public static Dictionary<IEdge, SetValueType> Edges(IGraph graph, EdgeType edgeType, IActionExecutionEnvironment actionEnv, int threadId)
{
Dictionary<IEdge, SetValueType> edgesSet = new Dictionary<IEdge, SetValueType>();
foreach(IEdge edge in graph.GetCompatibleEdges(edgeType))
{
++actionEnv.PerformanceInfo.SearchStepsPerThread[threadId];
edgesSet[edge] = null;
}
return edgesSet;
}
public static Dictionary<INode, SetValueType> Nodes(IGraph graph, NodeType nodeType, IActionExecutionEnvironment actionEnv, int threadId)
{
Dictionary<INode, SetValueType> nodesSet = new Dictionary<INode, SetValueType>();
foreach(INode node in graph.GetCompatibleNodes(nodeType))
{
++actionEnv.PerformanceInfo.SearchStepsPerThread[threadId];
nodesSet[node] = null;
}
return nodesSet;
}
public static int CountEdges(IGraph graph, EdgeType edgeType, IActionExecutionEnvironment actionEnv, int threadId)
{
return graph.GetNumCompatibleEdges(edgeType);
}
public static Dictionary<IEdge, SetValueType> ReachableEdgesOutgoing(IGraph graph, INode startNode, EdgeType outgoingEdgeType, NodeType targetNodeType, IActionExecutionEnvironment actionEnv, int threadId)
{
Dictionary<IEdge, SetValueType> outgoingEdgesSet = new Dictionary<IEdge, SetValueType>();
ReachableEdgesOutgoing(startNode, outgoingEdgeType, targetNodeType, outgoingEdgesSet, graph, actionEnv, threadId);
foreach(KeyValuePair<IEdge, SetValueType> kvp in outgoingEdgesSet)
{
IEdge edge = kvp.Key;
graph.SetInternallyVisited(edge.Source, false, threadId);
graph.SetInternallyVisited(edge.Target, false, threadId);
}
return outgoingEdgesSet;
}
public static Dictionary<INode, SetValueType> ReachableIncoming(INode startNode, EdgeType incomingEdgeType, NodeType sourceNodeType, IActionExecutionEnvironment actionEnv, int threadId)
{
Dictionary<INode, SetValueType> sourceNodesSet = new Dictionary<INode, SetValueType>();
ReachableIncoming(startNode, incomingEdgeType, sourceNodeType, sourceNodesSet, actionEnv, threadId);
return sourceNodesSet;
}
/// <summary>
/// Fills set of nodes reachable from the start node via incoming edges, under the type constraints given, in a depth-first walk
/// </summary>
private static void ReachableIncoming(INode startNode, EdgeType incomingEdgeType, NodeType sourceNodeType, Dictionary<INode, SetValueType> sourceNodesSet, IActionExecutionEnvironment actionEnv, int threadId)
{
foreach(IEdge edge in startNode.Incoming)
{
++actionEnv.PerformanceInfo.SearchStepsPerThread[threadId];
if(!edge.InstanceOf(incomingEdgeType))
continue;
INode adjacentNode = edge.Source;
if(!adjacentNode.InstanceOf(sourceNodeType))
continue;
if(sourceNodesSet.ContainsKey(adjacentNode))
continue;
sourceNodesSet[adjacentNode] = null;
ReachableIncoming(adjacentNode, incomingEdgeType, sourceNodeType, sourceNodesSet, actionEnv, threadId);
}
}
public static Dictionary<IEdge, SetValueType> Incoming(INode startNode, EdgeType incomingEdgeType, NodeType sourceNodeType, IActionExecutionEnvironment actionEnv, int threadId)
{
Dictionary<IEdge, SetValueType> incomingEdgesSet = new Dictionary<IEdge, SetValueType>();
foreach(IEdge edge in startNode.Incoming)
{
++actionEnv.PerformanceInfo.SearchStepsPerThread[threadId];
if(!edge.InstanceOf(incomingEdgeType))
continue;
INode adjacentNode = edge.Source;
if(!adjacentNode.InstanceOf(sourceNodeType))
continue;
incomingEdgesSet[edge] = null;
}
return incomingEdgesSet;
}
public object ApplyFunctionMethod(IActionExecutionEnvironment actionEnv, IGraph graph, string name, object[] arguments)
{
throw new NotImplementedException("The method or operation is not implemented.");
}
