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package org.javaee7.movieplex7.json;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import javax.json.Json;
import javax.json.stream.JsonGenerator;
import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Provider;
import org.javaee7.movieplex7.entities.Movie;
/**
* @author Arun Gupta
*/
@Provider
@Produces(MediaType.APPLICATION_JSON)
public class MovieWriter implements MessageBodyWriter<Movie> {
@Override
public boolean isWriteable(Class<?> type, Type type1, Annotation[] antns, MediaType mt) {
return Movie.class.isAssignableFrom(type);
}
@Override
public long getSize(Movie t, Class<?> type, Type type1, Annotation[] antns, MediaType mt) {
// As of JAX-RS 2.0, the method has been deprecated and the
// value returned by the method is ignored by a JAX-RS runtime.
// All MessageBodyWriter implementations are advised to return -1 from
// the method.
return -1;
}
@Override
public void writeTo(Movie t, Class<?> type, Type type1, Annotation[] antns, MediaType mt, MultivaluedMap<String, Object> mm, OutputStream out) throws IOException, WebApplicationException {
JsonGenerator gen = Json.createGenerator(out);
gen.writeStartObject()
.write("id", t.getId())
.write("name", t.getName())
.write("actors", t.getActors())
.writeEnd();
gen.flush();
}
}