/*******************************************************************************
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *  
 *   http://www.apache.org/licenses/LICENSE-2.0
 *  
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 *  
 *******************************************************************************/
package org.apache.wink.example.osgi;

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

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.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Property;
import org.apache.felix.scr.annotations.Service;

/**
 * an example root resource, registered under different paths both as
 * sling.ws.rs as well as javax.ws.rs component.
 *
 */
@Component
@Service(Object.class)
@Property(name="javax.ws.rs", boolValue=true)
@Produces("text/html")
@Provider
public class GreetingWriter implements MessageBodyWriter<Greeting>{
	

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

	public long getSize(Greeting t, Class<?> type, Type genericType,
			Annotation[] annotations, MediaType mediaType) {
		return -1;
	}

	public void writeTo(Greeting t, Class<?> type, Type genericType,
			Annotation[] annotations, MediaType mediaType,
			MultivaluedMap<String, Object> httpHeaders,
			OutputStream entityStream) throws IOException,
			WebApplicationException {
		PrintWriter out = new PrintWriter(entityStream);
		out.println("<html>");
		out.println("<body>");
		out.println("<h1>");
		out.print(t.getVerb());
		out.print(", ");
		out.print(t.getName() != null? t.getName() : "unknown");
		out.print(".");
		out.println("</h1>");
		out.println("</body>");
		out.println("</html>");
		out.flush();
	}

}