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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.commons.lang3.StringUtils;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import org.slf4j.Logger;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import org.slf4j.LoggerFactory;<a name="line.24"></a>
<span class="sourceLineNo">025</span><a name="line.25"></a>
<span class="sourceLineNo">026</span>import java.io.IOException;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import java.io.InputStream;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import java.io.OutputStream;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import java.nio.channels.FileChannel;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import java.nio.channels.ReadableByteChannel;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import java.nio.channels.WritableByteChannel;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import java.nio.file.*;<a name="line.32"></a>
<span class="sourceLineNo">033</span>import java.nio.file.attribute.*;<a name="line.33"></a>
<span class="sourceLineNo">034</span>import java.time.Instant;<a name="line.34"></a>
<span class="sourceLineNo">035</span>import java.util.ArrayList;<a name="line.35"></a>
<span class="sourceLineNo">036</span>import java.util.Collections;<a name="line.36"></a>
<span class="sourceLineNo">037</span>import java.util.List;<a name="line.37"></a>
<span class="sourceLineNo">038</span>import java.util.Set;<a name="line.38"></a>
<span class="sourceLineNo">039</span>import java.util.stream.Collectors;<a name="line.39"></a>
<span class="sourceLineNo">040</span><a name="line.40"></a>
<span class="sourceLineNo">041</span>/**<a name="line.41"></a>
<span class="sourceLineNo">042</span> * Implementation of an asset that is stored on the filesystem.<a name="line.42"></a>
<span class="sourceLineNo">043</span> * &lt;p&gt;<a name="line.43"></a>
<span class="sourceLineNo">044</span> * The implementation does not check the given paths. Caller should normalize the asset path<a name="line.44"></a>
<span class="sourceLineNo">045</span> * and check, if the base path is a parent of the resulting path.<a name="line.45"></a>
<span class="sourceLineNo">046</span> * &lt;p&gt;<a name="line.46"></a>
<span class="sourceLineNo">047</span> * The file must not exist for all operations.<a name="line.47"></a>
<span class="sourceLineNo">048</span> *<a name="line.48"></a>
<span class="sourceLineNo">049</span> * @author Martin Stockhammer &lt;martin_s@apache.org&gt;<a name="line.49"></a>
<span class="sourceLineNo">050</span> */<a name="line.50"></a>
<span class="sourceLineNo">051</span>public class FilesystemAsset implements StorageAsset, Comparable {<a name="line.51"></a>
<span class="sourceLineNo">052</span><a name="line.52"></a>
<span class="sourceLineNo">053</span> private final static Logger log = LoggerFactory.getLogger(FilesystemAsset.class);<a name="line.53"></a>
<span class="sourceLineNo">054</span><a name="line.54"></a>
<span class="sourceLineNo">055</span> private final Path basePath;<a name="line.55"></a>
<span class="sourceLineNo">056</span> private final Path assetPath;<a name="line.56"></a>
<span class="sourceLineNo">057</span> private final String relativePath;<a name="line.57"></a>
<span class="sourceLineNo">058</span><a name="line.58"></a>
<span class="sourceLineNo">059</span> public static final String DEFAULT_POSIX_FILE_PERMS = "rw-rw----";<a name="line.59"></a>
<span class="sourceLineNo">060</span> public static final String DEFAULT_POSIX_DIR_PERMS = "rwxrwx---";<a name="line.60"></a>
<span class="sourceLineNo">061</span><a name="line.61"></a>
<span class="sourceLineNo">062</span> public static final Set&lt;PosixFilePermission&gt; DEFAULT_POSIX_FILE_PERMISSIONS;<a name="line.62"></a>
<span class="sourceLineNo">063</span> public static final Set&lt;PosixFilePermission&gt; DEFAULT_POSIX_DIR_PERMISSIONS;<a name="line.63"></a>
<span class="sourceLineNo">064</span><a name="line.64"></a>
