1 /**
2 * Redistribution and use of this software and associated documentation
3 * ("Software"), with or without modification, are permitted provided
4 * that the following conditions are met:
5 *
6 * 1. Redistributions of source code must retain copyright
7 * statements and notices. Redistributions must also contain a
8 * copy of this document.
9 *
10 * 2. Redistributions in binary form must reproduce the
11 * above copyright notice, this list of conditions and the
12 * following disclaimer in the documentation and/or other
13 * materials provided with the distribution.
14 *
15 * 3. The name "Exolab" must not be used to endorse or promote
16 * products derived from this Software without prior written
17 * permission of Intalio, Inc. For written permission,
18 * please contact info@exolab.org.
19 *
20 * 4. Products derived from this Software may not be called "Exolab"
21 * nor may "Exolab" appear in their names without prior written
22 * permission of Intalio, Inc. Exolab is a registered
23 * trademark of Intalio, Inc.
24 *
25 * 5. Due credit should be given to the Exolab Project
26 * (http://www.exolab.org/).
27 *
28 * THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS
29 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
32 * INTALIO, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39 * OF THE POSSIBILITY OF SUCH DAMAGE.
40 *
41 * Copyright 1999 (C) Intalio, Inc. All Rights Reserved.
42 *
43 * $Id$
44 */
45
46
47 package org.exolab.castor.dsml;
48
49
50 import org.xml.sax.DocumentHandler;
51 import org.xml.sax.SAXException;
52 import org.xml.sax.helpers.AttributeListImpl;
53
54
55 /**
56 *
57 *
58 * @author <a href="mailto:arkin@intalio.com">Assaf Arkin</a>
59 * @version $Revision$ $Date: 2006-04-25 15:08:23 -0600 (Tue, 25 Apr 2006) $
60 */
61 public abstract class Producer
62 {
63
64
65 protected DocumentHandler _docHandler;
66
67
68 private boolean _namespace;
69
70
71 private boolean _insideDirectory;
72
73
74 private boolean _insideSchema;
75
76
77
78 public Producer( DocumentHandler docHandler, boolean namespace )
79 {
80 _docHandler = docHandler;
81 _namespace = namespace;
82 }
83
84
85 public void startDocument()
86 throws SAXException
87 {
88 AttributeListImpl attrList;
89
90 attrList = new AttributeListImpl();
91 if ( _namespace )
92 attrList.addAttribute( "xmlns:" + XML.Namespace.PREFIX, "CDATA", XML.Namespace.URI );
93 else
94 attrList.addAttribute( "xmlns", "CDATA", XML.Namespace.URI );
95 _docHandler.startElement( prefix( XML.Namespace.ROOT ), attrList );
96
97 }
98
99
100 public void endDocument()
101 throws SAXException
102 {
103 leaveDirectory();
104 leaveSchema();
105 _docHandler.endElement( prefix( XML.Namespace.ROOT ) );
106 }
107
108
109 public void produce( ImportDescriptor importDesc )
110 throws SAXException
111 {
112 leaveDirectory();
113 leaveSchema();
114 importDesc.produce( _docHandler );
115 }
116
117
118 public void produce( SearchDescriptor searchDesc )
119 throws SAXException
120 {
121 leaveDirectory();
122 leaveSchema();
123 searchDesc.produce( _docHandler );
124 }
125
126
127 protected void enterDirectory()
128 throws SAXException
129 {
130 // If not inside directory element, start it
131 if ( ! _insideDirectory ) {
132 _insideDirectory = true;
133 _docHandler.startElement( prefix( XML.Entries.ELEMENT ), new AttributeListImpl() );
134 }
135 }
136
137
138 protected void leaveDirectory()
139 throws SAXException
140 {
141 // If inside directory element, end it
142 if ( _insideDirectory ) {
143 _insideDirectory = false;
144 _docHandler.endElement( prefix( XML.Entries.ELEMENT ) );
145 }
146 }
147
148
149 protected void enterSchema()
150 throws SAXException
151 {
152 // If not inside schema element, start it
153 if ( ! _insideSchema ) {
154 _insideSchema = true;
155 _docHandler.startElement( prefix( XML.Schema.ELEMENT ), new AttributeListImpl() );
156 }
157 }
158
159
160 protected void leaveSchema()
161 throws SAXException
162 {
163 // If not inside schema element, end it
164 if ( _insideSchema ) {
165 _insideSchema = false;
166 _docHandler.endElement( prefix( XML.Schema.ELEMENT ) );
167 }
168 }
169
170
171 protected String prefix( String tagName )
172 {
173 if ( _namespace )
174 return XML.Namespace.PREFIX + ":" + tagName;
175 return tagName;
176 }
177
178
179 }