Connect.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.entities.Setting;
import com.daveoxley.cbus.CGateSession;
import com.daveoxley.cnery.dao.SettingDAO;
import com.daveoxley.seam.exceptions.ValidationException;
import com.daveoxley.cnery.factories.CGateSessionFactory;
import java.io.Serializable;
import org.jboss.seam.Component;
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;
import org.jboss.seam.faces.FacesMessages;

/**
 * <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("connect")
public class Connect implements Serializable {

    @In
    private Events events;

    @In
    private FacesMessages facesMessages;

    @In
    private SettingDAO settingDAO;

    @In(create=true)
    private SettingHome settingHome;

    private String hostname;

    private int commandPort;

    private int eventPort;

    private int statusChangePort;

    @Create
    @Transactional
    public void initFieldValues() throws Exception {
        hostname = "localhost";
        commandPort = 20023;
        eventPort = 20024;
        statusChangePort = 20025;

        hostname = getSettingValue("cgate_server", "localhost");
        commandPort = Integer.parseInt(getSettingValue("cgate_command_port", "20023"));
        eventPort = Integer.parseInt(getSettingValue("cgate_event_port", "20024"));
        statusChangePort = Integer.parseInt(getSettingValue("cgate_status_change_port", "20025"));
    }

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

    public int getCommandPort() {
        return commandPort;
    }

    public void setCommandPort(int commandPort) {
        this.commandPort = commandPort;
    }

    public int getEventPort() {
        return eventPort;
    }

    public void setEventPort(int eventPort) {
        this.eventPort = eventPort;
    }

    public String getHostname() {
        return hostname;
    }

    public void setHostname(String hostname) {
        this.hostname = hostname;
    }

    public int getStatusChangePort() {
        return statusChangePort;
    }

    public void setStatusChangePort(int statusChangePort) {
        this.statusChangePort = statusChangePort;
    }

    public String okButton_action() throws ValidationException {
        updateSetting("cgate_server", hostname);
        updateSetting("cgate_command_port", String.valueOf(commandPort));
        updateSetting("cgate_event_port", String.valueOf(eventPort));
        updateSetting("cgate_status_change_port", String.valueOf(statusChangePort));

        events.raiseTransactionSuccessEvent("invalidateCGateSession");
        CGateSessionFactory cGateSessionFactory = (CGateSessionFactory)Component.getInstance("cGateSessionFactory");

        try {
            CGateSession newSession = cGateSessionFactory.createCGateSession0();
            newSession.connect();
        } catch (Exception e) {
            facesMessages.add(e.getLocalizedMessage());
            throw new ValidationException(e);
        }

        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();
    }
}