/// <summary>
/// Creates a scale free network
/// </summary>
/// <param name="nodeCound"></param>
/// <param name="edgeCount"></param>
/// <param name="fallen8"></param>
public void CreateScaleFreeNetwork(int nodeCound, int edgeCount)
{
var creationDate = DateHelper.ConvertDateTime(DateTime.Now);
var vertexIDs = new List <Int32> ();
var prng = new Random();
if (nodeCound < _numberOfToBeTestedVertices)
{
_numberOfToBeTestedVertices = nodeCound;
}
_toBeBenchenVertices = new List <VertexModel> (_numberOfToBeTestedVertices);
for (var i = 0; i < nodeCound; i++)
{
// vertexIDs.Add(
// fallen8.CreateVertex(creationDate, new PropertyContainer[4]
// {
// new PropertyContainer { PropertyId = 23, Value = 4344 },
// new PropertyContainer { PropertyId = 24, Value = "Ein gaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaanz langes Property" },
// new PropertyContainer { PropertyId = 25, Value = "Ein kurzes Property" },
// new PropertyContainer { PropertyId = 26, Value = "Ein gaaaaaaaanz langes Property" },
// }).Id);
vertexIDs.Add(_f8.CreateVertex(creationDate).Id);
}
if (edgeCount != 0)
{
foreach (var aVertexId in vertexIDs)
{
var targetVertices = new HashSet <Int32> ();
do
{
targetVertices.Add(vertexIDs [prng.Next(0, vertexIDs.Count)]);
} while (targetVertices.Count < edgeCount);
foreach (var aTargetVertex in targetVertices)
{
// fallen8.CreateEdge(aVertexId, 0, aTargetVertex, creationDate, new PropertyContainer[2]
// {
// new PropertyContainer { PropertyId = 29, Value = 23.4 },
// new PropertyContainer { PropertyId = 1, Value = 2 },
// });
//
_f8.CreateEdge(aVertexId, 0, aTargetVertex, creationDate);
}
}
_toBeBenchenVertices.AddRange(PickInterestingIDs(vertexIDs, prng)
.Select(aId => {
VertexModel v = null;
_f8.TryGetVertex(out v, aId);
return(v);
}));
}
}
public int AddVertex(VertexSpecification definition)
{
#region initial checks
if (definition == null)
{
throw new ArgumentNullException("definition");
}
#endregion
return(_fallen8.CreateVertex(definition.CreationDate, ServiceHelper.GenerateProperties(definition.Properties)).Id);
}
public void CreateGraph(int nodeCount, int edgeCount)
{
_f8.TabulaRasa();
var creationDate = DateHelper.ConvertDateTime(DateTime.Now);
var vertexIDs = new List <Int32> ();
var prng = new Random();
if (nodeCount < _numberOfToBeTestedVertices)
{
_numberOfToBeTestedVertices = nodeCount;
}
_toBeBenchenVertices = new List <VertexModel> (_numberOfToBeTestedVertices);
for (var i = 0; i < nodeCount; i++)
{
vertexIDs.Add(_f8.CreateVertex(creationDate).Id);
}
if (edgeCount != 0)
{
foreach (var aVertexId in vertexIDs)
{
var targetVertices = new HashSet <Int32> ();
do
{
targetVertices.Add(vertexIDs [prng.Next(0, vertexIDs.Count)]);
} while (targetVertices.Count < edgeCount);
foreach (var aTargetVertex in targetVertices)
{
_f8.CreateEdge(aVertexId, 0, aTargetVertex, creationDate);
}
}
_toBeBenchenVertices.AddRange(PickInterestingIDs(vertexIDs, prng)
.Select(aId => {
VertexModel v = null;
_f8.TryGetVertex(out v, aId);
return(v);
}));
}
}
/// <summary>
/// Creates a random graph
/// </summary>
/// <param name="vertexCount">The vertex count</param>
/// <param name="edgesPerVertex">The max number of edges per vertex</param>
/// <returns>The F8 graph</returns>
public static Fallen8 CreateRandomGraph(int vertexCount, int edgesPerVertex)
{
var result = new Fallen8();
var propertyCount = 5;
var vertexIDs = new List <int>();
var prng = new Random();
var availableProperties = GenerateProperties();
for (int i = 0; i < vertexCount; i++)
{
var creationDate = Convert.ToUInt32(prng.Next(0, Int32.MaxValue));
var properties = AssembleSomeProperties(availableProperties, prng, propertyCount);
vertexIDs.Add(result.CreateVertex(creationDate, properties).Id);
}
for (int i = 0; i < vertexIDs.Count; i++)
{
var sourceId = vertexIDs[i];
var countOfEdges = prng.Next(0, edgesPerVertex);
for (int j = 0; j < countOfEdges; j++)
{
var edgePropertyId = Convert.ToUInt16(prng.Next(UInt16.MinValue, UInt16.MaxValue));
var creationDate = Convert.ToUInt32(prng.Next(0, Int32.MaxValue));
var properties = AssembleSomeProperties(availableProperties, prng, propertyCount);
var targetId = vertexIDs[prng.Next(0, vertexIDs.Count)];
result.CreateEdge(sourceId, edgePropertyId, targetId, creationDate, properties);
}
}
return(result);
}
