/// <summary>
/// Checks if the filter applies to the object.
/// </summary>
/// <param name="Object">Object.</param>
/// <param name="Serializer">Corresponding object serializer.</param>
/// <param name="Provider">Files provider.</param>
/// <returns>If the filter can be applied.</returns>
public async Task <bool> AppliesTo(object Object, IObjectSerializer Serializer, FilesProvider Provider)
{
object Value = await Serializer.TryGetFieldValue(this.FieldName, Object);
if (Value is null)
{
Type T = Object.GetType();
if (Serializer.ValueType == T)
{
return(false);
}
if (T == this.prevType)
{
Serializer = this.prevSerializer;
}
else
{
Serializer = this.prevSerializer = await Provider.GetObjectSerializer(T);
this.prevType = T;
}
Value = await Serializer.TryGetFieldValue(this.FieldName, Object);
if (Value is null)
{
return(false);
}
}
int?ComparisonResult = Comparison.Compare(Value, this.Value);
return(ComparisonResult.HasValue && ComparisonResult.Value > 0);
}
/// <summary>
/// Checks if the filter applies to the object.
/// </summary>
/// <param name="Object">Object.</param>
/// <param name="Serializer">Corresponding object serializer.</param>
/// <param name="Provider">Files provider.</param>
/// <returns>If the filter can be applied.</returns>
public bool AppliesTo(object Object, IObjectSerializer Serializer, FilesProvider Provider)
{
if (!Serializer.TryGetFieldValue(this.FieldName, Object, out object Value))
{
Type T = Object.GetType();
if (Serializer.ValueType == T)
{
return(false);
}
if (T == this.prevType)
{
Serializer = this.prevSerializer;
}
else
{
Serializer = this.prevSerializer = Provider.GetObjectSerializer(T);
this.prevType = T;
}
if (!Serializer.TryGetFieldValue(this.FieldName, Object, out Value))
{
return(false);
}
}
int?ComparisonResult = Comparison.Compare(Value, this.Value);
return(ComparisonResult.HasValue && ComparisonResult.Value == 0);
}
/// <summary>
/// Reads a typed array.
/// </summary>
/// <param name="T">Element type.</param>
/// <param name="Provider">Database provider object.</param>
/// <param name="Reader">Binary reader.</param>
/// <param name="FieldDataType">Field data type.</param>
/// <returns>String value.</returns>
/// <exception cref="ArgumentException">If the <paramref name="FieldDataType"/> was invalid.</exception>
public static Array ReadArray(Type T, FilesProvider Provider, BinaryDeserializer Reader, uint FieldDataType)
{
switch (FieldDataType)
{
case ObjectSerializer.TYPE_ARRAY:
IObjectSerializer S = Provider.GetObjectSerializer(T);
ulong NrElements = Reader.ReadVariableLengthUInt64();
if (NrElements > int.MaxValue)
{
throw new Exception("Array too long.");
}
int i, c = (int)NrElements;;
Array Result = Array.CreateInstance(T, c);
uint ElementDataType = Reader.ReadBits(6);
uint?ElementDataTypeN = ElementDataType == ObjectSerializer.TYPE_NULL ? (uint?)null : (uint?)ElementDataType;
for (i = 0; i < c; i++)
{
Result.SetValue(S.Deserialize(Reader, ElementDataTypeN, true), i);
}
return(Result);
case ObjectSerializer.TYPE_NULL:
return(null);
default:
throw new Exception("Array expected.");
}
}
/// <summary>
/// Reads a typed array.
/// </summary>
/// <typeparam name="T">Element type.</typeparam>
/// <param name="Provider">Database provider object.</param>
/// <param name="Reader">Binary reader.</param>
/// <param name="FieldDataType">Field data type.</param>
/// <returns>String value.</returns>
/// <exception cref="ArgumentException">If the <paramref name="FieldDataType"/> was invalid.</exception>
public static T[] ReadArray <T>(FilesProvider Provider, BinaryDeserializer Reader, uint FieldDataType)
{
switch (FieldDataType)
{
case ObjectSerializer.TYPE_ARRAY:
List <T> Elements = new List <T>();
IObjectSerializer S = Provider.GetObjectSerializer(typeof(T));
ulong NrElements = Reader.ReadVariableLengthUInt64();
uint ElementDataType = Reader.ReadBits(6);
uint?ElementDataTypeN = ElementDataType == ObjectSerializer.TYPE_NULL ? (uint?)null : (uint?)ElementDataType;
while (NrElements-- > 0)
{
Elements.Add((T)S.Deserialize(Reader, ElementDataTypeN, true));
}
return(Elements.ToArray());
case ObjectSerializer.TYPE_NULL:
return(null);
default:
throw new Exception("Array expected.");
}
}
/// <summary>
/// Checks if the filter applies to the object.
/// </summary>
/// <param name="Object">Object.</param>
/// <param name="Serializer">Corresponding object serializer.</param>
/// <param name="Provider">Files provider.</param>
/// <returns>If the filter can be applied.</returns>
public bool AppliesTo(object Object, IObjectSerializer Serializer, FilesProvider Provider)
{
if (!Serializer.TryGetFieldValue(this.FieldName, Object, out object Value))
{
Type T = Object.GetType();
if (Serializer.ValueType == T)
{
return(false);
}
if (T == this.prevType)
{
Serializer = this.prevSerializer;
}
else
{
Serializer = this.prevSerializer = Provider.GetObjectSerializer(T);
this.prevType = T;
}
if (!Serializer.TryGetFieldValue(this.FieldName, Object, out Value))
{
return(false);
}
}
string s = Value.ToString();
Match M = this.regex.Match(s);
return(M.Success && M.Index == 0 && M.Length == s.Length);
}
/// <summary>
/// Checks if the filter applies to the object.
