[CCI] [Extensions] Added the ExtensionActionUtil class

[Kuanysh-kst]

Description

In this PR, I add methods to the ExtensionActionUtil class to reduce code repetition

Issues Resolved

opensearch-project/opensearch-sdk-java#607

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Commits are signed per the DCO using --signoff
• Commit changes are listed out in CHANGELOG.md file (See: Changelog)

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
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[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/13358/
• CommitID: 50c404a

[dblock]

Needs tests please.

[Kuanysh-kst]

@dbwiddis why when I want to run Junit test I get an error: Caused by: java.io.EOFException: tried to read: 101 bytes but this stream is limited to: 7
This error occurs when I need to create a new Extension Action Request object in this line:

   actionRequest = (ActionRequest) constructor.newInstance(requestByteStream);

and as I understood that the error occurs when comparing the length of a new byte array and the unicode of the first byte
here is the error path:

Caused by: java.io.EOFException: tried to read: 101 bytes but this stream is limited to: 7
	at org.opensearch.common.io.stream.InputStreamStreamInput.ensureCanReadBytes(InputStreamStreamInput.java:137)
	at org.opensearch.common.io.stream.StreamInput.readArraySize(StreamInput.java:1310)
	at org.opensearch.common.io.stream.StreamInput.readString(StreamInput.java:420)
	at org.opensearch.tasks.TaskId.readFromStream(TaskId.java:96)
	at org.opensearch.transport.TransportRequest.<init>(TransportRequest.java:71)
	at org.opensearch.action.ActionRequest.<init>(ActionRequest.java:56)
	at org.opensearch.extensions.action.ExtensionActionRequest.<init>(ExtensionActionRequest.java:52)

here is a test version of the test that throws an error:

            @Test
            public void testCreateActionRequest() throws IOException {
            String action = "example";
            ExtensionActionRequest request = new ExtensionActionRequest(action, action.getBytes(StandardCharsets.UTF_8));

            byte[] array = ExtensionActionUtil.createProxyRequestBytes(request);
            ExtensionActionRequest request1 = new ExtensionActionRequest(action,array);

            ActionRequest actionRequest = ExtensionActionUtil.createActionRequest(request1);
            assertNotNull(actionRequest);

    }

[Kuanysh-kst]

I solved it by adding this code to test:

        String action = "abc" ;
        int length = 10;
        byte lengthByte = (byte) (length & 0xff);

        byte[] requestClass = ExtensionActionRequest.class.getName().getBytes();
        System.out.println("cl: "+requestClass.length+ "+1+"+action.getBytes().length);
        byte[] result = ByteBuffer.allocate(requestClass.length + 2 + action.codePointAt(0))
            .put(requestClass)
            .put(UNIT_SEPARATOR)
            .put(lengthByte)
            .put(action.getBytes(StandardCharsets.UTF_8))
            .array();

with this code I set the length for the byte array:
byte lengthByte = (byte) (length & 0xff);

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/14045/
• CommitID: c2e1163
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/16514/
• CommitID: b4d99a5
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/16663/
• CommitID: 2edde0e
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/16667/
• CommitID: 470e324
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[Kuanysh-kst]

@owaiskazi19 , @ryanbogan can you check this PR

[dbwiddis]

LGTM

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/17276/
• CommitID: 470e324
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/18055/
• CommitID: 470e324
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/18095/
• CommitID: 470e324
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[dbwiddis]

Gradle check failure is a bwc bug since fixed. Please rebase to main to get gradle check to pass.

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: UNSTABLE ❕
• TEST FAILURES:

      2 org.opensearch.cluster.service.MasterServiceTests.classMethod
      1 org.opensearch.cluster.service.MasterServiceTests.testThrottlingForMultipleTaskTypes

• URL: https://build.ci.opensearch.org/job/gradle-check/18106/
• CommitID: c78d52c
  Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[codecov]

Codecov Report

Merging #6969 (c78d52c) into main (68c1c86) will decrease coverage by 0.18%.
The diff coverage is 87.09%.

@@             Coverage Diff              @@
##               main    #6969      +/-   ##
============================================
- Coverage     70.93%   70.76%   -0.18%     
+ Complexity    56636    56534     -102     
============================================
  Files          4719     4720       +1     
  Lines        267559   267590      +31     
  Branches      39206    39208       +2     
============================================
- Hits         189805   189350     -455     
- Misses        61714    62243     +529     
+ Partials      16040    15997      -43     

Impacted Files	Coverage Δ
...nsearch/extensions/action/ExtensionActionUtil.java	87.09% <87.09%> (ø)

... and 494 files with indirect coverage changes