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Java > Open Source Codes > com > caucho > es > parser > JavaTypeExpr


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  * Free SoftwareFoundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.es.parser;
30
31 import com.caucho.es.ESException;
32 import com.caucho.es.ESId;
33 import com.caucho.server.util.CauchoSystem;
34
35 /**
36  * Expression for a java type.
37  */
38 class JavaTypeExpr extends TypeExpr {
39   JavaTypeExpr(Block block, String JavaDoc className)
40   {
41     super(block, null);
42
43     this.type = TYPE_JAVA;
44     _typeName = className;
45     try {
46       this.javaType = CauchoSystem.loadClass(className, false,
47                                              block.getClassLoader());
48     } catch (Exception JavaDoc e) {
49       this.type = TYPE_ES;
50     }
51   }
52
53   JavaTypeExpr(Block block, Class JavaDoc javaClass)
54   {
55     super(block, null);
56
57     this.type = TYPE_JAVA;
58     this.javaType = javaClass;
59
60     _typeName = getTypeName(javaClass);
61   }
62
63   private String JavaDoc getTypeName(Class JavaDoc cl)
64   {
65     if (cl.isArray())
66       return getTypeName(cl.getComponentType()) + "[]";
67     else
68       return cl.getName();
69   }
70   
71   Expr fieldReference(ESId id)
72     throws ESException
73   {
74     if (_typeName.equals(""))
75       return new JavaTypeExpr(block, id.toString());
76     else
77       return new JavaTypeExpr(block, _typeName + "." + id);
78   }
79   
80   public String JavaDoc toString()
81   {
82     return "[JavaTypeExpr " + javaType + " " + type + "]";
83   }
84 }
85
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