/// <summary>
/// Handles serialization of exceptions that
/// might be thrown by the provided lambda
/// </summary>
private static JsonObject HandleExceptionSerialization(
SpecialValues specialValues,
Func <JsonObject> action
)
{
try
{
return(action.Invoke());
}
catch (Exception e)
{
if (!SerializeExceptions)
{
throw;
}
return(new JsonObject()
.Add("result", "exception")
.Add("exception", Serializer.ToJson(e))
.Add("special", specialValues.ToJsonObject()));
}
}
/// <summary>
/// Main entrypoint to the framework execution
/// Given executionParameters it starts some action which results.
/// in a returned value or an exception.
///
/// Input and output are serialized as JSON strings.
/// </summary>
public static string Start(
string executionParametersAsJson,
Type[] gameAssemblyTypes
)
{
if (someExecutionIsRunning)
{
throw new InvalidOperationException(
"You cannot start the framework from within the framework."
);
}
someExecutionIsRunning = true;
var executionStopwatch = Stopwatch.StartNew();
try
{
PrintGreeting();
var executionParameters = ExecutionParameters
.Parse(executionParametersAsJson);
var specialValues = new SpecialValues();
JsonObject result = HandleExceptionSerialization(
specialValues,
() => {
// NOTE: this place is where a test/emulation
// is started. Simply boot the application and
// then directly call proper kernel (method handler).
var env = EnvStore.Parse(executionParameters.EnvSource);
JsonValue methodResult;
using (var app = Bootstrap.Boot(
gameAssemblyTypes,
env,
specialValues
))
{
Facade.SetApplication(app);
methodResult = ExecuteProperMethod(
executionParameters,
app
);
Facade.SetApplication(null);
}
return(new JsonObject()
.Add("result", "ok")
.Add("returned", methodResult)
.Add("special", specialValues.ToJsonObject()));
}
);
executionStopwatch.Stop();
result["special"].AsJsonObject["executionDuration"]
= executionStopwatch.ElapsedMilliseconds / 1000.0;
return(result.ToString());
}
finally
{
someExecutionIsRunning = false;
}
}
