Check limitations for your target platform. If you disable this, you can get some events multiple times on some platforms and JDKs. Unbounded by default.Ĭ-file-hashingĮnables or disables file hashing to detect duplicate events. Maximum size of queue between WatchService and consumer. Increase this value, if you see OVERFLOW messages in log. The number of threads polling WatchService. You can also provide custom implementation in registry. ![]() For working with large files and if you dont need detect multiple modifications per second per file, use #lastModifiedTimeFileHasher. This prevents emitting duplicate events on some platforms. Whether to enable auto configuration of the file-watch component. Increase this value, if your route is slow to prevent buffering in queue. By default the consumer will use the .ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.Ĭ-consumers This can be used for automatic configuring JDBC data sources, JMS connection factories, AWS Clients, etc.Ĭ-error-handlerĪllows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. This is used for automatic autowiring options (the option must be marked as autowired) by looking up in the registry to find if there is a single instance of matching type, which then gets configured on the component. # find the path to the desktop folder: $desktop = :: GetFolderPath ( 'Desktop' ) # specify the path to the folder you want to monitor: $Path = $desktop # specify which files you want to monitor $FileFilter = '*' # specify whether you want to monitor subfolders as well: $IncludeSubfolders = $true # specify the file or folder properties you want to monitor: $AttributeFilter = :: FileName, :: LastWrite # specify the type of changes you want to monitor: $ChangeTypes = :: Created, :: Deleted # specify the maximum time (in milliseconds) you want to wait for changes: $Timeout = 1000 # define a function that gets called for every change: function Invoke-SomeAction # subscribe your event handler to all event types that are # important to towired-enabled Whenever a change is detected, Invoke-SomeAction is called. This is straight-forward: the script below monitors your desktop and all of its subfolders for new files and for deletion of files. However, responding to events is not trivial in a single-threaded environment like PowerShell. This way, you cannot miss change events because the FileSystemWatcher is constantly monitoring. Instead, whenever a change occurs, an event is fired, and your script can respond to the events. Advanced Mode: In asynchronous mode, the FileSystemWatcher does not block PowerShell. ![]() This approachis very simple to implement however there is a chance to miss change events when they occur in rapid succession. This blocks PowerShell until either the change occurs or a timeout is reached.
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