public override void Delete(RequestDelete myDeleteRequest, SecurityToken mySecurityToken, Int64 myTransactionToken)
{
var toBeProcessedVertices = GetVertices(myDeleteRequest.ToBeDeletedVertices, myTransactionToken, mySecurityToken);
if (myDeleteRequest.ToBeDeletedAttributes.IsNotNullOrEmpty())
{
List<long> toBeDeletedStructuredPropertiesUpdate = new List<long>();
List<String> tobeDeletedUnstructuredProperties = new List<String>();
List<long> toBeDeletedBinaryProperties = new List<long>();
List<long> toBeDeletedSingleEdges = new List<long>();
List<long> toBeDeletedHyperEdges = new List<long>();
Dictionary<Int64, IPropertyDefinition> toBeDeletedProperties = new Dictionary<long, IPropertyDefinition>();
Dictionary<Int64, IOutgoingEdgeDefinition> toBeDeletedEdges = new Dictionary<long, IOutgoingEdgeDefinition>();
Dictionary<Int64, IBinaryPropertyDefinition> toBeDeletedBinaries = new Dictionary<long, IBinaryPropertyDefinition>();
HashSet<String> toBeDeletedUndefinedAttributes = new HashSet<string>();
//remove the attributes
foreach (var aVertexTypeGroup in toBeProcessedVertices.GroupBy(_ => _.VertexTypeID))
{
var vertexType = _vertexTypeManager.ExecuteManager.GetType(aVertexTypeGroup.Key, myTransactionToken, mySecurityToken);
#region prepare update definition
toBeDeletedStructuredPropertiesUpdate.Clear();
StructuredPropertiesUpdate structuredProperties = new StructuredPropertiesUpdate(null, toBeDeletedStructuredPropertiesUpdate);
tobeDeletedUnstructuredProperties.Clear();
UnstructuredPropertiesUpdate unstructuredProperties = new UnstructuredPropertiesUpdate(null, tobeDeletedUnstructuredProperties);
toBeDeletedBinaryProperties.Clear();
BinaryPropertiesUpdate binaryProperties = new BinaryPropertiesUpdate(null, toBeDeletedBinaryProperties);
toBeDeletedSingleEdges.Clear();
SingleEdgeUpdate singleEdges = new SingleEdgeUpdate(null, toBeDeletedSingleEdges);
toBeDeletedHyperEdges.Clear();
HyperEdgeUpdate hyperEdges = new HyperEdgeUpdate(null, toBeDeletedHyperEdges);
VertexUpdateDefinition update = new VertexUpdateDefinition(null, structuredProperties, unstructuredProperties, binaryProperties, singleEdges, hyperEdges);
#endregion
#region sorting attributes
toBeDeletedProperties.Clear();
toBeDeletedEdges.Clear();
toBeDeletedBinaries.Clear();
toBeDeletedUndefinedAttributes.Clear();
foreach (var aToBeDeleted in myDeleteRequest.ToBeDeletedAttributes)
{
if (!vertexType.HasAttribute(aToBeDeleted))
{
toBeDeletedUndefinedAttributes.Add(aToBeDeleted);
}
var attribute = vertexType.GetAttributeDefinition(aToBeDeleted);
myDeleteRequest.AddDeletedAttribute(attribute.ID);
switch (attribute.Kind)
{
case AttributeType.Property:
toBeDeletedProperties.Add(attribute.ID, (IPropertyDefinition)attribute);
break;
case AttributeType.OutgoingEdge:
toBeDeletedEdges.Add(attribute.ID, (IOutgoingEdgeDefinition)attribute);
break;
case AttributeType.BinaryProperty:
toBeDeletedBinaries.Add(attribute.ID, (IBinaryPropertyDefinition)attribute);
break;
}
}
#endregion
foreach (var aVertex in aVertexTypeGroup.ToList())
{
#region fetch to be deleted attributes
#region properties
foreach (var aToBeDeletedProperty in toBeDeletedProperties)
{
foreach (var aIndexDefinition in aToBeDeletedProperty.Value.InIndices)
{
RemoveFromIndices(aVertex,
_indexManager.GetIndices(vertexType, aIndexDefinition.IndexedProperties, mySecurityToken, myTransactionToken));
}
toBeDeletedStructuredPropertiesUpdate.Add(aToBeDeletedProperty.Key);
}
#endregion
#region edges
foreach (var aToBeDeltedEdge in toBeDeletedEdges)
{
if (aVertex.HasOutgoingEdge(aToBeDeltedEdge.Key))
