[Fix #3721] Optimize event grouping

[fjtirado]

Fix #3721

Merge with apache/incubator-kie-kogito-apps#2122

When property kogito.events.grouping.binary is set, process instance events collection is sent in binary format, which takes less space than sending the collection in json.
The binary format is propietary, but it does not include any java stuff (besides the fact that is using Java byte stucture approach), so it is theoretically possible to interpret it from a different language.

The binary format reduce space by taking advantage of the following facts:

1. The information in cloud event extension is always the same for all events related with a particular process instance (except for variable name and event date) Nonetheless, for event date, we just store the delta from a time reference (at most as 5 bytes, rather than 8, if serializing dates as timestamps or a good number of characted, if serializing the date as UTF)
2. A substantial portion of cloud event extension information is duplicated in the event body (for example, processId, processInstanceId, processVersion, eventDate..) so we can send it just once
3. Property names does not need to be sent when the data structure is known by the sender and the receiver
4. Numbers can be sent as numbers, not as char sequences (saving a lot of space for number with more than one digit)

If after passing to binary, we still need to reduce the event size further, kogito.events.grouping.compress property can be set to true. This will gzip the resulting byte[] at the cost of some performance.

[kie-ci3]

PR job #18 was: UNSTABLE
Possible explanation: This should be test failures

Reproducer

build-chain build full_downstream -f 'https://raw.githubusercontent.com/${AUTHOR:apache}/incubator-kie-kogito-pipelines/${BRANCH:main}/.ci/buildchain-config-pr-cdb.yaml' -o 'bc' -p apache/incubator-kie-kogito-runtimes -u #3739 --skipParallelCheckout

NOTE: To install the build-chain tool, please refer to https://github.com/kiegroup/github-action-build-chain#local-execution

Please look here: https://ci-builds.apache.org/job/KIE/job/kogito/job/main/job/pullrequest_jobs/job/kogito-runtimes-pr/job/PR-3739/18/display/redirect

Test results:

• PASSED: 3396
• FAILED: 1

Those are the test failures:

org.jbpm.bpmn2.IntermediateEventTest.testIntermediateCatchEventTimerCycle3

expected: 3
but was: 2

[kie-ci3]

PR job #21 was: UNSTABLE
Possible explanation: This should be test failures

Reproducer

build-chain build full_downstream -f 'https://raw.githubusercontent.com/${AUTHOR:apache}/incubator-kie-kogito-pipelines/${BRANCH:main}/.ci/buildchain-config-pr-cdb.yaml' -o 'bc' -p apache/incubator-kie-kogito-runtimes -u #3739 --skipParallelCheckout

NOTE: To install the build-chain tool, please refer to https://github.com/kiegroup/github-action-build-chain#local-execution

Please look here: https://ci-builds.apache.org/job/KIE/job/kogito/job/main/job/pullrequest_jobs/job/kogito-runtimes-pr/job/PR-3739/21/display/redirect

Test results:

• PASSED: 3378
• FAILED: 2

Those are the test failures:

PR check / Build projects / org.kie.kogito.it.JDBCOptimisticLockingIT.testPersistence

java.util.concurrent.CompletionException: java.lang.RuntimeException: Unable to start Quarkus test resource class org.kie.kogito.testcontainers.quarkus.PostgreSqlQuarkusTestResource

PR check / Build projects / org.kie.kogito.it.JDBCPersistenceIT.testPersistence

java.util.concurrent.CompletionException: java.lang.RuntimeException: Unable to start Quarkus test resource class org.kie.kogito.testcontainers.quarkus.PostgreSqlQuarkusTestResource

[gmunozfe]

Looks good to me, outstanding work @fjtirado !

[ricardozanini]

nit; maybe in an upcoming change, but in ProcessInstanceDataEvent, you created enum types for it.

[kie-ci3]

PR job #27 was: UNSTABLE
Possible explanation: This should be test failures

Reproducer

build-chain build full_downstream -f 'https://raw.githubusercontent.com/${AUTHOR:apache}/incubator-kie-kogito-pipelines/${BRANCH:main}/.ci/buildchain-config-pr-cdb.yaml' -o 'bc' -p apache/incubator-kie-kogito-runtimes -u #3739 --skipParallelCheckout

NOTE: To install the build-chain tool, please refer to https://github.com/kiegroup/github-action-build-chain#local-execution

Please look here: https://ci-builds.apache.org/job/KIE/job/kogito/job/main/job/pullrequest_jobs/job/kogito-runtimes-pr/job/PR-3739/27/display/redirect

Test results:

• PASSED: 3396
• FAILED: 1

Those are the test failures:

org.jbpm.bpmn2.IntermediateEventTest.testIntermediateCatchEventTimerCycle3

expected: 3
but was: 2