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POJava: how to get all subdirs recursively?
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  1. POJava: how to get all subdirs recursively?
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    copied!<p>Before debugging the late-hour-out-of-bound-recursive-function: is there a command to get subdirs? <code>giveMeSubDirs(downToPath)</code>?</p> <pre><code>// WARNING: RECURSION out of bound or too much data public HashSet&lt;FileObject&gt; getAllDirs(String path) { HashSet&lt;FileObject&gt; checkedDirs = new HashSet&lt;FileObject&gt;(); HashSet&lt;FileObject&gt; allDirs = new HashSet&lt;FileObject&gt;(); String startingPath = path; File fileThing = new File(path); FileObject fileObject = new FileObject(fileThing); for (FileObject dir : getDirsInDir(path)) { // SUBDIR while ( !checkedDirs.contains(dir) &amp;&amp; !(getDirsInDir(dir.getFile().getParent()).size() == 0)) { // DO NOT CHECK TOP DIRS if any bottom dir UNCHECKED! while ( uncheckedDirsOnLevel(path, checkedDirs).size() &gt; 0) { while (getDirsInDir(path).size() == 0 || (numberOfCheckedDirsOnLevel(path, checkedDirs)==getDirsInDir(path).size())) { allDirs.add(new FileObject(new File(path))); checkedDirs.add(new FileObject(new File(path))); if(traverseDownOneLevel(path) == startingPath ) return allDirs; //get nearer to the root path = traverseDownOneLevel(path); } path = giveAnUncheckedDir(path, checkedDirs); if ( path == "NoUnchecked.") { checkedDirs.add(new FileObject( (new File(path)).getParentFile() )); break; } } } } return allDirs; } </code></pre> <p><strong>Summary about the code:</strong></p> <ol> <li>Go as deep to the directory tree as possible. When there is no dir in a dir, stop, put the dir to the set, traverse up. Do not check dirs in the set. </li> <li>Stop and return the set if you reach the starting path.</li> <li>Repeat steps 1 and 2.</li> </ol> <p>PREMISE: the directory-structure is finite and with a small data amount.</p>
 

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