org.hotswap.agent.watch.nio

Class AbstractNIO2Watcher

java.lang.Object

org.hotswap.agent.watch.nio.AbstractNIO2Watcher

All Implemented Interfaces:

Watcher

Direct Known Subclasses:

TreeWatcherNIO, WatcherNIO2

public abstract class AbstractNIO2Watcher
extends Object
implements Watcher

NIO2 watcher implementation for systems which support ExtendedWatchEventModifier.FILE_TREE

Java 7 (NIO2) watch a directory (or tree) for changes to files.

By http://docs.oracle.com/javase/tutorial/essential/io/examples/WatchDir.java

Author:

Jiri Bubnik, alpapad@gmail.com

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<WatchEventListener,ClassLoader>	classLoaderListeners
protected EventDispatcher	dispatcher
protected Map<WatchKey,PathPair>	keys
protected static WatchEvent.Kind<?>[]	KINDS
protected AgentLogger	LOGGER
protected WatchService	watcher

Constructor Summary

Constructors

Constructor and Description
AbstractNIO2Watcher()

Method Summary

Modifier and Type	Method and Description
void	addDirectory(Path path) Registers the given directory
void	addEventListener(ClassLoader classLoader, URI pathPrefix, WatchEventListener listener) Register listeners on an event.
void	addEventListener(ClassLoader classLoader, URL pathPrefix, WatchEventListener listener) Register listeners on an event.
void	closeClassLoader(ClassLoader classLoader) Remove all transformers registered with a classloader
protected abstract void	registerAll(Path watched, Path target)
void	run() Run the watcher agent thread.
void	stop() Stop the watcher agent thread.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LOGGER

protected AgentLogger LOGGER

KINDS

protected static final WatchEvent.Kind<?>[] KINDS

watcher

protected WatchService watcher

keys

protected final Map<WatchKey,PathPair> keys

classLoaderListeners

protected Map<WatchEventListener,ClassLoader> classLoaderListeners

dispatcher

protected final EventDispatcher dispatcher

Constructor Detail

AbstractNIO2Watcher

public AbstractNIO2Watcher()
                    throws IOException

Throws:

IOException

Method Detail

addEventListener

public void addEventListener(ClassLoader classLoader,
                             URI pathPrefix,
                             WatchEventListener listener)

Description copied from interface: Watcher

Register listeners on an event.

Specified by:

addEventListener in interface Watcher

Parameters:

classLoader - the classloader to which this path is associated. May be null, but then this listener will never be disassociated (even if application is undeployed)

pathPrefix - where to listen

listener - the listener

addEventListener

public void addEventListener(ClassLoader classLoader,
                             URL pathPrefix,
                             WatchEventListener listener)

Description copied from interface: Watcher

Register listeners on an event.

Specified by:

addEventListener in interface Watcher

Parameters:

classLoader - the classloader to which this path is associated. May be null, but then this listener will never be disassociated (even if application is undeployed)

pathPrefix - where to listen

listener - the listener

closeClassLoader

public void closeClassLoader(ClassLoader classLoader)

Remove all transformers registered with a classloader

Specified by:

closeClassLoader in interface Watcher

Parameters:

classLoader -

addDirectory

public void addDirectory(Path path)
                  throws IOException

Registers the given directory

Throws:

IOException

registerAll

protected abstract void registerAll(Path watched,
                                    Path target)
                             throws IOException

Throws:

IOException

run

public void run()

Description copied from interface: Watcher

Run the watcher agent thread.

Specified by:

run in interface Watcher

stop

public void stop()

Description copied from interface: Watcher

Stop the watcher agent thread.

Specified by:

stop in interface Watcher