syncmlfw/common/xml/src/XMLGenerator.cpp
changeset 0 b497e44ab2fc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/syncmlfw/common/xml/src/XMLGenerator.cpp	Thu Dec 17 09:07:52 2009 +0200
@@ -0,0 +1,323 @@
+/*
+* Copyright (c) 2002 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:  XML generator
+*
+*/
+
+
+// ------------------------------------------------------------------------------------------------
+// Includes
+// ------------------------------------------------------------------------------------------------
+#include "WBXMLDefs.h"
+#include "XMLGenerator.h"
+#include "XMLStaticWorkspace.h"
+#include "XMLDynamicWorkspace.h"
+#include "WBXMLGeneratorError.h"
+
+_LIT8(KWBXMLTagStart, "<");
+_LIT8(KWBXMLTagStartEndTag, "</");
+_LIT8(KWBXMLTagEndNoContent, "/>");
+_LIT8(KWBXMLTagEnd, ">");
+_LIT8(KWBXMLElemenentSeparator, "|");
+_LIT8(KNamespaceBegin, " xmlns='");
+_LIT8(KNamespaceEnd, "'");
+_LIT8(KIndent, "   ");
+_LIT8(KNewLine, "\r\n");
+
+// ------------------------------------------------------------------------------------------------
+// CXMLGenerator
+// ------------------------------------------------------------------------------------------------
+EXPORT_C TPtrC8 CXMLGenerator::Document()
+	{
+	return Workspace()->Buffer();
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C void CXMLGenerator::Reset()
+	{
+	iElemStack.Reset();
+	if( iOwnsWorkspace )
+		{
+		Workspace()->Reset();
+		}
+	iNSAppended = EFalse;
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C void CXMLGenerator::CreateStaticWorkspaceL( TInt aBufferSize )
+	{
+	FreeWorkspace();
+	iWorkspace = CXMLStaticWorkspace::NewL(aBufferSize);
+	iOwnsWorkspace = ETrue;
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C void CXMLGenerator::CreateDynamicWorkspaceL()
+	{
+	FreeWorkspace();
+	iWorkspace = CXMLDynamicWorkspace::NewL();
+	iOwnsWorkspace = ETrue;
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C CXMLWorkspace* CXMLGenerator::Workspace() const
+	{
+	return iWorkspace;
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C void CXMLGenerator::SetWorkspace( CXMLWorkspace* aBuffer, TBool aTakeOwnership )
+	{	
+	FreeWorkspace();
+	iOwnsWorkspace = aTakeOwnership;
+	iWorkspace = aBuffer;
+	}
+
+// ------------------------------------------------------------------------------------------------
+void CXMLGenerator::FreeWorkspace()
+	{
+	if( iOwnsWorkspace )
+		{
+		delete iWorkspace;
+		iWorkspace = 0;
+		}
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C CXMLGenerator::CXMLGenerator()
+	{
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C CXMLGenerator::~CXMLGenerator()
+	{
+	delete iTable;
+	delete iNSName;
+	FreeWorkspace();
+	iElemStack.Reset();
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C void CXMLGenerator::BeginDocumentL( TUint8 /*aVersion*/, TInt32 /*aPublicId*/, TUint32 /*aCharset*/, const TDesC8& /*aStringTbl*/ )
+	{
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C void CXMLGenerator::BeginElementL( TUint8 aElement, TBool aHasContent, TBool aHasAttributes )
+	{
+	TBool addToElemStack(ETrue);
+	IndentL();
+	Workspace()->WriteL(KWBXMLTagStart());
+
+	Workspace()->WriteL(TranslateElement(aElement));
+
+	if( ((iNSAppendType == CXMLGenerator::EAppendToFirstElementOnly) && !(iNSAppended)) || (iNSAppendType == CXMLGenerator::EAppendToEveryElement) )
+		{
+		Workspace()->WriteL(KNamespaceBegin());
+		Workspace()->WriteL(*iNSName);
+		Workspace()->WriteL(KNamespaceEnd());
+		iNSAppended = ETrue;
+		}
+	
+	if( aHasAttributes )
+		{
+		// attributes
+		}
+
+	if( aHasContent )
+		{
+		Workspace()->WriteL(KWBXMLTagEnd());
+		}
+	else
+		{
+		Workspace()->WriteL(KWBXMLTagEndNoContent());
+		addToElemStack = EFalse;
+		}
+	
+	if( !iDontNewLine )
+		{
+		Workspace()->WriteL(KNewLine());
+		}
+	iDontNewLine = EFalse;
+
+	if( addToElemStack )
+		{
+		iElemStack.Insert(aElement, 0);
+		}
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C void CXMLGenerator::SetTranslateTableL( const TDesC8& aTable )
+	{
+	delete iTable;
+	iTable = 0;
+	iTable = aTable.AllocL();
