LoadsVariationJsonDeserializer.java
/**
* Copyright (c) 2024, RTE (http://www.rte-france.com/)
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
* SPDX-License-Identifier: MPL-2.0
*/
package com.powsybl.dynawo.margincalculation.loadsvariation.supplier;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
import com.powsybl.commons.json.JsonUtil;
import com.powsybl.dynawo.margincalculation.loadsvariation.LoadsVariation;
import com.powsybl.dynawo.margincalculation.loadsvariation.LoadsVariationBuilder;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.function.Supplier;
/**
* @author Laurent Issertial {@literal <laurent.issertial at rte-france.com>}
*/
public class LoadsVariationJsonDeserializer extends StdDeserializer<List<LoadsVariation>> {
private final transient Supplier<LoadsVariationBuilder> builderConstructor;
public LoadsVariationJsonDeserializer(Supplier<LoadsVariationBuilder> builderConstructor) {
super(List.class);
this.builderConstructor = builderConstructor;
}
@Override
public List<LoadsVariation> deserialize(JsonParser parser, DeserializationContext context) {
List<LoadsVariationBuilder> modelConfigList = new ArrayList<>();
JsonUtil.parseObject(parser, name -> {
if (name.equals("variations")) {
JsonUtil.parseObjectArray(parser, modelConfigList::add, this::parseLoadsVariationBuilder);
return true;
}
return false;
});
return modelConfigList.stream()
.map(LoadsVariationBuilder::build)
.filter(Objects::nonNull)
.toList();
}
private LoadsVariationBuilder parseLoadsVariationBuilder(JsonParser parser) {
LoadsVariationBuilder loadsVariationBuilder = builderConstructor.get();
JsonUtil.parseObject(parser, name -> {
boolean handled = true;
switch (name) {
case "loadsIds" -> loadsVariationBuilder.loads(JsonUtil.parseStringArray(parser));
case "variationValue" -> {
parser.nextToken();
loadsVariationBuilder.variationValue(parser.getDoubleValue());
}
default -> handled = false;
}
return handled;
});
return loadsVariationBuilder;
}
}