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Diffstat (limited to '')
-rw-r--r-- | sca-java-1.x/tags/1.5.1-RC4/modules/core-spi/src/main/java/org/apache/tuscany/sca/endpointresolver/DefaultEndpointResolverFactoryExtensionPoint.java | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/sca-java-1.x/tags/1.5.1-RC4/modules/core-spi/src/main/java/org/apache/tuscany/sca/endpointresolver/DefaultEndpointResolverFactoryExtensionPoint.java b/sca-java-1.x/tags/1.5.1-RC4/modules/core-spi/src/main/java/org/apache/tuscany/sca/endpointresolver/DefaultEndpointResolverFactoryExtensionPoint.java deleted file mode 100644 index 04ac4ee20c..0000000000 --- a/sca-java-1.x/tags/1.5.1-RC4/modules/core-spi/src/main/java/org/apache/tuscany/sca/endpointresolver/DefaultEndpointResolverFactoryExtensionPoint.java +++ /dev/null @@ -1,180 +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.endpointresolver; - -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.Endpoint; -import org.apache.tuscany.sca.core.ExtensionPointRegistry; -import org.apache.tuscany.sca.extensibility.ServiceDeclaration; -import org.apache.tuscany.sca.extensibility.ServiceDiscovery; - -/** - * Default implementation of a provider factory extension point. - * - * @version $Rev$ $Date$ - */ -public class DefaultEndpointResolverFactoryExtensionPoint implements EndpointResolverFactoryExtensionPoint { - - private ExtensionPointRegistry registry; - private final Map<Class<?>, EndpointResolverFactory> endpointResolverFactories = new HashMap<Class<?>, EndpointResolverFactory>(); - private boolean loaded; - - /** - * The default constructor. Does nothing. - * - */ - public DefaultEndpointResolverFactoryExtensionPoint(ExtensionPointRegistry registry) { - this.registry = registry; - } - - /** - * Add an endpoint resolver factory. - * - * @param endpointResolverFactory The resolver factory - */ - public void addEndpointResolverFactory(EndpointResolverFactory endpointResolverFactory){ - endpointResolverFactories.put(endpointResolverFactory.getModelType(), endpointResolverFactory); - } - - /** - * Remove a endpoint resolver factory. - * - * @param endpointResolverFactory The endpoint resolver factory - */ - public void removeEndpointResolverFactory(EndpointResolverFactory endpointResolverFactory){ - endpointResolverFactories.remove(endpointResolverFactory.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 EndpointResolverFactory getEndpointResolverFactory(Class<?> modelType) { - loadProviderFactories(); - - Class<?>[] classes = modelType.getInterfaces(); - for (Class<?> c : classes) { - EndpointResolverFactory factory = endpointResolverFactories.get(c); - if (factory != null) { - return factory; - } - } - return endpointResolverFactories.get(modelType); - } - - - /** - * Load provider factories declared under META-INF/services. - * @param registry - */ - private synchronized void loadProviderFactories() { - if (loaded) - return; - - // Get the provider factory service declarations - Set<ServiceDeclaration> factoryDeclarations; - ServiceDiscovery serviceDiscovery = ServiceDiscovery.getInstance(); - try { - factoryDeclarations = serviceDiscovery.getServiceDeclarations(EndpointResolverFactory.class); - } catch (Exception e) { - throw new IllegalStateException(e); - } - - // Get the extension point - EndpointResolverFactoryExtensionPoint factoryExtensionPoint = - registry.getExtensionPoint(EndpointResolverFactoryExtensionPoint.class); - List<EndpointResolverFactory> factories = new ArrayList<EndpointResolverFactory>(); - - for (ServiceDeclaration factoryDeclaration : factoryDeclarations) { - Map<String, String> attributes = factoryDeclaration.getAttributes(); - - // Find the model type that identifies this resolver - String modelTypeName = attributes.get("model"); - - // Create a provider factory wrapper and register it - EndpointResolverFactory factory = - new LazyEndpointResolverFactory(registry, modelTypeName, factoryDeclaration); - factoryExtensionPoint.addEndpointResolverFactory(factory); - factories.add(factory); - } - - loaded = true; - } - - /** - * A wrapper around an endpoint provider factory allowing lazy - * loading and initialization of endpoint providers. - */ - private class LazyEndpointResolverFactory implements EndpointResolverFactory { - private ExtensionPointRegistry registry; - private String modelTypeName; - private ServiceDeclaration providerClass; - private EndpointResolverFactory factory; - private Class modelType; - - private LazyEndpointResolverFactory(ExtensionPointRegistry registry, - String modelTypeName, - ServiceDeclaration providerClass) { - this.registry = registry; - this.modelTypeName = modelTypeName; - this.providerClass = providerClass; - } - - @SuppressWarnings("unchecked") - private EndpointResolverFactory getFactory() { - if (factory == null) { - try { - Class<EndpointResolverFactory> factoryClass = (Class<EndpointResolverFactory>)providerClass.loadClass(); - Constructor<EndpointResolverFactory> constructor = - factoryClass.getConstructor(ExtensionPointRegistry.class); - factory = constructor.newInstance(registry); - } catch (Exception e) { - throw new IllegalStateException(e); - } - } - return factory; - } - - public EndpointResolver createEndpointResolver(Endpoint endpoint, Binding binding) { - return getFactory().createEndpointResolver(endpoint, binding); - } - - public Class getModelType() { - if (modelType == null) { - try { - modelType = providerClass.loadClass(modelTypeName); - } catch (Exception e) { - throw new IllegalStateException(e); - } - } - return modelType; - } - - } - -} |