diff options
Diffstat (limited to 'sandbox/ant/sca/tags/2.0-M2/modules/implementation-osgi-runtime/src/main/java/org/apache/tuscany/sca/implementation/osgi/runtime/OSGiImplementationProvider.java')
| -rw-r--r-- | sandbox/ant/sca/tags/2.0-M2/modules/implementation-osgi-runtime/src/main/java/org/apache/tuscany/sca/implementation/osgi/runtime/OSGiImplementationProvider.java | 850 |
1 files changed, 0 insertions, 850 deletions
diff --git a/sandbox/ant/sca/tags/2.0-M2/modules/implementation-osgi-runtime/src/main/java/org/apache/tuscany/sca/implementation/osgi/runtime/OSGiImplementationProvider.java b/sandbox/ant/sca/tags/2.0-M2/modules/implementation-osgi-runtime/src/main/java/org/apache/tuscany/sca/implementation/osgi/runtime/OSGiImplementationProvider.java deleted file mode 100644 index b00aabde39..0000000000 --- a/sandbox/ant/sca/tags/2.0-M2/modules/implementation-osgi-runtime/src/main/java/org/apache/tuscany/sca/implementation/osgi/runtime/OSGiImplementationProvider.java +++ /dev/null @@ -1,850 +0,0 @@ -/* - * 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.apache.tuscany.sca.implementation.osgi.runtime; - -import java.lang.reflect.Method; -import java.security.AccessController; -import java.security.PrivilegedActionException; -import java.security.PrivilegedExceptionAction; -import java.util.ArrayList; -import java.util.Dictionary; -import java.util.HashSet; -import java.util.Hashtable; -import java.util.List; -import java.util.Map; -import java.util.concurrent.atomic.AtomicInteger; - -import org.apache.tuscany.sca.assembly.Component; -import org.apache.tuscany.sca.assembly.ComponentReference; -import org.apache.tuscany.sca.assembly.ComponentService; -import org.apache.tuscany.sca.assembly.Extensible; -import org.apache.tuscany.sca.assembly.Multiplicity; -import org.apache.tuscany.sca.assembly.Reference; -import org.apache.tuscany.sca.assembly.Service; -import org.apache.tuscany.sca.core.factory.ObjectCreationException; -import org.apache.tuscany.sca.core.invocation.ProxyFactory; -import org.apache.tuscany.sca.core.invocation.ProxyFactoryExtensionPoint; -import org.apache.tuscany.sca.core.scope.Scope; -import org.apache.tuscany.sca.implementation.osgi.OSGiImplementation; -import org.apache.tuscany.sca.implementation.osgi.OSGiProperty; -import org.apache.tuscany.sca.interfacedef.Interface; -import org.apache.tuscany.sca.interfacedef.Operation; -import org.apache.tuscany.sca.interfacedef.java.JavaInterface; -import org.apache.tuscany.sca.invocation.Invoker; -import org.apache.tuscany.sca.provider.ImplementationProvider; -import org.apache.tuscany.sca.runtime.EndpointReference; -import org.apache.tuscany.sca.runtime.RuntimeComponent; -import org.apache.tuscany.sca.runtime.RuntimeComponentReference; -import org.apache.tuscany.sca.runtime.RuntimeComponentService; -import org.apache.tuscany.sca.runtime.RuntimeWire; -import org.osgi.framework.Bundle; -import org.osgi.framework.BundleContext; -import org.osgi.framework.BundleEvent; -import org.osgi.framework.BundleException; -import org.osgi.framework.BundleListener; -import org.osgi.framework.Constants; -import org.osgi.framework.FrameworkEvent; -import org.osgi.framework.FrameworkListener; -import org.osgi.framework.InvalidSyntaxException; -import org.osgi.framework.ServiceEvent; -import org.osgi.framework.ServiceListener; -import org.osgi.framework.ServiceReference; -import org.osgi.service.packageadmin.PackageAdmin; - -/** - * The runtime instantiation of OSGi component implementations - * - * @version $Rev$ $Date$ - */ -public class OSGiImplementationProvider implements ImplementationProvider, FrameworkListener, BundleListener { - - private static final String COMPONENT_SERVICE_NAME = "component.service.name"; - - // Maximum milliseconds to wait for a method to complete - private static final long METHOD_TIMEOUT_MILLIS = 60000; - // Maximum milliseconds to wait for services