/// <summary>
/// Checks if the attribute names on vertex type definitions are unique, containing parent myAttributes.
/// </summary>
/// <param name="myTopologicallySortedPointer">A pointer to a vertex type predefinitions in a topologically sorted linked list.</param>
/// <param name="myAttributes">A dictionary vertex type name to attribute names, that is build up during the process of CanAddCheckWithFS.</param>
/// <param name="myTransaction">A transaction token for this operation.</param>
/// <param name="mySecurity">A security token for this operation.</param>
private void CanAddCheckAttributeNameUniquenessWithFS(LinkedListNode<VertexTypePredefinition> myTopologicallySortedPointer, IDictionary<string, HashSet<string>> myAttributes, TransactionToken myTransaction, SecurityToken mySecurity)
{
var parentPredef = GetParentPredefinitionOnTopologicallySortedList(myTopologicallySortedPointer);
if (parentPredef == null)
{
//Get the parent type from FS.
var parent = Get(myTopologicallySortedPointer.Value.SuperVertexTypeName, myTransaction, mySecurity);
if (parent == null)
//No parent type was found.
throw new InvalidBaseVertexTypeException(myTopologicallySortedPointer.Value.SuperVertexTypeName);
if (parent.GetProperty<bool>((long)AttributeDefinitions.BaseTypeDotIsSealed))
//The parent type is sealed.
throw new SealedBaseVertexTypeException(myTopologicallySortedPointer.Value.VertexTypeName, parent.GetPropertyAsString((long)AttributeDefinitions.AttributeDotName));
var parentType = new VertexType(parent);
var attributeNames = parentType.GetAttributeDefinitions(true).Select(_=>_.Name);
myAttributes[myTopologicallySortedPointer.Value.VertexTypeName] = new HashSet<string>(attributeNames);
}
else
{
myAttributes[myTopologicallySortedPointer.Value.VertexTypeName] = new HashSet<string>(myAttributes[parentPredef.Value.VertexTypeName]);
}
var attributeNamesSet = myAttributes[myTopologicallySortedPointer.Value.VertexTypeName];
CheckIncomingEdgesUniqueName(myTopologicallySortedPointer.Value, attributeNamesSet);
CheckOutgoingEdgesUniqueName(myTopologicallySortedPointer.Value, attributeNamesSet);
CheckPropertiesUniqueName(myTopologicallySortedPointer.Value, attributeNamesSet);
}
private IEnumerable<IVertexType> Add(IEnumerable<VertexTypePredefinition> myVertexTypeDefinitions, TransactionToken myTransaction, SecurityToken mySecurity)
{
//Perf: count is necessary, fast if it is an ICollection
var count = myVertexTypeDefinitions.Count();
//This operation reserves #count ids for this operation.
var firstTypeID = _idManager.VertexTypeID.ReserveIDs(count);
//Contains dictionary of vertex name to vertex predefinition.
var defsByVertexName = CanAddCheckDuplicates(myVertexTypeDefinitions);
//Contains dictionary of parent vertex name to list of vertex predefinitions.
var defsByParentVertexName = myVertexTypeDefinitions
.GroupBy(def => def.SuperVertexTypeName)
.ToDictionary(group => group.Key, group => group.AsEnumerable());
//Contains list of vertex predefinitions sorted topologically.
