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/*******************************************************************************
* Copyright (c) 2006, 2014 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.core.runtime;
import org.eclipse.core.internal.registry.osgi.OSGIUtils;
import org.eclipse.core.runtime.spi.RegistryContributor;
import org.osgi.framework.Bundle;
/**
* The contributor factory creates new registry contributors for use in OSGi-based
* registries.
* <p>
* This class can not be extended or instantiated by clients.
* </p>
* @since org.eclipse.equinox.registry 3.2
* @noinstantiate This class is not intended to be instantiated by clients.
* @noextend This class is not intended to be subclassed by clients.
*/
public final class ContributorFactoryOSGi {
/**
* Creates registry contributor object based on a Bundle. The bundle must not
* be <code>null</code>.
*
* @param contributor bundle associated with the contribution
* @return new registry contributor based on the Bundle
*/
public static IContributor createContributor(Bundle contributor) {
String id = Long.toString(contributor.getBundleId());
String name = contributor.getSymbolicName();
String hostId = null;
String hostName = null;
// determine host properties, if any
if (OSGIUtils.getDefault().isFragment(contributor)) {
Bundle[] hosts = OSGIUtils.getDefault().getHosts(contributor);
if (hosts != null) {
Bundle hostBundle = hosts[0];
hostId = Long.toString(hostBundle.getBundleId());
hostName = hostBundle.getSymbolicName();
}
}
return new RegistryContributor(id, name, hostId, hostName);
}
/**
* Returns the OSGi bundle used to define this contributor. If a fragment
* was used to create the contributor, the fragment is returned.
*
* <p>The method may return null if the contributor is not based on a bundle,
* if the bundle can't be found, or if the bundle is presently unresolved or
* uninstalled.</p>
*
* @param contributor bundle-based registry contributor
* @return the actual OSGi bundle associated with this contributor
* @since org.eclipse.equinox.registry 3.3
*/
public static Bundle resolve(IContributor contributor) {
if (contributor == null)
return null;
if (!(contributor instanceof RegistryContributor))
return null;
String symbolicName = ((RegistryContributor) contributor).getActualName();
return OSGIUtils.getDefault().getBundle(symbolicName);
}
}
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