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*/
package org.glassfish.jersey.message.internal;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import javax.ws.rs.BadRequestException;
import javax.ws.rs.Consumes;
import javax.ws.rs.InternalServerErrorException;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.inject.Provider;
import javax.inject.Singleton;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParserFactory;
import javax.xml.transform.Source;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.sax.SAXSource;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import org.glassfish.hk2.api.Factory;
import org.w3c.dom.Document;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
/**
* Collection of {@link Source XML source} providers.
*
* @author Paul Sandoz
* @author Marek Potociar (marek.potociar at oracle.com)
*/
@Singleton
public final class SourceProvider {
/**
* Provider for un-marshalling {@link StreamSource} instances.
*/
@Produces({"application/xml", "text/xml", "*/*"})
@Consumes({"application/xml", "text/xml", "*/*"})
@Singleton
public static final class StreamSourceReader implements MessageBodyReader<StreamSource> {
@Override
public boolean isReadable(Class<?> t, Type gt, Annotation[] as, MediaType mediaType) {
return StreamSource.class == t || Source.class == t;
}
@Override
public StreamSource readFrom(
Class<StreamSource> t,
Type gt,
Annotation[] as,
MediaType mediaType,
MultivaluedMap<String, String> httpHeaders,
InputStream entityStream) throws IOException {
return new StreamSource(entityStream);
}
}
/**
* Provider for un-marshalling {@link SAXSource} instances.
*/
@Produces({"application/xml", "text/xml", "*/*"})
@Consumes({"application/xml", "text/xml", "*/*"})
@Singleton
public static final class SaxSourceReader implements MessageBodyReader<SAXSource> {
// Delay construction of factory
private final Provider<SAXParserFactory> spf;
public SaxSourceReader(@Context Provider<SAXParserFactory> spf) {
this.spf = spf;
}
@Override
public boolean isReadable(Class<?> t, Type gt, Annotation[] as, MediaType mediaType) {
return SAXSource.class == t;
}
@Override
public SAXSource readFrom(
Class<SAXSource> t,
Type gt,
Annotation[] as,
MediaType mediaType,
MultivaluedMap<String, String> httpHeaders,
InputStream entityStream) throws IOException {
try {
return new SAXSource(spf.get().newSAXParser().getXMLReader(),
new InputSource(entityStream));
} catch (SAXParseException ex) {
throw new BadRequestException(ex);
} catch (SAXException ex) {
throw new InternalServerErrorException(ex);
} catch (ParserConfigurationException ex) {
throw new InternalServerErrorException(ex);
}
}
}
/**
* Provider for marshalling/un-marshalling {@link DOMSource} instances.
*/
@Produces({"application/xml", "text/xml", "*/*"})
@Consumes({"application/xml", "text/xml", "*/*"})
@Singleton
public static final class DomSourceReader implements MessageBodyReader<DOMSource> {
private final Factory<DocumentBuilderFactory> dbf;
public DomSourceReader(@Context Factory<DocumentBuilderFactory> dbf) {
this.dbf = dbf;
}
@Override
public boolean isReadable(Class<?> t, Type gt, Annotation[] as, MediaType mediaType) {
return DOMSource.class == t;
}
@Override
public DOMSource readFrom(
Class<DOMSource> t,
Type gt,
Annotation[] as,
MediaType mediaType,
MultivaluedMap<String, String> httpHeaders,
InputStream entityStream) throws IOException {
try {
Document d = dbf.provide().newDocumentBuilder().parse(entityStream);
return new DOMSource(d);
} catch (SAXParseException ex) {
throw new BadRequestException(ex);
} catch (SAXException ex) {
throw new InternalServerErrorException(ex);
} catch (ParserConfigurationException ex) {
throw new InternalServerErrorException(ex);
}
}
}
/**
* Provider for marshaling {@link Source} instances.
*/
@Produces({"application/xml", "text/xml", "*/*"})
@Consumes({"application/xml", "text/xml", "*/*"})
@Singleton
public static final class SourceWriter implements MessageBodyWriter<Source> {
private final Factory<SAXParserFactory> saxParserFactory;
private final Factory<TransformerFactory> transformerFactory;
public SourceWriter(@Context Factory<SAXParserFactory> spf,
@Context Factory<TransformerFactory> tf) {
this.saxParserFactory = spf;
this.transformerFactory = tf;
}
@Override
public boolean isWriteable(Class<?> t, Type gt, Annotation[] as, MediaType mediaType) {
return Source.class.isAssignableFrom(t);
}
@Override
public long getSize(Source o, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
return -1;
}
@Override
public void writeTo(Source source, Class<?> t, Type gt, Annotation[] as, MediaType mediaType,
MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) throws IOException {
try {
if (source instanceof StreamSource) {
StreamSource stream = (StreamSource) source;
InputSource inputStream = new InputSource(stream.getInputStream());
inputStream.setCharacterStream(inputStream.getCharacterStream());
inputStream.setPublicId(stream.getPublicId());
inputStream.setSystemId(source.getSystemId());
source = new SAXSource(saxParserFactory.provide().newSAXParser().getXMLReader(), inputStream);
}
StreamResult sr = new StreamResult(entityStream);
transformerFactory.provide().newTransformer().transform(source, sr);
} catch (SAXException ex) {
throw new InternalServerErrorException(ex);
} catch (ParserConfigurationException ex) {
throw new InternalServerErrorException(ex);
} catch (TransformerException ex) {
throw new InternalServerErrorException(ex);
}
}
}
}