var defsTopologically = CanAddSortTopolocically(defsByVertexName, defsByParentVertexName);
CanAddCheckWithFS(defsTopologically, defsByVertexName, myTransaction, mySecurity);
var typeInfos = GenerateTypeInfos(defsTopologically, defsByVertexName, firstTypeID, myTransaction, mySecurity);
//we can add each type separately
var creationDate = DateTime.UtcNow.ToBinary();
var resultPos = 0;
var result = new IVertex[count];
//now we store each vertex type
for (var current = defsTopologically.First; current != null; current = current.Next)
{
var newVertexType = BaseGraphStorageManager.StoreVertexType(
_vertexManager.ExecuteManager.VertexStore,
typeInfos[current.Value.VertexTypeName].VertexInfo,
current.Value.VertexTypeName,
current.Value.Comment,
creationDate,
current.Value.IsAbstract,
current.Value.IsSealed,
true,
typeInfos[current.Value.SuperVertexTypeName].VertexInfo,
null,
mySecurity,
myTransaction);
result[resultPos++] = newVertexType;
_indexManager.GetIndex(BaseUniqueIndex.VertexTypeDotName).Add(current.Value.VertexTypeName, typeInfos[current.Value.VertexTypeName].VertexInfo.VertexID);
_nameIndex.Add(current.Value.VertexTypeName, typeInfos[current.Value.VertexTypeName].VertexInfo.VertexID);
}
#region Store Attributes
//The order of adds is important. First property, then outgoing edges (that might point to properties) and finally incoming edges (that might point to outgoing edges)
//Do not try to merge it into one for block.
#region Store properties
for (var current = defsTopologically.First; current != null; current = current.Next)
{
if (current.Value.Properties == null)
continue;
var firstAttrID = _idManager[(long)BaseTypes.Attribute].ReserveIDs(current.Value.PropertyCount);
var currentExternID = typeInfos[current.Value.VertexTypeName].AttributeCountWithParents - current.Value.PropertyCount - 1;
foreach (var prop in current.Value.Properties)
{
BaseGraphStorageManager.StoreProperty(
_vertexManager.ExecuteManager.VertexStore,
new VertexInformation((long)BaseTypes.Property, firstAttrID++),
prop.AttributeName,
prop.Comment,
creationDate,
prop.IsMandatory,
prop.Multiplicity,
prop.DefaultValue,
true,
typeInfos[current.Value.VertexTypeName].VertexInfo,
ConvertBasicType(prop.AttributeType),
mySecurity,
myTransaction);
}
}
#endregion
#region Store binary properties
for (var current = defsTopologically.First; current != null; current = current.Next)
{
if (current.Value.BinaryProperties == null)
continue;
var firstAttrID = _idManager[(long)BaseTypes.Attribute].ReserveIDs(current.Value.BinaryPropertyCount);
var currentExternID = typeInfos[current.Value.VertexTypeName].AttributeCountWithParents - current.Value.PropertyCount - current.Value.BinaryPropertyCount - 1;
foreach (var prop in current.Value.BinaryProperties)
{
BaseGraphStorageManager.StoreBinaryProperty(
_vertexManager.ExecuteManager.VertexStore,
new VertexInformation((long)BaseTypes.BinaryProperty, firstAttrID++),
prop.AttributeName,
prop.Comment,
true,
creationDate,
typeInfos[current.Value.VertexTypeName].VertexInfo,
mySecurity,
myTransaction);
}
}
#endregion
#region Store outgoing edges
for (var current = defsTopologically.First; current != null; current = current.Next)
{
if (current.Value.OutgoingEdges == null)
continue;
var firstAttrID = _idManager[(long)BaseTypes.Attribute].ReserveIDs(current.Value.OutgoingEdgeCount);
var currentExternID = typeInfos[current.Value.VertexTypeName].AttributeCountWithParents - current.Value.PropertyCount - current.Value.OutgoingEdgeCount - current.Value.BinaryPropertyCount - 1;
foreach (var edge in current.Value.OutgoingEdges)
{
VertexInformation? innerEdgeType = null;
