aoqi@0: /*
aefimov@658:  * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: package com.sun.xml.internal.bind.v2.runtime;
aoqi@0: 
aoqi@0: import com.sun.istack.internal.FinalArrayList;
aoqi@0: import com.sun.istack.internal.SAXException2;
aoqi@0: 
aoqi@0: import org.xml.sax.Attributes;
aoqi@0: import org.xml.sax.SAXException;
aoqi@0: import org.xml.sax.helpers.DefaultHandler;
aoqi@0: 
aefimov@658: import javax.xml.stream.XMLStreamException;
aefimov@658: import java.io.IOException;
aefimov@658: 
aoqi@0: /**
aoqi@0:  * Receives SAX2 events and send the equivalent events to
aoqi@0:  * {@link XMLSerializer}
aoqi@0:  *
aoqi@0:  * @author
aoqi@0:  *     Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
aoqi@0:  */
aoqi@0: final class ContentHandlerAdaptor extends DefaultHandler {
aoqi@0: 
aoqi@0:     /** Stores newly declared prefix-URI mapping. */
aoqi@0:     private final FinalArrayList<String> prefixMap = new FinalArrayList<String>();
aoqi@0: 
aoqi@0:     /** Events will be sent to this object. */
aoqi@0:     private final XMLSerializer serializer;
aoqi@0: 
aoqi@0:     private final StringBuffer text = new StringBuffer();
aoqi@0: 
aoqi@0: 
aoqi@0:     ContentHandlerAdaptor( XMLSerializer _serializer ) {
aoqi@0:         this.serializer = _serializer;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void startDocument() {
aoqi@0:         prefixMap.clear();
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void startPrefixMapping(String prefix, String uri) {
aoqi@0:         prefixMap.add(prefix);
aoqi@0:         prefixMap.add(uri);
aoqi@0:     }
aoqi@0: 
aoqi@0:     private boolean containsPrefixMapping(String prefix, String uri) {
aoqi@0:         for( int i=0; i<prefixMap.size(); i+=2 ) {
aoqi@0:             if(prefixMap.get(i).equals(prefix)
aefimov@658:                     && prefixMap.get(i+1).equals(uri))
aoqi@0:                 return true;
aoqi@0:         }
aoqi@0:         return false;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void startElement(String namespaceURI, String localName, String qName, Attributes atts)
aefimov@658:             throws SAXException {
aoqi@0:         try {
aoqi@0:             flushText();
aoqi@0: 
aoqi@0:             int len = atts.getLength();
aoqi@0: 
aoqi@0:             String p = getPrefix(qName);
aoqi@0: 
aoqi@0:             // is this prefix going to be declared on this element?
aoqi@0:             if(containsPrefixMapping(p,namespaceURI))
aoqi@0:                 serializer.startElementForce(namespaceURI,localName,p,null);
aoqi@0:             else
aoqi@0:                 serializer.startElement(namespaceURI,localName, p,null);
aoqi@0: 
aoqi@0:             // declare namespace events
aefimov@658:             for (int i = 0; i < prefixMap.size(); i += 2) {
aoqi@0:                 // forcibly set this binding, instead of using declareNsUri.
aoqi@0:                 // this guarantees that namespaces used in DOM will show up
aoqi@0:                 // as-is in the marshalled output (instead of reassigned to something else,
aoqi@0:                 // which may happen if you'd use declareNsUri.)
aoqi@0:                 serializer.getNamespaceContext().force(
aefimov@658:                         prefixMap.get(i + 1), prefixMap.get(i));
aoqi@0:             }
aoqi@0:             // make sure namespaces needed by attributes are bound
aoqi@0:             for( int i=0; i<len; i++ ) {
aoqi@0:                 String qname = atts.getQName(i);
aoqi@0:                 if(qname.startsWith("xmlns") || atts.getURI(i).length() == 0)
aoqi@0:                     continue;
aoqi@0:                 String prefix = getPrefix(qname);
aoqi@0: 
aoqi@0:                 serializer.getNamespaceContext().declareNamespace(
aefimov@658:                         atts.getURI(i), prefix, true );
aoqi@0:             }
aoqi@0: 
aoqi@0:             serializer.endNamespaceDecls(null);
aoqi@0:             // fire attribute events
aoqi@0:             for( int i=0; i<len; i++ ) {
aoqi@0:                 // be defensive.
aoqi@0:                 if(atts.getQName(i).startsWith("xmlns"))
aoqi@0:                     continue;
aoqi@0:                 serializer.attribute( atts.getURI(i), atts.getLocalName(i), atts.getValue(i));
aoqi@0:             }
aoqi@0:             prefixMap.clear();
aoqi@0:             serializer.endAttributes();
aoqi@0:         } catch (IOException e) {
aoqi@0:             throw new SAXException2(e);
aoqi@0:         } catch (XMLStreamException e) {
aoqi@0:             throw new SAXException2(e);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aefimov@658:     // make sure namespaces needed by attributes are bound
aoqi@0:     private String getPrefix(String qname) {
aoqi@0:         int idx = qname.indexOf(':');
aefimov@658:         String prefix = (idx == -1) ? "" : qname.substring(0, idx);
aoqi@0:         return prefix;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void endElement(String namespaceURI, String localName, String qName) throws SAXException {
aoqi@0:         try {
aoqi@0:             flushText();
aoqi@0:             serializer.endElement();
aoqi@0:         } catch (IOException e) {
aoqi@0:             throw new SAXException2(e);
aoqi@0:         } catch (XMLStreamException e) {
aoqi@0:             throw new SAXException2(e);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void flushText() throws SAXException, IOException, XMLStreamException {
aoqi@0:         if( text.length()!=0 ) {
aoqi@0:             serializer.text(text.toString(),null);
aoqi@0:             text.setLength(0);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void characters(char[] ch, int start, int length) {
aoqi@0:         text.append(ch,start,length);
aoqi@0:     }
aoqi@0: }