internal int InsertEmptyObject(SqoTypeInfo tinf)
{
int oid = GetNextOID(tinf);
byte[] oidBuff = ByteConverter.IntToByteArray(oid);
long position = MetaHelper.GetSeekPosition(tinf, oid);
file.Write(position, oidBuff);
SaveNrRecords(tinf, tinf.Header.numberOfRecords + 1);
return(oid);
}
public void SerializeObject(byte[] objectData, int oid, SqoTypeInfo ti, bool insert)
{
long position = MetaHelper.GetSeekPosition(ti, oid);
file.Write(position, objectData);
if (insert)
{
SaveNrRecords(ti, ti.Header.numberOfRecords + 1);
}
}
public async Task SerializeObjectAsync(byte[] objectData, int oid, SqoTypeInfo ti, bool insert)
{
long position = MetaHelper.GetSeekPosition(ti, oid);
await file.WriteAsync(position, objectData).ConfigureAwait(false);
if (insert)
{
await SaveNrRecordsAsync(ti, ti.Header.numberOfRecords + 1).ConfigureAwait(false);
}
}
/// <summary>
/// Updates this instance.
/// </summary>
public void Update()
{
if (String.IsNullOrEmpty(MetaValueCtrl.Text) && MetaField.AllowNulls)
{
MetaHelper.SetMetaFieldValue(base.MDContext, MetaObject, MetaField.Name, new object[] { null });
}
else
{
MetaHelper.SetMetaFieldValue(base.MDContext, MetaObject, MetaField.Name, new object[] { Boolean.Parse(MetaValueCtrl.Text) });
}
}
public void Update()
{
if (String.IsNullOrEmpty(DicSingleValueCtrl.SelectedValue) && MetaField.AllowNulls)
{
MetaHelper.SetMetaFieldValue(MetaField.Context, MetaObject, MetaField.Name, new object[] { null });
}
else
{
MetaHelper.SetMetaFieldValue(MetaField.Context, MetaObject, MetaField.Name, new object[] { DicSingleValueCtrl.SelectedValue });
}
}
private Dictionary <FieldSqoInfo, FieldSqoInfo> JoinFieldsSqoInfo(SqoTypeInfo actualTypeinfo, SqoTypeInfo oldTypeinfo)
{
Dictionary <FieldSqoInfo, FieldSqoInfo> fields = new Dictionary <FieldSqoInfo, FieldSqoInfo>();
foreach (FieldSqoInfo fi in actualTypeinfo.Fields)
{
FieldSqoInfo oldFi = MetaHelper.FindField(oldTypeinfo.Fields, fi.Name);
fields[fi] = oldFi;
}
return(fields);
}
public IBTree GetIndex(SqoTypeInfo type, string fieldName)
{
if (cache.ContainsKey(type))
{
FieldSqoInfo fi = MetaHelper.FindField(type.Fields, fieldName);
if (fi != null)
{
return(this.GetIndex(type, fi));
}
}
return(null);
}
public void SaveComplexFieldContent(KeyValuePair <int, int> oid_Tid, FieldSqoInfo fi, SqoTypeInfo ti, int oid)
{
byte[] by = new byte[MetaExtractor.GetAbsoluteSizeOfField(MetaExtractor.complexID)];
byte[] complexOID = ByteConverter.IntToByteArray(oid_Tid.Key);
byte[] complexTID = ByteConverter.IntToByteArray(oid_Tid.Value);
Array.Copy(complexOID, 0, by, 0, complexOID.Length);
Array.Copy(complexTID, 0, by, 4, complexTID.Length);
long position = MetaHelper.GetSeekPosition(ti, oid);
file.Write((long)(position + (long)fi.Header.PositionInRecord), by);
}
internal int ReadFirstTID(int oid, FieldSqoInfo fi, SqoTypeInfo ti, RawdataSerializer rawdataSerializer)
{
long position = MetaHelper.GetSeekPosition(ti, oid);
int recordLength = ti.Header.lengthOfRecord;
if (fi == null)
{
throw new SiaqodbException("Field not exists in the Type Definition, if you use a Property you have to use UseVariable Attribute");
}
byte[] b = new byte[fi.Header.Length];
