} // applyMergeChoices()
public void _applyMergeChoicesToNode(MergeInfoData Choices, MergeInfoData.MergeInfoNodePair nodePair, CswNbtNode resultNode)
{
CswNbtNode Node1 = _CswNbtResources.Nodes[nodePair.Node1Id];
CswNbtNode Node2 = _CswNbtResources.Nodes[nodePair.Node2Id];
if (null != Node1 && null != Node2)
{
/*
* Copy all the values from Node2 into the result and then copy any properties from Node1 into the result that were selected
* This is to ensure we copy property values we didn't have to merge.
*/
resultNode.copyPropertyValuesGeneric(Node2);
foreach (MergeInfoData.MergeInfoProperty mergeProp in nodePair.Properties.Where(mergeProp => mergeProp.Choice == 1))
{
resultNode.Properties[mergeProp.NodeTypePropId].copyGeneric(Node1.Properties[mergeProp.NodeTypePropId]);
}
// Set references to new merged node
if (Int32.MinValue != nodePair.NodeReferencePropId)
{
// Find the new nodeid for the value of the reference
ICswNbtNodePropNodeReference NodeReferenceProp = resultNode.Properties[nodePair.NodeReferencePropId].AsNodeReference;
CswPrimaryKey oldNodeId = NodeReferenceProp.ReferencedNodeId;
MergeInfoData.MergeInfoNodePair otherNodePair = Choices.NodePairs.FirstOrDefault(np => np.Node1Id == oldNodeId.ToString() || np.Node2Id == oldNodeId.ToString());
if (null != otherNodePair)
{
// Set the reference to point to the new merged node
NodeReferenceProp.ReferencedNodeId = CswConvert.ToPrimaryKey(otherNodePair.Node2Id);
}
} // if( Int32.MinValue != nodePair.NodeReferencePropId )
} // if( null != Node1 && null != Node2 )
} // _applyMergeChoicesToNode()
/// <summary>
/// Create a dictionary of the unique key values of related nodes
/// As a side effect, also populate MergeInfoData.NodePair.NodeReferences
/// </summary>
private Dictionary <CswDelimitedString, CswPrimaryKey> _getUniqueKeysDict(MergeInfoData.MergeInfoNodePair NodePair, CswNbtNode Node, CswNbtMetaDataNodeTypeProp NodeReferenceProp)
{
Dictionary <CswDelimitedString, CswPrimaryKey> ret = new Dictionary <CswDelimitedString, CswPrimaryKey>();
char delimiter = '|';
// Find unique properties for this reference's nodetype
IEnumerable <CswNbtMetaDataNodeTypeProp> UniqueProps = NodeReferenceProp.getNodeType().getUniqueProps();
// Create a view of nodes that point to the target node via this reference
CswNbtView view = new CswNbtView(_CswNbtResources);
CswNbtViewRelationship rel1 = view.AddViewRelationship(Node.getNodeType(), false);
rel1.NodeIdsToFilterIn.Add(Node.NodeId);
CswNbtViewRelationship rel2 = view.AddViewRelationship(rel1, CswEnumNbtViewPropOwnerType.Second, NodeReferenceProp, false);
foreach (CswNbtMetaDataNodeTypeProp uniqueProp in UniqueProps)
{
view.AddViewProperty(rel2, uniqueProp);
}
// Iterate children and store unique property values in a dictionary key
ICswNbtTree tree = _CswNbtResources.Trees.getTreeFromView(view, RequireViewPermissions: false, IncludeHiddenNodes: true, IncludeSystemNodes: true);
if (tree.getChildNodeCount() > 0)
{
tree.goToNthChild(0);
for (Int32 c = 0; c < tree.getChildNodeCount(); c++)
{
tree.goToNthChild(c);
CswPrimaryKey thisNodeId = tree.getNodeIdForCurrentPosition();
// Populate MergeInfoData.NodePair.NodeReferences while we're here
NodePair.NodeReferences.Add(new MergeInfoData.MergeInfoNodeReference()
{
NodeId = thisNodeId.ToString(),
NodeTypePropId = NodeReferenceProp.PropId
});
CswDelimitedString key;
