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 org.xml.sax.Attributes;
37 import org.xml.sax.SAXException;
38 import org.xml.sax.XMLReader;
39 import org.xml.sax.helpers.AttributesImpl;
40 import org.xml.sax.helpers.XMLFilterImpl;
41
42 import java.util.ArrayList;
43 import java.util.Iterator;
44 import java.util.List;
45
46
47 /**
48 * A filter that removed "mix:versionable" from jcr:mixinTypes while importing
49 * xml files. Can be used to automatically adapt version 3.5 xml files to
50 * magnolia 3.6 during bootstrap or activation. You need
51 * to modify DataTransporter in order to disable it (see the comments in
52 * DataTransporter.importXmlStream())
53 * @author fgiust
54 * @version $Revision: 33524 $ ($Author: gjoseph $)
55 */
56 public class RemoveMixversionableFilter extends XMLFilterImpl {
57
58 private boolean inMixinTypes = false;
59
60 private boolean inValue = false;
61
62 private List values = new ArrayList();
63
64 private String value;
65
66 private Attributes atts;
67
68 /**
69 * Instantiates a new MetadataUuidFilter filter.
70 * @param parent wrapped XMLReader
71 */
72 public RemoveMixversionableFilter(XMLReader parent) {
73 super(parent);
74 }
75
76 public void startElement(String uri, String localName, String name, Attributes atts) throws SAXException {
77 if (name.equals("sv:property") && atts.getValue("sv:name").equals("jcr:mixinTypes")) {
78 this.atts = new AttributesImpl(atts);
79 inMixinTypes = true;
80 values.clear();
81 }
82 else if (inMixinTypes && name.equals("sv:value")) {
83 inValue = true;
84 }
85 else {
86 super.startElement(uri, localName, name, atts);
87 }
88 }
89
90 public void characters(char[] ch, int start, int length) throws SAXException {
91 if (inValue) {
92 if(value == null){
93 value = new String(ch, start, length);
94 }
95 else{
96 value += new String(ch, start, length);
97 }
98 }
99 else {
100 super.characters(ch, start, length);
101 }
102 }
103
104 public void endElement(String uri, String localName, String name) throws SAXException {
105 if (inValue && name.equals("sv:value")) {
106 inValue = false;
107 if (!value.equals("mix:versionable")) {
108 values.add(value);
109 }
110 value = null;
111 }
112 else if (inMixinTypes && name.equals("sv:property")) {
113 inMixinTypes = false;
114 // process the buffer
115 if (values.size() > 0) {
116 super.startElement(uri, "property", "sv:property", this.atts);
117 for (Iterator iterator = values.iterator(); iterator.hasNext();) {
118 String value = (String) iterator.next();
119 super.startElement(uri, "value", "sv:value", new AttributesImpl());
120 super.characters(value.toCharArray(), 0, value.length());
121 super.endElement(uri, "value", "sv:value");
122 }
123 super.endElement(uri, "property", "sv:property");
124 }
125 }
126 else {
127 super.endElement(uri, localName, name);
128 }
129 }
130 }