public static Message Deserialize(BinaryReader reader)
{
int structType = reader.ReadInt32();
int pathCount = reader.ReadInt32();
string[] path = new string[pathCount];
for (int i = 0; i < pathCount; i++)
{
int sizeOfString = reader.ReadInt32();
byte[] pathNameBytes = reader.ReadBytes(sizeOfString);
path[i] = Encoding.Unicode.GetString(pathNameBytes);
}
KeyDescriptor keyDescriptor = KeyDescriptor.Deserialize(reader);
RecordDescriptor recordDescriptor = RecordDescriptor.Deserialize(reader);
ILocator locator = STSdb4.Database.Locator.Obtain(structType, keyDescriptor, recordDescriptor, path);
IndexPersistOperationCollection persistOperations = new IndexPersistOperationCollection(locator);
IOperationCollection operations = persistOperations.Read(reader);
return(new Message(operations));
}
/// <summary>
/// Build:
/// - Apply
/// - PersistDataContainer
/// - PersistOperations
/// - PersistKey
/// - KeyComparer
/// - KeyEqualityComparer
///
/// instances from StructType, keySlotTypes & recordSlotTypes
/// </summary>
protected virtual void BuildMembers()
{
//apply
switch (StructureType)
{
case STSdb4.Database.StructureType.XINDEX: Apply = new XIndexApply(this); break;
case STSdb4.Database.StructureType.XFILE: Apply = new XStreamApply(this); break;
}
//comparer & equality comparer
KeyComparer = new DataComparer(KeyDescriptor.DataType, KeyDescriptor.CompareOptions);
KeyEqualityComparer = new DataEqualityComparer(KeyDescriptor.DataType, KeyDescriptor.CompareOptions);
bool compressKeys = KeyDescriptor.CompressData;
bool compressRecords = RecordDescriptor.CompressData;
if (compressKeys || compressRecords)
{
PersistDataContainer = new IndexPersistDataContainer(this, KeyDescriptor.DataType, RecordDescriptor.DataType, compressKeys, compressRecords);
}
else
{
PersistDataContainer = new IndexPersistDataContainerRaw(this, KeyDescriptor.DataType, RecordDescriptor.DataType);
}
PersistOperations = new IndexPersistOperationCollection(this);
PersistKey = new DataPersist(KeyDescriptor.DataType);
}
public void Serialize(BinaryWriter writer)
{
Locator locator = (Locator)Operations.Locator;
writer.Write(locator.StructureType);
writer.Write(locator.Length);
for (int i = 0; i < locator.Length; i++)
{
byte[] pathNameBytes = Encoding.Unicode.GetBytes(locator[i]);
writer.Write(pathNameBytes.Length);
writer.Write(pathNameBytes);
}
locator.KeyDescriptor.Serialize(writer);
locator.RecordDescriptor.Serialize(writer);
IndexPersistOperationCollection operationPersist = new IndexPersistOperationCollection(locator);
operationPersist.Write(writer, Operations);
}
