/// <summary>
/// Function to deserialize a dependency collection from an XML node.
/// </summary>
/// <param name="dependenciesNode">The list of nodes that contain the dependencies.</param>
/// <returns>The deserialized dependencies.</returns>
internal static GorgonEditorDependencyCollection Deserialize(IEnumerable <XElement> dependenciesNode)
{
var result = new GorgonEditorDependencyCollection();
foreach (GorgonEditorDependency dependency in dependenciesNode.Select(GorgonEditorDependency.Deserialize))
{
result._dependencies[new DependencyKey(dependency.Path, dependency.Type)] = dependency;
}
return(result);
}
/// <summary>
/// Function to retrieve the dependencies file and process it.
/// </summary>
private void GetDependencies()
{
if ((_hasMetaData != null) &&
(!_hasMetaData.Value))
{
return;
}
// If we've already loaded the file system meta data for this file system, then leave.
if (_metaDataFile != null)
{
return;
}
GorgonFileSystemFileEntry file = FileSystem.GetFile(MetaDataFile);
if (file == null)
{
_hasMetaData = false;
return;
}
// Create and load the object.
using (Stream metaFile = file.OpenStream(false))
{
_metaDataFile = XDocument.Load(metaFile);
}
XElement rootNode = _metaDataFile.Element(MetaDataRootName);
if (rootNode == null)
{
_hasMetaData = false;
return;
}
XElement dependencyNode = rootNode.Element(ContentDependencyFiles);
if (dependencyNode == null)
{
_hasMetaData = false;
return;
}
IEnumerable <XElement> fileNodes = dependencyNode.Elements(FileNode);
var dependencies = new Dictionary <string, GorgonEditorDependencyCollection>();
// Lock here because we're updating a collection that's not thread safe.
foreach (XElement fileNode in fileNodes)
{
XAttribute path = fileNode.Attribute(NameAttr);
if ((path == null) ||
(string.IsNullOrWhiteSpace(path.Value)))
{
continue;
}
dependencies.Add(path.Value,
GorgonEditorDependencyCollection
.Deserialize(fileNode.Elements(GorgonEditorDependency.DependencyNode)));
}
Dependencies = dependencies;
_hasMetaData = Dependencies.Count > 0;
}
