package org.onap.cps.ncmp.api.impl.events.avcsubscription;
+import com.hazelcast.map.IMap;
+import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
-import java.util.HashMap;
+import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Objects;
+import java.util.Set;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
+import org.apache.kafka.common.header.Headers;
+import org.onap.cps.ncmp.api.impl.config.embeddedcache.ForwardedSubscriptionEventCacheConfig;
import org.onap.cps.ncmp.api.impl.events.EventsPublisher;
-import org.onap.cps.ncmp.api.impl.operations.RequiredDmiService;
+import org.onap.cps.ncmp.api.impl.subscriptions.SubscriptionPersistence;
+import org.onap.cps.ncmp.api.impl.subscriptions.SubscriptionStatus;
+import org.onap.cps.ncmp.api.impl.utils.DmiServiceNameOrganizer;
import org.onap.cps.ncmp.api.impl.yangmodels.YangModelCmHandle;
+import org.onap.cps.ncmp.api.impl.yangmodels.YangModelSubscriptionEvent;
import org.onap.cps.ncmp.api.inventory.InventoryPersistence;
import org.onap.cps.ncmp.event.model.SubscriptionEvent;
import org.onap.cps.spi.exceptions.OperationNotYetSupportedException;
+import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
private final InventoryPersistence inventoryPersistence;
private final EventsPublisher<SubscriptionEvent> eventsPublisher;
+ private final IMap<String, Set<String>> forwardedSubscriptionEventCache;
+ private final SubscriptionEventResponseOutcome subscriptionEventResponseOutcome;
+ private final SubscriptionEventMapper subscriptionEventMapper;
+ private final SubscriptionPersistence subscriptionPersistence;
+ private final ScheduledExecutorService executorService = Executors.newSingleThreadScheduledExecutor();
+ @Value("${app.ncmp.avc.subscription-forward-topic-prefix}")
+ private String dmiAvcSubscriptionTopicPrefix;
- private static final String DMI_AVC_SUBSCRIPTION_TOPIC_PREFIX = "ncmp-dmi-cm-avc-subscription-";
+ @Value("${ncmp.timers.subscription-forwarding.dmi-response-timeout-ms:30000}")
+ private int dmiResponseTimeoutInMs;
/**
* Forward subscription event.
*
* @param subscriptionEvent the event to be forwarded
*/
- public void forwardCreateSubscriptionEvent(final SubscriptionEvent subscriptionEvent) {
+ public void forwardCreateSubscriptionEvent(final SubscriptionEvent subscriptionEvent,
+ final Headers eventHeaders) {
final List<Object> cmHandleTargets = subscriptionEvent.getEvent().getPredicates().getTargets();
if (cmHandleTargets == null || cmHandleTargets.isEmpty()
- || cmHandleTargets.stream().anyMatch(id -> ((String) id).contains("*"))) {
+ || cmHandleTargets.stream().anyMatch(id -> ((String) id).contains("*"))) {
throw new OperationNotYetSupportedException(
- "CMHandle targets are required. \"Wildcard\" operations are not yet supported");
+ "CMHandle targets are required. \"Wildcard\" operations are not yet supported");
}
final List<String> cmHandleTargetsAsStrings = cmHandleTargets.stream().map(
- Objects::toString).collect(Collectors.toList());
+ Objects::toString).collect(Collectors.toList());
final Collection<YangModelCmHandle> yangModelCmHandles =
- inventoryPersistence.getYangModelCmHandles(cmHandleTargetsAsStrings);
- final Map<String, Map<String, Map<String, String>>> dmiNameCmHandleMap =
- organizeByDmiName(yangModelCmHandles);
+ inventoryPersistence.getYangModelCmHandles(cmHandleTargetsAsStrings);
+
+ final Map<String, Map<String, Map<String, String>>> dmiPropertiesPerCmHandleIdPerServiceName
+ = DmiServiceNameOrganizer.getDmiPropertiesPerCmHandleIdPerServiceName(yangModelCmHandles);
+
+ findDmisAndRespond(subscriptionEvent, eventHeaders, cmHandleTargetsAsStrings,
+ dmiPropertiesPerCmHandleIdPerServiceName);
+ }
+
+ private void findDmisAndRespond(final SubscriptionEvent subscriptionEvent, final Headers eventHeaders,
+ final List<String> cmHandleTargetsAsStrings,
+ final Map<String, Map<String, Map<String, String>>>
+ dmiPropertiesPerCmHandleIdPerServiceName) {
+ final List<String> cmHandlesThatExistsInDb = dmiPropertiesPerCmHandleIdPerServiceName.entrySet().stream()
+ .map(Map.Entry::getValue).map(Map::keySet).flatMap(Set::stream).collect(Collectors.toList());
+
+ final List<String> targetCmHandlesDoesNotExistInDb = new ArrayList<>(cmHandleTargetsAsStrings);
+ targetCmHandlesDoesNotExistInDb.removeAll(cmHandlesThatExistsInDb);
+
+ final Set<String> dmisToRespond = new HashSet<>(dmiPropertiesPerCmHandleIdPerServiceName.keySet());
+
+ if (dmisToRespond.isEmpty() || !targetCmHandlesDoesNotExistInDb.isEmpty()) {
+ updatesCmHandlesToRejectedAndPersistSubscriptionEvent(subscriptionEvent, targetCmHandlesDoesNotExistInDb);
+ }