<span class="sourceLineNo">065</span> public static final AclEntryPermission[] DEFAULT_ACL_FILE_PERMISSIONS = new AclEntryPermission[]{<a name="line.65"></a>
<span class="sourceLineNo">066</span> AclEntryPermission.DELETE, AclEntryPermission.READ_ACL, AclEntryPermission.READ_ATTRIBUTES, AclEntryPermission.READ_DATA, AclEntryPermission.WRITE_ACL,<a name="line.66"></a>
<span class="sourceLineNo">067</span> AclEntryPermission.WRITE_ATTRIBUTES, AclEntryPermission.WRITE_DATA, AclEntryPermission.APPEND_DATA<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> public static final AclEntryPermission[] DEFAULT_ACL_DIR_PERMISSIONS = new AclEntryPermission[]{<a name="line.70"></a>
<span class="sourceLineNo">071</span> AclEntryPermission.ADD_FILE, AclEntryPermission.ADD_SUBDIRECTORY, AclEntryPermission.DELETE_CHILD,<a name="line.71"></a>
<span class="sourceLineNo">072</span> AclEntryPermission.DELETE, AclEntryPermission.READ_ACL, AclEntryPermission.READ_ATTRIBUTES, AclEntryPermission.READ_DATA, AclEntryPermission.WRITE_ACL,<a name="line.72"></a>
<span class="sourceLineNo">073</span> AclEntryPermission.WRITE_ATTRIBUTES, AclEntryPermission.WRITE_DATA, AclEntryPermission.APPEND_DATA<a name="line.73"></a>
<span class="sourceLineNo">074</span> };<a name="line.74"></a>
<span class="sourceLineNo">075</span><a name="line.75"></a>
<span class="sourceLineNo">076</span> static {<a name="line.76"></a>
<span class="sourceLineNo">077</span><a name="line.77"></a>
<span class="sourceLineNo">078</span> DEFAULT_POSIX_FILE_PERMISSIONS = PosixFilePermissions.fromString(DEFAULT_POSIX_FILE_PERMS);<a name="line.78"></a>
<span class="sourceLineNo">079</span> DEFAULT_POSIX_DIR_PERMISSIONS = PosixFilePermissions.fromString(DEFAULT_POSIX_DIR_PERMS);<a name="line.79"></a>
<span class="sourceLineNo">080</span> }<a name="line.80"></a>
<span class="sourceLineNo">081</span><a name="line.81"></a>
<span class="sourceLineNo">082</span> Set&lt;PosixFilePermission&gt; defaultPosixFilePermissions = DEFAULT_POSIX_FILE_PERMISSIONS;<a name="line.82"></a>
<span class="sourceLineNo">083</span> Set&lt;PosixFilePermission&gt; defaultPosixDirectoryPermissions = DEFAULT_POSIX_DIR_PERMISSIONS;<a name="line.83"></a>
<span class="sourceLineNo">084</span><a name="line.84"></a>
<span class="sourceLineNo">085</span> List&lt;AclEntry&gt; defaultFileAcls;<a name="line.85"></a>
<span class="sourceLineNo">086</span> List&lt;AclEntry&gt; defaultDirectoryAcls;<a name="line.86"></a>
<span class="sourceLineNo">087</span><a name="line.87"></a>
<span class="sourceLineNo">088</span> boolean supportsAcl = false;<a name="line.88"></a>
<span class="sourceLineNo">089</span> boolean supportsPosix = false;<a name="line.89"></a>
<span class="sourceLineNo">090</span> final boolean setPermissionsForNew;<a name="line.90"></a>
<span class="sourceLineNo">091</span> final RepositoryStorage storage;<a name="line.91"></a>
<span class="sourceLineNo">092</span><a name="line.92"></a>
<span class="sourceLineNo">093</span> boolean directoryHint = false;<a name="line.93"></a>
<span class="sourceLineNo">094</span><a name="line.94"></a>
<span class="sourceLineNo">095</span> private static final OpenOption[] REPLACE_OPTIONS = new OpenOption[]{StandardOpenOption.TRUNCATE_EXISTING, StandardOpenOption.CREATE};<a name="line.95"></a>
<span class="sourceLineNo">096</span> private static final OpenOption[] APPEND_OPTIONS = new OpenOption[]{StandardOpenOption.APPEND};<a name="line.96"></a>
<span class="sourceLineNo">097</span><a name="line.97"></a>
<span class="sourceLineNo">098</span><a name="line.98"></a>
<span class="sourceLineNo">099</span> FilesystemAsset(RepositoryStorage storage, String path, Path assetPath, Path basePath) {<a name="line.99"></a>
<span class="sourceLineNo">100</span> this.assetPath = assetPath;<a name="line.100"></a>
<span class="sourceLineNo">101</span> this.relativePath = normalizePath(path);<a name="line.101"></a>
<span class="sourceLineNo">102</span> this.setPermissionsForNew=false;<a name="line.102"></a>
<span class="sourceLineNo">103</span> this.basePath = basePath;<a name="line.103"></a>
<span class="sourceLineNo">104</span> this.storage = storage;<a name="line.104"></a>
