package cactusServer.utils;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;

import javax.validation.constraints.Null;
import javax.ws.rs.Consumes;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.Provider;

import net.arnx.jsonic.JSON;
import net.arnx.jsonic.JSONException;

/**
 * 多分使用しなくなると思う
 * @author student
 *
 */
//@Provider
//@Consumes(MediaType.APPLICATION_JSON)
public class JSONConsumer implements MessageBodyReader<Object> {
	@Override
	public boolean isReadable(Class<?> type, java.lang.reflect.Type genericType,
			java.lang.annotation.Annotation[] annotations, MediaType mediaType) {
		// return true;
		return mediaType.isCompatible(MediaType.APPLICATION_JSON_TYPE);
	}

	@Override
	public Object readFrom(Class<Object> type, Type genericType, Annotation[] annotations, MediaType mediaType,
			MultivaluedMap<String, String> httpHeaders, InputStream entityStream)
			throws IOException, WebApplicationException {
		try {
			// return JSON.decode(entityStream,genericType);
			return JSON.decode(entityStream, type);
		} catch (JSONException e) {
			return null;
		}
	}
}