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


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.program.JavaClassDef;
35 import com.caucho.util.L10N;
36
37 /**
38  * Code for marshalling arguments.
39  */

40 public class JavaListMarshal extends JavaMarshal {
41   private static final L10N L = new L10N(JavaMarshal.class);
42
43   public JavaListMarshal(JavaClassDef def,
44                       boolean isNotNull)
45   {
46     this(def, isNotNull, false);
47   }
48
49   public JavaListMarshal(JavaClassDef def,
50                       boolean isNotNull,
51                       boolean isUnmarshalNullAsFalse)
52   {
53     super(def, isNotNull, isUnmarshalNullAsFalse);
54   }
55
56   public Object JavaDoc marshal(Env env, Value value, Class JavaDoc argClass)
57   {
58     if (! value.isset()) {
59       if (_isNotNull) {
60         env.warning(L.l("null is an unexpected argument, expected {0}",
61                         shortName(argClass)));
62       }
63
64       return null;
65     }
66
67     Object JavaDoc obj = value.toJavaList(env, argClass);
68
69     if (obj == null) {
70       if (_isNotNull) {
71         env.warning(L.l("null is an unexpected argument, expected {0}",
72                         shortName(argClass)));
73       }
74
75       return null;
76     }
77     else if (! argClass.isAssignableFrom(obj.getClass())) {
78       env.warning(L.l("'{0}' of type '{1}' is an unexpected argument, expected {2}", value, shortName(value.getClass()), shortName(argClass)));
79       return null;
80     }
81
82     return obj;
83   }
84 }
85
86
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