1 /* gnu.java.beans.decoder.ArrayHandler
2 Copyright (C) 2004 Free Software Foundation, Inc.
4 This file is part of GNU Classpath.
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING. If not, write to the
18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library. Thus, the terms and
23 conditions of the GNU General Public License cover the whole
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module. An independent module is a module which is not derived from
33 or based on this library. If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so. If you do not wish to do so, delete this
36 exception statement from your version. */
38 package gnu.java.beans.decoder;
40 import java.beans.ExceptionListener;
41 import java.util.HashMap;
43 import org.xml.sax.Attributes;
45 /** ArrayHandler processes the <array> tag. Depending on the existance of the 'length' attribute a Context for
46 * a fixed-size or growable array is created.
48 * @author Robert Schuster
50 class ArrayHandler extends AbstractElementHandler
52 /** Contains a mapping between a textual description of a primitive type (like "byte") and
53 * its corresponding wrapper class. This allows it to easily construct Array objects for
54 * primitive data types.
56 private static HashMap typeMap = new HashMap();
60 typeMap.put("byte", Byte.TYPE);
61 typeMap.put("short", Short.TYPE);
62 typeMap.put("int", Integer.TYPE);
63 typeMap.put("long", Long.TYPE);
65 typeMap.put("float", Float.TYPE);
66 typeMap.put("double", Double.TYPE);
68 typeMap.put("boolean", Boolean.TYPE);
70 typeMap.put("char", Character.TYPE);
74 * @param PersistenceParser
76 ArrayHandler(ElementHandler parent)
81 protected Context startElement(Attributes attributes, ExceptionListener exceptionListener)
82 throws AssemblyException, AssemblyException
84 String id = attributes.getValue("id");
85 String className = attributes.getValue("class");
87 if (className != null)
93 if (typeMap.containsKey(className))
94 klass = (Class) typeMap.get(className);
96 klass = instantiateClass(className);
98 String length = attributes.getValue("length");
100 // creates Array with predefined length
101 return new ArrayContext(id, klass, Integer.parseInt(length));
103 // creates Array without length restriction
104 return new GrowableArrayContext(id, klass);
106 catch (ClassNotFoundException cnfe)
108 throw new AssemblyException(cnfe);
110 catch (NumberFormatException nfe)
112 throw new AssemblyException(nfe);
116 throw new AssemblyException(new IllegalArgumentException("Missing 'class' attribute in <array> tag."));