file.Read((long)(position + (long)fi.Header.PositionInRecord), b);
return(rawdataSerializer.ReadComplexArrayFirstTID(b, ti.Header.version, this));
}
public int SerializeObjectWithNewOID(byte[] objectData, SqoTypeInfo ti)
{
int oid = GetNextOID(ti);
byte[] oidBuff = ByteConverter.IntToByteArray(oid);
Array.Copy(oidBuff, 0, objectData, 0, oidBuff.Length);
long position = MetaHelper.GetSeekPosition(ti, oid);
file.Write(position, objectData);
SaveNrRecords(ti, ti.Header.numberOfRecords + 1);
return(oid);
}
internal async Task <List <KeyValuePair <int, int> > > ReadComplexArrayOidsAsync(int oid, FieldSqoInfo fi, SqoTypeInfo ti, RawdataSerializer rawdataSerializer)
{
long position = MetaHelper.GetSeekPosition(ti, oid);
int recordLength = ti.Header.lengthOfRecord;
if (fi == null)
{
throw new SiaqodbException("Field not exists in the Type Definition, if you use a Property you have to use UseVariable Attribute");
}
byte[] b = new byte[fi.Header.Length];
await file.ReadAsync((long)(position + (long)fi.Header.PositionInRecord), b).ConfigureAwait(false);
return(rawdataSerializer.ReadComplexArrayOids(b, ti.Header.version, this));
}
public async Task <int> SerializeObjectWithNewOIDAsync(byte[] objectData, SqoTypeInfo ti)
{
int oid = GetNextOID(ti);
byte[] oidBuff = ByteConverter.IntToByteArray(oid);
Array.Copy(oidBuff, 0, objectData, 0, oidBuff.Length);
long position = MetaHelper.GetSeekPosition(ti, oid);
await file.WriteAsync(position, objectData).ConfigureAwait(false);
await SaveNrRecordsAsync(ti, ti.Header.numberOfRecords + 1).ConfigureAwait(false);
return(oid);
}
public async Task <KeyValuePair <int, int> > ReadOIDAndTIDAsync(SqoTypeInfo ti, int oid, FieldSqoInfo fi)
{
long position = MetaHelper.GetSeekPosition(ti, oid);
int recordLength = ti.Header.lengthOfRecord;
if (fi == null)
{
throw new SiaqodbException("Field not exists in the Type Definition, if you use a Property you have to use UseVariable Attribute");
}
byte[] b = new byte[fi.Header.Length];
await file.ReadAsync((long)(position + (long)fi.Header.PositionInRecord), b).ConfigureAwait(false);
return(ReadOIDAndTID(b));
}
public async Task PreLoadBytesAsync(int oidStart, int oidEnd, SqoTypeInfo ti)
{
this.oidStart = oidStart;
this.oidEnd = oidEnd;
long positionStart = MetaHelper.GetSeekPosition(ti, oidStart);
long positionEnd = MetaHelper.GetSeekPosition(ti, oidEnd);
int recordLength = ti.Header.lengthOfRecord;
if (preloadedBytes == null || preloadedBytes.Length != (recordLength + (positionEnd - positionStart)))
{
preloadedBytes = new byte[recordLength + (positionEnd - positionStart)];
}
await file.ReadAsync(positionStart, preloadedBytes).ConfigureAwait(false);
}
public void PreLoadBytes(int oidStart, int oidEnd, SqoTypeInfo ti)
{
this.oidStart = oidStart;
this.oidEnd = oidEnd;
long positionStart = MetaHelper.GetSeekPosition(ti, oidStart);
long positionEnd = MetaHelper.GetSeekPosition(ti, oidEnd);
int recordLength = ti.Header.lengthOfRecord;
if (preloadedBytes == null || preloadedBytes.Length != (recordLength + (positionEnd - positionStart)))
{
preloadedBytes = new byte[recordLength + (positionEnd - positionStart)];
}
