MochadX10DimCommand.java

/**
 * Copyright (c) 2010-2016 by the respective copyright holders.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 */
package org.openhab.binding.mochadx10.commands;

import org.openhab.core.events.EventPublisher;
import org.openhab.core.library.types.PercentType;

/**
 * Implementation of the X10 Dim command
 *
 * @author Jack Sleuters
 * @since 1.7.0
 *
 */
public class MochadX10DimCommand extends MochadX10Command {
    /**
     * The dim value received from the Mochad X10 server.
     * Note this is a relative value in the range [0..DIM_LEVELS)
     */
    private int value;

    /**
     * Constructor
     * 
     * @param eventPublisher Required to post the command on the openhab bus
     * @param address The address for which this command was received
     * @param value The dim value received
     */
    public MochadX10DimCommand(EventPublisher eventPublisher, MochadX10Address address, int value) {
        super(eventPublisher, address);

        this.value = value;
    }

    @Override
    public void postCommand(String itemName, int currentLevel) {
        if (value < 0) {
            value = 1;
        }
        level = Math.max(0, currentLevel - value * 100 / (MochadX10Command.DIM_LEVELS - 1));

        eventPublisher.postCommand(itemName, new PercentType(level));
    }

    @Override
    public String toString() {
        return "MochadX10DimCommand [value=" + value + ", toString()=" + super.toString() + "]";
    }
}