1 files changed, 0 insertions, 197 deletions
diff --git a/tags/java/sca/2.0-M3/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultUtilityExtensionPoint.java b/tags/java/sca/2.0-M3/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultUtilityExtensionPoint.java
deleted file mode 100644
index c7ff4e1858..0000000000
--- a/tags/java/sca/2.0-M3/modules/extensibility/src/main/java/org/apache/tuscany/sca/core/DefaultUtilityExtensionPoint.java
+++ /dev/null
@@ -1,197 +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<Class<?>, Object> utilities = new ConcurrentHashMap<Class<?>, 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<Class<?>> 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> T getUtility(Class<T> 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<Class<?>> 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<Class<?>> getAllInterfaces(Class<?> clazz) {
-        Set<Class<?>> implemented = new HashSet<Class<?>>();
-        getAllInterfaces(clazz, implemented);
-        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 <T> T getUtility(Class<T> 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().getServiceDeclaration(utilityType.getName());
-                if (utilityDeclaration != null) {
-                    Class<?> utilityClass = utilityDeclaration.loadClass();
-
-                    // Construct the utility
-                    Constructor<?>[] constructors = utilityClass.getConstructors();
-                    Constructor<?> constructor = getConstructor(constructors, ExtensionPointRegistry.class, Map.class);
-                    if (constructor != null) {
-                        utility = constructor.newInstance(extensionPoints, utilityDeclaration.getAttributes());
-                    } else {
-                        constructor = getConstructor(constructors, ExtensionPointRegistry.class);
-                        if (constructor != null) {
-                            utility = constructor.newInstance(extensionPoints);
-                        } else {
-                            constructor = getConstructor(constructors);
-                            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);
-    }
-
-}