/*

* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Implementation class of the APNInfo interface

 *

*/

package com.nokia.mid.iapinfo;

import com.nokia.mid.iapinfo.APNControl;

import com.nokia.mid.iapinfo.CommDBException;

import com.nokia.mid.iapinfo.ConnectionPreferencesTable;

import com.nokia.mid.iapinfo.IAPTable;

import com.nokia.mj.impl.utils.Logger;

import com.nokia.mj.impl.rt.support.*;

import com.nokia.mj.impl.gcf.utils.NativeError;

import java.util.Vector;

/**

 * Implementation class of the APNInfo interface

 *

 * @version 0.1 First version of the implementation.

 */

class IAPInfoImpl extends IAPInfo

{

    // variable to store the network preferences

    private IAPTable iIAPTable = null;

    static

    {

        try

        {

            Logger.ILOG(Logger.ESOCKET, "loading javaiapinfo");

            Jvm.loadSystemLibrary("javaiapinfo");

            Logger.ILOG(Logger.ESOCKET, "javaiapinfo loaded");

        }

        catch (Exception e)

        {

            Logger.ELOG(Logger.ESOCKET, e.toString());

        }

    }

    /**

     * Default constructor. Creates a new IAPInfoImpl object.

     */

    public IAPInfoImpl() throws IAPInfoException

    {

        try

        {

            this.iIAPTable = new IAPTable();

        }

        catch (CommDBException e)

        {

            e.printStackTrace();

            throw new IAPInfoException(e.getMessage());

        }

    }

    /**

     * Please refer IapInfo Spec.

     */

    public AccessPoint[] getAccessPoints() throws IAPInfoException

    {

        AccessPoint[] _ac = null;

        try

        {

            this.iIAPTable.open();

            int _nr_of_access_points = this.iIAPTable.getRecordCount();

            _ac = new AccessPoint[_nr_of_access_points];

            for (int i = 0; i < _nr_of_access_points; i++)

            {

                AccessPoint _c = new AccessPoint(this.iIAPTable.iRecordId,

                                                 this.iIAPTable.iRecordName, this.iIAPTable.iBearerType,

                                                 this.iIAPTable.iServiceType);

                _ac[i] = _c;

                if (i != _nr_of_access_points - 1)

                    this.iIAPTable.nextRecord();

            }

            this.iIAPTable.close();

        }

        catch (CommDBException _exception)

        {

            this.iIAPTable.close();

            throw new IAPInfoException(_exception.getMessage());

        }// end of catch

        return _ac;

    }

    /**

     * Please refer IapInfo Spec.

     */

    public AccessPoint getAccessPoint(int aID) throws IAPInfoException

    {

        AccessPoint _ac = null;

        try

        {

            this.iIAPTable.open();

            int _ret = this.iIAPTable.findById(aID);

            if (_ret != IAPTable.RECORD_NOT_FOUND)

            {

                _ac = new AccessPoint(this.iIAPTable.iRecordId,

                                      this.iIAPTable.iRecordName, this.iIAPTable.iBearerType,

                                      this.iIAPTable.iServiceType);

            }

            this.iIAPTable.close();

        }

        catch (CommDBException _exception)

        {

            this.iIAPTable.close();

            throw new IAPInfoException(_exception.getMessage());

        }// end catch

        return _ac;

    }

    /**

     * Please refer IapInfo Spec.

     */

    public AccessPoint getAccessPoint(String aName) throws IAPInfoException

    {

        if (aName == null)

        {

            throw new IAPInfoException("Parameter is NULL");

        }

        AccessPoint _ac = null;

        try

        {

            this.iIAPTable.open();

            int _ret = this.iIAPTable.findByName(aName);

            if (_ret != IAPTable.RECORD_NOT_FOUND)

            {

                _ac = new AccessPoint(this.iIAPTable.iRecordId,

                                      this.iIAPTable.iRecordName, this.iIAPTable.iBearerType,

                                      this.iIAPTable.iServiceType);

            }

            this.iIAPTable.close();

        }

        catch (CommDBException _exception)

        {

            this.iIAPTable.close();

            throw new IAPInfoException(_exception.getMessage());

        }// end catch

        return _ac;

    }

    /**

     * Please refer IapInfo Spec.

