com.buglabs.osgi.filesystem.init
Class AbstractFileMonitor

java.lang.Object
  com.buglabs.osgi.filesystem.init.AbstractFileMonitor

All Implemented Interfaces:

FileMonitor

Direct Known Subclasses:

InstalledBundleMonitor, RunLevelFileMonitor

public abstract class AbstractFileMonitor
extends java.lang.Object
implements FileMonitor

Abstract base class for FileMonitors. Common functionality for install-only and run level monitors.

Field Summary

protected Bundle	bundle
protected BundleContext	context
protected java.io.File	file
protected LogService	log
protected boolean	originalFile

Constructor Summary

AbstractFileMonitor(java.io.File f, BundleContext context)

Method Summary

protected java.lang.String	createBundleURI(java.lang.String path) Given a java.io.File, return the OSGi-style file path URI.
protected boolean	fileChanged(java.io.File f)
protected boolean	fileDeleted(java.io.File file) Check to see if file removed from filesystem, if so, uninstall bundle and return true, or false otherwise.
java.io.File	getFile()
abstract boolean	update()

Methods inherited from class java.lang.Object

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

Field Detail

file

protected final java.io.File file

context

protected final BundleContext context

bundle

protected Bundle bundle

log

protected LogService log

originalFile

protected boolean originalFile

Constructor Detail

AbstractFileMonitor

public AbstractFileMonitor(java.io.File f,
                           BundleContext context)
                    throws java.io.IOException,
                           BundleException

Throws:

java.io.IOException

BundleException

Method Detail

fileChanged

protected boolean fileChanged(java.io.File f)

Returns:

true if the modified time has changes since object creation or last time fileChanged() returned true.

createBundleURI

protected java.lang.String createBundleURI(java.lang.String path)

Given a java.io.File, return the OSGi-style file path URI.

Parameters:

path -

Returns:

update

public abstract boolean update()
                        throws java.lang.Exception

Specified by:

update in interface FileMonitor

Returns:

true if update occurred successfully, false if the bundle has been removed from the system.

Throws:

java.lang.Exception

fileDeleted

protected boolean fileDeleted(java.io.File file)

Check to see if file removed from filesystem, if so, uninstall bundle and return true, or false otherwise.

Parameters:

file -

Returns:

Throws:

BundleException

getFile

public java.io.File getFile()

Specified by:

getFile in interface FileMonitor

Returns:

absolute path of file.