| /* |
| * Copyright 2005 The Apache Software Foundation |
| * |
| * Licensed 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.apache.osgi.framework; |
| |
| import java.io.InputStream; |
| import java.security.AccessController; |
| import java.security.PrivilegedAction; |
| import java.util.*; |
| |
| import org.apache.osgi.framework.searchpolicy.*; |
| import org.apache.osgi.framework.util.CaseInsensitiveMap; |
| import org.apache.osgi.framework.util.FelixConstants; |
| import org.apache.osgi.moduleloader.LibrarySource; |
| import org.apache.osgi.moduleloader.ResourceSource; |
| import org.osgi.framework.*; |
| |
| |
| class SystemBundle extends BundleImpl |
| { |
| private List m_activatorList = null; |
| private BundleActivator m_activator = null; |
| private Thread m_shutdownThread = null; |
| private Object[][] m_attributes = null; |
| private ResourceSource[] m_resSources = null; |
| private LibrarySource[] m_libSources = null; |
| |
| protected SystemBundle(Felix felix, BundleInfo info, List activatorList) |
| throws BundleException |
| { |
| super(felix, info); |
| |
| // Create an activator list if necessary. |
| if (activatorList == null) |
| { |
| activatorList = new ArrayList(); |
| } |
| |
| // Add the bundle activator for the package admin service. |
| activatorList.add(new PackageAdminActivator(felix)); |
| |
| // Add the bundle activator for the start level service. |
| activatorList.add(new StartLevelActivator(felix)); |
| |
| m_activatorList = activatorList; |
| |
| // The system bundle exports framework packages as well as |
| // arbitrary user-defined packages from the system class path. |
| // We must construct the system bundle's export metadata. |
| |
| // Get system property that specifies which class path |
| // packages should be exported by the system bundle. |
| R4Package[] classPathPkgs = null; |
| try |
| { |
| classPathPkgs = R4Package.parseImportOrExportHeader( |
| getFelix().getConfig().get(FelixConstants.FRAMEWORK_SYSTEMPACKAGES)); |
| } |
| catch (Exception ex) |
| { |
| getFelix().getLogger().log( |
| LogWrapper.LOG_ERROR, |
| "Error parsing system bundle export statement.", ex); |
| } |
| |
| // Now, create the list of standard framework exports for |
| // the system bundle. |
| R4Package[] exports = new R4Package[classPathPkgs.length + 3]; |
| |
| exports[0] = new R4Package( |
| "org.osgi.framework", |
| new R4Directive[0], |
| new R4Attribute[] { new R4Attribute("version", "1.2.0", false) }); |
| |
| exports[1] = new R4Package( |
| "org.osgi.service.packageadmin", |
| new R4Directive[0], |
| new R4Attribute[] { new R4Attribute("version", "1.2.0", false) }); |
| |
| exports[2] = new R4Package( |
| "org.osgi.service.startlevel", |
| new R4Directive[0], |
| new R4Attribute[] { new R4Attribute("version", "1.0.0", false) }); |
| |
| // Copy the class path exported packages. |
| System.arraycopy(classPathPkgs, 0, exports, 3, classPathPkgs.length); |
| |
| m_attributes = new Object[][] { |
| new Object[] { R4SearchPolicy.EXPORTS_ATTR, exports }, |
| new Object[] { R4SearchPolicy.IMPORTS_ATTR, new R4Package[0] } |
| }; |
| |
| m_resSources = new ResourceSource[0]; |
| |
| m_libSources = null; |
| |
| String exportString = ""; |
| for (int i = 0; i < exports.length; i++) |
| { |
| exportString = exportString + |
| exports[i].getId() |
| + "; specification-version=\"" |
| + exports[i].getVersionLow().toString() + "\""; |
| |
| if (i < (exports.length - 1)) |
| { |
| exportString = exportString + ", "; |
| exportString = exportString + |
| exports[i].getId() |
| + "; specification-version=\"" |
| + exports[i].getVersionLow().toString() + "\", "; |
| } |
| } |
| |
| // Initialize header map as a case insensitive map. |
| Map map = new CaseInsensitiveMap(); |
| map.put(FelixConstants.BUNDLE_VERSION, FelixConstants.FELIX_VERSION_VALUE); |
| map.put(FelixConstants.BUNDLE_NAME, "System Bundle"); |
