public override void Run(EPServiceProvider epService)
{
MyExceptionHandler.Contexts.Clear();
epService.EPAdministrator.Configuration.AddEventType <SupportBean>();
// test exception by graph source
EPStatement stmtGraph = epService.EPAdministrator.CreateEPL("create dataflow MyDataFlow DefaultSupportSourceOp -> outstream<SupportBean> {}");
var op = new DefaultSupportSourceOp(new object[] { new EPRuntimeException("My-Exception-Is-Here") });
var options = new EPDataFlowInstantiationOptions();
options.OperatorProvider(new DefaultSupportGraphOpProvider(op));
var handler = new MyExceptionHandler();
options.ExceptionHandler(handler);
EPDataFlowInstance df = epService.EPRuntime.DataFlowRuntime.Instantiate("MyDataFlow", options);
df.Start();
Thread.Sleep(100);
Assert.AreEqual(EPDataFlowState.COMPLETE, df.State);
Assert.AreEqual(1, MyExceptionHandler.Contexts.Count);
EPDataFlowExceptionContext context = MyExceptionHandler.Contexts[0];
Assert.AreEqual("MyDataFlow", context.DataFlowName);
Assert.AreEqual("DefaultSupportSourceOp", context.OperatorName);
Assert.AreEqual(0, context.OperatorNumber);
Assert.AreEqual("DefaultSupportSourceOp#0() -> outstream<SupportBean>", context.OperatorPrettyPrint);
Assert.AreEqual("Support-graph-source generated exception: My-Exception-Is-Here", context.Exception.Message);
df.Cancel();
stmtGraph.Dispose();
MyExceptionHandler.Contexts.Clear();
// test exception by operator
epService.EPAdministrator.Configuration.AddImport(typeof(MyExceptionOp));
epService.EPAdministrator.CreateEPL("create dataflow MyDataFlow DefaultSupportSourceOp -> outstream<SupportBean> {}" +
"MyExceptionOp(outstream) {}");
var opTwo = new DefaultSupportSourceOp(new object[] { new SupportBean("E1", 1) });
var optionsTwo = new EPDataFlowInstantiationOptions();
optionsTwo.OperatorProvider(new DefaultSupportGraphOpProvider(opTwo));
var handlerTwo = new MyExceptionHandler();
optionsTwo.ExceptionHandler(handlerTwo);
EPDataFlowInstance dfTwo = epService.EPRuntime.DataFlowRuntime.Instantiate("MyDataFlow", optionsTwo);
dfTwo.Start();
Thread.Sleep(100);
Assert.AreEqual(1, MyExceptionHandler.Contexts.Count);
EPDataFlowExceptionContext contextTwo = MyExceptionHandler.Contexts[0];
Assert.AreEqual("MyDataFlow", contextTwo.DataFlowName);
Assert.AreEqual("MyExceptionOp", contextTwo.OperatorName);
Assert.AreEqual(1, contextTwo.OperatorNumber);
Assert.AreEqual("MyExceptionOp#1(outstream)", contextTwo.OperatorPrettyPrint);
Assert.AreEqual("Operator-thrown-exception", contextTwo.Exception.Message);
}
public void Handle(EPDataFlowExceptionContext context)
{
_contexts.Add(context);
}
