Transport manager

TransportManager.java

package com.semymegis.apps.pingmishop.net;

import java.io.IOException;
import java.rmi.ServerException;

import javax.microedition.io.Connection;
import javax.microedition.io.Connector;

import net.rim.device.api.servicebook.ServiceBook;
import net.rim.device.api.servicebook.ServiceRecord;
import net.rim.device.api.system.CoverageInfo;
import net.rim.device.api.system.CoverageStatusListener;
import net.rim.device.api.system.DeviceInfo;
import net.rim.device.api.system.GlobalEventListener;
import net.rim.device.api.system.RadioInfo;
import net.rim.device.api.system.WLANInfo;
import net.rim.device.api.ui.component.Dialog;

public class TransportManager implements CoverageStatusListener, GlobalEventListener {

	private TransportManager()
	{
	    setCoverage();
	}

	public static TransportManager getInstance()
	{
	    if(_manager == null)
	        _manager = new TransportManager();
	    return _manager;
	}

	private boolean isWifi()
	{
	    boolean wifi;
	    if(WLANInfo.getWLANState() == WLANInfo.WLAN_STATE_CONNECTED)
	        wifi = true;
	    else
	        wifi = false;
	    return wifi;
	}

	public Connection getConnection(String name, int mode, boolean timeouts)
	    throws IOException
	{
	    if(DeviceInfo.isSimulator()){
	    	System.out.println("TransportManager: simulator");
	        name = name.concat(";deviceside=true;ConnectionTimeout=20000");
	    }
	    else if(isWifi()){
	    	System.out.println("TransportManager: WiFi");
	    	name = name.concat(";interface=wifi");
	    }
	    else if(_mdsSupport){
	    	System.out.println("TransportManager: MDS");
	        name = name.concat(";deviceside=false");
	    }
	    else if(_bisSupport){
	    	System.out.println("TransportManager: BIS");
	        name = name.concat(";deviceside=false;ConnectionType=mds-public;EndToEndRequired;ConnectionTimeout=45000");
	    }
	    else if(!_wapSupport){
	    	System.out.println("TransportManager: WAP");
	        name = name.concat(";deviceside=true");
	    }
	    return Connector.open(name, mode, timeouts);
	}

//	public String getConnectionType()
//	{
//	    if(_mdsSupport)
//	        return "MDS";
//	    if(_bisSupport)
//	        return "BIS-B";
//	    if(_wapSupport)
//	        return "WAP";
//	    else
//	        return "Direct TCP";
//	}

	private void setCoverage()
	{
	    if(CoverageInfo.isCoverageSufficient(2))
	        _mdsSupport = true;
	    if(CoverageInfo.isCoverageSufficient(4))
	        _bisSupport = true;
	}

	public void coverageStatusChanged(int newCoverage)
	{
	    if((newCoverage & 2) == 2)
	        _mdsSupport = true;
	    if((newCoverage & 4) == 4)
	        _bisSupport = true;
	}

	private void parseServiceBooks()
	{
	    ServiceBook sb = ServiceBook.getSB();
	    ServiceRecord records[] = sb.findRecordsByCid(IPPP);
	    if(records == null)
	        return;
	    int numRecords = records.length;
	    for(int i = 0; i < numRecords; i++)
	    {
	        ServiceRecord myRecord = records[i];
	        String name = myRecord.getName();
	        String uid = myRecord.getUid();
	        if(!myRecord.isValid() || myRecord.isDisabled())
	            continue;
	        int encryptionMode = myRecord.getEncryptionMode();
	        if(encryptionMode == 2)
	            _mdsSupport = true;
	        else
	            _bisSupport = true;
	    }

	}

	public void eventOccurred(long guid, int data0, int data1, Object object0, Object object1)
	{
	    if(guid == 0xc56f572fa6bb41faL || guid == 0x73071ed24deea8fdL || guid == 0xb70eaf0364976928L || guid == 0x563b18cc6bc68309L || guid == 0x230322fc7183d35eL)
	    {
	        Dialog.inform("Service Book Global Event Received");
	        parseServiceBooks();
	    }
	}

	private static ServiceRecord getBIBSRecord()
	{
	    ServiceRecord ippps[] = ServiceBook.getSB().getRecords();
	    for(int i = 0; i < ippps.length; i++)
	        if(ippps[i].getCid().equals("IPPP") && ippps[i].getName().indexOf("BIBS") >= 0)
	            return ippps[i];

	    return null;
	}

	private static final long ID = 0x1431cf6271d3b1edL;
	private static String IPPP = "IPPP";
	private static TransportManager _manager;
	private boolean _isSimulator;
	private boolean _mdsSupport;
	private boolean _bisSupport;
	private boolean _wapSupport;
	private boolean _wifiSupport;

}