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| <pre><span class="sourceLineNo">001</span>package org.apache.archiva.repository.storage;<a name="line.1"></a> |
| <span class="sourceLineNo">002</span><a name="line.2"></a> |
| <span class="sourceLineNo">003</span>/*<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * or more contributor license agreements. See the NOTICE file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * distributed with this work for additional information<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * regarding copyright ownership. The ASF licenses this file<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * to you under the Apache License, Version 2.0 (the<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> * "License"); you may not use this file except in compliance<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * with the License. You may obtain a copy of the License at<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> *<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * Unless required by applicable law or agreed to in writing,<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * software distributed under the License is distributed on an<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> * KIND, either express or implied. See the License for the<a name="line.17"></a> |
| <span class="sourceLineNo">018</span> * specific language governing permissions and limitations<a name="line.18"></a> |
| <span class="sourceLineNo">019</span> * under the License.<a name="line.19"></a> |
| <span class="sourceLineNo">020</span> */<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import org.apache.archiva.common.filelock.FileLockException;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import org.apache.archiva.common.filelock.FileLockManager;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.archiva.common.filelock.FileLockTimeoutException;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.archiva.common.filelock.Lock;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.commons.lang3.StringUtils;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.slf4j.Logger;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.slf4j.LoggerFactory;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span><a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.io.IOException;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.nio.ByteBuffer;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import java.nio.channels.FileChannel;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import java.nio.channels.ReadableByteChannel;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import java.nio.channels.WritableByteChannel;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import java.nio.file.*;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import java.util.HashSet;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import java.util.function.Consumer;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span><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> * Utility class for assets. Allows to copy, move between different storage instances and<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> * recursively consume the tree.<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> *<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> * @author Martin Stockhammer <martin_s@apache.org><a name="line.44"></a> |
| <span class="sourceLineNo">045</span> */<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>public class StorageUtil<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>{<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> private static final int DEFAULT_BUFFER_SIZE = 4096;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> private static final Logger log = LoggerFactory.getLogger(StorageUtil.class);<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> * Copies the source asset to the target. The assets may be from different RepositoryStorage instances.<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> * If you know that source and asset are from the same storage instance, the copy method of the storage<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> * instance may be faster.<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> *<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * @param source The source asset<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> * @param target The target asset<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> * @param locked If true, a readlock is set on the source and a write lock is set on the target.<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> * @param copyOptions Copy options<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> * @throws IOException<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> */<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> public static final void copyAsset( final StorageAsset source,<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> final StorageAsset target,<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> boolean locked,<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> final CopyOption... copyOptions ) throws IOException<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> {<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> if (source.isFileBased() && target.isFileBased()) {<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> // Short cut for FS operations<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> final Path sourcePath = source.getFilePath();<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> final Path targetPath = target.getFilePath( );<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> if (locked) {<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> final FileLockManager lmSource = ((FilesystemStorage)source.getStorage()).getFileLockManager();<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> final FileLockManager lmTarget = ((FilesystemStorage)target.getStorage()).getFileLockManager();<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> Lock lockRead = null;<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> Lock lockWrite = null;<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> try {<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> lockRead = lmSource.readFileLock(sourcePath);<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> } catch (Exception e) {<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> log.error("Could not create read lock on {}", sourcePath);<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> throw new IOException(e);<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> }<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> try {<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> lockWrite = lmTarget.writeFileLock(targetPath);<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> } catch (Exception e) {<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> log.error("Could not create write lock on {}", targetPath);<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> throw new IOException(e);<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> }<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> try {<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> Files.copy(sourcePath, targetPath, copyOptions);<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> } finally {<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> if (lockRead!