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fix thread-unsafe in NacosRefreshHistory

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pyh_uestc 2019-05-24 15:19:07 +08:00
parent 5fd04277cb
commit c3e5e4cafa
1 changed files with 7 additions and 2 deletions
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spring-cloud-alibaba-nacos-config/src/main/java/org/springframework/cloud/alibaba/nacos/refresh/NacosRefreshHistory.java
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@ -27,10 +27,15 @@ public class NacosRefreshHistory {
private LinkedList<Record> records = new LinkedList<>(); private LinkedList<Record> records = new LinkedList<>();
private DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); private ThreadLocal<DateFormat> dateFormat = new ThreadLocal<DateFormat>(){
@Override
protected DateFormat initialValue() {
return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
}
};
public void add(String dataId, String md5) { public void add(String dataId, String md5) {
records.addFirst(new Record(dateFormat.format(new Date()), dataId, md5)); records.addFirst(new Record(dateFormat.get().format(new Date()), dataId, md5));
if (records.size() > MAX_SIZE) { if (records.size() > MAX_SIZE) {
records.removeLast(); records.removeLast();
} }