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1   /*
2    * Copyright 2002-2014 the original author or authors.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package org.springframework.context.annotation.configuration;
18  
19  import org.junit.Test;
20  
21  import org.springframework.beans.factory.ObjectFactory;
22  import org.springframework.context.annotation.AnnotationConfigApplicationContext;
23  import org.springframework.context.annotation.Bean;
24  import org.springframework.context.annotation.Configuration;
25  import org.springframework.context.annotation.Scope;
26  import org.springframework.context.annotation.ScopedProxyMode;
27  
28  import static org.hamcrest.Matchers.*;
29  import static org.junit.Assert.*;
30  
31  /**
32   * @author Phillip Webb
33   */
34  public class Spr10744Tests {
35  
36  	private static int createCount = 0;
37  
38  	private static int scopeCount = 0;
39  
40  
41  	@Test
42  	public void testSpr10744() throws Exception {
43  		AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
44  		context.getBeanFactory().registerScope("myTestScope", new MyTestScope());
45  		context.register(MyTestConfiguration.class);
46  		context.refresh();
47  
48  		Foo bean1 = context.getBean("foo", Foo.class);
49  		Foo bean2 = context.getBean("foo", Foo.class);
50  		assertThat(bean1, sameInstance(bean2));
51  
52  		// Should not have invoked constructor for the proxy instance
53  		assertThat(createCount, equalTo(0));
54  		assertThat(scopeCount, equalTo(0));
55  
56  		// Proxy mode should create new scoped object on each method call
57  		bean1.getMessage();
58  		assertThat(createCount, equalTo(1));
59  		assertThat(scopeCount, equalTo(1));
60  		bean1.getMessage();
61  		assertThat(createCount, equalTo(2));
62  		assertThat(scopeCount, equalTo(2));
63  
64  		context.close();
65  	}
66  
67  
68  	private static class MyTestScope implements org.springframework.beans.factory.config.Scope {
69  
70  		@Override
71  		public Object get(String name, ObjectFactory<?> objectFactory) {
72  			scopeCount++;
73  			return objectFactory.getObject();
74  		}
75  
76  		@Override
77  		public Object remove(String name) {
78  			return null;
79  		}
80  
81  		@Override
82  		public void registerDestructionCallback(String name, Runnable callback) {
83  		}
84  
85  		@Override
86  		public Object resolveContextualObject(String key) {
87  			return null;
88  		}
89  
90  		@Override
91  		public String getConversationId() {
92  			return null;
93  		}
94  	}
95  
96  
97  	static class Foo {
98  
99  		public Foo() {
100 			createCount++;
101 		}
102 
103 		public String getMessage() {
104 			return "Hello";
105 		}
106 	}
107 
108 
109 	@Configuration
110 	static class MyConfiguration {
111 
112 		@Bean
113 		public Foo foo() {
114 			return new Foo();
115 		}
116 	}
117 
118 
119 	@Configuration
120 	static class MyTestConfiguration extends MyConfiguration {
121 
122 		@Bean
123 		@Scope(value = "myTestScope",  proxyMode = ScopedProxyMode.TARGET_CLASS)
124 		@Override
125 		public Foo foo() {
126 			return new Foo();
127 		}
128 	}
129 
130 }