feat: parse the sdi page

[mikawudi]

parse the sdi page inner data

issue:#17

Signed-off-by: xujie mikawudi@qq.com

[codecov-io]

Codecov Report

Merging #18 (12a5072) into master (3cb9bdb) will increase coverage by 0.15%.
The diff coverage is 84.09%.

@@             Coverage Diff              @@
##             master      #18      +/-   ##
============================================
+ Coverage     82.32%   82.48%   +0.15%     
- Complexity     1113     1131      +18     
============================================
  Files            91       93       +2     
  Lines          4148     4236      +88     
  Branches        554      563       +9     
============================================
+ Hits           3415     3494      +79     
- Misses          508      510       +2     
- Partials        225      232       +7     

Impacted Files	Coverage Δ	Complexity Δ
.../com/alibaba/innodb/java/reader/util/ZlibUtil.java	76.47% <76.47%> (ø)	2.00 <2.00> (?)
...ibaba/innodb/java/reader/page/index/SdiRecord.java	81.39% <81.39%> (ø)	11.00 <11.00> (?)
...a/com/alibaba/innodb/java/reader/page/SdiPage.java	93.33% <92.85%> (-6.67%)	4.00 <4.00> (+3.00)	⬇️
...aba/innodb/java/reader/page/index/IndexHeader.java	96.66% <0.00%> (ø)	15.00% <0.00%> (ø%)
...om/alibaba/innodb/java/reader/util/SliceInput.java	72.52% <0.00%> (+5.49%)	29.00% <0.00%> (+2.00%)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 3cb9bdb...12a5072. Read the comment docs.

[mikawudi]

emm~any question in this pr?

[neoremind]

@mikawudi the code looks good, it would be better if you are willing to add a test case for sdi page.

[mikawudi]

oki will add test case later

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}