From 35f81a620ea2d8423a49d8630bcef1d69027f444 Mon Sep 17 00:00:00 2001 From: antelder Date: Sat, 28 Mar 2009 09:44:15 +0000 Subject: Remove old m2 branch git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@759447 13f79535-47bb-0310-9956-ffa450edef68 --- .../sca/core/DefaultUtilityExtensionPoint.java | 192 --------------------- 1 file changed, 192 deletions(-) delete mode 100644 branches/sca-java-2.0-M2/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultUtilityExtensionPoint.java (limited to 'branches/sca-java-2.0-M2/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultUtilityExtensionPoint.java') diff --git a/branches/sca-java-2.0-M2/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultUtilityExtensionPoint.java b/branches/sca-java-2.0-M2/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultUtilityExtensionPoint.java deleted file mode 100644 index fd85c5afa0..0000000000 --- a/branches/sca-java-2.0-M2/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultUtilityExtensionPoint.java +++ /dev/null @@ -1,192 +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.core; - -import java.io.IOException; -import java.lang.reflect.Constructor; -import java.lang.reflect.InvocationTargetException; -import java.lang.reflect.Modifier; -import java.util.HashSet; -import java.util.Map; -import java.util.Set; -import java.util.concurrent.ConcurrentHashMap; - -import org.apache.tuscany.sca.extensibility.ServiceDeclaration; -import org.apache.tuscany.sca.extensibility.ServiceDiscovery; - -/** - * Default implementation of an extension point to hold Tuscany utility utilities. - * - * @version $Rev$ $Date$ - */ -public class DefaultUtilityExtensionPoint implements UtilityExtensionPoint { - private Map, Object> utilities = new ConcurrentHashMap, Object>(); - - private ExtensionPointRegistry extensionPoints; - - /** - * Constructs a new extension point. - */ - public DefaultUtilityExtensionPoint(ExtensionPointRegistry extensionPoints) { - this.extensionPoints = extensionPoints; - } - - /** - * Add a utility to the extension point. This default implementation - * stores utilities against the interfaces that they implement. - * - * @param utility The instance of the utility - * - * @throws IllegalArgumentException if utility is null - */ - public void addUtility(Object utility) { - if (utility == null) { - throw new IllegalArgumentException("Cannot register null as a Service"); - } - - Set> interfaces = getAllInterfaces(utility.getClass()); - for (Class i : interfaces) { - utilities.put(i, utility); - } - } - - private Constructor getConstructor(Constructor[] constructors, Class[] paramTypes) { - for (Constructor c : constructors) { - Class[] types = c.getParameterTypes(); - if (c.getParameterTypes().length == paramTypes.length) { - boolean found = true; - for (int i = 0; i < types.length; i++) { - if (types[i] != paramTypes[i]) { - found = false; - break; - } - } - if (found) { - return c; - } - } - } - return null; - } - - /** - * Get the utility by the interface that it implements - * - * @param utilityType The lookup key (utility interface) - * @return The instance of the utility - * - * @throws IllegalArgumentException if utilityType is null - */ - public T getUtility(Class utilityType) { - return getUtility(utilityType, false); - } - - /** - * Remove a utility based on the interface that it implements - * - * @param utility The utility to remove - * - * @throws IllegalArgumentException if utility is null - */ - public void removeUtility(Object utility) { - if (utility == null) { - throw new IllegalArgumentException("Cannot remove null as a Service"); - } - - Set> interfaces = getAllInterfaces(utility.getClass()); - for (Class i : interfaces) { - utilities.remove(i); - } - } - - /** - * Returns the set of interfaces implemented by the given class and its - * ancestors or a blank set if none - */ - private static Set> getAllInterfaces(Class clazz) { - Set> implemented = new HashSet>(); - getAllInterfaces(clazz, implemented); - return implemented; - } - - private static void getAllInterfaces(Class clazz, Set> implemented) { - Class[] interfaces = clazz.getInterfaces(); - for (Class interfaze : interfaces) { - if (Modifier.isPublic(interfaze.getModifiers())) { - implemented.add(interfaze); - } - } - Class superClass = clazz.getSuperclass(); - // Object has no superclass so check for null - if (superClass != null && !superClass.equals(Object.class)) { - getAllInterfaces(superClass, implemented); - } - } - - public T getUtility(Class utilityType, boolean newInstance) { - if (utilityType == null) { - throw new IllegalArgumentException("Cannot lookup Service of type null"); - } - - Object utility = null; - if (!newInstance) { - utility = utilities.get(utilityType); - } - if (utility == null) { - - // Dynamically load a utility class declared under META-INF/services/"utilityType" - try { - ServiceDeclaration utilityDeclaration =ServiceDiscovery.getInstance().getFirstServiceDeclaration(utilityType.getName()); - if (utilityDeclaration != null) { - Class utilityClass = utilityDeclaration.loadClass(); - - // Construct the utility - Constructor[] constructors = utilityClass.getConstructors(); - Constructor constructor = getConstructor(constructors, new Class[] {ExtensionPointRegistry.class}); - if (constructor != null) { - utility = constructor.newInstance(extensionPoints); - } else { - constructor = getConstructor(constructors, new Class[] {}); - if (constructor != null) { - utility = constructor.newInstance(); - } else { - throw new IllegalArgumentException( - "No valid constructor is found for " + utilityClass); - } - } - - // Cache the loaded utility - addUtility(utility); - } - } catch (InvocationTargetException e) { - throw new IllegalArgumentException(e); - } catch (IOException e) { - throw new IllegalArgumentException(e); - } catch (ClassNotFoundException e) { - throw new IllegalArgumentException(e); - } catch (InstantiationException e) { - throw new IllegalArgumentException(e); - } catch (IllegalAccessException e) { - throw new IllegalArgumentException(e); - } - } - return utilityType.cast(utility); } - -} -- cgit v1.2.3