001package com.pi4j.io.gpio.trigger; 002 003/* 004 * #%L 005 * ********************************************************************** 006 * ORGANIZATION : Pi4J 007 * PROJECT : Pi4J :: Java Library (Core) 008 * FILENAME : GpioTriggerBase.java 009 * 010 * This file is part of the Pi4J project. More information about 011 * this project can be found here: https://www.pi4j.com/ 012 * ********************************************************************** 013 * %% 014 * Copyright (C) 2012 - 2019 Pi4J 015 * %% 016 * This program is free software: you can redistribute it and/or modify 017 * it under the terms of the GNU Lesser General Public License as 018 * published by the Free Software Foundation, either version 3 of the 019 * License, or (at your option) any later version. 020 * 021 * This program is distributed in the hope that it will be useful, 022 * but WITHOUT ANY WARRANTY; without even the implied warranty of 023 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 024 * GNU General Lesser Public License for more details. 025 * 026 * You should have received a copy of the GNU General Lesser Public 027 * License along with this program. If not, see 028 * <http://www.gnu.org/licenses/lgpl-3.0.html>. 029 * #L% 030 */ 031 032 033import com.pi4j.io.gpio.GpioPin; 034import com.pi4j.io.gpio.PinState; 035 036import java.util.List; 037import java.util.Vector; 038 039public abstract class GpioTriggerBase implements GpioTrigger { 040 041 private List<PinState> states = new Vector<>(); 042 043 public GpioTriggerBase() { 044 addPinState(PinState.allStates()); 045 } 046 047 public GpioTriggerBase(PinState state) { 048 addPinState(state); 049 } 050 051 public GpioTriggerBase(PinState[] states) { 052 addPinState(states); 053 } 054 055 public GpioTriggerBase(List<PinState> states) { 056 addPinState(states); 057 } 058 059 public void addPinState(PinState... state) { 060 if (state == null || state.length == 0) { 061 throw new IllegalArgumentException("Missing pin state argument."); 062 } 063 for (PinState s : state) { 064 if (!states.contains(s)) { 065 states.add(s); 066 } 067 } 068 } 069 070 public void addPinState(List<? extends PinState> states) { 071 for (PinState state : states) { 072 addPinState(state); 073 } 074 } 075 076 public boolean hasPinState(PinState state) { 077 return states.contains(state); 078 } 079 080 public abstract void invoke(GpioPin pin, PinState state); 081}