diff options
Diffstat (limited to 'branches/sca-android-r643746/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/DefaultProviderFactoryExtensionPoint.java')
-rw-r--r-- | branches/sca-android-r643746/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/DefaultProviderFactoryExtensionPoint.java | 370 |
1 files changed, 0 insertions, 370 deletions
diff --git a/branches/sca-android-r643746/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/DefaultProviderFactoryExtensionPoint.java b/branches/sca-android-r643746/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/DefaultProviderFactoryExtensionPoint.java deleted file mode 100644 index 371f9c9af2..0000000000 --- a/branches/sca-android-r643746/modules/core-spi/src/main/java/org/apache/tuscany/sca/provider/DefaultProviderFactoryExtensionPoint.java +++ /dev/null @@ -1,370 +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.provider;
-
-import java.lang.reflect.Constructor;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-
-import org.apache.tuscany.sca.assembly.Binding;
-import org.apache.tuscany.sca.assembly.Implementation;
-import org.apache.tuscany.sca.core.ExtensionPointRegistry;
-import org.apache.tuscany.sca.extensibility.ServiceDeclaration;
-import org.apache.tuscany.sca.extensibility.ServiceDiscovery;
-import org.apache.tuscany.sca.runtime.RuntimeComponent;
-import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
-import org.apache.tuscany.sca.runtime.RuntimeComponentService;
-
-/**
- * Default implementation of a provider factory extension point.
- *
- * @version $Rev: 634558 $ $Date: 2008-03-06 22:35:52 -0800 (Thu, 06 Mar 2008) $
- */
-public class DefaultProviderFactoryExtensionPoint implements ProviderFactoryExtensionPoint {
-
- private ExtensionPointRegistry registry;
- private final Map<Class<?>, ProviderFactory> providerFactories = new HashMap<Class<?>, ProviderFactory>();
- private final List<PolicyProviderFactory> policyProviderFactories = new ArrayList<PolicyProviderFactory>();
- private boolean loaded;
-
- /**
- * The default constructor. Does nothing.
- *
- */
- public DefaultProviderFactoryExtensionPoint(ExtensionPointRegistry registry) {
- this.registry = registry;
- }
-
- /**
- * Add a provider factory.
- *
- * @param providerFactory The provider factory
- */
- public void addProviderFactory(ProviderFactory providerFactory) {
- if(providerFactory instanceof PolicyProviderFactory) {
- policyProviderFactories.add((PolicyProviderFactory)providerFactory);
- }
- providerFactories.put(providerFactory.getModelType(), providerFactory);
- }
-
- /**
- * Remove a provider factory.
- *
- * @param providerFactory The provider factory
- */
- public void removeProviderFactory(ProviderFactory providerFactory) {
- if(providerFactory instanceof PolicyProviderFactory) {
- policyProviderFactories.remove((PolicyProviderFactory)providerFactory);
- }
- providerFactories.remove(providerFactory.getModelType());
- }
-
- /**
- * Returns the provider factory associated with the given model type.
- * @param modelType A model type
- * @return The provider factory associated with the given model type
- */
- public ProviderFactory getProviderFactory(Class<?> modelType) {
- loadProviderFactories();
-
- Class<?>[] classes = modelType.getInterfaces();
- for (Class<?> c : classes) {
- ProviderFactory factory = providerFactories.get(c);
- if (factory != null) {
- return factory;
- }
- }
- return providerFactories.get(modelType);
- }
-
- public List<PolicyProviderFactory> getPolicyProviderFactories() {
- loadProviderFactories();
- return policyProviderFactories;
- }
-
- /**
- * Load provider factories declared under META-INF/services.
- * @param registry
- */
- private void loadProviderFactories() {
- if (loaded)
- return;
-
- loadProviderFactories(BindingProviderFactory.class);
- loadProviderFactories(ImplementationProviderFactory.class);
- loadProviderFactories(PolicyProviderFactory.class);
-
- loaded = true;
- }
-
- /**
- * Load provider factories declared under META-INF/services.
