/// <summary>
/// Function to load a single dependency for a file.
/// </summary>
/// <param name="dependency">Dependency to load.</param>
/// <param name="childDependencies">The dependencies for this dependency.</param>
/// <returns>The loaded dependency object.</returns>
private object LoadDependency(GorgonEditorDependency dependency, IReadOnlyDictionary <GorgonEditorDependency, object> childDependencies)
{
GorgonFileSystemFileEntry dependencyFile = FileSystem.GetFile(dependency.Path);
if (dependencyFile == null)
{
throw new IOException(string.Format(Resources.GORFS_ERR_DEPENDENCY_NOT_FOUND, dependency.Path));
}
// Find a handler for this file.
KeyValuePair <Type, Func <Stream, IReadOnlyDictionary <GorgonEditorDependency, object>, object> > handler =
_fileHandlers.FirstOrDefault(item =>
string.Equals(item.Key.FullName,
dependency.Type,
StringComparison.OrdinalIgnoreCase));
if (handler.Key == null)
{
throw new IOException(string.Format(Resources.GORFS_ERR_FILE_NO_HANDLER, dependency.Path));
}
using (Stream dependencyStream = dependencyFile.OpenStream(false))
{
return(handler.Value(dependencyStream, childDependencies));
}
}
/// <summary>
/// Function to deserialize a dependency from an XML node.
/// </summary>
/// <param name="element">Element containing the serialized dependency.</param>
/// <returns>A dependency deserialized from the XML node.</returns>
internal static GorgonEditorDependency Deserialize(XElement element)
{
XAttribute typeAttr = element.Attribute(DependencyTypeAttr);
XElement pathNode = element.Element(DependencyPathNode);
if ((typeAttr == null) ||
(pathNode == null) ||
(string.IsNullOrWhiteSpace(typeAttr.Value)) ||
(string.IsNullOrWhiteSpace(pathNode.Value)))
{
throw new GorgonException(GorgonResult.CannotRead, Resources.GORFS_ERR_DEPENDENCY_CORRUPT);
}
var result = new GorgonEditorDependency(pathNode.Value, typeAttr.Value);
XElement propertiesNode = element.Element(GorgonEditorDependencyPropertyCollection.PropertiesNode);
if (propertiesNode != null)
{
result.Properties = GorgonEditorDependencyPropertyCollection.Deserialize(propertiesNode);
}
return(result);
}