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AspectJ tools most notably contains the AspectJ compiler (AJC). AJC applies aspects to Java classes during
compilation, fully replacing Javac for plain Java classes and also compiling native AspectJ or annotation-based
@AspectJ syntax. Furthermore, AJC can weave aspects into existing class files in a post-compile binary weaving step.
This library is a superset of AspectJ weaver and hence also of AspectJ runtime.
/*******************************************************************************
* Copyright (c) 2012, 2017 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.osgi.internal.framework;
import java.io.File;
import java.io.IOException;
import java.lang.ref.WeakReference;
import java.lang.reflect.Method;
import java.net.URL;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.WeakHashMap;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ThreadFactory;
import org.eclipse.osgi.framework.eventmgr.ListenerQueue;
import org.eclipse.osgi.framework.log.FrameworkLogEntry;
import org.eclipse.osgi.framework.util.SecureAction;
import org.eclipse.osgi.internal.connect.ConnectBundleFile;
import org.eclipse.osgi.internal.debug.Debug;
import org.eclipse.osgi.internal.hookregistry.ClassLoaderHook;
import org.eclipse.osgi.internal.hookregistry.HookRegistry;
import org.eclipse.osgi.internal.location.EquinoxLocations;
import org.eclipse.osgi.internal.log.EquinoxLogServices;
import org.eclipse.osgi.internal.messages.Msg;
import org.eclipse.osgi.internal.serviceregistry.ServiceRegistry;
import org.eclipse.osgi.signedcontent.SignedContentFactory;
import org.eclipse.osgi.storage.BundleInfo;
import org.eclipse.osgi.storage.Storage;
import org.eclipse.osgi.storage.bundlefile.MRUBundleFileList;
import org.eclipse.osgi.util.ManifestElement;
import org.eclipse.osgi.util.NLS;
import org.osgi.framework.AdminPermission;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleException;
import org.osgi.framework.Constants;
import org.osgi.framework.FrameworkUtil;
import org.osgi.framework.connect.ConnectContent;
import org.osgi.framework.connect.ConnectModule;
import org.osgi.framework.connect.ModuleConnector;
import org.osgi.util.tracker.ServiceTracker;
public class EquinoxContainer implements ThreadFactory, Runnable {
public static final String NAME = "org.eclipse.osgi"; //$NON-NLS-1$
static final SecureAction secureAction = AccessController.doPrivileged(SecureAction.createSecureAction());
private final ConnectModules connectModules;
private final EquinoxConfiguration equinoxConfig;
private final EquinoxLogServices logServices;
private final Storage storage;
private final Set bootDelegation;
private final String[] bootDelegationStems;
private final boolean bootDelegateAll;
private final boolean isProcessClassRecursionSupportedByAll;
private final EquinoxEventPublisher eventPublisher;
private final Object monitor = new Object();
private final ClassLoader bootLoader;
private ServiceRegistry serviceRegistry;
private ContextFinder contextFinder;
private ServiceTracker signedContentFactory;
private ScheduledExecutorService executor;
private StorageSaver storageSaver;
public EquinoxContainer(Map configuration, ModuleConnector moduleConnector) {
ClassLoader platformClassLoader = null;
try {
Method getPlatformClassLoader = ClassLoader.class.getMethod("getPlatformClassLoader"); //$NON-NLS-1$
platformClassLoader = (ClassLoader) getPlatformClassLoader.invoke(null);
} catch (Throwable t) {
// try everything possible to not fail
platformClassLoader = new ClassLoader(Object.class.getClassLoader()) {
/* boot class loader */};
}
this.bootLoader = platformClassLoader;
this.equinoxConfig = new EquinoxConfiguration(configuration, new HookRegistry(this));
this.logServices = new EquinoxLogServices(this.equinoxConfig);
this.equinoxConfig.logMessages(this.logServices);
this.connectModules = new ConnectModules(moduleConnector);
initConnectFramework(moduleConnector, this.equinoxConfig);
this.equinoxConfig.getHookRegistry().initialize();
try {
this.storage = Storage.createStorage(this);
} catch (Exception e) {
