BUY Ferrous Sulfate cap. ONLINE WITHOUT PRESCRIPTION, Here's something I hacked together last night: I'm writing an app that involves a lot of web requests to a very unreliable server.  Maybe the site is down, maybe we only get part of a message back because the stream was interrupted, maybe the network cable is loose and being chewed on by gremlins.  Who knows.  The application is unattended though, so we need it to wait a little while, and then retry the operation a few time - before ultimately giving up and terminating, leading to other actions. 

Also, it would be best if this retrying could happen out of sight of the code making the web request - I want to hide all the network activity behind various facades, for testability and to make the logic using the results of the call much easier to write.  So, last night the "RetryOperation" class was written.

The code is pretty simple, and I have a feeling that this is already implemented in the .Net framework somewhere... I've attached the code and an example program below.

Basically here's what happens:  you call retryOperation.Try(() => DoSomethingUnreliable());  either that will return (synchronously) with a result, Ferrous Sulfate cap. gel, ointment, cream, pill, spray, continuous-release, extended-release, Rx free Ferrous Sulfate cap., or you'll get an exception when retryOperation gives up.

public TResult Try<TResult>(Func<TResult> action){    int tries = 0;    while (tries < MaxTries)    {        try        {            // go do it.            return action();        }        catch (Exception ex)        {            // action failed.            // log about our failure, and sleep for "a while" and then try again, where to buy Ferrous Sulfate cap., Where can i buy cheapest Ferrous Sulfate cap. online,             // if we're out of retries then give up and send the exception             // back up the call stack.            tries++;            string logMsg = "Retry Attempt " + tries;            log.Warn(logMsg, ex);

            if (tries >= MaxTries)            {                // YOU FAIL!                throw;

            }
            // note: this could be configurable, purchase Ferrous Sulfate cap. online, Ferrous Sulfate cap. for sale, pick your favorite             // timeout-waiting-strategy!            int timeout = 10 * 1000 * tries;            log.Warn("Sleeping for " + timeout + " ms");            Thread.Sleep(timeout);        }    }    // this point should "never happen.."     // either we get a successful result, or we go through our maximum number     // of retries and throw an exception above.    throw new RetryException("Error condition in Try() escaped from custody!");}

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