TerminalServlet.java

/**
 * 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.hadoop.yarn.server.nodemanager.webapp;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.eclipse.jetty.servlet.DefaultServlet;

/**
 * TerminalServlet host the static html and javascript for
 * connecting to a text terminal over websocket.
 */
@WebServlet(urlPatterns="/terminal/*")
public class TerminalServlet extends DefaultServlet {

  /**
   * Servlet for hosting html page for xtermjs.
   */
  private static final long serialVersionUID = 1336699L;

  @Override
  protected void doGet(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
    if (request.getRequestURI().endsWith(".template")) {
      response.setHeader("Content-Type", "text/html;charset=utf-8");
    }
    super.doGet(request, response);
  }
}