engine-d/src/main/java/org/onap/holmes/dsa/dmaappolling/DMaaPResponseUtil.java

   1 /*
   2  * Copyright 2017-2020 ZTE Corporation.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.onap.holmes.dsa.dmaappolling;
  17
  18 import com.google.gson.JsonObject;
  19 import com.google.gson.JsonParser;
  20 import org.jvnet.hk2.annotations.Service;
  21 import org.onap.holmes.common.api.stat.VesAlarm;
  22 import org.onap.holmes.common.api.stat.AlarmAdditionalField;
  23 import com.google.gson.Gson;
  24
  25 import java.util.Map;
  26 import java.util.TimeZone;
  27 import java.util.Collections;
  28 import java.util.HashMap;
  29 import java.util.List;
  30
  31 import static org.onap.holmes.common.utils.GsonUtil.*;
  32
  33 @Service
  34 public class DMaaPResponseUtil {
  35
  36     public VesAlarm convertJsonToVesAlarm(String responseJson) {
  37         JsonObject jsonNode = JsonParser.parseString(responseJson).getAsJsonObject();
  38
  39         VesAlarm vesAlarm = new VesAlarm();
  40
  41         JsonObject eventJson = JsonParser.parseString(jsonNode.get("event").toString()).getAsJsonObject();
  42         JsonObject commonEventHeaderJson = JsonParser.parseString(eventJson.get("commonEventHeader").toString())
  43                 .getAsJsonObject();
  44         convertCommonEventHeaderJsonToEvent(commonEventHeaderJson, vesAlarm);
  45
  46         JsonObject faultFieldsJson = JsonParser.parseString(eventJson.get("faultFields").toString())
  47                 .getAsJsonObject();
  48         convertFaultFieldsJsonToEvent(faultFieldsJson, vesAlarm);
  49         return vesAlarm;
  50     }
  51
  52     private void convertCommonEventHeaderJsonToEvent(JsonObject commonEventHeaderJson,
  53                                                      VesAlarm vesAlarm) {
  54         vesAlarm.setDomain(getAsString(commonEventHeaderJson, "domain"));
  55         vesAlarm.setEventId(getAsString(commonEventHeaderJson, "eventId"));
  56         vesAlarm.setEventName(getAsString(commonEventHeaderJson, "eventName"));
  57         vesAlarm.setAlarmIsCleared(vesAlarm.getEventName().endsWith("Cleared") ? 1 : 0);
  58         vesAlarm.setEventType(getAsString(commonEventHeaderJson, "eventType"));
  59         if (commonEventHeaderJson.has("internalHeaderFields")) {
  60             vesAlarm.setInternalHeaderFields(commonEventHeaderJson.getAsJsonObject("internalHeaderFields").toString());
  61         }
  62         vesAlarm.setLastEpochMicrosec(getAsLong(commonEventHeaderJson, "lastEpochMicrosec"));
  63         vesAlarm.setNfcNamingCode(getAsString(commonEventHeaderJson, "nfcNamingCode"));
  64         vesAlarm.setNfNamingCode(getAsString(commonEventHeaderJson, "nfNamingCode"));
  65         vesAlarm.setPriority(getAsString(commonEventHeaderJson, "priority"));
  66         vesAlarm.setReportingEntityId(getAsString(commonEventHeaderJson, "reportingEntityId"));
  67         vesAlarm.setReportingEntityName(getAsString(commonEventHeaderJson, "reportingEntityName"));
  68         vesAlarm.setSequence(getAsInt(commonEventHeaderJson, "sequence"));
  69         vesAlarm.setSourceId(getAsString(commonEventHeaderJson, "sourceId"));
  70         vesAlarm.setSourceName(getAsString(commonEventHeaderJson, "sourceName"));
  71         vesAlarm.setStartEpochMicrosec(getAsLong(commonEventHeaderJson, "startEpochMicrosec"));
  72         vesAlarm.setVersion(getAsString(commonEventHeaderJson, "version"));
  73         vesAlarm.setNfVendorName(getAsString(commonEventHeaderJson, "nfVendorName"));
  74         if (commonEventHeaderJson.has("timeZoneOffset")) {
  75             TimeZone timeZone = TimeZone.getTimeZone(getAsString(commonEventHeaderJson, "timeZoneOffset"));
  76             vesAlarm.setTimeZoneOffset(timeZone);
  77         }
  78         if (commonEventHeaderJson.has("vesEventListenerVersion")) {
  79             vesAlarm.setVesEventListenerVersion(getAsString(commonEventHeaderJson, "vesEventListenerVersion"));
  80         }
  81     }
  82
  83     private void convertFaultFieldsJsonToEvent(JsonObject faultFieldsJson, VesAlarm vesAlarm) {
  84         vesAlarm.setAlarmCondition(getAsString(faultFieldsJson, "alarmCondition"));
  85         vesAlarm.setAlarmInterfaceA(getAsString(faultFieldsJson, "alarmInterfaceA"));
  86         vesAlarm.setEventCategory(getAsString(faultFieldsJson, "eventCategory"));
  87         vesAlarm.setEventSeverity(getAsString(faultFieldsJson, "eventSeverity"));
  88         vesAlarm.setEventSourceType(getAsString(faultFieldsJson, "eventSourceType"));
  89         vesAlarm.setFaultFieldsVersion(getAsString(faultFieldsJson, "faultFieldsVersion"));
  90         vesAlarm.setSpecificProblem(getAsString(faultFieldsJson, "specificProblem"));
  91         vesAlarm.setVfStatus(getAsString(faultFieldsJson, "vfStatus"));
  92         //Support VES Specificatin 5.4
  93         if ("2.0".equals(vesAlarm.getFaultFieldsVersion())) {
  94             List<AlarmAdditionalField> alarmAdditionalFieldList = getListElementByNode(faultFieldsJson, "alarmAdditionalInformation");
  95             Map<String, String> alarmAdditionalInformation = new HashMap<String, String>();
  96             for (AlarmAdditionalField field : alarmAdditionalFieldList) {
  97                 alarmAdditionalInformation.put(field.getName(), field.getValue());
  98             }
  99             vesAlarm.setAlarmAdditionalInformation(alarmAdditionalInformation);
 100         } //Support VES Specification 7.1
 101         else if (faultFieldsJson.has("alarmAdditionalInformation")) {
 102             JsonObject alarmAddInfo = JsonParser.parseString(faultFieldsJson.get("alarmAdditionalInformation").toString()).getAsJsonObject();
 103             Gson gson = new Gson();
 104             Map map = gson.fromJson(alarmAddInfo, Map.class);
 105             vesAlarm.setAlarmAdditionalInformation(map);
 106         }
 107     }
 108
 109     private List<AlarmAdditionalField> getListElementByNode(JsonObject jsonNode, String name) {
 110         if (jsonNode.has(name) && !jsonNode.get(name).isJsonNull()) {
 111             return jsonToList(jsonNode.get(name).toString(), AlarmAdditionalField.class);
 112         }
 113         return Collections.emptyList();
 114     }
 115 }