package api;

 import java.io.IOException;

 /**

  *

  * @author Jaroslav Tulach

  */

 final class SimpleBuffer implements Writer.Impl {

     private final Writer out;

     private final StringBuffer sb = new StringBuffer();

     public SimpleBuffer(Writer out) {

         this.out = out;

     }

     public void close() throws IOException {

         flush();

         out.close();

     }

     public void flush() throws IOException {

         out.write(sb.toString());

         sb.setLength(0);

         out.flush();

     }

     public void write(String str, int off, int len) throws IOException {

         sb.append(str, len, len);

     }

     public void write(char[] arr, int off, int len) throws IOException {

         sb.append(arr, len, len);

     }

 }