/******************************************************************************* | |
* Copyright (c) 2010 Oracle. | |
* All rights reserved. This program and the accompanying materials | |
* are made available under the terms of the Eclipse Public License v1.0 | |
* and Apache License v2.0 which accompanies this distribution. | |
* The Eclipse Public License is available at | |
* http://www.eclipse.org/legal/epl-v10.html | |
* and the Apache License v2.0 is available at | |
* http://www.opensource.org/licenses/apache2.0.php. | |
* You may elect to redistribute this code under either of these licenses. | |
* | |
* Contributors: | |
* Hal Hildebrand - Initial JMX support | |
******************************************************************************/ | |
package org.eclipse.gemini.management.internal; | |
import java.util.ArrayList; | |
import java.util.List; | |
import org.osgi.framework.Bundle; | |
import org.osgi.framework.Constants; | |
import org.osgi.framework.startlevel.BundleStartLevel; | |
import org.osgi.framework.wiring.BundleRevision; | |
import org.osgi.framework.wiring.BundleWire; | |
import org.osgi.framework.wiring.BundleWiring; | |
/** | |
* Static utilities | |
* | |
*/ | |
public final class BundleUtil { | |
/** | |
* Answer the string representation of the exported packages of the bundle | |
* | |
* @param b | |
* @param admin | |
* @return the string representation of the exported packages of the bundle | |
*/ | |
public static String[] getBundleExportedPackages(Bundle bundle) { | |
BundleWiring wiring = bundle.adapt(BundleWiring.class); | |
List<BundleWire> providedWires = wiring.getProvidedWires(BundleRevision.PACKAGE_NAMESPACE); | |
List<String> packages = new ArrayList<String>(); | |
for(BundleWire wire: providedWires){ | |
String packageName = String.format("%s;%s", wire.getCapability().getAttributes().get(BundleRevision.PACKAGE_NAMESPACE), wire.getCapability().getAttributes().get(Constants.VERSION_ATTRIBUTE)); | |
if(!packages.contains(packageName)){ | |
packages.add(packageName); | |
} | |
} | |
return packages.toArray(new String[packages.size()]); | |
} | |
/** | |
* Answer the string representation of the packages imported by a bundle | |
* | |
* @param b | |
* @param bundleContext | |
* @param admin | |
* @return the string representation of the packages imported by a bundle | |
*/ | |
public static String[] getBundleImportedPackages(Bundle bundle) { | |
BundleWiring wiring = bundle.adapt(BundleWiring.class); | |
List<BundleWire> providedWires = wiring.getRequiredWires(BundleRevision.PACKAGE_NAMESPACE); | |
List<String> packages = new ArrayList<String>(); | |
for(BundleWire wire: providedWires){ | |
String packageName = String.format("%s;%s", wire.getCapability().getAttributes().get(BundleRevision.PACKAGE_NAMESPACE), wire.getCapability().getAttributes().get(Constants.VERSION_ATTRIBUTE)); | |
if(!packages.contains(packageName)){ | |
packages.add(packageName); | |
} | |
} | |
return packages.toArray(new String[packages.size()]); | |
} | |
/** | |
* Answer the string representation of the bundle state | |
* | |
* @param b | |
* @return the string representation of the bundle state | |
*/ | |
public static String getBundleState(Bundle b) { | |
switch (b.getState()) { | |
case Bundle.ACTIVE: | |
return "ACTIVE"; | |
case Bundle.INSTALLED: | |
return "INSTALLED"; | |
case Bundle.RESOLVED: | |
return "RESOLVED"; | |
case Bundle.STARTING: | |
return "STARTING"; | |
case Bundle.STOPPING: | |
return "STOPPING"; | |
case Bundle.UNINSTALLED: | |
return "UNINSTALLED"; | |
default: | |
return "UNKNOWN"; | |
} | |
} | |
/** | |
* Answer true if the bundle is a fragment | |
* | |
* @param bundle | |
* @param admin | |
* @return true if the bundle is a fragment | |
*/ | |
public static boolean isBundleFragment(Bundle bundle) { | |
BundleWiring wiring = bundle.adapt(BundleWiring.class); | |
return 0 != (wiring.getRevision().getTypes() & BundleRevision.TYPE_FRAGMENT); | |
} | |
/** | |
* Return the start level for the given bundle | |
* | |
* @param bundle | |
* @return | |
*/ | |
public static int getBundleStartLevel(Bundle bundle) { | |
BundleStartLevel startLevel = bundle.adapt(BundleStartLevel.class); | |
return startLevel.getStartLevel(); | |
} | |
/** | |
* Answer true if the bundle has been persitently started | |
* | |
* @param bundle | |
* @param sl | |
* @return true if the bundle has been persitently started | |
*/ | |
public static boolean isBundlePersistentlyStarted(Bundle bundle) { | |
BundleStartLevel startLevel = bundle.adapt(BundleStartLevel.class); | |
return startLevel.isPersistentlyStarted(); | |
} | |
/** | |
* Answer true if the bundle has been persitently started | |
* | |
* @param bundle | |
* @param sl | |
* @return true if the bundle has been persitently started | |
*/ | |
public static boolean isBundleActivationPolicyUsed(Bundle bundle) { | |
BundleStartLevel startLevel = bundle.adapt(BundleStartLevel.class); | |
return startLevel.isActivationPolicyUsed(); | |
} | |
/** | |
* Answer true if the bundle is required | |
* | |
* @param bundle | |
* @param bc | |
* @return true if the bundle is required | |
*/ | |
public static boolean isRequired(Bundle bundle) { | |
BundleWiring wiring = bundle.adapt(BundleWiring.class); | |
return wiring.getProvidedWires(BundleRevision.BUNDLE_NAMESPACE).size() > 0; | |
} | |
/** | |
* Answer true if the bundle is pending removal | |
* | |
* @param bundle | |
* @param bc | |
* @return true if the bundle is pending removal | |
*/ | |
public static boolean isRemovalPending(Bundle bundle) { | |
BundleWiring wiring = bundle.adapt(BundleWiring.class); | |
return (!wiring.isCurrent()) && wiring.isInUse(); | |
} | |
} |