private void HandlePastUpdates(CancellationToken cancel)
{
try // do not fail updater on handling old updates
{
foreach (var sectionInfo in updatesStorageEntry.EnumSections(cancel))
{
if (!sectionInfo.Key.StartsWith(Constants.updateLogKeyPrefix, StringComparison.OrdinalIgnoreCase))
{
continue;
}
trace.Info("found update log key={0}, id={1}", sectionInfo.Key, sectionInfo.Id);
string sectionAbsolutePath;
using (var section = updatesStorageEntry.OpenRawStreamSection(sectionInfo.Key, StorageSectionOpenFlag.ReadOnly))
{
string logContents;
using (var reader = new StreamReader(section.Data))
logContents = reader.ReadToEnd();
trace.Info("log:{1}{0}", logContents, Environment.NewLine);
sectionAbsolutePath = section.AbsolutePath;
if (!logContents.Contains("Update SUCCEEDED"))
{
trace.Warning("last update was not successful. reporting to telemetry.");
telemetry.ReportException(new PastUpdateFailedException(sectionInfo.Key, logContents), "past update failed");
}
// todo: find pending update folder, check if it exists, clean
}
try
{
File.Delete(sectionAbsolutePath);
trace.Info("deleted update log {0}", sectionAbsolutePath);
}
catch (Exception e)
{
trace.Error(e, "failed to delete old update log");
telemetry.ReportException(e, "delete old update log");
}
}
}
catch (Exception e)
{
trace.Error(e, "failed to handle old updates");
}
}
private void InitPlugins(Telemetry.ITelemetryCollector telemetry)
{
using (tracer.NewFrame)
{
string thisPath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
tracer.Info("plugins directory: {0}", thisPath);
foreach (string pluginPath in Directory.GetFiles(thisPath, "*.plugin.dll"))
{
tracer.Info("---> plugin found {0}", pluginPath);
Stopwatch sw = Stopwatch.StartNew();
Assembly pluginAsm;
try
{
pluginAsm = Assembly.LoadFrom(pluginPath);
}
catch (Exception e)
{
tracer.Error(e, "failed to load plugin");
telemetry.ReportException(e, "loading pluging " + pluginPath);
continue;
}
var loadTime = sw.Elapsed;
Type pluginType = pluginAsm.GetType("LogJoint.Plugin");
if (pluginType == null)
{
tracer.Warning("plugin class not found in plugin assembly");
continue;
}
if (!typeof(PluginBase).IsAssignableFrom(pluginType))
{
tracer.Warning("plugin class doesn't inherit PluginBase");
continue;
}
sw.Restart();
PluginBase plugin;
try
{
plugin = (PluginBase)Activator.CreateInstance(pluginType);
}
catch (Exception e)
{
tracer.Error(e, "failed to create an instance of plugin");
telemetry.ReportException(e, "creation of plugin " + pluginPath);
continue;
}
var instantiationTime = sw.Elapsed;
sw.Restart();
try
{
plugin.Init(entryPoint);
}
catch (Exception e)
{
plugin.Dispose();
tracer.Error(e, "failed to init an instance of plugin");
telemetry.ReportException(e, "initializtion of plugin " + pluginPath);
continue;
}
var initTime = sw.Elapsed;
tracer.Info("plugin {0} accepted. times: loading={1}, instantiation={2}, initialization={3}",
Path.GetFileName(pluginPath), loadTime, instantiationTime, initTime);
plugins.Add(plugin);
}
}
}