SystemParticipantSource.java

/*
 * © 2021. TU Dortmund University,
 * Institute of Energy Systems, Energy Efficiency and Energy Economics,
 * Research group Distribution grid planning and operation
*/
package edu.ie3.datamodel.io.source;

import edu.ie3.datamodel.exceptions.SourceException;
import edu.ie3.datamodel.exceptions.SystemParticipantsException;
import edu.ie3.datamodel.io.factory.EntityFactory;
import edu.ie3.datamodel.io.factory.input.NodeAssetInputEntityData;
import edu.ie3.datamodel.io.factory.input.participant.*;
import edu.ie3.datamodel.models.input.NodeInput;
import edu.ie3.datamodel.models.input.OperatorInput;
import edu.ie3.datamodel.models.input.container.SystemParticipants;
import edu.ie3.datamodel.models.input.system.*;
import edu.ie3.datamodel.models.input.system.type.*;
import edu.ie3.datamodel.models.input.thermal.ThermalBusInput;
import edu.ie3.datamodel.models.input.thermal.ThermalStorageInput;
import edu.ie3.datamodel.utils.Try;
import java.util.*;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.Stream;

/**
 * Implementation that provides the capability to build entities of type {@link
 * SystemParticipantInput} as well as {@link SystemParticipants} container.
 */
public class SystemParticipantSource extends EntitySource {

  private static final String THERMAL_STORAGE = "thermalstorage";
  private static final String THERMAL_BUS = "thermalbus";

  // general fields
  private final TypeSource typeSource;
  private final RawGridSource rawGridSource;
  private final ThermalSource thermalSource;

  // factories
  private final BmInputFactory bmInputFactory;
  private final ChpInputFactory chpInputFactory;
  private final EvInputFactory evInputFactory;
  private final FixedFeedInInputFactory fixedFeedInInputFactory;
  private final HpInputFactory hpInputFactory;
  private final LoadInputFactory loadInputFactory;
  private final PvInputFactory pvInputFactory;
  private final StorageInputFactory storageInputFactory;
  private final WecInputFactory wecInputFactory;
  private final EvcsInputFactory evcsInputFactory;
  private final EmInputFactory emInputFactory;

  public SystemParticipantSource(
      TypeSource typeSource,
      ThermalSource thermalSource,
      RawGridSource rawGridSource,
      DataSource dataSource) {

    this.typeSource = typeSource;
    this.rawGridSource = rawGridSource;
    this.thermalSource = thermalSource;
    this.dataSource = dataSource;

    // init factories
    this.bmInputFactory = new BmInputFactory();
    this.chpInputFactory = new ChpInputFactory();
    this.evInputFactory = new EvInputFactory();
    this.fixedFeedInInputFactory = new FixedFeedInInputFactory();
    this.hpInputFactory = new HpInputFactory();
    this.loadInputFactory = new LoadInputFactory();
    this.pvInputFactory = new PvInputFactory();
    this.storageInputFactory = new StorageInputFactory();
    this.wecInputFactory = new WecInputFactory();
    this.evcsInputFactory = new EvcsInputFactory();
    this.emInputFactory = new EmInputFactory();
  }

  /**
   * Should return either a consistent instance of {@link SystemParticipants} or throw a {@link
   * SourceException}. The decision to throw a {@link SourceException} instead of returning the
   * incomplete {@link SystemParticipants} instance is motivated by the fact, that a {@link
   * SystemParticipants} is a container instance that depends on several other entities. Without
   * being complete, it is useless for further processing.
   *
   * <p>Hence, whenever at least one entity {@link SystemParticipants} depends on cannot be
   * provided, {@link SourceException} should be thrown. The thrown exception should provide enough
   * information to debug the error and fix the persistent data that has been failed to processed.
   *
   * <p>Furthermore, it is expected, that the specific implementation of this method ensures not
   * only the completeness of the resulting {@link SystemParticipants} instance, but also its
   * validity e.g. in the sense that not duplicate UUIDs exist within all entities contained in the
   * returning instance.
   *
   * @return either a valid, complete {@link SystemParticipants} or throws a {@link SourceException}
   */
  public SystemParticipants getSystemParticipants() throws SourceException {

    // read all needed entities
    /// start with types and operators
    Set<OperatorInput> operators = typeSource.getOperators();
    Set<BmTypeInput> bmTypes = typeSource.getBmTypes();
    Set<ChpTypeInput> chpTypes = typeSource.getChpTypes();
    Set<EvTypeInput> evTypes = typeSource.getEvTypes();
    Set<HpTypeInput> hpTypes = typeSource.getHpTypes();
    Set<StorageTypeInput> storageTypes = typeSource.getStorageTypes();
    Set<WecTypeInput> wecTypes = typeSource.getWecTypes();

    /// go on with the thermal assets
    Set<ThermalBusInput> thermalBuses = thermalSource.getThermalBuses(operators);
    Set<ThermalStorageInput> thermalStorages =
        thermalSource.getThermalStorages(operators, thermalBuses);

