1 /**
2 * This file Copyright (c) 2003-2010 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.importexport.filters;
35
36 import info.magnolia.cms.util.UnicodeNormalizer;
37
38 import org.xml.sax.Attributes;
39 import org.xml.sax.SAXException;
40 import org.xml.sax.XMLReader;
41 import org.xml.sax.helpers.XMLFilterImpl;
42
43
44 public class ImportXmlRootFilter extends XMLFilterImpl {
45
46 // this is true if it is an import of a file containing jcr:root node
47 public boolean rootNodeFound = false;
48
49 private boolean isRootNode = false;
50
51 private boolean isPrimaryTypeProperty = false;
52
53 private boolean isPrimaryTypeValue = false;
54
55 /**
56 * if != 0 we are in the middle of a filtered element.
57 */
58 private int inFilterElement;
59
60 public ImportXmlRootFilter(XMLReader parent) {
61 super(parent);
62 }
63
64 /**
65 * @see org.xml.sax.helpers.XMLFilterImpl#endElement(String, String, String)
66 */
67 public void endElement(String uri, String localName, String qName) throws SAXException {
68
69 if (inFilterElement > 0) {
70 inFilterElement--;
71 return;
72 }
73
74 super.endElement(uri, localName, qName);
75 }
76
77 /**
78 * Root node was found should be called after parsing to check if a root node was indeed found
79 */
80 public boolean rootNodeWasFound() {
81 return rootNodeFound;
82 }
83
84 /**
85 * @see org.xml.sax.helpers.XMLFilterImpl#characters(char[], int, int)
86 */
87 public void characters(char[] ch, int start, int length) throws SAXException {
88 // filter content
89 if (inFilterElement == 0) {
90 // change primary type of root node
91 if (this.isPrimaryTypeValue) {
92 this.isRootNode = false;
93 this.isPrimaryTypeProperty = false;
94 this.isPrimaryTypeValue = false;
95
96 super.characters("mgnl:content".toCharArray(), 0, "mgnl:content".length());
97 }
98 else {
99 super.characters(ch, start, length);
100 }
101 }
102 }
103
104 /**
105 * @see org.xml.sax.helpers.XMLFilterImpl#startElement(String, String, String, Attributes)
106 */
107 /*
108 * (non-Javadoc)
109 * @see org.xml.sax.ContentHandler#startElement(java.lang.String, java.lang.String, java.lang.String,
110 * org.xml.sax.Attributes)
111 */
112 public void startElement(String uri, String localName, String qName, Attributes atts) throws SAXException {
113 // filter if already in a version element
114 if (inFilterElement > 0) {
115 inFilterElement++;
116 return;
117 }
118
119 // filter if it is the version store
120 if ("sv:node".equals(qName)) { //$NON-NLS-1$
121 String attName = atts.getValue("sv:name"); //$NON-NLS-1$
122 attName = UnicodeNormalizer.normalizeNFC(attName);
123 // remember if there was a root node presend
124 if ("jcr:root".equals(attName)) {
125 this.rootNodeFound = true;
126 this.isRootNode = true;
127 }
128
129 if ("jcr:system".equals(attName)) { //$NON-NLS-1$
130 inFilterElement++;
131 return;
132 }
133 }
134
135 // change the nodetype of the jcr:root node
136 if (this.isRootNode && "sv:property".equals(qName) && "jcr:primaryType".equals(atts.getValue("sv:name"))) {
137 this.isPrimaryTypeProperty = true;
138 }
139
140 if (this.isPrimaryTypeProperty && "sv:value".equals(qName)) {
141 this.isPrimaryTypeValue = true;
142 }
143
144 super.startElement(uri, localName, qName, atts);
145 }
146 }