void CAeonRowValue::SerializeKey (IByteStream &Stream, const CString &sKey, DWORD *retdwSize)
// SerializeKey
//
// Serializes a key and returns the serialized size.
//
// DWORD key size
// BYTES[] key (padded to DWORD align)
{
DWORD dwKeySize = sKey.GetLength();
// Write out the key length
Stream.Write(&dwKeySize, sizeof(DWORD));
// Write out the key (add 1 for NULL termination)
Stream.Write(sKey.GetParsePointer(), dwKeySize + 1);
// Save padding
DWORD dwZero = 0;
DWORD dwAlignedKeySize = AlignUp(dwKeySize + 1, (DWORD)sizeof(DWORD));
Stream.Write(&dwZero, dwAlignedKeySize - (dwKeySize + 1));
// Done
if (retdwSize)
*retdwSize = sizeof(DWORD) + dwAlignedKeySize;
}
bool CDatum::DeserializeTextUTF8 (IByteStream &Stream, CDatum *retDatum)
// DeserializeTextUTF8
//
// Loads straight UTF-8 into a single string value.
{
CStringBuffer Buffer;
// See if we have an encoding mark
BYTE BOM[3];
Stream.Read(BOM, sizeof(BOM));
if (BOM[0] == 0xef && BOM[1] == 0xbb && BOM[2] == 0xbf)
; // UTF-8
// Otherwise, not an encoding mark, so write it to the buffer
else
Buffer.Write(BOM, sizeof(BOM));
// Write the rest
Buffer.Write(Stream, Stream.GetStreamLength());
return CreateStringFromHandoff(Buffer, retDatum);
}
void CComplexBinary::OnSerialize (CDatum::ESerializationFormats iFormat, IByteStream &Stream) const
// OnSerialize
//
// Serialize
{
DWORD dwLength = GetLength();
Stream.Write(&dwLength, sizeof(DWORD));
if (dwLength)
Stream.Write(m_pData, dwLength);
}
bool CComplexBinary::OnDeserialize (CDatum::ESerializationFormats iFormat, const CString &sTypename, IByteStream &Stream)
// OnDeserialize
//
// Deserialize
{
if (m_pData)
{
delete [] GetBuffer();
m_pData = NULL;
}
DWORD dwLength;
Stream.Read(&dwLength, sizeof(DWORD));
if (dwLength > 0)
{
CComplexBinary Temp(Stream, dwLength);
m_pData = Temp.m_pData;
Temp.m_pData = NULL;
}
return true;
}
void CComplexDateTime::Serialize (CDatum::ESerializationFormats iFormat, IByteStream &Stream) const
// Serialize
//
// Serialize to the given format.
{
switch (iFormat)
{
case CDatum::formatAEONScript:
case CDatum::formatAEONLocal:
{
CString sDate = strPattern("#%d-%02d-%02dT%02d:%02d:%02d.%04d",
m_DateTime.Year(),
m_DateTime.Month(),
m_DateTime.Day(),
m_DateTime.Hour(),
m_DateTime.Minute(),
m_DateTime.Second(),
m_DateTime.Millisecond());
Stream.Write(sDate);
break;
}
case CDatum::formatJSON:
{
CString sDate = strPattern("\"%d-%02d-%02dT%02d:%02d:%02d.%04d\"",
m_DateTime.Year(),
m_DateTime.Month(),
m_DateTime.Day(),
m_DateTime.Hour(),
m_DateTime.Minute(),
m_DateTime.Second(),
m_DateTime.Millisecond());
Stream.Write(sDate);
break;
}
default:
IComplexDatum::Serialize(iFormat, Stream);
break;
}
}
bool CDatum::CreateBinary (IByteStream &Stream, int iSize, CDatum *retDatum)
// CreateBinary
//
// Creates a string datum containing binary data from the stream.
// If iSize is -1 then we read as much as the stream has.
// Otherwise we read up to iSize.
{
// LATER: Handle streams more than 2GB. Instead of asking how much space
// is left, maybe we should just ask to truncate the size that we're
// requesting.
int iDataRemaining = Stream.GetStreamLength() - Stream.GetPos();
int iBinarySize = (iSize < 0 ? iDataRemaining : Min(iDataRemaining, iSize));
// 0-size
if (iBinarySize == 0)
{
*retDatum = CDatum();
return true;
}
// Read the stream
CComplexBinary *pBinary;
try
{
pBinary = new CComplexBinary(Stream, iBinarySize);
}
catch (...)
{
return false;
}
// Done
*retDatum = CDatum(pBinary);
// Done
return true;
}
void CAeonRowValue::Serialize (IByteStream &Stream)
// Serialize
//
// Serialize the row (we always write out aligned to DWORD)
{
if (m_pFixedBlock)
Stream.Write(m_pFixedBlock, GetFixedBlockSize());
}
bool CRawMediaType::EncodeToBuffer (IByteStream &Stream, DWORD dwOffset, DWORD dwSize) const
// EncodeToBuffer
{
if (dwSize == 0xffffffff)
Stream.Write(m_sBody);
else
{
DWORD dwBodyLen = m_sBody.GetLength();
if (dwOffset < dwBodyLen)
{
DWORD dwActualSize = Min(dwSize, dwBodyLen - dwOffset);
Stream.Write(m_sBody.GetParsePointer() + dwOffset, dwSize);
}
}
return true;
}
void CComplexArray::Serialize (CDatum::ESerializationFormats iFormat, IByteStream &Stream) const
// Serialize
//
// Serialize to the given format.
