[jira] Created: (VFS-268) When I set a delay on FileMonitor it detects a create on a file, but if the file is deleted/moved and created in the directory again it does not detect it

[John (JIRA)]

When I set a delay on FileMonitor it detects a create on a file, but if the 
file is deleted/moved and created in the directory again it does not detect it
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                 Key: VFS-268
                 URL: https://issues.apache.org/jira/browse/VFS-268
             Project: Commons VFS
          Issue Type: Bug
         Environment: Windows listening on directory on unix or windows
            Reporter: John
            Priority: Blocker


I am using a DefaultFileMonitor within a FileListener to listen on a directory. 
 I get different behavior when I set the monitor delay to 0 and non zero. When 
I set it to 0 and add files to the directory, the createfile event is 
triggered, I move the files out of the directory. If I add the same files back 
into the directory, the create event is again triggered.

If I set the delay to 60000, the first time the files are added the event is 
triggered, I move the files out of the directory. When I add the files back 
into the directory, the create event does not trigger (i.e. it triggers the 
first time, but only the first time).

The only difference between the situations is 1 has delay set to 60000, the 
other sets it to 0 ( and I see in the code that that causes a delay of 1000).


Here is a snippet of the pertinent code.    Thanks for any 
information/assistance you can find time to give.




public FileMessageListener(String dataArea, ReceiverDetail receiverRecord, 
                                                   FileObject 
fileDirectoryObject, FileObject errorDirectoryObject, 
                                                   FileObject 
processedDirectoryObject, long FileAccessCheckTime) throws Exception
        {
                this.dataArea = dataArea;
                this.channel = receiverRecord.getKey().channel;
                this.receiver = receiverRecord.getKey().receiver;
                this.processDefinition = receiverRecord.processDefinition;
                this.sendFileData = receiverRecord.filereceiverSendFileData;

                this.fileDirectoryObject = fileDirectoryObject;
                this.errorDirectoryObject = errorDirectoryObject;
                this.processedDirectoryObject = processedDirectoryObject;
                
                this.caseinsensitive = 
(System.getProperty("os.name").indexOf("Windows") >= 0);

                this.regexString = 
getRegexString(receiverRecord.filereceiverFileName);

                this.fileMonitor = new DefaultFileMonitor(this);
                this.fileMonitor.setDelay(1000 * 60 * FileAccessCheckTime);
                
                // Recursive needs to be set before files are added to the 
monitor.
                fileMonitor.setRecursive(false);
        
                fileMonitor.addFile(fileDirectoryObject);
                fileMonitor.start();

etc.......

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