1 package org.apache.onami.test.mock.guice;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.lang.reflect.Field;
23 import java.util.Map;
24
25 import com.google.inject.MembersInjector;
26
27 /**
28 * Class to inject via google-guice mock members into test cases classes.
29 *
30 * @param <T> type to inject members of
31 */
32 public class MockMembersInjector<T>
33 implements MembersInjector<T>
34 {
35
36 private final Field field;
37
38 private final Map<Field, Object> mockedObjects;
39
40 /**
41 * Create a new instance.
42 *
43 * @param field the field that has to be injected.
44 * @param mockedObjects the map of mocked object.
45 */
46 public MockMembersInjector( Field field, Map<Field, Object> mockedObjects )
47 {
48 this.field = field;
49 this.mockedObjects = mockedObjects;
50 }
51
52 /**
53 * {@inheritDoc}
54 */
55 public void injectMembers( T t )
56 {
57 boolean wasAccessible = field.isAccessible();
58 field.setAccessible( true );
59
60 try
61 {
62 field.set( t, mockedObjects.get( field ) );
63 }
64 catch ( IllegalAccessException e )
65 {
66 throw new RuntimeException( e );
67 }
68 finally
69 {
70 field.setAccessible( wasAccessible );
71 }
72 }
73
74 }