HBASE-29531 Migrate RegionServer Status Jamon page back to JSP

[PDavid]

ℹ️ Sorry, this PR is also quite large and I did not found a way to make it smaller. Maybe it is better to check the changes commit-by-commit.

This is the 2/3 step of the Jamon to JSP migration: the Region Server Status page.

Did the migration the same way as for the Master Status page: #6875

Migrated the Jamon code to JSP as close as possible. Extracted the duplicated formatZKString method to new java class: ZKUtil and added unit tests.

Changed the Region Server Status page back to /regionserver.jsp. Made sure that /rs-status redirects to /regionserver.jsp.

Extracted the BlockCache inline CSS styles to hbase.css file. Also extracted the large BlockCache Hit Ratio periods paging JavaScript code to separate .js file.

Introduced a src/main/resources/hbase-webapps/common directory where we can place common JSP files which are used by both Master and RegionServer JSP pages. This required to adjust the JSP compiler Maven Antrun plugin a bit.

Extracted the inline tablesorter initialization JavaScript code to separate file.

[PDavid]

I tested this locally in standalone mode after building with Maven (mvn clean install -DskipTests && bin/start-hbase.sh). I created some tables, adding data with the ltt tool (bin/hbase ltt -num_keys 10000 -write 100:100 -num_tables 10 -multiput)

Also configured BlockCache accordiong to the example configuration https://hbase.apache.org/book.html#bc.example

conf/hbase-env.sh:
...
export HBASE_HEAPSIZE=5G
...

conf/hbase-site.xml:
...
  <property>
    <name>hbase.bucketcache.ioengine</name>
    <value>offheap</value>
  </property>
  <property>
    <name>hfile.block.cache.size</name>
    <value>0.2</value>
  </property>
  <property>
    <name>hbase.bucketcache.size</name>
    <value>4196</value>
  </property>
...

and checked the RS status page if the Block Cache details and the Hit ration periods are properly displayed:

[Apache9]

Let's get this in first.

[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 29s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 1s		codespell was not available.
+0 🆗	detsecrets	0m 1s		detect-secrets was not available.
+0 🆗	jshint	0m 1s		jshint was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
+1 💚	hbaseanti	0m 0s		Patch does not have any anti-patterns.
			_ master Compile Tests _
+0 🆗	mvndep	0m 34s		Maven dependency ordering for branch
+1 💚	mvninstall	3m 29s		master passed
+1 💚	compile	3m 42s		master passed
+1 💚	checkstyle	0m 45s		master passed
+1 💚	spotbugs	1m 38s		master passed
+1 💚	spotless	0m 45s		branch has no errors when running spotless:check.
-0 ⚠️	patch	0m 58s		Used diff version of patch file. Binary files and potentially other changes not applied. Please rebase and squash commits if necessary.
			_ Patch Compile Tests _
+0 🆗	mvndep	0m 12s		Maven dependency ordering for patch
+1 💚	mvninstall	3m 11s		the patch passed
+1 💚	compile	3m 51s		the patch passed
+1 💚	javac	3m 51s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	0m 37s		hbase-server: The patch generated 0 new + 0 unchanged - 4 fixed = 0 total (was 4)
+1 💚	checkstyle	0m 8s		The patch passed checkstyle in hbase-shell
-0 ⚠️	rubocop	0m 10s	/results-rubocop.txt	The patch generated 1 new + 84 unchanged - 1 fixed = 85 total (was 85)
+1 💚	xmllint	0m 0s		No new issues.
+1 💚	spotbugs	1m 46s		the patch passed
+1 💚	hadoopcheck	12m 23s		Patch does not cause any errors with Hadoop 3.3.6 3.4.1.
+1 💚	spotless	0m 46s		patch has no errors when running spotless:check.
			_ Other Tests _
+1 💚	asflicense	0m 17s		The patch does not generate ASF License warnings.
		42m 43s

Subsystem	Report/Notes
Docker	ClientAPI=1.43 ServerAPI=1.43 base: https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7371/3/artifact/yetus-general-check/output/Dockerfile
GITHUB PR	#7371
Optional Tests	dupname asflicense javac codespell detsecrets xmllint hadoopcheck spotless compile spotbugs checkstyle hbaseanti jshint rubocop
uname	Linux dcaf2498a661 5.4.0-1103-aws #111~18.04.1-Ubuntu SMP Tue May 23 20:04:10 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	master / 188f039
Default Java	Eclipse Adoptium-17.0.11+9
Max. process+thread count	85 (vs. ulimit of 30000)
modules	C: hbase-server hbase-shell U: .
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7371/3/console
versions	git=2.34.1 maven=3.9.8 spotbugs=4.7.3 rubocop=1.37.1 xmllint=20913
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[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 28s		Docker mode activated.
-0 ⚠️	yetus	0m 3s		Unprocessed flag(s): --brief-report-file --spotbugs-strict-precheck --author-ignore-list --blanks-eol-ignore-file --blanks-tabs-ignore-file --quick-hadoopcheck
			_ Prechecks _
			_ master Compile Tests _
+0 🆗	mvndep	0m 19s		Maven dependency ordering for branch
+1 💚	mvninstall	3m 22s		master passed
+1 💚	compile	1m 12s		master passed
+1 💚	javadoc	0m 39s		master passed
+1 💚	shadedjars	6m 9s		branch has no errors when building our shaded downstream artifacts.
-0 ⚠️	patch	6m 26s		Used diff version of patch file. Binary files and potentially other changes not applied. Please rebase and squash commits if necessary.
			_ Patch Compile Tests _
+0 🆗	mvndep	0m 14s		Maven dependency ordering for patch
+1 💚	mvninstall	2m 58s		the patch passed
+1 💚	compile	1m 13s		the patch passed
+1 💚	javac	1m 13s		the patch passed
+1 💚	javadoc	0m 38s		the patch passed
+1 💚	shadedjars	6m 2s		patch has no errors when building our shaded downstream artifacts.
			_ Other Tests _
+1 💚	unit	243m 26s		hbase-server in the patch passed.
+1 💚	unit	8m 5s		hbase-shell in the patch passed.
		280m 40s

Subsystem	Report/Notes
Docker	ClientAPI=1.43 ServerAPI=1.43 base: https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7371/3/artifact/yetus-jdk17-hadoop3-check/output/Dockerfile
GITHUB PR	#7371
Optional Tests	javac javadoc unit shadedjars compile
uname	Linux 02d790886e7b 5.4.0-1103-aws #111~18.04.1-Ubuntu SMP Tue May 23 20:04:10 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	master / 188f039
Default Java	Eclipse Adoptium-17.0.11+9
Test Results	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7371/3/testReport/
Max. process+thread count	3466 (vs. ulimit of 30000)
modules	C: hbase-server hbase-shell U: .
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7371/3/console
versions	git=2.34.1 maven=3.9.8
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