private static void CleanLowerLevel(LevelKey myLevelKey, IExpressionGraph myGraph, IGraphDB myGraphDB, SecurityToken mySecurityToken, Int64 myTransactionToken)
{
if (myLevelKey.Level > 0)
{
var previousLevelKey = myLevelKey.GetPredecessorLevel(myGraphDB, mySecurityToken, myTransactionToken);
HashSet <VertexInformation> toBeDeletedNodes = new HashSet <VertexInformation>();
foreach (var aLowerDBO in myGraph.Select(previousLevelKey, null, false))
{
if (aLowerDBO.HasOutgoingEdge(myLevelKey.LastEdge.AttributeID))
{
foreach (var aVertex in aLowerDBO.GetOutgoingEdge(myLevelKey.LastEdge.AttributeID).GetTargetVertices())
{
//took the vertextype id of the levelkey, because it is possible that the vertextypeid of the vertex is something inheritated
VertexInformation node = new VertexInformation(aVertex.VertexTypeID, aVertex.VertexID);
if (!myGraph.GetLevel(myLevelKey.Level).ExpressionLevels[myLevelKey].Nodes.ContainsKey(node))
{
//a reference occurred that is not in the higher level --> found a Zoidberg
toBeDeletedNodes.Add(node);
break;
}
}
}
}
foreach (var aToBeDeletedNode in toBeDeletedNodes)
{
myGraph.GetLevel(previousLevelKey.Level).RemoveNode(previousLevelKey, aToBeDeletedNode);
}
}
}
public SelectionElementAggregate(IGQLAggregate myBaseAggregate, string myAlias, EdgeList myEdgeList, LevelKey myLevelKey, IDChainDefinition myRelatedIDChainDefinition, AggregateDefinition myAggregateDefinition)
{
Alias = myAlias;
EdgeList = myEdgeList;
LevelKey = myLevelKey;
Aggregate = myBaseAggregate;
AggregateDefinition = myAggregateDefinition;
RelatedIDChainDefinition = myRelatedIDChainDefinition;
}
/// <summary>
/// Creates an validated asterisk chain for the given type.
/// </summary>
/// <param name="myIDChainPart">The type chain part.</param>
public IDChainDefinition(ChainPartTypeOrAttributeDefinition myIDChainPart, TypesOfSelect mySelType, String myTypeName = null)
{
RootPart = myIDChainPart;
IsValidated = true;
SelectType = mySelType;
_Edges = new List <EdgeKey>();
LevelKey = new LevelKey();
}
public override bool Equals(object obj)
{
LevelKey otherKey = obj as LevelKey;
if (otherKey != null)
{
return(otherKey.packName == packName && otherKey.levelNumber == levelNumber);
}
return(false);
}
static LevelKey convertToLevelKey(string entry)
{
//parse string on space
char[] delimchars = { ';' };
string[] words = entry.Split(delimchars);
//print (words[0]);
//print (words[1]);
int x = Int32.Parse(words[1]);
LevelKey key = new LevelKey(words[0], x);
return(key);
}
public static void deserializeDic(TextReader reader, IDictionary dictionary)
{
dictionary.Clear();
XmlSerializer serializer = new XmlSerializer(typeof(List <Entry>));
List <Entry> list = (List <Entry>)serializer.Deserialize(reader);
foreach (Entry entry in list)
{
LevelKey key = convertToLevelKey(entry.Key);
dictionary.Add(key, entry.Value);
}
}
public void addLevel(string pack, int level, int status)
{
LevelKey key = new LevelKey(pack, level);
if (completedLevels.ContainsKey(key))
{
completedLevels[key] = status;
}
else
{
completedLevels.Add(key, status);
}
}
public int getLevelStatus(string pack, int level)
{
LevelKey key = new LevelKey(pack, level);
if (completedLevels.ContainsKey(key))
{
return(completedLevels[key]);
}
else
{
//TODO change this to a better value
return(0);
}
}
