com.pi4j.io.gpio.tasks.impl.GpioPulseTaskImpl Maven / Gradle / Ivy
package com.pi4j.io.gpio.tasks.impl;
/*
* #%L
* **********************************************************************
ORGANIZATION : Pi4J
PROJECT : Pi4J :: Java Library (Core)
FILENAME : GpioPulseTaskImpl.java
This file is part of the Pi4J project. More information about
this project can be found here: http://www.pi4j.com/
**********************************************************************
* %%
* Copyright (C) 2012 - 2018 Pi4J
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* .
* #L%
*/
import com.pi4j.io.gpio.GpioPinDigitalOutput;
import com.pi4j.io.gpio.PinState;
import java.util.concurrent.Callable;
@SuppressWarnings("unused")
public class GpioPulseTaskImpl implements Runnable {
private final GpioPinDigitalOutput pin;
private final PinState inactiveState;
private final Callable callback;
public GpioPulseTaskImpl(GpioPinDigitalOutput pin, PinState inactiveState, Callable callback) {
this.pin = pin;
this.inactiveState = inactiveState;
this.callback = callback;
}
public GpioPulseTaskImpl(GpioPinDigitalOutput pin, PinState inactiveState) {
this.pin = pin;
this.inactiveState = inactiveState;
this.callback = null;
}
public void run() {
pin.setState(inactiveState);
// invoke callback if one was defined
if(callback != null){
try {
callback.call();
} catch (Exception e) {
e.printStackTrace();
}
}
}
}