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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,<a name="line.12"></a>
<span class="sourceLineNo">013</span> * software distributed under the License is distributed on an<a name="line.13"></a>
<span class="sourceLineNo">014</span> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.14"></a>
<span class="sourceLineNo">015</span> * KIND, either express or implied. See the License for the<a name="line.15"></a>
<span class="sourceLineNo">016</span> * specific language governing permissions and limitations<a name="line.16"></a>
<span class="sourceLineNo">017</span> * under the License.<a name="line.17"></a>
<span class="sourceLineNo">018</span> */<a name="line.18"></a>
<span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.mapreduce;<a name="line.19"></a>
<span class="sourceLineNo">020</span><a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.io.BufferedOutputStream;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.io.File;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.io.FileInputStream;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import java.io.FileOutputStream;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import java.io.IOException;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import java.io.InputStream;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import java.net.URL;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import java.net.URLDecoder;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import java.text.MessageFormat;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import java.util.Enumeration;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import java.util.jar.JarFile;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import java.util.jar.JarOutputStream;<a name="line.32"></a>
<span class="sourceLineNo">033</span>import java.util.jar.Manifest;<a name="line.33"></a>
<span class="sourceLineNo">034</span>import java.util.zip.ZipEntry;<a name="line.34"></a>
<span class="sourceLineNo">035</span>import java.util.zip.ZipOutputStream;<a name="line.35"></a>
<span class="sourceLineNo">036</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.36"></a>
<span class="sourceLineNo">037</span><a name="line.37"></a>
<span class="sourceLineNo">038</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.38"></a>
<span class="sourceLineNo">039</span><a name="line.39"></a>
<span class="sourceLineNo">040</span>/**<a name="line.40"></a>
<span class="sourceLineNo">041</span> * Finds the Jar for a class. If the class is in a directory in the<a name="line.41"></a>
<span class="sourceLineNo">042</span> * classpath, it creates a Jar on the fly with the contents of the directory<a name="line.42"></a>
<span class="sourceLineNo">043</span> * and returns the path to that Jar. If a Jar is created, it is created in<a name="line.43"></a>
<span class="sourceLineNo">044</span> * the system temporary directory.<a name="line.44"></a>
<span class="sourceLineNo">045</span> *<a name="line.45"></a>
<span class="sourceLineNo">046</span> * This file was forked from hadoop/common/branches/branch-2@1377176.<a name="line.46"></a>
<span class="sourceLineNo">047</span> */<a name="line.47"></a>
<span class="sourceLineNo">048</span>@InterfaceAudience.Private<a name="line.48"></a>
<span class="sourceLineNo">049</span>public final class JarFinder {<a name="line.49"></a>
<span class="sourceLineNo">050</span><a name="line.50"></a>
<span class="sourceLineNo">051</span> private static void copyToZipStream(File file, ZipEntry entry,<a name="line.51"></a>
<span class="sourceLineNo">052</span> ZipOutputStream zos) throws IOException {<a name="line.52"></a>
<span class="sourceLineNo">053</span> InputStream is = new FileInputStream(file);<a name="line.53"></a>
<span class="sourceLineNo">054</span> try {<a name="line.54"></a>
