.getName());</span> |
| <span class="source-line-no">582</span><span id="line-582"> System.out.println(" confKey: " + algo.confKey);</span> |
| <span class="source-line-no">583</span><span id="line-583"> System.out.println(" confDefault: " + algo.confDefault);</span> |
| <span class="source-line-no">584</span><span id="line-584"> CompressionCodec codec = implMap.get(algo.name());</span> |
| <span class="source-line-no">585</span><span id="line-585"> System.out.println(</span> |
| <span class="source-line-no">586</span><span id="line-586"> " implClass: " + (codec != null ? codec.getClass().getCanonicalName() : "<none>"));</span> |
| <span class="source-line-no">587</span><span id="line-587"> }</span> |
| <span class="source-line-no">588</span><span id="line-588"> }</span> |
| <span class="source-line-no">589</span><span id="line-589"></span> |
| <span class="source-line-no">590</span><span id="line-590">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
