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Posted to commits@felix.apache.org by pd...@apache.org on 2014/03/07 19:43:10 UTC
svn commit: r1575363 -
/felix/sandbox/pderop/dependencymanager-prototype/dm/src/dm/impl/FilterComponent.java
Author: pderop
Date: Fri Mar 7 18:43:09 2014
New Revision: 1575363
URL: http://svn.apache.org/r1575363
Log:
added this classe from old codebase, and renamed the old FilterService name to FilterComponent
Added:
felix/sandbox/pderop/dependencymanager-prototype/dm/src/dm/impl/FilterComponent.java
Added: felix/sandbox/pderop/dependencymanager-prototype/dm/src/dm/impl/FilterComponent.java
URL: http://svn.apache.org/viewvc/felix/sandbox/pderop/dependencymanager-prototype/dm/src/dm/impl/FilterComponent.java?rev=1575363&view=auto
==============================================================================
--- felix/sandbox/pderop/dependencymanager-prototype/dm/src/dm/impl/FilterComponent.java (added)
+++ felix/sandbox/pderop/dependencymanager-prototype/dm/src/dm/impl/FilterComponent.java Fri Mar 7 18:43:09 2014
@@ -0,0 +1,293 @@
+/*
+ * 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 dm.impl;
+
+import java.util.Dictionary;
+import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.ServiceRegistration;
+
+import dm.Component;
+import dm.ComponentStateListener;
+import dm.Dependency;
+import dm.DependencyManager;
+import dm.admin.ComponentDeclaration;
+import dm.admin.ComponentDependencyDeclaration;
+import dm.context.ComponentContext;
+import dm.context.DependencyContext;
+
+/**
+ * This class allows to filter a Component interface. All Aspect/Adapters extend this class
+ * in order to add functionality to the default Component implementation.
+ *
+ * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a>
+ */
+public class FilterComponent implements Component, ComponentContext, ComponentDeclaration {
+ protected volatile ComponentImpl m_component;
+ protected volatile List<ComponentStateListener> m_stateListeners = new CopyOnWriteArrayList();
+ protected volatile String m_init = "init";
+ protected volatile String m_start = "start";
+ protected volatile String m_stop = "stop";
+ protected volatile String m_destroy = "destroy";
+ protected volatile Object m_callbackObject;
+ protected volatile Object m_compositionInstance;
+ protected volatile String m_compositionMethod;
+ protected volatile String[] m_serviceInterfaces;
+ protected volatile Object m_serviceImpl;
+ protected volatile Object m_factory;
+ protected volatile String m_factoryCreateMethod;
+ protected volatile Dictionary<?,?> m_serviceProperties;
+
+ public FilterComponent(Component service) {
+ m_component = (ComponentImpl) service;
+ }
+
+ public Component add(Dependency ... dependencies) {
+ m_component.add(dependencies);
+ // Add the dependencies to all already instantiated services.
+ // If one dependency from the list is required, we have nothing to do, since our internal
+ // service will be stopped/restarted.
+ for (Dependency dependency : dependencies) {
+ if (((DependencyContext) dependency).isRequired()) {
+ return this;
+ }
+ }
+ // Ok, the list contains no required dependencies: add optionals dependencies in already instantiated
+ // services.
+ AbstractDecorator ad = (AbstractDecorator) m_component.getService();
+ if (ad != null) {
+ ad.addDependency(dependencies);
+ }
+ return this;
+ }
+
+ public Component add(ComponentStateListener listener) {
+ m_stateListeners.add(listener);
+ // Add the listener to all already instantiated services.
+ AbstractDecorator ad = (AbstractDecorator) m_component.getService();
+ if (ad != null) {
+ ad.addStateListener(listener);
+ }
+ return this;
+ }
+
+ public List<DependencyContext> getDependencies() {
+ return m_component.getDependencies();
+ }
+
+ public Object getService() {
+ return m_component.getService();
+ }
+
+ public String getClassName() {
+ return m_component.getClassName();
+ }
+
+ public Dictionary<?,?> getServiceProperties() {
+ return m_serviceProperties;
+ }
+
+ public ServiceRegistration getServiceRegistration() {
+ return m_component.getServiceRegistration();
+ }
+
+ public Component remove(Dependency dependency) {
+ m_component.remove(dependency);
+ // Remove the dependency (if optional) from all already instantiated services.
+ // If the dependency is required, our internal service will be stopped, so in this case
+ // we have nothing to do.
+ if (!((DependencyContext) dependency).isRequired())
+ {
+ AbstractDecorator ad = (AbstractDecorator) m_component.getService();
+ if (ad != null)
+ {
+ ad.removeDependency(dependency);
+ }
+ }
+ return this;
+ }
+
+ public Component remove(ComponentStateListener listener) {
+ m_stateListeners.remove(listener);
+ // Remove the listener from all already instantiated services.
