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package com.sun.jersey.json.impl.provider.entity;
import com.sun.jersey.api.json.JSONConfiguration;
import com.sun.jersey.api.json.JSONJAXBContext;
import com.sun.jersey.api.json.JSONMarshaller;
import com.sun.jersey.core.provider.jaxb.AbstractRootElementProvider;
import com.sun.jersey.core.util.FeaturesAndProperties;
import com.sun.jersey.json.impl.reader.JsonFormatException;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
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 java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.nio.charset.Charset;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Response.Status;
/**
*
* @author Paul.Sandoz@Sun.Com, Jakub.Podlesak@Sun.COM
*/
public class JSONRootElementProvider extends AbstractRootElementProvider {
boolean jacksonEntityProviderTakesPrecedence = false;
JSONRootElementProvider(Providers ps) {
super(ps);
}
JSONRootElementProvider(Providers ps, MediaType mt) {
super(ps, mt);
}
@Context @Override
public void setConfiguration(FeaturesAndProperties fp) {
super.setConfiguration(fp);
jacksonEntityProviderTakesPrecedence = fp.getFeature(JSONConfiguration.FEATURE_POJO_MAPPING);
}
@Override
public boolean isReadable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
return !jacksonEntityProviderTakesPrecedence && super.isReadable(type, genericType, annotations, mediaType);
}
@Override
public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
return !jacksonEntityProviderTakesPrecedence && super.isWriteable(type, genericType, annotations, mediaType);
}
@Produces("application/json")
@Consumes("application/json")
public static final class App extends JSONRootElementProvider {
public App(@Context Providers ps) {
super(ps, MediaType.APPLICATION_JSON_TYPE);
}
}
@Produces("*/*")
@Consumes("*/*")
public static final class General extends JSONRootElementProvider {
public General(@Context Providers ps) {
super(ps);
}
@Override
protected boolean isSupported(MediaType m) {
return !jacksonEntityProviderTakesPrecedence && m.getSubtype().endsWith("+json");
}
}
@Override
protected final Object readFrom(Class<Object> type, MediaType mediaType,
Unmarshaller u, InputStream entityStream)
throws JAXBException {
final Charset c = getCharset(mediaType);
try {
return JSONJAXBContext.getJSONUnmarshaller(u).
unmarshalFromJSON(new InputStreamReader(entityStream, c), type);
} catch (JsonFormatException e) {
throw new WebApplicationException(e, Status.BAD_REQUEST);
}
}
@Override
protected void writeTo(Object t, MediaType mediaType, Charset c,
Marshaller m, OutputStream entityStream)
throws JAXBException {
JSONMarshaller jsonMarshaller = JSONJAXBContext.getJSONMarshaller(m);
if(isFormattedOutput())
jsonMarshaller.setProperty(JSONMarshaller.FORMATTED, true);
jsonMarshaller.marshallToJSON(t, new OutputStreamWriter(entityStream, c));
}
}