Huge refactoring.
[utils] / system / general / src / test / java / org / wamblee / system / core / Application.java
1 /*
2  * Copyright 2007 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 package org.wamblee.system.core;
17
18 import javax.sql.DataSource;
19
20 import org.wamblee.system.core.AbstractComponent;
21 import org.wamblee.system.core.DefaultRequiredInterface;
22 import org.wamblee.system.core.ProvidedInterface;
23 import org.wamblee.system.core.RequiredInterface;
24 import org.wamblee.test.EventTracker;
25
26 public class Application extends AbstractComponent {
27         public static RequiredInterface[] required(boolean aOptional) {
28                 return
29                 new RequiredInterface[] { 
30                         new DefaultRequiredInterface("string", String.class, aOptional), 
31                         new DefaultRequiredInterface("integer", Integer.class, aOptional)
32         };
33         }
34
35         private EventTracker<String> _tracker;
36         private String _string; 
37         private Integer _integer;
38         private double _random; 
39         
40         public Application() {
41                 super("application", new ProvidedInterface[0], required(false));
42                 _random = Math.random();
43         }
44         
45         public Application(boolean aIsOptinal) { 
46                 super("application", new ProvidedInterface[0], required(true)); 
47         }
48         
49         public Application(EventTracker<String> aTracker) { 
50                 this();
51                 _tracker = aTracker; 
52         }
53
54         @Override
55         protected Object doStart(Scope aScope) {
56                 track("start." + getName());
57                 _string = aScope.retrieveInterfaceImplementation(getRequiredInterfaces()[0].getProvider(), String.class);
58             _integer = aScope.retrieveInterfaceImplementation(getRequiredInterfaces()[1].getProvider(), Integer.class);
59             return _random; 
60         }
61         
62         public String getString() {
63                 return _string;
64         }
65         
66         public Integer getInteger() {
67                 return _integer;
68         }
69         
70         @Override
71         protected void doStop(Object aRuntime) {
72                 track("stop." + getName());
73                 if ( _random != (Double)aRuntime) { 
74                         throw new IllegalArgumentException("Wrong runtime: expected " + _random + " but got " +
75                                         aRuntime);
76                 }
77         }
78         
79         private void track(String aString) {
80                 if ( _tracker == null ) { 
81                         return; 
82                 }
83                 _tracker.eventOccurred(aString);
84         }
85 }