throw new IllegalStateException("Error initializing storage for Equinox container.", e); //$NON-NLS-1$
}
this.eventPublisher = new EquinoxEventPublisher(this);
// set the boot delegation according to the osgi boot delegation property
// TODO unfortunately this has to be done after constructing storage so the vm profile is loaded
// TODO ideally this should be in equinox configuration or perhaps in storage
String bootDelegationProp = equinoxConfig.getConfiguration(Constants.FRAMEWORK_BOOTDELEGATION);
String[] bootPackages = ManifestElement.getArrayFromList(bootDelegationProp, ","); //$NON-NLS-1$
HashSet exactMatch = new HashSet<>(bootPackages.length);
List stemMatch = new ArrayList<>(bootPackages.length);
boolean delegateAllValue = false;
for (String bootPackage : bootPackages) {
if (bootPackage.equals("*")) { //$NON-NLS-1$
delegateAllValue = true;
exactMatch.clear();
stemMatch.clear();
break;
} else if (bootPackage.endsWith("*")) { //$NON-NLS-1$
if (bootPackage.length() > 2 && bootPackage.endsWith(".*")) { //$NON-NLS-1$
stemMatch.add(bootPackage.substring(0, bootPackage.length() - 1));
}
} else {
exactMatch.add(bootPackage);
}
}
bootDelegateAll = delegateAllValue;
bootDelegation = exactMatch;
bootDelegationStems = stemMatch.isEmpty() ? null : stemMatch.toArray(new String[stemMatch.size()]);
// Detect if all hooks can support recursive class processing
boolean supportRecursion = true;
for (ClassLoaderHook hook : equinoxConfig.getHookRegistry().getClassLoaderHooks()) {
supportRecursion &= hook.isProcessClassRecursionSupported();
}
isProcessClassRecursionSupportedByAll = supportRecursion;
}
private static void initConnectFramework(ModuleConnector moduleConnector, EquinoxConfiguration equinoxConfig) {
if (moduleConnector == null) {
return;
}
URL configUrl = equinoxConfig.getEquinoxLocations().getConfigurationLocation().getURL();
final File fwkStore = new File(configUrl.getPath());
@SuppressWarnings({"rawtypes", "unchecked"})
Map config = (Map) equinoxConfig.getInitialConfig();
moduleConnector.initialize(fwkStore, Collections.unmodifiableMap(config));
}
public Storage getStorage() {
return storage;
}
public EquinoxConfiguration getConfiguration() {
return equinoxConfig;
}
public EquinoxLocations getLocations() {
return equinoxConfig.getEquinoxLocations();
}
public EquinoxLogServices getLogServices() {
return logServices;
}
public Bundle getBundle(Class clazz) {
Bundle b = FrameworkUtil.getBundle(clazz);
if (b != null) {
return b;
}
// check if it is the system bundle
return AccessController.doPrivileged((PrivilegedAction) () -> {
if (clazz.getClassLoader() == EquinoxContainer.class.getClassLoader()) {
return getStorage().getModuleContainer().getModule(0).getBundle();
}
return null;
});
}
public SignedContentFactory getSignedContentFactory() {
ServiceTracker current;
synchronized (this.monitor) {
current = signedContentFactory;
}
return current == null ? null : current.getService();
}
public boolean isBootDelegationPackage(String name) {
if (bootDelegateAll)
return true;
if (bootDelegation.contains(name))
return true;
if (bootDelegationStems != null)
for (String bootDelegationStem : bootDelegationStems) {
if (name.startsWith(bootDelegationStem)) {
return true;
}
}
return false;
}
public boolean isProcessClassRecursionSupportedByAll() {
return isProcessClassRecursionSupportedByAll;
}
void init() {
eventPublisher.init();
synchronized (this.monitor) {
serviceRegistry = new ServiceRegistry(this);
initializeContextFinder();
executor = Executors.newScheduledThreadPool(1, this);
// be sure to initialize the executor threads
executor.execute(this);
storageSaver = new StorageSaver(this);
}
}
void close() {
StorageSaver currentSaver;
Storage currentStorage;
ScheduledExecutorService currentExecutor;
synchronized (this.monitor) {
serviceRegistry = null;
currentSaver = storageSaver;
currentStorage = storage;
currentExecutor = executor;
}
// do this outside of the lock to avoid deadlock
currentSaver.close();
currentStorage.close();
// Must be done last since it will result in termination of the
// framework active thread.
