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/*
 * 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.jboss.ws.common.utils;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.util.Locale;

/**
 * Print stream singleton that does nothing
 *
 * @author [email protected]
 *
 * @since Oct 12, 2007
 */
public final class NullPrintStream extends PrintStream
{
   
   private static final PrintStream instance = new NullPrintStream();
   
   public static PrintStream getInstance()
   {
      return instance;
   }
   
   private NullPrintStream()
   {
      super(new ByteArrayOutputStream());
   }

   @Override
   public PrintStream append(char c)
   {
      return this;
   }

   @Override
   public PrintStream append(CharSequence csq, int start, int end)
   {
      return this;
   }

   @Override
   public PrintStream append(CharSequence csq)
   {
      return this;
   }

   @Override
   public boolean checkError()
   {
      return false;
   }

   @Override
   public void close()
   {
   }

   @Override
   public void flush()
   {
   }

   @Override
   public PrintStream format(Locale l, String format, Object... args)
   {
      return this;
   }

   @Override
   public PrintStream format(String format, Object... args)
   {
      return this;
   }

   @Override
   public void print(boolean b)
   {
   }

   @Override
   public void print(char c)
   {
   }

   @Override
   public void print(char[] s)
   {
   }

   @Override
   public void print(double d)
   {
   }

   @Override
   public void print(float f)
   {
   }

   @Override
   public void print(int i)
   {
   }

   @Override
   public void print(long l)
   {
   }

   @Override
   public void print(Object obj)
   {
   }

   @Override
   public void print(String s)
   {
   }

   @Override
   public PrintStream printf(Locale l, String format, Object... args)
   {
      return this;
   }

   @Override
   public PrintStream printf(String format, Object... args)
   {
      return this;
   }

   @Override
   public void println()
   {
   }

   @Override
   public void println(boolean x)
   {
   }

   @Override
   public void println(char x)
   {
   }

   @Override
   public void println(char[] x)
   {
   }

   @Override
   public void println(double x)
   {
   }

   @Override
   public void println(float x)
   {
   }

   @Override
   public void println(int x)
   {
   }

   @Override
   public void println(long x)
   {
   }

   @Override
   public void println(Object x)
   {
   }

   @Override
   public void println(String x)
   {
   }

   @Override
   protected void setError()
   {
   }

   @Override
   public void write(byte[] buf, int off, int len)
   {
   }

   @Override
   public void write(int b)
   {
   }

   @Override
   public void write(byte[] b) throws IOException
   {
   }

}