private void SetupEssentials(IServiceScopeFactory scopeFactory)
{
_logger.LogInformation("Setting up essentials");
var scope = scopeFactory.CreateScope();
_probeMonitor = scope.ServiceProvider.GetRequiredService <ProbeMonitor>();
_probeMonitor.MonitorStateChanged += MonitorStateChanged;
_syncManager = scope.ServiceProvider.GetRequiredService <SyncManager>();
_syncManager.SyncStateChanged += SyncStateChanged;
_managedService = scope.ServiceProvider.GetRequiredService <DnsService>();
_managedService.ServiceStateChanged += ServiceStateChanged;
_serviceControl = scope.ServiceProvider.GetRequiredService <ServiceControl>();
_serviceControl.ServiceControlRequest += ServiceControlActionRequest;
_logger.LogInformation("Essentials have been set up");
}
static void ProgramStart(ref bool serviceRunning)
{
string path = System.Reflection.Assembly.GetExecutingAssembly().Location;
path = System.IO.Path.GetDirectoryName(path);
Trace.Listeners.Add(new ConsoleTraceListener());
Trace.Listeners.Add(new LogTraceListener(path + "\\SnakeEyes.txt"));
Trace.AutoFlush = true;
Trace.WriteLine("Starting SnakeEyes...");
EventLog eventLog = null;
try
{
if (EventLog.SourceExists("SnakeEyes"))
{
eventLog = new EventLog();
eventLog.Source = "SnakeEyes";
}
else
{
Trace.WriteLine("Warning not installed properly. Cannot write to EventLog");
}
}
catch (System.Security.SecurityException ex)
{
Trace.WriteLine("Warning not installed properly. Cannot write to EventLog : %1", ex.Message);
}
var builder = new Autofac.Builder.ContainerBuilder();
builder.RegisterCollection <IProbe>().As <IEnumerable <IProbe> >();
var dynamicProbes = ProbeTypeLoader.LoadList(typeof(IProbe), path);
dynamicProbes.AddRange(ProbeTypeLoader.LoadList(typeof(IProbe), System.IO.Path.Combine(path, "Probes")));
foreach (var probeType in dynamicProbes)
{
builder.Register(probeType).As <IProbe>().ExternallyOwned().FactoryScoped().Named(probeType.FullName).MemberOf <IEnumerable <IProbe> >();
//builder.Register<PerfMonProbe>().As<IProbe>().ExternallyOwned().FactoryScoped().Named(typeof(PerfMonProbe).FullName).MemberOf<IEnumerable<IProbe>>();
//builder.Register<EventLogProbe>().As<IProbe>().ExternallyOwned().FactoryScoped().Named(typeof(EventLogProbe).FullName).MemberOf<IEnumerable<IProbe>>();
}
var container = builder.Build();
Microsoft.Practices.ServiceLocation.IServiceLocator locator = new AutofacServiceLocator(container);
Configuration exeConfiguration = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
ConfigurationSection diagnosticsSection = exeConfiguration.GetSection("system.diagnostics");
ConfigurationElementCollection tracesources = diagnosticsSection.ElementInformation.Properties["sources"].Value as ConfigurationElementCollection;
List <KeyValuePair <string, IProbeMonitor> > probeMonitors = new List <KeyValuePair <string, IProbeMonitor> >();
foreach (TraceListener traceListener in Trace.Listeners)
{
IProbeMonitor probeMonitor = traceListener as IProbeMonitor;
if (probeMonitor != null)
{
Trace.WriteLine("Configures ProbeMonitor: " + traceListener.Name);
probeMonitors.Add(new KeyValuePair <string, IProbeMonitor>(traceListener.Name, probeMonitor));
}
}
ProbeList probes = new ProbeList();
ForwardTraceListener forwardTrace = new ForwardTraceListener();
foreach (ConfigurationElement tracesource in tracesources)
{
string name = tracesource.ElementInformation.Properties["name"].Value.ToString();
Trace.WriteLine("Configures TraceSource: " + name);
if (name.IndexOf('.') != -1)
{
string typeName = name.Substring(name.IndexOf('.') + 1);
IProbe probe = locator.GetInstance <IProbe>("SnakeEyes." + typeName);
if (probe == null)
{
Trace.WriteLine("Unknown Probe Type: " + typeName);
if (eventLog != null)
{
eventLog.WriteEntry("Unknown Probe Type: " + typeName, EventLogEntryType.Error);
}
continue;
}
TraceSource probeSource = probe.ConfigureProbe(name);
probeSource.Listeners.Add(forwardTrace);
foreach (KeyValuePair <string, IProbeMonitor> probeMonitor in probeMonitors)
{
probeMonitor.Value.RegisterProbe(probeSource);
}
probes.AddProbe(DateTime.MinValue, probe);
}
}
if (probes.Count == 0)
{
Trace.WriteLine("SnakeEyes have no probes to poll");
if (eventLog != null)
{
eventLog.WriteEntry("SnakeEyes have no probes to poll", EventLogEntryType.Error);
