| 1 | /** |
| 2 | * |
| 3 | * Copyright (C) 2011 Cloud Conscious, LLC. <info@cloudconscious.com> |
| 4 | * |
| 5 | * ==================================================================== |
| 6 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | * you may not use this file except in compliance with the License. |
| 8 | * You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, software |
| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | * See the License for the specific language governing permissions and |
| 16 | * limitations under the License. |
| 17 | * ==================================================================== |
| 18 | */ |
| 19 | package org.jclouds.rest.config; |
| 20 | |
| 21 | import java.lang.reflect.InvocationHandler; |
| 22 | import java.lang.reflect.Method; |
| 23 | import java.lang.reflect.Proxy; |
| 24 | import java.util.Map; |
| 25 | |
| 26 | import com.google.inject.Binder; |
| 27 | import com.google.inject.Provider; |
| 28 | |
| 29 | /** |
| 30 | * |
| 31 | * @author Adrian Cole |
| 32 | */ |
| 33 | public class BinderUtils { |
| 34 | |
| 35 | public static <K, V> void bindClient(Binder binder, Class<K> syncClientType, |
| 36 | Class<V> asyncClientType, Map<Class<?>, Class<?>> delegates) { |
| 37 | Provider<K> asyncProvider = new ClientProvider<K, V>(syncClientType, asyncClientType, |
| 38 | delegates); |
| 39 | binder.requestInjection(asyncProvider); |
| 40 | binder.bind(syncClientType).toProvider(asyncProvider); |
| 41 | } |
| 42 | |
| 43 | public static <T> void bindAsyncClient(Binder binder, Class<T> asyncClientType) { |
| 44 | Provider<T> asyncProvider = new AsyncClientProvider<T>(asyncClientType); |
| 45 | binder.requestInjection(asyncProvider); |
| 46 | binder.bind(asyncClientType).toProvider(asyncProvider); |
| 47 | } |
| 48 | |
| 49 | @SuppressWarnings("unchecked") |
| 50 | public static <T> T newNullProxy(Class<T> clazz) { |
| 51 | return (T) Proxy.newProxyInstance(clazz.getClassLoader(), new Class<?>[] { clazz }, |
| 52 | new InvocationHandler() { |
| 53 | |
| 54 | @Override |
| 55 | public Object invoke(Object proxy, Method method, Object[] args) throws Throwable { |
| 56 | return null; |
| 57 | } |
| 58 | |
| 59 | }); |
| 60 | } |
| 61 | } |