/*
 * Copyright 2015 Google Inc.
 *
 * 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 com.example.twilio;

import com.twilio.sdk.verbs.Say;
import com.twilio.sdk.verbs.TwiMLException;
import com.twilio.sdk.verbs.TwiMLResponse;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

// [START gae_flex_twilio_receive_call]
@SuppressWarnings("serial")
@WebServlet(name = "receivecall", value = "/call/receive")
public class ReceiveCallServlet extends HttpServlet {

  @Override
  public void service(HttpServletRequest req, HttpServletResponse resp) throws IOException,
      ServletException {
    TwiMLResponse twiml = new TwiMLResponse();
    Say say = new Say("Hello from Twilio!");
    try {
      twiml.append(say);
    } catch (TwiMLException e) {
      throw new ServletException("Twilio error", e);
    }

    resp.setContentType("application/xml");
    resp.getWriter().print(twiml.toXML());
  }
}
// [END gae_flex_twilio_receive_call]