private static void MatchData(DataContainer data,
IExpressionGraph resultGraph,
IGraphDB myGraphDB,
SecurityToken mySecurityToken,
Int64 myTransactionToken,
TypesOfOperators myTypeOfOperator,
BinaryOperator myOperator,
String myExpressionIndex)
{
#region data
LevelKey myLevelKey = CreateLevelKey(data.IDChainDefinitions.Item1, myGraphDB, mySecurityToken, myTransactionToken);
#endregion
var vertices = myGraphDB.GetVertices <List <IVertex> >(
mySecurityToken,
myTransactionToken,
new GraphDB.Request.RequestGetVertices(
new BinaryExpression(
new PropertyExpression(data.IDChainDefinitions.Item1.LastType.Name, data.IDChainDefinitions.Item1.LastAttribute.Name),
myOperator,
GenerateLiteral(data.Operands.Item1, ((IPropertyDefinition)data.IDChainDefinitions.Item1.LastAttribute).BaseType),
myExpressionIndex)),
(stats, vertexEnumerable) => vertexEnumerable.ToList());
foreach (var aVertex in vertices)
{
IntegrateInGraph(aVertex, resultGraph, myLevelKey, myTypeOfOperator);
}
if (resultGraph.ContainsLevelKey(myLevelKey))
{
#region clean lower levels
if (myTypeOfOperator == TypesOfOperators.AffectsLowerLevels)
{
CleanLowerLevel(myLevelKey, resultGraph, myGraphDB, mySecurityToken, myTransactionToken);
}
#endregion
}
else
{
resultGraph.AddEmptyLevel(myLevelKey);
}
}
/// <summary>
/// We need to add an empty level in case, the DBO should not be integerated. Otherwise the select does not know, either the level was never touched or
/// not added due to an expression
/// </summary>
/// <param name="myExpressionGraph"></param>
/// <param name="myLevelKey"></param>
private void ExcludeFromGraph(IExpressionGraph myExpressionGraph, LevelKey myLevelKey)
{
myExpressionGraph.AddEmptyLevel(myLevelKey);
}
private static void IntegrateInGraph(IVertex myDBObjectStream, IExpressionGraph myExpressionGraph, LevelKey myLevelKey, TypesOfOperators myTypesOfOperators)
{
if (myTypesOfOperators == TypesOfOperators.AffectsLowerLevels)
{
myExpressionGraph.AddNode(myDBObjectStream, myLevelKey, 1);
}
else
{
myExpressionGraph.AddNode(myDBObjectStream, myLevelKey, 0);
}
}
public override int GetHashCode()
{
return(Alias.GetHashCode() ^ EdgeList.GetHashCode() ^ Element.GetHashCode() ^ Selection.GetHashCode() ^ IsGroupedOrAggregated.GetHashCode() ^ LevelKey.GetHashCode() ^ Function.FuncName.GetHashCode());
}
/// <summary>
/// Validates the id chain if it is not already validated and returns all errors and warnings.
/// </summary>
public void Validate(GQLPluginManager myPluginManager, IGraphDB myGraphDB, SecurityToken mySecurityToken, Int64 myTransactionToken, Dictionary <String, IVertexType> myListOfReferences, Boolean allowUndefinedAttributes = false)
{
IsValidated = true;
int _HashCode = 0;
Object funcWorkingBase = null;
var curPart = RootPart;
if (curPart == null)
{
if (myListOfReferences.Count != 1)
{
throw new DuplicateReferenceOccurrenceException("");
}
_Reference = new Tuple <string, IVertexType>(myListOfReferences.First().Key, myListOfReferences.First().Value);
_LastType = _Reference.Item2;
_Edges = new List <EdgeKey>();
_Edges.Add(new EdgeKey(_LastType.ID));
SelectType = TypesOfSelect.Asterisk;
LevelKey = new LevelKey(_Edges, myGraphDB, mySecurityToken, myTransactionToken);
}
while (curPart != null)
{
#region Go through each part and try to fill lastType, lastAttribute etc...
