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Posted to dev@kafka.apache.org by vinay deshpande <vi...@gmail.com> on 2022/11/11 05:30:50 UTC
Starting out with Kafka
Hi All,
I have a basic question: I tried importing kafka source code into intellij
but there are bunch of imports that IDE cannot find like these:
import kafka.api.ApiVersion;
import kafka.log.CleanerConfig;
import kafka.log.LogConfig;
import kafka.log.LogManager;
TIA.
Thanks,
Vinay
Re: Starting out with Kafka
Posted by John Roesler <vv...@apache.org>.
Glad to hear it!
-John
On Fri, Nov 11, 2022, at 14:57, vinay deshpande wrote:
> Hi John,
> Thanks a ton. Things are looking good now.
> Even though Scala was present on my machine the ./gradlew compile was
> unable to find the Scala classes, on installing Scala plugin on IDE and
> then recompiling from terminal the projecting is building fine now.
>
> Thanks John and Ziming for helping out.
>
> Thanks,
> Vinay
>
> On Fri, Nov 11, 2022 at 11:01 AM John Roesler <vv...@apache.org> wrote:
>
>> Hmm,
>>
>> I assume you did, but just to be sure, did you compile from the terminal
>> before trying to build in idea? There are some generated Java classes that
>> might be getting missed.
>>
>> The compile step is probably something like “compileJava compileScala
>> compileTestJava compileTestScala” from the top of my head.
>>
>> I hope this helps!
>> -John
>>
>> Ps: I don’t think image attachments work with the mailing list. Maybe you
>> can use a gist?
>>
>> On Fri, Nov 11, 2022, at 12:51, vinay deshpande wrote:
>> > Hi,
>> > I tried both the suggestions given in the previous mail threads, all
>> > the unit tests passed except for testMuteOnOOM(). But the issue with
>> > IDE persists.
>> > I even tried invalidating the cache a few times, deleted the .bin/ and
>> > .idea/ folder and built again but there are quite few imports that
>> > aren't being resolved (especially kafka.server, kafka.zk and kafka.log).
>> > I'm attaching the result of the unit test here.
>> > Screen Shot 2022-11-11 at 10.45.48 AM.png
>> > TIA.
>> >
>> > On Fri, Nov 11, 2022 at 5:04 AM John Roesler <vv...@apache.org>
>> wrote:
>> >> Hello Vinay,
>> >>
>> >> One thing I’ve noticed recently is that I have to click the “build”
>> button in intellij before I can use the “run” or “debug” buttons. I’m not
>> sure why.
>> >>
>> >> Welcome to the community!
>> >> -John
>> >>
>> >> On Fri, Nov 11, 2022, at 02:47, deng ziming wrote:
>> >> > Hello, Vinay
>> >> > Kafka uses gradlew as build tool and java/scala as program language,
>> >> > You can firstly use `./gradlew unitTest` to build it using terminal,
>> >> > and reload it in gradle window, sometimes I also change default build
>> >> > tool from IDEA to gradle in Preference/Build/build tools/Gradle:
>> >> >
>> >> > PastedGraphic-1.tiff
>> >> >
>> >> > --
>> >> > Ziming
>> >> >
>> >> >> On Nov 11, 2022, at 13:30, vinay deshpande <vi...@gmail.com>
>> wrote:
>> >> >>
>> >> >> Hi All,
>> >> >> I have a basic question: I tried importing kafka source code into
>> intellij
>> >> >> but there are bunch of imports that IDE cannot find like these:
>> >> >>
>> >> >> import kafka.api.ApiVersion;
>> >> >> import kafka.log.CleanerConfig;
>> >> >> import kafka.log.LogConfig;
>> >> >> import kafka.log.LogManager;
>> >> >>
>> >> >>
>> >> >> TIA.
>> >> >>
>> >> >> Thanks,
>> >> >> Vinay
>>
Re: Starting out with Kafka
Posted by vinay deshpande <vi...@gmail.com>.
Hi John,
Thanks a ton. Things are looking good now.
Even though Scala was present on my machine the ./gradlew compile was
unable to find the Scala classes, on installing Scala plugin on IDE and
then recompiling from terminal the projecting is building fine now.
Thanks John and Ziming for helping out.
Thanks,
Vinay
On Fri, Nov 11, 2022 at 11:01 AM John Roesler <vv...@apache.org> wrote:
> Hmm,
>
> I assume you did, but just to be sure, did you compile from the terminal
> before trying to build in idea? There are some generated Java classes that
> might be getting missed.