public static bool IsBoundedReachableOutgoing(IGraph graph, INode startNode, INode endNode, int depth, EdgeType outgoingEdgeType, NodeType targetNodeType, IActionExecutionEnvironment actionEnv, int threadId)
{
Dictionary<INode, int> targetNodesToMinDepth = new Dictionary<INode, int>();
bool result = IsBoundedReachableOutgoing(startNode, endNode, depth, outgoingEdgeType, targetNodeType, graph, targetNodesToMinDepth, actionEnv, threadId);
return result;
}
public StatisticsSource(IGraph graph, IActionExecutionEnvironment actionEnv)
{
this.graph = graph;
this.actionEnv = actionEnv;
}
private static bool IsReachableEdgesIncoming(INode startNode, IEdge endEdge, EdgeType incomingEdgeType, NodeType sourceNodeType, IGraph graph, List<IGraphElement> visitedElems, IActionExecutionEnvironment actionEnv, int threadId)
{
bool result = false;
foreach(IEdge edge in startNode.Incoming)
{
++actionEnv.PerformanceInfo.SearchStepsPerThread[threadId];
if(!edge.InstanceOf(incomingEdgeType))
continue;
INode adjacentNode = edge.Source;
if(!adjacentNode.InstanceOf(sourceNodeType))
continue;
if(graph.IsInternallyVisited(edge, threadId))
continue;
graph.SetInternallyVisited(edge, true, threadId);
visitedElems.Add(edge);
if(edge.Source == endEdge)
return true;
if(graph.IsInternallyVisited(adjacentNode, threadId))
continue;
graph.SetInternallyVisited(adjacentNode, true, threadId);
visitedElems.Add(adjacentNode);
result = IsReachableEdgesIncoming(adjacentNode, endEdge, incomingEdgeType, sourceNodeType, graph, visitedElems, actionEnv, threadId);
if(result == true)
break;
}
return result;
}
public static bool IsBoundedReachable(IGraph graph, INode startNode, INode endNode, int depth, EdgeType incidentEdgeType, NodeType adjacentNodeType, IActionExecutionEnvironment actionEnv, int threadId)
{
Dictionary<INode, int> adjacentNodesToMinDepth = new Dictionary<INode, int>();
bool result = IsBoundedReachable(startNode, endNode, depth, incidentEdgeType, adjacentNodeType, graph, adjacentNodesToMinDepth, actionEnv, threadId);
return result;
}
public static bool IsReachableEdgesIncoming(IGraph graph, INode startNode, IEdge endEdge, EdgeType incomingEdgeType, NodeType sourceNodeType, IActionExecutionEnvironment actionEnv, int threadId)
{
List<IGraphElement> visitedElems = new List<IGraphElement>((int)Math.Sqrt(graph.NumNodes));
bool result = IsReachableEdgesIncoming(startNode, endEdge, incomingEdgeType, sourceNodeType, graph, visitedElems, actionEnv, threadId);
for(int i = 0; i < visitedElems.Count; ++i)
graph.SetInternallyVisited(visitedElems[i], false, threadId);
return result;
}
public static bool IsIncoming(INode startNode, IEdge endEdge, EdgeType incomingEdgeType, NodeType sourceNodeType, IActionExecutionEnvironment actionEnv, int threadId)
{
foreach(IEdge edge in startNode.Incoming)
{
++actionEnv.PerformanceInfo.SearchStepsPerThread[threadId];
if(!edge.InstanceOf(incomingEdgeType))
continue;
INode adjacentNode = edge.Source;
if(!adjacentNode.InstanceOf(sourceNodeType))
continue;
if(edge == endEdge)
return true;
}
return false;
}
public static bool IsAdjacentOutgoing(INode startNode, INode endNode, EdgeType outgoingEdgeType, NodeType targetNodeType, IActionExecutionEnvironment actionEnv, int threadId)
{
foreach(IEdge edge in startNode.Outgoing)
{
++actionEnv.PerformanceInfo.SearchStepsPerThread[threadId];
if(!edge.InstanceOf(outgoingEdgeType))
continue;
INode adjacentNode = edge.Target;
if(!adjacentNode.InstanceOf(targetNodeType))
continue;
if(adjacentNode == endNode)
return true;
}
return false;
}