to be registered into OSGi service registry - private static final long SERVICE_TIMEOUT_MILLIS = 300000; - - private OSGiImplementation implementation; - private Hashtable<RuntimeWire, Reference> referenceWires = new Hashtable<RuntimeWire, Reference>(); - private Hashtable<RuntimeWire, ComponentReference> componentReferenceWires = - new Hashtable<RuntimeWire, ComponentReference>(); - private HashSet<RuntimeWire> resolvedWires = new HashSet<RuntimeWire>(); - private boolean wiresResolved; - - private AtomicInteger startBundleEntryCount = new AtomicInteger(); - - private Hashtable<String, Object> componentProperties = new Hashtable<String, Object>(); - private RuntimeComponent runtimeComponent; - - Bundle osgiBundle; - private ArrayList<Bundle> dependentBundles = new ArrayList<Bundle>(); - private OSGiServiceListener osgiServiceListener; - private PackageAdmin packageAdmin; - - private ProxyFactoryExtensionPoint proxyFactoryExtensionPoint; - - private boolean packagesRefreshed; - - public OSGiImplementationProvider(RuntimeComponent component, - OSGiImplementation impl, - ProxyFactoryExtensionPoint proxyFactoryExtensionPoint) throws BundleException { - - this.implementation = impl; - this.runtimeComponent = component; - this.proxyFactoryExtensionPoint = proxyFactoryExtensionPoint; - - BundleContext bundleContext = OSGiImplementationRuntimeActivator.getBundleContext(); - osgiBundle = (Bundle)implementation.getBundle(); - bundleContext.addBundleListener(this); - osgiServiceListener = new OSGiServiceListener(osgiBundle); - bundleContext.addServiceListener(osgiServiceListener); - - // PackageAdmin is used to resolve bundles - org.osgi.framework.ServiceReference packageAdminReference = - bundleContext.getServiceReference("org.osgi.service.packageadmin.PackageAdmin"); - if (packageAdminReference != null) { - packageAdmin = (PackageAdmin)bundleContext.getService(packageAdminReference); - bundleContext.addFrameworkListener(this); - } - - } - - protected RuntimeComponent getRuntimeComponent() { - return runtimeComponent; - } - - protected OSGiImplementation getImplementation() { - return implementation; - } - - private String getOSGiFilter(Hashtable<String, Object> props) { - - String filter = ""; - - if (props != null && props.size() > 0) { - int propCount = 0; - for (String propName : props.keySet()) { - if (propName.equals("service.pid")) - continue; - filter = filter + "(" + propName + "=" + props.get(propName) + ")"; - propCount++; - } - - if (propCount > 1) - filter = "(&" + filter + ")"; - } else - filter = null; - return filter; - } - - /* - * Return a matching service registered by the specified bundle. - * If <implementation.osgi /> has the attribute filter defined, return a service - * reference that matches the filter. Otherwise, return a service which has a component - * name equal to this component's name. If not found, return a service which no - * component name set. - * - * Even though services registered by this bundle can be filtered using the - * service listener, we use this method to filter all service references so that - * the service matching functionality of OSGi can be directly used. - */ - private ServiceReference getOSGiServiceReference(String scaServiceName, - String osgiServiceName, - String filter) throws InvalidSyntaxException { - - String compServiceName = runtimeComponent.getName() + "/" + scaServiceName; - if (filter != null && filter.length() > 0) { - org.osgi.framework.ServiceReference[] references = - osgiBundle.getBundleContext().getServiceReferences(osgiServiceName, filter); - - ServiceReference reference = null; - if (references != null) { - for (ServiceReference ref : references) { - if (ref.getBundle() != osgiBundle) - continue; - Object compName = ref.getProperty(COMPONENT_SERVICE_NAME); - if (compName == null && reference == null) - reference = ref; - if (scaServiceName == null || compServiceName.equals(compName)) { - reference = ref; - break; - } - } - } - - return reference; - - } - - filter = scaServiceName == null ? null : "(" + COMPONENT_SERVICE_NAME + "=" + compServiceName + ")"; - - ServiceReference[] references = - osgiBundle.getBundleContext().getServiceReferences(osgiServiceName, filter); - - if (references != null) { - for (ServiceReference ref : references) { - if (ref.getBundle() == osgiBundle) { - return ref; - } - } - } - - references = osgiBundle.getBundleContext().getServiceReferences(osgiServiceName, null); - - ServiceReference reference = null; - - if (references != null) { - for (ServiceReference ref : references) { - - if (ref.getBundle() != osgiBundle) - continue; - Object compName = ref.getProperty(COMPONENT_SERVICE_NAME); - if (compName == null && reference == null) - reference = ref; - if (compServiceName.equals(compName)) { - reference = ref; - break; - } - } - } - - return reference; - } - - /** - * This method is used to avoid full synchronization of methods which should - * be executed only once. - * - * entryCount=0: The count is incremented, and this thread executes the method. Returns true. - * - * entryCount=1: Another thread is already executing this method. - * Wait for the thread to complete if doWait is true. Returns false. - * - * entryCount=2: The method has already been executed. Returns false. - * - * @param doWait If true, and another method is executing this method - * wait for method execution to complete - * @param entryCount Atomic integer used to ensure that the method is - * executed only once - * @return true if this thread has exclusive access to execute this method - */ - private boolean enterMethod(boolean doWait, AtomicInteger entryCount) { - - if (entryCount.compareAndSet(0, 1)) { - return true; - } else { - if (doWait) { - synchronized (entryCount) { - if (entryCount.get() != 2) { - try { - entryCount.wait(METHOD_TIMEOUT_MILLIS); - } catch (InterruptedException e) { - } - } - } - } - return false; - } - } - - /** - * Called on method exit of methods which were entered after - * enterMethod returned true. Increments entryCount, and wakes - * up threads waiting for the method to complete. - * - * @param entryCount Atomic integer used for synchronization - */ - private void exitMethod(AtomicInteger entryCount) { - entryCount.compareAndSet(1, 2); - synchronized (entryCount) { - entryCount.notifyAll(); - } - } - - protected Bundle startBundle(boolean doWait) throws ObjectCreationException { - - try { - - if (enterMethod(doWait, startBundleEntryCount)) { - - configurePropertiesUsingConfigAdmin(); - - resolveBundle(); - - for (Bundle bundle : dependentBundles) { - try { - if (bundle.getState() != Bundle.ACTIVE && bundle.getState() != Bundle.STARTING) { - bundle.start(); - } - } catch (BundleException e) { - if (bundle.getHeaders().get("Fragment-Host") == null) - throw e; - } - } - - } - - if (osgiBundle.getState() != Bundle.ACTIVE && osgiBundle.getState() != Bundle.STARTING) { - - int retry = 0; - - while (retry++ < 10) { - try { - AccessController.doPrivileged(new PrivilegedExceptionAction<Object>() { - public Object run() throws BundleException { - osgiBundle.start(); - return null; - } - }); - break; - // } catch ( BundleException e) { - } catch (PrivilegedActionException e) { - // It is possible that the thread "Refresh Packages" is in the process of - // changing the state of this bundle. - Thread.yield(); - - if (retry == 10) - throw e; - } - } - } - - } catch (Exception e) { - throw new ObjectCreationException(e); - } finally { - exitMethod(startBundleEntryCount); - } - return osgiBundle; - } - - // This method is called by OSGiInstanceWrapper.getInstance to obtain the OSGi service reference - // corresponding to the specified service. The properties used to filter the service should - // be chosen based on whether this is a normal service or a