+ AbstractDecorator ad = (AbstractDecorator) m_component.getService();
+ if (ad != null) {
+ ad.removeStateListener(listener);
+ }
+ return this;
+ }
+
+ public Component setCallbacks(Object instance, String init, String start, String stop, String destroy) {
+ m_component.ensureNotActive();
+ m_callbackObject = instance;
+ m_init = init;
+ m_start = start;
+ m_stop = stop;
+ m_destroy = destroy;
+ return this;
+ }
+
+ public Component setCallbacks(String init, String start, String stop, String destroy) {
+ setCallbacks(null, init, start, stop, destroy);
+ return this;
+ }
+
+ public Component setComposition(Object instance, String getMethod) {
+ m_component.ensureNotActive();
+ m_compositionInstance = instance;
+ m_compositionMethod = getMethod;
+ return this;
+ }
+
+ public Component setComposition(String getMethod) {
+ m_component.ensureNotActive();
+ m_compositionMethod = getMethod;
+ return this;
+ }
+
+ public Component setFactory(Object factory, String createMethod) {
+ m_component.ensureNotActive();
+ m_factory = factory;
+ m_factoryCreateMethod = createMethod;
+ return this;
+ }
+
+ public Component setFactory(String createMethod) {
+ return setFactory(null, createMethod);
+ }
+
+ public Component setImplementation(Object implementation) {
+ m_component.ensureNotActive();
+ m_serviceImpl = implementation;
+ return this;
+ }
+
+ public Component setInterface(String serviceName, Dictionary<?,?> properties) {
+ return setInterface(new String[] { serviceName }, properties);
+ }
+
+ public synchronized Component setInterface(String[] serviceInterfaces, Dictionary<?,?> properties) {
+ m_component.ensureNotActive();
+ if (serviceInterfaces != null) {
+ m_serviceInterfaces = new String[serviceInterfaces.length];
+ System.arraycopy(serviceInterfaces, 0, m_serviceInterfaces, 0, serviceInterfaces.length);
+ m_serviceProperties = properties;
+ }
+ return this;
+ }
+
+ public Component setServiceProperties(Dictionary<?,?> serviceProperties) {
+ synchronized (this) {
+ m_serviceProperties = serviceProperties;
+ }
+ // Set the properties to all already instantiated services.
+ if (serviceProperties != null) {
+ AbstractDecorator ad = (AbstractDecorator) m_component.getService();
+ if (ad != null) {
+ ad.setServiceProperties(serviceProperties);
+ }
+ }
+ return this;
+ }
+
+ public void start() {
+ m_component.start();
+ }
+
+ public void stop() {
+ m_component.stop();
+ }
+
+ public void invokeCallbackMethod(Object[] instances, String methodName, Class<?>[][] signatures, Object[][] parameters) {
+ m_component.invokeCallbackMethod(instances, methodName, signatures, parameters);
+ }
+
+ public DependencyManager getDependencyManager() {
+ return m_component.getDependencyManager();
+ }
+
+ public Component setAutoConfig(Class<?> clazz, boolean autoConfig) {
+ m_component.setAutoConfig(clazz, autoConfig);
+ return this;
+ }
+
+ public Component setAutoConfig(Class<?> clazz, String instanceName) {
+ m_component.setAutoConfig(clazz, instanceName);
+ return this;
+ }
+
+ public boolean getAutoConfig(Class<?> clazz) {
+ return m_component.getAutoConfig(clazz);
+ }
+
+ public String getAutoConfigInstance(Class<?> clazz) {
+ return m_component.getAutoConfigInstance(clazz);
+ }
+
+ public ComponentDependencyDeclaration[] getComponentDependencies() {
+ return m_component.getComponentDependencies();
+ }
+
+ public String getName() {
+ return m_component.getName();
+ }
+
+ public int getState() {
+ return m_component.getState();
+ }
+
+ public long getId() {
+ return m_component.getId();
+ }
+
+ public String[] getServices() {
+ return m_component.getServices();
+ }
+
+ public BundleContext getBundleContext() {
+ return m_component.getBundleContext();
+ }
+
+ @Override
+ public SerialExecutor getExecutor() {
+ return m_component.getExecutor();
+ }
+
+ @Override
+ public boolean isAvailable() {
+ return m_component.isAvailable();
+ }
+
+ @Override
+ public void handleChange() {
+ m_component.handleChange();
+ }
+
+ @Override
+ public Object[] getInstances() {
+ return m_component.getInstances();
+ }
+
+ @Override
+ public void updateInstance(DependencyContext dependency) {
+ m_component.updateInstance(dependency);
+ };
+}
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