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.cassandra;
  
  import java.io.IOException;
  import java.io.OutputStream;
  import java.io.PrintStream;
  
  import ch.qos.logback.core.OutputStreamAppender;
  import ch.qos.logback.core.status.Status;
  import ch.qos.logback.core.status.WarnStatus;
  
  public class ConsoleAppender<E> extends OutputStreamAppender<E>
  {
      private String target = "System.out";
  
      public void setTarget(String target)
      {
          if(!(target.equals("System.out") || target.equals("System.err")))
          {
              Status status = new WarnStatus("[" + target + "] should be one of System.out or System.err", this);
              status.add(new WarnStatus("Using default target System.out", this));
              addStatus(status);
              return;
          }
          this.target = target;
      }
  
      public String getTarget()
      {
          return target;
      }
  
      @Override
      public void start()
      {
          final PrintStream targetStream = target.equals("System.out") ? LogbackStatusListener.originalOut : LogbackStatusListener.originalErr;
          setOutputStream(new OutputStream() {
              @Override
              public void write(int b)
              {
                  targetStream.write(b);
              }
  
              @Override
              public void write(byte[] b) throws IOException
              {
                  targetStream.write(b);
              }
  
              @Override
              public void write(byte[] b, int off, int len)
              {
                  targetStream.write(b, off, len);
              }
  
              @Override
              public void flush()
              {
                  targetStream.flush();
              }
          });
          super.start();
      }
  }
  