content: /*
   * JBoss, Home of Professional Open Source
   * Copyright 2017 Red Hat Inc. and/or its affiliates and other contributors
   * as indicated by the @authors tag. All rights reserved.
   * See the copyright.txt in the distribution for a
   * full listing of individual contributors.
   *
   * 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 org.aesh.command.impl.operator;
  
  import java.io.BufferedWriter;
  import java.io.IOException;
  import org.aesh.readline.util.Parser;
  
  /**
   *
   * @author jdenise@redhat.com
   */
  public abstract class OutputDelegate {
  
      private BufferedWriter writer;
      private IOException exception;
  
      protected OutputDelegate() {
      }
  
      protected abstract BufferedWriter buildWriter() throws IOException;
  
      public void write(String msg) {
          try {
              msg = Parser.stripAwayAnsiCodes(msg);
              if (writer == null && exception == null) {
                  writer = buildWriter();
              }
              //if we have a writer, write
              if(writer != null) {
                  writer.append(msg);
                  writer.flush();
              }
          }
          catch (IOException e) {
              exception = e;
          }
      }
  
      public void close() throws IOException {
          //if(writer != null)
          //    writer.close();
          if(exception != null)
              throw exception;
      }
  
  }
  