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
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
|
/*******************************************************************************
* ============LICENSE_START=======================================================
* son-handler
* ================================================================================
* Copyright (C) 2019 Wipro Limited.
* ==============================================================================
* 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.
* ============LICENSE_END=========================================================
*
*******************************************************************************/
package org.onap.dcaegen2.services.sonhms;
import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.fasterxml.jackson.databind.ObjectMapper;
import fj.data.Either;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import org.onap.dcaegen2.services.sonhms.child.ChildThreadUtils;
import org.onap.dcaegen2.services.sonhms.child.PnfUtils;
import org.onap.dcaegen2.services.sonhms.dao.HandOverMetricsRepository;
import org.onap.dcaegen2.services.sonhms.dmaap.PolicyDmaapClient;
import org.onap.dcaegen2.services.sonhms.entity.HandOverMetrics;
import org.onap.dcaegen2.services.sonhms.model.AdditionalMeasurements;
import org.onap.dcaegen2.services.sonhms.model.CellConfig;
import org.onap.dcaegen2.services.sonhms.model.Common;
import org.onap.dcaegen2.services.sonhms.model.Configurations;
import org.onap.dcaegen2.services.sonhms.model.Data;
import org.onap.dcaegen2.services.sonhms.model.FapService;
import org.onap.dcaegen2.services.sonhms.model.Flag;
import org.onap.dcaegen2.services.sonhms.model.HoDetails;
import org.onap.dcaegen2.services.sonhms.model.Lte;
import org.onap.dcaegen2.services.sonhms.model.LteCell;
import org.onap.dcaegen2.services.sonhms.model.NeighborListInUse;
import org.onap.dcaegen2.services.sonhms.model.Payload;
import org.onap.dcaegen2.services.sonhms.model.PmNotification;
import org.onap.dcaegen2.services.sonhms.model.Ran;
import org.onap.dcaegen2.services.sonhms.utils.BeanUtil;
import org.onap.dcaegen2.services.sonhms.utils.DmaapUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class PmNotificationHandler {
private static Logger log = LoggerFactory.getLogger(PmNotificationHandler.class);
PolicyDmaapClient policyDmaapClient;
public PmNotificationHandler() {
}
public PmNotificationHandler(PolicyDmaapClient policyDmaapClient) {
this.policyDmaapClient = policyDmaapClient;
}
/**
* handle PM notifications.
*/
public Boolean handlePmNotifications(PmNotification pmNotification, int badThreshold, int poorThreshold,
int badCountThreshold) {
Boolean result;
Boolean newEntryFlag = false;
try {
List<HoDetails> hoDetailsList = new ArrayList<>();
List<LteCell> lteCellList = new ArrayList<>();
String srcCellId = pmNotification.getEvent().getCommonEventHeader().getSourceName();
/*
* check whether entry already exists if yes : read the hometrics and update it
* with latest info else store the current data
*/
HoMetricsComponent hoMetricsComponent = new HoMetricsComponent();
Either<List<HoDetails>, Integer> hoMetrics = hoMetricsComponent.getHoMetrics(srcCellId);
Map<String, Integer> dstCellIdPcPair = new HashMap<>();
Map<String, Integer> dstCellIdBcPair = new HashMap<>();
if (hoMetrics.isLeft()) {
List<HoDetails> oldHoDetailsList = hoMetrics.left().value();
for (HoDetails hodetail : oldHoDetailsList) {
dstCellIdBcPair.put(hodetail.getDstCellId(), hodetail.getBadCount());
dstCellIdPcPair.put(hodetail.getDstCellId(), hodetail.getPoorCount());
}
} else if (hoMetrics.right().value() == 404) {
newEntryFlag = true;
log.info("no history of srcCell found");
}
for (AdditionalMeasurements additionalMeasurements : pmNotification.getEvent().getMeasurementFields()
.getAdditionalMeasurements()) {
int attemptsCount = Integer.parseInt(additionalMeasurements.getHashMap().get("InterEnbOutAtt_X2HO"));
int successCount = Integer.parseInt(additionalMeasurements.getHashMap().get("InterEnbOutSucc_X2HO"));
float successRate = ((float) successCount / attemptsCount) * 100;
if (successRate >= badThreshold && successRate <= poorThreshold) { // poor neighbor
HoDetails hoDetails = new HoDetails();
hoDetails.setDstCellId(additionalMeasurements.getName());
hoDetails.setAttemptsCount(attemptsCount);
hoDetails.setSuccessCount(successCount);
hoDetails.setSuccessRate(successRate);
int pc = 1;
int bc = 0;
if (dstCellIdPcPair.containsKey(additionalMeasurements.getName())) {
pc = dstCellIdPcPair.get(additionalMeasurements.getName()) + 1;
}
hoDetails.setBadCount(bc);
hoDetails.setPoorCount(pc);
hoDetailsList.add(hoDetails);
log.info("poor neighbor {}", additionalMeasurements.getName());
