internal Assembly ResolveResourceAssembly(string path, bool failOnMissingAssembly)
{
if (assemblies == null)
{
lock (SyncRoot) {
if (assemblies == null)
{
assemblies = new Dictionary <string, Assembly>();
AppDomain.CurrentDomain.AssemblyLoad += delegate { newAssembliesLoaded = true; };
}
}
}
var assemblyName = ResourceUrl.GetEmbeddedResourceAssemblyName(path);
var assembly = GetAssemblyByName(assemblyName);
if (assembly == null)
{
if (newAssembliesLoaded)
{
lock (SyncRoot) {
if (newAssembliesLoaded)
{
// add loaded assemblies to cache
newAssembliesLoaded = false;
foreach (var domainAssembly in AppDomain.CurrentDomain.GetAssemblies())
{
// replace if duplicated (can happen)
assemblies[domainAssembly.GetName().Name] = domainAssembly;
}
}
}
}
assembly = GetAssemblyByName(assemblyName);
if (assembly == null)
{
try {
// try load assembly from its name
var assemblyPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, assemblyName + ".dll");
assembly = AssemblyLoadContext.Default.LoadFromAssemblyPath(assemblyPath);
} catch (IOException) {
// ignore
}
if (assembly != null)
{
lock (SyncRoot) {
assemblies[assembly.GetName().Name] = assembly;
}
}
}
}
if (failOnMissingAssembly && assembly == null)
{
throw new InvalidOperationException("Could not find assembly for: " + path);
}
return(assembly);
}
internal static Stream TryGetResource(string url, bool failOnMissingAssembly, out string extension)
{
var resourceAssembly = cache.ResolveResourceAssembly(url, failOnMissingAssembly);
if (resourceAssembly == null)
{
extension = string.Empty;
return(null);
}
var resourcePath = ResourceUrl.GetEmbeddedResourcePath(url);
extension = Path.GetExtension(resourcePath.Last()).ToLower();
var resourceStream = TryGetResourceWithFullPath(resourceAssembly, resourcePath);
return(resourceStream);
}