Metronome to trigger {Name}Monitor.Execute() based on config

[mrdavidlaing]

abstract class Monitor { prop Name, method Execute() }
DefaultPageMonitor: Monitor -> Execute() calls IIS default url
AllServiceMonitor: Monitor -> Execute() calls all the service urls

Metronome ->

1. loads up all the Monitors into an array,
2. calls the Execute of each at the frequency defined in the config file

Config:

<Monitors>
    <Monitor Class="DefaultPageMonitor" ExecutePeriodInSec="20" />
    <Monitor Class="AllServiceMonitor" ExecutePeriodInSec="60">
         <AllServiceMonitorConfig  UserName="XX627345" Password="sdfsdf" /> 
    </Monitor>
</Monitors>

AllServiceMonitorConfig node is an example of a serialised config DTO for the specific Monitor. Different monitors could have different config nodes, or none at all

[fandrei]

Is it really necessary to have separate user name/password for every monitor? This makes configuration process more complicated.

[mrdavidlaing]

Yes, I'm afraid so.

And in some cases we might want to run the same monitor twice on the same machine, but using different urls or username/passwords

On 23 May 2012 09:03, fandrei < reply@reply.github.com

wrote:

Is it really necessary to have separate user name/password for every monitor? This makes configuration process more complicated.

---

Reply to this email directly or view it on GitHub: https://github.com/fandrei/AppMetrics/issues/71#issuecomment-5867244

David Laing Open source @ City Index - github.com/cityindex http://davidlaing.com Twitter: @davidlaing

[fandrei]

ok, config looks like this:

<LatencyMonitor xsi:type="DefaultPageMonitor">
  <PeriodSeconds>10</PeriodSeconds>
</LatencyMonitor>
<LatencyMonitor xsi:type="AllServiceMonitor">
  <PeriodSeconds>20</PeriodSeconds>
  <UserName>XX870869</UserName>
  <Password>some password</Password>
  <ServerUrl>https://ciapi.cityindex.com/TradingApi</ServerUrl>
  <StreamingServerUrl>https://push.cityindex.com</StreamingServerUrl>
  <AllowTrading>false</AllowTrading>
</LatencyMonitor>

Any ideas how to deal with passwords? I don't like idea of storing passwords in plain text. Currently password is encrypted and can be set via config tool, but having multiple plugins makes this much more complicated.

[mrdavidlaing]

Best thing I can think of is to let the OS handle security on the file - i.e, prevent reading by any user except Admin & service user

[fandrei]

I've tried a different way: passwords are stored encrypted, but they can be set and viewed using the config tool; it's also possible to set monitors config using command line:

CiapiLatencyCollectorConfig.exe "-monitors:<Monitors xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"><LatencyMonitor xsi:type=\"DefaultPageMonitor\" />"

or maybe it's better to specify file name instead?

[fandrei]

ok, let's move discussion on config system here https://github.com/fandrei/AppMetrics/issues/79