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
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/*
* ============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 io.cloudevents.CloudEvent;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
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.onap.cps.ncmp.api.impl.config.embeddedcache.ForwardedSubscriptionEventCacheConfig;
import org.onap.cps.ncmp.api.impl.events.EventsPublisher;
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.utils.SubscriptionEventCloudMapper;
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.events.avcsubscription1_0_0.client_to_ncmp.SubscriptionEvent;
import org.onap.cps.ncmp.events.avcsubscription1_0_0.dmi_to_ncmp.Data;
import org.onap.cps.ncmp.events.avcsubscription1_0_0.dmi_to_ncmp.SubscriptionEventResponse;
import org.onap.cps.ncmp.events.avcsubscription1_0_0.ncmp_to_dmi.CmHandle;
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<CloudEvent> eventsPublisher;
private final IMap<String, Set<String>> forwardedSubscriptionEventCache;
private final SubscriptionEventResponseOutcome subscriptionEventResponseOutcome;
private final SubscriptionEventMapper subscriptionEventMapper;
private final SubscriptionEventCloudMapper subscriptionEventCloudMapper;
private final ClientSubscriptionEventMapper clientSubscriptionEventMapper;
private final SubscriptionPersistence subscriptionPersistence;
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 String eventType) {
final List<String> cmHandleTargets = subscriptionEvent.getData().getPredicates().getTargets();
if (cmHandleTargets == null || cmHandleTargets.isEmpty()
|| cmHandleTargets.stream().anyMatch(id -> (id).contains("*"))) {
throw new UnsupportedOperationException(
"CMHandle targets are required. \"Wildcard\" operations are not yet supported");
}
final Collection<YangModelCmHandle> yangModelCmHandles =
inventoryPersistence.getYangModelCmHandles(cmHandleTargets);
final Map<String, Map<String, Map<String, String>>> dmiPropertiesPerCmHandleIdPerServiceName
= DmiServiceNameOrganizer.getDmiPropertiesPerCmHandleIdPerServiceName(yangModelCmHandles);
findDmisAndRespond(subscriptionEvent, eventType, cmHandleTargets, dmiPropertiesPerCmHandleIdPerServiceName);
}
private void findDmisAndRespond(final SubscriptionEvent subscriptionEvent, final String eventType,
final List<String> cmHandleTargetsAsStrings,
final Map<String, Map<String, Map<String, String>>>
dmiPropertiesPerCmHandleIdPerServiceName) {
final SubscriptionEventResponse emptySubscriptionEventResponse =
new SubscriptionEventResponse().withData(new Data());
emptySubscriptionEventResponse.getData().setSubscriptionName(
subscriptionEvent.getData().getSubscription().getName());
emptySubscriptionEventResponse.getData().setClientId(
subscriptionEvent.getData().getSubscription().getClientID());
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()) {
subscriptionEventResponseOutcome.sendResponse(emptySubscriptionEventResponse,
"subscriptionCreatedStatus");
} else {
startResponseTimeout(emptySubscriptionEventResponse, dmisToRespond);
final org.onap.cps.ncmp.events.avcsubscription1_0_0.ncmp_to_dmi.SubscriptionEvent ncmpSubscriptionEvent =
clientSubscriptionEventMapper.toNcmpSubscriptionEvent(subscriptionEvent);
forwardEventToDmis(dmiPropertiesPerCmHandleIdPerServiceName, ncmpSubscriptionEvent, eventType);
}
}
private void startResponseTimeout(final SubscriptionEventResponse emptySubscriptionEventResponse,
final Set<String> dmisToRespond) {
final String subscriptionClientId = emptySubscriptionEventResponse.getData().getClientId();
final String subscriptionName = emptySubscriptionEventResponse.getData().getSubscriptionName();
final String subscriptionEventId = subscriptionClientId + subscriptionName;
forwardedSubscriptionEventCache.put(subscriptionEventId, dmisToRespond,
ForwardedSubscriptionEventCacheConfig.SUBSCRIPTION_FORWARD_STARTED_TTL_SECS, TimeUnit.SECONDS);
final ResponseTimeoutTask responseTimeoutTask =
new ResponseTimeoutTask(forwardedSubscriptionEventCache, subscriptionEventResponseOutcome,
emptySubscriptionEventResponse);
executorService.schedule(responseTimeoutTask, dmiResponseTimeoutInMs, TimeUnit.MILLISECONDS);
}
private void forwardEventToDmis(final Map<String, Map<String, Map<String, String>>> dmiNameCmHandleMap,
final org.onap.cps.ncmp.events.avcsubscription1_0_0.ncmp_to_dmi.SubscriptionEvent
ncmpSubscriptionEvent, final String eventType) {
dmiNameCmHandleMap.forEach((dmiName, cmHandlePropertiesMap) -> {
final List<CmHandle> cmHandleTargets = cmHandlePropertiesMap.entrySet().stream().map(
cmHandleAndProperties -> {
final CmHandle cmHandle = new CmHandle();
cmHandle.setId(cmHandleAndProperties.getKey());
cmHandle.setAdditionalProperties(cmHandleAndProperties.getValue());
return cmHandle;
}).collect(Collectors.toList());
ncmpSubscriptionEvent.getData().getPredicates().setTargets(cmHandleTargets);
final String eventKey = createEventKey(ncmpSubscriptionEvent, dmiName);
final String dmiAvcSubscriptionTopic = dmiAvcSubscriptionTopicPrefix + dmiName;
final CloudEvent ncmpSubscriptionCloudEvent =
subscriptionEventCloudMapper.toCloudEvent(ncmpSubscriptionEvent, eventKey, eventType);
eventsPublisher.publishCloudEvent(dmiAvcSubscriptionTopic, eventKey, ncmpSubscriptionCloudEvent);
});
}
private String createEventKey(
final org.onap.cps.ncmp.events.avcsubscription1_0_0.ncmp_to_dmi.SubscriptionEvent subscriptionEvent,
final String dmiName) {
return subscriptionEvent.getData().getSubscription().getClientID()
+ "-"
+ subscriptionEvent.getData().getSubscription().getName()
+ "-"
+ dmiName;
}
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, "Targets not found"))
.collect(Collectors.toList());
}
}
|
