Code example for Cache

Methods: getIfPresentput

	protected String generateAlertId(String source_ip, String dst_ip,
			int alert_type) {
		String key = makeKey(source_ip, dst_ip, alert_type);
		if (cache.getIfPresent(key) != null)
			return cache.getIfPresent(key);
		String new_UUID = System.currentTimeMillis() + "-" + UUID.randomUUID();
		cache.put(key, new_UUID);
		key = makeKey(dst_ip, source_ip, alert_type);
		cache.put(key, new_UUID);
		return new_UUID;
	public boolean refresh() throws Exception {
		// TODO Auto-generated method stub 
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