    /// go on with the nodes
    Set<NodeInput> nodes = rawGridSource.getNodes(operators);
    Try<Set<FixedFeedInInput>> fixedFeedInInputs = Try.of(() -> getFixedFeedIns(nodes, operators));
    Try<Set<PvInput>> pvInputs = Try.of(() -> getPvPlants(nodes, operators));
    Try<Set<LoadInput>> loads = Try.of(() -> getLoads(nodes, operators));
    Try<Set<BmInput>> bmInputs = Try.of(() -> getBmPlants(nodes, operators, bmTypes));
    Try<Set<StorageInput>> storages = Try.of(() -> getStorages(nodes, operators, storageTypes));
    Try<Set<WecInput>> wecInputs = Try.of(() -> getWecPlants(nodes, operators, wecTypes));
    Try<Set<EvInput>> evs = Try.of(() -> getEvs(nodes, operators, evTypes));
    Try<Set<EvcsInput>> evcs = Try.of(() -> getEvCS(nodes, operators));
    Try<Set<ChpInput>> chpInputs =
        Try.of(() -> getChpPlants(nodes, operators, chpTypes, thermalBuses, thermalStorages));
    Try<Set<HpInput>> hpInputs =
        Try.of(() -> getHeatPumps(nodes, operators, hpTypes, thermalBuses));
    Try<Set<EmInput>> emInputs = Try.of(() -> getEmSystems(nodes, operators));

    List<SourceException> exceptions =
        (List<SourceException>)
            Try.getExceptions(
                fixedFeedInInputs,
                pvInputs,
                loads,
                bmInputs,
                storages,
                wecInputs,
                evs,
                evcs,
                chpInputs,
                hpInputs,
                emInputs);

    if (exceptions.size() > 0) {
      throw new SystemParticipantsException(
          exceptions.size() + " error(s) occurred while initializing system participants. ",
          exceptions);
    } else {
      // if everything is fine, return a system participants container
      return new SystemParticipants(
          bmInputs.getData().get(),
          chpInputs.getData().get(),
          evcs.getData().get(),
          evs.getData().get(),
          fixedFeedInInputs.getData().get(),
          hpInputs.getData().get(),
          loads.getData().get(),
          pvInputs.getData().get(),
          storages.getData().get(),
          wecInputs.getData().get(),
          emInputs.getData().get());
    }
  }

  /**
   * Returns a unique set of {@link FixedFeedInInput} instances.
   *
   * <p>This set has to be unique in the sense of object uniqueness but also in the sense of {@link
   * java.util.UUID} uniqueness of the provided {@link FixedFeedInInput} which has to be checked
   * manually, as {@link FixedFeedInInput#equals(Object)} is NOT restricted on the uuid of {@link
   * FixedFeedInInput}.
   *
   * @return a set of object and uuid unique {@link FixedFeedInInput} entities
   */
  public Set<FixedFeedInInput> getFixedFeedIns() throws SourceException {
    Set<OperatorInput> operators = typeSource.getOperators();
    return getFixedFeedIns(rawGridSource.getNodes(operators), operators);
  }

  /**
   * Returns a set of {@link FixedFeedInInput} instances. This set has to be unique in the sense of
   * object uniqueness but also in the sense of {@link java.util.UUID} uniqueness of the provided
   * {@link FixedFeedInInput} which has to be checked manually, as {@link
   * FixedFeedInInput#equals(Object)} is NOT restricted on the uuid of {@link FixedFeedInInput}.
   *
   * <p>In contrast to {@link #getFixedFeedIns()} this method provides the ability to pass in an
   * already existing set of {@link NodeInput} and {@link OperatorInput} entities, the {@link
   * FixedFeedInInput} instances depend on. Doing so, already loaded nodes can be recycled to
   * improve performance and prevent unnecessary loading operations.
   *
   * <p>If something fails during the creation process a {@link SourceException} is thrown, else a
   * set with all entities that has been able to be build is returned.
   *
   * @param operators a set of object and uuid unique {@link OperatorInput} that should be used for
   *     the returning instances
   * @param nodes a set of object and uuid unique {@link NodeInput} entities
   * @return a set of object and uuid unique {@link FixedFeedInInput} entities
   */
  public Set<FixedFeedInInput> getFixedFeedIns(Set<NodeInput> nodes, Set<OperatorInput> operators)
      throws SourceException {
    return Try.scanCollection(
            buildNodeAssetEntities(
                FixedFeedInInput.class, fixedFeedInInputFactory, nodes, operators),
            FixedFeedInInput.class)
        .getOrThrow(SourceException.class);
  }

  /**
   * Returns a unique set of {@link PvInput} instances.
   *
   * <p>This set has to be unique in the sense of object uniqueness but also in the sense of {@link
   * java.util.UUID} uniqueness of the provided {@link PvInput} which has to be checked manually, as
   * {@link PvInput#equals(Object)} is NOT restricted on the uuid of {@link PvInput}.
   *
   * @return a set of object and uuid unique {@link PvInput} entities
   */
  public Set<PvInput> getPvPlants() throws SourceException {
    Set<OperatorInput> operators = typeSource.getOperators();
    return getPvPlants(rawGridSource.getNodes(operators), operators);
  }

  /**
   * Returns a set of {@link PvInput} instances. This set has to be unique in the sense of object
   * uniqueness but also in the sense of {@link java.util.UUID} uniqueness of the provided {@link
   * PvInput} which has to be checked manually, as {@link PvInput#equals(Object)} is NOT restricted
   * on the uuid of {@link PvInput}.
   *
   * <p>In contrast to {@link #getPvPlants()} this method provides the ability to pass in an already
   * existing set of {@link NodeInput} and {@link OperatorInput} entities, the {@link PvInput}
   * instances depend on. Doing so, already loaded nodes can be recycled to improve performance and
   * prevent unnecessary loading operations.
   *
   * <p>If something fails during the creation process a {@link SourceException} is thrown, else a
   * set with all entities that has been able to be build is returned.
   *
   * @param operators a set of object and uuid unique {@link OperatorInput} that should be used for
   *     the returning instances
   * @param nodes a set of object and uuid unique {@link NodeInput} entities
   * @return a set of object and uuid unique {@link PvInput} entities
   */
  public Set<PvInput> getPvPlants(Set<NodeInput> nodes, Set<OperatorInput> operators)
      throws SourceException {
    return Try.scanCollection(
            buildNodeAssetEntities(PvInput.class, pvInputFactory, nodes, operators), PvInput.class)
        .getOrThrow(SourceException.class);
  }

