org.openhab.io.gcal.internal.GCalConfiguration.java Source code

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Here is the source code for org.openhab.io.gcal.internal.GCalConfiguration.java

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/**
 * openHAB, the open Home Automation Bus.
 * Copyright (C) 2010-2013, openHAB.org <admin@openhab.org>
 *
 * See the contributors.txt file in the distribution for a
 * full listing of individual contributors.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses>.
 *
 * Additional permission under GNU GPL version 3 section 7
 *
 * If you modify this Program, or any covered work, by linking or
 * combining it with Eclipse (or a modified version of that library),
 * containing parts covered by the terms of the Eclipse Public License
 * (EPL), the licensors of this Program grant you additional permission
 * to convey the resulting work.
 */
package org.openhab.io.gcal.internal;

import java.util.Dictionary;

import org.apache.commons.lang.StringUtils;
import org.osgi.service.cm.ConfigurationException;
import org.osgi.service.cm.ManagedService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Configuration class which implements {@link ManagedService} to act as a central
 * handler for configuration issues. It holds the current configuration values
 * and gives acces through static member fields.
 * 
 * @author Thomas.Eichstaedt-Engelen
 * @since 1.0.0
 */
public class GCalConfiguration implements ManagedService {

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

    public static String username = "";
    public static String password = "";
    public static String url = "";

    /** holds the current refresh interval, default to 900000ms (15 minutes) */
    public static int refreshInterval = 900000;

    /** the offset (in days) which will used to store future events */
    public static int offset = 14;

    /**
     * the base script which is written to the newly created Calendar-Events by
     * the GCal based presence simulation. It must contain two format markers
     * <code>%s</code>. The first marker represents the Item to send the command
     * to and the second represents the State.
     */
    public static String executeScript = "> if (PresenceSimulation.state == ON) %s.sendCommand(%s)";

    private static boolean initialized = false;

    public static boolean isInitialized() {
        return initialized;
    }

    /**
     * {@inheritDoc}
     */
    @SuppressWarnings("rawtypes")
    public void updated(Dictionary config) throws ConfigurationException {
        if (config != null) {
            String usernameString = (String) config.get("username");
            username = usernameString;
            if (StringUtils.isBlank(username)) {
                throw new ConfigurationException("gcal:username",
                        "username must not be blank - please configure an aproppriate username in openhab.cfg");
            }

            String passwordString = (String) config.get("password");
            password = passwordString;
            if (StringUtils.isBlank(password)) {
                throw new ConfigurationException("gcal:password",
                        "password must not be blank - please configure an aproppriate password in openhab.cfg");
            }

            String urlString = (String) config.get("url");
            url = urlString;
            if (StringUtils.isBlank(url)) {
                throw new ConfigurationException("gcal:url",
                        "url must not be blank - please configure an aproppriate url in openhab.cfg");
            }

            String refreshString = (String) config.get("refresh");
            if (StringUtils.isNotBlank(refreshString)) {
                refreshInterval = Integer.parseInt(refreshString);
            }

            String offsetString = (String) config.get("offset");
            if (StringUtils.isNotBlank(offsetString)) {
                try {
                    offset = Integer.valueOf(offsetString);
                } catch (IllegalArgumentException iae) {
                    logger.warn("couldn't parse '{}' to an integer");
                }
            }

            String executeScriptString = (String) config.get("executescript");
            if (StringUtils.isNotBlank(executeScriptString)) {
                executeScript = executeScriptString;
            }

            initialized = true;
        }
    }

}