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Java > Open Source Codes > nextapp > echo2 > app > componentxml > propertypeer > InsetsPeer


1 /*
2  * This file is part of the Echo Web Application Framework (hereinafter "Echo").
3  * Copyright (C) 2002-2005 NextApp, Inc.
4  *
5  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
6  *
7  * The contents of this file are subject to the Mozilla Public License Version
8  * 1.1 (the "License"); you may not use this file except in compliance with
9  * the License. You may obtain a copy of the License at
10  * http://www.mozilla.org/MPL/
11  *
12  * Software distributed under the License is distributed on an "AS IS" basis,
13  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
14  * for the specific language governing rights and limitations under the
15  * License.
16  *
17  * Alternatively, the contents of this file may be used under the terms of
18  * either the GNU General Public License Version 2 or later (the "GPL"), or
19  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
20  * in which case the provisions of the GPL or the LGPL are applicable instead
21  * of those above. If you wish to allow use of your version of this file only
22  * under the terms of either the GPL or the LGPL, and not to allow others to
23  * use your version of this file under the terms of the MPL, indicate your
24  * decision by deleting the provisions above and replace them with the notice
25  * and other provisions required by the GPL or the LGPL. If you do not delete
26  * the provisions above, a recipient may use your version of this file under
27  * the terms of any one of the MPL, the GPL or the LGPL.
28  */
29
30 package nextapp.echo2.app.componentxml.propertypeer;
31
32 import java.util.StringTokenizer JavaDoc;
33
34 import org.w3c.dom.Element JavaDoc;
35
36 import nextapp.echo2.app.Extent;
37 import nextapp.echo2.app.Insets;
38 import nextapp.echo2.app.componentxml.InvalidPropertyException;
39 import nextapp.echo2.app.componentxml.PropertyXmlPeer;
40
41 /**
42  * <code>PropertyXmlPeer</code> implementation for
43  * <code>nextapp.echo2.app.Insets</code> properties.
44  */
45 public class InsetsPeer
46 implements PropertyXmlPeer {
47     
48     public static Insets toInsets(String JavaDoc value)
49     throws InvalidPropertyException {
50         StringTokenizer JavaDoc st = new StringTokenizer JavaDoc(value, " ");
51         int count = st.countTokens();
52         switch (count) {
53         case 1:
54             Extent extent = ExtentPeer.toExtent(st.nextToken());
55             return new Insets(extent);
56         case 2:
57             Extent horizontal = ExtentPeer.toExtent(st.nextToken());
58             Extent vertical = ExtentPeer.toExtent(st.nextToken());
59             return new Insets(horizontal, vertical);
60         case 4:
61             Extent left = ExtentPeer.toExtent(st.nextToken());
62             Extent top = ExtentPeer.toExtent(st.nextToken());
63             Extent right = ExtentPeer.toExtent(st.nextToken());
64             Extent bottom = ExtentPeer.toExtent(st.nextToken());
65             return new Insets(left, top, right, bottom);
66         default:
67             throw new InvalidPropertyException("Invalid Insets value: " + value, null);
68         }
69     }
70
71     /**
72      * @see nextapp.echo2.app.componentxml.PropertyXmlPeer#getValue(java.lang.ClassLoader,
73      * java.lang.Class, org.w3c.dom.Element)
74      */
75     public Object JavaDoc getValue(ClassLoader JavaDoc classLoader, Class JavaDoc objectClass, Element JavaDoc propertyElement)
76     throws InvalidPropertyException {
77         String JavaDoc value = propertyElement.getAttribute("value");
78         return toInsets(value);
79     }
80 }
81
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