<span class="sourceLineNo">055</span> zos.putNextEntry(entry);<a name="line.55"></a>
<span class="sourceLineNo">056</span> byte[] arr = new byte[4096];<a name="line.56"></a>
<span class="sourceLineNo">057</span> int read = is.read(arr);<a name="line.57"></a>
<span class="sourceLineNo">058</span> while (read &gt; -1) {<a name="line.58"></a>
<span class="sourceLineNo">059</span> zos.write(arr, 0, read);<a name="line.59"></a>
<span class="sourceLineNo">060</span> read = is.read(arr);<a name="line.60"></a>
<span class="sourceLineNo">061</span> }<a name="line.61"></a>
<span class="sourceLineNo">062</span> } finally {<a name="line.62"></a>
<span class="sourceLineNo">063</span> try {<a name="line.63"></a>
<span class="sourceLineNo">064</span> is.close();<a name="line.64"></a>
<span class="sourceLineNo">065</span> } finally {<a name="line.65"></a>
<span class="sourceLineNo">066</span> zos.closeEntry();<a name="line.66"></a>
<span class="sourceLineNo">067</span> }<a name="line.67"></a>
<span class="sourceLineNo">068</span> }<a name="line.68"></a>
<span class="sourceLineNo">069</span> }<a name="line.69"></a>
<span class="sourceLineNo">070</span><a name="line.70"></a>
<span class="sourceLineNo">071</span> public static void jarDir(File dir, String relativePath, ZipOutputStream zos)<a name="line.71"></a>
<span class="sourceLineNo">072</span> throws IOException {<a name="line.72"></a>
<span class="sourceLineNo">073</span> Preconditions.checkNotNull(relativePath, "relativePath");<a name="line.73"></a>
<span class="sourceLineNo">074</span> Preconditions.checkNotNull(zos, "zos");<a name="line.74"></a>
<span class="sourceLineNo">075</span><a name="line.75"></a>
<span class="sourceLineNo">076</span> // by JAR spec, if there is a manifest, it must be the first entry in the<a name="line.76"></a>
<span class="sourceLineNo">077</span> // ZIP.<a name="line.77"></a>
<span class="sourceLineNo">078</span> File manifestFile = new File(dir, JarFile.MANIFEST_NAME);<a name="line.78"></a>
<span class="sourceLineNo">079</span> ZipEntry manifestEntry = new ZipEntry(JarFile.MANIFEST_NAME);<a name="line.79"></a>
<span class="sourceLineNo">080</span> if (!manifestFile.exists()) {<a name="line.80"></a>
<span class="sourceLineNo">081</span> zos.putNextEntry(manifestEntry);<a name="line.81"></a>
<span class="sourceLineNo">082</span> new Manifest().write(new BufferedOutputStream(zos));<a name="line.82"></a>
<span class="sourceLineNo">083</span> zos.closeEntry();<a name="line.83"></a>
<span class="sourceLineNo">084</span> } else {<a name="line.84"></a>
<span class="sourceLineNo">085</span> copyToZipStream(manifestFile, manifestEntry, zos);<a name="line.85"></a>
<span class="sourceLineNo">086</span> }<a name="line.86"></a>
<span class="sourceLineNo">087</span> zos.closeEntry();<a name="line.87"></a>
<span class="sourceLineNo">088</span> zipDir(dir, relativePath, zos, true);<a name="line.88"></a>
<span class="sourceLineNo">089</span> zos.close();<a name="line.89"></a>
<span class="sourceLineNo">090</span> }<a name="line.90"></a>
<span class="sourceLineNo">091</span><a name="line.91"></a>
<span class="sourceLineNo">092</span> private static void zipDir(File dir, String relativePath, ZipOutputStream zos,<a name="line.92"></a>
<span class="sourceLineNo">093</span> boolean start) throws IOException {<a name="line.93"></a>
<span class="sourceLineNo">094</span> String[] dirList = dir.list();<a name="line.94"></a>
<span class="sourceLineNo">095</span> if (dirList == null) {<a name="line.95"></a>
<span class="sourceLineNo">096</span> return;<a name="line.96"></a>
<span class="sourceLineNo">097</span> }<a name="line.97"></a>
<span class="sourceLineNo">098</span> for (String aDirList : dirList) {<a name="line.98"></a>
<span class="sourceLineNo">099</span> File f = new File(dir, aDirList);<a name="line.99"></a>
<span class="sourceLineNo">100</span> if (!f.isHidden()) {<a name="line.100"></a>
