public freeGraphLinkBase GetClone()
{
freeGraphLinkBase link = new freeGraphLinkBase();
link.type = type;
link.weight = weight;
link.nodeNameA = nodeNameA;
link.nodeNameB = nodeNameB;
link.linkLabel = linkLabel;
return(link);
}
/// <summary>
/// Gets the link - order of nodeNameA and nodeNameB is irrelevant for the query
/// </summary>
/// <param name="nodeNameA">The node name a.</param>
/// <param name="nodeNameB">The node name b.</param>
/// <returns></returns>
public freeGraphLinkBase GetLink(String nodeNameA, String nodeNameB)
{
freeGraphLinkBase output = null;
String key = GetLinkKey(nodeNameA, nodeNameB);
if (linkDictionary.ContainsKey(key))
{
return(linkDictionary[key]);
}
return(output);
}
/// <summary>
/// Registers the link, returns true if this link is redundant
/// </summary>
/// <param name="link">The link.</param>
/// <param name="nodeDictionary">The node dictionary.</param>
/// <returns></returns>
public Boolean RegisterLink(freeGraphLinkBase link, Dictionary <String, freeGraphNodeBase> nodeDictionary)
{
Boolean isRedundant = false;
if (!linkedAtoBDictionary.ContainsKey(link.nodeNameA))
{
linkedAtoBDictionary.Add(link.nodeNameA, new List <freeGraphNodeBase>());
linkAtoBDictionary.Add(link.nodeNameA, new List <freeGraphLinkBase>());
}
if (!linkedBtoADictionary.ContainsKey(link.nodeNameB))
{
linkedBtoADictionary.Add(link.nodeNameB, new List <freeGraphNodeBase>());
linkBtoADictionary.Add(link.nodeNameB, new List <freeGraphLinkBase>());
}
//if (nodeDictionary.ContainsKey(link.nodeNameA) && nodeDictionary.ContainsKey(link.nodeNameB))
//{
//if (linkedAtoBDictionary.ContainsKey(link.nodeNameA))
//{
if (linkedAtoBDictionary[link.nodeNameA].Contains(nodeDictionary[link.nodeNameB]))
{
isRedundant = true;
}
//}
//if (linkedBtoADictionary.ContainsKey(link.nodeNameB))
//{
if (linkedBtoADictionary[link.nodeNameB].Contains(nodeDictionary[link.nodeNameA]))
{
isRedundant = true;
}
//}
//}
if (isRedundant)
{
}
else
{
linkedAtoBDictionary[link.nodeNameA].Add(nodeDictionary[link.nodeNameB]);
linkedBtoADictionary[link.nodeNameB].Add(nodeDictionary[link.nodeNameA]);
linkAtoBDictionary[link.nodeNameA].Add(link);
linkBtoADictionary[link.nodeNameB].Add(link);
String k = GetLinkKey(link.nodeNameA, link.nodeNameB);
if (!linkDictionary.ContainsKey(k))
{
linkDictionary.Add(k, link);
}
}
return(isRedundant);
}
/// <summary>
/// Adds link if not found, returns existing if found. Weight and type are not set to existing link
/// </summary>
/// <param name="nodeNameA">The node name a.</param>
/// <param name="nodeNameB">The node name b.</param>
/// <param name="weight">The weight.</param>
/// <param name="type">The type.</param>
/// <returns></returns>
public freeGraphLinkBase AddLink(String nodeNameA, String nodeNameB, Double weight = 1, Int32 type = 0)
{
if (!ContainsLink(nodeNameA, nodeNameB, false))
{
freeGraphLinkBase link = new freeGraphLinkBase();
link.nodeNameA = nodeNameA;
link.nodeNameB = nodeNameB;
link.weight = weight;
link.type = type;
links.Add(link);
linkRegistry.RegisterLink(link, nodeDictionary);
return(link);
}
return(GetLink(nodeNameA, nodeNameB, false));
}
/// <summary>
/// Gets link in one or the other direction, otherwise returns null;
/// </summary>
/// <param name="nodeNameA">The node name a.</param>
/// <param name="nodeNameB">The node name b.</param>
/// <param name="includeBtoALinks">if set to <c>true</c> [include bto a links].</param>
/// <returns></returns>
public freeGraphLinkBase GetLink(String nodeNameA, String nodeNameB, Boolean includeBtoALinks = false)
{
freeGraphLinkBase output = null;
if (IsReady)
{
output = linkRegistry.GetLink(nodeNameA, nodeNameB);
}
else
{
output = links.FirstOrDefault(x => (x.nodeNameA == nodeNameA) && (x.nodeNameB == nodeNameB));
if ((output == null) && includeBtoALinks)
{
output = links.FirstOrDefault(x => (x.nodeNameB == nodeNameA) && (x.nodeNameA == nodeNameB));
}
}
return(output);
}
/// <summary>
/// Returns link instance, detached from the <see cref="freeGraph"/> model
/// </summary>
/// <param name="link">The link.</param>
/// <param name="skipCheck">if set to <c>true</c> [skip check].</param>
/// <returns></returns>
public freeGraphLink GetLinkInstance(freeGraphLinkBase link, Boolean skipCheck = true)
{
freeGraphLink output = new freeGraphLink(link.GetClone());
output.nodeA = GetNode(link.nodeNameA, skipCheck);
if (output.nodeA != null)
{
output.nodeA = output.nodeA.GetQueryResultClone(0);
}
output.nodeB = GetNode(link.nodeNameB, skipCheck);
if (output.nodeB != null)
{
output.nodeB = output.nodeB.GetQueryResultClone(0);
}
return(output);
}
/// <summary>
/// Adds new link into graph or sums weight of the specified and existing - and applies type that is greater
/// </summary>
/// <param name="link">The link.</param>
public void AddLinkOrSum(freeGraphLinkBase link)
{
if (!ContainsLink(link.nodeNameA, link.nodeNameB, true))
{
AddLink(link.nodeNameA, link.nodeNameB, link.weight, link.type);
}
else
{
var exLink = GetLink(link.nodeNameA, link.nodeNameB);
if (exLink != null)
{
exLink.weight += link.weight;
exLink.type = Math.Max(exLink.type, link.type);
}
else
{
AddLink(link.nodeNameA, link.nodeNameB, link.weight, link.type);
}
}
}
public freeGraphLink(freeGraphLinkBase link)
{
//type = link.type;
//weight = link.weight;
linkBase = link;
}
