/*
* reserved comment block
* DO NOT REMOVE OR ALTER!
*/
/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 2000-2002 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 "Xerces" 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, International
* Business Machines, Inc., http://www.apache.org. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package com.sun.org.apache.xerces.internal.util;
import com.sun.org.apache.xerces.internal.impl.xs.util.SimpleLocator;
import com.sun.org.apache.xerces.internal.jaxp.validation.WrappedSAXException;
import com.sun.org.apache.xerces.internal.xni.QName;
import com.sun.org.apache.xerces.internal.xni.XMLAttributes;
import com.sun.org.apache.xerces.internal.xni.XMLDocumentHandler;
import com.sun.org.apache.xerces.internal.xni.XMLLocator;
import com.sun.org.apache.xerces.internal.xni.XMLString;
import com.sun.org.apache.xerces.internal.xni.parser.XMLDocumentSource;
import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;
/**
* Receves SAX {@link ContentHandler} events
* and produces the equivalent {@link XMLDocumentHandler} events.
*
* @author
* Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
*/
public class SAX2XNI implements ContentHandler, XMLDocumentSource {
public SAX2XNI( XMLDocumentHandler core ) {
this.fCore = core;
}
private XMLDocumentHandler fCore;
private final NamespaceSupport nsContext = new NamespaceSupport();
private final SymbolTable symbolTable = new SymbolTable();
public void setDocumentHandler(XMLDocumentHandler handler) {
fCore = handler;
}
public XMLDocumentHandler getDocumentHandler() {
return fCore;
}
//
//
// ContentHandler implementation
//
//
public void startDocument() throws SAXException {
try {
nsContext.reset();
XMLLocator xmlLocator;
if(locator==null)
// some SAX source doesn't provide a locator,
// in which case we assume no line information is available
// and use a dummy locator. With this, downstream components
// can always assume that they will get a non-null Locator.
xmlLocator=new SimpleLocator(null,null,-1,-1);
else
xmlLocator=new LocatorWrapper(locator);
fCore.startDocument(
xmlLocator,
null,
nsContext,
null);
} catch( WrappedSAXException e ) {
throw e.exception;
}
}
public void endDocument() throws SAXException {
try {
fCore.endDocument(null);
} catch( WrappedSAXException e ) {
throw e.exception;
}
}
public void startElement( String uri, String local, String qname, Attributes att ) throws SAXException {
try {
fCore.startElement(createQName(uri,local,qname),createAttributes(att),null);
} catch( WrappedSAXException e ) {
throw e.exception;
}
}
public void endElement( String uri, String local, String qname ) throws SAXException {
try {
fCore.endElement(createQName(uri,local,qname),null);
} catch( WrappedSAXException e ) {
throw e.exception;
}
}
public void characters( char[] buf, int offset, int len ) throws SAXException {
try {
fCore.characters(new XMLString(buf,offset,len),null);
} catch( WrappedSAXException e ) {
throw e.exception;
}
}
public void ignorableWhitespace( char[] buf, int offset, int len ) throws SAXException {
try {
fCore.ignorableWhitespace(new XMLString(buf,offset,len),null);
} catch( WrappedSAXException e ) {
throw e.exception;
}
}
public void startPrefixMapping( String prefix, String uri ) {
nsContext.pushContext();
nsContext.declarePrefix(prefix,uri);
}
public void endPrefixMapping( String prefix ) {
nsContext.popContext();
}
public void processingInstruction( String target, String data ) throws SAXException {
try {
fCore.processingInstruction(
symbolize(target),createXMLString(data),null);
} catch( WrappedSAXException e ) {
throw e.exception;
}
}
public void skippedEntity( String name ) {
}
private Locator locator;
public void setDocumentLocator( Locator _loc ) {
this.locator = _loc;
}
/** Creates a QName object. */
private QName createQName(String uri, String local, String raw) {
int idx = raw.indexOf(':');
if( local.length()==0 ) {
// if naemspace processing is turned off, local could be "".
// in that case, treat everything to be in the no namespace.
uri = "";
if(idx<0)
local = raw;
else
local = raw.substring(idx+1);
}
String prefix;
if (idx < 0)
prefix = null;
else
prefix = raw.substring(0, idx);
if (uri != null && uri.length() == 0)
uri = null; // XNI uses null whereas SAX uses the empty string
return new QName(symbolize(prefix), symbolize(local), symbolize(raw), symbolize(uri));
}
/** Symbolizes the specified string. */
private String symbolize(String s) {
if (s == null)
return null;
else
return symbolTable.addSymbol(s);
}
private XMLString createXMLString(String str) {
// with my patch
// return new XMLString(str);
// for now
return new XMLString(str.toCharArray(), 0, str.length());
}
/** only one instance of XMLAttributes is used. */
private final XMLAttributes xa = new XMLAttributesImpl();
/** Creates an XMLAttributes object. */
private XMLAttributes createAttributes(Attributes att) {
xa.removeAllAttributes();
int len = att.getLength();
for (int i = 0; i < len; i++)
xa.addAttribute(
createQName(att.getURI(i), att.getLocalName(i), att.getQName(i)),
att.getType(i),
att.getValue(i));
return xa;
}
}