<span class="sourceLineNo">101</span> if (f.isDirectory()) {<a name="line.101"></a>
<span class="sourceLineNo">102</span> if (!start) {<a name="line.102"></a>
<span class="sourceLineNo">103</span> ZipEntry dirEntry = new ZipEntry(relativePath + f.getName() + "/");<a name="line.103"></a>
<span class="sourceLineNo">104</span> zos.putNextEntry(dirEntry);<a name="line.104"></a>
<span class="sourceLineNo">105</span> zos.closeEntry();<a name="line.105"></a>
<span class="sourceLineNo">106</span> }<a name="line.106"></a>
<span class="sourceLineNo">107</span> String filePath = f.getPath();<a name="line.107"></a>
<span class="sourceLineNo">108</span> File file = new File(filePath);<a name="line.108"></a>
<span class="sourceLineNo">109</span> zipDir(file, relativePath + f.getName() + "/", zos, false);<a name="line.109"></a>
<span class="sourceLineNo">110</span> }<a name="line.110"></a>
<span class="sourceLineNo">111</span> else {<a name="line.111"></a>
<span class="sourceLineNo">112</span> String path = relativePath + f.getName();<a name="line.112"></a>
<span class="sourceLineNo">113</span> if (!path.equals(JarFile.MANIFEST_NAME)) {<a name="line.113"></a>
<span class="sourceLineNo">114</span> ZipEntry anEntry = new ZipEntry(path);<a name="line.114"></a>
<span class="sourceLineNo">115</span> copyToZipStream(f, anEntry, zos);<a name="line.115"></a>
<span class="sourceLineNo">116</span> }<a name="line.116"></a>
<span class="sourceLineNo">117</span> }<a name="line.117"></a>
<span class="sourceLineNo">118</span> }<a name="line.118"></a>
<span class="sourceLineNo">119</span> }<a name="line.119"></a>
<span class="sourceLineNo">120</span> }<a name="line.120"></a>
<span class="sourceLineNo">121</span><a name="line.121"></a>
<span class="sourceLineNo">122</span> private static void createJar(File dir, File jarFile) throws IOException {<a name="line.122"></a>
<span class="sourceLineNo">123</span> Preconditions.checkNotNull(dir, "dir");<a name="line.123"></a>
<span class="sourceLineNo">124</span> Preconditions.checkNotNull(jarFile, "jarFile");<a name="line.124"></a>
<span class="sourceLineNo">125</span> File jarDir = jarFile.getParentFile();<a name="line.125"></a>
<span class="sourceLineNo">126</span> if (!jarDir.exists()) {<a name="line.126"></a>
<span class="sourceLineNo">127</span> if (!jarDir.mkdirs()) {<a name="line.127"></a>
<span class="sourceLineNo">128</span> throw new IOException(MessageFormat.format("could not create dir [{0}]",<a name="line.128"></a>
<span class="sourceLineNo">129</span> jarDir));<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> try (FileOutputStream fos = new FileOutputStream(jarFile);<a name="line.132"></a>
<span class="sourceLineNo">133</span> JarOutputStream jos = new JarOutputStream(fos)) {<a name="line.133"></a>
<span class="sourceLineNo">134</span> jarDir(dir, "", jos);<a name="line.134"></a>
<span class="sourceLineNo">135</span> }<a name="line.135"></a>
<span class="sourceLineNo">136</span> }<a name="line.136"></a>
<span class="sourceLineNo">137</span><a name="line.137"></a>
<span class="sourceLineNo">138</span> /**<a name="line.138"></a>
<span class="sourceLineNo">139</span> * Returns the full path to the Jar containing the class. It always return a<a name="line.139"></a>
<span class="sourceLineNo">140</span> * JAR.<a name="line.140"></a>
<span class="sourceLineNo">141</span> *<a name="line.141"></a>
<span class="sourceLineNo">142</span> * @param klass class.<a name="line.142"></a>
<span class="sourceLineNo">143</span> *<a name="line.143"></a>
<span class="sourceLineNo">144</span> * @return path to the Jar containing the class.<a name="line.144"></a>
<span class="sourceLineNo">145</span> */<a name="line.145"></a>
<span class="sourceLineNo">146</span> public static String getJar(Class klass) {<a name="line.146"></a>
<span class="sourceLineNo">147</span> Preconditions.checkNotNull(klass, "klass");<a name="line.147"></a>