     */

    public AccessPoint getLastUsedAccessPoint() throws IAPInfoException

    {

        APNControl _control = new APNControl();

        int _lastIAP = _control.getLastIAP();

        AccessPoint _ac = null;

        int _nr_of_access_points = 0;

        try

        {

            this.iIAPTable.open();

            _nr_of_access_points = this.iIAPTable.getRecordCount();

            for (int i = 0; i < _nr_of_access_points; i++)

            {

                if (this.iIAPTable.iRecordId == _lastIAP)

                {

                    _ac = new AccessPoint(this.iIAPTable.iRecordId,

                                          this.iIAPTable.iRecordName,

                                          this.iIAPTable.iBearerType,

                                          this.iIAPTable.iServiceType);

                    break;

                }// end if

                if (i != _nr_of_access_points - 1)

                {

                    this.iIAPTable.nextRecord();

                }

            }// end for

            this.iIAPTable.close();

        }

        catch (CommDBException _exception)

        {

            this.iIAPTable.close();

            throw new IAPInfoException(_exception.getMessage());

        }

        return _ac;

    }

    /**

     * Please refer IapInfo Spec.

     */

    public DestinationNetwork[] getDestinationNetworks()

    throws IAPInfoException

    {

        DestinationNetwork[] _array = null;

        try

        {

            String[] _obj = _getDestinationNetworks();

            if (_obj != null)

            {

                _array = new DestinationNetwork[_obj.length];

                for (int i = 0; i < _obj.length; i++)

                {

                    _array[i] = parse(_obj[i]);

                }// end for

            }// end if

        }

        catch (IAPInfoException exception)

        { // native code can throw it

            String message = exception.getMessage();

            int i = message.indexOf(':');

            throw new IAPInfoException(Integer.valueOf(

                                           message.substring(i + 2, message.length())).intValue(),

                                       exception.getMessage());

        }

        return _array;

    }

    /**

     * Please refer IapInfo Spec.

     */

    DestinationNetwork parse(String aString)

    {

        int index_1 = aString.indexOf(';');

        int dest_id = Integer.parseInt(aString.substring(0, index_1));

        // get the last ';'

        int index_2 = aString.lastIndexOf(';');

        String dest_name = aString.substring(index_1 + 1, index_2);

        String _iaps = aString.substring(index_2 + 1, aString.length());

        int[] _iap_ids = parseString(_iaps);

        DestinationNetwork _dn = new DestinationNetwork(dest_id, dest_name,

                _iap_ids);

        return _dn;

    }

    /**

     * Please refer IapInfo Spec.

     */

    public DestinationNetwork getDestinationNetwork(int aID)

    throws IAPInfoException

    {

        DestinationNetwork _network = null;

        try

        {

            String _returnedString = _getDestinationNetworkById(aID);

            if (_returnedString != null)

            {

                _network = parse(_returnedString);

            }

        }

        catch (IAPInfoException exception)

        { // native code can throw it

            String message = exception.getMessage();

            int i = message.indexOf(':');

            throw new IAPInfoException(Integer.valueOf(

                                           message.substring(i + 2, message.length())).intValue(),

                                       exception.getMessage());

        }

        return _network;

    }

    /**

     * Please refer IapInfo Spec.

     */

    public DestinationNetwork getDestinationNetwork(String aName)

    throws IAPInfoException

    {

        DestinationNetwork _network = null;

        try

        {

            String _returnedString = _getDestinationNetworkByName(aName);

            if (_returnedString != null)

            {

                _network = parse(_returnedString);

            }

        }

        catch (IAPInfoException exception)

        { // native code can throw it

            String message = exception.getMessage();

            int i = message.indexOf(':');

            throw new IAPInfoException(Integer.valueOf(

                                           message.substring(i + 2, message.length())).intValue(),

                                       exception.getMessage());

        }

        return _network;

    }

    /**

     * Please refer IapInfo Spec.

