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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.openecomp.core.utilities.deserializers;
import org.onap.sdc.tosca.datatypes.model.RequirementDefinition;
import com.google.gson.JsonArray;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import com.google.gson.JsonPrimitive;
import java.lang.reflect.Type;
import java.util.Objects;
import java.util.Optional;
public class RequirementDefinitionDeserializer implements JsonDeserializer<RequirementDefinition> {
private static final String CAPABILITY = "capability";
private static final String NODE = "node";
private static final String RELATIONSHIP = "relationship";
private static final String OCCURRENCES = "occurrences";
@Override
public RequirementDefinition deserialize(JsonElement jsonElement, Type type,
JsonDeserializationContext jsonDeserializationContext) {
JsonObject jsonObject = jsonElement.getAsJsonObject();
RequirementDefinition requirementDefinition = new RequirementDefinition();
setRequirementValues(jsonObject, requirementDefinition);
Optional<Object[]> occurrences = handleOccurrences(jsonObject);
occurrences.ifPresent(requirementDefinition::setOccurrences);
return requirementDefinition;
}
private void setRequirementValues(JsonObject jsonObject,
RequirementDefinition requirementDefinition) {
JsonElement capabilityElement = jsonObject.get(CAPABILITY);
if (!Objects.isNull(capabilityElement)) {
requirementDefinition.setCapability(capabilityElement.getAsString());
}
JsonElement nodeElement = jsonObject.get(NODE);
if (!Objects.isNull(nodeElement)) {
requirementDefinition.setNode(nodeElement.getAsString());
}
JsonElement relationshipElement = jsonObject.get(RELATIONSHIP);
if (!Objects.isNull(relationshipElement)) {
requirementDefinition.setRelationship(relationshipElement.getAsString());
}
}
private Optional<Object[]> handleOccurrences(JsonObject jsonObject) {
JsonElement occurrencesElement = jsonObject.get(OCCURRENCES);
if(Objects.isNull(occurrencesElement)){
return Optional.empty();
}
JsonArray occurrences = occurrencesElement.getAsJsonArray();
Object[] fixedOccurrences = new Object[occurrences.size()];
for (int i = 0; i < occurrences.size(); i++) {
JsonElement currElement = occurrences.get(i);
// values inside occurrences array can be either String or Integer
if (currElement.isJsonPrimitive()) {
JsonPrimitive jsonPrimitive = currElement.getAsJsonPrimitive();
if (jsonPrimitive.isNumber()) {
fixedOccurrences[i] = jsonPrimitive.getAsNumber().intValue();
} else {
fixedOccurrences[i] = jsonPrimitive.getAsString();
}
}
}
return Optional.of(fixedOccurrences);
}
}
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