/*
 * 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.reef.webserver;

import org.apache.reef.tang.annotations.DefaultImplementation;

/**
 * HttpServer interface.
 */
@DefaultImplementation(NoOpHttpServerImpl.class)
public interface HttpServer {

  /**
   * start the server.
   *
   * @throws Exception
   */
  void start() throws Exception;

  /**
   * stop the server.
   *
   * @throws Exception
   */
  void stop() throws Exception;

  /**
   * get port number of the server.
   *
   * @return
   */
  int getPort();

  /**
   * Add a httpHandler to the server.
   *
   * @param httpHandler
   */
  void addHttpHandler(final HttpHandler httpHandler);
}