<span class="sourceLineNo">105</span> init();<a name="line.105"></a>
<span class="sourceLineNo">106</span> }<a name="line.106"></a>
<span class="sourceLineNo">107</span><a name="line.107"></a>
<span class="sourceLineNo">108</span> /**<a name="line.108"></a>
<span class="sourceLineNo">109</span> * Creates an asset for the given path. The given paths are not checked.<a name="line.109"></a>
<span class="sourceLineNo">110</span> * The base path should be an absolute path.<a name="line.110"></a>
<span class="sourceLineNo">111</span> *<a name="line.111"></a>
<span class="sourceLineNo">112</span> * @param path The logical path for the asset relative to the repository.<a name="line.112"></a>
<span class="sourceLineNo">113</span> * @param assetPath The asset path.<a name="line.113"></a>
<span class="sourceLineNo">114</span> */<a name="line.114"></a>
<span class="sourceLineNo">115</span> public FilesystemAsset(RepositoryStorage storage, String path, Path assetPath) {<a name="line.115"></a>
<span class="sourceLineNo">116</span> this.assetPath = assetPath;<a name="line.116"></a>
<span class="sourceLineNo">117</span> this.relativePath = normalizePath(path);<a name="line.117"></a>
<span class="sourceLineNo">118</span> this.setPermissionsForNew = false;<a name="line.118"></a>
<span class="sourceLineNo">119</span> this.basePath = null;<a name="line.119"></a>
<span class="sourceLineNo">120</span> this.storage = storage;<a name="line.120"></a>
<span class="sourceLineNo">121</span> // The base directory is always a directory<a name="line.121"></a>
<span class="sourceLineNo">122</span> if ("".equals(path) || "/".equals(path)) {<a name="line.122"></a>
<span class="sourceLineNo">123</span> this.directoryHint = true;<a name="line.123"></a>
<span class="sourceLineNo">124</span> }<a name="line.124"></a>
<span class="sourceLineNo">125</span> init();<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> * Creates an asset for the given path. The given paths are not checked.<a name="line.129"></a>
<span class="sourceLineNo">130</span> * The base path should be an absolute path.<a name="line.130"></a>
<span class="sourceLineNo">131</span> *<a name="line.131"></a>
<span class="sourceLineNo">132</span> * @param path The logical path for the asset relative to the repository<a name="line.132"></a>
<span class="sourceLineNo">133</span> * @param assetPath The asset path.<a name="line.133"></a>
<span class="sourceLineNo">134</span> * @param directory This is only relevant, if the represented file or directory does not exist yet and<a name="line.134"></a>
<span class="sourceLineNo">135</span> * is a hint.<a name="line.135"></a>
<span class="sourceLineNo">136</span> */<a name="line.136"></a>
<span class="sourceLineNo">137</span> public FilesystemAsset(RepositoryStorage storage, String path, Path assetPath, Path basePath, boolean directory) {<a name="line.137"></a>
<span class="sourceLineNo">138</span> this.assetPath = assetPath;<a name="line.138"></a>
<span class="sourceLineNo">139</span> this.relativePath = normalizePath(path);<a name="line.139"></a>
<span class="sourceLineNo">140</span> this.directoryHint = directory;<a name="line.140"></a>
<span class="sourceLineNo">141</span> this.setPermissionsForNew = false;<a name="line.141"></a>
<span class="sourceLineNo">142</span> this.basePath = basePath;<a name="line.142"></a>
<span class="sourceLineNo">143</span> this.storage = storage;<a name="line.143"></a>
<span class="sourceLineNo">144</span> init();<a name="line.144"></a>
<span class="sourceLineNo">145</span> }<a name="line.145"></a>
<span class="sourceLineNo">146</span><a name="line.146"></a>
<span class="sourceLineNo">147</span> /**<a name="line.147"></a>
<span class="sourceLineNo">148</span> * Creates an asset for the given path. The given paths are not checked.<a name="line.148"></a>
<span class="sourceLineNo">149</span> * The base path should be an absolute path.<a name="line.149"></a>
<span class="sourceLineNo">150</span> *<a name="line.150"></a>
