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package org.glassfish.jersey.jettison.internal.entity;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.nio.charset.Charset;
import java.util.Collection;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ws.rs.Consumes;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.ext.Providers;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.glassfish.jersey.jaxb.internal.AbstractCollectionJaxbProvider;
import org.glassfish.jersey.jettison.JettisonConfig;
import org.glassfish.jersey.jettison.JettisonConfigured;
import org.glassfish.jersey.jettison.internal.Stax2JettisonFactory;
/**
* JSON message entity media type provider (reader & writer) for collection
* types.
*
* @author Jakub Podlesak (jakub.podlesak at oracle.com)
*/
public class JettisonListElementProvider extends AbstractCollectionJaxbProvider {
JettisonListElementProvider(Providers ps) {
super(ps);
}
JettisonListElementProvider(Providers ps, MediaType mt) {
super(ps, mt);
}
@Override
public boolean isReadable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
return super.isReadable(type, genericType, annotations, mediaType);
}
@Override
public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
return super.isWriteable(type, genericType, annotations, mediaType);
}
@Produces("application/json")
@Consumes("application/json")
public static final class App extends JettisonListElementProvider {
public App(@Context Providers ps) {
super(ps, MediaType.APPLICATION_JSON_TYPE);
}
}
@Produces("*/*")
@Consumes("*/*")
public static final class General extends JettisonListElementProvider {
public General(@Context Providers ps) {
super(ps);
}
@Override
protected boolean isSupported(MediaType m) {
return m.getSubtype().endsWith("+json");
}
}
@Override
public final void writeCollection(Class<?> elementType, Collection<?> t, MediaType mediaType, Charset c, Marshaller m,
OutputStream entityStream) throws JAXBException, IOException {
final OutputStreamWriter osw = new OutputStreamWriter(entityStream, c);
JettisonConfig origJsonConfig = JettisonConfig.DEFAULT;
if (m instanceof JettisonConfigured) {
origJsonConfig = ((JettisonConfigured) m).getJSONConfiguration();
}
final JettisonConfig unwrappingJsonConfig = JettisonConfig.createJSONConfiguration(origJsonConfig);
final XMLStreamWriter jxsw = Stax2JettisonFactory.createWriter(osw, unwrappingJsonConfig);
final String invisibleRootName = getRootElementName(elementType);
try {
jxsw.writeStartDocument();
jxsw.writeStartElement(invisibleRootName);
for (Object o : t) {
m.marshal(o, jxsw);
}
jxsw.writeEndElement();
jxsw.writeEndDocument();
jxsw.flush();
} catch (XMLStreamException ex) {
Logger.getLogger(JettisonListElementProvider.class.getName()).log(Level.SEVERE, null, ex);
throw new JAXBException(ex.getMessage(), ex);
}
}
@Override
protected final XMLStreamReader getXMLStreamReader(Class<?> elementType, MediaType mediaType, Unmarshaller u,
InputStream entityStream) throws XMLStreamException {
JettisonConfig c = JettisonConfig.DEFAULT;
final Charset charset = getCharset(mediaType);
if (u instanceof JettisonConfigured) {
c = ((JettisonConfigured) u).getJSONConfiguration();
}
return Stax2JettisonFactory.createReader(new InputStreamReader(entityStream, charset), c);
}
}