callback. - /** - * @param component - * @param service - * @return - */ - protected ServiceReference getOSGiServiceReference(Component component, ComponentService service) - throws ObjectCreationException { - - Hashtable<String, Object> props = getOSGiProperties(service); - - String filter = getOSGiFilter(props); - Interface serviceInterface = service.getInterfaceContract().getInterface(); - String scaServiceName = service.getName(); - - return getOSGiServiceReference(serviceInterface, filter, scaServiceName); - - } - - /** - * Get all the OSGi properties from the extension list - * @param extensible - * @return - */ - private Hashtable<String, Object> getOSGiProperties(Extensible extensible) { - Hashtable<String, Object> props = new Hashtable<String, Object>(); - for (Object ext : extensible.getExtensions()) { - if (ext instanceof OSGiProperty) { - OSGiProperty p = (OSGiProperty)ext; - props.put(p.getName(), p.getValue()); - } - } - return props; - } - - protected ServiceReference getOSGiServiceReference(EndpointReference from, Interface callbackInterface) - throws ObjectCreationException { - - RuntimeWire refWire = null; - String filter = null; - for (RuntimeWire wire : referenceWires.keySet()) { - if (wire.getSource() == from) { - refWire = wire; - break; - } - } - if (refWire != null) { - ComponentReference scaRef = componentReferenceWires.get(refWire); - Hashtable<String, Object> props = getOSGiProperties(scaRef); - filter = getOSGiFilter(props); - } - - return getOSGiServiceReference(callbackInterface, filter, null); - } - - private ServiceReference getOSGiServiceReference(Interface serviceInterface, String filter, String scaServiceName) - throws ObjectCreationException { - - try { - - String serviceInterfaceName = null; - - ServiceReference osgiServiceReference = null; - - if (serviceInterface instanceof JavaInterface) { - serviceInterfaceName = ((JavaInterface)serviceInterface).getJavaClass().getName(); - - if ((osgiServiceReference = getOSGiServiceReference(scaServiceName, serviceInterfaceName, filter)) == null) { - - // The service listener for our bundle will notify us when the service is registered. - synchronized (implementation) { - - // When declarative services are used, the component is started asynchronously - // So this thread has to wait for the service to be registered by the component - // activate method - // For regular bundle activators, bundle.start activates the bundle synchronously - // and hence the service would probably have been started by the bundle activator - long startTime = System.currentTimeMillis(); - while ((osgiServiceReference = - getOSGiServiceReference(scaServiceName, serviceInterfaceName, filter)) == null) { - - // Wait for the bundle to register the service - implementation.wait(100); - if (System.currentTimeMillis() - startTime > SERVICE_TIMEOUT_MILLIS) - break; - } - } - - } - } - - return osgiServiceReference; - - } catch (Exception e) { - throw new ObjectCreationException(e); - } - } - - /** - * For OSGi->Java wires, create a proxy corresponding to the Java interfaces - * and register the proxy with the OSGi registry, so that the source OSGi bundle can - * locate the target Java instance from the registry like a regular OSGi service. - * - * For OSGi->OSGi wires, start the target OSGi bundle, so that references of the - * target are resolved before the source OSGi bundle is started. If the reference - * has properties specified, create a Proxy and register a service with highest - * possible ranking. The Proxy should wire to the correct OSGi instance specified - * in the SCA composite. - * - * The first phase determines whether a proxy should be installed. It also registers - * a dummy bundle if necessary to resolve the bundle. When phase1 is completed on all - * wires of the component, the bundle should be resolved. Phase2 registers the proxy service. - */ - private boolean resolveWireResolveReferences(Bundle bundle, - Class<?