file.Read(positionStart, preloadedBytes);
}
/// <summary>
/// Adds a "grade" field to the search index
/// </summary>
/// <param name="doc"></param>
/// <param name="metaField"></param>
/// <param name="metaObject"></param>
private void AddGradeFields(Document doc, MetaField metaField, System.Collections.Hashtable metaObject)
{
object val = MetaHelper.GetMetaFieldValue(metaField, metaObject[metaField.Name]);
string[] grades = parseGradeRange(val.ToString());
if (grades.Length > 0)
{
//Add the smallest grade to the index and make it a number for sorting
int gradeNumber = parseGradeName(grades[0]) + 1; //no negative numbers in the index
doc.Add(new Field("GradeNumber", ConvertStringToSortable(gradeNumber.ToString()), Field.Store.YES, Field.Index.UN_TOKENIZED));
}
foreach (string grade in grades)
{
doc.Add(new Field("Grade", grade, Field.Store.YES, Field.Index.UN_TOKENIZED));
}
}
public static ATuple <int, object> GetPartialObjectInfo(object o, SqoTypeInfo ti, string fieldName, Cache.MetaCache metaCache)
{
int oid = metaCache.GetOIDOfObject(o, ti);
foreach (FieldSqoInfo attKey in ti.Fields)
{
if (attKey.Name != fieldName)
{
continue;
}
#if SILVERLIGHT
object objVal = null;
try
{
objVal = MetaHelper.CallGetValue(attKey.FInfo, o, ti.Type);
}
catch (Exception ex)
{
throw new SiaqodbException("Override GetValue and SetValue methods of SqoDataObject-Silverlight limitation to private fields");
}
#else
object objVal = attKey.FInfo.GetValue(o);
#endif
if (attKey.FInfo.FieldType == typeof(string))
{
if (objVal == null)
{
objVal = string.Empty;
}
}
if (attKey.AttributeTypeId == MetaExtractor.documentID && objVal != null)
{
Sqo.MetaObjects.DocumentInfo dinfo = new Sqo.MetaObjects.DocumentInfo();
dinfo.OID = metaCache.GetDocumentInfoOID(ti, o, attKey.Name);
dinfo.TypeName = MetaHelper.GetDiscoveringTypeName(attKey.AttributeType);
if (SiaqodbConfigurator.DocumentSerializer == null)
{
throw new SiaqodbException("Document serializer is not set, use SiaqodbConfigurator.SetDocumentSerializer method to set it");
}
dinfo.Document = SiaqodbConfigurator.DocumentSerializer.Serialize(objVal);
objVal = dinfo;
}
return(new ATuple <int, object>(oid, objVal));
}
return(null);
}
internal List <int> DeleteObjectBy(SqoTypeInfo ti, Dictionary <string, object> criteria)
{
int i = 0;
ICriteria wPrev = null;
foreach (string fieldName in criteria.Keys)
{
FieldSqoInfo fi = MetaHelper.FindField(ti.Fields, fieldName);
if (fi == null)
{
throw new SiaqodbException("Field:" + fieldName + " was not found as member of Type:" + ti.TypeName);
}
Where w = new Where(fieldName, OperationType.Equal, criteria[fieldName]);
w.StorageEngine = this;
w.ParentSqoTypeInfo = ti;
w.ParentType.Add(w.ParentSqoTypeInfo.Type);
if (i > 0)
{
And and = new And();
and.Add(w, wPrev);
wPrev = and;
}
else
{
wPrev = w;
}
i++;
}
List <int> oids = wPrev.GetOIDs();
ObjectSerializer serializer = SerializerFactory.GetSerializer(this.path, GetFileByType(ti), useElevatedTrust);
lock (_syncRoot)
{
foreach (int oid in oids)
{
this.MarkObjectAsDelete(serializer, oid, ti);
this.indexManager.UpdateIndexesAfterDelete(oid, ti);
}
}
return(oids);
}
/// <summary>
/// Updates this instance.