=null) {<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> try {<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> lmSource.release(lockRead);<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> } catch (FileLockException e) {<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> log.error("Error during lock release of read lock {}", lockRead.getFile());<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> }<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> }<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> if (lockWrite!=null) {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> try {<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> lmTarget.release(lockWrite);<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> } catch (FileLockException e) {<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> log.error("Error during lock release of write lock {}", lockWrite.getFile());<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> }<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> }<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> }<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> } else<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> {<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> Files.copy( sourcePath, targetPath, copyOptions );<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> }<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> } else {<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> try {<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> final RepositoryStorage sourceStorage = source.getStorage();<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> final RepositoryStorage targetStorage = target.getStorage();<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> sourceStorage.consumeDataFromChannel( source, is -> wrapWriteFunction( is, targetStorage, target, locked ), locked);<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> } catch (IOException e) {<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> throw e;<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> } catch (Throwable e) {<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> Throwable cause = e.getCause();<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> if (cause instanceof IOException) {<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> throw (IOException)cause;<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> } else<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> {<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> throw new IOException( e );<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> }<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> }<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> }<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> }<a name="line.127"></a> |
| <span class="sourceLineNo">128</span><a name="line.128"></a> |
| <span class="sourceLineNo">129</span> /**<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> * Moves a asset between different storage instances.<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> * If you know that source and asset are from the same storage instance, the move method of the storage<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> * instance may be faster.<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> *<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> * @param source The source asset<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> * @param target The target asset<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> * @param locked If true, a lock is used for the move operation.<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> * @param copyOptions Options for copying<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> * @throws IOException If the move fails<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> */<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> public static final void moveAsset(StorageAsset source, StorageAsset target, boolean locked, CopyOption... copyOptions) throws IOException<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> {<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> if (source.isFileBased() && target.isFileBased()) {<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> // Short cut for FS operations<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> // Move is atomic operation<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> if (!Files.exists(target.getFilePath().getParent())) {<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> Files.createDirectories(target.getFilePath().getParent());<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> }<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> Files.move( source.getFilePath(), target.getFilePath(), copyOptions );<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> } else {<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> try {<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> final RepositoryStorage sourceStorage = source.getStorage();<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> final RepositoryStorage targetStorage = target.getStorage();<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> sourceStorage.consumeDataFromChannel( source, is -> wrapWriteFunction( is, targetStorage, target, locked ), locked);<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> sourceStorage.removeAsset( source );<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> } catch (IOException e) {<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> throw e;<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> } catch (Throwable e) {<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> Throwable cause = e.getCause();<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> if (cause instanceof IOException) {<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> throw (IOException)cause;<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> } else<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> {<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> throw new IOException( e );<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> }<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> }<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> }<a name="line.166"></a> |
| <span class="sourceLineNo">167</span><a name="line.167"></a> |
| <span class="sourceLineNo">168</span> }<a name="line.168"></a> |
| <span class="sourceLineNo">169</span><a name="line.169"></a> |
| <span class="sourceLineNo">170</span> private static final void wrapWriteFunction(ReadableByteChannel is, RepositoryStorage targetStorage, StorageAsset target, boolean locked) {<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> try {<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> targetStorage.writeDataToChannel( target, os -> copy(is, os), locked );<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> } catch (Exception e) {<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> throw new RuntimeException( e );<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> }<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> }<a name="line.176"></a> |
| <span class="sourceLineNo">177</span><a name="line.177"></a> |
| <span class="sourceLineNo">178</span><a name="line.178"></a> |
