Unit.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.omnilink.internal.model;

import org.openhab.binding.omnilink.internal.OmniLinkBindingConfig;
import org.openhab.core.events.EventPublisher;
import org.openhab.core.items.Item;
import org.openhab.core.library.items.DimmerItem;
import org.openhab.core.library.items.StringItem;
import org.openhab.core.library.items.SwitchItem;
import org.openhab.core.library.types.OnOffType;
import org.openhab.core.library.types.PercentType;
import org.openhab.core.library.types.StringType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.digitaldan.jomnilinkII.MessageTypes.properties.UnitProperties;

/**
 * Units are most commonly lights, they can also be flags
 *
 * @author Dan Cunningham
 * @since 1.5.0
 */
public class Unit extends OmnilinkDevice {
    private static final Logger logger = LoggerFactory.getLogger(Unit.class);
    public static final int UNIT_OFF = 0;
    public static final int UNIT_ON = 1;
    public static final int UNIT_SCENE_A = 2;
    public static final int UNIT_SCENE_L = 13;
    public static final int UNIT_DIM_1 = 17;
    public static final int UNIT_DIM_9 = 25;
    public static final int UNIT_BRIGHTEN_1 = 33;
    public static final int UNIT_BRIGHTEN_9 = 41;
    public static final int UNIT_LEVEL_0 = 100;
    public static final int UNIT_LEVEL_100 = 200;

    private UnitProperties properties;
    private int prevLevel = 0;

    public Unit(UnitProperties properties) {
        this.properties = properties;
    }

    @Override
    public UnitProperties getProperties() {
        return properties;
    }

    public void setProperties(UnitProperties properties) {
        this.properties = properties;
    }

    @Override
    public void updateItem(Item item, OmniLinkBindingConfig config, EventPublisher publisher) {

        int status = properties.getState();

        logger.debug("Unit state {}", status);

        int level = prevLevel;
        String display = "Off";

        if (status == UNIT_ON) {
            level = 100;
            display = "On";
        } else if ((status >= UNIT_SCENE_A) && (status <= UNIT_SCENE_L)) {
            level = 100;
            display = String.format("Scene %c", status - UNIT_SCENE_A + 'A');
        } else if ((status >= UNIT_DIM_1) && (status <= UNIT_DIM_9)) {
            display = String.format("Dim %d", level);
        } else if ((status >= UNIT_BRIGHTEN_1) && (status <= UNIT_BRIGHTEN_9)) {
            display = String.format("Brighten %d", level);
        } else if ((status >= UNIT_LEVEL_0) && (status <= UNIT_LEVEL_100)) {
            level = status - UNIT_LEVEL_0;
            display = String.format("Level %d", level);
        }

        if (item instanceof DimmerItem) {
            logger.debug("updating percent type {}", level);
            publisher.postUpdate(item.getName(), new PercentType(level));
        } else if (item instanceof SwitchItem) {
            logger.debug("updating switch type {}", level > 0 ? OnOffType.ON : OnOffType.OFF);
            publisher.postUpdate(item.getName(), level > 0 ? OnOffType.ON : OnOffType.OFF);
        } else if (item instanceof StringItem) {
            logger.debug("updating string type {}", display);
            publisher.postUpdate(item.getName(), new StringType(display));
        }
    }
}