Objektorientierte Entwurfsmuster - Architektur und Entwurfsmuster der Softwaretechnik - page 112

byte[] buffer = new byte[1024]; // Puffer für 1024 Bytes
int counter = 0;
OutputStream out; // dekoriertes Objekt
public BufferedOutputStream (OutputStream s)
{
out = s;
}
public void close() throws IOException
{
if (counter > 0) // falls Puffer nicht leer: leeren
{
out.write (buffer, 0, counter);
counter = 0;
}
out.close(); //eigentliche Operation delegieren
}
public void flush() throws IOException
{
if (counter > 0) // falls Puffer nicht leer: leeren
{
out.write (buffer, 0, counter);
counter = 0;
}
out.flush(); //eigentliche Operation delegieren
}
public void write (int i) throws IOException
{
buffer[counter] = (byte)i; // in Puffer legen
counter ++;
if (counter == 1024) // falls Puffer voll
{
out.write (buffer); // Puffer in Stream schreiben
counter = 0;
}
}
public void write (byte[] b) throws IOException
{
int i;
for (i = 0; i<= b.length; i++)
{
buffer[counter] = b[i]; // in Puffer legen
counter ++;
if (counter == 1024) // falls Puffer voll
{
out.write (buffer); // Puffer in Stream schreiben
counter = 0;
}
}
}