{
switch (aToBeDeltedEdge.Value.Multiplicity)
{
case EdgeMultiplicity.SingleEdge:
toBeDeletedSingleEdges.Add(aToBeDeltedEdge.Key);
break;
case EdgeMultiplicity.MultiEdge:
case EdgeMultiplicity.HyperEdge:
toBeDeletedHyperEdges.Add(aToBeDeltedEdge.Key);
break;
}
}
}
#endregion
#region binaries
foreach (var aBinaryProperty in toBeDeletedBinaryProperties)
{
//TODO: Add HasBinaryProperty to IVertex
if (aVertex.GetAllBinaryProperties((_, __) => _ == aBinaryProperty).Count() > 0)
{
toBeDeletedBinaryProperties.Add(aBinaryProperty);
}
}
#endregion
#region undefined data
foreach (var aUnstructuredProperty in toBeDeletedUndefinedAttributes)
{
if (aVertex.HasUnstructuredProperty(aUnstructuredProperty))
{
tobeDeletedUnstructuredProperties.Add(aUnstructuredProperty);
}
}
#endregion
#endregion
_vertexStore.UpdateVertex(mySecurityToken, myTransactionToken, aVertex.VertexID, aVertex.VertexTypeID, update, true, aVertex.EditionName, aVertex.VertexRevisionID, false);
}
}
}
else
{
//remove the nodes
foreach (var aVertexTypeGroup in toBeProcessedVertices.GroupBy(_ => _.VertexTypeID))
{
var vertexType = _vertexTypeManager.ExecuteManager.GetType(aVertexTypeGroup.Key, myTransactionToken, mySecurityToken);
foreach (var aVertex in aVertexTypeGroup.ToList())
{
myDeleteRequest.AddDeletedVertex(aVertex.VertexID);
RemoveVertex(aVertex, vertexType, mySecurityToken, myTransactionToken);
}
}
}
}
public void Delete(RequestDelete myDeleteRequest, SecurityToken mySecurityToken, TransactionToken myTransactionToken)
{
GetVertices(myDeleteRequest.ToBeDeletedVertices, myTransactionToken, mySecurityToken);
}
/// <summary> /// Deletes a set of vertices /// </summary> /// <param name="myDeleteRequest">The request that represents the delete operation</param> /// <param name="mySecurityToken">The current security token</param> /// <param name="myTransactionToken">The current transaction token</param> public abstract void Delete(RequestDelete myDeleteRequest, SecurityToken mySecurityToken, Int64 myTransactionToken);
public static RequestDelete MakeRequestDelete(ServiceVertexType myVertexType, IEnumerable<Int64> myVertexIDs = null, ServiceDeletePayload myDeletePayload = null)
{
RequestGetVertices PreRequest = null;
if (myVertexIDs != null)
{
PreRequest = new RequestGetVertices(myVertexType.Name, myVertexIDs);
}
else
{
PreRequest = new RequestGetVertices(myVertexType.Name);
}
RequestDelete Request = new RequestDelete(PreRequest);
if (myDeletePayload != null)
{
foreach (var toDel in myDeletePayload.ToBeDeletedAttributes)
{
Request.AddAttribute(toDel);
}
}
return Request;
}
internal ServiceDeletePayload(RequestDelete myRequestDelete)
{
this.ToBeDeletedAttributes = (myRequestDelete.ToBeDeletedAttributes == null)
? null : myRequestDelete.ToBeDeletedAttributes.ToList();
}
public TResult Delete <TResult>(sones.Library.Commons.Security.SecurityToken mySecurityToken, long myTransactionID, sones.GraphDB.Request.RequestDelete myRequestDelete, sones.GraphDB.Request.Converter.DeleteResultConverter <TResult> myOutputconverter)
{
Stopwatch RunningTime = Stopwatch.StartNew();
var result = _GraphDSService.Delete(mySecurityToken, myTransactionID,
new ServiceVertexType(myRequestDelete.ToBeDeletedVertices.VertexTypeName),
myRequestDelete.ToBeDeletedVertices.VertexIDs.ToList(),
new ServiceDeletePayload(myRequestDelete));
RunningTime.Stop();
return(myOutputconverter(new RequestStatistics(new TimeSpan(RunningTime.ElapsedTicks)), result.Item1.Select(x => (IComparable)x), result.Item2.Select(x => (IComparable)x)));
}
