ohair@286: /*
aefimov@650:  * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
ohair@286:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ohair@286:  *
ohair@286:  * This code is free software; you can redistribute it and/or modify it
ohair@286:  * under the terms of the GNU General Public License version 2 only, as
ohair@286:  * published by the Free Software Foundation.  Oracle designates this
ohair@286:  * particular file as subject to the "Classpath" exception as provided
ohair@286:  * by Oracle in the LICENSE file that accompanied this code.
ohair@286:  *
ohair@286:  * This code is distributed in the hope that it will be useful, but WITHOUT
ohair@286:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ohair@286:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
ohair@286:  * version 2 for more details (a copy is included in the LICENSE file that
ohair@286:  * accompanied this code).
ohair@286:  *
ohair@286:  * You should have received a copy of the GNU General Public License version
ohair@286:  * 2 along with this work; if not, write to the Free Software Foundation,
ohair@286:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ohair@286:  *
ohair@286:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@286:  * or visit www.oracle.com if you need additional information or have any
ohair@286:  * questions.
ohair@286:  */
ohair@286: 
ohair@286: package com.sun.xml.internal.bind.v2.runtime.unmarshaller;
ohair@286: 
mkos@397: import com.sun.xml.internal.bind.Util;
ohair@286: import javax.xml.bind.JAXBException;
ohair@286: import javax.xml.bind.UnmarshallerHandler;
ohair@286: 
ohair@286: import com.sun.xml.internal.bind.WhiteSpaceProcessor;
ohair@286: import com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl;
mkos@397: import java.util.logging.Level;
mkos@397: import java.util.logging.Logger;
ohair@286: 
ohair@286: import org.xml.sax.Attributes;
ohair@286: import org.xml.sax.Locator;
ohair@286: import org.xml.sax.SAXException;
ohair@286: 
ohair@286: /**
ohair@286:  * Receives SAX events and convert them to our internal events.
ohair@286:  *
ohair@286:  * @author Kohsuke Kawaguchi
ohair@286:  */
ohair@286: public final class SAXConnector implements UnmarshallerHandler {
ohair@286: 
ohair@286:     private LocatorEx loc;
ohair@286: 
mkos@397:     private static final Logger logger = Util.getClassLogger();
mkos@397: 
ohair@286:     /**
ohair@286:      * SAX may fire consecutive characters event, but we don't allow it.
ohair@286:      * so use this buffer to perform buffering.
ohair@286:      */
ohair@286:     private final StringBuilder buffer = new StringBuilder();
ohair@286: 
ohair@286:     private final XmlVisitor next;
ohair@286:     private final UnmarshallingContext context;
ohair@286:     private final XmlVisitor.TextPredictor predictor;
ohair@286: 
ohair@286:     private static final class TagNameImpl extends TagName {
ohair@286:         String qname;
mkos@397:         @Override
ohair@286:         public String getQname() {
ohair@286:             return qname;
ohair@286:         }
ohair@286:     }
ohair@286: 
ohair@286:     private final TagNameImpl tagName = new TagNameImpl();
ohair@286: 
ohair@286:     /**
ohair@286:      * @param externalLocator
ohair@286:      *      If the caller is producing SAX events from sources other than Unicode and angle brackets,
ohair@286:      *      the caller can override the default SAX {@link Locator} object by this object
ohair@286:      *      to provide better location information.
ohair@286:      */
ohair@286:     public SAXConnector(XmlVisitor next, LocatorEx externalLocator ) {
ohair@286:         this.next = next;
ohair@286:         this.context = next.getContext();
ohair@286:         this.predictor = next.getPredictor();
ohair@286:         this.loc = externalLocator;
ohair@286:     }
ohair@286: 
mkos@397:     @Override
ohair@286:     public Object getResult() throws JAXBException, IllegalStateException {
ohair@286:         return context.getResult();
ohair@286:     }
ohair@286: 
ohair@286:     public UnmarshallingContext getContext() {
ohair@286:         return context;
ohair@286:     }
ohair@286: 
mkos@397:     @Override
ohair@286:     public void setDocumentLocator(final Locator locator) {
ohair@286:         if(loc!=null)
ohair@286:             return; // we already have an external locator. ignore.