/// </summary>
/// <param name="Object">Object.</param>
/// <param name="Serializer">Corresponding object serializer.</param>
/// <param name="Provider">Files provider.</param>
/// <returns>If the filter can be applied.</returns>
public async Task <bool> AppliesTo(object Object, IObjectSerializer Serializer, FilesProvider Provider)
{
object Value = await Serializer.TryGetFieldValue(this.FieldName, Object);
if (Value is null)
{
Type T = Object.GetType();
if (Serializer.ValueType == T)
{
return(false);
}
if (T == this.prevType)
{
Serializer = this.prevSerializer;
}
else
{
Serializer = this.prevSerializer = await Provider.GetObjectSerializer(T);
this.prevType = T;
}
Value = await Serializer.TryGetFieldValue(this.FieldName, Object);
if (Value is null)
{
return(false);
}
}
Match M;
if (Value is string s)
{
if (this.regexCs is null)
{
this.regexCs = new Regex(this.RegularExpression, RegexOptions.Singleline);
}
M = this.regexCs.Match(s);
}
else if (Value is CaseInsensitiveString cis)
{
if (this.regexCi is null)
{
this.regexCi = new Regex(this.RegularExpression, RegexOptions.Singleline | RegexOptions.IgnoreCase);
}
M = this.regexCi.Match(s = cis.Value);
}
else
{
s = Value.ToString();
if (!(this.regexCs is null))
{
M = this.regexCs.Match(s);
}
/// <summary>
/// Writes an array.
/// </summary>
/// <param name="T">Element type.</param>
/// <param name="Provider">Database provider object.</param>
/// <param name="Writer">Binary writer.</param>
/// <param name="Value">Value to serialize.</param>
public static void WriteArray(Type T, FilesProvider Provider, BinarySerializer Writer, Array Value)
{
if (Value == null)
{
Writer.WriteBits(ObjectSerializer.TYPE_NULL, 6);
}
else
{
Type LastType = T;
IObjectSerializer S = Provider.GetObjectSerializer(LastType);
Type ItemType;
bool Nullable;
Writer.WriteBits(ObjectSerializer.TYPE_ARRAY, 6);
Writer.WriteVariableLengthUInt64((ulong)Value.Length);
if (Nullable = S.IsNullable)
{
Writer.WriteBits(ObjectSerializer.TYPE_NULL, 6);
}
else
{
Writer.WriteBits(FilesProvider.GetFieldDataTypeCode(LastType), 6);
}
foreach (object Item in Value)
{
if (Item == null)
{
Writer.WriteBits(ObjectSerializer.TYPE_NULL, 6);
}
else
{
ItemType = Item.GetType();
if (ItemType != LastType)
{
S = Provider.GetObjectSerializer(ItemType);
LastType = ItemType;
}
S.Serialize(Writer, Nullable, true, Item);
}
}
}
}
private static void SaveLastObject(FilesProvider Provider, object LastObjectAdded)
{
if (LastObjectAdded != null)
{
IObjectSerializer Serializer = Provider.GetObjectSerializer(LastObjectAdded.GetType());
BinarySerializer Writer = new BinarySerializer(CollectionName, Encoding.UTF8);
Serializer.Serialize(Writer, false, false, LastObjectAdded);
byte[] Bin = Writer.GetSerialization();
System.IO.File.WriteAllBytes(ObjFileName, Bin);
}
}
/// <summary>
/// Checks if the filter applies to the object.
/// </summary>
/// <param name="Object">Object.</param>
/// <param name="Serializer">Corresponding object serializer.</param>
/// <param name="Provider">Files provider.</param>
/// <returns>If the filter can be applied.</returns>
public bool AppliesTo(object Object, IObjectSerializer Serializer, FilesProvider Provider)
{
if (!Serializer.TryGetFieldValue(this.FieldName, Object, out object Value))
{
Type T = Object.GetType();
if (Serializer.ValueType == T)
{
return(false);
}
if (T == this.prevType)
{
Serializer = this.prevSerializer;
}
else
{
Serializer = this.prevSerializer = Provider.GetObjectSerializer(T);
this.prevType = T;
}
if (!Serializer.TryGetFieldValue(this.FieldName, Object, out Value))
{
return(false);
}
}
Match M;
if (Value is string s)
{
if (this.regexCs is null)
{
this.regexCs = new Regex(RegularExpression, RegexOptions.Singleline);
}
M = this.regexCs.Match(s);
}
else if (Value is CaseInsensitiveString cis)
{
if (this.regexCi is null)
{
this.regexCi = new Regex(RegularExpression, RegexOptions.Singleline | RegexOptions.IgnoreCase);
}
M = this.regexCi.Match(s = cis.Value);
}
else
{
s = Value.ToString();
if (this.regexCs != null)
{
M = this.regexCs.Match(s);
}
else if (this.regexCi != null)
{
M = this.regexCi.Match(s);
}
else
{
this.regexCs = new Regex(RegularExpression, RegexOptions.Singleline);
M = this.regexCs.Match(s);
}
}
return(M.Success && M.Index == 0 && M.Length == s.Length);
}
