content: /*
   * 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.asterix.test.server;
  
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.IOException;
  import java.io.OutputStream;
  import java.net.ServerSocket;
  import java.net.Socket;
  
  public class FileTestServer implements ITestServer {
      protected String[] paths;
      protected final int port;
      protected ServerSocket serverSocket;
      protected Thread listenerThread;
  
      public FileTestServer(int port) {
          this.port = port;
      }
  
      @Override
      public void configure(String[] args) {
          this.paths = args;
      }
  
      @Override
      public void start() throws IOException {
          serverSocket = new ServerSocket(port);
          listenerThread = new Thread(new Runnable() {
              @Override
              public void run() {
                  while (!serverSocket.isClosed()) {
                      try (Socket socket = serverSocket.accept(); OutputStream os = socket.getOutputStream()) {
                          byte[] chunk = new byte[1024];
                          for (String path : paths) {
                              try (FileInputStream fin = new FileInputStream(new File(path))) {
                                  int read = fin.read(chunk);
                                  while (read > 0) {
                                      os.write(chunk, 0, read);
                                      read = fin.read(chunk);
                                  }
                              }
                          }
                      } catch (IOException e) {
                          // Do nothing. This means the socket was closed for some reason.
                          // There is nothing to do here except try to close the socket and see if the
                          // server is still listening!
                          // This also could be due to the close() call
                      }
                  }
  
              }
          });
          listenerThread.start();
      }
  
      @Override
      public void stop() throws IOException, InterruptedException {
          if (serverSocket.isBound()) {
              serverSocket.close();
              if (listenerThread.isAlive()) {
                  listenerThread.join();
              }
          }
      }
  }
  