D-Net

package eu.dnetlib.statsapi.repositories;

import eu.dnetlib.statsapi.domain.Result;

import org.apache.log4j.Logger;

import org.springframework.data.redis.core.HashOperations;

import org.springframework.data.redis.core.RedisTemplate;

import org.springframework.stereotype.Repository;

import java.security.MessageDigest;

@Repository

public class StatsRepository {

    private RedisTemplate<String, String> redisTemplate;

    private HashOperations<String, String, String> jedis;

    private final Logger log = Logger.getLogger(this.getClass());

    public StatsRepository(RedisTemplate<String, String> redisTemplate) {

        this.redisTemplate = redisTemplate;

        this.jedis = this.redisTemplate.opsForHash();

    }

    private static String MD5(String string) throws java.security.NoSuchAlgorithmException {

        MessageDigest md = MessageDigest.getInstance("MD5");

        md.update(string.getBytes());

        byte byteData[] = md.digest();

        StringBuilder sb = new StringBuilder();

        for (byte aByteData : byteData) {

            sb.append(Integer.toString((aByteData & 0xff) + 0x100, 16).substring(1));

        }

        return sb.toString();

    }

    public Result getNumber(String number) {

        String redis_result = jedis.get("STATS_NUMBERS", number);

        if (redis_result != null) {

            return new Result("OK", "200", Integer.parseInt(redis_result.replaceAll(",", "")));

        }

        return new Result("Not Found", "400", null);

    }

}