>
> The compile step is probably something like “compileJava compileScala
> compileTestJava compileTestScala” from the top of my head.
>
> I hope this helps!
> -John
>
> Ps: I don’t think image attachments work with the mailing list. Maybe you
> can use a gist?
>
> On Fri, Nov 11, 2022, at 12:51, vinay deshpande wrote:
> > Hi,
> > I tried both the suggestions given in the previous mail threads, all
> > the unit tests passed except for testMuteOnOOM(). But the issue with
> > IDE persists.
> > I even tried invalidating the cache a few times, deleted the .bin/ and
> > .idea/ folder and built again but there are quite few imports that
> > aren't being resolved (especially kafka.server, kafka.zk and kafka.log).
> > I'm attaching the result of the unit test here.
> > Screen Shot 2022-11-11 at 10.45.48 AM.png
> > TIA.
> >
> > On Fri, Nov 11, 2022 at 5:04 AM John Roesler <vv...@apache.org>
> wrote:
> >> Hello Vinay,
> >>
> >> One thing I’ve noticed recently is that I have to click the “build”
> button in intellij before I can use the “run” or “debug” buttons. I’m not
> sure why.
> >>
> >> Welcome to the community!
> >> -John
> >>
> >> On Fri, Nov 11, 2022, at 02:47, deng ziming wrote:
> >> > Hello, Vinay
> >> > Kafka uses gradlew as build tool and java/scala as program language,
> >> > You can firstly use `./gradlew unitTest` to build it using terminal,
> >> > and reload it in gradle window, sometimes I also change default build
> >> > tool from IDEA to gradle in Preference/Build/build tools/Gradle:
> >> >
> >> > PastedGraphic-1.tiff
> >> >
> >> > --
> >> > Ziming
> >> >
> >> >> On Nov 11, 2022, at 13:30, vinay deshpande <vi...@gmail.com>
> wrote:
> >> >>
> >> >> Hi All,
> >> >> I have a basic question: I tried importing kafka source code into
> intellij
> >> >> but there are bunch of imports that IDE cannot find like these:
> >> >>
> >> >> import kafka.api.ApiVersion;
> >> >> import kafka.log.CleanerConfig;
> >> >> import kafka.log.LogConfig;
> >> >> import kafka.log.LogManager;
> >> >>
> >> >>
> >> >> TIA.
> >> >>
> >> >> Thanks,
> >> >> Vinay
>
Re: Starting out with Kafka
Posted by John Roesler <vv...@apache.org>.
Hmm,
I assume you did, but just to be sure, did you compile from the terminal before trying to build in idea? There are some generated Java classes that might be getting missed.
The compile step is probably something like “compileJava compileScala compileTestJava compileTestScala” from the top of my head.
I hope this helps!
-John
Ps: I don’t think image attachments work with the mailing list. Maybe you can use a gist?
On Fri, Nov 11, 2022, at 12:51, vinay deshpande wrote:
> Hi,
> I tried both the suggestions given in the previous mail threads, all
> the unit tests passed except for testMuteOnOOM(). But the issue with
> IDE persists.
> I even tried invalidating the cache a few times, deleted the .bin/ and
> .idea/ folder and built again but there are quite few imports that
> aren't being resolved (especially kafka.server, kafka.zk and kafka.log).
> I'm attaching the result of the unit test here.
> Screen Shot 2022-11-11 at 10.45.48 AM.png
> TIA.
>
> On Fri, Nov 11, 2022 at 5:04 AM John Roesler <vv...@apache.org> wrote:
>> Hello Vinay,
>>
>> One thing I’ve noticed recently is that I have to click the “build” button in intellij before I can use the “run” or “debug” buttons. I’m not sure why.
>>
>> Welcome to the community!
>> -John
>>
>> On Fri, Nov 11, 2022, at 02:47, deng ziming wrote:
>> > Hello, Vinay
>> > Kafka uses gradlew as build tool and java/scala as program language,
>> > You can firstly use `./gradlew unitTest` to build it using terminal,
>> > and reload it in gradle window, sometimes I also change default build
>> > tool from IDEA to gradle in Preference/Build/build tools/Gradle:
>> >
>> > PastedGraphic-1.tiff
>> >
>> > --
>> > Ziming
>> >
>> >> On Nov 11, 2022, at 13:30, vinay deshpande <vi...@gmail.com> wrote:
>> >>
>> >> Hi All,
>> >> I have a basic question: I tried importing kafka source code into intellij
>> >> but there are bunch of imports that IDE cannot find like these:
>> >>
>> >> import kafka.api.ApiVersion;
>> >> import kafka.log.CleanerConfig;
>> >> import kafka.log.LogConfig;
>> >> import kafka.log.LogManager;
>> >>
>> >>
>> >> TIA.
