>
> This can be written with a map and the collect method as follow:
> import org.apache.jmeter.protocol.http.util.HTTPFileArg
> def files = [
> "FrontsideImage": "uploadFiles/desktop.jpg",
> "BacksideImage": "uploadFiles/desktop.jpg"
> ].collect {
> new HTTPFileArg(
> it.key,
> it.value,
> URLConnection.guessContentTypeFromName(new
> File(filePath[i]).getName()))
> }
> sampler.HTTPFiles = files
> The method collect iterates over all entries in the map. Inside the
> curly braces (a closure), you can access the element by the variable 'it'.
> The result of the last statement in the closure is collected into a
> list, which is stored in files and then silently converted to an array
> and given to the sampler.
Thanks for code explanation as well :) BTW, key/value should be switched as
per given values in map so here is corrected part:
it.value,
it.key,
URLConnection.guessContentTypeFromName(new File(it.value).getName()))
If you want to have it guess from the content as well, you would have to
> use URLConnection#guessContentTypeFromStream (and give it a
> inputstream), or you could use Tika (it is available on the classpath,
> as it is used in the curl-to-JMeter parser). There you could use
> def tika = new Tika()
> def contentType = tika.detect(new File(filename))
I like Tika way. "import org.apache.tika.Tika;" must be added first. Seems
to work fine even if you change the extension to non-original, it detects
the correct MIME-type by analyzing file content. Thanks a lot and Fröhliche
Weihnachten :)
Nikola
On Thu, 24 Dec 2020 at 15:21, Felix Schumacher <
[email protected]> wrote:
>
> Am 23.12.20 um 23:38 schrieb Nikola Aleksic:
> > Thank you again :)
> >
> > I used Groovy way and to detect MIME type automatically
> > URLConnection.guessContentTypeFromName() method is used. I declared two
> > arrays with file paths and parameters so we can put as many files as we
> > want to upload:
> >
> > import org.apache.jmeter.protocol.http.util.HTTPFileArg
> >
> > def filePath = ["uploadFiles/desktop.jpg", "uploadFiles/desktop.jpg"]
> > def fileParameters = ["FrontsideImage", "BacksideImage"]
> > def files = []
> >
> > for (i = 0; i < filePath.size(); i++) {
> > files += new HTTPFileArg (filePath[i], fileParameters[i],
> > URLConnection.guessContentTypeFromName(new File(filePath[i]).getName()))
> > }
> > sampler.HTTPFiles = files
>
> This can be written with a map and the collect method as follow:
>
> import org.apache.jmeter.protocol.http.util.HTTPFileArg
>
> def files = [
> "FrontsideImage": "uploadFiles/desktop.jpg",
> "BacksideImage": "uploadFiles/desktop.jpg"
> ].collect {
> new HTTPFileArg(
> it.key,
> it.value,
> URLConnection.guessContentTypeFromName(new
> File(filePath[i]).getName()))
> }
>
> sampler.HTTPFiles = files
>
> The method collect iterates over all entries in the map. Inside the
> curly braces (a closure), you can access the element by the variable 'it'.
>
> The result of the last statement in the closure is collected into a
> list, which is stored in files and then silently converted to an array
> and given to the sampler.
>
> >
> > I was curious to see how URLConnection.guessContentTypeFromName() method
> > actually works. I renamed .jpg extension to .png and image/png is
> generated
> > so I guess that it scans extension rather than file hex signature.
>
> If you want to have it guess from the content as well, you would have to
> use URLConnection#guessContentTypeFromStream (and give it a
> inputstream), or you could use Tika (it is available on the classpath,
> as it is used in the curl-to-JMeter parser). There you could use
>
> def tika = new Tika()
>
> def contentType = tika.detect(new File(filename))
>
> Felix
>
> >
> > Regards,
> > Nikola
> >
> > On Wed, 23 Dec 2020 at 19:16, Felix Schumacher <
> > [email protected]> wrote:
> >
> >> Am 23.12.20 um 18:36 schrieb Nikola Aleksic:
> >>> Thanks, for the fast response.
> >>>
> >>> It worked great! I like how the code looks, very simple.
