Upgrade the exporter to support OpenSearch 2.9.0

[vinylen]

Description

Simple version change to support OpenSearch 2.9.0

---

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[lukas-vlcek]

@vinylen Did you have a chance to check what is wrong with the upgrade? I will be back in office on Monday so I will have a look but does it pass on your end?

./gradlew clean build

[vinylen]

@lukas-vlcek I'm sorry i'm no Java developer so i don't really understand what is going wrong. I ran a local nix-shell with gradle + openjdk and got this output when running the command ./gradlew clean build:

Welcome to Gradle 8.1.1!

Here are the highlights of this release:
 - Stable configuration cache
 - Experimental Kotlin DSL assignment syntax
 - Building with Java 20

For more details see https://docs.gradle.org/8.1.1/release-notes.html

Starting a Gradle Daemon (subsequent builds will be faster)

> Configure project :
Identifing version of OpenSearch based on plugin version
- OpenSearch version: 2.9.0
- Prometheus exporter plugin version: 2.9.0.0
=======================================
OpenSearch Build Hamster says Hello!
  Gradle Version        : 8.1.1
  OS Info               : Linux 6.4.4-200.fc38.x86_64 (amd64)
  JDK Version           : 19 (N/A JDK)
  JAVA_HOME             : /nix/store/2gbq413gml7igp533v3397vbrzd24xyb-openjdk-19.0.2+7/lib/openjdk
  Random Testing Seed   : C1E18E185A24E72D
  In FIPS 140 mode      : false
=======================================