/// <summary> /// Executes the procedure method given by its name. /// Throws an exception if the method does not exists or the parameters are of wrong types. /// </summary> /// <param name="actionEnv">The current action execution environment.</param> /// <param name="graph">The current graph.</param> /// <param name="name">The name of the procedure method to apply.</param> /// <param name="arguments">An array with the arguments to the method.</param> /// <returns>An array with the return values of procedure application. Only valid until the next call of this method.</returns> public abstract object[] ApplyProcedureMethod(IActionExecutionEnvironment actionEnv, IGraph graph, string name, object[] arguments);
public static bool IsBoundedReachableEdgesIncoming(IGraph graph, INode startNode, IEdge endEdge, int depth, EdgeType incomingEdgeType, NodeType sourceNodeType, IActionExecutionEnvironment actionEnv, int threadId)
{
Dictionary<INode, int> sourceNodesToMinDepth = new Dictionary<INode, int>();
bool result = IsBoundedReachableEdgesIncoming(startNode, endEdge, depth, incomingEdgeType, sourceNodeType, graph, sourceNodesToMinDepth, actionEnv, threadId);
return result;
}
/// <summary> /// Applies this procedure with the given action environment on the given graph. /// Takes the arguments as inputs. /// Returns an array of output values. /// Attention: at the next call of Apply, the array returned from previous call is overwritten with the new return values. /// </summary> public abstract object[] Apply(IActionExecutionEnvironment actionEnv, IGraph graph, object[] argument);
public static int CountIncoming(INode startNode, EdgeType incidentEdgeType, NodeType adjacentNodeType, IActionExecutionEnvironment actionEnv, int threadId)
{
int count = 0;
foreach(IEdge edge in startNode.Incoming)
{
++actionEnv.PerformanceInfo.SearchStepsPerThread[threadId];
if(!edge.InstanceOf(incidentEdgeType))
continue;
INode adjacentNode = edge.Source;
if(!adjacentNode.InstanceOf(adjacentNodeType))
continue;
++count;
}
return count;
}
public static Dictionary<IEdge, SetValueType> Outgoing(INode startNode, EdgeType outgoingEdgeType, NodeType targetNodeType, IActionExecutionEnvironment actionEnv, int threadId)
{
Dictionary<IEdge, SetValueType> outgoingEdgesSet = new Dictionary<IEdge, SetValueType>();
foreach(IEdge edge in startNode.Outgoing)
{
++actionEnv.PerformanceInfo.SearchStepsPerThread[threadId];
if(!edge.InstanceOf(outgoingEdgeType))
continue;
INode adjacentNode = edge.Target;
if(!adjacentNode.InstanceOf(targetNodeType))
continue;
outgoingEdgesSet[edge] = null;
}
return outgoingEdgesSet;
}
public static Dictionary<INode, SetValueType> ReachableOutgoing(INode startNode, EdgeType outgoingEdgeType, NodeType targetNodeType, IActionExecutionEnvironment actionEnv, int threadId)
{
Dictionary<INode, SetValueType> targetNodesSet = new Dictionary<INode, SetValueType>();
ReachableOutgoing(startNode, outgoingEdgeType, targetNodeType, targetNodesSet, actionEnv, threadId);
return targetNodesSet;
}
/// <summary>
/// Returns whether the end edge is reachable from the start node within the given depth, via incoming edges, under the type constraints given
/// </summary>
private static bool IsBoundedReachableEdgesIncoming(INode startNode, IEdge endEdge, int depth, EdgeType incomingEdgeType, NodeType sourceNodeType, IGraph graph, Dictionary<INode, int> adjacentNodesToMinDepth, IActionExecutionEnvironment actionEnv, int threadId)
{
if(depth <= 0)
return false;
bool result = false;
foreach(IEdge edge in startNode.Incoming)
{
++actionEnv.PerformanceInfo.SearchSteps;
if(!edge.InstanceOf(incomingEdgeType))
continue;
INode adjacentNode = edge.Source;
if(!adjacentNode.InstanceOf(sourceNodeType))
continue;
if(edge == endEdge)
return true;
int nodeDepth;