} else if (successRate < badThreshold) { // bad neighbor
log.info(" bad neighbor {}", additionalMeasurements.getName());
HoDetails hoDetails = new HoDetails();
hoDetails.setDstCellId(additionalMeasurements.getName());
hoDetails.setAttemptsCount(attemptsCount);
hoDetails.setSuccessCount(successCount);
hoDetails.setSuccessRate(successRate);
int bc = 1;
int pc = 0;
if (dstCellIdBcPair.containsKey(additionalMeasurements.getName())) {
bc = dstCellIdBcPair.get(additionalMeasurements.getName()) + 1;
}
if (dstCellIdPcPair.containsKey(additionalMeasurements.getName())) {
pc = dstCellIdPcPair.get(additionalMeasurements.getName());
}
hoDetails.setBadCount(bc);
hoDetails.setPoorCount(pc);
hoDetailsList.add(hoDetails);
if (bc >= badCountThreshold) {
LteCell lteCell = new LteCell();
lteCell.setBlacklisted("true");
lteCell.setCid(additionalMeasurements.getName());
lteCell.setPlmnId(additionalMeasurements.getHashMap().get("networkId"));
lteCell.setPnfName(pmNotification.getEvent().getCommonEventHeader().getReportingEntityName());
lteCellList.add(lteCell);
hoDetailsList.remove(hoDetails);
}
} else if (successRate > poorThreshold) { // good neighbor
HoDetails hoDetails = new HoDetails();
hoDetails.setDstCellId(additionalMeasurements.getName());
hoDetails.setAttemptsCount(attemptsCount);
hoDetails.setSuccessCount(successCount);
hoDetails.setSuccessRate(successRate);
int pc = 0;
int bc = 0;
hoDetails.setBadCount(bc);
hoDetails.setPoorCount(pc);
hoDetailsList.add(hoDetails);
log.info("good neighbor {}", additionalMeasurements.getName());
}
}
if (!lteCellList.isEmpty()) {
log.info("triggering policy to remove bad neighbors");
Flag policyTriggerFlag = BeanUtil.getBean(Flag.class);
while (policyTriggerFlag.getHolder().equals("CHILD")) {
Thread.sleep(100);
}
policyTriggerFlag.setHolder("PM");
result = sendAnrUpdateToPolicy(pmNotification, lteCellList);
log.info("Sent ANR update to policy {}", result);
policyTriggerFlag.setHolder("NONE");
}
if (!hoDetailsList.isEmpty() && newEntryFlag) {
result = saveToHandOverMetrics(hoDetailsList, srcCellId);
log.debug("save HO metrics result {} ", result);
} else if (!hoDetailsList.isEmpty()) {
String hoDetailsString = null;
ObjectMapper mapper = new ObjectMapper();
try {
hoDetailsString = mapper.writeValueAsString(hoDetailsList);
} catch (Exception e) {
log.error("Error in writing handover metrics json ", e);
return false;
}
hoMetricsComponent.update(hoDetailsString, srcCellId);
}
} catch (Exception e) {
log.error("Error in handlePmNotifications ", e);
return false;
}
return true;
}
private Boolean sendAnrUpdateToPolicy(PmNotification pmNotification, List<LteCell> lteCellList) {
ObjectMapper mapper = new ObjectMapper();
try {
mapper.setSerializationInclusion(Include.NON_NULL);
ArrayList<Configurations> configurations = new ArrayList<>();
String cellId = pmNotification.getEvent().getCommonEventHeader().getSourceName();
Configurations configuration = new Configurations(
new Data(new FapService(cellId, null,
new CellConfig(new Lte(new Ran(new Common(cellId),
new NeighborListInUse(null, lteCellList, String.valueOf(lteCellList.size()))))))),
null);
configurations.add(configuration);
Payload payload = new Payload(configurations);
log.info("payload : {}", payload);
String anrUpdateString = mapper.writeValueAsString(payload);
ChildThreadUtils childUtils = new ChildThreadUtils(ConfigPolicy.getInstance(), new PnfUtils(),
new PolicyDmaapClient(new DmaapUtils(), Configuration.getInstance()), new HoMetricsComponent());
String requestId = UUID.randomUUID().toString();
String notification = childUtils.getNotificationString(
pmNotification.getEvent().getCommonEventHeader().getReportingEntityName(), requestId,
anrUpdateString, System.currentTimeMillis(), "ModifyConfigANR");
log.info("Policy Notification: {}", notification);
Boolean result = policyDmaapClient.sendNotificationToPolicy(notification);
log.info("send notification to policy result {} ", result);
} catch (Exception e) {
log.error("Exception in sending Anr update to policy ", e);
return false;
}
return true;
}
private Boolean saveToHandOverMetrics(List<HoDetails> hoDetailsList, String srcCellId) {
ObjectMapper mapper = new ObjectMapper();
String hoDetailsString = null;
try {
hoDetailsString = mapper.writeValueAsString(hoDetailsList);
} catch (Exception e) {
log.error("Error in writing handover metrics json ", e);
return false;
}
HandOverMetrics handOverMetrics = new HandOverMetrics();
handOverMetrics.setHoDetails(hoDetailsString);
handOverMetrics.setSrcCellId(srcCellId);
HandOverMetricsRepository handOverMetricsRepository = BeanUtil.getBean(HandOverMetricsRepository.class);
handOverMetricsRepository.save(handOverMetrics);
return true;
}
}
|
