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/*
* Copyright (C) 2021 Samsung Electronics
* 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
*/
package org.onap.rapp.datacollector.service;
import static java.util.Objects.nonNull;
import java.util.Optional;
import org.onap.rapp.datacollector.entity.ves.CommonEventHeader;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
public abstract class ParserAbstractClass {
public static final String VES_EVENT_UNIQUE_ELEMENT = "measurementFields";
public static final String FILE_READY_EVENT_UNIQUE_ELEMENT = "perf3gppFields";
public static final String EVENT_JSON_ELEMENT_NAME = "event";
public static final String COMMON_EVENT_HEADER = "commonEventHeader";
/**
* Scans the Json Object if contains VES_EVENT_UNIQUE_ELEMENT
*
* @param obj json object
* @return true=it is VES event, false=not VES event
*/
protected boolean isVesEvent(JsonObject obj) {
return getEventJsonObject(obj).filter(jsonObject -> jsonObject.has(VES_EVENT_UNIQUE_ELEMENT)).isPresent();
}
/**
* Scans the Json Object if contains FILE_READY_EVENT_UNIQUE_ELEMENT
*
* @param obj json object
* @return true=it is FileReadyEvent event, false=not FileReadyEvent
*/
protected boolean isFileReadyEvent(JsonObject obj) {
return getEventJsonObject(obj).filter(jsonObject -> jsonObject.has(FILE_READY_EVENT_UNIQUE_ELEMENT)).isPresent();
}
/**
* Gets Event json element from incoming json
*
* @param jsonElement top json elemnt
* @return Event Json element
*/
protected static Optional<JsonObject> getEventJsonObject(JsonElement jsonElement) {
JsonObject obj = jsonElement.getAsJsonObject();
return Optional.ofNullable(obj.getAsJsonObject(EVENT_JSON_ELEMENT_NAME));
}
/**
* Gets CommonEventHeader from json
*
* @param obj Event json element
* @param jsonDeserializationContext json context
* @return CommonEventHeader object from json object
*/
protected static CommonEventHeader getHeaderJsonObject(JsonObject obj, JsonDeserializationContext jsonDeserializationContext) {
if (nonNull(obj) && obj.has(COMMON_EVENT_HEADER)) {
JsonObject headerJson = obj.getAsJsonObject(COMMON_EVENT_HEADER);
return jsonDeserializationContext.deserialize(headerJson, CommonEventHeader.class);
} else {
throw new JsonParseException("Common header not found");
}
}
}
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