  /**
   * Returns a unique set of {@link LoadInput} instances.
   *
   * <p>This set has to be unique in the sense of object uniqueness but also in the sense of {@link
   * java.util.UUID} uniqueness of the provided {@link LoadInput} which has to be checked manually,
   * as {@link LoadInput#equals(Object)} is NOT restricted on the uuid of {@link LoadInput}.
   *
   * @return a set of object and uuid unique {@link LoadInput} entities
   */
  public Set<LoadInput> getLoads() throws SourceException {
    Set<OperatorInput> operators = typeSource.getOperators();
    return getLoads(rawGridSource.getNodes(operators), operators);
  }

  /**
   * Returns a set of {@link LoadInput} instances. This set has to be unique in the sense of object
   * uniqueness but also in the sense of {@link java.util.UUID} uniqueness of the provided {@link
   * LoadInput} which has to be checked manually, as {@link LoadInput#equals(Object)} is NOT
   * restricted on the uuid of {@link LoadInput}.
   *
   * <p>In contrast to {@link #getLoads()} this method provides the ability to pass in an already
   * existing set of {@link NodeInput} and {@link OperatorInput} entities, the {@link LoadInput}
   * instances depend on. Doing so, already loaded nodes can be recycled to improve performance and
   * prevent unnecessary loading operations.
   *
   * <p>If something fails during the creation process a {@link SourceException} is thrown, else a
   * set with all entities that has been able to be build is returned.
   *
   * @param operators a set of object and uuid unique {@link OperatorInput} that should be used for
   *     the returning instances
   * @param nodes a set of object and uuid unique {@link NodeInput} entities
   * @return a set of object and uuid unique {@link LoadInput} entities
   */
  public Set<LoadInput> getLoads(Set<NodeInput> nodes, Set<OperatorInput> operators)
      throws SourceException {
    return Try.scanCollection(
            buildNodeAssetEntities(LoadInput.class, loadInputFactory, nodes, operators),
            LoadInput.class)
        .getOrThrow(SourceException.class);
  }

  /**
   * Returns a unique set of {@link EvcsInput} instances.
   *
   * <p>This set has to be unique in the sense of object uniqueness but also in the sense of {@link
   * java.util.UUID} uniqueness of the provided {@link EvcsInput} which has to be checked manually,
   * as {@link EvcsInput#equals(Object)} is NOT restricted on the uuid of {@link EvcsInput}.
   *
   * @return a set of object and uuid unique {@link EvcsInput} entities
   */
  public Set<EvcsInput> getEvCS() throws SourceException {
    Set<OperatorInput> operators = typeSource.getOperators();
    return getEvCS(rawGridSource.getNodes(operators), operators);
  }

  /**
   * Returns a set of {@link EvcsInput} instances. This set has to be unique in the sense of object
   * uniqueness but also in the sense of {@link java.util.UUID} uniqueness of the provided {@link
   * EvcsInput} which has to be checked manually, as {@link EvcsInput#equals(Object)} is NOT
   * restricted on the uuid of {@link EvcsInput}.
   *
   * <p>In contrast to {@link #getEvCS()} this method provides the ability to pass in an already
   * existing set of {@link NodeInput} and {@link OperatorInput} entities, the {@link EvcsInput}
   * instances depend on. Doing so, already loaded nodes can be recycled to improve performance and
   * prevent unnecessary loading operations.
   *
   * <p>If something fails during the creation process a {@link SourceException} is thrown, else a
   * set with all entities that has been able to be build is returned.
   *
   * @param operators a set of object and uuid unique {@link OperatorInput} that should be used for
   *     the returning instances
   * @param nodes a set of object and uuid unique {@link NodeInput} entities
   * @return a set of object and uuid unique {@link EvcsInput} entities
   */
  public Set<EvcsInput> getEvCS(Set<NodeInput> nodes, Set<OperatorInput> operators)
      throws SourceException {
    return Try.scanCollection(
            buildNodeAssetEntities(EvcsInput.class, evcsInputFactory, nodes, operators),
            EvcsInput.class)
        .getOrThrow(SourceException.class);
  }

  /**
   * Returns a unique set of {@link BmInput} instances.
   *
   * <p>This set has to be unique in the sense of object uniqueness but also in the sense of {@link
   * java.util.UUID} uniqueness of the provided {@link BmInput} which has to be checked manually, as
   * {@link BmInput#equals(Object)} is NOT restricted on the uuid of {@link BmInput}.
   *
   * @return a set of object and uuid unique {@link BmInput} entities
   */
  public Set<BmInput> getBmPlants() throws SourceException {
    Set<OperatorInput> operators = typeSource.getOperators();
    return getBmPlants(rawGridSource.getNodes(operators), operators, typeSource.getBmTypes());
  }