if (curPart is ChainPartFuncDefinition)
{
#region ChainPartFuncDefinition
var funcPart = (curPart as ChainPartFuncDefinition);
funcPart.Validate(myPluginManager, myGraphDB, mySecurityToken, myTransactionToken);
if (!funcPart.Function.ValidateWorkingBase(funcWorkingBase, myGraphDB, mySecurityToken, myTransactionToken))
{
throw new InvalidFunctionBaseException(_LastAttribute.Name, funcPart.FuncName);
}
var returnType = funcPart.Function.GetReturnType();
if (returnType != null)
{
if (returnType is IAttributeDefinition)
{
//_LastAttribute = (returnType as DBTypeAttribute).GetValue();
//_LastType = GetDBTypeByAttribute(myDBContext, _LastAttribute);
}
else if (returnType is Object)
{
//_LastAttribute = null;
//_LastType = (returnType as DBType).GetValue();
}
else if (returnType is Type)
{
//_LastAttribute = null;
//_LastType = myDBContext.DBTypeManager.GetTypeByName((returnType as ADBBaseObject).ObjectName);
}
else
{
throw new InvalidFunctionReturnTypeException(funcPart.FuncName, returnType.GetType(), typeof(IAttributeDefinition), typeof(IVertexType), typeof(Object));
}
funcWorkingBase = returnType;
}
#endregion
}
else if (curPart is ChainPartTypeOrAttributeDefinition)
{
var typeOrAttr = curPart as ChainPartTypeOrAttributeDefinition;
#region Check whether it is a reference
if (_LastAttribute != null)
{
#region Any attribute on an undefined attributes or not user defined (reference) type is not allowed
if (_LastAttribute is UnstructuredProperty || _LastAttribute.Kind == AttributeType.Property)
{
throw new VertexAttributeIsNotDefinedException(typeOrAttr.TypeOrAttributeName);
}
#endregion
#region The previous attribute seems to be an reference attribute
_LastType = GetTargetVertexTypeByAttribute(_LastAttribute);
typeOrAttr.DBType = _LastType;
typeOrAttr.TypeAttribute = typeOrAttr.DBType.GetAttributeDefinition(typeOrAttr.TypeOrAttributeName);
_LastAttribute = typeOrAttr.TypeAttribute;
if (_LastAttribute == null)
{
#region Undefined attribute
if (allowUndefinedAttributes)
{
UndefinedAttribute = typeOrAttr.TypeOrAttributeName;
_LastAttribute = new UnstructuredProperty(UndefinedAttribute);
typeOrAttr.TypeAttribute = _LastAttribute;
AddNewEdgeKey(_LastType, _LastAttribute.ID);
}
else
{
throw new VertexAttributeIsNotDefinedException(typeOrAttr.TypeOrAttributeName);
}
#endregion
}
else
{
AddNewEdgeKey(_LastType, _LastAttribute.ID);
}
#endregion
}
else if (_LastType == null)
{
#region We did not resolve any type - so we should have a reference (U.Friends) or an undefined attribute
if (myListOfReferences.ContainsKey(typeOrAttr.TypeOrAttributeName))
{
#region The current TypeOrAttributeName is either an reference U
typeOrAttr.DBType = myListOfReferences[typeOrAttr.TypeOrAttributeName];
//Case 1: sth like "U" (where U stands for User)
#region Case 1
_LastType = typeOrAttr.DBType;
_Reference = new Tuple <string, IVertexType>(typeOrAttr.TypeOrAttributeName, typeOrAttr.DBType);
if (curPart.Next == null) // we just have an type definition
{
SelectType = TypesOfSelect.Asterisk;
_Edges.Add(new EdgeKey(_LastType.ID));
}
#endregion
//Case 2: an attribute like "Car" (of "User") is used and in parallel a similar written Type exists. In this case
// it is necessary to throw an error.
#region Case 2
var typesWithAttibute = (from aContextType in myListOfReferences
where (aContextType.Key != typeOrAttr.TypeOrAttributeName) && aContextType.Value.GetAttributeDefinition(typeOrAttr.TypeOrAttributeName) != null
select aContextType.Key).FirstOrDefault();
if (typesWithAttibute != null)
{
throw new DuplicateReferenceOccurrenceException(typeOrAttr.TypeOrAttributeName);
}
#endregion
#region Skip this part - this is a reference
RootPart = curPart.Next;
#endregion
#endregion
}
else
{
//Case 3:
// (3.1)In this case it must be an attribute. If it is used in an ambigous way, an exception would be thrown.
