Settings.java

/**
 *  C-Nery - A home automation web application for C-Bus.
 *  Copyright (C) 2008,2009,2012  Dave Oxley <dave@daveoxley.co.uk>.
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero 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 Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package com.daveoxley.cnery.pages;

import com.daveoxley.cnery.actions.SettingHome;
import com.daveoxley.cnery.dao.SettingDAO;
import com.daveoxley.cnery.entities.Setting;
import java.io.Serializable;
import javax.faces.context.FacesContext;
import org.jboss.seam.annotations.Create;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Transactional;
import org.jboss.seam.core.Events;

/**
 * <p>Page bean that corresponds to a similarly named JSP page.  This
 * class contains component definitions (and initialization code) for
 * all components that you have defined on this page, as well as
 * lifecycle methods and event handlers where you may add behavior
 * to respond to incoming events.</p>
 *
 * @author Dave Oxley <dave@daveoxley.co.uk>
 */

@Name("settings")
public class Settings implements Serializable {

    @In
    private Events events;

    @In
    private SettingDAO settingDAO;

    @In(create=true)
    private SettingHome settingHome;

    private double latitude;

    private double longitude;

    private int gpsRadius;

    private String skinName;

    @Create
    @Transactional
    public void initFieldValues() throws Exception {

        // Default to somewhere interesting ;)
        latitude = Double.parseDouble(getSettingValue("latitude", "-37.82"));
        longitude = Double.parseDouble(getSettingValue("longitude", "144.9835"));
        gpsRadius = Integer.parseInt(getSettingValue("gps_radius", "500"));
        skinName = getSettingValue("skin_name", null);
    }

    private String getSettingValue(String key, String defaultValue) {
        Setting setting = settingDAO.findSettingByName(key);
        if (setting != null)
            return setting.getValue();
        return defaultValue;
    }

    public double getLatitude() { return latitude; }
    public void setLatitude(double latitude) { this.latitude = latitude; }

    public double getLongitude() { return longitude; }
    public void setLongitude(double longitude) { this.longitude = longitude; }

    public int getGpsRadius() { return gpsRadius; }
    public void setGpsRadius(int gpsRadius) { this.gpsRadius = gpsRadius; }

    public String getSkinName() { return skinName; }
    public void setSkinName(String skinName) { this.skinName = skinName; }

    public String okButton_action() throws Exception {
        updateSetting("latitude", String.valueOf(latitude));
        updateSetting("longitude", String.valueOf(longitude));
        updateSetting("gps_radius", String.valueOf(gpsRadius));
        updateSetting("skin_name", skinName);

        events.raiseTransactionSuccessEvent("invalidateSettings");

        return "/index.xhtml";
    }

    private void updateSetting(String key, String value) {
        Setting setting = settingDAO.findSettingByName(key);
        if (setting == null) {
            settingHome.clearInstance();
            setting = settingHome.getInstance();
            setting.setName(key);
        }
        else {
            settingHome.clearInstance();
            settingHome.setId(key);
            setting = settingHome.getInstance();
        }
        setting.setValue(value);
        if (settingHome.isManaged())
            settingHome.update();
        else
            settingHome.persist();
    }

    public String getGoogleMapKey() {
        return FacesContext.getCurrentInstance().getExternalContext().getInitParameter("com.daveoxley.cnery.GOOGLE_MAPS_KEY");
    }
}