KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > caucho > quercus > function > ExtValueMarshal


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  *
23  * Free Software Foundation, Inc.
24  * 59 Temple Place, Suite 330
25  * Boston, MA 02111-1307 USA
26  *
27  * @author Scott Ferguson
28  */
29
30 package com.caucho.quercus.function;
31
32 import com.caucho.quercus.env.Env;
33 import com.caucho.quercus.env.Value;
34 import com.caucho.quercus.expr.Expr;
35
36 /**
37  * Code for marshaling (PHP to Java) and unmarshaling (Java to PHP) arguments.
38  */
39 public class ExtValueMarshal extends Marshal
40 {
41   public static final ExtValueMarshal MARSHAL = new ExtValueMarshal();
42
43   public boolean isReadOnly()
44   {
45     return false;
46   }
47
48   public Object JavaDoc marshal(Env env, Expr expr, Class JavaDoc expectedClass)
49   {
50     return marshal(env, expr.eval(env), expectedClass);
51   }
52
53   public Object JavaDoc marshal(Env env, Value value, Class JavaDoc expectedClass)
54   {
55     if (value == null || ! value.isset())
56       return null;
57
58     // XXX: need QA, added for mantis view bug page
59 value = value.toValue();
60
61     if (expectedClass.isAssignableFrom(value.getClass()))
62       return value;
63     else {
64       String JavaDoc className = expectedClass.getName();
65       int p = className.lastIndexOf('.');
66       className = className.substring(p + 1);
67
68       String JavaDoc valueClassName = value.getClass().getName();
69       p = valueClassName.lastIndexOf('.');
70       valueClassName = valueClassName.substring(p + 1);
71
72       env.warning(L.l("'{0}' of type `{1}' is an unexpected argument, expected {2}",
73               value, valueClassName, className));
74
75       return null;
76     }
77   }
78
79   public Value unmarshal(Env env, Object JavaDoc value)
80   {
81     return (Value) value;
82   }
83 }
84
Popular Tags