private IEnumerable <DependencyReferenceDescriptor> ProcessExtensionReferences(ExtensionLoadingContext context, ExtensionProbeEntry activatedExtension)
{
if (activatedExtension == null)
{
return(Enumerable.Empty <DependencyReferenceDescriptor>());
}
var referenceNames = (context.ReferencesByModule.ContainsKey(activatedExtension.Descriptor.Id) ?
context.ReferencesByModule[activatedExtension.Descriptor.Id] :
Enumerable.Empty <ExtensionReferenceProbeEntry>())
.Select(r => r.Name)
.Distinct(StringComparer.OrdinalIgnoreCase);
var referencesDecriptors = new List <DependencyReferenceDescriptor>();
foreach (var referenceName in referenceNames)
{
ProcessExtensionReference(context, referenceName, referencesDecriptors);
}
return(referencesDecriptors);
}
private DateTime GetVirtualPathDepedenciesModificationTimeUtc(ConcurrentDictionary <string, DateTime> virtualPathDependencies, ExtensionProbeEntry probe)
{
if (!probe.VirtualPathDependencies.Any())
{
return(DateTime.MinValue);
}
Logger.InfoFormat("Retrieving modification dates of dependencies of extension '{0}'", probe.Descriptor.Id);
var result = probe.VirtualPathDependencies.Max(path => GetVirtualPathModificationTimeUtc(virtualPathDependencies, path));
Logger.InfoFormat("Done retrieving modification dates of dependencies of extension '{0}'", probe.Descriptor.Id);
return(result);
}
private DateTime?GetVirtualPathDepedenciesModificationTimeUtc(ConcurrentDictionary <string, DateTime> virtualPathDependencies, ExtensionProbeEntry probe)
{
if (!probe.VirtualPathDependencies.Any())
{
return(null);
}
Logger.Information("正在修改扩展 '{0}' 依赖项的日期", probe.Descriptor.Id);
var result = probe.VirtualPathDependencies.Max(path => GetVirtualPathModificationTimeUtc(virtualPathDependencies, path));
Logger.Information("完成扩展 '{0}' 依赖项的日期修改", probe.Descriptor.Id);
return(result);
}
/// <summary>
/// 探测。
/// </summary>
/// <param name="descriptor">扩展描述符条目。</param>
/// <returns>扩展探测条目。</returns>
public override ExtensionProbeEntry Probe(ExtensionDescriptorEntry descriptor)
{
if (Disabled)
return null;
Logger.Information("探测模块 '{0}'", descriptor.Id);
var assemblyPath = GetAssemblyPath(descriptor);
if (assemblyPath == null)
return null;
var result = new ExtensionProbeEntry
{
Descriptor = descriptor,
Loader = this,
VirtualPath = assemblyPath,
VirtualPathDependencies = new[] { assemblyPath },
};
Logger.Information("完成模块 '{0}' 探测", descriptor.Id);
return result;
}
