Watchr
Watchr is high level abstraction over JDK 7's
WatchService. It
registers WatchService in separate thread and watch for changes in
all given directories, its subdirectories and each new directory
created within watched directories. Change notifications are
asynchronously handled via OnChangeCallback.
Usage
Simplest usage of Watchr:
Watchr.watch(new OnChangeCallback() {
@Override
public void onChange(Path dir, List<WatchEvent<?>> events) {
// handle change event...
}
}, "/dir1", "/dir2");The watch() method takes callback that will be invoked whenever
change is noticed, and directories to watch.
watch() method returns WatchrThread which can be used to request
for interruption and join:
WatchrThread thread = Watchr.watch(...)
//...
thread.interrupt();
thread.join();Note that interrupt() won't immediately interrupt the WatchrThread
so you should join the thread and wait until it ends.
License
The MIT License (MIT)
Copyright (c) 2015 Michał Orman
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.