/// <summary>
/// Searches for extensions in a particular file and tries to load them.
/// </summary>
/// <param name="file">The file to load.</param>
/// <param name="extension">The extension that the file contains</param>
/// <returns>Returns an array of loading results, indicating which extension loaded succesfully and which didn't.</returns>
public ExtensionLoadResult[] LoadExtensions(ExtensionLibraryData file)
{
try
{
if (LoadedExtensions.FirstOrDefault(x => x.GetType().Assembly.Location.Equals(file.GetAbsolutePath(), StringComparison.OrdinalIgnoreCase)) != null)
{
throw new InvalidOperationException("The extension library is already loaded.");
}
var extensionTypes = SearchExtensionTypes(file);
if (extensionTypes.Length == 0)
{
throw new BadImageFormatException(string.Format("No extension classes found in file {0}", file));
}
var results = new ExtensionLoadResult[extensionTypes.Length];
for (int i = 0; i < extensionTypes.Length; i++)
{
results[i] = LoadExtension(extensionTypes[i]);
}
return(results);
}
catch (Exception ex)
{
return(new ExtensionLoadResult[] { new ExtensionLoadResult(file.GetAbsolutePath(), ex) });
}
}
/// <summary>
/// Searches for extension types in a specific file.
/// </summary>
/// <param name="file">The file to search for extensions.</param>
/// <returns>Returns an array of types that are extensions.</returns>
public Type[] SearchExtensionTypes(ExtensionLibraryData file)
{
var extensionTypes = new List <Type>();
var assembly = Assembly.LoadFile(file.GetAbsolutePath());
foreach (Type type in assembly.GetTypes())
{
if (type.BaseType == typeof(LiteExtension))
{
extensionTypes.Add(type);
}
}
return(extensionTypes.ToArray());
}
/// <summary>
/// Searches for extension types in a specific file.
/// </summary>
/// <param name="file">The file to search for extensions.</param>
/// <returns>Returns an array of types that are extensions.</returns>
public Type[] SearchExtensionTypes(ExtensionLibraryData file)
{
var extensionTypes = new List <Type>();
var assembly = Assembly.LoadFile(file.GetAbsolutePath());
_resolvedAssemblies.Add(assembly.FullName, assembly);
foreach (Type type in assembly.GetTypes())
{
if (!type.IsAbstract && type.BaseType.IsBasedOn(typeof(LiteExtension)))
{
extensionTypes.Add(type);
}
}
return(extensionTypes.ToArray());
}