NetworkConfig.java

package org.hamberry.util;

import net.rim.device.api.servicebook.ServiceBook;
import net.rim.device.api.servicebook.ServiceRecord;
import net.rim.device.api.system.DeviceInfo;
import net.rim.device.api.system.EventLogger;

public class NetworkConfig
{
	private static Logger	log				= Logger.getInstance();
	public static final int	MODE_AUTODETECT	= 0;
	public static final int	MODE_BIS		= 1;
	public static final int	MODE_BES		= 2;
	public static final int	MODE_TCP		= 3;
	
	private static String	connectionParameters;
	private static int		connectionMode;
	private static String	mdsConnection	= ";deviceside=false";
	private static String	tcpConnection	= ";deviceside=true";
	private static String	bisConnection	= ";deviceside=false;ConnectionType=mds-public";
	
	public static void init()
	{
		if (DeviceInfo.isSimulator())
		{
			setMode(MODE_TCP);
			return;
		}
		
		int m = Settings.getInstance().getConnectionMode();
		
		if (m > MODE_AUTODETECT)
		{
			setMode(m);
		} else
		{
			setMode(autodetect());
		}
	}
	
	private static int autodetect()
	{
		// if you have BES service book, use it
		try
		{
			ServiceBook sb = ServiceBook.getSB();
			ServiceRecord[] records = sb.findRecordsByCid("IPPP");
			if (records != null)
			{
				for (int i = records.length - 1; i >= 0; i--)
				{
					ServiceRecord rec = records[i];
					if (rec.isValid() && !rec.isDisabled())
					{
						if (rec.getEncryptionMode() == ServiceRecord.ENCRYPT_RIM)
						{
							log.info("Auto Detect detected BES");
							return MODE_BES;
						} else
						{
							log.info("Auto Detect detected BIS");
							return MODE_BIS;
						}
					}
				}
			}
			log.info("Auto Detect detected TCP");
			return MODE_TCP;
		} catch (Exception e)
		{
			// no permissions to explore service book. fall to TCP, I guess
			log.log("couldn't net-detect", e, EventLogger.WARNING);
			return MODE_TCP;
		}
	}
	
	private static void setMode(int mode)
	{
		log.debug("Setting mode to " + mode);
		switch (mode)
		{
			case MODE_BES:
				connectionParameters = mdsConnection;
				break;
			case MODE_TCP:
				connectionParameters = tcpConnection;
				break;
			case MODE_BIS:
				connectionParameters = bisConnection;
				break;
		}
		
		connectionMode = mode;
	}
	
	public static String getConnectionParameters()
	{
		if (connectionParameters == null)
		{
			init();
		}
		
		return connectionParameters;
	}
	
	public static String getConnectionParameters(int mode)
	{
		switch (mode)
		{
			case MODE_BES:
				return mdsConnection;
			case MODE_TCP:
				return tcpConnection;
			case MODE_BIS:
				return bisConnection;
			case MODE_AUTODETECT:
				return getConnectionParameters(autodetect());
			default:
				return null;
		}
	}
	
	public static int getConnectionMode()
	{
		return connectionMode;
	}
	
}