SetterService


1   // Copyright 2005 The Apache Software Foundation
2   //
3   // Licensed under the Apache License, Version 2.0 (the "License");
4   // you may not use this file except in compliance with the License.
5   // You may obtain a copy of the License at
6   //
7   //     http://www.apache.org/licenses/LICENSE-2.0
8   //
9   // Unless required by applicable law or agreed to in writing, software
10  // distributed under the License is distributed on an "AS IS" BASIS,
11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  // See the License for the specific language governing permissions and
13  // limitations under the License.
14  
15  package org.apache.examples.setters;
16  
17  import java.io.IOException  ;
18  import java.util.Collection  ;
19  import java.util.List  ;
20  import java.util.Properties  ;
21  
22  import org.apache.examples.Adder;
23  import org.apache.hivemind.Resource;
24  
25  /**
26   * Demonstrates the use of setter based dependency injection using the BuilderFactory.
27   * 
28   * @author Achim Huegen
29   */
30  public class SetterService implements Runnable  
31  {
32      private String   _stringValue;
33  
34      private int _intValue;
35  
36      private double _doubleValue;
37  
38      private Adder _adderService;
39  
40      private List   _configuration;
41  
42      private Collection   _container;
43  
44      private Resource _textResource;
45  
46      public void setAdderService(Adder adderService)
47      {
48          _adderService = adderService;
49      }
50  
51      public void setConfiguration(List   configuration)
52      {
53          _configuration = configuration;
54      }
55  
56      public void setContainer(Collection   container)
57      {
58          _container = container;
59      }
60  
61      public void setDoubleValue(double doubleValue)
62      {
63          _doubleValue = doubleValue;
64      }
65  
66      public void setIntValue(int intValue)
67      {
68          _intValue = intValue;
69      }
70  
71      public void setStringValue(String   stringValue)
72      {
73          _stringValue = stringValue;
74      }
75  
76      public void setTextResource(Resource textResource)
77      {
78          _textResource = textResource;
79      }
80  
81      public void run()
82      {
83          System.out.println("StringValue: " + _stringValue);
84          System.out.println("IntValue: " + _intValue);
85          System.out.println("DoubleValue: " + _doubleValue);
86          System.out.println("AdderService result: " + _adderService.add(10, 20));
87          System.out.println("Configuration size: " + _configuration.size());
88          System.out.println("Container type: " + _container.getClass().getName());
89          Properties   properties = loadResource();
90          System.out.println("Text resource content: " + properties.toString());
91      }
92  
93      /**
94       * Loads the properties file reference by property textResource
95       */
96      private Properties   loadResource()
97      {
98          Properties   properties = new Properties  ();
99          try
100         {
101             properties.load(_textResource.getResourceURL().openStream());
102         }
103         catch (IOException   ignore)
104         {
105         }
106         return properties;
107     }
108 }
109
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