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package com.sun.xml.bind.v2.runtime.output;
import java.io.IOException;
import javax.xml.stream.XMLStreamException;
import com.sun.xml.bind.util.AttributesImpl;
import com.sun.xml.bind.v2.runtime.XMLSerializer;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.LocatorImpl;
/**
* {@link XmlOutput} implementation that writes to SAX {@link ContentHandler}.
*
* @author Kohsuke Kawaguchi
*/
public class SAXOutput extends XmlOutputAbstractImpl {
protected final ContentHandler out;
public SAXOutput(ContentHandler out) {
this.out = out;
out.setDocumentLocator(new LocatorImpl());
}
private String elementNsUri,elementLocalName,elementQName;
private char[] buf = new char[256];
private final AttributesImpl atts = new AttributesImpl();
// not called if we are generating fragments
@Override
public void startDocument(XMLSerializer serializer, boolean fragment, int[] nsUriIndex2prefixIndex, NamespaceContextImpl nsContext) throws SAXException, IOException, XMLStreamException {
super.startDocument(serializer, fragment,nsUriIndex2prefixIndex,nsContext);
if(!fragment)
out.startDocument();
}
public void endDocument(boolean fragment) throws SAXException, IOException, XMLStreamException {
if(!fragment)
out.endDocument();
super.endDocument(fragment);
}
public void beginStartTag(int prefix, String localName) {
elementNsUri = nsContext.getNamespaceURI(prefix);
elementLocalName = localName;
elementQName = getQName(prefix,localName);
atts.clear();
}
public void attribute(int prefix, String localName, String value) {
String qname;
String nsUri;
if(prefix==-1) {
nsUri = "";
qname = localName;
} else {
nsUri = nsContext.getNamespaceURI(prefix);
String p = nsContext.getPrefix(prefix);
if(p.length()==0)
// this is more likely a bug in the application code (NamespacePrefixMapper implementation)
// this only happens when it tries to assign "" prefix to a non-"" URI,
// which is by itself violation of namespace rec. But let's just be safe.
// See http://forums.java.net/jive/thread.jspa?messageID=212598#212598
qname = localName;
else
qname = p +':'+localName;
}
atts.addAttribute( nsUri, localName, qname, "CDATA", value );
}
public void endStartTag() throws SAXException {
NamespaceContextImpl.Element ns = nsContext.getCurrent();
if(ns!=null) {
int sz = ns.count();
for( int i=0; i<sz; i++ ) {
String p = ns.getPrefix(i);
String uri = ns.getNsUri(i);
if(uri.length()==0 && ns.getBase()==1)
continue; // no point in defining xmlns='' on the root
out.startPrefixMapping(p,uri);
}
}
out.startElement(elementNsUri,elementLocalName,elementQName,atts);
}
public void endTag(int prefix, String localName) throws SAXException {
out.endElement(
nsContext.getNamespaceURI(prefix),
localName,
getQName(prefix, localName)
);
NamespaceContextImpl.Element ns = nsContext.getCurrent();
if(ns!=null) {
int sz = ns.count();
for( int i=sz-1; i>=0; i-- ) {
String p = ns.getPrefix(i);
String uri = ns.getNsUri(i);
if(uri.length()==0 && ns.getBase()==1)
continue; // no point in definint xmlns='' on the root
out.endPrefixMapping(p);
}
}
}
private String getQName(int prefix, String localName) {
String qname;
String p = nsContext.getPrefix(prefix);
if(p.length()==0)
qname = localName;
else
qname = p+':'+localName;
return qname;
}
public void text(String value, boolean needsSP) throws IOException, SAXException, XMLStreamException {
int vlen = value.length();
if(buf.length<=vlen) {
buf = new char[Math.max(buf.length*2,vlen+1)];
}
if(needsSP) {
value.getChars(0,vlen,buf,1);
buf[0] = ' ';
} else {
value.getChars(0,vlen,buf,0);
}
out.characters(buf,0,vlen+(needsSP?1:0));
}
public void text(Pcdata value, boolean needsSP) throws IOException, SAXException, XMLStreamException {
int vlen = value.length();
if(buf.length<=vlen) {
buf = new char[Math.max(buf.length*2,vlen+1)];
}
if(needsSP) {
value.writeTo(buf,1);
buf[0] = ' ';
} else {
value.writeTo(buf,0);
}
out.characters(buf,0,vlen+(needsSP?1:0));
}
}