/// </summary>
public void Update()
{
if (DictionaryItemsTable != null)
{
MetaStringDictionary dict = new MetaStringDictionary();
foreach (DataRow row in DictionaryItemsTable.Rows)
{
dict.Add((string)row["Key"], (string)row["Value"]);
}
MetaHelper.SetMetaFieldValue(MetaField.Context, MetaObject, MetaField.Name, new object[] { dict });
}
else
{
MetaHelper.SetMetaFieldValue(MetaField.Context, MetaObject, MetaField.Name, new object[] { null });
}
}
public async Task <int> ReadOidOfComplexAsync(SqoTypeInfo ti, int oid, FieldSqoInfo fi, RawdataSerializer rawSerializer)
{
long position = MetaHelper.GetSeekPosition(ti, oid);
int recordLength = ti.Header.lengthOfRecord;
if (fi == null)
{
throw new SiaqodbException("Field not exists in the Type Definition, if you use a Property you have to use UseVariable Attribute");
}
byte[] b = new byte[fi.Header.Length];
await file.ReadAsync((long)(position + (long)fi.Header.PositionInRecord), b).ConfigureAwait(false);
byte[] oidOfComplexObjBuff = GetFieldBytes(b, 0, 4);
int oidOfComplexObj = ByteConverter.ByteArrayToInt(oidOfComplexObjBuff);
return(oidOfComplexObj);
}
private void LoadModules()
{
string file = this.cbxFiles.SelectedValue;
file = Path.Combine(Server.MapPath("~/bin/"), file);
var assembly = Assembly.LoadFile(file);
var types = assembly.GetTypes().Where(p => p.IsPublic && this.GetBizCount(p) > 0).ToList();
var vList = new List <EAS.Explorer.Entities.Module>();
foreach (var item in types)
{
var xList = item.GetMethods().Where(x => Attribute.GetCustomAttribute(x, typeof(ServiceMethodAttribute)) != null)
.Select(p => new { Type = item, Method = p, M = Attribute.GetCustomAttribute(p, typeof(ServiceMethodAttribute)) as ServiceMethodAttribute })
.Select(p => new EAS.Explorer.Entities.Module
{
Guid = p.M.Guid.ToUpper(),
Name = p.M.Name,
Description = p.M.Description,
Type = MetaHelper.GetTypeString(p.Type),
Assembly = MetaHelper.GetAssemblyString(p.Type),
Method = p.Method.Name,
Developer = MetaHelper.GetDeveloperString(p.Type),
Version = MetaHelper.GetVersionString(p.Type),
SortCode = 0,
LMTime = DateTime.Now
})
.ToList();
vList.AddRange(xList);
}
string sortField = this.Grid2.SortField;
string sortDirection = this.Grid2.SortDirection;
if (!string.IsNullOrEmpty(sortField))
{
vList = vList.AsQueryable().DynamicSorting(sortField, sortDirection).ToList();
}
this.Grid2.DataSource = vList;
this.Grid2.DataBind();
}
public void Update()
{
// Add new values if any
if (DictionaryItemsTable != null)
{
foreach (DataRow row in DictionaryItemsTable.Rows)
{
if ((int)row["Id"] == -1)
{
int id = MetaField.Dictionary.Add((string)row["Value"]);
row["Id"] = id;
foreach (ListItem item in MetaMultiValueCtrl.Items)
{
if (Int32.Parse(item.Value) == -1 && String.Compare((string)row["Value"], item.Text) == 0)
{
item.Value = id.ToString();
}
}
}
}
}
//// Add new values if any
//foreach(ListItem item in MetaMultiValueCtrl.Items)
//{
// if(item.Value.Length == 0)
// MetaField.DictionaryAdd(item.Text);
//}
// Save selected values
ArrayList selected = new ArrayList();
foreach (ListItem item in MetaMultiValueCtrl.Items)
{
if (item.Selected)
{
selected.Add(item.Value);
}
}
MetaHelper.SetMetaFieldValue(MetaField.Context, MetaObject, MetaField.Name, (string[])selected.ToArray(typeof(string)));