if (edge.Multiplicity == EdgeMultiplicity.MultiEdge)
{
innerEdgeType = new VertexInformation((long)BaseTypes.EdgeType, _edgeManager.ExecuteManager.GetEdgeType(edge.InnerEdgeType, myTransaction, mySecurity).ID);
}
BaseGraphStorageManager.StoreOutgoingEdge(
_vertexManager.ExecuteManager.VertexStore,
new VertexInformation((long)BaseTypes.OutgoingEdge, firstAttrID++),
edge.AttributeName,
edge.Comment,
true,
creationDate,
edge.Multiplicity,
typeInfos[current.Value.VertexTypeName].VertexInfo,
new VertexInformation((long)BaseTypes.EdgeType, _edgeManager.ExecuteManager.GetEdgeType(edge.EdgeType, myTransaction, mySecurity).ID),
innerEdgeType,
typeInfos[edge.AttributeType].VertexInfo,
mySecurity,
myTransaction);
}
}
#endregion
#region Store incoming edges
for (var current = defsTopologically.First; current != null; current = current.Next)
{
if (current.Value.IncomingEdges == null)
continue;
var firstAttrID = _idManager[(long)BaseTypes.Attribute].ReserveIDs(current.Value.IncomingEdgeCount);
var currentExternID = typeInfos[current.Value.VertexTypeName].AttributeCountWithParents - current.Value.PropertyCount - current.Value.BinaryPropertyCount - current.Value.OutgoingEdgeCount - current.Value.IncomingEdgeCount - 1;
foreach (var edge in current.Value.IncomingEdges)
{
BaseGraphStorageManager.StoreIncomingEdge(
_vertexManager.ExecuteManager.VertexStore,
new VertexInformation((long)BaseTypes.IncomingEdge, firstAttrID++),
edge.AttributeName,
edge.Comment,
true,
creationDate,
typeInfos[current.Value.VertexTypeName].VertexInfo,
GetOutgoingEdgeVertexInformation(GetTargetVertexTypeFromAttributeType(edge.AttributeType), GetTargetEdgeNameFromAttributeType(edge.AttributeType), myTransaction, mySecurity),
mySecurity,
myTransaction);
}
}
#endregion
var resultTypes = new VertexType[result.Length];
//reload the IVertex objects, that represents the type.
for (int i = 0; i < result.Length; i++)
{
result[i] = _vertexManager.ExecuteManager.VertexStore.GetVertex(mySecurity, myTransaction,
result[i].VertexID,
result[i].VertexTypeID, String.Empty);
var newVertexType = new VertexType(result[i]);
resultTypes[i] = newVertexType;
_baseTypes.Add(typeInfos[newVertexType.Name].VertexInfo.VertexID, newVertexType);
}
#endregion
#region Add Indices
if (_indexManager != null)
{
var uniqueIdx = _indexManager.GetBestMatchingIndexName(true, false, false);
var indexIdx = _indexManager.GetBestMatchingIndexName(false, false, false);
resultPos = 0;
for (var current = defsTopologically.First; current != null; current = current.Next, resultPos++)
{
#region Uniqueness
#region own uniques
if (current.Value.Uniques != null)
{
var indexPredefs = current.Value.Uniques.Select(unique =>
new IndexPredefinition().AddProperty(unique.Properties).SetIndexType(uniqueIdx).SetVertexType(current.Value.VertexTypeName));
var indexDefs = indexPredefs.Select(indexPredef => _indexManager.CreateIndex(indexPredef, mySecurity, myTransaction, false)).ToArray();
//only own unique indices are connected to the vertex type on the UniquenessDefinitions attribute
ConnectVertexToUniqueIndex(typeInfos[current.Value.VertexTypeName], indexDefs, mySecurity, myTransaction);
}
#endregion
#region parent uniques
foreach (var unique in resultTypes[resultPos].ParentVertexType.GetUniqueDefinitions(true))
{
_indexManager.CreateIndex(
new IndexPredefinition().AddProperty(unique.UniquePropertyDefinitions.Select(x => x.Name)).SetIndexType(uniqueIdx).SetVertexType(unique.DefiningVertexType.Name),
mySecurity,
myTransaction,
false);
}
#endregion
#endregion
#region Indices
if (current.Value.Indices != null)
foreach (var index in current.Value.Indices)
{
