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package com.sun.jersey.json.impl.provider.entity;
import com.sun.jersey.api.json.JSONConfiguration;
import com.sun.jersey.core.spi.component.ComponentContext;
import com.sun.jersey.core.spi.component.ComponentInjector;
import com.sun.jersey.core.spi.component.ComponentScope;
import com.sun.jersey.core.util.FeaturesAndProperties;
import com.sun.jersey.spi.inject.Injectable;
import com.sun.jersey.spi.inject.InjectableProviderContext;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.List;
import javax.ws.rs.WebApplicationException;
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.ws.rs.ext.Providers;
import org.codehaus.jackson.jaxrs.JacksonJaxbJsonProvider;
import org.codehaus.jackson.jaxrs.JacksonJsonProvider;
/**
*
* @author Jakub.Podlesak@Sun.COM
*/
public class JacksonProviderProxy implements MessageBodyReader<Object>, MessageBodyWriter<Object> {
JacksonJsonProvider pojoProvider = new JacksonJsonProvider();
JacksonJaxbJsonProvider jaxbProvider = new JacksonJaxbJsonProvider();
boolean jacksonEntityProviderFeatureSet = false;
@Context
public void setFeaturesAndProperties(FeaturesAndProperties fp) {
jacksonEntityProviderFeatureSet = fp.getFeature(JSONConfiguration.FEATURE_POJO_MAPPING);
}
private static class ProvidersInjectableProviderContext implements InjectableProviderContext {
final Providers p;
final Injectable i;
private ProvidersInjectableProviderContext(final Providers p) {
this.p = p;
this.i = new Injectable() {
@Override
public Object getValue() {
return p;
}
};
}
@Override
public boolean isAnnotationRegistered(Class<? extends Annotation> ac, Class<?> cc) {
return ac == Context.class;
}
@Override
public boolean isInjectableProviderRegistered(Class<? extends Annotation> ac, Class<?> cc, ComponentScope s) {
return isAnnotationRegistered(ac, cc);
}
@Override
public <A extends Annotation, C> Injectable getInjectable(Class<? extends Annotation> ac, ComponentContext ic, A a, C c, ComponentScope s) {
return (c == Providers.class) ? i : null;
}
@Override
public <A extends Annotation, C> Injectable getInjectable(Class<? extends Annotation> ac, ComponentContext ic, A a, C c, List<ComponentScope> ls) {
return (c == Providers.class) ? i : null;
}
@Override
public <A extends Annotation, C> InjectableScopePair getInjectableWithScope(Class<? extends Annotation> ac, ComponentContext ic, A a, C c, List<ComponentScope> ls) {
return (c == Providers.class) ? new InjectableScopePair(i, ls.get(0)) : null;
}
}
@Context
public void setProviders(Providers p) {
new ComponentInjector<JacksonJsonProvider>(new ProvidersInjectableProviderContext(p), JacksonJsonProvider.class).inject(pojoProvider);
new ComponentInjector<JacksonJaxbJsonProvider>(new ProvidersInjectableProviderContext(p), JacksonJaxbJsonProvider.class).inject(jaxbProvider);
}
@Override
public boolean isReadable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
return jacksonEntityProviderFeatureSet &&
(jaxbProvider.isReadable(type, genericType, annotations, mediaType) || pojoProvider.isReadable(type, genericType, annotations, mediaType));
}
@Override
public Object readFrom(Class<Object> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, String> httpHeaders, InputStream entityStream) throws IOException, WebApplicationException {
return jaxbProvider.isReadable(type, genericType, annotations, mediaType) ?
jaxbProvider.readFrom(type, genericType, annotations, mediaType, httpHeaders, entityStream) :
pojoProvider.readFrom(type, genericType, annotations, mediaType, httpHeaders, entityStream);
}
@Override
public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
return jacksonEntityProviderFeatureSet &&
(jaxbProvider.isWriteable(type, genericType, annotations, mediaType) || pojoProvider.isWriteable(type, genericType, annotations, mediaType));
}
@Override
public long getSize(Object t, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
return jaxbProvider.isWriteable(type, genericType, annotations, mediaType) ?
jaxbProvider.getSize(t, type, genericType, annotations, mediaType) :
pojoProvider.getSize(t, type, genericType, annotations, mediaType);
}
@Override
public void writeTo(Object t, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) throws IOException, WebApplicationException {
if (jaxbProvider.isWriteable(type, genericType, annotations, mediaType)) {
jaxbProvider.writeTo(t, type, genericType, annotations, mediaType, httpHeaders, entityStream);
} else {
pojoProvider.writeTo(t, type, genericType, annotations, mediaType, httpHeaders, entityStream);
}
}
}