> interfaceClass, - RuntimeWire wire, - boolean isOSGiToOSGiWire) throws Exception { - - // FIXME: At the moment injection of values into instances require an instance to be obtained - // through the instance wrapper, and hence requires a proxy. When we do this processing here, - // we don't yet know whether the target requires any property or callback injection. So it is - // safer to create a proxy all the time. - boolean createProxy = true; - - ComponentReference scaRef = componentReferenceWires.get(wire); - Hashtable<String, Object> targetProperties = getOSGiProperties(scaRef); - - if (isOSGiToOSGiWire) { - - OSGiImplementationProvider implProvider = - (OSGiImplementationProvider)wire.getTarget().getComponent().getImplementationProvider(); - - // This is an OSGi->OSGi wire - isOSGiToOSGiWire = true; - - // If the target component is stateless, use a proxy to create a new service each time - if (!implProvider.getScope().equals(Scope.COMPOSITE)) - createProxy = true; - - Interface interfaze = wire.getTarget().getInterfaceContract().getInterface(); - - // If the target interface is remotable, create a proxy to support pass-by-value semantics - // AllowsPassByReference is not detected until the target instance is obtained. - if (interfaze.isRemotable()) - createProxy = true; - - // If any of the operations in the target interface is non-blocking, create a proxy - List<Operation> ops = interfaze.getOperations(); - for (Operation op : ops) { - if (op.isNonBlocking()) - createProxy = true; - } - - // If properties are specified for the reference, create a proxy since rewiring may be required - if (targetProperties.size() > 0) { - createProxy = true; - } - - // If properties are specified for the component, create a proxy for configuring - // the component services. - if (componentProperties.size() > 0) { - createProxy = true; - } - - // Since this is an OSGi->OSGi wire, start the target bundle before starting the - // source bundle if there is no proxy. For direct wiring without a proxy, this ordering - // is irrelevant in terms of class resolution, but the target needs to be started at some - // point. But there is no opportunity later on to start the target OSGi bundle without a proxy. - // When a Proxy is used, the target bundle needs to be resolved for the source bundle - // to be resolved so that the interface is visible to the source. In this case the bundle - // will be started when an instance is needed. - if (!createProxy) { - implProvider.startBundle(false); - } else { - implProvider.resolveBundle(); - } - } else { - createProxy = true; - } - - return createProxy; - } - - // Register proxy service - private void resolveWireRegisterProxyService(final Bundle bundle, final Class interfaceClass, RuntimeWire wire) - throws Exception { - - ComponentReference scaRef = componentReferenceWires.get(wire); - Hashtable<String, Object> targetProperties = getOSGiProperties(scaRef); - targetProperties.put(Constants.SERVICE_RANKING, Integer.MAX_VALUE); - - if (targetProperties.get(COMPONENT_SERVICE_NAME) == null && wire.getTarget().getComponent() != null) { - String compServiceName = - wire.getTarget().getComponent().getName() + "/" + wire.getTarget().getContract().getName(); - targetProperties.put(COMPONENT_SERVICE_NAME, compServiceName); - } - - ProxyFactory proxyService = proxyFactoryExtensionPoint.getInterfaceProxyFactory(); - if (!interfaceClass.isInterface()) { - proxyService = proxyFactoryExtensionPoint.getClassProxyFactory(); - } - - // Allow privileged access to load classes. Requires getClassLoader permission in security - // policy. - final Class<?> proxyInterface = AccessController.doPrivileged(new PrivilegedExceptionAction<Class<?>>() { - public Class<?