Save XML data source

	protected void saveDataSourceFile()
			throws Exception {
		// DNS setting
		// java.security.Security.setProperty("networkaddress.cache.negative.ttl",
		// "0");
		// java.security.Security.setProperty("networkaddress.cache.ttl", "0");
		// System.setProperty("sun.net.inetaddr.ttl", "0");
		// System.setProperty("sun.net.inetaddr.negative.ttl", "0");
		int byteLength = 0;
		int BUF_SIZE = 1024;
		byte[] input_buffer = new byte[BUF_SIZE];
		BufferedOutputStream outStream = null;
		InputStream inStream = null;
		try {
			outStream = new BufferedOutputStream(new FileOutputStream("DEN.xml"), BUF_SIZE);
			URLConnection urlCon = null;
			URL url = new URL(urlAddress);
			urlCon = url.openConnection();
			urlCon.setConnectTimeout((int) 100000);
			urlCon.setReadTimeout((int) 100000);
			inStream = urlCon.getInputStream();
			while ((byteLength = inStream.read(input_buffer, 0, BUF_SIZE)) > 0) {
				outStream.write(input_buffer, 0, byteLength);
			}
			// Close streams.
			outStream.flush();
		} finally {
			if (outStream != null) {
				outStream.close();
			}
			if (inStream != null) {
				inStream.close();
			}
		}
	}