/// <summary>
/// Loads the assemblies specified for this <c>AssemblyLoader</c> instance and executes their entry point.
/// </summary>
private void Execute(bool isDelayed, int waitForAppDomainReadinessElapsedMs)
{
#if DEBUG
const string BuildConfiguration = "Debug";
#else
const string BuildConfiguration = "Release";
#endif
Log.Info(LoggingComponentMoniker,
"Initializing...",
"Managed Loader build configuration", BuildConfiguration,
nameof(isDelayed), isDelayed,
nameof(waitForAppDomainReadinessElapsedMs), waitForAppDomainReadinessElapsedMs,
$"{nameof(IsExecuteDelayedEnabled)}()", IsExecuteDelayedEnabled(),
$"{nameof(IsAppHostedInIis)}()", IsAppHostedInIis(),
$"{nameof(GetIisExecutionDelayMs)}()", GetIisExecutionDelayMs());
AnalyzeAppDomain();
AssemblyResolveEventHandler assemblyResolveEventHandler = CreateAssemblyResolveEventHandler();
if (assemblyResolveEventHandler == null)
{
return;
}
Log.Info(LoggingComponentMoniker, "Registering AssemblyResolve handler");
try
{
AppDomain.CurrentDomain.AssemblyResolve += assemblyResolveEventHandler.OnAssemblyResolve;
}
catch (Exception ex)
{
Log.Error(LoggingComponentMoniker, "Error while registering an AssemblyResolve event handler", ex);
}
LogStartingToLoadAssembliesInfo(assemblyResolveEventHandler);
for (int i = 0; i < assemblyResolveEventHandler.AssemblyNamesToLoad.Count; i++)
{
string assemblyName = assemblyResolveEventHandler.AssemblyNamesToLoad[i];
try
{
LoadAndStartAssembly(assemblyName);
}
catch (Exception ex)
{
Log.Error(LoggingComponentMoniker, "Error loading or starting a managed assembly", ex, "assemblyName", assemblyName);
}
}
}
/// <summary>
/// Loads the assemblied specified for this <c>AssemblyLoader</c> instance and executes their entry point.
/// </summary>
public void Execute()
{
Log.Info(LoggingComponentMoniker,
"Initializing...",
"Managed Loader build configuration",
#if DEBUG
"Debug"
#else
"Release"
#endif
);
AnalyzeAppDomain();
AssemblyResolveEventHandler assemblyResolveEventHandler = CreateAssemblyResolveEventHandler();
if (assemblyResolveEventHandler == null)
{
return;
}
Log.Info(LoggingComponentMoniker, "Registering AssemblyResolve handler");
try
{
AppDomain.CurrentDomain.AssemblyResolve += assemblyResolveEventHandler.OnAssemblyResolve;
}
catch (Exception ex)
{
Log.Error(LoggingComponentMoniker, "Error while registering an AssemblyResolve event handler", ex);
}
LogStartingToLoadAssembliesInfo(assemblyResolveEventHandler);
for (int i = 0; i < assemblyResolveEventHandler.AssemblyNamesToLoad.Count; i++)
{
string assemblyName = assemblyResolveEventHandler.AssemblyNamesToLoad[i];
try
{
LoadAndStartAssembly(assemblyName);
}
catch (Exception ex)
{
Log.Error(LoggingComponentMoniker, "Error loading or starting a managed assembly", ex, "assemblyName", assemblyName);
}
}
}
private static void LogStartingToLoadAssembliesInfo(AssemblyResolveEventHandler assemblyResolveEventHandler)
{
var logEntryDetails = new List <object>();
logEntryDetails.Add("Number of assemblies");
logEntryDetails.Add(assemblyResolveEventHandler.AssemblyNamesToLoad.Count);
logEntryDetails.Add("Number of product binaries directories");
logEntryDetails.Add(assemblyResolveEventHandler.ManagedProductBinariesDirectories.Count);
for (int i = 0; i < assemblyResolveEventHandler.ManagedProductBinariesDirectories.Count; i++)
{
logEntryDetails.Add($"managedProductBinariesDirectories[{i}]");
logEntryDetails.Add(assemblyResolveEventHandler.ManagedProductBinariesDirectories[i]);
}
Log.Info(LoggingComponentMoniker, "Starting to load assemblies", logEntryDetails);
}
private AssemblyResolveEventHandler CreateAssemblyResolveEventHandler()
{
// Pick the list that we want to load:
string[] assemblyListToUse = _isDefaultAppDomain
? _assemblyNamesToLoadIntoDefaultAppDomain
: _assemblyNamesToLoadIntoNonDefaultAppDomains;
// Set class fields to null so that the arrays can be collected. The "assemblyResolveEventHandler" will encpsulate the data needed.
_assemblyNamesToLoadIntoDefaultAppDomain = _assemblyNamesToLoadIntoNonDefaultAppDomains = null;
IReadOnlyList <string> assemblyNamesToLoad = CleanAssemblyNamesToLoad(assemblyListToUse);
if (assemblyNamesToLoad == null)
{
return(null);
}
IReadOnlyList <string> managedProductBinariesDirectories = ResolveManagedProductBinariesDirectories();
var assemblyResolveEventHandler = new AssemblyResolveEventHandler(assemblyNamesToLoad, managedProductBinariesDirectories);
return(assemblyResolveEventHandler);
}