> run() throws Exception { - return bundle.loadClass(interfaceClass.getName()); - } - }); - - final Object proxy = proxyService.createProxy(proxyInterface, wire); - final Hashtable<String, Object> finalTargetProperties = targetProperties; - AccessController.doPrivileged(new PrivilegedExceptionAction<Object>() { - public Object run() throws Exception { - osgiBundle.getBundleContext().registerService(proxyInterface.getName(), proxy, finalTargetProperties); - return null; - } - }); - - } - - private void refreshPackages() { - - if (packageAdmin != null) { - synchronized (this) { - packagesRefreshed = false; - packageAdmin.refreshPackages(null); - - if (!packagesRefreshed) { - try { - this.wait(2000); - } catch (InterruptedException e) { - // ignore - } - } - packagesRefreshed = false; - } - } - } - - private void resolveBundle() throws ObjectCreationException { - - try { - - if (!wiresResolved) { - wiresResolved = true; - - if (!setReferencesAndProperties()) { - wiresResolved = false; - return; - } - - int refPlusServices = referenceWires.size() + runtimeComponent.getServices().size(); - boolean[] createProxyService = new boolean[refPlusServices]; - Class<?>[] interfaceClasses = new Class<?>[refPlusServices]; - boolean[] isOSGiToOSGiWire = new boolean[refPlusServices]; - boolean[] wireResolved = new boolean[refPlusServices]; - int index = 0; - for (RuntimeWire wire : referenceWires.keySet()) { - - Reference reference = referenceWires.get(wire); - - isOSGiToOSGiWire[index] = - wire.getTarget().getComponent() != null && wire.getTarget().getComponent() - .getImplementationProvider() instanceof OSGiImplementationProvider; - - Interface refInterface = reference.getInterfaceContract().getInterface(); - if (refInterface instanceof JavaInterface) { - interfaceClasses[index] = ((JavaInterface)refInterface).getJavaClass(); - - // if (!isOSGiToOSGiWire[index]) - // resolveWireCreateDummyBundles(interfaceClasses[index]); - - } - - if (!resolvedWires.contains(wire)) { - resolvedWires.add(wire); - } else - wireResolved[index] = true; - - index++; - } - for (ComponentService service : runtimeComponent.getServices()) { - Interface callbackInterface = service.getInterfaceContract().getCallbackInterface(); - if (callbackInterface instanceof JavaInterface) { - interfaceClasses[index] = ((JavaInterface)callbackInterface).getJavaClass(); - -// resolveWireCreateDummyBundles(interfaceClasses[index]); - } - - index++; - } - - index = 0; - for (RuntimeWire wire : referenceWires.keySet()) { - - if (!wireResolved[index]) { - createProxyService[index] = - resolveWireResolveReferences(osgiBundle, - interfaceClasses[index], - wire, - isOSGiToOSGiWire[index]); - } - index++; - } - - refreshPackages(); - - index = 0; - for (RuntimeWire wire : referenceWires.keySet()) { - - if (createProxyService[index] && !wireResolved[index]) - resolveWireRegisterProxyService(osgiBundle, interfaceClasses[index], wire); - index++; - } - } else if (osgiBundle.getState() == Bundle.INSTALLED && packageAdmin != null) { - packageAdmin.resolveBundles(new Bundle[] {osgiBundle}); - } - - } catch (Exception e) { - e.printStackTrace(); - throw new ObjectCreationException(e); - } - } - - @SuppressWarnings("unchecked") - private void configurePropertiesUsingConfigAdmin() { - - try { - - if (componentProperties.size() == 0) - return; - - ServiceReference configAdminReference = - osgiBundle.getBundleContext().getServiceReference("org.osgi.service.cm.ConfigurationAdmin"); - if (configAdminReference != null) { - - Object cm = osgiBundle.getBundleContext().getService(configAdminReference); - Class cmClass = cm.getClass().getClassLoader().loadClass("org.osgi.service.cm.ConfigurationAdmin"); - Method getConfigMethod = cmClass.getMethod("getConfiguration", String.class, String.class); - - Class configClass = cm.getClass().getClassLoader().loadClass("org.osgi.service.cm.Configuration"); - - Method getMethod = configClass.getMethod("getProperties"); - Method updateMethod = configClass.getMethod("update", Dictionary.class); - - List<Service> services = implementation.getServices(); - HashSet<String> pidsProcessed = new HashSet<String>(); - - for (Service service : services) { - - Hashtable<String, Object> properties = getOSGiProperties(service); - String pid = null; - - if (properties != null) { - for (Map.Entry<String, Object> prop : properties.entrySet()) { - pid = (String)prop.getValue(); - } - } - if (pid == null || pidsProcessed.contains(pid)) - continue; - - Object config = getConfigMethod.invoke(cm, pid, null); - Dictionary props = (Dictionary)getMethod.invoke(config); - if (props == null) { - props = new Hashtable<String, Object>(); - } - for (String propertyName : componentProperties.keySet()) { - - props.put(propertyName, componentProperties.get(propertyName)); - } - - updateMethod.invoke(config, props); - - } - - } - - } catch (Exception e) { - e.printStackTrace(); - } - - } - - public boolean isOptimizable() { - return false; - } - - public Scope getScope() { - return Scope.COMPOSITE; - } - - public boolean isEagerInit() { - return false; - } - - public long getMaxAge() { - return 0l; - } - - public long getMaxIdleTime() { - return 0l; - } - - public Invoker createTargetInvoker(RuntimeComponentService service, Operation operation) { - Interface serviceInterface = operation.getInterface(); - Invoker invoker = new OSGiTargetInvoker(operation, this, service); - return invoker; - } - - public Invoker createInvoker(RuntimeComponentService service, Operation operation) { - return createTargetInvoker(service, operation); - } - - public boolean supportsOneWayInvocation() { - return false; - } - - private boolean setReferencesAndProperties() { - - for (Reference ref : implementation.getReferences()) { - List<RuntimeWire> wireList = null; - ComponentReference compRef = null; - for (ComponentReference cRef : runtimeComponent.getReferences()) { - if (cRef.getName().equals(ref.getName())) { - - wireList = ((RuntimeComponentReference)cRef).getRuntimeWires(); - - compRef = cRef; - break; - } - } - - if (ref.getMultiplicity() == Multiplicity.ONE_N || ref.getMultiplicity() == Multiplicity.ZERO_N) { - for (RuntimeWire wire : wireList) { - referenceWires.put(wire, ref); - componentReferenceWires.put(wire, compRef); - } - - } else { - if (wireList == null && ref.getMultiplicity() == Multiplicity.ONE_ONE) { - throw new IllegalStateException("Required reference is missing: " + ref.getName()); - } - if (wireList != null && !wireList.isEmpty()) { - RuntimeWire wire = wireList.get(0); - referenceWires.put(wire, ref); - componentReferenceWires.put(wire, compRef); - } - - } - - } - - componentProperties = getOSGiProperties(runtimeComponent); - - return true; - - } - - public void start() { - setReferencesAndProperties(); - } - - public void stop() { - - if (osgiServiceListener != null) { - OSGiImplementationRuntimeActivator.getBundleContext().removeServiceListener(osgiServiceListener); - } - } - - public void frameworkEvent(FrameworkEvent event) { - if (event.getType() == FrameworkEvent.PACKAGES_REFRESHED) { - synchronized (this) { - packagesRefreshed = true; - this.notifyAll(); - } - } - - } - - public void bundleChanged(BundleEvent event) { - if (event.getType() == BundleEvent.RESOLVED && event.getBundle() == osgiBundle) { - // TODO - } - } - - private class OSGiServiceListener implements ServiceListener { - - private Bundle bundle; - - OSGiServiceListener(Bundle bundle) { - this.bundle = bundle; - } - - public void serviceChanged(org.osgi.framework.ServiceEvent event) { - - ServiceReference reference = event.getServiceReference(); - - if (event.getType() == ServiceEvent.REGISTERED && reference.getBundle() == bundle) { - - synchronized (implementation) { - - implementation.notifyAll(); - } - } - - if (event.getType() == ServiceEvent.UNREGISTERING && reference.getBundle() == bundle) { - // TODO: Process deregistering of OSGi services. - } - } - } -} |