EdgeInfo.java

/**
 * Copyright (c) 2021, 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/.
 */
package com.powsybl.nad.svg;

import java.util.Optional;
import java.util.function.DoubleFunction;

/**
 * @author Florian Dupuy {@literal <florian.dupuy at rte-france.com>}
 */
public class EdgeInfo {
    public static final String ACTIVE_POWER = "ActivePower";
    public static final String REACTIVE_POWER = "ReactivePower";
    public static final String CURRENT = "Current";

    private final String infoType;
    private final Direction arrowDirection;
    private final String internalLabel;
    private final String externalLabel;

    public EdgeInfo(String infoType, Direction arrowDirection, String internalLabel, String externalLabel) {
        this.infoType = infoType;
        this.arrowDirection = arrowDirection;
        this.internalLabel = internalLabel;
        this.externalLabel = externalLabel;
    }

    public EdgeInfo(String infoType, double value, DoubleFunction<String> formatter) {
        this(infoType, getArrowDirection(value), null, formatter.apply(value));
    }

    private static Direction getArrowDirection(double value) {
        if (Double.isNaN(value)) {
            return null;
        }
        return value < 0 ? Direction.IN : Direction.OUT;
    }

    public String getInfoType() {
        return infoType;
    }

    public Optional<Direction> getDirection() {
        return Optional.ofNullable(arrowDirection);
    }

    public Optional<String> getInternalLabel() {
        return Optional.ofNullable(internalLabel);
    }

    public Optional<String> getExternalLabel() {
        return Optional.ofNullable(externalLabel);
    }

    public enum Direction {
        IN, OUT
    }
}