Stuart McCulloch | 798b456 | 2009-04-16 09:32:05 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one |
| 3 | * or more contributor license agreements. See the NOTICE file |
| 4 | * distributed with this work for additional information |
| 5 | * regarding copyright ownership. The ASF licenses this file |
| 6 | * to you under the Apache License, Version 2.0 (the |
| 7 | * "License"); you may not use this file except in compliance |
| 8 | * with the License. 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, |
| 13 | * software distributed under the License is distributed on an |
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 15 | * KIND, either express or implied. See the License for the |
| 16 | * specific language governing permissions and limitations |
| 17 | * under the License. |
| 18 | */ |
| 19 | package org.apache.felix.das; |
| 20 | |
| 21 | |
| 22 | import java.lang.reflect.Field; |
| 23 | import java.lang.reflect.Method; |
| 24 | |
| 25 | |
| 26 | /** |
| 27 | * Utility class for injecting objects and invoking |
| 28 | * methods that are normally invoked by the dependency manager. |
| 29 | * |
| 30 | * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| 31 | * |
| 32 | */ |
| 33 | public class Utils |
| 34 | { |
| 35 | |
| 36 | public static void invoke( Object target, String method ) |
| 37 | { |
| 38 | try |
| 39 | { |
| 40 | Method m = target.getClass().getDeclaredMethod( method, new Class[0] ); |
| 41 | m.setAccessible( true ); |
| 42 | m.invoke( target, new Object[0] ); |
| 43 | } |
| 44 | catch ( Exception e ) |
| 45 | { |
| 46 | e.printStackTrace(); |
| 47 | junit.framework.Assert.fail( e.getMessage() ); |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | |
| 52 | public static void inject( Object target, Class<?> clazz, Object injectable ) |
| 53 | { |
| 54 | |
| 55 | Field[] fields = target.getClass().getDeclaredFields(); |
| 56 | |
| 57 | for ( Field field : fields ) |
| 58 | { |
| 59 | if ( clazz == field.getType() ) |
| 60 | { |
| 61 | field.setAccessible( true ); |
| 62 | try |
| 63 | { |
| 64 | field.set( target, injectable ); |
| 65 | } |
| 66 | catch ( IllegalArgumentException e ) |
| 67 | { |
| 68 | e.printStackTrace(); |
| 69 | } |
| 70 | catch ( IllegalAccessException e ) |
| 71 | { |
| 72 | e.printStackTrace(); |
| 73 | } |
| 74 | } |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | } |