public static RequestUpdate MakeRequestUpdate(ServiceUpdateChangeset myUpdateChangeset) { #region PreRequest RequestGetVertices PreRequest = null; if (myUpdateChangeset.Expression == null) { if (myUpdateChangeset.VertexTypeName != null) { PreRequest = MakeRequestGetVertices(myUpdateChangeset.VertexTypeName, myUpdateChangeset.VertexIDs); } else { PreRequest = MakeRequestGetVertices(myUpdateChangeset.VertexTypeID, myUpdateChangeset.VertexIDs); } } else { PreRequest = MakeRequestGetVertices(myUpdateChangeset.Expression); } RequestUpdate Request = new RequestUpdate(PreRequest); if (!String.IsNullOrEmpty(myUpdateChangeset.Comment)) Request.UpdateComment(myUpdateChangeset.Comment); if (!String.IsNullOrEmpty(myUpdateChangeset.Edition)) Request.UpdateEdition(myUpdateChangeset.Edition); #endregion #region element collection if (myUpdateChangeset.AddedElementsToCollectionProperties != null) { foreach (var element in myUpdateChangeset.AddedElementsToCollectionProperties) { Request.AddElementsToCollection(element.Key, element.Value); } } if (myUpdateChangeset.RemovedElementsFromCollectionProperties != null) { foreach (var element in myUpdateChangeset.RemovedElementsFromCollectionProperties) { Request.RemoveElementsFromCollection(element.Key, element.Value); } } if (myUpdateChangeset.AddedElementsToCollectionEdges != null) { foreach (var element in myUpdateChangeset.AddedElementsToCollectionEdges) { Request.AddElementsToCollection(element.Key, element.Value.ToEdgePredefinition()); } } if (myUpdateChangeset.RemovedElementsFromCollectionEdges != null) { foreach (var element in myUpdateChangeset.RemovedElementsFromCollectionEdges) { Request.RemoveElementsFromCollection(element.Key, element.Value.ToEdgePredefinition()); } } #endregion #region Properties if (myUpdateChangeset.UpdatedStructuredProperties != null) { foreach (var item in myUpdateChangeset.UpdatedStructuredProperties) { Request.UpdateStructuredProperty(item.Key, item.Value); } } if (myUpdateChangeset.UpdatedUnstructuredProperties != null) { foreach (var item in myUpdateChangeset.UpdatedUnstructuredProperties) { Request.UpdateUnstructuredProperty(item.Key, item.Value); } } if (myUpdateChangeset.UpdatedUnknownProperties != null) { foreach (var item in myUpdateChangeset.UpdatedUnknownProperties) { Request.UpdateUnknownProperty(item.Key, item.Value); } } #endregion #region Update Edges if (myUpdateChangeset.UpdatedOutgoingEdges != null) { foreach (var Edge in myUpdateChangeset.UpdatedOutgoingEdges) { Request.UpdateEdge(Edge.ToEdgePredefinition()); } } if (myUpdateChangeset.UpdateOutgoingEdgesProperties != null) { foreach (var Edge in myUpdateChangeset.UpdateOutgoingEdgesProperties) { Request.UpdateEdge(Edge.ToSingleEdgeUpdateDefinition()); } } #endregion if (myUpdateChangeset.RemovedAttributes != null) { foreach (var item in myUpdateChangeset.RemovedAttributes) { Request.RemoveAttribute(item); } } return Request; }
private void ProcessAttributeAssignOrUpdateList(IVertexType vertexType, GQLPluginManager myPluginManager, IGraphDB myGraphDB, SecurityToken mySecurityToken, TransactionToken myTransactionToken, AttributeAssignOrUpdateList attributeAssignOrUpdateList, ref RequestUpdate result) { Type myRequestedType; switch (attributeAssignOrUpdateList.CollectionDefinition.CollectionType) { case CollectionType.Set: #region set if (((TupleDefinition)attributeAssignOrUpdateList.CollectionDefinition.TupleDefinition).All(_ => _.Value is ValueDefinition)) { #region base-set //has to be list of comparables SetCollectionWrapper setWrapper = new SetCollectionWrapper(); if (vertexType.HasProperty(attributeAssignOrUpdateList.AttributeIDChain.ContentString)) { myRequestedType = ((IPropertyDefinition)vertexType.GetAttributeDefinition(attributeAssignOrUpdateList.AttributeIDChain.ContentString)).BaseType; } else { myRequestedType = typeof(String); } foreach (var aTupleElement in (TupleDefinition)attributeAssignOrUpdateList.CollectionDefinition.TupleDefinition) { setWrapper.Add(((ValueDefinition)aTupleElement.Value).Value.ConvertToIComparable(myRequestedType)); } result.AddElementsToCollection(attributeAssignOrUpdateList.AttributeIDChain.ContentString, setWrapper); #endregion } else { #region edge-set EdgePredefinition edgeDefinition = new EdgePredefinition(attributeAssignOrUpdateList.AttributeIDChain.ContentString); if (!vertexType.HasAttribute(attributeAssignOrUpdateList.AttributeIDChain.ContentString)) { throw new