     */

    public AccessPoint[] getConnectionPreferences() throws IAPInfoException

    {

        ConnectionPreferencesTable _prefTable = null;

        AccessPoint[] _ac = null;

        try

        {

            _prefTable = new ConnectionPreferencesTable();

            _prefTable.open();

            int recNr = _prefTable.getRecordCount();

            HelperObject[] hp = new HelperObject[recNr];

            for (int i = 0; i < recNr; i++)

            {

                HelperObject _o = new HelperObject();

                _o.Id = _prefTable.iDefaultIAP;

                _o.Pref = _prefTable.iRanking;

                hp[i] = _o;

                if (i != recNr - 1)

                {

                    _prefTable.nextRecord();

                }

            }

            // sort it

            boolean stop = false;

            while (stop != true)

            {

                stop = true;

                for (int j = 0; j < hp.length - 1; j++)

                {

                    if (hp[j].Id > hp[j + 1].Id)

                    {

                        HelperObject tmp = hp[j];

                        hp[j] = hp[j + 1];

                        hp[j + 1] = tmp;

                        stop = false;

                    }// end if

                }// end for

            }// end while

            // get the AccesssPoints from IAPTable

            this.iIAPTable.open();

            Vector apv = new Vector();

            for (int i = 0; i < recNr; i++)

            {

                // int _ret = this.iIAPTable.findById( ids[ i ] );

                int _ret = this.iIAPTable.findById(hp[i].Id);

                if (_ret != IAPTable.RECORD_NOT_FOUND)

                {

                    apv.addElement(new AccessPoint(this.iIAPTable.iRecordId,

                                                   this.iIAPTable.iRecordName,

                                                   this.iIAPTable.iBearerType,

                                                   this.iIAPTable.iServiceType));

                }// end if

            }// end for

            _ac = new AccessPoint[apv.size()];

            for (int i = 0; i < apv.size(); i++)

            {

                _ac[i] = (AccessPoint) apv.elementAt(i);

            }

            this.iIAPTable.close();

            _prefTable.close();

        }

        catch (CommDBException e)

        {

            _prefTable.close();

            this.iIAPTable.close();

            throw new IAPInfoException(e.getMessage());

        }

        return _ac;

    }

    /*

     * Parses the string which contains the access point ids.

     *

     * @param aParameter String

     */

    int[] parseString(String aParameter)

    {

        int[] _returnArray = null;

        // search the separators

        int _index1 = aParameter.indexOf(",");

        if (_index1 == -1)

            return new int[0];

        int _elementCounter = 0;

        int _helper = 0;

        while (_helper != -1)

        {

            _helper = aParameter.indexOf(",", _index1 + 1);

            if (_helper != -1)

            {

                _elementCounter++;

                _index1 = _helper;

            }// end if

        }

        // create the _returnArray;

        _returnArray = new int[_elementCounter + 1];

        // get and add elements

        _index1 = 0;

        _helper = 0;

        int i = 0;

        while (_helper != -1)

        {

            _helper = aParameter.indexOf(",", _index1);

            if (_helper != -1)

            {

                String _substr = aParameter.substring(_index1, _helper);

                _returnArray[i] = Integer.parseInt(_substr);

                _index1 = _helper + 1;

                i++;

            }// end if

        }// end while

        return _returnArray;

    }

    class HelperObject

    {

        int Id;

        int Pref;

    }

    static native String[] _getDestinationNetworks() throws IAPInfoException;

    static native String _getDestinationNetworkById(int aID)

    throws IAPInfoException;

    static native String _getDestinationNetworkByName(String aName)

    throws IAPInfoException;

}