1 files changed, 0 insertions, 191 deletions
diff --git a/java/sca/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultExtensionPointRegistry.java b/java/sca/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultExtensionPointRegistry.java
deleted file mode 100644
index 3ffe893553..0000000000
--- a/java/sca/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultExtensionPointRegistry.java
+++ /dev/null
@@ -1,191 +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 static org.apache.tuscany.sca.extensibility.ServiceHelper.newInstance;
-
-import java.lang.reflect.Modifier;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.IdentityHashMap;
-import java.util.Map;
-import java.util.Set;
-
-import org.apache.tuscany.sca.extensibility.ServiceDeclaration;
-import org.apache.tuscany.sca.extensibility.ServiceDiscovery;
-import org.apache.tuscany.sca.extensibility.ServiceHelper;
-
-/**
- * Default implementation of a registry to hold all the Tuscany core extension
- * points. As the point of contact for all extension artifacts this registry
- * allows loaded extensions to find all other parts of the system and register
- * themselves appropriately.
- *
- * @version $Rev$ $Date$
- */
-public class DefaultExtensionPointRegistry implements ExtensionPointRegistry {
-    protected Map<Class<?>, Object> extensionPoints = new HashMap<Class<?>, Object>();
-    private ServiceDiscovery discovery;
-    /**
-     * Constructs a new registry.
-     */
-    public DefaultExtensionPointRegistry() {
-        this.discovery = ServiceDiscovery.getInstance();
-    }
-    
-    protected DefaultExtensionPointRegistry(ServiceDiscovery discovery) {
-        this.discovery = discovery;
-    }
-
-    /**
-     * Add an extension point to the registry. This default implementation
-     * stores extensions against the interfaces that they implement.
-     *
-     * @param extensionPoint The instance of the extension point
-     *
-     * @throws IllegalArgumentException if extensionPoint is null
-     */
-    public synchronized void addExtensionPoint(Object extensionPoint) {
-        addExtensionPoint(extensionPoint, null);
-    }
-
-    public synchronized void addExtensionPoint(Object extensionPoint, ServiceDeclaration declaration) {
-        if (extensionPoint == null) {
-            throw new IllegalArgumentException("Cannot register null as an ExtensionPoint");
-        }
-        ServiceHelper.start(extensionPoint);
-        
-        Set<Class<?>> interfaces = getAllInterfaces(extensionPoint.getClass());
-        for (Class<?> i : interfaces) {
-            registerExtensionPoint(i, extensionPoint, declaration);
-        }
-    }
-
-    protected void registerExtensionPoint(Class<?> i, Object extensionPoint, ServiceDeclaration declaration) {
-        extensionPoints.put(i, extensionPoint);
-    }
-
-    /**
-     * Get the extension point by the interface that it implements
-     *
-     * @param extensionPointType The lookup key (extension point interface)
-     * @return The instance of the extension point
-     *
-     * @throws IllegalArgumentException if extensionPointType is null
-     */
-    public synchronized <T> T getExtensionPoint(Class<T> extensionPointType) {
-        if (extensionPointType == null) {
-            throw new IllegalArgumentException("Cannot lookup ExtensionPoint of type null");
-        }
-
-        Object extensionPoint = findExtensionPoint(extensionPointType);
-        if (extensionPoint == null) {
-
-            // Dynamically load an extension point class declared under META-INF/services
-            try {
-                ServiceDeclaration extensionPointDeclaration =
-                    getServiceDiscovery().getServiceDeclaration(extensionPointType);
-                if (extensionPointDeclaration != null) {
-                    extensionPoint = newInstance(this, extensionPointDeclaration);
-                    // Cache the loaded extension point
-                    addExtensionPoint(extensionPoint, extensionPointDeclaration);
-                }
-            } catch (Throwable e) {
-                throw new IllegalArgumentException(e);
-            }
-        }
-        return extensionPointType.cast(extensionPoint);
-    }
-
-    protected <T> Object findExtensionPoint(Class<T> extensionPointType) {
-        return extensionPoints.get(extensionPointType);
-    }
-
-    /**
-     * Remove an extension point based on the interface that it implements
-     *
-     * @param extensionPoint The extension point to remove
-     *
-     * @throws IllegalArgumentException if extensionPoint is null
-     */
-    public synchronized void removeExtensionPoint(Object extensionPoint) {
-        if (extensionPoint == null) {
-            throw new IllegalArgumentException("Cannot remove null as an ExtensionPoint");
-        }
-
-        ServiceHelper.stop(extensionPoint);
-
-        Set<Class<?>> interfaces = getAllInterfaces(extensionPoint.getClass());
-        for (Class<?> i : interfaces) {
-            unregisterExtensionPoint(i);
-        }
-    }
-
-    protected void unregisterExtensionPoint(Class<?> i) {
-        extensionPoints.remove(i);
-    }
-
-    /**
-     * Returns the set of interfaces implemented by the given class and its
-     * ancestors or a blank set if none
-     */
-    private static Set<Class<?>> getAllInterfaces(Class<?> clazz) {
-        Set<Class<?>> implemented = new HashSet<Class<?>>();
-        getAllInterfaces(clazz, implemented);
-        implemented.remove(LifeCycleListener.class);
-        return implemented;
-    }
-
-    private static void getAllInterfaces(Class<?> clazz, Set<Class<?>> 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 synchronized void start() {
-        // Do nothing
-    }
-
-    public synchronized void stop() {
-        // Get a unique map as an extension point may exist in the map by different keys
-        Map<LifeCycleListener, LifeCycleListener> map = new IdentityHashMap<LifeCycleListener, LifeCycleListener>();
-        for (Object extp : extensionPoints.values()) {
-            if (extp instanceof LifeCycleListener) {
-                LifeCycleListener listener = (LifeCycleListener)extp;
-                map.put(listener, listener);
-            }
-        }
-        ServiceHelper.stop(map.values());
-        extensionPoints.clear();
-    }
-
-    public ServiceDiscovery getServiceDiscovery() {
-        return discovery;
-    }
-
-}