if(adjacentNodesToMinDepth.TryGetValue(adjacentNode, out nodeDepth) && nodeDepth >= depth - 1)
continue;
adjacentNodesToMinDepth[adjacentNode] = depth - 1;
result = IsBoundedReachableEdgesIncoming(adjacentNode, endEdge, depth - 1, incomingEdgeType, sourceNodeType, graph, adjacentNodesToMinDepth, actionEnv, threadId);
if(result == true)
break;
}
return result;
}
/// <summary> /// Filters the matches of a multi rule all call or multi rule backtracking construct /// (i.e. matches obtained from different rules, that implement a match class). /// </summary> /// <param name="actionEnv">The action execution environment, required by the filter implementation.</param> /// <param name="matches">The combined list of all matches of all rules (implementing the same match class; to inspect and filter)</param> /// <param name="filter">The filter to apply</param> public abstract void Filter(IActionExecutionEnvironment actionEnv, IList <IMatch> matches, FilterCallWithArguments filter);
public static Dictionary<INode, SetValueType> Reachable(INode startNode, EdgeType incidentEdgeType, NodeType adjacentNodeType, IActionExecutionEnvironment actionEnv, int threadId)
{
Dictionary<INode, SetValueType> adjacentNodesSet = new Dictionary<INode, SetValueType>();
Reachable(startNode, incidentEdgeType, adjacentNodeType, adjacentNodesSet, actionEnv, threadId);
return adjacentNodesSet;
}
public static IEnumerable<IEdge> ReachableEdgesOutgoing(INode startNode, EdgeType incidentEdgeType, NodeType adjacentNodeType, IGraph graph, IActionExecutionEnvironment actionEnv, int threadId)
{
Dictionary<INode, SetValueType> visitedNodes = new Dictionary<INode, SetValueType>((int)Math.Sqrt(graph.NumNodes));
visitedNodes.Add(startNode, null);
foreach(IEdge edge in ReachableEdgesOutgoingRec(startNode, incidentEdgeType, adjacentNodeType, graph, visitedNodes, actionEnv, threadId))
yield return edge;
}
/// <summary>
/// Fills set of nodes reachable from the start node via outgoing edges, under the type constraints given, in a depth-first walk
/// </summary>
private static void ReachableOutgoing(INode startNode, EdgeType outgoingEdgeType, NodeType targetNodeType, IDictionary<INode, SetValueType> targetNodesSet, IActionExecutionEnvironment actionEnv, int threadId)
{
foreach(IEdge edge in startNode.Outgoing)
{
++actionEnv.PerformanceInfo.SearchStepsPerThread[threadId];
if(!edge.InstanceOf(outgoingEdgeType))
continue;
INode adjacentNode = edge.Target;
if(!adjacentNode.InstanceOf(targetNodeType))
continue;
if(targetNodesSet.ContainsKey(adjacentNode))
continue;
targetNodesSet[adjacentNode] = null;
ReachableOutgoing(adjacentNode, outgoingEdgeType, targetNodeType, targetNodesSet, actionEnv, threadId);
}
}
private static IEnumerable<IEdge> ReachableEdgesOutgoingRec(INode startNode, EdgeType incidentEdgeType, NodeType adjacentNodeType, IGraph graph, Dictionary<INode, SetValueType> visitedNodes, IActionExecutionEnvironment actionEnv, int threadId)
{
foreach(IEdge edge in startNode.GetCompatibleOutgoing(incidentEdgeType))
{
++actionEnv.PerformanceInfo.SearchStepsPerThread[threadId];
INode adjacentNode = edge.Target;
if(!adjacentNode.InstanceOf(adjacentNodeType))
continue;
yield return edge;
if(visitedNodes.ContainsKey(adjacentNode))
continue;
visitedNodes.Add(adjacentNode, null);
foreach(IEdge reachableEdge in ReachableEdgesOutgoingRec(adjacentNode, incidentEdgeType, adjacentNodeType, graph, visitedNodes, actionEnv, threadId))
yield return reachableEdge;
}
}
public static int CountNodes(IGraph graph, NodeType nodeType, IActionExecutionEnvironment actionEnv, int threadId)
{
return graph.GetNumCompatibleNodes(nodeType);
}