if (_AllUniqueKeys.ContainsKey(thisNodeId))
{
// If we've seen this node before, use the existing key but override the merge property
// (this will allow us to merge correctly if a nodetype has
// multiple compound unique references that are all involved in the merge)
key = _AllUniqueKeys[thisNodeId];
for (Int32 u = 0; u < UniqueProps.Count(); u++)
{
if (UniqueProps.ElementAt(u).PropId == NodeReferenceProp.PropId)
{
// This value will be equal after the merge
key[u] = "[mergeresult]";
}
} // foreach( CswNbtMetaDataNodeTypeProp uniqueProp in UniqueProps )
} // if( _AllUniqueKeys.ContainsKey( thisNodeId ) )
else
{
// generate a new key
key = new CswDelimitedString(delimiter);
foreach (CswNbtMetaDataNodeTypeProp uniqueProp in UniqueProps)
{
CswNbtTreeNodeProp prop = tree.getChildNodePropsOfNode().FirstOrDefault(p => p.NodeTypePropId == uniqueProp.PropId);
if (null != prop)
{
if (prop.NodeTypePropId == NodeReferenceProp.PropId)
{
// This value will be equal after the merge
key.Add("[mergeresult]");
}
else
{
key.Add(prop.Gestalt);
}
}
else
{
key.Add("");
}
} // foreach( CswNbtMetaDataNodeTypeProp uniqueProp in UniqueProps )
} // if-else( _AllUniqueKeys.ContainsKey( thisNodeId ) )
if (key.Count > 0)
{
ret.Add(key, thisNodeId);
_AllUniqueKeys[thisNodeId] = key;
}
tree.goToParentNode();
} // for( Int32 c = 0; c < tree.getChildNodeCount(); c++ )
} // if( tree.getChildNodeCount() > 0 )
return(ret);
} // _getUniqueKeysDict()
} // getMergeInfo()
private void _addMergeNodes(MergeInfoData ret, CswPrimaryKey NodeId1, CswPrimaryKey NodeId2, CswNbtMetaDataNodeTypeProp NodeReferenceProp = null)
{
CswNbtNode Node1 = _CswNbtResources.Nodes[NodeId1];
CswNbtNode Node2 = _CswNbtResources.Nodes[NodeId2];
if (null != Node1 && null != Node2)
{
// Make sure there isn't already a node pair for these nodes
if (false == ret.NodePairs.Any(np => (np.Node1Id == Node1.NodeId.ToString() && np.Node2Id == Node2.NodeId.ToString()) ||
(np.Node1Id == Node2.NodeId.ToString() && np.Node2Id == Node1.NodeId.ToString())))
{
CswNbtMetaDataNodeType Node1NT = Node1.getNodeType();
MergeInfoData.MergeInfoNodePair NodePair = new MergeInfoData.MergeInfoNodePair();
NodePair.NodeReferences = new Collection <MergeInfoData.MergeInfoNodeReference>();
NodePair.NodeTypeName = Node1NT.NodeTypeName;
NodePair.Node1Id = Node1.NodeId.ToString();
NodePair.Node2Id = Node2.NodeId.ToString();
NodePair.Node1Name = Node1.NodeName;
NodePair.Node2Name = Node2.NodeName;
if (null != NodeReferenceProp)
{
NodePair.NodeReferencePropId = NodeReferenceProp.PropId;
}
else
{
NodePair.NodeReferencePropId = Int32.MinValue;
}
foreach (CswNbtNodePropWrapper Prop1 in Node1.Properties.Where(p => (null == NodeReferenceProp || p.NodeTypePropId != NodeReferenceProp.PropId)))
{
CswNbtNodePropWrapper Prop2 = Node2.Properties[Prop1.NodeTypePropId];
if (null == Prop2 || Prop1.Gestalt != Prop2.Gestalt)
{
NodePair.Properties.Add(new MergeInfoData.MergeInfoProperty()
{
PropName = Prop1.PropName,
NodeTypePropId = Prop1.NodeTypePropId,
Node1Value = Prop1.Gestalt,
Node2Value = Prop2.Gestalt
});
} // if( null == Prop2 || Prop1.Gestalt != Prop2.Gestalt )
} // foreach( CswNbtNodePropWrapper Prop1 in Node1.Properties )
ret.NodePairs.Add(NodePair);
// If two nodes that formerly related to each of node1 and node2 now relate to the merged target,
// and they now would be compound unique violations, we have to merge those too.