{
int i;
switch (iFormat)
{
case CDatum::formatAEONScript:
case CDatum::formatAEONLocal:
{
Stream.Write("(", 1);
for (i = 0; i < m_Array.GetCount(); i++)
{
if (i != 0)
Stream.Write(" ", 1);
m_Array[i].Serialize(iFormat, Stream);
}
Stream.Write(")", 1);
break;
}
case CDatum::formatJSON:
{
Stream.Write("[", 1);
for (int i = 0; i < m_Array.GetCount(); i++)
{
if (i != 0)
Stream.Write(", ", 2);
m_Array[i].Serialize(iFormat, Stream);
}
Stream.Write("]", 1);
break;
}
default:
IComplexDatum::Serialize(iFormat, Stream);
break;
}
}
void IComplexDatum::WriteBinaryToStream (IByteStream &Stream, int iPos, int iLength, IProgressEvents *pProgress) const
// WriteBinaryToStream
{
const CString &sData = CastCString();
if (iPos >= sData.GetLength())
return;
if (pProgress)
pProgress->OnProgressStart();
if (iLength == -1)
iLength = Max(0, sData.GetLength() - iPos);
else
iLength = Min(iLength, sData.GetLength() - iPos);
Stream.Write(sData.GetPointer() + iPos, iLength);
if (pProgress)
pProgress->OnProgressDone();
}
void CMnemosynthDb::DebugDump (IByteStream &Stream)
// DebugDump
//
// Dumps the entire database
{
CSmartLock Lock(m_cs);
int i, j;
for (i = 0; i < m_Collections.GetCount(); i++)
{
SCollection *pCollection = &m_Collections[i];
if (pCollection->Entries.GetCount() == 0)
continue;
// Write out the collection name
const CString &sCollectionName = m_Collections.GetKey(i);
Stream.Write(sCollectionName);
Stream.Write("\n", 1);
// Write out each entry in the collection
for (j = 0; j < pCollection->Entries.GetCount(); j++)
{
// Write the key
const CString &sKey = pCollection->Entries.GetKey(j);
Stream.Write("\t", 1);
Stream.Write(sKey);
Stream.Write("\n", 1);
SEntry *pEntry = &pCollection->Entries[j];
Stream.Write("\t\t", 2);
pEntry->dValue.Serialize(CDatum::formatAEONScript, Stream);
Stream.Write("\n", 1);
}
}
}
CComplexBinary::CComplexBinary (IByteStream &Stream, int iLength)
// CComplexBinary constructor
{
ASSERT(iLength >= 0);
if (iLength == 0)
m_pData = NULL;
else
{
char *pPos = new char [sizeof(DWORD) + iLength + 1];
*(DWORD *)pPos = iLength;
pPos += sizeof(DWORD);
m_pData = pPos;
Stream.Read(pPos, iLength);
pPos += iLength;
*pPos = '\0';
}
}
void CDatum::WriteBinaryToStream (IByteStream &Stream, int iPos, int iLength, IProgressEvents *pProgress) const
// WriteBinaryToStream
//
// Writes a binary blob object to a stream.
{
switch (m_dwData & AEON_TYPE_MASK)
{
case AEON_TYPE_COMPLEX:
raw_GetComplex()->WriteBinaryToStream(Stream, iPos, iLength, pProgress);
break;
default:
{
const CString &sData = *this;
if (iPos >= sData.GetLength())
return;
if (iLength == -1)
iLength = Max(0, sData.GetLength() - iPos);
else
iLength = Min(iLength, sData.GetLength() - iPos);
if (pProgress)
pProgress->OnProgressStart();
Stream.Write(sData.GetPointer() + iPos, iLength);
if (pProgress)
pProgress->OnProgressDone();
break;
}
}
}
void htmlWriteAttributeValue (const CString &sText, IByteStream &Output)
// htmlWriteAttributeValue
//
// Writes attribute value text, escaping all appropriate characters.
