/// <summary>
/// Initializes a new instance of <see cref="NodeSnippet"/>.
/// </summary>
/// <param name="node">Initializes the required <see cref="Node"/>.</param>
public NodeSnippet(Node node)
{
// Data validation
if (null == node)
throw new ArgumentNullException("node");
// Initialize
this.Node = node;
}
/// <summary>
/// Builds a snippet from a directory info.
/// </summary>
/// <param name="rootDirectory">The root directory.</param>
/// <param name="directoryInfo">The directory info.</param>
/// <returns>The built snippet.</returns>
private Snippet BuildSnippet(DirectoryInfoBase rootDirectory, FileSystemInfoBase[] directoryInfo)
{
// Compute root directory name
string rootDirectoryName = rootDirectory.Name;
if (string.IsNullOrWhiteSpace(rootDirectoryName))
{
rootDirectoryName = Path.GetFileName(rootDirectory.FullName);
}
// Create root node
Node root = new Node(rootDirectoryName, false);
// Browse all file system info matching the search pattern
foreach (FileSystemInfoBase fileSystemInfo in directoryInfo.Where(x => rootDirectory.FullName != x.FullName))
{
// Compute relative path
string relativePath = fileSystemInfo.FullName.Substring(1 + rootDirectory.FullName.Length);
// Initialize the current node to root and process each search result
Node currentNode = root;
while (relativePath.Contains(Path.DirectorySeparatorChar))
{
// Compute current node name from node path
int pos = relativePath.IndexOf(Path.DirectorySeparatorChar);
string nodeName = relativePath.Substring(0, pos);
// In the node already exists, just flip the current node
if (currentNode.Children.ContainsKey(nodeName))
{
currentNode = currentNode.Children[nodeName];
}
// Otherwise create a new child and flip the current node
else
{
Node tmpNode = new Node(nodeName, false);
currentNode.Children[nodeName] = tmpNode;
currentNode = tmpNode;
}
// Update the current relative path
relativePath = relativePath.Substring(1 + pos);
}
// Compute last filesystem info name
string fileSystemInfoName = fileSystemInfo.Name;
if (string.IsNullOrWhiteSpace(fileSystemInfoName))
{
fileSystemInfoName = Path.GetFileName(fileSystemInfo.FullName);
}
// Add the remaining relative path as node
currentNode.Children[relativePath] = new Node(fileSystemInfoName, fileSystemInfo is FileInfoBase);
}
// Return root as node snippet
return new NodeSnippet(root);
}