<span class="sourceLineNo">151</span> * @param path The logical path for the asset relative to the repository<a name="line.151"></a>
<span class="sourceLineNo">152</span> * @param assetPath The asset path.<a name="line.152"></a>
<span class="sourceLineNo">153</span> * @param directory This is only relevant, if the represented file or directory does not exist yet and<a name="line.153"></a>
<span class="sourceLineNo">154</span> * is a hint.<a name="line.154"></a>
<span class="sourceLineNo">155</span> */<a name="line.155"></a>
<span class="sourceLineNo">156</span> public FilesystemAsset(RepositoryStorage storage, String path, Path assetPath, Path basePath, boolean directory, boolean setPermissionsForNew) {<a name="line.156"></a>
<span class="sourceLineNo">157</span> this.assetPath = assetPath;<a name="line.157"></a>
<span class="sourceLineNo">158</span> this.relativePath = normalizePath(path);<a name="line.158"></a>
<span class="sourceLineNo">159</span> this.directoryHint = directory;<a name="line.159"></a>
<span class="sourceLineNo">160</span> this.setPermissionsForNew = setPermissionsForNew;<a name="line.160"></a>
<span class="sourceLineNo">161</span> this.basePath = basePath;<a name="line.161"></a>
<span class="sourceLineNo">162</span> this.storage = storage;<a name="line.162"></a>
<span class="sourceLineNo">163</span> init();<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> private String normalizePath(final String path) {<a name="line.166"></a>
<span class="sourceLineNo">167</span> if (!path.startsWith("/")) {<a name="line.167"></a>
<span class="sourceLineNo">168</span> return "/"+path;<a name="line.168"></a>
<span class="sourceLineNo">169</span> } else {<a name="line.169"></a>
<span class="sourceLineNo">170</span> String tmpPath = path;<a name="line.170"></a>
<span class="sourceLineNo">171</span> while (tmpPath.startsWith("//")) {<a name="line.171"></a>
<span class="sourceLineNo">172</span> tmpPath = tmpPath.substring(1);<a name="line.172"></a>
<span class="sourceLineNo">173</span> }<a name="line.173"></a>
<span class="sourceLineNo">174</span> return tmpPath;<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> private void init() {<a name="line.178"></a>
<span class="sourceLineNo">179</span><a name="line.179"></a>
<span class="sourceLineNo">180</span> if (setPermissionsForNew) {<a name="line.180"></a>
<span class="sourceLineNo">181</span> try {<a name="line.181"></a>
<span class="sourceLineNo">182</span> supportsAcl = Files.getFileStore(assetPath.getRoot()).supportsFileAttributeView(AclFileAttributeView.class);<a name="line.182"></a>
<span class="sourceLineNo">183</span> } catch (IOException e) {<a name="line.183"></a>
<span class="sourceLineNo">184</span> log.error("Could not check filesystem capabilities {}", e.getMessage());<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> supportsPosix = Files.getFileStore(assetPath.getRoot()).supportsFileAttributeView(PosixFileAttributeView.class);<a name="line.187"></a>
<span class="sourceLineNo">188</span> } catch (IOException e) {<a name="line.188"></a>
<span class="sourceLineNo">189</span> log.error("Could not check filesystem capabilities {}", e.getMessage());<a name="line.189"></a>
<span class="sourceLineNo">190</span> }<a name="line.190"></a>
<span class="sourceLineNo">191</span><a name="line.191"></a>
<span class="sourceLineNo">192</span> if (supportsAcl) {<a name="line.192"></a>
<span class="sourceLineNo">193</span> AclFileAttributeView aclView = Files.getFileAttributeView(assetPath.getParent(), AclFileAttributeView.class);<a name="line.193"></a>
<span class="sourceLineNo">194</span> UserPrincipal owner = null;<a name="line.194"></a>
<span class="sourceLineNo">195</span> try {<a name="line.195"></a>
<span class="sourceLineNo">196</span> owner = aclView.getOwner();<a name="line.196"></a>
<span class="sourceLineNo">197</span> setDefaultFileAcls(processPermissions(owner, DEFAULT_ACL_FILE_PERMISSIONS));<a name="line.197"></a>
<span class="sourceLineNo">198</span> setDefaultDirectoryAcls(processPermissions(owner, DEFAULT_ACL_DIR_PERMISSIONS));<a name="line.198"></a>
