@Override
	public String toString() {
		String s="\"";
		if(buf.length<15) {			
			s+=StringUtils.stripControlCharacters(new String(buf))+"\"";
		} else {
			s+=StringUtils.stripControlCharacters(new String(Arrays.copyOfRange(buf, 0, 12)))
					+"...\" ("+buf.length+" bytes)";
		}
		return s;
	}