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Java > Open Source Codes > org > openlaszlo > iv > flash > xml > XMLDataSource


1 /*
2  * $Id: XMLDataSource.java,v 1.1 2002/02/15 23:44:28 skavish Exp $
3  *
4  * ===========================================================================
5  *
6  * The JGenerator Software License, Version 1.0
7  *
8  * Copyright (c) 2000 Dmitry Skavish (skavish@usa.net). All rights reserved.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions are met:
12  *
13  * 1. Redistributions of source code must retain the above copyright
14  * notice, this list of conditions and the following disclaimer.
15  *
16  * 2. Redistributions in binary form must reproduce the above copyright
17  * notice, this list of conditions and the following disclaimer in
18  * the documentation and/or other materials provided with the
19  * distribution.
20  *
21  * 3. The end-user documentation included with the redistribution, if
22  * any, must include the following acknowlegement:
23  * "This product includes software developed by Dmitry Skavish
24  * (skavish@usa.net, http://www.flashgap.com/)."
25  * Alternately, this acknowlegement may appear in the software itself,
26  * if and wherever such third-party acknowlegements normally appear.
27  *
28  * 4. The name "The JGenerator" must not be used to endorse or promote
29  * products derived from this software without prior written permission.
30  * For written permission, please contact skavish@usa.net.
31  *
32  * 5. Products derived from this software may not be called "The JGenerator"
33  * nor may "The JGenerator" appear in their names without prior written
34  * permission of Dmitry Skavish.
35  *
36  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
37  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
38  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
39  * DISCLAIMED. IN NO EVENT SHALL DMITRY SKAVISH OR THE OTHER
40  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
42  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
43  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
44  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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46  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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49  */
50
51 package org.openlaszlo.iv.flash.xml;
52
53 import java.io.*;
54 import java.util.*;
55
56 import org.w3c.dom.Node JavaDoc;
57 import org.xml.sax.SAXException JavaDoc;
58
59 import org.openlaszlo.iv.flash.api.*;
60 import org.openlaszlo.iv.flash.url.*;
61 import org.openlaszlo.iv.flash.util.*;
62
63 /**
64  * XML datasource.
65  * <P>
66  * Helps in reading and parsing xml data
67  *
68  * @author Dmitry Skavish
69  */
70 public class XMLDataSource {
71
72     private Node JavaDoc node;
73
74     public XMLDataSource() {}
75
76     public XMLDataSource( String JavaDoc surl, FlashFile flashFile ) throws IVException, IOException, SAXException JavaDoc {
77         if( surl == null || surl.length() == 0 ) {
78             throw new IOException( "null datasource" );
79         }
80
81         if( surl.charAt(0) == '#' || surl.charAt(0) == '=' ) {
82             byte[] bytes = flashFile.getEncoding() != null? surl.substring(1).getBytes(flashFile.getEncoding()):
83                                                             surl.substring(1).getBytes();
84             node = XMLHelper.parse( new ByteArrayInputStream( bytes ) );
85         } else {
86             IVUrl url = IVUrl.newUrl( surl, flashFile );
87             node = XMLHelper.getNode( url );
88         }
89     }
90
91     public Node JavaDoc getNode() {
92         return node;
93     }
94 }
95
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