spinjar.com.sun.xml.bind.v2.runtime.unmarshaller.SAXConnector Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2011 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.xml.bind.v2.runtime.unmarshaller;
import javax.xml.bind.JAXBException;
import javax.xml.bind.UnmarshallerHandler;
import com.sun.xml.bind.WhiteSpaceProcessor;
import com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl;
import org.xml.sax.Attributes;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;
/**
* Receives SAX events and convert them to our internal events.
*
* @author Kohsuke Kawaguchi
*/
public final class SAXConnector implements UnmarshallerHandler {
private LocatorEx loc;
/**
* SAX may fire consecutive characters event, but we don't allow it.
* so use this buffer to perform buffering.
*/
private final StringBuilder buffer = new StringBuilder();
private final XmlVisitor next;
private final UnmarshallingContext context;
private final XmlVisitor.TextPredictor predictor;
private static final class TagNameImpl extends TagName {
String qname;
public String getQname() {
return qname;
}
}
private final TagNameImpl tagName = new TagNameImpl();
/**
* @param externalLocator
* If the caller is producing SAX events from sources other than Unicode and angle brackets,
* the caller can override the default SAX {@link Locator} object by this object
* to provide better location information.
*/
public SAXConnector(XmlVisitor next, LocatorEx externalLocator ) {
this.next = next;
this.context = next.getContext();
this.predictor = next.getPredictor();
this.loc = externalLocator;
}
public Object getResult() throws JAXBException, IllegalStateException {
return context.getResult();
}
public UnmarshallingContext getContext() {
return context;
}
public void setDocumentLocator(final Locator locator) {
if(loc!=null)
return; // we already have an external locator. ignore.
this.loc = new LocatorExWrapper(locator);
}
public void startDocument() throws SAXException {
next.startDocument(loc,null);
}
public void endDocument() throws SAXException {
next.endDocument();
}
public void startPrefixMapping(String prefix, String uri) throws SAXException {
next.startPrefixMapping(prefix,uri);
}
public void endPrefixMapping(String prefix) throws SAXException {
next.endPrefixMapping(prefix);
}
public void startElement(String uri, String local, String qname, Attributes atts) throws SAXException {
// work gracefully with misconfigured parsers that don't support namespaces
if( uri==null || uri.length()==0 )
uri="";
if( local==null || local.length()==0 )
local=qname;
if( qname==null || qname.length()==0 )
qname=local;
boolean ignorable = true;
StructureLoader sl;
// not null only if element content is processed (StructureLoader is used)
// ugly
if((sl = this.context.getStructureLoader()) != null) {
ignorable = ((ClassBeanInfoImpl)sl.getBeanInfo()).hasElementOnlyContentModel();
}
processText(ignorable);
tagName.uri = uri;
tagName.local = local;
tagName.qname = qname;
tagName.atts = atts;
next.startElement(tagName);
}
public void endElement(String uri, String localName, String qName) throws SAXException {
processText(false);
tagName.uri = uri;
tagName.local = localName;
tagName.qname = qName;
next.endElement(tagName);
}
public final void characters( char[] buf, int start, int len ) {
if( predictor.expectText() )
buffer.append(buf,start,len);
}
public final void ignorableWhitespace( char[] buf, int start, int len ) {
characters(buf,start,len);
}
public void processingInstruction(String target, String data) {
// nop
}
public void skippedEntity(String name) {
// nop
}
private void processText( boolean ignorable ) throws SAXException {
if( predictor.expectText() && (!ignorable || !WhiteSpaceProcessor.isWhiteSpace(buffer)))
next.text(buffer);
buffer.setLength(0);
}
}