ElecRedisService.java
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package com.bsth.redis;
import com.bsth.entity.ElecInfo;
import com.bsth.redis.util.RedisUtils;
import com.bsth.repository.ElecInfoRepository;
import com.bsth.util.ConfigUtil;
import com.bsth.util.ConvertUtil;
import com.google.common.collect.ArrayListMultimap;
import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.core.annotation.Order;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import org.springframework.stereotype.Service;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
* 油量数据Redis缓存
* Created by panzhao on 2017/3/19.
*/
@Service
@Order(3)
public class ElecRedisService implements CommandLineRunner {
@Autowired
private RedisTemplate redisTemplate;
@Autowired
ElecInfoRepository elecInfoRepository;
@Autowired
RedisUtils redisUtils;
static Logger logger = LoggerFactory.getLogger(ElecRedisService.class);
private final static String REDIS_KEY_PREFIX = "elec:";
/**
* 将油量数据写入redis
*
* @param list
*/
public void wirte(List<ElecInfo> list) {
ArrayListMultimap<String, ElecInfo> multimap;
try {
if (list.size() == 0)
return;
//按日期和线路分组数据
Class clazz = ElecInfo.class;
multimap = new ConvertUtil().groupMultiList(list, ":", clazz.getDeclaredField("nbbm"), clazz.getDeclaredField("rq"));
//写入redis
Iterator<String> iterator = multimap.keySet().iterator();
String key;
while (iterator.hasNext()) {
key = iterator.next();
mergeData(key, multimap.get(key));
}
} catch (Exception e) {
logger.error("", e);
}
}
/**
* 根据车辆和日期获取油耗数据，以 车辆_驾驶员 为key
*
* @param nbbmArray
* @param rq
* @return
*/
public ArrayListMultimap findByNbbmGroup(Iterable<String> nbbmArray, String rq) {
ArrayListMultimap rs = ArrayListMultimap.create();
rq = rq.replaceAll("-", "");
try {
List<ElecInfo> list = new ArrayList<>();
for (String nbbm : nbbmArray) {
nbbm = nbbm.split("_")[1];
list.addAll(read(nbbm, rq));
}
Class clazz = ElecInfo.class;
rs = new ConvertUtil().groupMultiList(list, "_", clazz.getDeclaredField("nbbm"), clazz.getDeclaredField("jsy"));
} catch (Exception e) {
logger.error("", e);
}
return rs;
}
/**
* 根据车辆和日期获取油耗数据，以 车辆 为key
*
* @param nbbmArray
* @param rq
* @return
*/
public ArrayListMultimap findByNbbmGroup1(Iterable<String> nbbmArray, String rq) {
ArrayListMultimap rs = ArrayListMultimap.create();
DateTime dateTime = DateTimeFormat.forPattern("yyyy-MM-dd").parseDateTime(rq);
try {
List<ElecInfo> list = elecInfoRepository.findByDate(dateTime.toDate());
Class clazz = ElecInfo.class;
rs = new ConvertUtil().groupMultiList(list, "_", clazz.getDeclaredField("nbbm"));
} catch (Exception e) {
logger.error("", e);
}
return rs;
}
public List<ElecInfo> read(String nbbm, String rq) {
return redisTemplate.opsForList().range(REDIS_KEY_PREFIX + nbbm + ":" + rq, 0, -1);
}
/**
* 将 list 与redis里的数据合并
*
* @param key
* @param list
*/
public void mergeData(String key, List<ElecInfo> list) {
key = REDIS_KEY_PREFIX + key;
//更新 直接覆盖更新
redisTemplate.execute(redisUtils.getUpdateCallback(key, list));
}
@Override
public void run(String... strings) throws Exception {
}
/**
* 和数据库同步数据
*/
public void synchData(Integer days) {
int cacheDays = Integer.parseInt(ConfigUtil.get("cache.days"));
if (null != days && days < cacheDays)
cacheDays = days;
//设置key 序列化器
redisTemplate.setKeySerializer(new StringRedisSerializer());
DateTime dt = new DateTime();
dt = dt.withHourOfDay(0).withMinuteOfHour(0).withSecondOfMinute(0).minusDays(cacheDays);
List<ElecInfo> list = elecInfoRepository.findByDateLT(dt.toDate());
//写入redis
wirte(list);
logger.info("刷新电耗数据, days: " + cacheDays + " -size: " + list.size() + " -LT: " + dt.toString("yyyy-MM-dd"));
}
}