com.sun.jersey.atom.abdera.impl.provider.entity.FeedProvider Maven / Gradle / Ivy
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package com.sun.jersey.atom.abdera.impl.provider.entity;
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.Consumes;
import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import org.apache.abdera.Abdera;
import org.apache.abdera.model.Document;
import org.apache.abdera.model.Feed;
import org.apache.abdera.parser.Parser;
/**
* JAX-RS Provider for an Atom {@link Feed} Document instance.
*/
//@Provider
@Consumes({"application/atom+xml", "application/xml", "text/xml", "application/atom+json", "application/json"})
@Produces({"application/atom+xml", "application/xml", "text/xml", "application/atom+json", "application/json"})
public class FeedProvider extends AbstractCompletableReaderWriter {
public long getSize(Feed feed, Class type, Type genericType,
Annotation[] annotations, MediaType mediaType) {
return -1;
}
public boolean isReadable(Class type, Type genericType,
Annotation[] annotations, MediaType mediaType) {
return Feed.class.isAssignableFrom(type);
}
public boolean isWriteable(Class type, Type genericType,
Annotation[] annotations, MediaType mediaType) {
return Feed.class.isAssignableFrom(type);
}
public Feed readFrom(Class type, Type genericType,
Annotation[] annotations, MediaType mediaType,
MultivaluedMap headers,
InputStream stream) throws IOException, WebApplicationException {
Parser parser = null;
if (mediaType.equals(MediaType.APPLICATION_JSON_TYPE) || mediaType.getSubtype().endsWith("+json")) {
parser = Abdera.getInstance().getParserFactory().getParser("json");
} else {
parser = Abdera.getInstance().getParser();
}
Document document = parser.parse(stream);
return document.getRoot();
}
public void writeTo(Feed feed, Class type, Type genericType,
Annotation[] annotations, MediaType mediaType,
MultivaluedMap headers,
OutputStream stream) throws IOException, WebApplicationException {
if (mediaType.equals(MediaType.APPLICATION_JSON_TYPE) || mediaType.getSubtype().endsWith("+json")) {
feed.writeTo("json", stream);
} else {
feed.writeTo(stream);
}
}
}