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C void CXMLGenerator::SetNamespaceNameL( const TDesC8& aName, TNSmlNamespaceAppendType aAppendType )
+	{
+	iNSAppendType = aAppendType;
+	delete iNSName;
+	iNSName = 0;
+	iNSName = aName.AllocL();
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C void CXMLGenerator::EndElementL()
+	{
+	TUint8 elem = iElemStack[0];
+	iElemStack.Remove(0);
+	if( !iDontIndent )
+		{
+		IndentL();
+		}
+	iDontIndent = EFalse;
+	Workspace()->WriteL(KWBXMLTagStartEndTag());
+	Workspace()->WriteL(TranslateElement(elem));
+	Workspace()->WriteL(KWBXMLTagEnd());
+	Workspace()->WriteL(KNewLine());
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C void CXMLGenerator::AddElementL( TUint8 aElement, const TDesC8& aContent, const TXMLContentFormat aFormat )
+	{
+	iDontNewLine = ETrue;
+	BeginElementL(aElement, ETrue);
+	if( aFormat == EXMLContentFormatOpaque )
+		{
+		WriteOpaqueDataL(aContent);
+		}
+	else
+		{
+		WriteInlineStringL(aContent);
+		}
+	iDontIndent = ETrue;
+	EndElementL();
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C void CXMLGenerator::AddElementL( TUint8 /*aElement*/, const TDesC8& /*aContent*/, const CWBXMLAttributes& /*aAttributes*/, const TXMLContentFormat /*aFormat*/ )
+	{
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C void CXMLGenerator::AddEntityL( TUint32 /*aEntity*/ )
+	{
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C void CXMLGenerator::AddExt_IL( TInt /*aExtNum*/, const TDesC8& /*aContent*/ )
+	{
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C void CXMLGenerator::AddExt_TL( TInt /*aExtNum*/, TUint32 /*aContent*/ )
+	{
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C void CXMLGenerator::AddExtL( TInt /*aExtNum*/ )
+	{
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C void CXMLGenerator::SwitchCodePageL( TUint8 /*aNewCodePage*/ )
+	{
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C TInt CXMLGenerator::HandleResult( TInt aResult, TInt aTreshold )
+	{
+	switch( aResult )
+		{
+		case KErrNone:
+			if( Workspace()->FreeSize() < aTreshold )
+				{				
+				Workspace()->Rollback();
+				return KWBXMLGeneratorBufferFull;
+				}
+			Workspace()->Commit();
+			return KWBXMLGeneratorOk;
+
+		case KErrTooBig:
+			Workspace()->Rollback();
+			return KWBXMLGeneratorBufferFull;
+
+		default:
+		    return KErrGeneral;
+		}
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C TInt CXMLGenerator::IndentLevel() const
+	{
+	return iElemStack.Count();
+	}
+
+// ------------------------------------------------------------------------------------------------
+EXPORT_C void CXMLGenerator::SetIndentLevel( TInt aLevel )
+	{
+	iInitialIndentLevel = aLevel;
+	}
+
+// ------------------------------------------------------------------------------------------------
+void CXMLGenerator::WriteMUint32L( TUint32 /*aValue*/ )
+	{
+	}
+
+// ------------------------------------------------------------------------------------------------
+void CXMLGenerator::WriteOpaqueDataL( const TDesC8& aData )
+	{
+	Workspace()->WriteL(aData);
+	}
+
+// ------------------------------------------------------------------------------------------------
+void CXMLGenerator::WriteInlineStringL( const TDesC8& aData )
+	{
+	WriteOpaqueDataL(aData);
+	}
+
+// ------------------------------------------------------------------------------------------------
+TPtrC8 CXMLGenerator::TranslateElement( TUint8 aElement )
+	{
+	TPtrC8 buf(*iTable);
+	while( aElement-- )
+		{
+		TInt pos = buf.Find(KWBXMLElemenentSeparator());
+		if( pos == KErrNotFound )
+			{
+			return TPtrC8();
+			}
+		buf.Set(buf.Right(buf.Length() - pos - 1));
+		}
+
+	TInt pos = buf.Find(KWBXMLElemenentSeparator());
+	
+	if( pos != KErrNotFound )
+		{
+		buf.Set(buf.Left(pos));
+		}
+
+	return buf;
+	}
+
+// ------------------------------------------------------------------------------------------------
+void CXMLGenerator::IndentL()
+	{
+	for( TInt i = 0; i < iElemStack.Count() + iInitialIndentLevel; i++ )
+		{
+		Workspace()->WriteL(KIndent());
+		}
+	}