static void Main(string[] args)
{
try
{
MonitorManager mm = new MonitorManager();
mm.TriggerMointors();
}
catch (Exception ex)
{
Log.WriteErrorLog(ex.ToString());
}
finally
{
ExecutionInfoStore.SerializeStore();
if (Log.ErrorCount > 0)
{
EmailHelper.SendEmail(string.Format("InteropMonitoring project throws {0} exception{1}.",
Log.ErrorCount,
Log.ErrorCount > 1 ? "s" : string.Empty),
string.Format("Log folder: {0}", Log.LogDirectory),
string.Empty,
string.Empty,
Log.LogFilePath);
}
else
{
EmailHelper.SendEmail("InteropMonitoring project works fine.",
string.Empty,
string.Empty,
string.Empty,
Log.LogFilePath);
}
}
}
/// <summary>
/// Execute all Rules and send mail if need alert.
/// </summary>
public void ExecuteRules()
{
List <MonitorRule> rules = LoadRules();
foreach (MonitorRule rule in rules)
{
try
{
if (rule.IsEnable)
{
DateTime lastQueryTime = DateTime.UtcNow;
Log.WriteInfoLog("Rule: {0} start to execute", rule.RuleUniqueIdentity);
var needAlert = ExecuteRule(rule, out string result);
// If the result is empty, the ExecuteRule throws exception. The error log is written in ExecuteRule method.
if (string.IsNullOrWhiteSpace(result))
{
continue;
}
Log.WriteInfoLog("Rule: {0} execute done, result is {1}", rule.RuleUniqueIdentity, result);
if (needAlert)
{
Log.WriteInfoLog("Rule: {0} meet the condition.", rule.RuleUniqueIdentity);
TakeAlertAction(rule, result);
}
else
{
Log.WriteInfoLog("Rule: {0} don't meet the condition and no need alert.", rule.RuleUniqueIdentity);
}
ExecutionInfoStore.SetLastQueryTime(rule.RuleUniqueIdentity, lastQueryTime);
}
else
{
Log.WriteInfoLog("Rule: {0} is disabled.", rule.RuleUniqueIdentity);
}
}
catch (Exception ex)
{
Log.WriteErrorLog("{0} throw exception: {1}", rule.RuleUniqueIdentity, ex.ToString());
}
}
}
/// <summary>
/// Take Alert action: Send Email
/// </summary>
/// <param name="rule">The specified MonitorRule instance.</param>
/// <param name="result">The value returned by ExcuteRule method.</param>
public virtual void TakeAlertAction(MonitorRule rule, string result)
{
string subject = string.Format("Interop Monitoring Alert Fired:{0}", rule.RuleId);
//Write the common method to fire the alert action, and this can also be overwritten by derived classed
if ((DateTime.UtcNow - ExecutionInfoStore.GetLastActionTime(rule.RuleUniqueIdentity)).TotalMinutes > rule.AlertSuppressionWindowInMinutes)
{
Log.WriteInfoLog("Rule: {0} compare with last alert time and need alert, start to send alert mail.", rule.RuleUniqueIdentity);
string ccEmail = ConfigurationManager.AppSettings[ConstStrings.ActionEmailServerity + rule.AlertSeverity.ToString()];
var body = AlertMail.GenerateAlertMail(rule, result);
EmailHelper.SendEmail(subject, body, rule.EmailNotificationAddress, ccEmail);
ExecutionInfoStore.SetLastActionTime(rule.RuleUniqueIdentity, DateTime.UtcNow);
Log.WriteInfoLog("Rule: {0} send rule alert mail done", rule.RuleUniqueIdentity);
}
else
{
Log.WriteInfoLog("Rule: {0} compare with last alert time and no need to alert", rule.RuleUniqueIdentity);
}
}
/// <summary>
/// Replace AtLastQueryTime using the actual last query time in AlertQuery property.
/// </summary>
/// <param name="tempRule">The specified monitor rule.</param>
/// <returns>The MonitorRule with the updated AlertQuery value.</returns>
public static MonitorRule ReplaceAtLastQueryTime(MonitorRule tempRule)
{
tempRule.AlertQuery = tempRule.AlertQuery.Replace("@LastQueryTime", ExecutionInfoStore.GetLastQueryTime(tempRule.RuleUniqueIdentity).ToString());
return(tempRule);
}