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[utils] / system / general / src / test / java / org / wamblee / system / core / IntegerComponent.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.DefaultProvidedInterface;
22 import org.wamblee.system.core.ProvidedInterface;
23 import org.wamblee.system.core.RequiredInterface;
24 import org.wamblee.test.EventTracker;
25
26 public class IntegerComponent extends AbstractComponent<Object> {
27
28         private static final ProvidedInterface[] provided(String aPrefix) {
29                 return new ProvidedInterface[] {
30                                 new DefaultProvidedInterface(aPrefix + "integer", Integer.class) };
31         }
32
33         private EventTracker<String> _tracker;
34         private double _random;
35
36         public IntegerComponent() {
37                 this("environment");
38         }
39         
40         public IntegerComponent(String aName) {
41        this(aName, "");
42     }
43         
44         public IntegerComponent(String aName, String aPrefix) {
45         super(aName, provided(aPrefix), new RequiredInterface[0]);
46         _random = Math.random();
47     }
48
49
50
51         public IntegerComponent(EventTracker aTracker) {
52                 this();
53                 _tracker = aTracker;
54         }
55
56         public Integer getInteger() {
57                 return 2;
58         }
59
60         @Override
61         protected Object doStart(Scope aScope) {
62                 addInterface(getProvidedInterfaces().get(1), getInteger(), aScope);
63                 track("start." + getName());
64                 return _random;
65         }
66
67         @Override
68         protected void doStop(Object aRuntime) {
69                 track("stop." + getName());
70                 if (_random != (Double) aRuntime) {
71                         throw new IllegalArgumentException("Wrong runtime: expected "
72                                         + _random + " but got " + aRuntime);
73                 }
74         }
75
76         private void track(String aString) {
77                 if (_tracker == null) {
78                         return;
79                 }
80                 _tracker.eventOccurred(aString);
81         }
82 }