  /**
   * Returns a set of {@link BmInput} instances. This set has to be unique in the sense of object
   * uniqueness but also in the sense of {@link java.util.UUID} uniqueness of the provided {@link
   * BmInput} which has to be checked manually, as {@link BmInput#equals(Object)} is NOT restricted
   * on the uuid of {@link BmInput}.
   *
   * <p>In contrast to {@link #getBmPlants()} this method provides the ability to pass in an already
   * existing set of {@link NodeInput}, {@link BmTypeInput} and {@link OperatorInput} entities, the
   * {@link BmInput} instances depend on. Doing so, already loaded nodes can be recycled to improve
   * performance and prevent unnecessary loading operations.
   *
   * <p>If something fails during the creation process a {@link SourceException} is thrown, else a
   * set with all entities that has been able to be build is returned.
   *
   * @param operators a set of object and uuid unique {@link OperatorInput} that should be used for
   *     the returning instances
   * @param nodes a set of object and uuid unique {@link NodeInput} entities
   * @param types a set of object and uuid unique {@link BmTypeInput} entities
   * @return a set of object and uuid unique {@link BmInput} entities
   */
  public Set<BmInput> getBmPlants(
      Set<NodeInput> nodes, Set<OperatorInput> operators, Set<BmTypeInput> types)
      throws SourceException {
    return Try.scanCollection(
            buildTypedSystemParticipantEntities(
                BmInput.class, bmInputFactory, nodes, operators, types),
            BmInput.class)
        .getOrThrow(SourceException.class);
  }

  /**
   * Returns a unique set of {@link StorageInput} instances.
   *
   * <p>This set has to be unique in the sense of object uniqueness but also in the sense of {@link
   * java.util.UUID} uniqueness of the provided {@link StorageInput} which has to be checked
   * manually, as {@link StorageInput#equals(Object)} is NOT restricted on the uuid of {@link
   * StorageInput}.
   *
   * @return a set of object and uuid unique {@link StorageInput} entities
   */
  public Set<StorageInput> getStorages() throws SourceException {
    Set<OperatorInput> operators = typeSource.getOperators();
    return getStorages(rawGridSource.getNodes(operators), operators, typeSource.getStorageTypes());
  }

  /**
   * Returns a set of {@link StorageInput} instances. This set has to be unique in the sense of
   * object uniqueness but also in the sense of {@link java.util.UUID} uniqueness of the provided
   * {@link StorageInput} which has to be checked manually, as {@link StorageInput#equals(Object)}
   * is NOT restricted on the uuid of {@link StorageInput}.
   *
   * <p>In contrast to {@link #getStorages()} this method provides the ability to pass in an already
   * existing set of {@link NodeInput}, {@link StorageTypeInput} and {@link OperatorInput} entities,
   * the {@link StorageInput} instances depend on. Doing so, already loaded nodes can be recycled to
   * improve performance and prevent unnecessary loading operations.
   *
   * <p>If something fails during the creation process a {@link SourceException} is thrown, else a
   * set with all entities that has been able to be build is returned.
   *
   * @param operators a set of object and uuid unique {@link OperatorInput} that should be used for
   *     the returning instances
   * @param nodes a set of object and uuid unique {@link NodeInput} entities
   * @param types a set of object and uuid unique {@link StorageTypeInput} entities
   * @return a set of object and uuid unique {@link StorageInput} entities
   */
  public Set<StorageInput> getStorages(
      Set<NodeInput> nodes, Set<OperatorInput> operators, Set<StorageTypeInput> types)
      throws SourceException {
    return Try.scanCollection(
            buildTypedSystemParticipantEntities(
                StorageInput.class, storageInputFactory, nodes, operators, types),
            StorageInput.class)
        .getOrThrow(SourceException.class);
  }

  /**
   * Returns a unique set of {@link WecInput} instances.
   *
   * <p>This set has to be unique in the sense of object uniqueness but also in the sense of {@link
   * java.util.UUID} uniqueness of the provided {@link WecInput} which has to be checked manually,
   * as {@link WecInput#equals(Object)} is NOT restricted on the uuid of {@link WecInput}.
   *
   * @return a set of object and uuid unique {@link WecInput} entities
   */
  public Set<WecInput> getWecPlants() throws SourceException {
    Set<OperatorInput> operators = typeSource.getOperators();
    return getWecPlants(rawGridSource.getNodes(operators), operators, typeSource.getWecTypes());
  }

  /**
   * Returns a set of {@link WecInput} instances. This set has to be unique in the sense of object
   * uniqueness but also in the sense of {@link java.util.UUID} uniqueness of the provided {@link
   * WecInput} which has to be checked manually, as {@link WecInput#equals(Object)} is NOT
   * restricted on the uuid of {@link WecInput}.
   *
   * <p>In contrast to {@link #getWecPlants()} this method provides the ability to pass in an
   * already existing set of {@link NodeInput}, {@link WecTypeInput} and {@link OperatorInput}
   * entities, the {@link WecInput} instances depend on. Doing so, already loaded nodes can be
   * recycled to improve performance and prevent unnecessary loading operations.
   *
   * <p>If something fails during the creation process a {@link SourceException} is thrown, else a
   * set with all entities that has been able to be build is returned.
   *
   * @param operators a set of object and uuid unique {@link OperatorInput} that should be used for
   *     the returning instances
   * @param nodes a set of object and uuid unique {@link NodeInput} entities
   * @param types a set of object and uuid unique {@link WecTypeInput} entities
   * @return a set of object and uuid unique {@link WecInput} entities
   */
  public Set<WecInput> getWecPlants(
      Set<NodeInput> nodes, Set<OperatorInput> operators, Set<WecTypeInput> types)
      throws SourceException {
    return Try.scanCollection(
            buildTypedSystemParticipantEntities(
                WecInput.class, wecInputFactory, nodes, operators, types),
            WecInput.class)
        .getOrThrow(SourceException.class);
  }