{
char *pPos = sText.GetParsePointer();
char *pPosEnd = pPos + sText.GetLength();
char *pStart = pPos;
while (pPos < pPosEnd)
{
if (*pPos == '<')
{
Output.Write(pStart, pPos - pStart);
pPos++;
pStart = pPos;
Output.Write("<", 4);
}
else if (*pPos == '>')
{
Output.Write(pStart, pPos - pStart);
pPos++;
pStart = pPos;
Output.Write(">", 4);
}
else if (*pPos == '&')
{
Output.Write(pStart, pPos - pStart);
pPos++;
pStart = pPos;
Output.Write("&", 5);
}
else if (*pPos == '\"')
{
Output.Write(pStart, pPos - pStart);
pPos++;
pStart = pPos;
Output.Write(""", 6);
}
else if (*pPos == '\'')
{
Output.Write(pStart, pPos - pStart);
pPos++;
pStart = pPos;
Output.Write("'", 6);
}
else if (*pPos == '`')
{
Output.Write(pStart, pPos - pStart);
pPos++;
pStart = pPos;
Output.Write("`", 6);
}
else
// LATER: Should check for lower-ASCII characters
pPos++;
}
Output.Write(pStart, pPos - pStart);
}
void htmlWriteText (char *pPos, char *pPosEnd, IByteStream &Output)
// htmlWriteText
//
// Writes text, escaping all appropriate HTML characters.
//
// NOTE: This is only for the text content of HTML element; for escaping
// attribute values, use htmlWriteAttributeValue
{
char *pStart = pPos;
while (pPos < pPosEnd)
{
switch (*pPos)
{
case '<':
Output.Write(pStart, (int)(pPos - pStart));
pPos++;
pStart = pPos;
Output.Write("<", 4);
break;
case '>':
Output.Write(pStart, (int)(pPos - pStart));
pPos++;
pStart = pPos;
Output.Write(">", 4);
break;
case '&':
Output.Write(pStart, (int)(pPos - pStart));
pPos++;
pStart = pPos;
Output.Write("&", 5);
break;
default:
// Most control codes (other than whitespace) are illegal,
// so we strip them out.
if ((BYTE)*pPos <= 0x08
|| *pPos == 0x0b
|| *pPos == 0x0c
|| ((BYTE)*pPos >= 0x0e && (BYTE)*pPos <= 0x1f))
{
Output.Write(pStart, (int)(pPos - pStart));
pPos++;
pStart = pPos;
}
// Otherwise, keep parsing
else
pPos++;
break;
}
}
Output.Write(pStart, (int)(pPos - pStart));
}
void CComplexStruct::Serialize (CDatum::ESerializationFormats iFormat, IByteStream &Stream) const
// Serialize
//
// Serialize to the given format.
{
int i;
switch (iFormat)
{
case CDatum::formatAEONScript:
case CDatum::formatAEONLocal:
{
Stream.Write("{", 1);
for (i = 0; i < m_Map.GetCount(); i++)
{
if (i != 0)
Stream.Write(" ", 1);
// Write the key
CDatum Key(m_Map.GetKey(i));
Key.Serialize(iFormat, Stream);
// Separator
Stream.Write(":", 1);
// Write the value
m_Map[i].Serialize(iFormat, Stream);
}
Stream.Write("}", 1);
break;
}
case CDatum::formatJSON:
{
Stream.Write("{", 1);
for (i = 0; i < m_Map.GetCount(); i++)
{
if (i != 0)
Stream.Write(", ", 2);
// Write the key
CDatum Key(m_Map.GetKey(i));
Key.Serialize(iFormat, Stream);
// Separator
Stream.Write(": ", 2);
// Write the value
m_Map[i].Serialize(iFormat, Stream);
}
Stream.Write("}", 1);
break;
}
default:
IComplexDatum::Serialize(iFormat, Stream);
break;
}
}
void IComplexDatum::Serialize (CDatum::ESerializationFormats iFormat, IByteStream &Stream) const
// Serialize
//
// Serialize the datum
{
DWORD dwFlags = OnGetSerializeFlags();
switch (iFormat)
{
case CDatum::formatAEONScript:
case CDatum::formatAEONLocal:
{
if (!(dwFlags & FLAG_SERIALIZE_NO_TYPENAME))
{
Stream.Write("[", 1);
Stream.Write(GetTypename());
Stream.Write(":", 1);
}
// If this is object is serializable as a struct, then we do that.
if (dwFlags & FLAG_SERIALIZE_AS_STRUCT)
{
CComplexStruct *pStruct = new CComplexStruct;
OnSerialize(iFormat, pStruct);
CDatum dDatum(pStruct);
dDatum.Serialize(iFormat, Stream);
}
// Otherwise, serialize as base64 encoding
else
{
CBase64Encoder Encoder(&Stream);
OnSerialize(iFormat, Encoder);
Encoder.Close();
}
if (!(dwFlags & FLAG_SERIALIZE_NO_TYPENAME))
Stream.Write("]", 1);
break;
}
case CDatum::formatJSON:
{
if (!(dwFlags & FLAG_SERIALIZE_NO_TYPENAME))
{
Stream.Write("[\"AEON2011:", 11);
Stream.Write(GetTypename());
Stream.Write(":v1\", \"", 7);
}
// LATER: Handle serialization/deserialization of struct-based objects
CBase64Encoder Encoder(&Stream);
OnSerialize(iFormat, Encoder);
Encoder.Close();
if (!(dwFlags & FLAG_SERIALIZE_NO_TYPENAME))
Stream.Write("\"]", 2);
break;
}
default:
ASSERT(false);
}
}
