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fix:lambda

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houxinyu
2023-07-09 17:25:10 +08:00
parent 7bdda07129
commit c16a38341b
1 changed files with 42 additions and 44 deletions
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86
liteflow-rule-plugin/liteflow-rule-redis/src/main/java/com/yomahub/liteflow/parser/redis/util/RedisParserByPolling.java
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@@ -209,55 +209,53 @@ public class RedisParserByPolling implements RedisParserHelper{
* 再根据hash中value的SHA值修改变化的和被删除的chain
*/
private Runnable pollChainTask(String keyLua, String valueLua) {
Runnable r = new Runnable() {
@Override
public void run() {
String chainKey = redisParserVO.getChainKey();
//先获取chainKey中最新的chain数量
String keyNum = chainJedis.evalsha(keyLua, 1, chainKey).toString();
//修改chainFieldNum为最新chain数量
chainFieldNum = Integer.parseInt(keyNum);
Runnable r = () -> {
String chainKey = redisParserVO.getChainKey();
//先获取chainKey中最新的chain数量
String keyNum = chainJedis.evalsha(keyLua, 1, chainKey).toString();
//修改chainFieldNum为最新chain数量
chainFieldNum = Integer.parseInt(keyNum);
//遍历Map,判断各个chain的value有无变化：修改变化了值的chain和被删除的chain
for(Map.Entry<String, String> entry: chainSHAMap.entrySet()) {
String chainId = entry.getKey();
String oldSHA = entry.getValue();
String newSHA = chainJedis.evalsha(valueLua, 2, chainKey, chainId).toString();
if (StrUtil.equals(newSHA, "nil")) {
//新SHA值为nil, 即未获取到该chain,表示该chain已被删除
FlowBus.removeChain(chainId);
LOG.info("starting reload flow config... delete key={}", chainId);
//遍历Map,判断各个chain的value有无变化：修改变化了值的chain和被删除的chain
for(Map.Entry<String, String> entry: chainSHAMap.entrySet()) {
String chainId = entry.getKey();
String oldSHA = entry.getValue();
String newSHA = chainJedis.evalsha(valueLua, 2, chainKey, chainId).toString();
if (StrUtil.equals(newSHA, "nil")) {
//新SHA值为nil, 即未获取到该chain,表示该chain已被删除
FlowBus.removeChain(chainId);
LOG.info("starting reload flow config... delete key={}", chainId);
//修改SHAMap
chainSHAMap.remove(chainId);
}
else if (!StrUtil.equals(newSHA, oldSHA)) {
//SHA值发生变化,表示该chain的值已被修改,重新拉取变化的chain
//修改SHAMap
chainSHAMap.remove(chainId);
}
else if (!StrUtil.equals(newSHA, oldSHA)) {
//SHA值发生变化,表示该chain的值已被修改,重新拉取变化的chain
String chainData = chainJedis.hget(chainKey, chainId);
LiteFlowChainELBuilder.createChain().setChainId(chainId).setEL(chainData).build();
LOG.info("starting poll flow config... update key={} new value={},", chainId, chainData);
//修改SHAMap
chainSHAMap.put(chainId, newSHA);
}
//SHA值无变化,表示该chain未改变
}
//处理新添加chain和chainId被修改的情况
if (chainFieldNum > chainSHAMap.size()) {
//如果封装的SHAMap数量比最新chain总数少, 说明有两种情况：
// 1、添加了新chain
// 2、修改了chainId:因为遍历到旧的id时会取到nil,SHAMap会把原来的chainId删掉,但没有机会添加新的chainId
// 3、上述两者结合
//在此处重新拉取所有chainId集合,补充添加新chain
Set<String> newChainSet = chainJedis.hkeys(chainKey);
for (String chainId : newChainSet) {
if (chainSHAMap.get(chainId) == null) {
//将新chainId添加到LiteFlowChainELBuilder和SHAMap
String chainData = chainJedis.hget(chainKey, chainId);
LiteFlowChainELBuilder.createChain().setChainId(chainId).setEL(chainData).build();
LOG.info("starting poll flow config... update key={} new value={},", chainId, chainData);
//修改SHAMap
chainSHAMap.put(chainId, newSHA);
}
//SHA值无变化,表示该chain未改变
}
//处理新添加chain和chainId被修改的情况
if (chainFieldNum > chainSHAMap.size()) {
//如果封装的SHAMap数量比新的chain总数少, 说明有两种情况：
// 1、添加了新chain
// 2、修改了chainId:因为遍历到旧的id时会取到nil,SHAMap会把原来的chainId删掉,但没有机会添加新的chainId
//在此处重新拉取所有chainId集合,补充添加新chainId
Set<String> newChainSet = chainJedis.hkeys(chainKey);
for (String chainId : newChainSet) {
if (chainSHAMap.get(chainId) == null) {
//将新chainId添加到LiteFlowChainELBuilder和SHAMap
String chainData = chainJedis.hget(chainKey, chainId);
LiteFlowChainELBuilder.createChain().setChainId(chainId).setEL(chainData).build();
LOG.info("starting poll flow config... update key={} new value={},", chainId, chainData);
chainSHAMap.put(chainId, DigestUtil.sha1Hex(chainData));
}
chainSHAMap.put(chainId, DigestUtil.sha1Hex(chainData));
}
}
}