  /**
   * Returns a unique set of {@link EvInput} instances.
   *
   * <p>This set has to be unique in the sense of object uniqueness but also in the sense of {@link
   * java.util.UUID} uniqueness of the provided {@link EvInput} which has to be checked manually, as
   * {@link EvInput#equals(Object)} is NOT restricted on the uuid of {@link EvInput}.
   *
   * @return a set of object and uuid unique {@link EvInput} entities
   */
  public Set<EvInput> getEvs() throws SourceException {
    Set<OperatorInput> operators = typeSource.getOperators();
    return getEvs(rawGridSource.getNodes(operators), operators, typeSource.getEvTypes());
  }

  /**
   * Returns a set of {@link EvInput} instances. This set has to be unique in the sense of object
   * uniqueness but also in the sense of {@link java.util.UUID} uniqueness of the provided {@link
   * EvInput} which has to be checked manually, as {@link EvInput#equals(Object)} is NOT restricted
   * on the uuid of {@link EvInput}.
   *
   * <p>In contrast to {@link #getEvs()} this method provides the ability to pass in an already
   * existing set of {@link NodeInput}, {@link EvTypeInput} and {@link OperatorInput} entities, the
   * {@link EvInput} instances depend on. Doing so, already loaded nodes can be recycled to improve
   * performance and prevent unnecessary loading operations.
   *
   * <p>If something fails during the creation process a {@link SourceException} is thrown, else a
   * set with all entities that has been able to be build is returned.
   *
   * @param operators a set of object and uuid unique {@link OperatorInput} that should be used for
   *     the returning instances
   * @param nodes a set of object and uuid unique {@link NodeInput} entities
   * @param types a set of object and uuid unique {@link EvTypeInput} entities
   * @return a set of object and uuid unique {@link EvInput} entities
   */
  public Set<EvInput> getEvs(
      Set<NodeInput> nodes, Set<OperatorInput> operators, Set<EvTypeInput> types)
      throws SourceException {
    return Try.scanCollection(
            buildTypedSystemParticipantEntities(
                EvInput.class, evInputFactory, nodes, operators, types),
            EvInput.class)
        .getOrThrow(SourceException.class);
  }

  /**
   * Returns a unique set of {@link EmInput} instances.
   *
   * <p>This set has to be unique in the sense of object uniqueness but also in the sense of {@link
   * java.util.UUID} uniqueness of the provided {@link EmInput} which has to be checked manually, as
   * {@link EmInput#equals(Object)} is NOT restricted on the uuid of {@link EmInput}.
   *
   * @return a set of object and uuid unique {@link EmInput} entities
   */
  public Set<EmInput> getEmSystems() throws SourceException {
    Set<OperatorInput> operators = typeSource.getOperators();
    return getEmSystems(rawGridSource.getNodes(operators), operators);
  }

  /**
   * This set has to be unique in the sense of object uniqueness but also in the sense of {@link
   * java.util.UUID} uniqueness of the provided {@link EmInput} which has to be checked manually, as
   * {@link EmInput#equals(Object)} is NOT restricted on the uuid of {@link EmInput}.
   *
   * <p>In contrast to {@link #getHeatPumps()} this method provides the ability to pass in an
   * already existing set of {@link NodeInput} and {@link OperatorInput} entities, the {@link
   * EmInput} instances depend on. Doing so, already loaded nodes can be recycled to improve
   * performance and prevent unnecessary loading operations.
   *
   * <p>If something fails during the creation process a {@link SourceException} is thrown, else a
   * set with all entities that has been able to be build is returned.
   *
   * @param operators a set of object and uuid unique {@link OperatorInput} that should be used for
   *     the returning instances
   * @param nodes a set of object and uuid unique {@link NodeInput} entities
   * @return a set of object and uuid unique {@link EmInput} entities
   */
  public Set<EmInput> getEmSystems(Set<NodeInput> nodes, Set<OperatorInput> operators)
      throws SourceException {
    return Try.scanCollection(
            buildNodeAssetEntities(EmInput.class, emInputFactory, nodes, operators), EmInput.class)
        .getOrThrow(SourceException.class);
  }

  public Set<ChpInput> getChpPlants() throws SourceException {
    Set<OperatorInput> operators = typeSource.getOperators();
    Set<ThermalBusInput> thermalBuses = thermalSource.getThermalBuses(operators);
    return getChpPlants(
        rawGridSource.getNodes(operators),
        operators,
        typeSource.getChpTypes(),
        thermalBuses,
        thermalSource.getThermalStorages(operators, thermalBuses));
  }

