private IStreamTreeNode AddPath(string[] path, IStreamMetadata streamMetadata, int depth)
{
var child = this.InternalChildren.FirstOrDefault(p => p.Name == path[depth - 1]) as StreamTreeNode;
if (child == null)
{
child = new StreamTreeNode(this.Partition)
{
Path = string.Join(".", path.Take(depth)),
Name = path[depth - 1],
};
this.InternalChildren.Add(child);
}
// if we are at the last segement of the path name then we are at the leaf node
if (path.Length == depth)
{
Debug.Assert(child.StreamMetadata == null, "There should never be two leaf nodes");
child.StreamMetadata = streamMetadata;
child.TypeName = streamMetadata.TypeName;
child.StreamName = streamMetadata.Name;
return(child);
}
// we are not at the last segment so recurse in
return(child.AddPath(path, streamMetadata, depth + 1));
}
/// <summary>
/// Initializes a new instance of the <see cref="DerivedMemberStreamTreeNode"/> class.
/// </summary>
/// <param name="parent">The parent stream tree node.</param>
/// <param name="memberInfo">The member information.</param>
/// <param name="memberType">The type of the member.</param>
/// <param name="generateNullable">Indicates whether this is an auto-generated nullable expansion.</param>
public DerivedMemberStreamTreeNode(StreamTreeNode parent, MemberInfo memberInfo, Type memberType, bool generateNullable)
: base(
parent.PartitionViewModel,
$"{parent.Path}.{memberInfo.Name}",
memberInfo.Name,
parent.SourceStreamMetadata)
{
this.DataTypeName =
generateNullable ?
typeof(Nullable <>).MakeGenericType(memberType).AssemblyQualifiedName :
memberType.AssemblyQualifiedName;
this.MemberPath =
parent is DerivedMemberStreamTreeNode expandedMemberParent ?
$"{expandedMemberParent.MemberPath}.{memberInfo.Name}" :
memberInfo.Name;
this.IsAutoGeneratedNullableMember = generateNullable;
}
/// <summary>
/// Recursively searches for a stream with a given name, and if it is found selects it and ensures all parent nodes are expanded.
/// </summary>
/// <param name="streamName">The name of the stream to find.</param>
/// <returns>A stream tree node, or null if the stream was not found.</returns>
public StreamTreeNode SelectNode(string streamName)
{
if (this.StreamName == streamName)
{
this.IsTreeNodeSelected = true;
return(this);
}
foreach (StreamTreeNode streamTreeNode in this.Children)
{
StreamTreeNode foundStream = streamTreeNode.SelectNode(streamName);
if (foundStream != null)
{
this.IsTreeNodeExpanded = true;
return(foundStream);
}
}
return(null);
}
