TakePictureServlet.java

/*
 * Copyright IBM Corp. 2015
 *
 * Licensed 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 net.bluemix.droneselfie;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.MultipartConfig;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.paho.client.mqttv3.MqttClient;
import org.eclipse.paho.client.mqttv3.MqttConnectOptions;
import org.eclipse.paho.client.mqttv3.MqttException;
import org.eclipse.paho.client.mqttv3.MqttMessage;
import org.eclipse.paho.client.mqttv3.persist.MemoryPersistence;

@WebServlet("/takepic")
@MultipartConfig(maxFileSize = 16177215)
public class TakePictureServlet extends HttpServlet {

	private static final long serialVersionUID = -1623656344694499109L;

	public TakePictureServlet() {
	}

	protected void doPost(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
	}

	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {

		String id = request.getParameter("id");
		if (id == null)
			return;
		if (id.equals(""))
			return;

		StringBuffer requestURL = request.getRequestURL();
		String requestURLString = requestURL.toString();

		requestURLString = requestURLString + "?id=" + id;
		requestURLString = requestURLString.replace("takepic", "uploadpic");

		try {
			MQTTUtilities.sendMQTTMessage(MQTTUtilities.COMMAND_TAKE_PICTURE, requestURLString);
			response.setStatus(response.SC_OK);
		} catch (MqttException e) {
			e.printStackTrace();
			response.sendError(HttpServletResponse.SC_BAD_REQUEST);
		}
	}
}