}
return;
}
Trace.WriteLine("SnakeEyes starts monitoring...");
foreach (KeyValuePair <string, IProbeMonitor> probeMonitor in probeMonitors)
{
probeMonitor.Value.StartMonitor(probeMonitor.Key);
}
using (probes)
{
// Implement an email trace listener:
// - http://www.barebonescoder.com/2010/04/writing-an-email-custom-trace-listener-for-a-wcf-service/
while (serviceRunning)
{
if (probes.GetNextPollTime() >= DateTime.UtcNow)
{
System.Threading.Thread.Sleep(10);
continue;
}
IProbe probe = probes.GetNextPollProbe();
try
{
TimeSpan nextPollTime = probe.ExecuteProbe();
probes.PollExecuted(nextPollTime, probe);
}
catch (Exception ex)
{
System.Diagnostics.Trace.TraceError("Probe Failure: " + ex.Message);
if (ex.InnerException != null)
{
System.Diagnostics.Trace.TraceError("Probe Failure: " + ex.InnerException.Message);
}
System.Diagnostics.Trace.WriteLine("Probe Failure: " + ex.ToString());
probes.PollExecuted(TimeSpan.FromSeconds(5), probe);
if (eventLog != null)
{
eventLog.WriteEntry("Probe Failure: " + ex.Message, EventLogEntryType.Error);
}
}
}
}
}
private void Form1_Load(object sender, EventArgs e)
{
var logView = new LogViewListener(WriteTraceEvent);
Trace.Listeners.Add(logView);
Trace.AutoFlush = true;
Configuration exeConfiguration = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
ConfigurationSection diagnosticsSection = exeConfiguration.GetSection("system.diagnostics");
ConfigurationElementCollection tracesources = diagnosticsSection.ElementInformation.Properties["sources"].Value as ConfigurationElementCollection;
List <KeyValuePair <string, IProbeMonitor> > probeMonitors = new List <KeyValuePair <string, IProbeMonitor> >();
foreach (TraceListener traceListener in Trace.Listeners)
{
IProbeMonitor probeMonitor = traceListener as IProbeMonitor;
if (probeMonitor != null)
{
Trace.WriteLine("Configures ProbeMonitor: " + traceListener.Name);
probeMonitors.Add(new KeyValuePair <string, IProbeMonitor>(traceListener.Name, probeMonitor));
}
}
var builder = new Autofac.Builder.ContainerBuilder();
builder.RegisterCollection <IProbe>().As <IEnumerable <IProbe> >();
string path = System.IO.Path.GetDirectoryName(Application.ExecutablePath);
var dynamicProbes = ProbeTypeLoader.LoadList(typeof(IProbe), path);
dynamicProbes.AddRange(ProbeTypeLoader.LoadList(typeof(IProbe), System.IO.Path.Combine(path, "Probes")));
foreach (var probeType in dynamicProbes)
{
builder.Register(probeType).As <IProbe>().ExternallyOwned().FactoryScoped().Named(probeType.FullName).MemberOf <IEnumerable <IProbe> >();
//builder.Register<PerfMonProbe>().As<IProbe>().ExternallyOwned().FactoryScoped().Named(typeof(PerfMonProbe).FullName).MemberOf<IEnumerable<IProbe>>();
//builder.Register<EventLogProbe>().As<IProbe>().ExternallyOwned().FactoryScoped().Named(typeof(EventLogProbe).FullName).MemberOf<IEnumerable<IProbe>>();
//builder.Register<PingProbe>().As<IProbe>().ExternallyOwned().FactoryScoped().Named(typeof(PingProbe).FullName).MemberOf<IEnumerable<IProbe>>();
}
var container = builder.Build();
Microsoft.Practices.ServiceLocation.IServiceLocator locator = new AutofacServiceLocator(container);
foreach (ConfigurationElement tracesource in tracesources)
{
string name = tracesource.ElementInformation.Properties["name"].Value.ToString();
Trace.WriteLine("Configures TraceSource: " + name);
if (name.IndexOf('.') != -1)
{
string logicalName = name.Substring(0, name.IndexOf('.'));
string typeName = name.Substring(name.IndexOf('.') + 1);
IProbe probe = locator.GetInstance <IProbe>("SnakeEyes." + typeName);
if (probe == null)
{
Trace.WriteLine("Unknown Probe Type: " + typeName);
continue;
}
TraceSource probeSource = probe.ConfigureProbe(name);
probeSource.Listeners.Add(logView);
foreach (KeyValuePair <string, IProbeMonitor> probeMonitor in probeMonitors)
{
probeMonitor.Value.RegisterProbe(probeSource);
}
_probes.AddProbe(DateTime.MinValue, probe);
}
}
if (_probes.Count == 0)
{
Trace.WriteLine("SnakeEyes have no probes to poll");
return;
}
Trace.WriteLine("SnakeEyes starts monitoring...");
foreach (KeyValuePair <string, IProbeMonitor> probeMonitor in probeMonitors)
{
probeMonitor.Value.StartMonitor(probeMonitor.Key);
}
_probeTimer.Enabled = true;
}