+ if (dmisToRespond.isEmpty()) {
+ final String clientID = subscriptionEvent.getEvent().getSubscription().getClientID();
+ final String subscriptionName = subscriptionEvent.getEvent().getSubscription().getName();
+ subscriptionEventResponseOutcome.sendResponse(clientID, subscriptionName);
+ } else {
+ startResponseTimeout(subscriptionEvent, dmisToRespond);
+ forwardEventToDmis(dmiPropertiesPerCmHandleIdPerServiceName, subscriptionEvent, eventHeaders);
+ }
+ }
+
+ private void startResponseTimeout(final SubscriptionEvent subscriptionEvent, final Set<String> dmisToRespond) {
+ final String subscriptionClientId = subscriptionEvent.getEvent().getSubscription().getClientID();
+ final String subscriptionName = subscriptionEvent.getEvent().getSubscription().getName();
+ final String subscriptionEventId = subscriptionClientId + subscriptionName;
+
+ forwardedSubscriptionEventCache.put(subscriptionEventId, dmisToRespond,
+ ForwardedSubscriptionEventCacheConfig.SUBSCRIPTION_FORWARD_STARTED_TTL_SECS, TimeUnit.SECONDS);
+ final ResponseTimeoutTask responseTimeoutTask =
+ new ResponseTimeoutTask(forwardedSubscriptionEventCache, subscriptionEventResponseOutcome,
+ subscriptionClientId, subscriptionName);
+ try {
+ executorService.schedule(responseTimeoutTask, dmiResponseTimeoutInMs, TimeUnit.MILLISECONDS);
+ } catch (final RuntimeException ex) {
+ log.info("Caught exception in ScheduledExecutorService for ResponseTimeoutTask. StackTrace: {}",
+ ex.toString());
+ }
+ }
+
+ private void forwardEventToDmis(final Map<String, Map<String, Map<String, String>>> dmiNameCmHandleMap,
+ final SubscriptionEvent subscriptionEvent,
+ final Headers eventHeaders) {
dmiNameCmHandleMap.forEach((dmiName, cmHandlePropertiesMap) -> {
subscriptionEvent.getEvent().getPredicates().setTargets(Collections.singletonList(cmHandlePropertiesMap));
final String eventKey = createEventKey(subscriptionEvent, dmiName);
- eventsPublisher.publishEvent(DMI_AVC_SUBSCRIPTION_TOPIC_PREFIX + dmiName, eventKey, subscriptionEvent);
+ final String dmiAvcSubscriptionTopic = dmiAvcSubscriptionTopicPrefix + dmiName;
+ eventsPublisher.publishEvent(dmiAvcSubscriptionTopic, eventKey, eventHeaders, subscriptionEvent);
});
}
- private Map<String, Map<String, Map<String, String>>> organizeByDmiName(
- final Collection<YangModelCmHandle> yangModelCmHandles) {
- final Map<String, Map<String, Map<String, String>>> dmiNameCmHandlePropertiesMap = new HashMap<>();
- yangModelCmHandles.forEach(cmHandle -> {
- final String dmiName = cmHandle.resolveDmiServiceName(RequiredDmiService.DATA);
- if (!dmiNameCmHandlePropertiesMap.containsKey(dmiName)) {
- final Map<String, Map<String, String>> cmHandleDmiPropertiesMap = new HashMap<>();
- cmHandleDmiPropertiesMap.put(cmHandle.getId(), dmiPropertiesAsMap(cmHandle));
- dmiNameCmHandlePropertiesMap.put(cmHandle.getDmiDataServiceName(), cmHandleDmiPropertiesMap);
- } else {
- dmiNameCmHandlePropertiesMap.get(cmHandle.getDmiDataServiceName())
- .put(cmHandle.getId(), dmiPropertiesAsMap(cmHandle));
- }
- });
- return dmiNameCmHandlePropertiesMap;
- }
-
private String createEventKey(final SubscriptionEvent subscriptionEvent, final String dmiName) {
return subscriptionEvent.getEvent().getSubscription().getClientID()
+ "-"
+ dmiName;
}
- public Map<String, String> dmiPropertiesAsMap(final YangModelCmHandle yangModelCmHandle) {
- return yangModelCmHandle.getDmiProperties().stream().collect(
- Collectors.toMap(YangModelCmHandle.Property::getName, YangModelCmHandle.Property::getValue));
+ private void updatesCmHandlesToRejectedAndPersistSubscriptionEvent(
+ final SubscriptionEvent subscriptionEvent,
+ final List<String> targetCmHandlesDoesNotExistInDb) {
+ final YangModelSubscriptionEvent yangModelSubscriptionEvent =
+ subscriptionEventMapper.toYangModelSubscriptionEvent(subscriptionEvent);
+ yangModelSubscriptionEvent.getPredicates()
+ .setTargetCmHandles(findRejectedCmHandles(targetCmHandlesDoesNotExistInDb,
+ yangModelSubscriptionEvent));
+ subscriptionPersistence.saveSubscriptionEvent(yangModelSubscriptionEvent);
}
+ private static List<YangModelSubscriptionEvent.TargetCmHandle> findRejectedCmHandles(
+ final List<String> targetCmHandlesDoesNotExistInDb,
+ final YangModelSubscriptionEvent yangModelSubscriptionEvent) {
+ return yangModelSubscriptionEvent.getPredicates().getTargetCmHandles().stream()
+ .filter(targetCmHandle -> targetCmHandlesDoesNotExistInDb.contains(targetCmHandle.getCmHandleId()))
+ .map(target -> new YangModelSubscriptionEvent.TargetCmHandle(target.getCmHandleId(),
+ SubscriptionStatus.REJECTED)).collect(Collectors.toList());
+ }
}