1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
/*
* ============LICENSE_START=======================================================
* Copyright (C) 2023 Nordix Foundation
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.cps.ncmp.api.impl.events.avcsubscription;
import com.hazelcast.map.IMap;
import java.util.Collection;
import java.util.Collections;
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.utils.DmiServiceNameOrganizer;
import org.onap.cps.ncmp.api.impl.yangmodels.YangModelCmHandle;
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;
@Component
@Slf4j
@RequiredArgsConstructor
public class SubscriptionEventForwarder {
private final InventoryPersistence inventoryPersistence;
private final EventsPublisher<SubscriptionEvent> eventsPublisher;
private final IMap<String, Set<String>> forwardedSubscriptionEventCache;
private final SubscriptionEventResponseOutcome subscriptionEventResponseOutcome;
private final ScheduledExecutorService executorService = Executors.newSingleThreadScheduledExecutor();
@Value("${app.ncmp.avc.subscription-forward-topic-prefix}")
private String dmiAvcSubscriptionTopicPrefix;
@Value("${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,
final Headers eventHeaders) {
final List<Object> cmHandleTargets = subscriptionEvent.getEvent().getPredicates().getTargets();
if (cmHandleTargets == null || cmHandleTargets.isEmpty()
|| cmHandleTargets.stream().anyMatch(id -> ((String) id).contains("*"))) {
throw new OperationNotYetSupportedException(
"CMHandle targets are required. \"Wildcard\" operations are not yet supported");
}
final List<String> cmHandleTargetsAsStrings = cmHandleTargets.stream().map(
Objects::toString).collect(Collectors.toList());
final Collection<YangModelCmHandle> yangModelCmHandles =
inventoryPersistence.getYangModelCmHandles(cmHandleTargetsAsStrings);
final Map<String, Map<String, Map<String, String>>> dmiPropertiesPerCmHandleIdPerServiceName
= DmiServiceNameOrganizer.getDmiPropertiesPerCmHandleIdPerServiceName(yangModelCmHandles);
final Set<String> dmisToRespond = new HashSet<>(dmiPropertiesPerCmHandleIdPerServiceName.keySet());
if (dmisToRespond.isEmpty()) {
final String clientID = subscriptionEvent.getEvent().getSubscription().getClientID();
final String subscriptionName = subscriptionEvent.getEvent().getSubscription().getName();
subscriptionEventResponseOutcome.sendResponse(clientID, subscriptionName, true);
} 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);
final String dmiAvcSubscriptionTopic = dmiAvcSubscriptionTopicPrefix + dmiName;
eventsPublisher.publishEvent(dmiAvcSubscriptionTopic, eventKey, eventHeaders, subscriptionEvent);
});
}
private String createEventKey(final SubscriptionEvent subscriptionEvent, final String dmiName) {
return subscriptionEvent.getEvent().getSubscription().getClientID()
+ "-"
+ subscriptionEvent.getEvent().getSubscription().getName()
+ "-"
+ dmiName;
}
}
|