ohair@286: 
ohair@286:         this.loc = new LocatorExWrapper(locator);
ohair@286:     }
ohair@286: 
mkos@397:     @Override
ohair@286:     public void startDocument() throws SAXException {
mkos@397:         if (logger.isLoggable(Level.FINER)) {
mkos@397:             logger.log(Level.FINER, "SAXConnector.startDocument");
mkos@397:         }
ohair@286:         next.startDocument(loc,null);
ohair@286:     }
ohair@286: 
mkos@397:     @Override
ohair@286:     public void endDocument() throws SAXException {
mkos@397:         if (logger.isLoggable(Level.FINER)) {
mkos@397:             logger.log(Level.FINER, "SAXConnector.endDocument");
mkos@397:         }
ohair@286:         next.endDocument();
ohair@286:     }
ohair@286: 
mkos@397:     @Override
ohair@286:     public void startPrefixMapping(String prefix, String uri) throws SAXException {
mkos@397:         if (logger.isLoggable(Level.FINER)) {
mkos@397:             logger.log(Level.FINER, "SAXConnector.startPrefixMapping: {0}:{1}", new Object[]{prefix, uri});
mkos@397:         }
ohair@286:         next.startPrefixMapping(prefix,uri);
ohair@286:     }
ohair@286: 
mkos@397:     @Override
ohair@286:     public void endPrefixMapping(String prefix) throws SAXException {
mkos@397:         if (logger.isLoggable(Level.FINER)) {
mkos@397:             logger.log(Level.FINER, "SAXConnector.endPrefixMapping: {0}", new Object[]{prefix});
mkos@397:         }
ohair@286:         next.endPrefixMapping(prefix);
ohair@286:     }
ohair@286: 
mkos@397:     @Override
ohair@286:     public void startElement(String uri, String local, String qname, Attributes atts) throws SAXException {
mkos@397:         if (logger.isLoggable(Level.FINER)) {
mkos@397:             logger.log(Level.FINER, "SAXConnector.startElement: {0}:{1}:{2}, attrs: {3}", new Object[]{uri, local, qname, atts});
mkos@397:         }
ohair@286:         // work gracefully with misconfigured parsers that don't support namespaces
ohair@286:         if( uri==null || uri.length()==0 )
ohair@286:             uri="";
ohair@286:         if( local==null || local.length()==0 )
ohair@286:             local=qname;
ohair@286:         if( qname==null || qname.length()==0 )
ohair@286:             qname=local;
ohair@286: 
aefimov@650:         processText(!context.getCurrentState().isMixed());
ohair@286: 
ohair@286:         tagName.uri = uri;
ohair@286:         tagName.local = local;
ohair@286:         tagName.qname = qname;
ohair@286:         tagName.atts = atts;
ohair@286:         next.startElement(tagName);
ohair@286:     }
ohair@286: 
mkos@397:     @Override
ohair@286:     public void endElement(String uri, String localName, String qName) throws SAXException {
mkos@397:         if (logger.isLoggable(Level.FINER)) {
mkos@397:             logger.log(Level.FINER, "SAXConnector.startElement: {0}:{1}:{2}", new Object[]{uri, localName, qName});
mkos@397:         }
ohair@286:         processText(false);
ohair@286:         tagName.uri = uri;
ohair@286:         tagName.local = localName;
ohair@286:         tagName.qname = qName;
ohair@286:         next.endElement(tagName);
ohair@286:     }
ohair@286: 
ohair@286: 
mkos@397:     @Override
ohair@286:     public final void characters( char[] buf, int start, int len ) {
mkos@397:         if (logger.isLoggable(Level.FINEST)) {
mkos@397:             logger.log(Level.FINEST, "SAXConnector.characters: {0}", buf);
mkos@397:         }
ohair@286:         if( predictor.expectText() )
ohair@286:             buffer.append(buf,start,len);
ohair@286:     }
ohair@286: 
mkos@397:     @Override
ohair@286:     public final void ignorableWhitespace( char[] buf, int start, int len ) {
mkos@397:         if (logger.isLoggable(Level.FINEST)) {
mkos@397:             logger.log(Level.FINEST, "SAXConnector.characters{0}", buf);
mkos@397:         }
ohair@286:         characters(buf,start,len);
ohair@286:     }
ohair@286: 
mkos@397:     @Override
ohair@286:     public void processingInstruction(String target, String data) {
ohair@286:         // nop
ohair@286:     }
ohair@286: 
mkos@397:     @Override
ohair@286:     public void skippedEntity(String name) {
ohair@286:         // nop
ohair@286:     }
ohair@286: 
ohair@286:     private void processText( boolean ignorable ) throws SAXException {
aefimov@650:         if (predictor.expectText() && (!ignorable || !WhiteSpaceProcessor.isWhiteSpace(buffer)))
ohair@286:             next.text(buffer);
ohair@286:         buffer.setLength(0);
ohair@286:     }
ohair@286: 
ohair@286: }