org.eclipse.sisu.launch

Class SisuTracker

java.lang.Object

org.osgi.util.tracker.BundleTracker<Object>

org.eclipse.sisu.launch.SisuTracker

All Implemented Interfaces:

BundlePlan, org.osgi.util.tracker.BundleTrackerCustomizer<Object>

public class SisuTracker
extends org.osgi.util.tracker.BundleTracker<Object>
implements BundlePlan

OSGi BundleTracker that tracks component bundles and uses BundlePlans to publish them.

Field Summary

Fields

Modifier and Type	Field and Description
protected MutableBeanLocator	locator Shared locator of bound components.
protected List<BundlePlan>	plans Custom plans; contributed by attaching fragments to the extender bundle.
protected int	stateMask Mask of bundle states being tracked.

Fields inherited from class org.osgi.util.tracker.BundleTracker

context

Constructor Summary

Constructors

Constructor and Description
SisuTracker(org.osgi.framework.BundleContext context, int stateMask, MutableBeanLocator locator)

Method Summary

Methods

Modifier and Type	Method and Description
Object	addingBundle(org.osgi.framework.Bundle bundle, org.osgi.framework.BundleEvent event)
protected List<BundlePlan>	discoverPlans() Discovers plans listed locally under META-INF/services/org.eclipse.sisu.launch.BundlePlan ; implementations must have a public no-arg constructor or one that accepts a MutableBeanLocator.
protected boolean	evictBundle(org.osgi.framework.Bundle bundle) Determines whether we should remove the BindingPublisher associated with the given bundle.
void	open()
BindingPublisher	prepare(org.osgi.framework.Bundle bundle) Prepares a BindingPublisher of components for the given bundle.
void	purgeBundles() Purges any bundles that are no longer valid.
void	removedBundle(org.osgi.framework.Bundle bundle, org.osgi.framework.BundleEvent event, Object object)

Methods inherited from class org.osgi.util.tracker.BundleTracker

close, getBundles, getObject, getTracked, getTrackingCount, isEmpty, modifiedBundle, remove, size

Methods inherited from class java.lang.Object

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

Field Detail

stateMask

protected final int stateMask

Mask of bundle states being tracked.

locator

protected final MutableBeanLocator locator

Shared locator of bound components.

plans

protected final List<BundlePlan> plans

Custom plans; contributed by attaching fragments to the extender bundle.

Constructor Detail

SisuTracker

public SisuTracker(org.osgi.framework.BundleContext context,
           int stateMask,
           MutableBeanLocator locator)

Method Detail

open

public final void open()

Overrides:

open in class org.osgi.util.tracker.BundleTracker<Object>

addingBundle

public final Object addingBundle(org.osgi.framework.Bundle bundle,
                  org.osgi.framework.BundleEvent event)

Specified by:

addingBundle in interface org.osgi.util.tracker.BundleTrackerCustomizer<Object>

Overrides:

addingBundle in class org.osgi.util.tracker.BundleTracker<Object>

removedBundle

public final void removedBundle(org.osgi.framework.Bundle bundle,
                 org.osgi.framework.BundleEvent event,
                 Object object)

Specified by:

removedBundle in interface org.osgi.util.tracker.BundleTrackerCustomizer<Object>

Overrides:

removedBundle in class org.osgi.util.tracker.BundleTracker<Object>

purgeBundles

public final void purgeBundles()

Purges any bundles that are no longer valid.

prepare

public BindingPublisher prepare(org.osgi.framework.Bundle bundle)

Description copied from interface: BundlePlan

Prepares a BindingPublisher of components for the given bundle.

Specified by:

prepare in interface BundlePlan

Parameters:

bundle - The bundle

Returns:

Publisher of bindings; null if the plan doesn't apply

discoverPlans

protected List<BundlePlan> discoverPlans()

Discovers plans listed locally under META-INF/services/org.eclipse.sisu.launch.BundlePlan ; implementations must have a public no-arg constructor or one that accepts a MutableBeanLocator.

Returns:

List of plans

evictBundle

protected boolean evictBundle(org.osgi.framework.Bundle bundle)

Determines whether we should remove the BindingPublisher associated with the given bundle.

Parameters:

bundle - The bundle

Returns:

true if the publisher should be removed; otherwise false