1 /**
2 * This file Copyright (c) 2003-2011 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.module.exchangesimple;
35
36 import info.magnolia.importexport.filters.VersionFilter;
37 import org.xml.sax.Attributes;
38 import org.xml.sax.SAXException;
39 import org.xml.sax.XMLReader;
40 import org.xml.sax.helpers.AttributesImpl;
41
42
43 /**
44 * This filter converts frozen nodes to mimic actual state of a node, this is only meant to be used while activating versioned content.
45 * Taken from:
46 * @see info.magnolia.importexport.filters.VersionFilter $Id$
47 */
48 class FrozenElementFilter extends VersionFilter {
49
50 /**
51 * if != 0 we are in the middle of a filtered element.
52 */
53 private int inVersionElement;
54
55 /**
56 * Original node name.
57 */
58 private String nodeName;
59
60 /**
61 * Instantiates a new version filter.
62 * @param parent wrapped XMLReader
63 */
64 protected FrozenElementFilter(XMLReader parent) {
65 super(parent);
66 }
67
68 protected void setNodeName(String name) {
69 this.nodeName = name;
70 }
71
72 /**
73 * @see org.xml.sax.helpers.XMLFilterImpl#endElement(String, String, String)
74 */
75 @Override
76 public void endElement(String uri, String localName, String qName) throws SAXException {
77
78 if (inVersionElement > 0) {
79 inVersionElement--;
80 return;
81 }
82
83 super.endElement(uri, localName, qName);
84 }
85
86 /**
87 * @see org.xml.sax.helpers.XMLFilterImpl#characters(char[], int, int)
88 */
89 @Override
90 public void characters(char[] ch, int start, int length) throws SAXException {
91 // filter content
92 if (inVersionElement == 0) {
93 super.characters(ch, start, length);
94 }
95 }
96
97 /**
98 * @see org.xml.sax.helpers.XMLFilterImpl#startElement(String, String, String, org.xml.sax.Attributes)
99 */
100 @Override
101 public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException {
102
103 if (inVersionElement > 0) {
104 inVersionElement++;
105 return;
106 }
107 if ("sv:property".equals(qName)) { //$NON-NLS-1$
108 String attName = atts.getValue("sv:name"); //$NON-NLS-1$
109 if (attName != null) {
110 if ("jcr:predecessors".equals(attName)
111 || "jcr:baseVersion".equals(attName)
112 || "jcr:primaryType".equals(attName)
113 || "jcr:uuid".equals(attName)
114 || "jcr:mixinTypes".equals(attName)
115 || "jcr:isCheckedOut".equals(attName)
116 || "jcr:created".equals(attName)
117 || "mgnl:sequenceposition".equals(attName)
118 || "jcr:versionHistory" //$NON-NLS-1$
119 .equals(attName)) {
120 inVersionElement++;
121 return;
122 }
123 else if ("jcr:frozenPrimaryType".equals(attName)) {
124 AttributesImpl attributesImpl = new AttributesImpl(atts);
125 int index = attributesImpl.getIndex("sv:name");
126 attributesImpl.setValue(index, "jcr:primaryType");
127 atts = attributesImpl;
128 }
129 else if ("jcr:frozenMixinTypes".equals(attName)) {
130 AttributesImpl attributesImpl = new AttributesImpl(atts);
131 int index = attributesImpl.getIndex("sv:name");
132 attributesImpl.setValue(index, "jcr:mixinTypes");
133 atts = attributesImpl;
134 }
135 else if ("jcr:frozenUuid".equals(attName)) {
136 AttributesImpl attributesImpl = new AttributesImpl(atts);
137 int index = attributesImpl.getIndex("sv:name");
138 attributesImpl.setValue(index, "jcr:uuid");
139 atts = attributesImpl;
140 }
141 }
142 }
143 else if ("sv:node".equals(qName)) {
144 String attName = atts.getValue("sv:name");
145 if (attName != null) {
146 if ("jcr:frozenNode".equals(attName)) {
147 AttributesImpl attributesImpl = new AttributesImpl(atts);
148 int index = attributesImpl.getIndex("sv:name");
149 attributesImpl.setValue(index, this.nodeName);
150 atts = attributesImpl;
151 }
152 }
153 }
154
155 super.startElement(uri, localName, qName, atts);
156 }
157
158 }