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package com.sun.xml.ws.streaming;
import com.sun.xml.ws.api.streaming.XMLStreamReaderFactory;
import com.sun.xml.ws.util.FastInfosetUtil;
import com.sun.xml.ws.util.xml.XmlUtil;
import javax.xml.stream.XMLStreamReader;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.dom.DOMResult;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.sax.SAXSource;
import javax.xml.transform.stream.StreamSource;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.lang.reflect.Method;
import java.net.URL;
/**
* @author [email protected]
*/
public class SourceReaderFactory {
/**
* FI FastInfosetSource class.
*/
static Class fastInfosetSourceClass;
/**
* FI StAXDocumentSerializer.setEncoding() method via reflection.
*/
static Method fastInfosetSource_getInputStream;
static {
// Use reflection to avoid static dependency with FI jar
try {
fastInfosetSourceClass =
Class.forName("org.jvnet.fastinfoset.FastInfosetSource");
fastInfosetSource_getInputStream =
fastInfosetSourceClass.getMethod("getInputStream");
}
catch (Exception e) {
fastInfosetSourceClass = null;
}
}
public static XMLStreamReader createSourceReader(Source source, boolean rejectDTDs) {
return createSourceReader(source, rejectDTDs, null);
}
public static XMLStreamReader createSourceReader(Source source, boolean rejectDTDs, String charsetName) {
try {
if (source instanceof StreamSource) {
StreamSource streamSource = (StreamSource) source;
InputStream is = streamSource.getInputStream();
if (is != null) {
// Wrap input stream in Reader if charset is specified
if (charsetName != null) {
return XMLStreamReaderFactory.create(
source.getSystemId(), new InputStreamReader(is, charsetName), rejectDTDs);
}
else {
return XMLStreamReaderFactory.create(
source.getSystemId(), is, rejectDTDs);
}
}
else {
Reader reader = streamSource.getReader();
if (reader != null) {
return XMLStreamReaderFactory.create(
source.getSystemId(), reader, rejectDTDs);
}
else {
return XMLStreamReaderFactory.create(
source.getSystemId(), new URL(source.getSystemId()).openStream(), rejectDTDs );
}
}
}
else if (source.getClass() == fastInfosetSourceClass) {
return FastInfosetUtil.createFIStreamReader((InputStream)
fastInfosetSource_getInputStream.invoke(source));
}
else if (source instanceof DOMSource) {
DOMStreamReader dsr = new DOMStreamReader();
dsr.setCurrentNode(((DOMSource) source).getNode());
return dsr;
}
else if (source instanceof SAXSource) {
// TODO: need SAX to StAX adapter here -- Use transformer for now
Transformer tx = XmlUtil.newTransformer();
DOMResult domResult = new DOMResult();
tx.transform(source, domResult);
return createSourceReader(
new DOMSource(domResult.getNode()),
rejectDTDs);
}
else {
throw new XMLReaderException("sourceReader.invalidSource",
source.getClass().getName());
}
}
catch (Exception e) {
throw new XMLReaderException(e);
}
}
}