package org.jboss.resteasy.test.resource.basic.resource;

import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;

import jakarta.ws.rs.Produces;
import jakarta.ws.rs.WebApplicationException;
import jakarta.ws.rs.core.MediaType;
import jakarta.ws.rs.core.MultivaluedMap;
import jakarta.ws.rs.ext.MessageBodyWriter;
import jakarta.ws.rs.ext.Provider;

@Provider
@Produces("application/student")
public class GenericResourceStudentWriter implements MessageBodyWriter<GenericResourceStudent> {

    public long getSize(GenericResourceStudent t, Class<?> type, Type genericType, Annotation[] annotations,
            MediaType mediaType) {
        return t.getName().length();
    }

    public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        return true;
    }

    public void writeTo(GenericResourceStudent t, Class<?> type, Type genericType, Annotation[] annotations,
            MediaType mediaType, MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream)
            throws IOException, WebApplicationException {
        OutputStreamWriter writer = new OutputStreamWriter(entityStream);
        writer.write(t.getName());
        writer.flush();
    }
}
