Owen-CH-Leung commented on PR #13909:
URL: https://github.com/apache/kafka/pull/13909#issuecomment-1791810020
@mjsax Thanks. It really clarifies a lot!
I've modified the code to allow overriding default value for `state.dir` by
setting the system property `kafka.streams.state.dir`. So in `build.gradle`, if
we set the following:
```shell
task genStreamsConfigDocs(type: JavaExec) {
classpath = sourceSets.main.runtimeClasspath
mainClass = 'org.apache.kafka.streams.StreamsConfig'
if( !generatedDocsDir.exists() ) { generatedDocsDir.mkdirs() }
standardOutput = new File(generatedDocsDir,
"streams_config.html").newOutputStream()
systemProperty 'kafka.streams.state.dir', '/some/random/path'
}
```
then the output html page will have the default value shown as
`/some/random/path`. If we set it as empty string, the output will be an empty
string also. If not set, the default logic
`System.getProperty("java.io.tmpdir") + File.separator + "kafka-streams"` will
be applied
Let me know what you think. Thanks!
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