/*
* $Id: DocumentBuilderImpl.java,v 1.5 2001/03/16 19:17:02 edwingo Exp $
*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2000 The Apache Software Foundation. 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 following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Crimson" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* 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 APACHE SOFTWARE FOUNDATION OR
* ITS 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 Apache Software Foundation and was
* originally based on software copyright (c) 1999, Sun Microsystems, Inc.,
* http://www.sun.com. For more information on the Apache Software
* Foundation, please see <http://www.apache.org/>.
*/
package org.apache.crimson.jaxp;
import java.io.IOException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.DOMImplementation;
import org.apache.crimson.parser.XMLReaderImpl;
import org.apache.crimson.tree.XmlDocument;
import org.apache.crimson.tree.XmlDocumentBuilder;
import org.apache.crimson.tree.XmlDocumentBuilderNS;
import org.apache.crimson.tree.DOMImplementationImpl;
import org.xml.sax.XMLReader;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.EntityResolver;
import org.xml.sax.ErrorHandler;
import org.xml.sax.helpers.DefaultHandler;
/**
* @author Rajiv Mordani
* @version $Revision: 1.5 $
*/
public class DocumentBuilderImpl extends DocumentBuilder {
private DocumentBuilderFactory dbf;
private EntityResolver er = null;
private ErrorHandler eh = null;
private XMLReader xmlReader = null;
private XmlDocumentBuilder builder = null;
private boolean namespaceAware = false;
private boolean validating = false;
DocumentBuilderImpl(DocumentBuilderFactory dbf)
throws ParserConfigurationException
{
this.dbf = dbf;
namespaceAware = dbf.isNamespaceAware();
xmlReader = new XMLReaderImpl();
try {
// Validation
validating = dbf.isValidating();
String validation = "http://xml.org/sax/features/validation";
xmlReader.setFeature(validation, validating);
// If validating, provide a default ErrorHandler that prints
// validation errors with a warning telling the user to set an
// ErrorHandler
if (validating) {
setErrorHandler(new DefaultValidationErrorHandler());
}
// SAX2 namespace-prefixes should be true for either builder
String nsPrefixes =
"http://xml.org/sax/features/namespace-prefixes";
xmlReader.setFeature(nsPrefixes, true);
// Set SAX2 namespaces feature appropriately
String namespaces = "http://xml.org/sax/features/namespaces";
xmlReader.setFeature(namespaces, namespaceAware);
// Use the appropriate DOM builder based on "namespaceAware"
if (namespaceAware) {
builder = new XmlDocumentBuilderNS();
} else {
builder = new XmlDocumentBuilder();
}
// Use builder as the ContentHandler
xmlReader.setContentHandler(builder);
// org.xml.sax.ext.LexicalHandler
String lexHandler = "http://xml.org/sax/properties/lexical-handler";
xmlReader.setProperty(lexHandler, builder);
// org.xml.sax.ext.DeclHandler
String declHandler =
"http://xml.org/sax/properties/declaration-handler";
xmlReader.setProperty(declHandler, builder);
// DTDHandler
xmlReader.setDTDHandler(builder);
} catch (SAXException e) {
// Handles both SAXNotSupportedException, SAXNotRecognizedException
throw new ParserConfigurationException(e.getMessage());
}
// Set various builder properties obtained from DocumentBuilderFactory
builder.setIgnoreWhitespace(dbf.isIgnoringElementContentWhitespace());
builder.setExpandEntityReferences(dbf.isExpandEntityReferences());
builder.setIgnoreComments(dbf.isIgnoringComments());
builder.setPutCDATAIntoText(dbf.isCoalescing());
}
public Document newDocument() {
return new XmlDocument();
}
public DOMImplementation getDOMImplementation() {
return DOMImplementationImpl.getDOMImplementation();
}
public Document parse(InputSource is) throws SAXException, IOException {
if (is == null) {
throw new IllegalArgumentException("InputSource cannot be null");
}
if (er != null) {
xmlReader.setEntityResolver(er);
}
if (eh != null) {
xmlReader.setErrorHandler(eh);
}
xmlReader.parse(is);
return builder.getDocument();
}
public boolean isNamespaceAware() {
return namespaceAware;
}
public boolean isValidating() {
return validating;
}
public void setEntityResolver(org.xml.sax.EntityResolver er) {
this.er = er;
}
public void setErrorHandler(org.xml.sax.ErrorHandler eh) {
// If app passes in a ErrorHandler of null, then ignore all errors
// and warnings
this.eh = (eh == null) ? new DefaultHandler() : eh;
}
}