//MetaField.Value = (string[])selected.ToArray(typeof(string));
}
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;
}
}
}
}
}
public static void FindAddIndexes(SqoTypeInfo ti, FieldSqoInfo fi)
{
bool found = false;
if (fi.FInfo != null)
{
if (typeof(IList).IsAssignableFrom(fi.FInfo.FieldType))//ignore
{
return;
}
object[] customAttStr = fi.FInfo.GetCustomAttributes(typeof(IndexAttribute), false);
if (customAttStr.Length > 0)
{
ti.IndexedFields.Add(fi);
found = true;
}
else
{
PropertyInfo pi = MetaHelper.GetAutomaticProperty(fi.FInfo);
if (pi != null)
{
customAttStr = pi.GetCustomAttributes(typeof(IndexAttribute), false);
if (customAttStr.Length > 0)
{
ti.IndexedFields.Add(fi);
found = true;
}
}
}
if (!found)//look in configuration
{
if (SiaqodbConfigurator.Indexes != null)
{
if (SiaqodbConfigurator.Indexes.ContainsKey(ti.Type))
{
if (SiaqodbConfigurator.Indexes[ti.Type].Contains(fi.Name))
{
ti.IndexedFields.Add(fi);
}
}
}
}
}
}
public IDbConnection BuildConnection(string driver, string connectionString)
{
IDbConnection conn = null;
switch (driver.ToUpper())
{
case MyMetaDrivers.MySql2:
conn = new MySqlConnection(connectionString);
break;
case MyMetaDrivers.PostgreSQL:
case MyMetaDrivers.PostgreSQL8:
conn = new NpgsqlConnection(connectionString);
break;
case MyMetaDrivers.Firebird:
case MyMetaDrivers.Interbase:
conn = new FbConnection(connectionString);
break;
case MyMetaDrivers.SQLite:
conn = new SQLiteConnection(connectionString);
break;
#if !IGNORE_VISTA
case MyMetaDrivers.VistaDB:
try
{
var mh = new MetaHelper();
conn = mh.GetConnection(connectionString);
}
catch
{
throw new Exception("Invalid VistaDB connection or VistaDB not installed");
}
break;
#endif
default:
break;
}
return(conn);
}
public static void FindFields(ICollection <FieldInfo> fields, Dictionary <FieldInfo, PropertyInfo> automaticProperties, Type t)
{
var flags = BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Public | BindingFlags.Static;
foreach (var field in t.GetFields(flags))
{
// Ignore inherited fields + OID
if (field.DeclaringType == t && field.Name != "oid" && field.Name != "<OID>k__BackingField")
{
//get automatic properties
PropertyInfo pi = MetaHelper.GetAutomaticProperty(field);
if (pi != null)
{
bool found = false;
foreach (FieldInfo fiAuto in automaticProperties.Keys)
{
if (fiAuto.Name == field.Name)
{
found = true;
break;
}
}
if (found)
{
continue;
}
automaticProperties[field] = pi;
}
fields.Add(field);
}
}
#if WinRT
var baseType = t.GetBaseType();
#else
var baseType = t.BaseType;
#endif
if (baseType != null)
{
FindFields(fields, automaticProperties, baseType);
}
}
private async Task <IBTree> RenewIndexAsync(SqoTypeInfo ti, string fieldName)
{
FieldSqoInfo finfo = MetaHelper.FindField(ti.Fields, fieldName);
IndexInfo2 indexInfo = null;
if (finfo != null)
{
string indexName = finfo.Name + ti.TypeName;
IList <IndexInfo2> stIndexes = await this.GetStoredIndexesAsync().ConfigureAwait(false);
foreach (IndexInfo2 ii in stIndexes)
{
if (indexName.StartsWith(ii.IndexName) || ii.IndexName.StartsWith(indexName))
{
indexInfo = ii;
break;
}
}
if (indexInfo != null)
{
if (storedIndexes != null && storedIndexes.Contains(indexInfo))
{
storedIndexes.Remove(indexInfo);
}
await siaqodb.DeleteAsync(indexInfo);
}