> >>> May I ask how to do the opposite, to generate file(s) to upload in the
> >> same
> >>> simple way using Groovy?
> >> To generate file parameters, you have to fill the array. Again it is
> >> probably easier to do so with a list, so a example would be:
> >>
> >> import org.apache.jmeter.protocol.http.util.HTTPFileArg
> >>
> >> def files = new ArrayList();
> >> files.add(new
> >> HTTPFileArg('../xdocs/images/screenshots/simpledatawriter.png', 'pic',
> >> 'image/png'));
> >>
> >> sampler.HTTPFiles = files.toArray()
> >>
> >> Again, I think the import stuff is the working with the list and here
> >> the construction of a HTTPFileArg with the three parameters which point
> >> to the file, the name of the http parameter and the content type (which
> >> you have to provide yourself).
> >>
> >> If you want to do it in a more Groovy way, you can use the list literal
> >> [] instead of new ArrayList() and the +-operator instead of add and
> >> count on Groovy to do the right thing (convert a list to an array).
> >> Which would give you
> >>
> >> import org.apache.jmeter.protocol.http.util.HTTPFileArg
> >>
> >> def files = []
> >> files += new
> >> HTTPFileArg('../xdocs/images/screenshots/simpledatawriter.png', 'pic',
> >> 'image/png')
> >>
> >> sampler.HTTPFiles = files
> >>
> >> Felix
> >>
> >>> On Wed, 23 Dec 2020 at 16:28, Felix Schumacher <
> >>> [email protected]> wrote:
> >>>
> >>>> Am 23.12.20 um 16:05 schrieb Nikola Aleksic:
> >>>>> Hello,
> >>>>>
> >>>>> I was trying to list all parameters in HTTP Sampler including ones in
> >>>>> File upload tab using the following code and remove the desired one
> in
> >>>>> File upload tab, but File upload tab parameters FrontsideImage and
> >>>>> BacksideImage are not listed:
> >>>>>
> >>>>> import org.apache.jmeter.config.Arguments;
> >>>>>
> >>>>> Arguments args = sampler.getArguments();
> >>>>> Iterator it = args.iterator();
> >>>>>
> >>>>> while (it.hasNext()) {
> >>>>> def argument = it.next();
> >>>>> if (argument.getStringValue().contains('somevalue')) {
> >>>>> args.removeArgument(argument.getName());
> >>>>> }
> >>>>> log.warn(argument.getName())
> >>>>> }
> >>>>>
> >>>>> Code source: https://stackoverflow.com/a/40918642
> >>>>>
> >>>>> Can someone provide a corresponding method to list Files upload
> >>>>> parameters as well and remove desired one as per its value? Check jmx
> >>>>> example in the attachment. Set log level to WARN, Run test and check
> >>>>> the logs.
> >>>> The files are hidden away under sampler.getHTTPFiles() it returns an
> >>>> array, so probably want to change it to a modern collection first.
> Then
> >>>> remove the empty elements, or whatever you want to do. Last you
> convert
> >>>> it back to an array and store it with sampler.setHTTPFiles().
> >>>>
> >>>>
> >>>> In a JSR-223 PreProcessor with Groovy that would be
> >>>>
> >>>> def files = new ArrayList(Arrays.asList(sampler.HTTPFiles))
> >>>> log.info("files: " + files)
> >>>>
> >>>> files.removeIf(f -> f.path == "something" && f.paramName == "nothing"
> ||
> >>>> f.mimeType == "text/json")
> >>>>
> >>>> log.info("files: " + files)
> >>>>
> >>>> sampler.HTTPFiles = files.toArray()
> >>>>
> >>>>
> >>>> The log.info(...) is added to show, what has been done by the
> >>>> pre-processor.
> >>>>
> >>>> The stuff after 'f -> ' is the interesting part, as it is the
> predicate,
> >>>> which decides, which files should be removed from the collection.
> >>>>
> >>>> Felix
> >>>>
> >>>>> Regards,
> >>>>> Nikola
> >>>>>
> >>>>> ---------------------------------------------------------------------
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> >>>>> For additional commands, e-mail: [email protected]
> >> ---------------------------------------------------------------------
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> >> For additional commands, e-mail: [email protected]
> >>
> >>
>
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