Token Generator; Example usage: pageToken for a long result set like the APIs of Google Place API

TokenGenerator

public static String generateToken(String prefix, int uid)
{
	long now = System.currentTimeMillis();
	
	// Shorten integer values
	String nowStr = Base64.encodeLong(now);
	String uidStr = Base64.encodeInt(uid);
	
	// Concatenate
	String token = prefix + nowStr + uidStr;
	
	// replace some special symbols
	token = token.replaceAll("[\n =]", "_");

	return token;
}