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Java Marine API is an NMEA 0183 library for Java (http://ktuukkan.github.io/marine-api/).

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/*
 * RSAParser.java
 * Copyright (C) 2014 Lázár József, Kimmo Tuukkanen
 * 
 * This file is part of Java Marine API.
 * 
 * 
 * Java Marine API 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.
 * 
 * Java Marine API 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 Lesser General Public License
 * for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with Java Marine API. If not, see .
 */
package net.sf.marineapi.nmea.parser;

import net.sf.marineapi.nmea.sentence.RSASentence;
import net.sf.marineapi.nmea.sentence.SentenceId;
import net.sf.marineapi.nmea.sentence.TalkerId;
import net.sf.marineapi.nmea.util.DataStatus;
import net.sf.marineapi.nmea.util.Side;

/**
 * RSA sentence parser.
 * 
 * @author Lázár József, Kimmo Tuukkanen
 */
class RSAParser extends SentenceParser implements RSASentence {

	private static final int STARBOARD_SENSOR = 0;
	private static final int STARBOARD_STATUS = 1;
	private static final int PORT_SENSOR = 2;
	private static final int PORT_STATUS = 3;

	/**
	 * Creates a new instance of RSAParser.
	 * 
	 * @param nmea RSA sentence String
	 */
	public RSAParser(String nmea) {
		super(nmea, SentenceId.RSA);
	}

	/**
	 * Creates a new instance of RSAParser with empty data fields.
	 * 
	 * @param talker TalkerId to set
	 */
	public RSAParser(TalkerId talker) {
		super(talker, SentenceId.RSA, 4);
		setStatus(Side.STARBOARD, DataStatus.VOID);
		setStatus(Side.PORT, DataStatus.VOID);
	}

	@Override
	public double getRudderAngle(Side side) {
		if (Side.STARBOARD.equals(side)) {
			return getDoubleValue(STARBOARD_SENSOR);
		}
		return getDoubleValue(PORT_SENSOR);
	}

	@Override
	public void setRudderAngle(Side side, double angle) {
		if (Side.STARBOARD.equals(side)) {
			setDoubleValue(STARBOARD_SENSOR, angle);
		} else {
			setDoubleValue(PORT_SENSOR, angle);
		}
	}

	@Override
	public DataStatus getStatus(Side side) {
		if (Side.STARBOARD.equals(side)) {
			return DataStatus.valueOf(getCharValue(STARBOARD_STATUS));
		}
		return DataStatus.valueOf(getCharValue(PORT_STATUS));
	}

	@Override
	public void setStatus(Side side, DataStatus status) {
		if (Side.STARBOARD.equals(side)) {
			setCharValue(STARBOARD_STATUS, status.toChar());
		} else {
			setCharValue(PORT_STATUS, status.toChar());
		}
	}
}