_indexManager.CreateIndex(index, mySecurity, myTransaction);
}
foreach (var index in resultTypes[resultPos].ParentVertexType.GetIndexDefinitions(true))
{
_indexManager.CreateIndex(
new IndexPredefinition().AddProperty(index.IndexedProperties.Select(x => x.Name)).SetVertexType(current.Value.VertexTypeName).SetIndexType(index.IndexTypeName),
mySecurity,
myTransaction);
}
#endregion
}
}
#endregion
CleanUpTypes();
return resultTypes;
}
public override IVertexType GetVertexType(long myTypeId, TransactionToken myTransaction, SecurityToken mySecurity)
{
#region get static types
if (_baseTypes.ContainsKey(myTypeId))
{
return _baseTypes[myTypeId];
}
#endregion
#region get from fs
var vertex = Get(myTypeId, myTransaction, mySecurity);
if (vertex == null)
throw new KeyNotFoundException(string.Format("A vertex type with ID {0} was not found.", myTypeId));
var result = new VertexType(vertex);
_baseTypes.Add(result.ID, result);
_nameIndex.Add(result.Name, result.ID);
return result;
#endregion
}
public override IVertexType GetVertexType(string myTypeName, TransactionToken myTransaction, SecurityToken mySecurity)
{
if (String.IsNullOrWhiteSpace(myTypeName))
throw new ArgumentOutOfRangeException("myTypeName", "The type name must contain at least one character.");
#region get static types
if (_nameIndex.ContainsKey(myTypeName))
{
return _baseTypes[_nameIndex[myTypeName]];
}
#endregion
#region get from fs
var vertex = Get(myTypeName, myTransaction, mySecurity);
if (vertex == null)
throw new KeyNotFoundException(string.Format("A vertex type with name {0} was not found.", myTypeName));
var result = new VertexType(vertex);
_baseTypes.Add(result.ID, result);
_nameIndex.Add(result.Name, result.ID);
return result;
#endregion
}
private Dictionary<String, TypeInfo> GenerateTypeInfos(
LinkedList<VertexTypePredefinition> myDefsSortedTopologically,
IDictionary<string, VertexTypePredefinition> myDefsByName,
long myFirstID,
TransactionToken myTransaction,
SecurityToken mySecurity)
{
var neededVertexTypes = new HashSet<string>();
foreach (var def in myDefsByName)
{
neededVertexTypes.Add(def.Value.VertexTypeName);
neededVertexTypes.Add(def.Value.SuperVertexTypeName);
if (def.Value.OutgoingEdges != null)
foreach (var edge in def.Value.OutgoingEdges)
{
neededVertexTypes.Add(edge.AttributeType);
}
}
//At most all vertex types are needed.
var result = new Dictionary<String, TypeInfo>((int)myFirstID + myDefsByName.Count);
foreach (var vertexType in neededVertexTypes)
{
if (myDefsByName.ContainsKey(vertexType))
{
result.Add(vertexType, new TypeInfo
{
AttributeCountWithParents = myDefsByName[vertexType].AttributeCount,
VertexInfo = new VertexInformation((long)BaseTypes.VertexType, myFirstID++)
});
}
else
{
var vertex = _vertexManager.ExecuteManager.GetSingleVertex(new BinaryExpression(new SingleLiteralExpression(vertexType), BinaryOperator.Equals, _vertexTypeNameExpression), myTransaction, mySecurity);
IVertexType neededVertexType = new VertexType(vertex);
result.Add(vertexType, new TypeInfo
{
AttributeCountWithParents = neededVertexType.GetAttributeDefinitions(true).LongCount(),
VertexInfo = new VertexInformation((long)BaseTypes.VertexType, BaseGraphStorageManager.GetUUID(vertex))
});
}
}
//accumulate attribute counts
for (var current = myDefsSortedTopologically.First; current != null; current = current.Next)
{
if (!result.ContainsKey(current.Value.VertexTypeName))
continue;
var info = result[current.Value.VertexTypeName];
info.AttributeCountWithParents = info.AttributeCountWithParents + result[current.Value.SuperVertexTypeName].AttributeCountWithParents;
result[current.Value.VertexTypeName] = info;
}
return result;
}