diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0-Beta2-RC3/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/DefaultContextFactoryExtensionPoint.java')
-rw-r--r-- | sca-java-2.x/tags/2.0-Beta2-RC3/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/DefaultContextFactoryExtensionPoint.java | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta2-RC3/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/DefaultContextFactoryExtensionPoint.java b/sca-java-2.x/tags/2.0-Beta2-RC3/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/DefaultContextFactoryExtensionPoint.java deleted file mode 100644 index 50882c9498..0000000000 --- a/sca-java-2.x/tags/2.0-Beta2-RC3/modules/core-spi/src/main/java/org/apache/tuscany/sca/context/DefaultContextFactoryExtensionPoint.java +++ /dev/null @@ -1,115 +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.context; - -import java.lang.reflect.Constructor; -import java.util.HashMap; - -import org.apache.tuscany.sca.core.ExtensionPointRegistry; -import org.apache.tuscany.sca.extensibility.ServiceDeclaration; - -/** - * Default implementation of a model factory extension point. - * - * @version $Rev$ $Date$ - */ -public class DefaultContextFactoryExtensionPoint implements ContextFactoryExtensionPoint { - - /** - * The Map of Factories that have been registered. - */ - private HashMap<Class<?>, Object> factories = new HashMap<Class<?>, Object>(); - - private ExtensionPointRegistry registry; - - public DefaultContextFactoryExtensionPoint(ExtensionPointRegistry registry) { - this.registry = registry; - } - - /** - * Add a model factory extension. - * - * @param factory The factory to add. - * @throws IllegalArgumentException if factory is null - */ - public void addFactory(Object factory) throws IllegalArgumentException { - if (factory == null) { - throw new IllegalArgumentException("Cannot add null as a factory"); - } - - Class<?>[] interfaces = factory.getClass().getInterfaces(); - for (int i = 0; i<interfaces.length; i++) { - factories.put(interfaces[i], factory); - } - } - - /** - * Remove a model factory extension. - * - * @param factory The factory to remove - * @throws IllegalArgumentException if factory is null - */ - public void removeFactory(Object factory) throws IllegalArgumentException { - if (factory == null) { - throw new IllegalArgumentException("Cannot remove null as a factory"); - } - - Class<?>[] interfaces = factory.getClass().getInterfaces(); - for (int i = 0; i<interfaces.length; i++) { - factories.remove(interfaces[i]); - } - } - - /** - * Get a factory implementing the given interface. - * - * @param factoryInterface The lookup key (factory interface) - * @return The factory - */ - public <T> T getFactory(Class<T> factoryInterface) throws IllegalArgumentException { - if (factoryInterface == null) { - throw new IllegalArgumentException("Cannot get null as a factory"); - } - - Object factory = factories.get(factoryInterface); - if (factory == null) { - - // Dynamically load a factory class declared under META-INF/services - try { - ServiceDeclaration factoryDeclaration = registry.getServiceDiscovery().getServiceDeclaration(factoryInterface.getName()); - if (factoryDeclaration != null) { - Class<?> factoryClass = factoryDeclaration.loadClass(); - - // Default empty constructor - Constructor<?> constructor = factoryClass.getConstructor(ExtensionPointRegistry.class); - factory = constructor.newInstance(registry); - - // Cache the loaded factory - addFactory(factory); - } - } catch (Exception e) { - throw new IllegalArgumentException(e); - } - - } - - return factoryInterface.cast(factory); - } -} |