code: // Licensed to the Software Freedom Conservancy (SFC) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The SFC 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.openqa.selenium.grid.web;
  
  import java.io.IOException;
  import java.io.Reader;
  import java.io.Writer;
  
  class TeeReader extends Reader {
  
    private final Reader source;
    private final Writer[] sinks;
  
    public TeeReader(Reader source, Writer... sinks) {
      this.source = source;
      this.sinks = sinks;
    }
  
    @Override
    public int read(char[] cbuf, int off, int len) throws IOException {
      int read = source.read(cbuf, off, len);
  
      if (read != -1) {
        for (Writer sink : sinks) {
          sink.write(cbuf, off, read);
        }
      }
      return read;
    }
  
    @Override
    public void close() throws IOException {
      source.close();
      for (Writer sink : sinks) {
        sink.close();
      }
    }
  
    @Override
    public boolean markSupported() {
      return false;
    }
  }
  