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POJDK 7 Watchkey pollEvents not capturing ENTRY_CREATE or ENTRY_MODIFY when large number of files are being copied
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  1. POJDK 7 Watchkey pollEvents not capturing ENTRY_CREATE or ENTRY_MODIFY when large number of files are being copied
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    copied!<p>I am trying to watch all modifications that are being done to a specific folder. When I copy a folder including 2~5 subfolders with each having 2~3 files. Everything works great.</p> <p>The problem arises when I copy complicated folder structures. For example, when I copy any sample web application folder (for testing purposes only) where the WEB-INF folder has numerous source files and subfolders in the classes folder, and large number of jars in the lib folder and so on and so forth.</p> <p>Lots of file events for "ENTRY_CREATE" and "ENTRY_MODIFY" for lots of files are being missed.</p> <p>Is the NIO2 Watcher API unreliable ?</p> <p>Im using the following snippet as documented in the Oracle web site.</p> <pre><code>WatchKey watchKey = folderPathToMonitor.register(watchService,StandardWatchEventKinds.ENTRY_CREATE, StandardWatchEventKinds.ENTRY_DELETE, StandardWatchEventKinds.ENTRY_MODIFY); </code></pre> <p>And this is how I'm capturing the events : The code is exactly the one as in here - <a href="http://docs.oracle.com/javase/tutorial/displayCode.html?code=http://docs.oracle.com/javase/tutorial/essential/io/examples/WatchDir.java" rel="nofollow">http://docs.oracle.com/javase/tutorial/displayCode.html?code=http://docs.oracle.com/javase/tutorial/essential/io/examples/WatchDir.java</a></p> <p>I copy, say about 500 files in 30 folders and Ideally ENTRY_CREATE and ENTRY_MODIFY has to be notified for as many files and folders. But the maximum events(ENTRY_CREATE and ENTRY_MODIFY clubbed together) captured is not going past 280 whereas a minimum of 530 ENTRY_CREATE events alone should be registered for the 530 files and folders that were copied.</p> <p>Any thing I'm missing out or have to add to the watching code from oracle.com ? Any suggestions regarding this are highly appreciated.</p>
 

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