Type t = typeof(BTree <>).MakeGenericType(finfo.AttributeType);
ConstructorInfo ctor = t.GetConstructor(new Type[] { typeof(Siaqodb) });
IBTree index = (IBTree)ctor.Invoke(new object[] { this.siaqodb });
indexInfo = await this.BuildIndexAsync(finfo, ti, index);
index.SetIndexInfo(indexInfo);
await index.PersistAsync();
cacheIndexes.Set(ti, finfo, index);
return(index);
}
return(null);
}
public static void FindAddConstraints(SqoTypeInfo ti, FieldSqoInfo fi)
{
bool found = false;
if (fi.FInfo != null)//if is null can be from OLD schema version and now field is missing
{
object[] customAttStr = fi.FInfo.GetCustomAttributes(typeof(UniqueConstraint), false);
if (customAttStr.Length > 0)
{
ti.UniqueFields.Add(fi);
found = true;
}
else
{
PropertyInfo pi = MetaHelper.GetAutomaticProperty(fi.FInfo);
if (pi != null)
{
customAttStr = pi.GetCustomAttributes(typeof(UniqueConstraint), false);
if (customAttStr.Length > 0)
{
ti.UniqueFields.Add(fi);
found = true;
}
}
}
if (!found)//look in configuration
{
if (SiaqodbConfigurator.Constraints != null)
{
if (SiaqodbConfigurator.Constraints.ContainsKey(ti.Type))
{
if (SiaqodbConfigurator.Constraints[ti.Type].Contains(fi.Name))
{
ti.UniqueFields.Add(fi);
}
}
}
}
}
}
private async Task CheckForConcurencyAsync(object oi, ObjectInfo objInfo, SqoTypeInfo ti, ObjectSerializer serializer, bool updateTickCountInDB)
{
if (SiaqodbConfigurator.OptimisticConcurrencyEnabled)
{
FieldSqoInfo fi = MetaHelper.FindField(ti.Fields, "tickCount");
if (fi != null)
{
if (fi.AttributeType == typeof(ulong))
{
ulong tickCount = 0;
if (objInfo.Oid > 0 && objInfo.Oid <= ti.Header.numberOfRecords) //update or delete
{
tickCount = (ulong)(await serializer.ReadFieldValueAsync(ti, objInfo.Oid, fi).ConfigureAwait(false));
if (objInfo.TickCount != 0)
{
if (tickCount != objInfo.TickCount)
{
throw new OptimisticConcurrencyException("Another version of object with OID=" + objInfo.Oid.ToString() + " of Type:" + ti.TypeName + " is saved in database, refresh your object before save!");
}
}
}
tickCount = tickCount + 1L;
objInfo.AtInfo[fi] = tickCount;
#if SILVERLIGHT
MetaHelper.CallSetValue(fi.FInfo, tickCount, oi, ti.Type);
#else
fi.FInfo.SetValue(oi, tickCount);
#endif
if (updateTickCountInDB)
{
await serializer.SaveFieldValueAsync(objInfo.Oid, "tickCount", ti, tickCount, this.rawSerializer).ConfigureAwait(false);
}
}
}
}
}
internal async Task <ATuple <int, int> > GetArrayMetaOfFieldAsync(SqoTypeInfo ti, int oid, FieldSqoInfo fi)
{
long position = MetaHelper.GetSeekPosition(ti, oid);
int recordLength = ti.Header.lengthOfRecord;
if (fi == null)
{
throw new SiaqodbException("Field not exists in the Type Definition, if you use a Property you have to use UseVariable Attribute");
}
byte[] bytes = new byte[fi.Header.Length];
await file.ReadAsync((long)(position + (long)fi.Header.PositionInRecord), bytes).ConfigureAwait(false);
byte[] oidBytes = new byte[4];
Array.Copy(bytes, 1, oidBytes, 0, 4);
int rawInfoOID = (int)ByteConverter.DeserializeValueType(typeof(int), oidBytes, ti.Header.version);
byte[] nrElemeBytes = new byte[4];
Array.Copy(bytes, MetaExtractor.ExtraSizeForArray - 4, nrElemeBytes, 0, 4);
int nrElem = (int)ByteConverter.DeserializeValueType(typeof(int), nrElemeBytes, ti.Header.version);
return(new ATuple <int, int>(rawInfoOID, nrElem));
}