  /**
   * If one of the sets of {@link NodeInput}, {@link ThermalBusInput}, {@link ThermalStorageInput}
   * or {@link ChpTypeInput} entities is not exhaustive for all available {@link ChpInput} entities
   * (e.g. a {@link NodeInput} or {@link ChpTypeInput} entity is missing) or if an error during the
   * building process occurs a {@link SourceException} is thrown, else all entities that are able to
   * be built will be returned.
   *
   * <p>If the set with {@link OperatorInput} is not exhaustive, the corresponding operator is set
   * to {@link OperatorInput#NO_OPERATOR_ASSIGNED}
   */
  public Set<ChpInput> getChpPlants(
      Set<NodeInput> nodes,
      Set<OperatorInput> operators,
      Set<ChpTypeInput> types,
      Set<ThermalBusInput> thermalBuses,
      Set<ThermalStorageInput> thermalStorages)
      throws SourceException {
    return Try.scanCollection(
            buildChpInputEntities(
                chpInputFactory, nodes, operators, types, thermalBuses, thermalStorages),
            ChpInput.class)
        .getOrThrow(SourceException.class);
  }

  public Set<HpInput> getHeatPumps() throws SourceException {
    Set<OperatorInput> operators = typeSource.getOperators();
    return getHeatPumps(
        rawGridSource.getNodes(operators),
        operators,
        typeSource.getHpTypes(),
        thermalSource.getThermalBuses());
  }

  /**
   * If one of the sets of {@link NodeInput}, {@link ThermalBusInput} or {@link HpTypeInput}
   * entities is not exhaustive for all available {@link HpInput} entities (e.g. a {@link NodeInput}
   * or {@link HpTypeInput} entity is missing) or if an error during the building process occurs a
   * {@link SourceException} is thrown, else all entities that are able to be built will be
   * returned.
   *
   * <p>If the set with {@link OperatorInput} is not exhaustive, the corresponding operator is set
   * to {@link OperatorInput#NO_OPERATOR_ASSIGNED}
   */
  public Set<HpInput> getHeatPumps(
      Set<NodeInput> nodes,
      Set<OperatorInput> operators,
      Set<HpTypeInput> types,
      Set<ThermalBusInput> thermalBuses)
      throws SourceException {
    return Try.scanCollection(
            buildHpInputEntities(hpInputFactory, nodes, operators, types, thermalBuses),
            HpInput.class)
        .getOrThrow(SourceException.class);
  }

  // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

  private <T extends SystemParticipantInput, A extends SystemParticipantTypeInput>
      Set<Try<T>> buildTypedSystemParticipantEntities(
          Class<T> entityClass,
          EntityFactory<T, SystemParticipantTypedEntityData<A>> factory,
          Collection<NodeInput> nodes,
          Collection<OperatorInput> operators,
          Collection<A> types) {
    return typedSystemParticipantEntityStream(entityClass, factory, nodes, operators, types)
        .collect(Collectors.toSet());
  }

  private Set<Try<ChpInput>> buildChpInputEntities(
      ChpInputFactory factory,
      Collection<NodeInput> nodes,
      Collection<OperatorInput> operators,
      Collection<ChpTypeInput> chpTypes,
      Collection<ThermalBusInput> thermalBuses,
      Collection<ThermalStorageInput> thermalStorages) {
    return chpInputStream(factory, nodes, operators, chpTypes, thermalBuses, thermalStorages)
        .collect(Collectors.toSet());
  }

  private Set<Try<HpInput>> buildHpInputEntities(
      HpInputFactory factory,
      Collection<NodeInput> nodes,
      Collection<OperatorInput> operators,
      Collection<HpTypeInput> types,
      Collection<ThermalBusInput> thermalBuses) {
    return hpInputStream(factory, nodes, operators, types, thermalBuses)
        .collect(Collectors.toSet());
  }

  // -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

  /**
   * Constructs a stream of {@link SystemParticipantInput} entities wrapped in {@link Optional}s.
   *
   * @param entityClass the class of the entities that should be built
   * @param factory the corresponding factory that is capable of building this entities
   * @param nodes the nodes that should be considered for these entities
   * @param operators the operators that should be considered for these entities
   * @param types the types that should be considered for these entities
   * @param <T> the type of the resulting entity
   * @param <A> the type of the type model of the resulting entity
   * @return a stream of optionals being either empty or holding an instance of a {@link
   *     SystemParticipantInput} of the requested entity class
   */
  private <T extends SystemParticipantInput, A extends SystemParticipantTypeInput>
      Stream<Try<T>> typedSystemParticipantEntityStream(
          Class<T> entityClass,
          EntityFactory<T, SystemParticipantTypedEntityData<A>> factory,
          Collection<NodeInput> nodes,
          Collection<OperatorInput> operators,
          Collection<A> types) {
    return buildTypedSystemParticipantEntityData(
            nodeAssetInputEntityDataStream(
                assetInputEntityDataStream(entityClass, operators), nodes),
            types)
        .filter(Optional::isPresent)
        .map(Optional::get)
        .map(factory::get);
  }

  private Stream<Try<ChpInput>> chpInputStream(
      ChpInputFactory factory,
      Collection<NodeInput> nodes,
      Collection<OperatorInput> operators,
      Collection<ChpTypeInput> types,
      Collection<ThermalBusInput> thermalBuses,
      Collection<ThermalStorageInput> thermalStorages) {
    return buildChpEntityData(
            buildTypedEntityData(
                nodeAssetInputEntityDataStream(
                    assetInputEntityDataStream(ChpInput.class, operators), nodes),
                types),
            thermalStorages,
            thermalBuses)
        .filter(Optional::isPresent)
        .map(Optional::get)
        .map(factory::get);
  }

  private Stream<Try<HpInput>> hpInputStream(
      HpInputFactory factory,
      Collection<NodeInput> nodes,
      Collection<OperatorInput> operators,
      Collection<HpTypeInput> types,
      Collection<ThermalBusInput> thermalBuses) {
    return buildHpEntityData(
            buildTypedEntityData(
                nodeAssetInputEntityDataStream(
                    assetInputEntityDataStream(HpInput.class, operators), nodes),
                types),
            thermalBuses)
        .filter(Optional::isPresent)
        .map(Optional::get)
        .map(factory::get);
  }

