001: /*--
002:
003: $Id: CrimsonDOMAdapter.java,v 1.1 2005/04/27 09:32:42 wittek Exp $
004:
005: Copyright (C) 2000-2004 Jason Hunter & Brett McLaughlin.
006: All rights reserved.
007:
008: Redistribution and use in source and binary forms, with or without
009: modification, are permitted provided that the following conditions
010: are met:
011:
012: 1. Redistributions of source code must retain the above copyright
013: notice, this list of conditions, and the following disclaimer.
014:
015: 2. Redistributions in binary form must reproduce the above copyright
016: notice, this list of conditions, and the disclaimer that follows
017: these conditions in the documentation and/or other materials
018: provided with the distribution.
019:
020: 3. The name "JDOM" must not be used to endorse or promote products
021: derived from this software without prior written permission. For
022: written permission, please contact <request_AT_jdom_DOT_org>.
023:
024: 4. Products derived from this software may not be called "JDOM", nor
025: may "JDOM" appear in their name, without prior written permission
026: from the JDOM Project Management <request_AT_jdom_DOT_org>.
027:
028: In addition, we request (but do not require) that you include in the
029: end-user documentation provided with the redistribution and/or in the
030: software itself an acknowledgement equivalent to the following:
031: "This product includes software developed by the
032: JDOM Project (http://www.jdom.org/)."
033: Alternatively, the acknowledgment may be graphical using the logos
034: available at http://www.jdom.org/images/logos.
035:
036: THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
037: WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
038: OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
039: DISCLAIMED. IN NO EVENT SHALL THE JDOM AUTHORS OR THE PROJECT
040: CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
041: SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
042: LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
043: USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
044: ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
045: OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
046: OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
047: SUCH DAMAGE.
048:
049: This software consists of voluntary contributions made by many
050: individuals on behalf of the JDOM Project and was originally
051: created by Jason Hunter <jhunter_AT_jdom_DOT_org> and
052: Brett McLaughlin <brett_AT_jdom_DOT_org>. For more information
053: on the JDOM Project, please see <http://www.jdom.org/>.
054:
055: */
056:
057: package org.jdom.adapters;
058:
059: import java.io.*;
060: import java.lang.reflect.*;
061:
062: import org.jdom.*;
063: import org.w3c.dom.Document;
064: import org.xml.sax.*;
065:
066: /**
067: * An adapter for the Apache Crimson DOM parser.
068: *
069: * @version $Revision: 1.1 $, $Date: 2005/04/27 09:32:42 $
070: * @author Jason Hunter
071: */
072: public class CrimsonDOMAdapter extends AbstractDOMAdapter {
073:
074: private static final String CVS_ID = "@(#) $RCSfile: CrimsonDOMAdapter.java,v $ $Revision: 1.1 $ $Date: 2005/04/27 09:32:42 $ $Name: $";
075:
076: /**
077: * This creates a new <code>{@link Document}</code> from an
078: * existing <code>InputStream</code> by letting a DOM
079: * parser handle parsing using the supplied stream.
080: *
081: * @param in <code>InputStream</code> to parse.
082: * @param validate <code>boolean</code> to indicate if validation should occur.
083: * @return <code>Document</code> - instance ready for use.
084: * @throws IOException when I/O error occurs.
085: * @throws JDOMException when errors occur in parsing.
086: */
087: public Document getDocument(InputStream in, boolean validate)
088: throws IOException, JDOMException {
089:
090: try {
091: Class[] parameterTypes = new Class[2];
092: parameterTypes[0] = Class.forName("java.io.InputStream");
093: parameterTypes[1] = boolean.class;
094:
095: Object[] args = new Object[2];
096: args[0] = in;
097: args[1] = new Boolean(false);
098:
099: // Load the parser class and invoke the parse method
100: Class parserClass = Class
101: .forName("org.apache.crimson.tree.XmlDocument");
102: Method createXmlDocument = parserClass.getMethod(
103: "createXmlDocument", parameterTypes);
104: Document doc = (Document) createXmlDocument.invoke(null,
105: args);
106:
107: return doc;
108:
109: } catch (InvocationTargetException e) {
110: Throwable targetException = e.getTargetException();
111: if (targetException instanceof org.xml.sax.SAXParseException) {
112: SAXParseException parseException = (SAXParseException) targetException;
113: throw new JDOMException("Error on line "
114: + parseException.getLineNumber()
115: + " of XML document: "
116: + parseException.getMessage(), parseException);
117: } else if (targetException instanceof IOException) {
118: IOException ioException = (IOException) targetException;
119: throw ioException;
120: } else {
121: throw new JDOMException(targetException.getMessage(),
122: targetException);
123: }
124: } catch (Exception e) {
125: throw new JDOMException(e.getClass().getName() + ": "
126: + e.getMessage(), e);
127: }
128: }
129:
130: /**
131: * This creates an empty <code>Document</code> object based
132: * on a specific parser implementation.
133: *
134: * @return <code>Document</code> - created DOM Document.
135: * @throws JDOMException when errors occur.
136: */
137: public Document createDocument() throws JDOMException {
138: try {
139: return (Document) Class.forName(
140: "org.apache.crimson.tree.XmlDocument")
141: .newInstance();
142:
143: } catch (Exception e) {
144: throw new JDOMException(e.getClass().getName() + ": "
145: + e.getMessage() + " when creating document", e);
146: }
147: }
148: }
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