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: FrozenElementFilter.java 41137 2011-01-06 18:19:25Z gjoseph $
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 public void endElement(String uri, String localName, String qName) throws SAXException {
76
77 if (inVersionElement > 0) {
78 inVersionElement--;
79 return;
80 }
81
82 super.endElement(uri, localName, qName);
83 }
84
85 /**
86 * @see org.xml.sax.helpers.XMLFilterImpl#characters(char[], int, int)
87 */
88 public void characters(char[] ch, int start, int length) throws SAXException {
89 // filter content
90 if (inVersionElement == 0) {
91 super.characters(ch, start, length);
92 }
93 }
94
95 /**
96 * @see org.xml.sax.helpers.XMLFilterImpl#startElement(String, String, String, org.xml.sax.Attributes)
97 */
98 public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException {
99
100 if (inVersionElement > 0) {
101 inVersionElement++;
102 return;
103 }
104 if ("sv:property".equals(qName)) { //$NON-NLS-1$
105 String attName = atts.getValue("sv:name"); //$NON-NLS-1$
106 if (attName != null) {
107 if ("jcr:predecessors".equals(attName)
108 || "jcr:baseVersion".equals(attName)
109 || "jcr:primaryType".equals(attName)
110 || "jcr:uuid".equals(attName)
111 || "jcr:mixinTypes".equals(attName)
112 || "jcr:isCheckedOut".equals(attName)
113 || "jcr:created".equals(attName)
114 || "mgnl:sequenceposition".equals(attName)
115 || "jcr:versionHistory" //$NON-NLS-1$
116 .equals(attName)) {
117 inVersionElement++;
118 return;
119 }
120 else if ("jcr:frozenPrimaryType".equals(attName)) {
121 AttributesImpl attributesImpl = new AttributesImpl(atts);
122 int index = attributesImpl.getIndex("sv:name");
123 attributesImpl.setValue(index, "jcr:primaryType");
124 atts = attributesImpl;
125 }
126 else if ("jcr:frozenMixinTypes".equals(attName)) {
127 AttributesImpl attributesImpl = new AttributesImpl(atts);
128 int index = attributesImpl.getIndex("sv:name");
129 attributesImpl.setValue(index, "jcr:mixinTypes");
130 atts = attributesImpl;
131 }
132 else if ("jcr:frozenUuid".equals(attName)) {
133 AttributesImpl attributesImpl = new AttributesImpl(atts);
134 int index = attributesImpl.getIndex("sv:name");
135 attributesImpl.setValue(index, "jcr:uuid");
136 atts = attributesImpl;
137 }
138 }
139 }
140 else if ("sv:node".equals(qName)) {
141 String attName = atts.getValue("sv:name");
142 if (attName != null) {
143 if ("jcr:frozenNode".equals(attName)) {
144 AttributesImpl attributesImpl = new AttributesImpl(atts);
145 int index = attributesImpl.getIndex("sv:name");
146 attributesImpl.setValue(index, this.nodeName);
147 atts = attributesImpl;
148 }
149 }
150 }
151
152 super.startElement(uri, localName, qName, atts);
153 }
154
155 }