| <span class="sourceLineNo">179</span> private static final void copy( final ReadableByteChannel is, final WritableByteChannel os ) {<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> if (is instanceof FileChannel) {<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> copy( (FileChannel) is, os );<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> } else if (os instanceof FileChannel) {<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> copy(is, (FileChannel)os);<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> } else<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> {<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> try<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> {<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> ByteBuffer buffer = ByteBuffer.allocate( DEFAULT_BUFFER_SIZE );<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> while ( is.read( buffer ) != -1 )<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> {<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> buffer.flip( );<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> while ( buffer.hasRemaining( ) )<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> {<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> os.write( buffer );<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> }<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> buffer.clear( );<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> }<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> }<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> catch ( IOException e )<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> {<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> throw new RuntimeException( e );<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> }<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> }<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> }<a name="line.204"></a> |
| <span class="sourceLineNo">205</span><a name="line.205"></a> |
| <span class="sourceLineNo">206</span> private static final void copy( final FileChannel is, final WritableByteChannel os ) {<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> try<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> {<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> is.transferTo( 0, is.size( ), os );<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> }<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> catch ( IOException e )<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> {<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> throw new RuntimeException( e );<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> }<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> }<a name="line.215"></a> |
| <span class="sourceLineNo">216</span><a name="line.216"></a> |
| <span class="sourceLineNo">217</span> private static final void copy( final ReadableByteChannel is, final FileChannel os ) {<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> try<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> {<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> os.transferFrom( is, 0, Long.MAX_VALUE );<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> }<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> catch ( IOException e )<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> {<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> throw new RuntimeException( e );<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> }<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> }<a name="line.226"></a> |
| <span class="sourceLineNo">227</span><a name="line.227"></a> |
| <span class="sourceLineNo">228</span> /**<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> * Runs the consumer function recursively on each asset found starting at the base path<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> * @param baseAsset The base path where to start search<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> * @param consumer The consumer function applied to each found asset<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> * @param depthFirst If true, the deepest elements are consumed first.<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> * @param maxDepth The maximum depth to recurse into. 0 means, only the baseAsset is consumed, 1 the base asset and its children and so forth.<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> */<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> public static final void recurse(final StorageAsset baseAsset, final Consumer<StorageAsset> consumer, final boolean depthFirst, final int maxDepth) throws IOException {<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> recurse(baseAsset, consumer, depthFirst, maxDepth, 0);<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> }<a name="line.237"></a> |
| <span class="sourceLineNo">238</span><a name="line.238"></a> |
| <span class="sourceLineNo">239</span> /**<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> * Runs the consumer function recursively on each asset found starting at the base path. The function descends into<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> * maximum depth.<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> *<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> * @param baseAsset The base path where to start search<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> * @param consumer The consumer function applied to each found asset<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> * @param depthFirst If true, the deepest elements are consumed first.<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> */<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> public static final void recurse(final StorageAsset baseAsset, final Consumer<StorageAsset> consumer, final boolean depthFirst) throws IOException {<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> recurse(baseAsset, consumer, depthFirst, Integer.MAX_VALUE, 0);<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> }<a name="line.249"></a> |
| <span class="sourceLineNo">250</span><a name="line.250"></a> |
| <span class="sourceLineNo">251</span> /**<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> * Runs the consumer function recursively on each asset found starting at the base path. It does not recurse with<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> * depth first and stops only if there are no more children available.<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> *<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> * @param baseAsset The base path where to start search<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> * @param consumer The consumer function applied to each found asset<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> */<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> public static final void recurse(final StorageAsset baseAsset, final Consumer<StorageAsset> consumer) throws IOException {<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> recurse(baseAsset, consumer, false, Integer.MAX_VALUE, 0);<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> }<a name="line.260"></a> |
| <span class="sourceLineNo">261</span><a name="line.261"></a> |
| <span class="sourceLineNo">262</span> private static final void recurse(final StorageAsset baseAsset, final Consumer<StorageAsset> consumer, final boolean depthFirst, final int maxDepth, final int currentDepth)<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> throws IOException {<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> if (!depthFirst) {<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> consumer.accept(baseAsset);<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> }<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> if (currentDepth<maxDepth && baseAsset.isContainer()) {<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> for(StorageAsset asset : baseAsset.list() ) {<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> recurse(asset, consumer, depthFirst, maxDepth, currentDepth+1);<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> }<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> }<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> if (depthFirst) {<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> consumer.accept(baseAsset);<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> }<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> }<a name="line.275"></a> |
