1 /*******************************************************************************
2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2022 Huawei Canada Limited.
6 * ==============================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
20 *******************************************************************************/
22 package org.onap.slice.analysis.ms.dmaap;
24 import com.google.gson.JsonArray;
25 import com.google.gson.JsonElement;
26 import com.google.gson.JsonObject;
27 import com.google.gson.JsonParser;
28 import org.onap.slice.analysis.ms.models.Configuration;
29 import org.onap.slice.analysis.ms.service.ccvpn.BandwidthEvaluator;
30 import org.onap.slice.analysis.ms.service.ccvpn.Event;
31 import org.onap.slice.analysis.ms.service.ccvpn.SimpleEvent;
32 import org.springframework.beans.factory.annotation.Autowired;
33 import org.springframework.stereotype.Component;
35 import javax.annotation.PostConstruct;
38 * Handles AAI-EVENT from dmaap
41 public class AaiEventNotificationCallback implements NotificationCallback {
43 private static final String EVENT_HEADER = "event-header";
44 private static final String ACTION = "action";
45 private static final String ENTITY_TYPE = "entity-type";
46 private static final String SOURCE_NAME = "source-name";
47 private static final String ENTITY = "entity";
48 private final JsonParser parser = new JsonParser();
49 private Configuration configuration;
50 private String aaiNotifTargetAction;
51 private String aaiNotifTargetSource;
52 private String aaiNotifTargetEntity;
55 BandwidthEvaluator bandwidthEvaluator;
59 configuration = Configuration.getInstance();
60 aaiNotifTargetAction = configuration.getAaiNotifTargetAction();
61 aaiNotifTargetSource = configuration.getAaiNotifTargetSource();
62 aaiNotifTargetEntity = configuration.getAaiNotifTargetEntity();
66 public void activateCallBack(String msg) {
67 handleNotification(msg);
70 private void handleNotification(String msg) {
71 JsonElement jsonElement = parser.parse(msg);
72 if (jsonElement.isJsonObject()){
73 //handle a single AAI_EVENT
74 handleMsgJsonObject(jsonElement.getAsJsonObject());
75 } else if (jsonElement.isJsonArray()){
76 //handle a series of AAI_EVENT
77 JsonArray jsonArray = jsonElement.getAsJsonArray();
78 for (int i=0,e=jsonArray.size(); i<e; i++){
79 handleMsgJsonObject(jsonArray.get(i).getAsJsonObject());
84 private void handleMsgJsonObject(JsonObject jsonObject){
85 JsonObject header = jsonObject.get(EVENT_HEADER).getAsJsonObject();
86 if (header.has(ACTION) && header.get(ACTION).getAsString().equals(aaiNotifTargetAction)) {
87 if (header.has(ENTITY_TYPE) && header.get(ENTITY_TYPE).getAsString().equals(aaiNotifTargetEntity)){
88 if (header.has(SOURCE_NAME) && header.get(SOURCE_NAME).getAsString().equals(aaiNotifTargetSource)) {
89 JsonObject body = jsonObject.get(ENTITY).getAsJsonObject();
90 Event event = new SimpleEvent<>(SimpleEvent.Type.ONDEMAND_CHECK, body);
91 bandwidthEvaluator.post(event);