private static IEnumerable<INode> BoundedReachableIncomingRec(INode startNode, int depth, EdgeType incidentEdgeType, NodeType adjacentNodeType, IGraph graph, Dictionary<INode, int> sourceNodesToMinDepth, IActionExecutionEnvironment actionEnv, int threadId)
{
if(depth <= 0)
yield break;
foreach(IEdge edge in startNode.GetCompatibleIncoming(incidentEdgeType))
{
++actionEnv.PerformanceInfo.SearchStepsPerThread[threadId];
INode adjacentNode = edge.Source;
if(!adjacentNode.InstanceOf(adjacentNodeType))
continue;
int nodeDepth;
if(!sourceNodesToMinDepth.TryGetValue(adjacentNode, out nodeDepth))
yield return adjacentNode;
if(sourceNodesToMinDepth.TryGetValue(adjacentNode, out nodeDepth) && nodeDepth >= depth - 1)
continue;
sourceNodesToMinDepth[adjacentNode] = depth - 1;
foreach(INode node in BoundedReachableIncomingRec(adjacentNode, depth - 1, incidentEdgeType, adjacentNodeType, graph, sourceNodesToMinDepth, actionEnv, threadId))
yield return node;
}
}
public static int CountReachableIncoming(INode startNode, EdgeType incomingEdgeType, NodeType sourceNodeType, IActionExecutionEnvironment actionEnv, int threadId)
{
// todo: more performant implementation with internally visited used for marking and list for unmarking instead of hash set
Dictionary<INode, SetValueType> sourceNodesSet = new Dictionary<INode, SetValueType>();
ReachableIncoming(startNode, incomingEdgeType, sourceNodeType, sourceNodesSet, actionEnv, threadId);
return sourceNodesSet.Count;
}
public static IEnumerable<INode> BoundedReachableOutgoing(INode startNode, int depth, EdgeType incidentEdgeType, NodeType adjacentNodeType, IGraph graph, IActionExecutionEnvironment actionEnv, int threadId)
{
Dictionary<INode, int> targetNodesToMinDepth = new Dictionary<INode, int>();
foreach(INode node in BoundedReachableOutgoingRec(startNode, depth, incidentEdgeType, adjacentNodeType, graph, targetNodesToMinDepth, actionEnv, threadId))
yield return node;
}
private static void ReachableEdges(INode startNode, EdgeType incidentEdgeType, NodeType adjacentNodeType, Dictionary<IEdge, SetValueType> incidentEdgesSet, IGraph graph, IActionExecutionEnvironment actionEnv, int threadId)
{
foreach(IEdge edge in startNode.Outgoing)
{
++actionEnv.PerformanceInfo.SearchStepsPerThread[threadId];
if(!edge.InstanceOf(incidentEdgeType))
continue;
INode adjacentNode = edge.Target;
if(!adjacentNode.InstanceOf(adjacentNodeType))
continue;
incidentEdgesSet[edge] = null;
if(graph.IsInternallyVisited(adjacentNode, threadId))
continue;
graph.SetInternallyVisited(adjacentNode, true, threadId);
ReachableEdges(adjacentNode, incidentEdgeType, adjacentNodeType, incidentEdgesSet, graph, actionEnv, threadId);
}
foreach(IEdge edge in startNode.Incoming)
{
++actionEnv.PerformanceInfo.SearchStepsPerThread[threadId];
if(!edge.InstanceOf(incidentEdgeType))
continue;
INode adjacentNode = edge.Source;
if(!adjacentNode.InstanceOf(adjacentNodeType))
continue;
incidentEdgesSet[edge] = null;
if(graph.IsInternallyVisited(adjacentNode, threadId))
continue;
graph.SetInternallyVisited(adjacentNode, true, threadId);
ReachableEdges(adjacentNode, incidentEdgeType, adjacentNodeType, incidentEdgesSet, graph, actionEnv, threadId);
}
}
public static IEnumerable<IEdge> BoundedReachableEdgesOutgoing(INode startNode, int depth, EdgeType incidentEdgeType, NodeType adjacentNodeType, IGraph graph, IActionExecutionEnvironment actionEnv, int threadId)
{
Dictionary<IEdge, SetValueType> visitedEdges = new Dictionary<IEdge, SetValueType>();
Dictionary<INode, int> targetNodesToMinDepth = new Dictionary<INode, int>();
