-----Original Message----- From: sebb [mailto:[email protected]] Sent: Friday, June 26, 2009 8:45 AM To: JMeter Users List Subject: Re: ForEach and BeanShell question
On 26/06/2009, Stromas, Aaron (NIH/OD) [C] <[email protected]> wrote: > > > -----Original Message----- > From: sebb [mailto:[email protected]] > Sent: Thursday, June 25, 2009 2:08 PM > To: JMeter Users List > Subject: Re: ForEach and BeanShell question > > On 25/06/2009, Stromas, Aaron (NIH/OD) [C] <[email protected]> wrote: > > Greetings! > > > > I have a test plan that uses a RE Extractor to convert the values of the > HTML select element to the input values of the ForEach controller. These > values are of the form X,M,N~Y,A,B~...~Z,C,D, and I can see from the log that > they are properly generated. The reference name for these values is tuple. > The ForEach controller Input variable prefix is tuple, and the Output > variable name is threetuple. > > > > I am emulating Javascript which breaks up the value of selected option > and submits an HTTP request with the values of each of thre-tuple as > parameter. To that end, I have another ForEach controller as a child of the > first one with the BeanShell preprocessor: > > > > String[] tuples = vars.get("threetuple_1").split("~"); > > > > List list = new ArrayList(); > > > > for (int i = 0; i < tuples.length; i++) { > > list.add(tuples[i].split(",")); > > } > > > > vars.put("params", list); > > > > The inner ForEach controller has a HTTP Request sampler with a BeanShell > preprocessor whose job is to break up the three-tuple into individual > parameters. > > > > In short, no HTTP sampler ever executes, and the log shows that the inner > ForEach controller receives null input. > > > > I can see in the log, what I presume to be invocation of the outer > ForEach: > > > > ... jmeter.control.ForEach resultstring isDone=SAR,713,0~RCC,988,343... > > > > > > and the inner ForEach: > > > > ... jmeter.control.ForeachController: No entries found - null first > entry: params_1 > > > > The questions are: is there any way of knowing why the BeanShell > preprocessor did not execute? > > > > Once that problem resolved, I need to tackle the business of the ForEach > output variable which gets loop index appended to it, so how can the > BeanShell "know" which variable to use? > > > > Any suggestions? > > The ForEach Controller needs multiple variables, not a list: > > > http://jakarta.apache.org/jmeter/usermanual/component_reference.html#ForEach_Controller > > > > It still isn't working for me. This is the schematic of my test: > > ForEach controller > Input var prefix: tuple What sets "tuple_1" etc? These are set by the Regular Expression extractor prior the ForEach controller (Reference Name: tuple) > Output var name: threetuple > | > | > ForEach controller > Input var prefix: params These need to be set BEFORE the controller is executed. That is what the BeanShell PREprocessor is for, is it not? > Output var prefix: reqparams > | > | > BeanShell preprocessor > | String packed = vars.get("threetuple") > | String[] tuples =packed.split("~"); > | for (int i = i; i <= tuples.length; i++) { I presume that is int i = 1; ... Yes, of course, I was free typing, not cut'n pasting > | vars.put("params" + "_" + i, tuples[i-1]); > | > | This is all too late. > HTTP request > | > BeanShell preprocessor Did you mean post-processor? No, the idea is to unpack the string into parameters for the HTTP request. > String packed = vars.get("params"); > String[] names = new String[]{"type", "p1", "p2", "p3"}; > for (int i = 0; i < names.length; i++) { > vars.put(names[i], p[i]); > } > > > I have also tried vars.get("threetuple_1") in the first BeanShell. No matter > what I try, in the log I see "jmeter.control.ForeachController: No entries > found - null first entry: params_1". That's because it is null. > Sorry for badgering, but I must be missing something basic. TIA, Use the Debug Sampler to show what variables are set at that point in the test plan. That is golden, thank you. I tried to use it before, but probably at the wrong place, so it didn't show me much. > -a > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
