// TODO: Put strings into the resources.
//
IEnumerable <IMetadataTreeNode> P_LoadNodes(IMetadataLoadContext loadCtx, DirectoryInfo directory, IMetadataTreeNode parentNode = default, bool continuation = default)
{
loadCtx.EnsureNotNull(nameof(loadCtx));
directory.EnsureNotNull(nameof(directory));
//
loadCtx.ThrowIfCancellationRequested();
var buffer = continuation ? null : new List <IMetadataTreeNode>();
var fileNameAndNodeMap = new Dictionary <string, IMetadataTreeNode>(FileSystemAccessUtilities.DefaultPathComparer);
//
var files = directory.GetFiles(searchPattern: "*", searchOption: SearchOption.TopDirectoryOnly);
for (var i = 0; i < files.Length; i++)
{
loadCtx.ThrowIfCancellationRequested();
var file = files[i];
if (ShouldIncludeFile(context: loadCtx, file: file, mediaType: out var fileFormatMediaType))
{
var metadataElement =
new MetadataFileInclusionTreeElement()
{
LocationUri = new Uri(uriString: $"{UriUtilities.UriSchemeFile}://{file.FullName}", uriKind: UriKind.Absolute),
FormatMediaTypeName = fileFormatMediaType
};
var node = new MetadataTreeNode(parent: parentNode, caption: file.Name, metadataElement: metadataElement);
buffer?.Add(node);
fileNameAndNodeMap.Add(Path.GetFileNameWithoutExtension(file.Name), node);
}
}
//
var subdirectories = directory.GetDirectories(searchPattern: "*", searchOption: SearchOption.TopDirectoryOnly);
for (var i = 0; i < subdirectories.Length; i++)
{
loadCtx.ThrowIfCancellationRequested();
var subdirectory = subdirectories[i];
if (!fileNameAndNodeMap.TryGetValue(subdirectory.Name, out var subdirectoryParentNode))
{
MetadataName name;
try {
name = (MetadataName)subdirectory.Name;
}
catch (Exception exception) {
throw new EonException(message: $"Directory name can't be converted to metadata name (type '{typeof(MetadataName)}').{Environment.NewLine}\tDirectory:{subdirectory.FmtStr().GNLI2()}", innerException: exception);
}
var metadataElement = new EmbeddedMetadataTreeElement(embeddedMetadata: new Namespace(name: name), ownsEmbeddedMetadata: true);
var node = new MetadataTreeNode(parent: parentNode, caption: metadataElement.EmbeddedMetadata.Name, metadataElement: metadataElement);
buffer?.Add(node);
subdirectoryParentNode = node;
}
//
P_LoadNodes(loadCtx: loadCtx, directory: subdirectory, parentNode: subdirectoryParentNode, continuation: true);
}
//
return(buffer ?? Enumerable.Empty <IMetadataTreeNode>());
}
/// <summary>
/// Вызывается при копировании объекта.
/// <para>Выполняет заполнение копии объекта <paramref name="copy"/>.</para>
/// </summary>
/// <param name="args">Параметры копирования.</param>
/// <param name="copy">Копия объекта.</param>
protected virtual void PopulateCopy(CopyArgs args, EmbeddedMetadataTreeElement copy)
{
copy.EnsureNotNull(nameof(copy));
//
var originalEmbeddedMetadata = EmbeddedMetadata;
var copyEmbeddedMetadata = default(IMetadata);
try {
copy.WriteDA(
ref _embeddedMetadata,
originalEmbeddedMetadata == null ? null : (copyEmbeddedMetadata = originalEmbeddedMetadata.CreateCopy(readOnlyState: null)).ToValueHolder(true));
}
catch (Exception firstException) {
DisposeMany(firstException, copyEmbeddedMetadata);
throw;
}
}