org.openhab.action.googletts.internal.GoogleTTSActionService.java Source code

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Here is the source code for org.openhab.action.googletts.internal.GoogleTTSActionService.java

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/**
 * Copyright (c) 2010-2013, openHAB.org and others.
 *
 * 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.action.googletts.internal;

import java.util.Dictionary;

import org.apache.commons.lang.StringUtils;
import org.openhab.action.googletts.internal.StringToMP3Converter.LanguageCode;
import org.openhab.core.scriptengine.action.ActionService;
import org.osgi.service.cm.ConfigurationException;
import org.osgi.service.cm.ManagedService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * This class registers an OSGi service for the GoogleTTS action.
 * 
 * @author cc
 * @since 1.6.0
 */
public class GoogleTTSActionService implements ActionService, ManagedService {

    private static final Logger logger = LoggerFactory.getLogger(GoogleTTSActionService.class);

    /**
     * Indicates whether this action is properly configured which means all
     * necessary configurations are set. This flag can be checked by the action
     * methods before executing code.
     */
    /* default */static boolean isProperlyConfigured = false;

    public GoogleTTSActionService() {
    }

    public void activate() {
    }

    public void deactivate() {
        // deallocate Resources here that are no longer needed and
        // should be reset when activating this binding again
    }

    @Override
    public String getActionClassName() {
        return GoogleTTS.class.getCanonicalName();
    }

    @Override
    public Class<?> getActionClass() {
        return GoogleTTS.class;
    }

    /**
     * @{inheritDoc
     */
    @Override
    public void updated(Dictionary<String, ?> config) throws ConfigurationException {
        if (config != null) {

            // set language code (default: LANG_US_ENGLISH)
            LanguageCode languageCode = LanguageCode.LANG_US_ENGLISH;
            String languagecodeStr = (String) config.get("languagecode");

            if (StringUtils.isNotBlank(languagecodeStr)) {
                LanguageCode configuredLanguageCode = LanguageCode.fromString(languagecodeStr);

                if (languageCode != null) {
                    languageCode = configuredLanguageCode;
                } else {
                    logger.error("Languagecode not valid.");
                }

            }

            // create instance of StringToMP3Converter to use for TTS
            StringToMP3Converter stringToMP3Converter = new StringToMP3Converter(languageCode);
            GoogleTTS.stringToMP3Converter = stringToMP3Converter;

            isProperlyConfigured = true;
        }
    }

}