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Java > Open Source Codes > com > puppycrawl > tools > checkstyle > checks > usage > transmogrify > BaseScope


1
2 // Transmogrify License
3 //
4 // Copyright (c) 2001, ThoughtWorks, Inc.
5 // All rights reserved.
6 // Redistribution and use in source and binary forms, with or without
7 // modification, are permitted provided that the following conditions
8 // are met:
9 // - Redistributions of source code must retain the above copyright notice,
10 // this list of conditions and the following disclaimer.
11 // - Redistributions in binary form must reproduce the above copyright
12 // notice, this list of conditions and the following disclaimer in the
13 // documentation and/or other materials provided with the distribution.
14 // Neither the name of the ThoughtWorks, Inc. nor the names of its
15 // contributors may be used to endorse or promote products derived from this
16 // software without specific prior written permission.
17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19 // TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
21 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
24 // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
27 // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29 package com.puppycrawl.tools.checkstyle.checks.usage.transmogrify;
30
31 /**
32  * the bottom scope of the scope stack, contains some extra information
33  * to make resolution easier.
34  */
35
36
37
38 public class BaseScope extends DefaultScope {
39   private SymbolTable table;
40
41   public BaseScope( SymbolTable symbolTable ) {
42     super("~BASE~", null, null);
43     this.table = symbolTable;
44   }
45
46   public boolean isBaseScope() {
47     return true;
48   }
49
50   public void addDefinition(IPackage def) {
51     elements.put(def.getName(), def);
52   }
53
54   /**
55    * gets the package associated with a fully qualified name
56    *
57    * @param fullyQualifiedName the name of the package
58    *
59    * @return the package that was gotten
60    */
61   public IPackage getPackageDefinition(String JavaDoc fullyQualifiedName) {
62     return (IPackage)(table.getPackages().get(fullyQualifiedName));
63   }
64
65   public IClass getClassDefinition(String JavaDoc name) {
66     IClass result = null;
67
68     result = LiteralResolver.getDefinition(name);
69
70     if (result == null) {
71       int lastDot = name.lastIndexOf(".");
72       if (lastDot > 0) {
73         String JavaDoc packageName = name.substring(0, lastDot);
74         String JavaDoc className = name.substring(lastDot + 1);
75
76         IPackage pkg = getPackageDefinition(packageName);
77         if (pkg != null) {
78           result = pkg.getClass(className);
79         }
80       }
81     }
82
83     if (result == null) {
84       Class JavaDoc theClass = null;
85       try {
86         theClass = ClassManager.getClassLoader().loadClass(name);
87         result = new ExternalClass(theClass);
88       }
89       catch (ClassNotFoundException JavaDoc e) {
90         // no-op
91 }
92       catch (NoClassDefFoundError JavaDoc e) {
93         // no-op, checkstyle bug 842781
94 }
95     }
96
97     return result;
98   }
99 }
100
101
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