lmccay commented on a change in pull request #307: KNOX-2304 - CM discovery
cluster config monitor needs to be aware of …
URL: https://github.com/apache/knox/pull/307#discussion_r405598727
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File path:
gateway-discovery-cm/src/main/java/org/apache/knox/gateway/topology/discovery/cm/monitor/PollingConfigurationAnalyzer.java
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@@ -365,12 +375,32 @@ private DiscoveryApiClient getApiClient(final
ServiceDiscoveryConfig discoveryCo
clusterName,
lastTimestamp);
for (ApiEvent event : events) {
- restartEvents.add(new RestartEvent(event));
+ List<ApiEventAttribute> attributes = event.getAttributes();
+ Map<String,Object> map = getAttributeMap(attributes);
+ addIfRelevantEvent(restartEvents, event, map);
}
return restartEvents;
}
+ @SuppressWarnings("unchecked")
+ private void addIfRelevantEvent(List<RestartEvent> restartEvents, ApiEvent
event, Map<String, Object> map) {
+ String command = null;
+ String status = null;
+ command = (String) ((List<String>) map.get(COMMAND)).get(0);
+ status = (String) ((List<String>) map.get(COMMAND_STATUS)).get(0);
+ if (START_COMMAND.equals(command) || RESTART_COMMAND.equals(command) &&
+ SUCCEEDED_STATUS.equals(status) || STARTED_STATUS.equals(status)) {
+ restartEvents.add(new RestartEvent(event));
+ }
+ }
+
+ private Map<String, Object> getAttributeMap(List<ApiEventAttribute>
attributes) {
+ Map<String,Object> map = new HashMap<>();
+ attributes.forEach(attr -> { map.put(attr.getName(), attr.getValues());});
Review comment:
Yes, the map is redone for each event purposely. It is only a map of the
attributes for the given event. The order of the events hasn't changed as a
result of this patch and is driven by the REST API response and has nothing to
do with the creation of this map. It works as intended.
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