foreach(IEdge edge in BoundedReachableEdgesOutgoingRec(startNode, depth, incidentEdgeType, adjacentNodeType, graph, visitedEdges, targetNodesToMinDepth, actionEnv, threadId))
yield return edge;
}
/// <summary> /// Executes the function method given by its name. /// Throws an exception if the method does not exists or the parameters are of wrong types. /// </summary> /// <param name="actionEnv">The current action execution environment.</param> /// <param name="graph">The current graph.</param> /// <param name="name">The name of the function method to apply.</param> /// <param name="arguments">An array with the arguments to the method.</param> /// <returns>The return value of function application.</returns> public abstract object ApplyFunctionMethod(IActionExecutionEnvironment actionEnv, IGraph graph, string name, object[] arguments);
private static IEnumerable<IEdge> BoundedReachableEdgesOutgoingRec(INode startNode, int depth, EdgeType incidentEdgeType, NodeType adjacentNodeType, IGraph graph, Dictionary<IEdge, SetValueType> visitedEdges, Dictionary<INode, int> targetNodesToMinDepth, IActionExecutionEnvironment actionEnv, int threadId)
{
if(depth <= 0)
yield break;
foreach(IEdge edge in startNode.GetCompatibleOutgoing(incidentEdgeType))
{
++actionEnv.PerformanceInfo.SearchStepsPerThread[threadId];
INode adjacentNode = edge.Target;
if(!adjacentNode.InstanceOf(adjacentNodeType))
continue;
if(!visitedEdges.ContainsKey(edge))
{
visitedEdges[edge] = null;
yield return edge;
}
int nodeDepth;
if(targetNodesToMinDepth.TryGetValue(adjacentNode, out nodeDepth) && nodeDepth >= depth - 1)
continue;
targetNodesToMinDepth[adjacentNode] = depth - 1;
foreach(IEdge reachableEdge in BoundedReachableEdgesOutgoingRec(adjacentNode, depth - 1, incidentEdgeType, adjacentNodeType, graph, visitedEdges, targetNodesToMinDepth, actionEnv, threadId))
yield return reachableEdge;
}
}
public override object[] ApplyProcedureMethod(IActionExecutionEnvironment actionEnv, IGraph graph, string name, object[] arguments)
{
throw new Exception("The method or operation is not implemented.");
}
public static int CountAdjacentIncoming(IGraph graph, INode startNode, EdgeType incidentEdgeType, NodeType adjacentNodeType, IActionExecutionEnvironment actionEnv, int threadId)
{
int count = 0;
foreach(IEdge edge in startNode.Incoming)
{
++actionEnv.PerformanceInfo.SearchStepsPerThread[threadId];
if(!edge.InstanceOf(incidentEdgeType))
continue;
INode adjacentNode = edge.Source;
if(!adjacentNode.InstanceOf(adjacentNodeType))
continue;
if(graph.IsInternallyVisited(adjacentNode, threadId))
continue;
graph.SetInternallyVisited(adjacentNode, true, threadId);
++count;
}
foreach(IEdge edge in startNode.GetCompatibleIncoming(incidentEdgeType))
{
INode adjacentNode = edge.Source;
if(!adjacentNode.InstanceOf(adjacentNodeType))
continue;
graph.SetInternallyVisited(adjacentNode, false, threadId);
}
return count;
}
/// <summary> /// Applies this procedure with the given action environment on the given graph. /// Takes the parameters from paramBindings as inputs. /// Returns an array of output values. /// Attention: at the next call of Apply, the array returned from previous call is overwritten with the new return values. /// </summary> public abstract object[] Apply(IActionExecutionEnvironment actionEnv, IGraph graph, ProcedureInvocationParameterBindings paramBindings);
/// <summary> /// Applies this function with the given action environment on the given graph. /// Takes the parameters from paramBindings as inputs. /// Returns the one output value. /// </summary> public abstract object Apply(IActionExecutionEnvironment actionEnv, IGraph graph, FunctionInvocationParameterBindings paramBindings);