Add use compress parallel streaming_load demo

[wubx]

No description provided.

[PsiACE]

We may need to load some data in a specific compression format, so a new request header needs to be set up to specify the compression format, such as gzip.

put.setHeader("compression", "gzip");

If you are considering using your own generated data for validation, something like cn.hutool.core.util.ZipUtil can help you compress the generated data. In this example, you can replace this line of code to get a tsv compressed with gzip.

// old, without gzip
// loader.sendData(client, loadUrl, loadData.getBytes());
// new, with gzip
loader.sendData(client, loadUrl, ZipUtil.gzip(loadData.getBytes()));

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To import cn.hutool, you need to edit pom.xml to add this dependency.

<dependency>
  <groupId>cn.hutool</groupId>
  <artifactId>hutool-all</artifactId>
  <version>5.8.6</version>
</dependency>

And, of course, import it in java.

import cn.hutool.core.util.ZipUtil;