>> >>
>> >> Thanks,
>> >> Vinay
Re: Starting out with Kafka
Posted by vinay deshpande <vi...@gmail.com>.
Hi,
I tried both the suggestions given in the previous mail threads, all the
unit tests passed except for testMuteOnOOM(). But the issue with IDE
persists.
I even tried invalidating the cache a few times, deleted the .bin/ and
.idea/ folder and built again but there are quite few imports that aren't
being resolved (especially kafka.server, kafka.zk and kafka.log).
I'm attaching the result of the unit test here.
[image: Screen Shot 2022-11-11 at 10.45.48 AM.png]
TIA.
On Fri, Nov 11, 2022 at 5:04 AM John Roesler <vv...@apache.org> wrote:
> Hello Vinay,
>
> One thing I’ve noticed recently is that I have to click the “build” button
> in intellij before I can use the “run” or “debug” buttons. I’m not sure
> why.
>
> Welcome to the community!
> -John
>
> On Fri, Nov 11, 2022, at 02:47, deng ziming wrote:
> > Hello, Vinay
> > Kafka uses gradlew as build tool and java/scala as program language,
> > You can firstly use `./gradlew unitTest` to build it using terminal,
> > and reload it in gradle window, sometimes I also change default build
> > tool from IDEA to gradle in Preference/Build/build tools/Gradle:
> >
> > PastedGraphic-1.tiff
> >
> > --
> > Ziming
> >
> >> On Nov 11, 2022, at 13:30, vinay deshpande <vi...@gmail.com>
> wrote:
> >>
> >> Hi All,
> >> I have a basic question: I tried importing kafka source code into
> intellij
> >> but there are bunch of imports that IDE cannot find like these:
> >>
> >> import kafka.api.ApiVersion;
> >> import kafka.log.CleanerConfig;
> >> import kafka.log.LogConfig;
> >> import kafka.log.LogManager;
> >>
> >>
> >> TIA.
> >>
> >> Thanks,
> >> Vinay
>
Re: Starting out with Kafka
Posted by John Roesler <vv...@apache.org>.
Hello Vinay,
One thing I’ve noticed recently is that I have to click the “build” button in intellij before I can use the “run” or “debug” buttons. I’m not sure why.
Welcome to the community!
-John
On Fri, Nov 11, 2022, at 02:47, deng ziming wrote:
> Hello, Vinay
> Kafka uses gradlew as build tool and java/scala as program language,
> You can firstly use `./gradlew unitTest` to build it using terminal,
> and reload it in gradle window, sometimes I also change default build
> tool from IDEA to gradle in Preference/Build/build tools/Gradle:
>
> PastedGraphic-1.tiff
>
> --
> Ziming
>
>> On Nov 11, 2022, at 13:30, vinay deshpande <vi...@gmail.com> wrote:
>>
>> Hi All,
>> I have a basic question: I tried importing kafka source code into intellij
>> but there are bunch of imports that IDE cannot find like these:
>>
>> import kafka.api.ApiVersion;
>> import kafka.log.CleanerConfig;
>> import kafka.log.LogConfig;
>> import kafka.log.LogManager;
>>
>>
>> TIA.
>>
>> Thanks,
>> Vinay
Re: Starting out with Kafka
Posted by deng ziming <de...@gmail.com>.
Hello, Vinay
Kafka uses gradlew as build tool and java/scala as program language,
You can firstly use `./gradlew unitTest` to build it using terminal, and reload it in gradle window, sometimes I also change default build tool from IDEA to gradle in Preference/Build/build tools/Gradle:

--
Ziming
> On Nov 11, 2022, at 13:30, vinay deshpande <vi...@gmail.com> wrote:
>
> Hi All,
> I have a basic question: I tried importing kafka source code into intellij
> but there are bunch of imports that IDE cannot find like these:
>
> import kafka.api.ApiVersion;
> import kafka.log.CleanerConfig;
> import kafka.log.LogConfig;
> import kafka.log.LogManager;
>
>
> TIA.
>
> Thanks,
> Vinay