  /**
   * Enriches a given stream of {@link NodeAssetInputEntityData} optionals with a type of {@link
   * SystemParticipantTypeInput} based on the provided collection of types and the fields to values
   * mapping that inside the already provided {@link NodeAssetInputEntityData} instance.
   *
   * @param nodeAssetEntityDataStream the data stream of {@link NodeAssetInputEntityData} optionals
   * @param types the types that should be used for enrichment and to build {@link
   *     SystemParticipantTypedEntityData} from
   * @param <T> the type of the provided entity types as well as the type parameter of the resulting
   *     {@link SystemParticipantTypedEntityData}
   * @return a stream of optional {@link SystemParticipantTypedEntityData} instances or empty
   *     optionals if the type couldn't be found
   */
  private <T extends SystemParticipantTypeInput>
      Stream<Optional<SystemParticipantTypedEntityData<T>>> buildTypedSystemParticipantEntityData(
          Stream<Optional<NodeAssetInputEntityData>> nodeAssetEntityDataStream,
          Collection<T> types) {
    return nodeAssetEntityDataStream
        .parallel()
        .map(
            nodeAssetInputEntityDataOpt ->
                nodeAssetInputEntityDataOpt.flatMap(
                    nodeAssetInputEntityData ->
                        buildTypedSystemParticipantEntityData(nodeAssetInputEntityData, types)));
  }

  protected <T extends SystemParticipantTypeInput>
      Optional<SystemParticipantTypedEntityData<T>> buildTypedSystemParticipantEntityData(
          NodeAssetInputEntityData nodeAssetInputEntityData, Collection<T> types) {
    return getAssetType(
            types,
            nodeAssetInputEntityData.getFieldsToValues(),
            nodeAssetInputEntityData.getClass().getSimpleName())
        .map(
            // if the optional is present, transform and return to the data,
            // otherwise return an empty optional
            assetType -> {
              Map<String, String> fieldsToAttributes = nodeAssetInputEntityData.getFieldsToValues();

              // remove fields that are passed as objects to constructor
              fieldsToAttributes.keySet().remove(TYPE);

              return new SystemParticipantTypedEntityData<>(
                  fieldsToAttributes,
                  nodeAssetInputEntityData.getTargetClass(),
                  nodeAssetInputEntityData.getOperatorInput(),
                  nodeAssetInputEntityData.getNode(),
                  assetType);
            });
  }

  /**
   * Enriches a given stream of {@link NodeAssetInputEntityData} optionals with a type of {@link
   * SystemParticipantTypeInput} based on the provided collection of types and the fields to values
   * mapping that inside the already provided {@link NodeAssetInputEntityData} instance.
   *
   * @param nodeAssetEntityDataStream the data stream of {@link NodeAssetInputEntityData} optionals
   * @param types the types that should be used for enrichment and to build {@link
   *     SystemParticipantTypedEntityData} from
   * @param <T> the type of the provided entity types as well as the type parameter of the resulting
   *     {@link SystemParticipantTypedEntityData}
   * @return a stream of optional {@link SystemParticipantTypedEntityData} instances or empty
   *     optionals if the type couldn't be found
   */
  private <T extends SystemParticipantTypeInput>
      Stream<Optional<SystemParticipantTypedEntityData<T>>> buildTypedEntityData(
          Stream<Optional<NodeAssetInputEntityData>> nodeAssetEntityDataStream,
          Collection<T> types) {
    return nodeAssetEntityDataStream
        .parallel()
        .map(
            nodeAssetInputEntityDataOpt ->
                nodeAssetInputEntityDataOpt.flatMap(
                    nodeAssetInputEntityData ->
                        buildTypedEntityData(nodeAssetInputEntityData, types)));
  }

  protected <T extends SystemParticipantTypeInput>
      Optional<SystemParticipantTypedEntityData<T>> buildTypedEntityData(
          NodeAssetInputEntityData nodeAssetInputEntityData, Collection<T> types) {
    return getAssetType(
            types,
            nodeAssetInputEntityData.getFieldsToValues(),
            nodeAssetInputEntityData.getClass().getSimpleName())
        .map(
            // if the optional is present, transform and return to the data,
            // otherwise return an empty optional
            assetType -> {
              Map<String, String> fieldsToAttributes = nodeAssetInputEntityData.getFieldsToValues();

              // remove fields that are passed as objects to constructor
              fieldsToAttributes.keySet().remove(TYPE);

              return new SystemParticipantTypedEntityData<>(
                  fieldsToAttributes,
                  nodeAssetInputEntityData.getTargetClass(),
                  nodeAssetInputEntityData.getOperatorInput(),
                  nodeAssetInputEntityData.getNode(),
                  assetType);
            });
  }