// First, find references that point to the merged nodes
foreach (CswNbtMetaDataNodeTypeProp thisProp in _CswNbtResources.MetaData.getNodeTypeProps().Where(p => p.IsNodeReference() && p.FkMatches(Node1.getNodeType())))
{
// Find unique key sets for nodes using this reference that point to either node1 or node2
Dictionary <CswDelimitedString, CswPrimaryKey> Node1UniqueKeysDict = _getUniqueKeysDict(NodePair, Node1, thisProp);
Dictionary <CswDelimitedString, CswPrimaryKey> Node2UniqueKeysDict = _getUniqueKeysDict(NodePair, Node2, thisProp);
// Look for redundant keys to indicate a potential unique violation
foreach (CswDelimitedString key in Node1UniqueKeysDict.Keys)
{
if (Node2UniqueKeysDict.ContainsKey(key))
{
// unique violation! gotta merge these too.
_addMergeNodes(ret, Node1UniqueKeysDict[key], Node2UniqueKeysDict[key], thisProp);
}
} // foreach( CswDelimitedString key in Node1UniqueKeysDict.Keys )
} // foreach( CswNbtMetaDataNodeTypeProp thisProp in _CswNbtResources.MetaData.getNodeTypeProps().Where( p => p.IsNodeReference() ) )
// Special case: UserSelect properties
if (Node1NT.getObjectClassValue() == CswEnumNbtObjectClass.UserClass)
{
foreach (CswNbtMetaDataNodeTypeProp thisUserSelProp in _CswNbtResources.MetaData.getNodeTypeProps(CswEnumNbtFieldType.UserSelect))
{
// Create a view of nodes that point to either merged node via this reference
CswNbtView view = new CswNbtView(_CswNbtResources);
CswNbtViewRelationship rel1 = view.AddViewRelationship(thisUserSelProp.getNodeType(), false);
view.AddViewPropertyAndFilter(rel1,
thisUserSelProp,
Conjunction: CswEnumNbtFilterConjunction.And,
FilterMode: CswEnumNbtFilterMode.Contains,
Value: Node1.NodeId.PrimaryKey.ToString());
view.AddViewPropertyAndFilter(rel1,
thisUserSelProp,
Conjunction: CswEnumNbtFilterConjunction.Or,
FilterMode: CswEnumNbtFilterMode.Contains,
Value: Node2.NodeId.PrimaryKey.ToString());
// Add nodes with matching UserSelect properties to NodeReferences for later updating
ICswNbtTree tree = _CswNbtResources.Trees.getTreeFromView(view, RequireViewPermissions: false, IncludeHiddenNodes: true, IncludeSystemNodes: true);
for (Int32 c = 0; c < tree.getChildNodeCount(); c++)
{
tree.goToNthChild(c);
NodePair.NodeReferences.Add(new MergeInfoData.MergeInfoNodeReference()
{
NodeId = tree.getNodeIdForCurrentPosition().ToString(),
NodeTypePropId = thisUserSelProp.PropId
});
tree.goToParentNode();
} // for( Int32 c = 0; c < tree.getChildNodeCount(); c++ )
} // foreach( CswNbtMetaDataNodeTypeProp thisUserSelProp in _CswNbtResources.MetaData.getNodeTypeProps( CswEnumNbtFieldType.UserSelect ) )
} // if( Node1NT.getObjectClassValue() == CswEnumNbtObjectClass.UserClass )
} // if(false == ret.NodePairs.Any( ... ))
} // if( null != Node1 && null != Node2 )
} // _addMergeNodes()