internal void ReadObjectRow(Sqo.Utilities.ObjectRow row, SqoTypeInfo ti, int oid, RawdataSerializer rawSerializer)
{
lock (file)
{
// long position = (long)ti.Header.headerSize + (long)((long)(oid - 1) * (long)ti.Header.lengthOfRecord);
long position = MetaHelper.GetSeekPosition(ti, oid);
int recordLength = ti.Header.lengthOfRecord;
byte[] b = new byte[recordLength];
if (oidStart == 0 && oidEnd == 0)
{
file.Read(position, b);
}
else
{
int recordPosition = (oid - oidStart) * recordLength;
Array.Copy(preloadedBytes, recordPosition, b, 0, b.Length);
}
int fieldPosition = 0;
byte[] oidBuff = GetFieldBytes(b, fieldPosition, 4);
int oidFromFile = ByteConverter.ByteArrayToInt(oidBuff);
foreach (FieldSqoInfo ai in ti.Fields)
{
byte[] field = GetFieldBytes(b, ai.Header.PositionInRecord, ai.Header.Length);
if (typeof(IList).IsAssignableFrom(ai.AttributeType) || ai.IsText || ai.AttributeTypeId == MetaExtractor.complexID || ai.AttributeTypeId == MetaExtractor.dictionaryID || ai.AttributeTypeId == MetaExtractor.documentID)
{
row[ai.Name] = field;
}
else
{
try
{
row[ai.Name] = ByteConverter.DeserializeValueType(ai.AttributeType, field, true, ti.Header.version);
}
catch (Exception ex)
{
//SiaqodbConfigurator.LogMessage("Field's" + ai.Name + " value of Type " + ti.TypeName + "cannot be loaded,will be set to default.", VerboseLevel.Info);
//row[ai.Name] = MetaHelper.GetDefault(ai.AttributeType);
throw ex;
}
}
}
}
}
private static void ReadMemberValue(ObjectRow currentRow, System.Xml.XmlReader reader, int index, Dictionary <int, Type> members)
{
if (!reader.IsEmptyElement)
{
if (members[index] == typeof(char))
{
string s = reader.ReadElementContentAsString();
if (!string.IsNullOrEmpty(s))
{
currentRow[index] = s[0];
}
}
else if (members[index] == typeof(Guid))
{
string s = reader.ReadElementContentAsString();
currentRow[index] = new Guid(s);
}
else if (members[index].IsEnum())
{
string s = reader.ReadElementContentAsString();
Type enumType = Enum.GetUnderlyingType(members[index]);
object realObject = Convertor.ChangeType(s, enumType);
currentRow[index] = Enum.ToObject(members[index], realObject);
}
else
{
currentRow[index] = reader.ReadElementContentAs(members[index], null);
}
}
else
{
reader.ReadElementContentAsString();
}
//reader.MoveToElement();
}
public static IObjectList <T> ImportFromXML <T>(System.Xml.XmlReader reader, Siaqodb siaqodb)
{
ObjectTable obTable = new ObjectTable();
reader.Read();
reader.ReadStartElement("SiaqodbObjects");
SqoTypeInfo ti = siaqodb.GetSqoTypeInfo <T>();
bool colFinish = false;
ObjectRow currentRow = null;
int index = 0;
Dictionary <int, Type> members = new Dictionary <int, Type>();
while (reader.Read())
{
if (reader.IsStartElement() && reader.Name == "objects")
{
colFinish = true;
}
if (reader.IsStartElement() && !colFinish)
{
reader.MoveToFirstAttribute();
//string type = reader.Value;
Type t = Type.GetType(reader.Value);
reader.MoveToElement();
reader.ReadStartElement();
string columnName = reader.ReadContentAsString();
if (columnName == "OID")
{
throw new SiaqodbException("OID is set only internally, cannot be imported");
}
obTable.Columns.Add(columnName, index);
if (t.IsGenericType())
{
Type genericTypeDef = t.GetGenericTypeDefinition();
if (genericTypeDef == typeof(Nullable <>))
{
t = t.GetGenericArguments()[0];
}
}
members.Add(index, t);
index++;
}
if (reader.IsStartElement() && reader.Name == "object")
{
currentRow = obTable.NewRow();
obTable.Rows.Add(currentRow);
index = 0;
}
if (reader.IsStartElement() && reader.Name == "memberValue")
{
ReadMemberValue(currentRow, reader, index, members);
index++;
while (reader.Name == "memberValue")
{
ReadMemberValue(currentRow, reader, index, members);
index++;
}
}
}
return(ObjectTableHelper.CreateObjectsFromTable <T>(obTable, ti));
}
