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1. #Java filewatcher watch for file type how to
2. #Java filewatcher watch for file type install
3. #Java filewatcher watch for file type code

PowerShell allows you to register more than one handler for a single source identifier but the FSWatcherEngineEvent module doesn’t allow you to create more than one watcher using the same source identifier. Id Name PSJobTypeName State HasMoreData Location Commandġ MyEvent NotStarted False |ConvertTo-Json|Wr… The following example just writes the whole event converted to JSON to the console: PS> Register-EngineEvent -SourceIdentifier "MyEvent" -Action You can consume the event by registering an event handler for the same source identifier. The watcher now sends notifications to PowerShell’s engine event queue using the source identifier “MyEvent”. New-FileSystemWatcher -SourceIdentifier "MyEvent" -Path C:\Tempfiles Please refer to the Microsoft’s reference documentation of the FileSystemWatcher class for the details.

#Java filewatcher watch for file type install

It hides the C#-API behind a PowerShell command with argument completion, it keeps track of the created watchers, and provides commands to pause notifications and to clean up the watchers if they are no longer needed.Īfter you install and import the module, you can create a new filesystem watcher.

I made the FSWatcherEngineEvent PowerShell module to make these file system watchers easier to use.

#Java filewatcher watch for file type how to

There are already many examples on the internet showing how to create and configure the watcher in PowerShell but this isn’t something I can easily recall from memory at the moment I need it. A file system watcher listens to change notifications generated by the operating system and invokes a given function if the file change matches several filter criteria like the directory, the file name or the type of the change.

NET Framework class named FileSystemWatcher which suits this job perfectly. Much better to just register a single watcher and filter the results yourself.Some time ago I wanted to sync files from a source directory to a destination directory immediately after they had changed in the source directory. I'd therefore suggest that the approach of registering multiple watchers is inefficient as you're putting more load on the API causing multiple callbacks and only one of the filters will match.

#Java filewatcher watch for file type code

Net code after the windows api has reported the file system change. If (Regex.IsMatch(strFileExt, RegexOptions.IgnoreCase))Ĭonsole.WriteLine("watched file type changed.") Ī quick look in the reflector shows that the filtering is done in. String strFileExt = getFileExt(e.FullPath)

Private static void OnChanged(object source, FileSystemEventArgs e) ObjWatcher.Changed += new FileSystemEventHandler(OnChanged) The idea is to watch for all extensions and then in the OnChange event, filter out to desired extensions: FileSystemWatcher objWatcher = new FileSystemWatcher() You can then bind them all to the same set of FileSystemEventHandler: string filters = įileSystemWatcher w = new FileSystemWatcher() You need to create a FileSystemWatcher for each file type. Use of multiple filters such as *.txt|*.doc is not supported. The Filter property only supports one filter at a time.