gc/kcg-monitoring
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Merge pull request 'release: 2026-03-24.4 (캐시 TTL 수정)' (#183) from develop into main
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htlee 2026-03-24 14:21:16 +09:00
커밋 1029e07432
1개의 변경된 파일과 7개의 추가작업 그리고 1개의 파일을 삭제
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backend/src/main/java/gc/mda/kcg/domain/fleet/GroupPolygonService.java
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@ -24,6 +24,9 @@ public class GroupPolygonService {
private final CacheManager cacheManager; private final CacheManager cacheManager;
private final ObjectMapper objectMapper; private final ObjectMapper objectMapper;
private static final long CACHE_TTL_MS = 5 * 60_000L; // 5분
private volatile long lastCacheTime = 0;
private static final String LATEST_GROUPS_SQL = """ private static final String LATEST_GROUPS_SQL = """
SELECT group_type, group_key, group_label, snapshot_time, SELECT group_type, group_key, group_label, snapshot_time,
ST_AsGeoJSON(polygon) AS polygon_geojson, ST_AsGeoJSON(polygon) AS polygon_geojson,
@ -61,7 +64,9 @@ public class GroupPolygonService {
@SuppressWarnings("unchecked") @SuppressWarnings("unchecked")
public List<GroupPolygonDto> getLatestGroups() { public List<GroupPolygonDto> getLatestGroups() {
Cache cache = cacheManager.getCache(CacheConfig.GROUP_POLYGONS); Cache cache = cacheManager.getCache(CacheConfig.GROUP_POLYGONS);
if (cache != null) { long now = System.currentTimeMillis();
if (cache != null && (now - lastCacheTime) < CACHE_TTL_MS) {
Cache.ValueWrapper wrapper = cache.get("data"); Cache.ValueWrapper wrapper = cache.get("data");
if (wrapper != null) { if (wrapper != null) {
return (List<GroupPolygonDto>) wrapper.get(); return (List<GroupPolygonDto>) wrapper.get();
@ -72,6 +77,7 @@ public class GroupPolygonService {
if (cache != null) { if (cache != null) {
cache.put("data", results); cache.put("data", results);
lastCacheTime = now;
} }
return results; return results;
} }