| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.netbeans.core.osgi; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| import org.netbeans.core.startup.CoreBridge; |
| import org.openide.modules.Dependency; |
| import org.openide.modules.ModuleInfo; |
| import org.openide.modules.SpecificationVersion; |
| import org.openide.util.Lookup; |
| import org.openide.util.lookup.AbstractLookup; |
| import org.openide.util.lookup.InstanceContent; |
| import org.openide.util.lookup.Lookups; |
| import org.openide.util.lookup.ProxyLookup; |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.Constants; |
| import org.osgi.framework.FrameworkUtil; |
| import org.osgi.framework.Version; |
| |
| /** |
| * Default lookup when running inside an OSGi container. |
| */ |
| public class OSGiMainLookup extends ProxyLookup { |
| |
| private static BundleContext context; |
| |
| private static OSGiMainLookup get() { |
| Object l = Lookup.getDefault(); |
| assert l instanceof OSGiMainLookup : "mismatch between " + OSGiMainLookup.class.getClassLoader() + " vs. " + l.getClass().getClassLoader(); |
| return (OSGiMainLookup) l; |
| } |
| |
| public static void initialize(BundleContext _context) throws Exception { |
| System.setProperty(Lookup.class.getName(), OSGiMainLookup.class.getName()); |
| context = _context; |
| OSGiMainLookup lkp; |
| ClassLoader oldCCL = Thread.currentThread().getContextClassLoader(); |
| Thread.currentThread().setContextClassLoader(OSGiMainLookup.class.getClassLoader()); |
| try { |
| lkp = get(); |
| } finally { |
| Thread.currentThread().setContextClassLoader(oldCCL); |
| } |
| lkp.postInit(); |
| } |
| |
| static void bundlesAdded(List<Bundle> bundles) { |
| OSGiMainLookup l = get(); |
| for (Bundle bundle : bundles) { |
| l.moduleInfoContent.add(bundle, moduleInfoConvertor); |
| l.loadedBundles.add(bundle); |
| } |
| l.setClassLoader(); |
| } |
| |
| static void bundlesRemoved(List<Bundle> bundles) { |
| OSGiMainLookup l = get(); |
| for (Bundle bundle : bundles) { |
| l.moduleInfoContent.remove(bundle, moduleInfoConvertor); |
| l.loadedBundles.remove(bundle); |
| } |
| l.setClassLoader(); |
| } |
| |
| static void loadServicesFolder() { |
| OSGiMainLookup l = get(); |
| l.nonClassLoaderDelegates.add(CoreBridge.getDefault().lookupCacheLoad()); |
| l.setDelegates(); |
| } |
| |
| private ClassLoader classLoader; |
| private final Set<Bundle> loadedBundles = Collections.synchronizedSet(new HashSet<Bundle>()); |
| private final List<Lookup> nonClassLoaderDelegates = new ArrayList<Lookup>(); |
| private final InstanceContent moduleInfoContent = new InstanceContent(); |
| private static final InstanceContent.Convertor<Bundle,ModuleInfo> moduleInfoConvertor = new InstanceContent.Convertor<Bundle, ModuleInfo>() { |
| public @Override ModuleInfo convert(Bundle b) { |
| return new BundleModuleInfo(b); |
| } |
| public @Override Class<? extends ModuleInfo> type(Bundle b) { |
| return ModuleInfo.class; |
| } |
| public @Override String id(Bundle b) { |
| return b.getSymbolicName(); |
| } |
| public @Override String displayName(Bundle b) { |
| return id(b); |
| } |
| }; |
| |
| public OSGiMainLookup() {} |
| |
| private void postInit() { |
| nonClassLoaderDelegates.add(Lookups.fixed(OSGiRepository.DEFAULT, new OSGiLifecycleManager(context), new OSGiInstalledFileLocator(context))); |
| nonClassLoaderDelegates.add(new AbstractLookup(moduleInfoContent)); |
| // XXX should add a org.openide.modules.Modules |
| setClassLoader(); |
| } |
| |
| private void setClassLoader() { |
| classLoader = new OSGiClassLoader(context, loadedBundles); |
| // XXX should it be set as thread CCL? would help some NB APIs, but might break OSGi conventions |
| setDelegates(); |
| } |
| |
| private void setDelegates() { |
| Lookup[] delegates = new Lookup[nonClassLoaderDelegates.size() + 2]; |
| nonClassLoaderDelegates.toArray(delegates); |
| delegates[delegates.length - 2] = Lookups.metaInfServices(classLoader); |
| delegates[delegates.length - 1] = Lookups.singleton(classLoader); |
| setLookups(delegates); |
| } |
| |
| private static final class BundleModuleInfo extends ModuleInfo { |
| private final Bundle b; |
| public BundleModuleInfo(Bundle b) { |
| this.b = b; |
| } |
| public @Override String getCodeNameBase() { |
| return b.getSymbolicName(); |
| } |
| public @Override int getCodeNameRelease() { |
| return b.getVersion().getMajor() / 100; |
| } |
| public @Override String getCodeName() { |
| int r = getCodeNameRelease(); |
| String s = getCodeNameBase(); |
| return r > 0 ? s + "/" + r : s; |
| } |
| public @Override SpecificationVersion getSpecificationVersion() { |
| Version v = b.getVersion(); |
| return new SpecificationVersion(v.getMajor() % 100 + "." + v.getMinor() + "." + v.getMicro()); |
| } |
| public @Override boolean isEnabled() { |
| switch (b.getState()) { |
| case Bundle.RESOLVED: |
| case Bundle.ACTIVE: |
| case Bundle.STARTING: |
| case Bundle.STOPPING: |
| return true; |
| default: |
| return false; |
| } |
| } |
| public @Override Object getAttribute(String attr) { |
| return b.getHeaders().get(attr); |
| } |
| public @Override Object getLocalizedAttribute(String attr) { |
| return getAttribute(attr); |
| } |
| public @Override Set<Dependency> getDependencies() { |
| return Collections.emptySet(); // XXX search Require-Bundle's? probably unused anyway |
| } |
| public @Override boolean owns(Class<?> clazz) { |
| return FrameworkUtil.getBundle(clazz) == b; |
| } |
| private ClassLoader loader; |
| public @Override synchronized ClassLoader getClassLoader() throws IllegalArgumentException { |
| if (loader == null) { |
| loader = new OSGiClassLoader(b); |
| } |
| return loader; |
| } |
| public @Override String getImplementationVersion() { |
| return b.getVersion().getQualifier(); |
| } |
| public @Override String getDisplayName() { |
| return (String) getLocalizedAttribute(Constants.BUNDLE_NAME); |
| } |
| } |
| |
| } |