currentExecutor.shutdown();
}
private void initializeContextFinder() {
Thread current = Thread.currentThread();
try {
ClassLoader parent = null;
// check property for specified parent
String type = equinoxConfig.getConfiguration(EquinoxConfiguration.PROP_CONTEXTCLASSLOADER_PARENT);
if (EquinoxConfiguration.CONTEXTCLASSLOADER_PARENT_APP.equals(type))
parent = ClassLoader.getSystemClassLoader();
else if (EquinoxConfiguration.CONTEXTCLASSLOADER_PARENT_BOOT.equals(type))
parent = bootLoader;
else if (EquinoxConfiguration.CONTEXTCLASSLOADER_PARENT_FWK.equals(type))
parent = EquinoxContainer.class.getClassLoader();
else if (EquinoxConfiguration.CONTEXTCLASSLOADER_PARENT_EXT.equals(type)) {
ClassLoader appCL = ClassLoader.getSystemClassLoader();
if (appCL != null)
parent = appCL.getParent();
} else { // default is ccl (null or any other value will use ccl)
parent = current.getContextClassLoader();
}
contextFinder = new ContextFinder(parent, bootLoader);
current.setContextClassLoader(contextFinder);
return;
} catch (Exception e) {
logServices.log(NAME, FrameworkLogEntry.INFO, NLS.bind(Msg.CANNOT_SET_CONTEXTFINDER, null), e);
}
}
public EquinoxEventPublisher getEventPublisher() {
synchronized (this.monitor) {
return eventPublisher;
}
}
ScheduledExecutorService getScheduledExecutor() {
synchronized (this.monitor) {
return executor;
}
}
public ServiceRegistry getServiceRegistry() {
synchronized (this.monitor) {
return serviceRegistry;
}
}
public ContextFinder getContextFinder() {
synchronized (this.monitor) {
return contextFinder;
}
}
public ListenerQueue newListenerQueue() {
return eventPublisher.newListenerQueue();
}
void checkAdminPermission(Bundle bundle, String action) {
if (bundle == null)
return;
SecurityManager sm = System.getSecurityManager();
if (sm != null)
sm.checkPermission(new AdminPermission(bundle, action));
}
public void handleRuntimeError(Throwable t) {
// TODO need to call some hook here
}
void systemStart(BundleContext bc) {
synchronized (this.monitor) {
signedContentFactory = new ServiceTracker<>(bc, SignedContentFactory.class, null);
}
signedContentFactory.open();
}
void systemStop(BundleContext bc) {
ServiceTracker current;
synchronized (this.monitor) {
current = signedContentFactory;
}
if (current != null) {
current.close();
}
}
@Override
public String toString() {
String UUID = equinoxConfig == null ? null : equinoxConfig.getConfiguration(Constants.FRAMEWORK_UUID);
return "Equinox Container: " + UUID; //$NON-NLS-1$
}
StorageSaver getStorageSaver() {
synchronized (this.monitor) {
return storageSaver;
}
}
@Override
public Thread newThread(Runnable r) {
String type = equinoxConfig.getConfiguration(EquinoxConfiguration.PROP_ACTIVE_THREAD_TYPE, EquinoxConfiguration.ACTIVE_THREAD_TYPE_NORMAL);
Thread t = new Thread(r, "Active Thread: " + toString()); //$NON-NLS-1$
if (EquinoxConfiguration.ACTIVE_THREAD_TYPE_NORMAL.equals(type)) {
t.setDaemon(false);
} else {
t.setDaemon(true);
}
t.setPriority(Thread.NORM_PRIORITY);
return t;
}
@Override
public void run() {
// Do nothing; just used to ensure the active thread is created during init
}
public ClassLoader getBootLoader() {
return bootLoader;
}
public ConnectModules getConnectModules() {
return connectModules;
}
public static class ConnectModules {
final ModuleConnector moduleConnector;
private final ConcurrentMap connectModules = new ConcurrentHashMap<>();
private final WeakHashMap> contents = new WeakHashMap<>();
public ConnectModules(ModuleConnector moduleConnector) {
this.moduleConnector = moduleConnector;
}
public ConnectModule connect(String location) {
if (moduleConnector == null) {
return null;
}
ConnectModule result = connectModules.compute(location, (k, v) -> {
try {
return moduleConnector.connect(location).orElse(null);
} catch (BundleException e) {
throw new IllegalStateException(e);
}
});
return result;
}
public ConnectBundleFile getConnectBundleFile(ConnectModule module, File basefile,
BundleInfo.Generation generation, MRUBundleFileList mruList, Debug debug) throws IOException {
ConnectContent content = module.getContent();
synchronized (contents) {
WeakReference ref = contents.get(content);
if (ref != null) {
ConnectBundleFile bundleFile = ref.get();
if (bundleFile != null) {
return bundleFile;
}
}
ConnectBundleFile bundleFile = new ConnectBundleFile(module, basefile, generation, mruList, debug);
contents.put(content, new WeakReference<>(bundleFile));
return bundleFile;
}
}
public ModuleConnector getModuleConnector() {
return moduleConnector;
}
public ConnectModule getConnectModule(String location) {
return connectModules.get(location);
}
}
@SuppressWarnings("unchecked")
public static void sneakyThrow(Throwable e) throws E {
throw (E) e;
}
}