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A complete, Java-based solution for accessing, manipulating,
and outputting XML data
/*--
$Id: JAXPDOMAdapter.java,v 1.13 2007/11/10 05:28:59 jhunter Exp $
Copyright (C) 2000-2007 Jason Hunter & Brett McLaughlin.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions, and the disclaimer that follows
these conditions in the documentation and/or other materials
provided with the distribution.
3. The name "JDOM" must not be used to endorse or promote products
derived from this software without prior written permission. For
written permission, please contact .
4. Products derived from this software may not be called "JDOM", nor
may "JDOM" appear in their name, without prior written permission
from the JDOM Project Management .
In addition, we request (but do not require) that you include in the
end-user documentation provided with the redistribution and/or in the
software itself an acknowledgement equivalent to the following:
"This product includes software developed by the
JDOM Project (http://www.jdom.org/)."
Alternatively, the acknowledgment may be graphical using the logos
available at http://www.jdom.org/images/logos.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE JDOM AUTHORS OR THE PROJECT
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
This software consists of voluntary contributions made by many
individuals on behalf of the JDOM Project and was originally
created by Jason Hunter and
Brett McLaughlin . For more information
on the JDOM Project, please see {@link Document} from an
* existing InputStream by letting a JAXP
* parser handle parsing using the supplied stream.
*
* @param in InputStream to parse.
* @param validate boolean to indicate if validation
* should occur.
* @return Document - instance ready for use.
* @throws IOException when I/O error occurs.
* @throws JDOMException when errors occur in parsing.
*/
public Document getDocument(InputStream in, boolean validate)
throws IOException, JDOMException {
try {
// Try using JAXP...
// Note we need DOM Level 2 and thus JAXP 1.1.
Class.forName("javax.xml.transform.Transformer");
// Try JAXP 1.1 calls to build the document
Class factoryClass =
Class.forName("javax.xml.parsers.DocumentBuilderFactory");
// factory = DocumentBuilderFactory.newInstance();
Method newParserInstance =
factoryClass.getMethod("newInstance", null);
Object factory = newParserInstance.invoke(null, null);
// factory.setValidating(validate);
Method setValidating =
factoryClass.getMethod("setValidating",
new Class[]{boolean.class});
setValidating.invoke(factory,
new Object[]{new Boolean(validate)});
// factory.setNamespaceAware(true);
Method setNamespaceAware =
factoryClass.getMethod("setNamespaceAware",
new Class[]{boolean.class});
setNamespaceAware.invoke(factory,
new Object[]{Boolean.TRUE});
// jaxpParser = factory.newDocumentBuilder();
Method newDocBuilder =
factoryClass.getMethod("newDocumentBuilder", null);
Object jaxpParser = newDocBuilder.invoke(factory, null);
// jaxpParser.setErrorHandler(null);
Class parserClass = jaxpParser.getClass();
Method setErrorHandler =
parserClass.getMethod("setErrorHandler",
new Class[]{org.xml.sax.ErrorHandler.class});
setErrorHandler.invoke(jaxpParser,
new Object[]{new BuilderErrorHandler()});
// domDoc = jaxpParser.parse(in);
Method parse = parserClass.getMethod(
"parse", new Class[]{InputStream.class});
org.w3c.dom.Document domDoc = (org.w3c.dom.Document)
parse.invoke(jaxpParser, new Object[]{in});
return domDoc;
} catch (InvocationTargetException e) {
Throwable targetException = e.getTargetException();
if (targetException instanceof IOException) {
throw (IOException) targetException;
} else {
throw new JDOMException(targetException.getMessage(), targetException);
}
} catch (Exception e) {
throw new JDOMException("Reflection failed while parsing a document with JAXP", e);
}
// Allow all exceptions to pass through
}
/**
* This creates an empty Document object based
* on a specific parser implementation.
*
* @return Document - created DOM Document.
* @throws JDOMException when errors occur in parsing.
*/
public Document createDocument()
throws JDOMException {
try {
// We need DOM Level 2 and thus JAXP 1.1.
// If JAXP 1.0 is all that's available then we error out.
Class.forName("javax.xml.transform.Transformer");
// Try JAXP 1.1 calls to build the document
Class factoryClass =
Class.forName("javax.xml.parsers.DocumentBuilderFactory");
// factory = DocumentBuilderFactory.newInstance();
Method newParserInstance =
factoryClass.getMethod("newInstance", null);
Object factory = newParserInstance.invoke(null, null);
// jaxpParser = factory.newDocumentBuilder();
Method newDocBuilder =
factoryClass.getMethod("newDocumentBuilder", null);
Object jaxpParser = newDocBuilder.invoke(factory, null);
// domDoc = jaxpParser.newDocument();
Class parserClass = jaxpParser.getClass();
Method newDoc = parserClass.getMethod("newDocument", null);
org.w3c.dom.Document domDoc =
(org.w3c.dom.Document) newDoc.invoke(jaxpParser, null);
return domDoc;
} catch (Exception e) {
throw new JDOMException("Reflection failed while creating new JAXP document", e);
}
}
}
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