001package com.pi4j.io.serial.tasks;
002
003/*
004 * #%L
005 * **********************************************************************
006 * ORGANIZATION  :  Pi4J
007 * PROJECT       :  Pi4J :: Java Library (Core)
008 * FILENAME      :  SerialDataEventDispatchTaskImpl.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.serial.SerialDataEvent;
034import com.pi4j.io.serial.SerialDataEventListener;
035
036import java.util.ArrayList;
037import java.util.Collection;
038
039public class SerialDataEventDispatchTaskImpl implements Runnable {
040
041    private final SerialDataEvent event;
042    private final Collection<SerialDataEventListener> listeners;
043
044    public SerialDataEventDispatchTaskImpl(SerialDataEvent event, Collection<SerialDataEventListener> listeners) {
045        this.event = event;
046        this.listeners = listeners;
047    }
048
049    @Override
050    public void run() {
051
052        // create a copy of the listeners collection
053        Collection<SerialDataEventListener> listenersCopy  = new ArrayList<>(listeners);
054
055        // process event callbacks for serial data listeners
056        for (SerialDataEventListener listener : listenersCopy) {
057            if (listener != null) {
058                listener.dataReceived(event);
059            }
060        }
061    }
062}