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.guacamole.io;
  
  
  import java.io.IOException;
  import java.io.Writer;
  import java.net.SocketException;
  import java.net.SocketTimeoutException;
  import org.apache.guacamole.GuacamoleConnectionClosedException;
  import org.apache.guacamole.GuacamoleException;
  import org.apache.guacamole.GuacamoleServerException;
  import org.apache.guacamole.GuacamoleUpstreamTimeoutException;
  import org.apache.guacamole.protocol.GuacamoleInstruction;
  
  /**
   * A GuacamoleWriter which wraps a standard Java Writer, using that Writer as
   * the Guacamole instruction stream.
   *
   * @author Michael Jumper
   */
  public class WriterGuacamoleWriter implements GuacamoleWriter {
  
      /**
       * Wrapped Writer to be used for all output.
       */
      private Writer output;
  
      /**
       * Creates a new WriterGuacamoleWriter which will use the given Writer as
       * the Guacamole instruction stream.
       *
       * @param output The Writer to use as the Guacamole instruction stream.
       */
      public WriterGuacamoleWriter(Writer output) {
          this.output = output;
      }
  
      @Override
      public void write(char[] chunk, int off, int len) throws GuacamoleException {
          try {
              output.write(chunk, off, len);
              output.flush();
          }
          catch (SocketTimeoutException e) {
              throw new GuacamoleUpstreamTimeoutException("Connection to guacd timed out.", e);
          }
          catch (SocketException e) {
              throw new GuacamoleConnectionClosedException("Connection to guacd is closed.", e);
          }
          catch (IOException e) {
              throw new GuacamoleServerException(e);
          }
      }
  
      @Override
      public void write(char[] chunk) throws GuacamoleException {
          write(chunk, 0, chunk.length);
      }
  
      @Override
      public void writeInstruction(GuacamoleInstruction instruction) throws GuacamoleException {
          write(instruction.toString().toCharArray());
      }
  
  }
  