| map.put(FelixConstants.BUNDLE_DESCRIPTION, |
| "This bundle is system specific; it implements various system services."); |
| map.put(FelixConstants.EXPORT_PACKAGE, exportString); |
| ((SystemBundleArchive) getInfo().getArchive()).setManifestHeader(map); |
| } |
| |
| public Object[][] getAttributes() |
| { |
| return m_attributes; |
| } |
| |
| public ResourceSource[] getResourceSources() |
| { |
| return m_resSources; |
| } |
| |
| public LibrarySource[] getLibrarySources() |
| { |
| return m_libSources; |
| } |
| |
| public synchronized void start() throws BundleException |
| { |
| // The system bundle is only started once and it |
| // is started by the framework. |
| if (getState() == Bundle.ACTIVE) |
| { |
| throw new BundleException("Cannot start the system bundle."); |
| } |
| |
| getInfo().setState(Bundle.STARTING); |
| |
| try { |
| getInfo().setContext(new BundleContextImpl(getFelix(), this)); |
| getActivator().start(getInfo().getContext()); |
| } catch (Throwable throwable) { |
| throwable.printStackTrace(); |
| throw new BundleException( |
| "Unable to start system bundle.", throwable); |
| } |
| |
| // Do NOT set the system bundle state to active yet, this |
| // must be done after all other bundles have been restarted. |
| // This will be done after the framework is initialized. |
| } |
| |
| public synchronized void stop() throws BundleException |
| { |
| if (System.getSecurityManager() != null) |
| { |
| AccessController.checkPermission(new AdminPermission()); |
| } |
| |
| // Spec says stop() on SystemBundle should return immediately and |
| // shutdown framework on another thread. |
| if (getFelix().getStatus() == Felix.RUNNING_STATUS) |
| { |
| // Initial call of stop, so kick off shutdown. |
| m_shutdownThread = new Thread("FelixShutdown") { |
| public void run() |
| { |
| try |
| { |
| getFelix().shutdown(); |
| } |
| catch (Exception ex) |
| { |
| getFelix().getLogger().log( |
| LogWrapper.LOG_ERROR, |
| "SystemBundle: Error while shutting down.", ex); |
| } |
| |
| // Only shutdown the JVM if the framework is running stand-alone. |
| String embedded = getFelix().getConfig() |
| .get(FelixConstants.EMBEDDED_EXECUTION_PROP); |
| boolean isEmbedded = (embedded == null) |
| ? false : embedded.equals("true"); |
| if (!isEmbedded) |
| { |
| if (System.getSecurityManager() != null) |
| { |
| AccessController.doPrivileged(new PrivilegedAction() { |
| public Object run() |
| { |
| System.exit(0); |
| return null; |
| } |
| }); |
| } |
| else |
| { |
| System.exit(0); |
| } |
| } |
| } |
| }; |
| getInfo().setState(Bundle.STOPPING); |
| m_shutdownThread.start(); |
| } |
| else if ((getFelix().getStatus() == Felix.STOPPING_STATUS) && |
| (Thread.currentThread() == m_shutdownThread)) |
| { |
| // Callback from shutdown thread, so do our own stop. |
| try |
| { |
| getActivator().stop(getInfo().getContext()); |
| } |
| catch (Throwable throwable) |
| { |
| throw new BundleException( |
| "Unable to stop system bundle.", throwable); |
| } |
| } |
| } |
| |
| public synchronized void uninstall() throws BundleException |
| { |
| throw new BundleException("Cannot uninstall the system bundle."); |
| } |
| |
| public synchronized void update() throws BundleException |
| { |
| update(null); |
| } |
| |
| public synchronized void update(InputStream is) throws BundleException |
| { |
| if (System.getSecurityManager() != null) |
| { |
| AccessController.checkPermission(new AdminPermission()); |
| } |
| |
| // TODO: This is supposed to stop and then restart the framework. |
| throw new BundleException("System bundle update not implemented yet."); |
| } |
| |
| protected BundleActivator getActivator() |
| throws Exception |
| { |
| if (m_activator == null) |
| { |
| m_activator = new SystemBundleActivator(getFelix(), m_activatorList); |
| } |
| return m_activator; |
| } |
| } |