> Task :clean UP-TO-DATE
> Task :generateNotice

> Task :compileJava
/var/home/vicnil/repos/personal/prometheus-exporter-plugin-for-opensearch/src/main/java/org/compuscene/metrics/prometheus/PrometheusMetricsCollector.java:642: error: cannot find symbol
            catalog.setNodeGauge(nodeInfo, "ingest_total_count", is.getTotalStats().getIngestCount());
                                                                                   ^
  symbol:   method getIngestCount()
  location: class OperationStats
/var/home/vicnil/repos/personal/prometheus-exporter-plugin-for-opensearch/src/main/java/org/compuscene/metrics/prometheus/PrometheusMetricsCollector.java:643: error: cannot find symbol
            catalog.setNodeGauge(nodeInfo, "ingest_total_time_seconds", is.getTotalStats().getIngestTimeInMillis() / 1000.0);
                                                                                          ^
  symbol:   method getIngestTimeInMillis()
  location: class OperationStats
/var/home/vicnil/repos/personal/prometheus-exporter-plugin-for-opensearch/src/main/java/org/compuscene/metrics/prometheus/PrometheusMetricsCollector.java:644: error: cannot find symbol
            catalog.setNodeGauge(nodeInfo, "ingest_total_current", is.getTotalStats().getIngestCurrent());
                                                                                     ^
  symbol:   method getIngestCurrent()
  location: class OperationStats
/var/home/vicnil/repos/personal/prometheus-exporter-plugin-for-opensearch/src/main/java/org/compuscene/metrics/prometheus/PrometheusMetricsCollector.java:645: error: cannot find symbol
            catalog.setNodeGauge(nodeInfo, "ingest_total_failed_count", is.getTotalStats().getIngestFailedCount());
                                                                                          ^
  symbol:   method getIngestFailedCount()
  location: class OperationStats
/var/home/vicnil/repos/personal/prometheus-exporter-plugin-for-opensearch/src/main/java/org/compuscene/metrics/prometheus/PrometheusMetricsCollector.java:649: error: cannot find symbol
                catalog.setNodeGauge(nodeInfo, "ingest_pipeline_total_count", st.getStats().getIngestCount(), pipeline);
                                                                                           ^
  symbol:   method getIngestCount()
  location: class OperationStats
/var/home/vicnil/repos/personal/prometheus-exporter-plugin-for-opensearch/src/main/java/org/compuscene/metrics/prometheus/PrometheusMetricsCollector.java:650: error: cannot find symbol
                catalog.setNodeGauge(nodeInfo, "ingest_pipeline_total_time_seconds", st.getStats().getIngestTimeInMillis() / 1000.0, pipeline);
                                                                                                  ^
  symbol:   method getIngestTimeInMillis()
  location: class OperationStats
/var/home/vicnil/repos/personal/prometheus-exporter-plugin-for-opensearch/src/main/java/org/compuscene/metrics/prometheus/PrometheusMetricsCollector.java:651: error: cannot find symbol
                catalog.setNodeGauge(nodeInfo, "ingest_pipeline_total_current", st.getStats().getIngestCurrent(), pipeline);
                                                                                             ^
  symbol:   method getIngestCurrent()
  location: class OperationStats
/var/home/vicnil/repos/personal/prometheus-exporter-plugin-for-opensearch/src/main/java/org/compuscene/metrics/prometheus/PrometheusMetricsCollector.java:652: error: cannot find symbol
                catalog.setNodeGauge(nodeInfo, "ingest_pipeline_total_failed_count", st.getStats().getIngestFailedCount(), pipeline);
                                                                                                  ^
  symbol:   method getIngestFailedCount()
  location: class OperationStats
/var/home/vicnil/repos/personal/prometheus-exporter-plugin-for-opensearch/src/main/java/org/compuscene/metrics/prometheus/PrometheusMetricsCollector.java:658: error: cannot find symbol
                        catalog.setNodeGauge(nodeInfo, "ingest_pipeline_processor_total_count", ps.getStats().getIngestCount(), pipeline, processor);
                                                                                                             ^
  symbol:   method getIngestCount()
  location: class OperationStats
/var/home/vicnil/repos/personal/prometheus-exporter-plugin-for-opensearch/src/main/java/org/compuscene/metrics/prometheus/PrometheusMetricsCollector.java:659: error: cannot find symbol
                        catalog.setNodeGauge(nodeInfo, "ingest_pipeline_processor_total_time_seconds", ps.getStats().getIngestTimeInMillis() / 1000.0, pipeline, processor);
                                                                                                                    ^
  symbol:   method getIngestTimeInMillis()
  location: class OperationStats
/var/home/vicnil/repos/personal/prometheus-exporter-plugin-for-opensearch/src/main/java/org/compuscene/metrics/prometheus/PrometheusMetricsCollector.java:660: error: cannot find symbol
                        catalog.setNodeGauge(nodeInfo, "ingest_pipeline_processor_total_current", ps.getStats().getIngestCurrent(), pipeline, processor);
                                                                                                               ^
  symbol:   method getIngestCurrent()
  location: class OperationStats
/var/home/vicnil/repos/personal/prometheus-exporter-plugin-for-opensearch/src/main/java/org/compuscene/metrics/prometheus/PrometheusMetricsCollector.java:661: error: cannot find symbol
                        catalog.setNodeGauge(nodeInfo, "ingest_pipeline_processor_total_failed_count", ps.getStats().getIngestFailedCount(), pipeline, processor);
                                                                                                                    ^
  symbol:   method getIngestFailedCount()
  location: class OperationStats
/var/home/vicnil/repos/personal/prometheus-exporter-plugin-for-opensearch/src/main/java/org/compuscene/metrics/prometheus/PrometheusSettings.java:167: error: cannot find symbol
        return Strings.splitStringByCommaToArray(this.selectedIndices);
                      ^
  symbol:   method splitStringByCommaToArray(String)
  location: class Strings
13 errors

> Task :compileJava FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':compileJava'.
> Compilation failed; see the compiler error output for details.

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

Deprecated Gradle features were used in this build, making it incompatible with Gradle 9.0.

You can use '--warning-mode all' to show the individual deprecation warnings and determine if they come from your own scripts or plugins.

See https://docs.gradle.org/8.1.1/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 31s
3 actionable tasks: 2 executed, 1 up-to-date

[lukas-vlcek]

There are some breaking changes in OpenSearch 2.9.0. I will be pushing new commits to this PR to fix it.

[lukas-vlcek]

@vinylen Can you please give me privs so that I can add commits to your PR?

git push vinylen remotes/vinylen/2.9.0 
Total 0 (delta 0), reused 0 (delta 0), pack-reused 0
To github.com:vinylen/prometheus-exporter-plugin-for-opensearch.git
 ! [remote rejected] vinylen/2.9.0 -> vinylen/2.9.0 (permission denied)
error: failed to push some refs to 'github.com:vinylen/prometheus-exporter-plugin-for-opensearch.git'

Or I will have to open a new PR on my side (though I will use your upgrade commit I still prefer pushing to your PR).

[vinylen]

@lukas-vlcek I'm sorry, I'm away on vacation and I don't have my laptop with me. I tried to find something to change in GitHub mobile but I can't find anything.

Looks like you might have to add your own PR, if you do, you are free to close this PR.

Sorry for the inconvenience.