<span class="sourceLineNo">148</span> ClassLoader loader = klass.getClassLoader();<a name="line.148"></a>
<span class="sourceLineNo">149</span> if (loader != null) {<a name="line.149"></a>
<span class="sourceLineNo">150</span> String class_file = klass.getName().replaceAll("\\.", "/") + ".class";<a name="line.150"></a>
<span class="sourceLineNo">151</span> try {<a name="line.151"></a>
<span class="sourceLineNo">152</span> for (Enumeration itr = loader.getResources(class_file);<a name="line.152"></a>
<span class="sourceLineNo">153</span> itr.hasMoreElements(); ) {<a name="line.153"></a>
<span class="sourceLineNo">154</span> URL url = (URL) itr.nextElement();<a name="line.154"></a>
<span class="sourceLineNo">155</span> String path = url.getPath();<a name="line.155"></a>
<span class="sourceLineNo">156</span> if (path.startsWith("file:")) {<a name="line.156"></a>
<span class="sourceLineNo">157</span> path = path.substring("file:".length());<a name="line.157"></a>
<span class="sourceLineNo">158</span> }<a name="line.158"></a>
<span class="sourceLineNo">159</span> path = URLDecoder.decode(path, "UTF-8");<a name="line.159"></a>
<span class="sourceLineNo">160</span> if ("jar".equals(url.getProtocol())) {<a name="line.160"></a>
<span class="sourceLineNo">161</span> path = URLDecoder.decode(path, "UTF-8");<a name="line.161"></a>
<span class="sourceLineNo">162</span> return path.replaceAll("!.*$", "");<a name="line.162"></a>
<span class="sourceLineNo">163</span> }<a name="line.163"></a>
<span class="sourceLineNo">164</span> else if ("file".equals(url.getProtocol())) {<a name="line.164"></a>
<span class="sourceLineNo">165</span> String klassName = klass.getName();<a name="line.165"></a>
<span class="sourceLineNo">166</span> klassName = klassName.replace(".", "/") + ".class";<a name="line.166"></a>
<span class="sourceLineNo">167</span> path = path.substring(0, path.length() - klassName.length());<a name="line.167"></a>
<span class="sourceLineNo">168</span> File baseDir = new File(path);<a name="line.168"></a>
<span class="sourceLineNo">169</span> File testDir = new File(System.getProperty("test.build.dir", "target/test-dir"));<a name="line.169"></a>
<span class="sourceLineNo">170</span> testDir = testDir.getAbsoluteFile();<a name="line.170"></a>
<span class="sourceLineNo">171</span> if (!testDir.exists()) {<a name="line.171"></a>
<span class="sourceLineNo">172</span> testDir.mkdirs();<a name="line.172"></a>
<span class="sourceLineNo">173</span> }<a name="line.173"></a>
<span class="sourceLineNo">174</span> File tempJar = File.createTempFile("hadoop-", "", testDir);<a name="line.174"></a>
<span class="sourceLineNo">175</span> tempJar = new File(tempJar.getAbsolutePath() + ".jar");<a name="line.175"></a>
<span class="sourceLineNo">176</span> tempJar.deleteOnExit();<a name="line.176"></a>
<span class="sourceLineNo">177</span> createJar(baseDir, tempJar);<a name="line.177"></a>
<span class="sourceLineNo">178</span> return tempJar.getAbsolutePath();<a name="line.178"></a>
<span class="sourceLineNo">179</span> }<a name="line.179"></a>
<span class="sourceLineNo">180</span> }<a name="line.180"></a>
<span class="sourceLineNo">181</span> }<a name="line.181"></a>
<span class="sourceLineNo">182</span> catch (IOException e) {<a name="line.182"></a>
<span class="sourceLineNo">183</span> throw new RuntimeException(e);<a name="line.183"></a>
<span class="sourceLineNo">184</span> }<a name="line.184"></a>
<span class="sourceLineNo">185</span> }<a name="line.185"></a>
<span class="sourceLineNo">186</span> return null;<a name="line.186"></a>
<span class="sourceLineNo">187</span> }<a name="line.187"></a>
<span class="sourceLineNo">188</span><a name="line.188"></a>
<span class="sourceLineNo">189</span> private JarFinder() {}<a name="line.189"></a>
<span class="sourceLineNo">190</span>}<a name="line.190"></a>
</pre>
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