- * @param registry
- * @param factoryClass
- * @return
- */
- private List<ProviderFactory> loadProviderFactories(Class<?> factoryClass) {
-
- // Get the provider factory service declarations
- Set<ServiceDeclaration> factoryDeclarations;
- ServiceDiscovery serviceDiscovery = ServiceDiscovery.getInstance();
- try {
- factoryDeclarations = serviceDiscovery.getServiceDeclarations(factoryClass);
- } catch (Exception e) {
- throw new IllegalStateException(e);
- }
- // Get the target extension point
-
- ProviderFactoryExtensionPoint factoryExtensionPoint =
- registry.getExtensionPoint(ProviderFactoryExtensionPoint.class);
-
- if (factoryExtensionPoint == null) {
- factoryExtensionPoint = new DefaultProviderFactoryExtensionPoint(registry);
- registry.addExtensionPoint(factoryExtensionPoint);
-
- }
-
- List<ProviderFactory> factories = new ArrayList<ProviderFactory>();
-
- for (ServiceDeclaration factoryDeclaration : factoryDeclarations) {
- Map<String, String> attributes = factoryDeclaration.getAttributes();
-
- // Load an implementation provider factory
- if (factoryClass == ImplementationProviderFactory.class) {
- String modelTypeName = attributes.get("model");
-
- // Create a provider factory wrapper and register it
- ImplementationProviderFactory factory =
- new LazyImplementationProviderFactory(registry, modelTypeName, factoryDeclaration);
- factoryExtensionPoint.addProviderFactory(factory);
- factories.add(factory);
-
- } else if (factoryClass == BindingProviderFactory.class) {
-
- // Load a binding provider factory
- String modelTypeName = attributes.get("model");
-
- // Create a provider factory wrapper and register it
- BindingProviderFactory factory =
- new LazyBindingProviderFactory(registry, modelTypeName, factoryDeclaration);
- factoryExtensionPoint.addProviderFactory(factory);
- factories.add(factory);
- } else if (factoryClass == PolicyProviderFactory.class) {
- // Load a policy provider factory
- String modelTypeName = attributes.get("model");
-
- // Create a provider factory wrapper and register it
- PolicyProviderFactory factory =
- new LazyPolicyProviderFactory(registry, modelTypeName, factoryDeclaration);
- factoryExtensionPoint.addProviderFactory(factory);
- factories.add(factory);
-
- }
- }
- return factories;
- }
-
- /**
- * A wrapper around an implementation provider factory allowing lazy
- * loading and initialization of implementation providers.
- */
- private static class LazyBindingProviderFactory implements BindingProviderFactory {
-
- private ExtensionPointRegistry registry;
- private String modelTypeName;
- private ServiceDeclaration factoryDeclaration;
- private BindingProviderFactory factory;
- private Class modelType;
-
- private LazyBindingProviderFactory(ExtensionPointRegistry registry,
- String modelTypeName,
- ServiceDeclaration factoryDeclaration) {
- this.registry = registry;
- this.modelTypeName = modelTypeName;
- this.factoryDeclaration = factoryDeclaration;
- }
-
- @SuppressWarnings("unchecked")
- private BindingProviderFactory getFactory() {
- if (factory == null) {
- try {
- Class<BindingProviderFactory> factoryClass =
- (Class<BindingProviderFactory>)factoryDeclaration.loadClass();
- Constructor<BindingProviderFactory> constructor =
- factoryClass.getConstructor(ExtensionPointRegistry.class);
- factory = constructor.newInstance(registry);
- } catch (Exception e) {
- throw new IllegalStateException(e);
- }
- }
- return factory;
- }
-
- @SuppressWarnings("unchecked")
- public ReferenceBindingProvider createReferenceBindingProvider(RuntimeComponent component,
- RuntimeComponentReference reference,
- Binding binding) {
- return getFactory().createReferenceBindingProvider(component, reference, binding);
- }
-
- @SuppressWarnings("unchecked")
- public ServiceBindingProvider createServiceBindingProvider(RuntimeComponent component,
- RuntimeComponentService service,
- Binding binding) {
- return getFactory().createServiceBindingProvider(component, service, binding);
- }
-
- public Class getModelType() {
- if (modelType == null) {
- try {
- modelType = factoryDeclaration.loadClass(modelTypeName);
- } catch (Exception e) {
- throw new IllegalStateException(e);
- }
- }
- return modelType;
- }
-
- }
-
- /**
- * A wrapper around an implementation provider factory allowing lazy
- * loading and initialization of implementation providers.
