examples/Messaging/BIOMessageMgr/Src/BIOParser.cpp

/*
Copyright (c) 2005-2010 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.

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modification, are permitted provided that the following conditions are met:

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  list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
  this list of conditions and the following disclaimer in the documentation
  and/or other materials provided with the distribution.
* Neither the name of Nokia Corporation nor the names of its contributors
  may be used to endorse or promote products derived from this software
  without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Description:  
*/


#include "BIOParser.h"


CBioParser::CBioParser(CMsvEntry* aEntry)
                :iMsvEntry(aEntry)
        {

        }

CBioParser::~CBioParser()
        {
        delete iMessageBody;
        if(iRegisteredParserDll)
                {
                delete iRegisteredParserDll;
                iRegisteredParserDll = NULL;
                }
        iFs.Close( );
        delete iBioDb;
        }

CBioParser* CBioParser::NewL(CMsvEntry* aEntry)
        {
        CBioParser* self= new (ELeave) CBioParser(aEntry);
        CleanupStack::PushL(self);
        self->ConstructL();
        CleanupStack::Pop();
        return self;
        }

void CBioParser::ConstructL()
        {
        iFs.Connect();
        iFs.SetSessionPath(KBifDir);
        iBioDb = CBIODatabase::NewL(iFs);

        }

CBIOExampleParser* CBioParser::CreateParserL()
        {
        TUid messageUid;
        messageUid.iUid = iMsvEntry->Entry().iBioType;

        TFileName parserDllName(iBioDb->GetBioParserNameL(messageUid));

        if (iRegisteredParserDll)
                {
                delete iRegisteredParserDll;
                iRegisteredParserDll = NULL;
                }

    iRegisteredParserDll = CRegisteredParserDll::NewL(parserDllName);

    RLibrary parserlibrary;
    User::LeaveIfError(iRegisteredParserDll->GetLibrary(iFs, parserlibrary));

    typedef CBIOExampleParser* (*NewParserL)(CRegisteredParserDll& aRegisteredParserDll, CMsvEntry& aEntry, RFs& aFs);

    TInt entrypointordinalnumber=1;
    TLibraryFunction libFunc=parserlibrary.Lookup(entrypointordinalnumber);
    if (libFunc==NULL)
        User::Leave(KErrBadLibraryEntryPoint);
    NewParserL pFunc=(NewParserL) libFunc;
    TInt refcount=iRegisteredParserDll->DllRefCount();
    CBIOExampleParser* parser=NULL;
    TRAPD(ret,parser=((*pFunc)(*iRegisteredParserDll, *iMsvEntry, iFs)));
    if ((ret!=KErrNone) && (iRegisteredParserDll->DllRefCount()==refcount))
        iRegisteredParserDll->ReleaseLibrary();

        User::LeaveIfError(ret);

    return parser;
        }

void CBioParser::ParserL()
        {
        ExtractMessageBodyL();

        CMsvOperationWait* wait = CMsvOperationWait::NewLC();
        wait->iStatus = KRequestPending;
        wait->Start();

        CBIOExampleParser* parser = CreateParserL();
        // Parsing the message
        parser->ParseL(wait->iStatus, *iMessageBody);
        parser->Cancel();
        delete parser;


        CleanupStack::PopAndDestroy();  // wait
        }

void CBioParser::ExtractMessageBodyL()
        {

        CParaFormatLayer* paraFormatLayer = CParaFormatLayer::NewL();
    CleanupStack::PushL(paraFormatLayer);
    CCharFormatLayer* charFormatLayer = CCharFormatLayer::NewL();
    CleanupStack::PushL(charFormatLayer);
    CRichText* richText = CRichText::NewL(paraFormatLayer, charFormatLayer);
    CleanupStack::PushL(richText);

    CMsvStore* store = iMsvEntry->ReadStoreL();
        CleanupStack::PushL(store);

    if (!store->HasBodyTextL())
        User::Leave(KErrNotFound);

    store->RestoreBodyTextL(*richText);

        TInt messageLength = richText->DocumentLength();
        if (iMessageBody)
                {
                delete iMessageBody;
                iMessageBody = NULL;
                }
        iMessageBody = HBufC::NewL(messageLength);

        TPtr messDes = iMessageBody->Des();
        TInt length = messDes.Length();
        while (length < messageLength)
                {
                TPtrC desc = richText->Read(length, messageLength-length);
                messDes.Append(desc);
                length+=desc.Length();
                }
        CleanupStack::PopAndDestroy(4, paraFormatLayer); // store, text, charFormatLayer, paraFormatLayer
        }

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