InvalidVertexAttributeException(String.Format("The vertex type {0} has no attribute named {1}.", vertexType.Name, attributeAssignOrUpdateList.AttributeIDChain.ContentString)); } IAttributeDefinition attribute = vertexType.GetAttributeDefinition(attributeAssignOrUpdateList.AttributeIDChain.ContentString); foreach (var aTupleElement in (TupleDefinition)attributeAssignOrUpdateList.CollectionDefinition.TupleDefinition) { if (aTupleElement.Value is BinaryExpressionDefinition) { #region BinaryExpressionDefinition var targetVertexType = ((IOutgoingEdgeDefinition)attribute).TargetVertexType; foreach (var aVertex in ProcessBinaryExpression( (BinaryExpressionDefinition)aTupleElement.Value, myPluginManager, myGraphDB, mySecurityToken, myTransactionToken, targetVertexType)) { var inneredge = new EdgePredefinition().AddVertexID(aVertex.VertexTypeID, aVertex.VertexID); foreach (var aStructuredProperty in aTupleElement.Parameters) { inneredge.AddUnknownProperty(aStructuredProperty.Key, aStructuredProperty.Value); } edgeDefinition.AddEdge(inneredge); } #endregion } else { throw new NotImplementedQLException("TODO"); } } if (attributeAssignOrUpdateList.Assign) { result.UpdateEdge(edgeDefinition); } else { result.AddElementsToCollection(attributeAssignOrUpdateList.AttributeIDChain.ContentString, edgeDefinition); } #endregion } #endregion return; case CollectionType.List: #region list //has to be list of comparables ListCollectionWrapper listWrapper = new ListCollectionWrapper(); if (vertexType.HasProperty(attributeAssignOrUpdateList.AttributeIDChain.ContentString)) { myRequestedType = ((IPropertyDefinition)vertexType.GetAttributeDefinition(attributeAssignOrUpdateList.AttributeIDChain.ContentString)).BaseType; } else { myRequestedType = typeof(String); } foreach (var aTupleElement in (TupleDefinition)attributeAssignOrUpdateList.CollectionDefinition.TupleDefinition) { listWrapper.Add(((ValueDefinition)aTupleElement.Value).Value.ConvertToIComparable(myRequestedType)); } result.AddElementsToCollection(attributeAssignOrUpdateList.AttributeIDChain.ContentString, listWrapper); #endregion return; case CollectionType.SetOfUUIDs: #region SetOfUUIDs EdgePredefinition anotheredgeDefinition = new EdgePredefinition(attributeAssignOrUpdateList.AttributeIDChain.ContentString); foreach (var aTupleElement in ((VertexTypeVertexIDCollectionNode)attributeAssignOrUpdateList.CollectionDefinition.TupleDefinition).Elements) { foreach (var aVertexIDTuple in aTupleElement.VertexIDs) { var innerEdge = new EdgePredefinition(); foreach (var aStructuredProperty in aVertexIDTuple.Item2) { innerEdge.AddUnknownProperty(aStructuredProperty.Key, aStructuredProperty.Value); } innerEdge.AddVertexID(aTupleElement.ReferencedVertexTypeName, aVertexIDTuple.Item1); anotheredgeDefinition.AddEdge(innerEdge); } } result.AddElementsToCollection(attributeAssignOrUpdateList.AttributeIDChain.ContentString, anotheredgeDefinition); #endregion return; default: return; } }
/// <summary> /// Reads an edge information from the GraphML File and inserts /// the edge in the GraphDB by altering the existing source vertex. /// /// Currently only the "weight" attribute will be considered and /// has to be annotated correctly (see class documentation). /// </summary> /// <param name='myReader'> /// XmlReader /// </param> private void ReadEdge(XmlReader myReader) { #region read edge data var sourceID = ReadVertexID(myReader, GraphMLTokens.SOURCE); var targetID = ReadVertexID(myReader, GraphMLTokens.TARGET); if(!_VertexIDMapper.ContainsKey(sourceID) || !_VertexIDMapper.ContainsKey(targetID)) { throw new InvalidDataException(String.Format( "Source or Target vertexID for edge ({0},{1}) doesn't exist", sourceID, targetID)); } // get the weight var edgeWeight = ReadEdgeWeight(myReader); #endregion #region create edge (update vertex) var hyperEdge = new EdgePredefinition(_EdgeTypeName); hyperEdge.AddEdge(new EdgePredefinition() .AddVertexID(_VertexTypeName, _VertexIDMapper[targetID]) .AddUnknownProperty( GraphMLTokens.EDGE_WEIGHT, Convert.ChangeType(edgeWeight, typeof(String), CultureInfo.GetCultureInfo("en-us")) )); var requestUpdate = new RequestUpdate(new RequestGetVertices(_VertexTypeName, new List<long>() { _VertexIDMapper[sourceID] })); requestUpdate.AddElementsToCollection(_EdgeTypeName, hyperEdge); // process the update _GraphDB.Update<IEnumerable<IVertex>>( _SecurityToken, _TransactionToken, requestUpdate, (stats, v) => v ); _EdgeCount++; #endregion }