<span class="sourceLineNo">199</span><a name="line.199"></a>
<span class="sourceLineNo">200</span> } catch (IOException e) {<a name="line.200"></a>
<span class="sourceLineNo">201</span> supportsAcl = false;<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> }<a name="line.206"></a>
<span class="sourceLineNo">207</span> }<a name="line.207"></a>
<span class="sourceLineNo">208</span><a name="line.208"></a>
<span class="sourceLineNo">209</span> private List&lt;AclEntry&gt; processPermissions(UserPrincipal owner, AclEntryPermission[] defaultAclFilePermissions) {<a name="line.209"></a>
<span class="sourceLineNo">210</span> AclEntry.Builder aclBuilder = AclEntry.newBuilder();<a name="line.210"></a>
<span class="sourceLineNo">211</span> aclBuilder.setPermissions(defaultAclFilePermissions);<a name="line.211"></a>
<span class="sourceLineNo">212</span> aclBuilder.setType(AclEntryType.ALLOW);<a name="line.212"></a>
<span class="sourceLineNo">213</span> aclBuilder.setPrincipal(owner);<a name="line.213"></a>
<span class="sourceLineNo">214</span> ArrayList&lt;AclEntry&gt; aclList = new ArrayList&lt;&gt;();<a name="line.214"></a>
<span class="sourceLineNo">215</span> aclList.add(aclBuilder.build());<a name="line.215"></a>
<span class="sourceLineNo">216</span> return aclList;<a name="line.216"></a>
<span class="sourceLineNo">217</span> }<a name="line.217"></a>
<span class="sourceLineNo">218</span><a name="line.218"></a>
<span class="sourceLineNo">219</span><a name="line.219"></a>
<span class="sourceLineNo">220</span> @Override<a name="line.220"></a>
<span class="sourceLineNo">221</span> public RepositoryStorage getStorage( )<a name="line.221"></a>
<span class="sourceLineNo">222</span> {<a name="line.222"></a>
<span class="sourceLineNo">223</span> return storage;<a name="line.223"></a>
<span class="sourceLineNo">224</span> }<a name="line.224"></a>
<span class="sourceLineNo">225</span><a name="line.225"></a>
<span class="sourceLineNo">226</span> @Override<a name="line.226"></a>
<span class="sourceLineNo">227</span> public String getPath() {<a name="line.227"></a>
<span class="sourceLineNo">228</span> return relativePath;<a name="line.228"></a>
<span class="sourceLineNo">229</span> }<a name="line.229"></a>
<span class="sourceLineNo">230</span><a name="line.230"></a>
<span class="sourceLineNo">231</span> @Override<a name="line.231"></a>
<span class="sourceLineNo">232</span> public String getName() {<a name="line.232"></a>
<span class="sourceLineNo">233</span> return assetPath.getFileName().toString();<a name="line.233"></a>
<span class="sourceLineNo">234</span> }<a name="line.234"></a>
<span class="sourceLineNo">235</span><a name="line.235"></a>
<span class="sourceLineNo">236</span> @Override<a name="line.236"></a>
<span class="sourceLineNo">237</span> public Instant getModificationTime() {<a name="line.237"></a>
<span class="sourceLineNo">238</span> try {<a name="line.238"></a>
<span class="sourceLineNo">239</span> return Files.getLastModifiedTime(assetPath).toInstant();<a name="line.239"></a>
<span class="sourceLineNo">240</span> } catch (IOException e) {<a name="line.240"></a>
<span class="sourceLineNo">241</span> log.error("Could not read modification time of {}", assetPath);<a name="line.241"></a>
<span class="sourceLineNo">242</span> return Instant.now();<a name="line.242"></a>
<span class="sourceLineNo">243</span> }<a name="line.243"></a>
<span class="sourceLineNo">244</span> }<a name="line.244"></a>
<span class="sourceLineNo">245</span><a name="line.245"></a>
<span class="sourceLineNo">246</span> /**<a name="line.246"></a>
<span class="sourceLineNo">247</span> * Returns true, if the path of this asset points to a directory<a name="line.247"></a>
<span class="sourceLineNo">248</span> *<a name="line.248"></a>
<span class="sourceLineNo">249</span> * @return<a name="line.249"></a>
<span class="sourceLineNo">250</span> */<a name="line.250"></a>
<span class="sourceLineNo">251</span> @Override<a name="line.251"></a>
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</pre>
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