  /**
   * Enriches a given stream of {@link SystemParticipantTypedEntityData} optionals with a type of
   * {@link ThermalBusInput} based on the provided collection of buses and the fields to values
   * mapping inside the already provided {@link SystemParticipantTypedEntityData} instance.
   *
   * @param typedEntityDataStream the data stream of {@link SystemParticipantTypedEntityData}
   *     optionals
   * @param thermalBuses the thermal buses that should be used for enrichment and to build {@link
   *     HpInputEntityData}
   * @return stream of optional {@link HpInputEntityData} instances or empty optionals if they
   *     thermal bus couldn't be found
   */
  private Stream<Optional<HpInputEntityData>> buildHpEntityData(
      Stream<Optional<SystemParticipantTypedEntityData<HpTypeInput>>> typedEntityDataStream,
      Collection<ThermalBusInput> thermalBuses) {

    return typedEntityDataStream
        .parallel()
        .map(
            typedEntityDataOpt ->
                typedEntityDataOpt.flatMap(
                    typedEntityData -> buildHpEntityData(typedEntityData, thermalBuses)));
  }

  protected Optional<HpInputEntityData> buildHpEntityData(
      SystemParticipantTypedEntityData<HpTypeInput> typedEntityData,
      Collection<ThermalBusInput> thermalBuses) {
    // get the raw data
    Map<String, String> fieldsToAttributes = typedEntityData.getFieldsToValues();

    // get the thermal bus input for this chp unit and try to built the entity data
    Optional<HpInputEntityData> hpInputEntityDataOpt =
        Optional.ofNullable(fieldsToAttributes.get(THERMAL_BUS))
            .flatMap(
                thermalBusUuid ->
                    thermalBuses.stream()
                        .filter(
                            storage ->
                                storage.getUuid().toString().equalsIgnoreCase(thermalBusUuid))
                        .findFirst()
                        .map(
                            thermalBus -> {

                              // remove fields that are passed as objects to constructor
                              fieldsToAttributes.keySet().remove(THERMAL_BUS);

                              return new HpInputEntityData(
                                  fieldsToAttributes,
                                  typedEntityData.getOperatorInput(),
                                  typedEntityData.getNode(),
                                  typedEntityData.getTypeInput(),
                                  thermalBus);
                            }));

    // if the requested entity is not present we return an empty element and
    // log a warning
    if (hpInputEntityDataOpt.isEmpty()) {
      logSkippingWarning(
          typedEntityData.getTargetClass().getSimpleName(),
          safeMapGet(fieldsToAttributes, "uuid", FIELDS_TO_VALUES_MAP),
          safeMapGet(fieldsToAttributes, "id", FIELDS_TO_VALUES_MAP),
          "thermalBus: " + safeMapGet(fieldsToAttributes, THERMAL_BUS, FIELDS_TO_VALUES_MAP));
    }

    return hpInputEntityDataOpt;
  }

  private Stream<Optional<ChpInputEntityData>> buildChpEntityData(
      Stream<Optional<SystemParticipantTypedEntityData<ChpTypeInput>>> typedEntityDataStream,
      Collection<ThermalStorageInput> thermalStorages,
      Collection<ThermalBusInput> thermalBuses) {

    return typedEntityDataStream
        .parallel()
        .map(
            typedEntityDataOpt ->
                typedEntityDataOpt.flatMap(
                    typedEntityData ->
                        buildChpEntityData(typedEntityData, thermalStorages, thermalBuses)));
  }

  protected Optional<ChpInputEntityData> buildChpEntityData(
      SystemParticipantTypedEntityData<ChpTypeInput> typedEntityData,
      Collection<ThermalStorageInput> thermalStorages,
      Collection<ThermalBusInput> thermalBuses) {

    // get the raw data
    Map<String, String> fieldsToAttributes = typedEntityData.getFieldsToValues();

    // get the thermal storage input for this chp unit
    Optional<ThermalStorageInput> thermalStorage =
        Optional.ofNullable(fieldsToAttributes.get(THERMAL_STORAGE))
            .flatMap(
                thermalStorageUuid -> findFirstEntityByUuid(thermalStorageUuid, thermalStorages));

    // get the thermal bus input for this chp unit
    Optional<ThermalBusInput> thermalBus =
        Optional.ofNullable(fieldsToAttributes.get("thermalBus"))
            .flatMap(thermalBusUuid -> findFirstEntityByUuid(thermalBusUuid, thermalBuses));

    // if the thermal storage or the thermal bus are not present we return an
    // empty element and log a warning
    if (!thermalStorage.isPresent() || !thermalBus.isPresent()) {
      StringBuilder sB = new StringBuilder();
      if (!thermalStorage.isPresent()) {
        sB.append("thermalStorage: ")
            .append(safeMapGet(fieldsToAttributes, THERMAL_STORAGE, FIELDS_TO_VALUES_MAP));
      }
      if (!thermalBus.isPresent()) {
        sB.append("\nthermalBus: ")
            .append(safeMapGet(fieldsToAttributes, THERMAL_BUS, FIELDS_TO_VALUES_MAP));
      }

      logSkippingWarning(
          typedEntityData.getTargetClass().getSimpleName(),
          safeMapGet(fieldsToAttributes, "uuid", FIELDS_TO_VALUES_MAP),
          safeMapGet(fieldsToAttributes, "id", FIELDS_TO_VALUES_MAP),
          sB.toString());

      return Optional.empty();
    }

    // remove fields that are passed as objects to constructor
    fieldsToAttributes
        .keySet()
        .removeAll(new HashSet<>(Arrays.asList("thermalBus", "thermalStorage")));

    return Optional.of(
        new ChpInputEntityData(
            fieldsToAttributes,
            typedEntityData.getOperatorInput(),
            typedEntityData.getNode(),
            typedEntityData.getTypeInput(),
            thermalBus.get(),
            thermalStorage.get()));
  }
}