/*

* Copyright (c) 2008-2009 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:

*

*/

package com.nokia.mj.impl.installer.midp2.install.steps;

import com.nokia.mj.impl.installer.downloader.Downloader;

import com.nokia.mj.impl.installer.downloader.DownloadInfo;

import com.nokia.mj.impl.installer.exetable.ExeBall;

import com.nokia.mj.impl.installer.exetable.ExeStep;

import com.nokia.mj.impl.installer.utils.InstallerException;

import com.nokia.mj.impl.installer.utils.Log;

/**

 * Installation step DownloadJad takes care of downloading Jad

 * file if Jad url is specified in the command line arguments.

 * This is mostly used in Linux platform because in S60 platform

 * either jad or Jar is already present in the device when

 * installation is started.

 */

public class DownloadJad extends ExeStep

{

    public void execute(ExeBall aBall)

    {

        InstallBall ball = (InstallBall)aBall;

        if ((ball.iIap != null && !ball.iIap.equals("0")) ||

                (ball.iSnap != null && !ball.iSnap.equals("0")))

        {

            // If access point is specified start to post

            // pending OTA status notifications.

            // Uncomment next line if posting of pending OTA status

            // notifications are to be made in parallel with download.

            //ball.startToPostPendingNotifications();

        }

        // Download jad if jad url is specified with "-jad" option.

        if (ball.iJadUrl != null)

        {

            if (!ball.iAllowDownload)

            {

                InstallerException.internalError("Downloading is disabled");

            }

            // Get temp file name for jad file download.

            // Jad file must be downloaded to temp file

            // because uids have not yet been selected.

            ball.iJadFilename = ball.iIntegrityService

                                .createTempFile(ball.iInstallationDrive, ".jad");

            download(ball, ball.iJadUrl, ball.iJadFilename, true);

        }

        // If jar url is specified with "-jar" option, download also it.

        if (ball.iJarUrl != null)

        {

            if (!ball.iAllowDownload)

            {

                InstallerException.internalError("Downloading is disabled");

            }

            // Get temp file name for jar file download.

            // Jar file must be downloaded to temp file

            // because uids have not yet been selected.

            ball.iJarFilename = ball.iIntegrityService

                                .createTempFile(ball.iInstallationDrive, ".tmp");

            // Downloaded file will be moved, not copied.

            ball.iMoveInstallationFile = true;

            download(ball, ball.iJarUrl, ball.iJarFilename, false);

            if (ball.iJarFileType != null)

            {

                // The downloaded file must be renamed with correct

                // extension because DRM protected files cannot be

                // read if their extension does not indicate that

                // they are DRM protected.

                String newJarFilename = ball.iJarFilename + ball.iJarFileType;

                boolean fileOpResult = ball.iIntegrityService.move

                                       (ball.iJarFilename, newJarFilename);

                if (!fileOpResult)

                {

                    InstallerException.internalError

                    ("Moving file " + ball.iJarFilename +

                     " to " + newJarFilename + " failed.");

                }

                ball.iJarFilename = newJarFilename;

            }

        }

    }

    public void cancel(ExeBall aBall)

    {

        // nop

    }

    private void download(InstallBall aBall, String aUrl,

                          String aFilename, boolean aJad)

    {

        InstallerException dlException = null;

        try

        {

            // Start download.

            if (aBall.iDlListener == null)

            {

                aBall.iDlListener = new DlListener(aBall);

            }

            aBall.iDownloader = aBall.getDownloader(aBall.iDlListener);

            DownloadInfo dlInfo = new DownloadInfo(aUrl, aFilename);

            aBall.iDownloader.start(dlInfo);

            // Uncomment next line if posting of pending OTA status

            // notifications are to be made in parallel with download.

            //aBall.startToPostPendingNotifications();

            // Wait for download completion.

            aBall.iDownloader.waitForCompletion();

            aBall.iDownloader = null;

            // Check if there was an exception during download.

            dlException = dlInfo.getException();

            if (dlException == null && !aBall.isCancelled())

            {

                // No exception and installation has not been cancelled.

                aBall.iDownloadSucceeded = true;

            }

            if (aJad && aBall.iJadCharset == null)

            {

                // Get Jad charset if not overridden from command line.

                aBall.iJadCharset = dlInfo.getCharSet();

            }

            if (!aJad)

            {

                aBall.iJarFileType = dlInfo.getFileType();

            }

        }

        catch (Exception ex)

        {

            InstallerException.internalError

            ("Unexpected error during download", ex);

        }

        // If there was an exception during download, throw it.

        if (dlException != null)

        {

            throw dlException;

        }

    }

}