| <span class="sourceLineNo">276</span><a name="line.276"></a> |
| <span class="sourceLineNo">277</span> /**<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> * Deletes the given asset and all child assets recursively.<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> * @param baseDir The base asset to remove.<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> * @throws IOException<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> */<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> public static final void deleteRecursively(StorageAsset baseDir) throws IOException {<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> recurse(baseDir, a -> {<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> try {<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> a.getStorage().removeAsset(a);<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> } catch (IOException e) {<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> log.error("Could not delete asset {}", a.getPath());<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> }<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> },true);<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> }<a name="line.290"></a> |
| <span class="sourceLineNo">291</span><a name="line.291"></a> |
| <span class="sourceLineNo">292</span> /**<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> * Returns the extension of the name of a given asset. Extension is the substring after the last occurence of '.' in the<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> * string. If no '.' is found, the empty string is returned.<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> *<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> * @param asset The asset from which to return the extension string.<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> * @return The extension.<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> */<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> public static final String getExtension(StorageAsset asset) {<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> return StringUtils.substringAfterLast(asset.getName(),".");<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> }<a name="line.301"></a> |
| <span class="sourceLineNo">302</span><a name="line.302"></a> |
| <span class="sourceLineNo">303</span> public static final void copyToLocalFile(StorageAsset asset, Path destination, CopyOption... copyOptions) throws IOException {<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> if (asset.isFileBased()) {<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> Files.copy(asset.getFilePath(), destination, copyOptions);<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> } else {<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> try {<a name="line.307"></a> |
| <span class="sourceLineNo">308</span><a name="line.308"></a> |
| <span class="sourceLineNo">309</span> HashSet<OpenOption> openOptions = new HashSet<>();<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> for (CopyOption option : copyOptions) {<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> if (option == StandardCopyOption.REPLACE_EXISTING) {<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> openOptions.add(StandardOpenOption.CREATE);<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> openOptions.add(StandardOpenOption.TRUNCATE_EXISTING);<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> openOptions.add(StandardOpenOption.WRITE);<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> } else {<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> openOptions.add(StandardOpenOption.WRITE);<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> openOptions.add(StandardOpenOption.CREATE_NEW);<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> }<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> }<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> asset.getStorage().consumeDataFromChannel(asset, channel -> {<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> try {<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> FileChannel.open(destination, openOptions).transferFrom(channel, 0, Long.MAX_VALUE);<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> } catch (IOException e) {<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> throw new RuntimeException(e);<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> }<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> }, false);<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> } catch (Throwable e) {<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> if (e.getCause() instanceof IOException) {<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> throw (IOException)e.getCause();<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> } else {<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> throw new IOException(e);<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> }<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> }<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> }<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> }<a name="line.335"></a> |
| <span class="sourceLineNo">336</span><a name="line.336"></a> |
| <span class="sourceLineNo">337</span> public static class PathInformation {<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> final Path path ;<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> final boolean tmpFile;<a name="line.339"></a> |
| <span class="sourceLineNo">340</span><a name="line.340"></a> |
| <span class="sourceLineNo">341</span> PathInformation(Path path, boolean tmpFile) {<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> this.path = path;<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> this.tmpFile = tmpFile;<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> public Path getPath() {<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> return path;<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> }<a name="line.348"></a> |
| <span class="sourceLineNo">349</span><a name="line.349"></a> |
| <span class="sourceLineNo">350</span> public boolean isTmpFile() {<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> return tmpFile;<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> }<a name="line.354"></a> |
| <span class="sourceLineNo">355</span><a name="line.355"></a> |
| <span class="sourceLineNo">356</span> public static final PathInformation getAssetDataAsPath(StorageAsset asset) throws IOException {<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> if (!asset.exists()) {<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> throw new IOException("Asset does not exist");<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> }<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> if (asset.isFileBased()) {<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> return new PathInformation(asset.getFilePath(), false);<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> } else {<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> Path tmpFile = Files.createTempFile(asset.getName(), getExtension(asset));<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> copyToLocalFile(asset, tmpFile, StandardCopyOption.REPLACE_EXISTING);<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> return new PathInformation(tmpFile, true);<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> }<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> }<a name="line.367"></a> |
| <span class="sourceLineNo">368</span><a name="line.368"></a> |
| <span class="sourceLineNo">369</span>}<a name="line.369"></a> |
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| </div> |
| </body> |
| </html> |
