rawlinp commented on a change in pull request #2785: In Traffic Router Support
Snapshots which only update Delivery Services
URL: https://github.com/apache/trafficcontrol/pull/2785#discussion_r237241309
##########
File path:
traffic_router/core/src/main/java/com/comcast/cdn/traffic_control/traffic_router/core/config/ConfigHandler.java
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@@ -320,16 +408,100 @@ private void parseTrafficOpsConfig(final JsonNode
config, final JsonNode stats)
/**
* Parses the cache information from the configuration and updates the
{@link CacheRegister}.
*
- * @param trConfig
- * the {@link TrafficRouterConfiguration}
+ * @param snap the {@link SnapshotEventsProcessor}
+ * @param cacheRegister the {@link CacheRegister}
+ */
+ @SuppressWarnings({"PMD.AvoidDeeplyNestedIfStmts" })
+ private void parseCacheConfig(final SnapshotEventsProcessor snap,
+ final CacheRegister cacheRegister) throws
+ ParseException {
+ final Map<String, Cache> existingCacheMap =
cacheRegister.getCacheMap();
+ // first Remove caches that have been deleted
+ existingCacheMap.entrySet().removeIf(exEntry-> {
+ if
(snap.getDeleteCacheEvents().contains(exEntry.getKey())){
+ LOGGER.info("Removed cache from map:
"+exEntry.getKey());
+ return true;
+ }
+ return false;
+ });
+ // remove deleted caches from locations
+ // this works because 'loc.getCaches()' makes a copy
+ final Set<CacheLocation> exLocations =
cacheRegister.getCacheLocations();
Review comment:
Do you mind renaming this to `existingLocations`? `exLocations` makes me
think "ex-locations" like they're being removed or something.
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