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package com.lordofthejars.nosqlunit.redis;

import static ch.lambdaj.collection.LambdaCollections.with;
import static org.hamcrest.CoreMatchers.anything;

import java.util.HashMap;
import java.util.Map;

import redis.clients.jedis.Jedis;


public class EmbeddedRedisInstances {

	private static EmbeddedRedisInstances embeddedInstances;
	
	private Map instances = new HashMap();
	
	private EmbeddedRedisInstances() {
		super();
	}

	public static synchronized EmbeddedRedisInstances getInstance() {
		if (embeddedInstances == null) {
			embeddedInstances = new EmbeddedRedisInstances();
		}
		return embeddedInstances;
	}
	
	public void addJedis(Jedis jedis, String targetPath) {
		this.instances.put(targetPath, jedis);
	}
	
	public void removeJedis(String targetPath) {
		this.instances.remove(targetPath);
	}
	
	public Jedis getJedisByTargetPath(String targetPath) {
		return this.instances.get(targetPath);
	}
	
	public Jedis getDefaultJedis() {
		return with(this.instances).values().first(anything());
	}
	
}