public void SocialNetwork(IGraphDS myGraphDS)
{
var transactionID = myGraphDS.BeginTransaction(null);
#region ontology [API]
var entityTypeDefinition = new VertexTypePredefinition(_vtEntity)
.AddProperty(new PropertyPredefinition(_pName, typeof(String).Name));
var userTypeDefinition =
new VertexTypePredefinition(_vtUser)
.SetSuperTypeName(_vtEntity)
.AddOutgoingEdge(new OutgoingEdgePredefinition(_pHasVisited, _vtCity).SetMultiplicityAsMultiEdge());
var placeTypeDefinition =
new VertexTypePredefinition(_vtPlace)
.SetSuperTypeName(_vtEntity);
var countryTypeDefinition =
new VertexTypePredefinition(_vtCountry)
.SetSuperTypeName(_vtPlace)
.AddIncomingEdge(new IncomingEdgePredefinition(_pCities, _vtCity, _pInCountry));
var cityTypeDefinition =
new VertexTypePredefinition(_vtCity)
.SetSuperTypeName(_vtPlace)
.AddOutgoingEdge(new OutgoingEdgePredefinition(_pInCountry, _vtCountry));
Dictionary<String, IVertexType> vertexTypes = myGraphDS.CreateVertexTypes(null, transactionID,
new RequestCreateVertexTypes(new List<VertexTypePredefinition>
{ entityTypeDefinition,
userTypeDefinition,
placeTypeDefinition,
countryTypeDefinition,
cityTypeDefinition
}),
(stats, types) => types.ToDictionary(vType => vType.Name, vType => vType));
#endregion
#region country [GQL]
ExecuteQuery("insert into " + _vtCountry + " values ( " + _pName + " = 'UK' )", myGraphDS, transactionID);
#endregion
#region cities [GQL]
var cityVertexIDs = new List<long>();
foreach (var aCity in new List<String> { "London", "Manchester", "Edinburgh", "Cambridge", "Oxford" })
{
cityVertexIDs.Add(ExecuteQuery("insert into " + _vtCity + " values ( " + _pName + " = '" + aCity + "', " + _pInCountry + " = REF(" + _pName + " = 'UK'))", myGraphDS, transactionID).First().GetProperty<long>("VertexID"));
}
#endregion
#region user [API]
var userType = vertexTypes[_vtUser];
var cityType = vertexTypes[_vtCity];
Parallel.ForEach(
Partitioner.Create(0, _countOfUsers, _countOfUsers / Environment.ProcessorCount),
range =>
{
for (long i = range.Item1; i < range.Item2; i++)
{
CreateANewUser(userType, i, myGraphDS, cityVertexIDs, cityType, transactionID);
}
});
#endregion
myGraphDS.CommitTransaction(null, transactionID);
}
