Jediscluster the way to implement the Redis keys command _redis

Because Jediscluster does not provide an encapsulation of the keys command, it can only be implemented by itself:

Define the interface first. Returns using TreeSet to make it easy to take advantage of its top () method:

Public interface Iredisoperator {

	/**
	 * To obtain all keys
	 * @param pattern
	 * @return
	treeset<string> keys (String pattern);

Implementation class:

public class Redisoperator implements Iredisoperator {public

	final static Logger Logger = Loggerfactory.getlogger (Re Disoperator.class);

	@Autowired
	private Jediscluster jediscluster;

	@Override public
	treeset<string> keys (String pattern) {
		logger.debug ("Start getting Keys ...");
		treeset<string> keys = new treeset<> ();
		map<string, jedispool> clusternodes = Jediscluster.getclusternodes ();
		For (String K:clusternodes.keyset ()) {
			logger.debug ("Getting keys from: {}", k);
			Jedispool JP = Clusternodes.get (k);
			Jedis connection = Jp.getresource ();
			try {
				Keys.addall (Connection.keys (pattern));
			} catch (Exception e) {
				logger.error ("Getting Keys error: {} ", E);
			} finally{
				logger.debug ("Connection closed.");
				Connection.close ()//////...
			}
		}
		Logger.debug ("Keys gotten!");
		return keys;
	}

Call:

		treeset<string> keys = redisoperator.keys (prefix);
		map<string, object> data = new linkedhashmap<> ();
		Data.put ("prefix", prefix);
		Data.put ("Count", Keys.size ());
		String type = "Unknown";
		if (Keys.size () >0) {
			type = Redisoperator.type (Keys.first ());
		}
		Data.put ("type", type);