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POJava 6 File Deletion with RandomAccessFile
 

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  1. POJava 6 File Deletion with RandomAccessFile
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    <p>I am really disappointed to discuss a similar java 6 file deletion issue and not being able to find a solution on these similar posts on flie deletion <a href="https://stackoverflow.com/questions/991489/i-cant-delete-a-file-in-java">Post1</a> and <a href="https://stackoverflow.com/questions/8097067/java-6-file-deletion">Post2</a>.</p> <p>I am working on an application which downloads a file from the FTP Server.This downloading is achieved by obtaining the stream , reading from this stream and writing it to a file <code>RandomAccessFile</code>. In case of corrupt downloads,I wish to delete the file on the disk.</p> <p>I am unable to delete the file manually or via the application.It is very obvious that some file handler still has the lock for the file due to which file deletion is a failure. However,I cant understand which file handlers possesses the file lock as I have made sure that I close all the file and the stream objects. </p> <p>Finally,the code snippet</p> <pre><code>public class OprDownload extends Observable implements Runnable { public void run() { //Code to connect to ftp,obtain the stream and write to a file if (download complete) { if(mwwObjFile!=null) { mwwObjFile.close(); } if(stream!=null) { stream.close(); } if(compareChecksum())//If checksum match success { updateDownloadDetails(); cwwIntStatus = COMPLETE; } else { cwwIntStatus = CHECKSUM_FAIL; deleteCorruptUpdateFromDownloadsFolder(); } } } public void deleteCorruptUpdateFromDownloadsFolder() { String fileOndisk = "FileName"; File mwwFileToBeDeleted = new File(fileOndisk ); if(mwwFileToBeDeleted .exists()) { System.out.println("File Deleted"+mwwFileToBeDeleted .delete()); } } } </code></pre>
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    1. USshabeena
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    1. COdoes your compare checksum code read from file? If yes, does it close all streams?
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      1. USSergey Grinev
    2. COBingo!! Okay I cant believe that I hadnt closed the file objects in the compare checksum code.Thanks
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