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Java > Open Source Codes > net > sourceforge > groboutils > codecoverage > v2 > datastore > DirClassMetaDataReader


1 /*
2  * @(#)DirClassMetaDataReader.java
3  *
4  * Copyright (C) 2002-2003 Matt Albrecht
5  * groboclown@users.sourceforge.net
6  * http://groboutils.sourceforge.net
7  *
8  * Permission is hereby granted, free of charge, to any person obtaining a
9  * copy of this software and associated documentation files (the "Software"),
10  * to deal in the Software without restriction, including without limitation
11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12  * and/or sell copies of the Software, and to permit persons to whom the
13  * Software is furnished to do so, subject to the following conditions:
14  *
15  * The above copyright notice and this permission notice shall be included in
16  * all copies or substantial portions of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
23  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
24  * DEALINGS IN THE SOFTWARE.
25  */
26
27 package net.sourceforge.groboutils.codecoverage.v2.datastore;
28
29 import java.io.IOException JavaDoc;
30
31 import net.sourceforge.groboutils.codecoverage.v2.IAnalysisModule;
32
33
34 /**
35  * Knows how to operate the repository for the meta-data.
36  *
37  * @author Matt Albrecht <a HREF="mailto:groboclown@users.sourceforge.net">groboclown@users.sourceforge.net</a>
38  * @version $Date: 2004/04/15 05:48:26 $
39  * @since December 16, 2002
40  */
41 public class DirClassMetaDataReader implements IClassMetaDataReader
42 {
43     private DirMetaDataIO store;
44     private IAnalysisModule am;
45     private AnalysisModuleSet ams;
46     
47     DirClassMetaDataReader( IAnalysisModule module, DirMetaDataIO data )
48             throws IOException JavaDoc
49     {
50         if (data == null || module == null)
51         {
52             throw new IllegalArgumentException JavaDoc("no null args");
53         }
54         this.store = data;
55         this.am = module;
56         this.ams = data.getAnalysisModuleSet();
57     }
58     
59     
60     /**
61      * Returns the class record for the class with this particular signature.
62      */
63     public ClassRecord readClass( String JavaDoc classSignature )
64             throws IOException JavaDoc
65     {
66         if (classSignature == null)
67         {
68             throw new IllegalArgumentException JavaDoc("no null args");
69         }
70         checkClose();
71         return this.store.getClassRecord( this.ams, this.am, classSignature );
72     }
73     
74     
75     /**
76      * Returns all classes known for this particular data set.
77      */
78     public String JavaDoc[] getClassSignatures()
79             throws IOException JavaDoc
80     {
81         checkClose();
82         return this.store.getClassSigsForAnalysisModule( this.am );
83     }
84     
85     
86     /**
87      * Closes this reader to prevent further access.
88      */
89     public void close()
90             throws IOException JavaDoc
91     {
92         checkClose();
93         // do not close the store!!
94 this.store = null;
95     }
96     
97     
98     private void checkClose()
99             throws IOException JavaDoc
100     {
101         if (this.store == null)
102         {
103             throw new IOException JavaDoc( "Reader has already been closed." );
104         }
105     }
106     
107     
108     
109     protected void finalize() throws Throwable JavaDoc
110     {
111         super.finalize();
112         
113         if (this.store != null)
114         {
115             throw new IllegalStateException JavaDoc("Did not close reader.");
116         }
117     }
118 }
119
120
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