1 /**

     2    This file is part of CWRT package **

     3 

     4    Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). **

     5 

     6    This program is free software: you can redistribute it and/or modify

     7    it under the terms of the GNU (Lesser) General Public License as 

     8    published by the Free Software Foundation, version 2.1 of the License. 

     9    This program is distributed in the hope that it will be useful, but

    10    WITHOUT ANY WARRANTY; without even the implied warranty of 

    11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 

    12    (Lesser) General Public License for more details. You should have 

    13    received a copy of the GNU (Lesser) General Public License along 

    14    with this program. If not, see <http://www.gnu.org/licenses/>.

    15 */

    16 

    17 #ifndef OMA2DOWNLOADBACKEND_H

    18 #define OMA2DOWNLOADBACKEND_H

    19 

    20 #include "dmcommon.h"

    21 #include "dmcommoninternal.h"

    22 #include "dmpimpl.h"

    23 #include "downloadbackend.h"

    24 

    25 // forward declarations

    26 class OMA2DownloadBackendPrivate;

    27 class DownloadCore;

    28 class ClientDownload;

    29 

    30 typedef QList<ClientDownload*> MediaDownloadList;

    31 

    32 // class declaration

    33 

    34 // concrete download implementation for OMA2 downloads

    35 class OMA2DownloadBackend : public DownloadBackend

    36 {

    37     Q_OBJECT

    38     DM_DECLARE_PRIVATE(OMA2DownloadBackend); // private implementation

    39 public:

    40     OMA2DownloadBackend(DownloadCore *dlCore, ClientDownload *dl);

    41     ~OMA2DownloadBackend();

    42 

    43     // fetches the oma2 download attributes

    44     QVariant getAttribute(DownloadAttribute attr);

    45     // sets the oma2 download specific attributes

    46     int setAttribute(DownloadAttribute attr, const QVariant& value);

    47     // overloaded function for pausing the download

    48     int pause();

    49     // overloaded function for resuming paused download

    50     int resume();

    51     // overloaded function for cancelling the download

    52     int cancel();

    53     // overloaded function for getting child downloads

    54     void getChildren(QList<Download*>& list);

    55 

    56     // stores the data in storage

    57     void store(QByteArray data, bool lastChunk=false);

    58     // deletes the storage

    59     void deleteStore();

    60     // returns the size of stored data

    61     qint64 storedDataSize();

    62     // re-constructing all the values as part of persistent storage

    63     void init();

    64 

    65 

    66 private slots:

    67     void bytesRecieved(qint64 bytesRecieved, qint64 bytesTotal);

    68     void handleFinished();    

    69     void bytesUploaded(qint64, qint64); 

    70 private:

    71     // parses download descriptor

    72     bool parseDownloadDescriptor();

    73     // does the capability check on receiving DD

    74     bool checkDownloadDescriptor();

    75     // event handler

    76     bool event(QEvent *event);

    77     // suppress user confirmation

    78     bool suppressUserConfirmation();

    79     // handle status code

    80     void handleStatusCode(const int& statusCode);

    81     // handle precondition failed

    82     void handlePreconditionFailed();

    83     // adds the downloads to downloadList

    84     void addtoDownloadList(ClientDownload *dl);

    85     // finds the download for the given id

    86     ClientDownload* findDownload(int id);

    87     // posting the install notify event to the web server

    88     void postInstallNotifyEvent(const char* statusMessage);

    89     // verifying downloads by going through the MediaObject map and setting OMA2'S state at the end.

    90     void verifyDownloads();

    91     // returns current MediaObject index

    92     int currentIndex();

    93     // setting values in QSettings for persistent storage

    94     void serializeData(ClientDownload* dl, int index);

    95 };

    96 

    97 #endif