1 /*******************************************************************************
2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2022 Huawei Canada Limited.
6 * Copyright (C) 2022 CTC, Inc.
7 * ==============================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END=========================================================
21 *******************************************************************************/
23 package org.onap.slice.analysis.ms.dmaap;
25 import com.google.gson.JsonArray;
26 import com.google.gson.JsonElement;
27 import com.google.gson.JsonObject;
28 import com.google.gson.JsonParser;
29 import org.onap.slice.analysis.ms.models.Configuration;
30 import org.onap.slice.analysis.ms.service.ccvpn.BandwidthEvaluator;
31 import org.onap.slice.analysis.ms.service.ccvpn.Event;
32 import org.onap.slice.analysis.ms.service.ccvpn.SimpleEvent;
33 import org.slf4j.Logger;
34 import org.slf4j.LoggerFactory;
35 import org.springframework.beans.factory.annotation.Autowired;
36 import org.springframework.stereotype.Component;
38 import javax.annotation.PostConstruct;
41 * Handles AAI-EVENT from dmaap
44 public class AaiEventNotificationCallback implements NotificationCallback {
46 private static Logger logger = LoggerFactory.getLogger(AaiEventNotificationCallback.class);
47 private static final String EVENT_HEADER = "event-header";
48 private static final String ACTION = "action";
49 private static final String ENTITY_TYPE = "entity-type";
50 private static final String SOURCE_NAME = "source-name";
51 private static final String ENTITY = "entity";
52 private final JsonParser parser = new JsonParser();
53 private Configuration configuration;
54 private String aaiNotifTargetAction;
55 private String aaiNotifTargetSource;
56 private String aaiNotifTargetEntity;
59 BandwidthEvaluator bandwidthEvaluator;
63 configuration = Configuration.getInstance();
64 aaiNotifTargetAction = configuration.getAaiNotifTargetAction();
65 aaiNotifTargetSource = configuration.getAaiNotifTargetSource();
66 aaiNotifTargetEntity = configuration.getAaiNotifTargetEntity();
70 public void activateCallBack(String msg) {
71 handleNotification(msg);
74 private void handleNotification(String msg) {
75 JsonElement jsonElement = parser.parse(msg);
76 if (jsonElement.isJsonObject()){
77 //handle a single AAI_EVENT
78 logger.debug("Handle a single aai-event");
79 handleMsgJsonObject(jsonElement.getAsJsonObject());
80 } else if (jsonElement.isJsonArray()){
81 //handle a series of AAI_EVENT
82 logger.debug("Handle a series of aai-event");
83 JsonArray jsonArray = jsonElement.getAsJsonArray();
84 for (int i=0,e=jsonArray.size(); i<e; i++){
85 if (jsonArray.get(i).isJsonPrimitive()){
86 // Deal with a batch of event message
87 handleNotification(jsonArray.get(i).getAsString());
89 handleMsgJsonObject(jsonArray.get(i).getAsJsonObject());
96 private void handleMsgJsonObject(JsonObject jsonObject){
97 JsonObject header = jsonObject.get(EVENT_HEADER).getAsJsonObject();
98 if (!header.has(ACTION) || !header.get(ACTION).getAsString().equals(aaiNotifTargetAction)){
101 if (!header.has(ENTITY_TYPE) || !header.get(ENTITY_TYPE).getAsString().equals(aaiNotifTargetEntity)){
104 if (!header.has(SOURCE_NAME) || !header.get(SOURCE_NAME).getAsString().equals(aaiNotifTargetSource)){
107 JsonObject entity = jsonObject.get(ENTITY).getAsJsonObject();
108 JsonObject body = getNestedJsonObject(entity, aaiNotifTargetEntity);
109 logger.info("AAI-EVENT entity object {}", body);
113 Event event = new SimpleEvent<>(SimpleEvent.Type.ONDEMAND_CHECK, body);
114 bandwidthEvaluator.post(event);
117 private JsonObject getNestedJsonObject(JsonObject obj, String target){
118 for (String k: obj.keySet()){
119 if (k.equals(target)){
121 return obj.getAsJsonArray(k).get(0).getAsJsonObject();
123 if (obj.get(k).isJsonObject()) {
124 return getNestedJsonObject(obj.getAsJsonObject(k), target);
125 } else if (obj.get(k).isJsonArray()){
126 JsonElement tmp = obj.getAsJsonArray(k).get(0);
127 if (tmp.isJsonObject()){
128 return getNestedJsonObject(tmp.getAsJsonObject(), target);