AudioSource.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.StringItem;
import org.openhab.core.library.types.StringType;

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

/**
 * Audio Sources are the numbered input found in AudioZones
 *
 * @author Dan Cunningham
 * @since 1.5.0
 */
public class AudioSource extends OmnilinkDevice {
    private AudioSourceProperties properties;
    private String[] audioText;

    public AudioSource(AudioSourceProperties properties) {
        this.properties = properties;
        this.audioText = new String[0];
    }

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

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

    /**
     * Returns the display text for this audio source.
     * 
     * @return array of audio fields
     */
    public String[] getAudioText() {
        return audioText;
    }

    /**
     * Sets the display text for this audio source.
     * 
     * @param audioText
     */
    public void setAudioText(String[] audioText) {
        this.audioText = audioText;
    }

    @Override
    public void updateItem(Item item, OmniLinkBindingConfig config, EventPublisher publisher) {
        String str = " ";

        switch (config.getObjectType()) {

            case AUDIOSOURCE_TEXT:
                str = formatAudioText();
                break;
            case AUDIOSOURCE_TEXT_FIELD1:
                str = getAudioText(0);
                break;
            case AUDIOSOURCE_TEXT_FIELD2:
                str = getAudioText(1);
                break;
            case AUDIOSOURCE_TEXT_FIELD3:
                str = getAudioText(2);
                break;
            default:
                return;
        }

        if (item instanceof StringItem) {
            publisher.postUpdate(item.getName(), new StringType(str));
        }
    }

    /**
     * Formats the multiple lines of audio text into a single delimited string.
     * 
     * @return pipe delimited audio text string.
     */
    public String formatAudioText() {
        StringBuilder sb = new StringBuilder();
        for (String s : audioText) {
            if (sb.length() > 0) {
                sb.append(" | ");
            }
            sb.append(s);
        }
        if (sb.length() == 0) {
            sb.append(" ");
        }

        return sb.toString();
    }

    public String getAudioText(int fieldNum) {
        String ret = fieldNum < audioText.length ? audioText[fieldNum] : null;
        return ret != null ? ret : " ";
    }
}