/// <summary>
/// Deserializes contraction data from the given stream.
/// </summary>
public static ContractedDb Deserialize(Stream stream, ContractedDbProfile profile)
{
// read version # first:
// 1: means regular non-edge contracted data.
// 2: means regular edge contracted data.
var version = stream.ReadByte();
if (version == 1)
{
return(new ContractedDb(DirectedMetaGraph.Deserialize(stream, profile == null ? null : profile.NodeBasedProfile), false));
}
else if (version == 2)
{
return(new ContractedDb(DirectedDynamicGraph.Deserialize(stream, profile == null ? null : profile.EdgeBasedProfile)));
}
else if (version == 3)
{
return(new ContractedDb(DirectedMetaGraph.Deserialize(stream, profile == null ? null : profile.NodeBasedProfile), true));
}
else
{
throw new Exception(string.Format("Cannot deserialize contracted graph: Invalid version #: {0}.", version));
}
}
public void TestDeserialize()
{
var graph = new DirectedDynamicGraph(10, 1);
graph.AddEdge(0, 1, 1);
// serialize.
using (var stream = new System.IO.MemoryStream())
{
var size = graph.Serialize(stream);
stream.Seek(0, System.IO.SeekOrigin.Begin);
var deserializedGraph = DirectedDynamicGraph.Deserialize(stream, DirectedGraphProfile.Aggressive24);
Assert.AreEqual(size, stream.Position);
Assert.AreEqual(2, deserializedGraph.VertexCount);
Assert.AreEqual(1, deserializedGraph.EdgeCount);
// verify all edges.
var edges = deserializedGraph.GetEdgeEnumerator(0);
Assert.AreEqual(1, edges.Count());
Assert.AreEqual(1, edges.First().Data[0]);
Assert.AreEqual(1, edges.First().Neighbour);
edges = deserializedGraph.GetEdgeEnumerator(1);
Assert.IsFalse(edges.MoveNext());
}
graph = new DirectedDynamicGraph(10, 1);
graph.AddEdge(0, 1, 1);
graph.AddEdge(0, 2, 2);
graph.AddEdge(0, 3, 3);
graph.AddEdge(0, 4, 4);
graph.AddEdge(5, 1, 5);
graph.AddEdge(5, 2, 6);
graph.AddEdge(5, 3, 7);
graph.AddEdge(5, 4, 8);
// serialize.
using (var stream = new System.IO.MemoryStream())
{
var size = graph.Serialize(stream);
stream.Seek(0, System.IO.SeekOrigin.Begin);
var deserializedGraph = DirectedDynamicGraph.Deserialize(stream, DirectedGraphProfile.Aggressive24);
Assert.AreEqual(size, stream.Position);
Assert.AreEqual(6, deserializedGraph.VertexCount);
Assert.AreEqual(8, deserializedGraph.EdgeCount);
}
}