001package com.pi4j.io.gpio;
002
003import java.util.EnumSet;
004
005/*
006 * #%L
007 * **********************************************************************
008 * ORGANIZATION  :  Pi4J
009 * PROJECT       :  Pi4J :: Java Library (Core)
010 * FILENAME      :  PinState.java
011 *
012 * This file is part of the Pi4J project. More information about
013 * this project can be found here:  https://www.pi4j.com/
014 * **********************************************************************
015 * %%
016 * Copyright (C) 2012 - 2019 Pi4J
017 * %%
018 * This program is free software: you can redistribute it and/or modify
019 * it under the terms of the GNU Lesser General Public License as
020 * published by the Free Software Foundation, either version 3 of the
021 * License, or (at your option) any later version.
022 *
023 * This program is distributed in the hope that it will be useful,
024 * but WITHOUT ANY WARRANTY; without even the implied warranty of
025 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
026 * GNU General Lesser Public License for more details.
027 *
028 * You should have received a copy of the GNU General Lesser Public
029 * License along with this program.  If not, see
030 * <http://www.gnu.org/licenses/lgpl-3.0.html>.
031 * #L%
032 */
033
034/**
035 * Pin edge definition.
036 *
037 * @author Robert Savage (<a
038 *         href="http://www.savagehomeautomation.com">http://www.savagehomeautomation.com</a>)
039 */
040@SuppressWarnings("unused")
041public enum PinState {
042
043    LOW(0, "LOW"),
044    HIGH(1, "HIGH");
045
046    private final int value;
047    private final String name;
048
049    private PinState(int value, String name) {
050        this.value = value;
051        this.name = name;
052    }
053
054    public boolean isHigh() {
055        return (this == HIGH);
056    }
057
058    public boolean isLow() {
059        return (this == LOW);
060    }
061
062    public int getValue() {
063        return value;
064    }
065
066    public String getName() {
067        return name;
068    }
069
070    @Override
071    public String toString() {
072        return name;
073    }
074
075    public static PinState getState(int state) {
076        for (PinState item : PinState.values()) {
077            if (item.getValue() == state) {
078                return item;
079            }
080        }
081        return null;
082    }
083
084    public static PinState getInverseState(PinState state) {
085        return (state == HIGH ? LOW : HIGH);
086    }
087
088    public static PinState getState(boolean state) {
089        return (state ? PinState.HIGH : PinState.LOW);
090    }
091
092    public static PinState[] allStates() {
093        return PinState.values();
094    }
095
096    public static EnumSet<PinState> all() {
097        return EnumSet.of(PinState.HIGH, PinState.LOW);
098    }
099}