- */
- private class LazyImplementationProviderFactory implements ImplementationProviderFactory {
-
- private ExtensionPointRegistry registry;
- private String modelTypeName;
- private ServiceDeclaration providerClass;
- private ImplementationProviderFactory factory;
- private Class modelType;
-
- private LazyImplementationProviderFactory(ExtensionPointRegistry registry,
- String modelTypeName,
- ServiceDeclaration providerClass) {
- this.registry = registry;
- this.modelTypeName = modelTypeName;
- this.providerClass = providerClass;
- }
-
- @SuppressWarnings("unchecked")
- private ImplementationProviderFactory getFactory() {
- if (factory == null) {
- try {
- Class<ImplementationProviderFactory> factoryClass =
- (Class<ImplementationProviderFactory>)providerClass.loadClass();
- Constructor<ImplementationProviderFactory> constructor =
- factoryClass.getConstructor(ExtensionPointRegistry.class);
- factory = constructor.newInstance(registry);
- } catch (Exception e) {
- throw new IllegalStateException(e);
- }
- }
- return factory;
- }
-
- @SuppressWarnings("unchecked")
- public ImplementationProvider createImplementationProvider(RuntimeComponent component,
- Implementation Implementation) {
- return getFactory().createImplementationProvider(component, Implementation);
- }
-
- public Class getModelType() {
- if (modelType == null) {
- try {
-
- modelType = providerClass.loadClass(modelTypeName);
- } catch (Exception e) {
- throw new IllegalStateException(e);
- }
- }
- return modelType;
- }
-
- }
-
- /**
- * A wrapper around an policy provider factory allowing lazy
- * loading and initialization of policy providers.
- */
- private class LazyPolicyProviderFactory implements PolicyProviderFactory {
- private ExtensionPointRegistry registry;
- private String modelTypeName;
- private ServiceDeclaration providerClass;
- private PolicyProviderFactory factory;
- private Class modelType;
-
- private LazyPolicyProviderFactory(ExtensionPointRegistry registry,
- String modelTypeName,
- ServiceDeclaration providerClass) {
- this.registry = registry;
- this.modelTypeName = modelTypeName;
- this.providerClass = providerClass;
- }
-
- @SuppressWarnings("unchecked")
- private PolicyProviderFactory getFactory() {
- if (factory == null) {
- try {
- Class<PolicyProviderFactory> factoryClass = (Class<PolicyProviderFactory>)providerClass.loadClass();
- Constructor<PolicyProviderFactory> constructor =
- factoryClass.getConstructor(ExtensionPointRegistry.class);
- factory = constructor.newInstance(registry);
- } catch (Exception e) {
- throw new IllegalStateException(e);
- }
- }
- return factory;
- }
-
- public PolicyProvider createImplementationPolicyProvider(RuntimeComponent component,
- Implementation implementation) {
- return getFactory().createImplementationPolicyProvider(component, implementation);
- }
-
- public PolicyProvider createReferencePolicyProvider(RuntimeComponent component,
- RuntimeComponentReference reference,
- Binding binding) {
- return getFactory().createReferencePolicyProvider(component, reference, binding);
- }
-
- public PolicyProvider createServicePolicyProvider(RuntimeComponent component,
- RuntimeComponentService service,
- Binding binding) {
- return getFactory().createServicePolicyProvider(component, service, binding);
- }
-
- public Class getModelType() {
- if (modelType == null) {
- try {
- modelType = providerClass.loadClass(modelTypeName);
- } catch (Exception e) {
- throw new IllegalStateException(e);
- }
- }
- return modelType;
- }
-
- }
-
-}
|