// (3.2)In this case it can be an undefined attribute or if it was used like an edge it is treated like does not exist (U.NotExists.Name)
#region case 3
#region sth like Name --> we have to find out the corresponding type
Boolean foundSth = false;
String reference = null;
foreach (var contextElement in myListOfReferences)
{
var tempAttr = contextElement.Value.GetAttributeDefinition(typeOrAttr.TypeOrAttributeName);
//tempTypeAttribute = (from aAttribute in tempType.AttributeLookupTable where aAttribute.Value.Name == tempTypeOrAttributeName select aAttribute.Value).FirstOrDefault();
if (tempAttr != null)
{
typeOrAttr.DBType = contextElement.Value;
reference = contextElement.Key;
if (foundSth == true)
{
throw new AmbiguousVertexAttributeException("The attribute or type \"" + typeOrAttr.TypeOrAttributeName + "\" has been used ambigous.");
}
else
{
typeOrAttr.TypeAttribute = tempAttr;
foundSth = true;
}
}
}
#endregion
if (foundSth)
{
#region 3.1
//_Edges.Add(new EdgeKey(typeOrAttr.DBType.VertexID, typeOrAttr.TypeAttribute.VertexID));
_LastAttribute = typeOrAttr.TypeAttribute;
_LastType = typeOrAttr.DBType;
_Reference = new Tuple <string, IVertexType>(reference, typeOrAttr.DBType); //T1 -->key in context dictionary
_Edges.ForEach(item => _HashCode = _HashCode ^ item.GetHashCode());
AddNewEdgeKey(_LastType, _LastAttribute.ID);
#endregion
}
else
{
#region 3.2 - Undefined attribute or attribute does not exist
if (curPart.Next != null || !allowUndefinedAttributes)
{
#region Calling an attribute on an undefined attribute is not allowed
throw new VertexAttributeIsNotDefinedException(typeOrAttr.TypeOrAttributeName);
#endregion
}
else
{
#region This is the last unknown attribute and with this, it is an undefined attribute
UndefinedAttribute = typeOrAttr.TypeOrAttributeName;
if (myListOfReferences.Count != 1)
{
throw new AmbiguousVertexAttributeException("The attribute or type \"" + typeOrAttr.TypeOrAttributeName + "\" has been used ambigous.");
}
else
{
var theRef = myListOfReferences.First();
_Reference = new Tuple <string, IVertexType>(theRef.Key, theRef.Value); //T1 -->key in context dictionary
_LastType = _Reference.Item2;
_LastAttribute = new UnstructuredProperty(UndefinedAttribute);
typeOrAttr.TypeAttribute = _LastAttribute;
typeOrAttr.DBType = _LastType;
AddNewEdgeKey(_LastType, _LastAttribute.ID);
}
#endregion
}
//_isValidated = false;
//_invalidNodeParts.AddRange(parseNode.ChildNodes);
#endregion
}
#endregion
}
#endregion
}
else
{
#region This is a regular attribute after a reference (U.Name)
typeOrAttr.DBType = _LastType;
typeOrAttr.TypeAttribute = typeOrAttr.DBType.GetAttributeDefinition(typeOrAttr.TypeOrAttributeName);
_LastAttribute = typeOrAttr.TypeAttribute;
if (_LastAttribute == null)
{
if (curPart.Next != null || !allowUndefinedAttributes)
{
#region Calling an attribute on an undefined attribute is not allowed - so we assume a typo
throw new VertexAttributeIsNotDefinedException(typeOrAttr.TypeOrAttributeName);
//continue;
#endregion
}
else
{
UndefinedAttribute = typeOrAttr.TypeOrAttributeName;
_LastAttribute = new UnstructuredProperty(UndefinedAttribute);
typeOrAttr.TypeAttribute = _LastAttribute;
AddNewEdgeKey(_LastType, _LastAttribute.ID);
}
}
else
{
AddNewEdgeKey(_LastType, _LastAttribute.ID);
}
#endregion
}
#endregion
funcWorkingBase = _LastAttribute;
}
curPart = curPart.Next;
#endregion
}
LevelKey = new LevelKey(Edges, myGraphDB, mySecurityToken, myTransactionToken);
}
/// <summary>
/// Initializes a new instance of the InvalidLevelKeyOperationException using a level key.
/// </summary>
/// <param name="myLevelKeyA"></param>
/// <param name="myLevelKeyB"></param>
/// <param name="myOperation"></param>
/// <param name="innerException">The exception that is the cause of the current exception, this parameter can be NULL.</param>
public InvalidLevelKeyOperationException(LevelKey myLevelKeyA, LevelKey myLevelKeyB, String myOperation, Exception innerException = null) : base(innerException)
{
LevelKeyA = myLevelKeyA;
LevelKeyB = myLevelKeyB;
Operation = myOperation;
}
/// <summary>
/// Initializes a new instance of the InvalidLevelKeyOperationException using an edge key.
/// </summary>
/// <param name="myLevelKey"></param>
/// <param name="myEdgeKey"></param>
/// <param name="myOperation"></param>
/// <param name="innerException">The exception that is the cause of the current exception, this parameter can be NULL.</param>
public InvalidLevelKeyOperationException(LevelKey myLevelKey, EdgeKey myEdgeKey, String myOperation, Exception innerException = null) : base(innerException)
{
LevelKeyA = myLevelKey;
EdgeKeyA = myEdgeKey;
Operation = myOperation;
}