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