* feat: Add FirestoreOpenTelemetryOptions to FirestoreOptions.

* feat: Add com.google.cloud.firestore.telemetry package.

* Address code review feedback.

* Factor out the otel version in pom.xml.

* feat: Add FirestoreOpenTelemetryOptions to FirestoreOptions.

* feat: Add com.google.cloud.firestore.telemetry package.

* fix: Remove OpenCensus tracing code.

#1590)

* feat: Add FirestoreOpenTelemetryOptions to FirestoreOptions.

* feat: Add com.google.cloud.firestore.telemetry package.

* fix: Remove OpenCensus tracing code.

* feat: tracing for aggregate queries, bulkwriter, partition queries, and listDocuments.

* Address code review feedback.

* Address feedback.

* don't use wildcard imports.

* feat: Add FirestoreOpenTelemetryOptions to FirestoreOptions.

* feat: Add com.google.cloud.firestore.telemetry package.

* fix: Remove OpenCensus tracing code.

* feat: tracing for aggregate queries, bulkwriter, partition queries, and listDocuments.

* feat: trace instrumentation for DocumentReference methods.

* feat: Add FirestoreOpenTelemetryOptions to FirestoreOptions.

* feat: Add com.google.cloud.firestore.telemetry package.

* fix: Remove OpenCensus tracing code.

* feat: tracing for aggregate queries, bulkwriter, partition queries, and listDocuments.

* feat: trace instrumentation for DocumentReference methods.

* feat: trace instrumentation for queries and transactions.

* test: Adding first e2e client-tracing test w/ Custom Root Span (#1621)

* test: Adding first e2e client-tracing test w/ Custom Root Span

* Roll back E2E tests commit.

* Address feedback.

* Address feedback (better event log message).

* Address feedback.

---------

Co-authored-by: Jimit J Shah <57637300+jimit-j-shah@users.noreply.github.com>

…e Java Server SDK using OpenTelemetry SDK and Cloud Trace Exporter against Cloud Trace. (#1635)

* Adding first e2e client-tracing test w/ Custom Root Span

* test: Adding first e2e client-tracing test w/ Custom Root Span

* Fixing test dependencies and use default GCP testing project.

Fixing

* Fixing test dependencies and use default GCP testing project.

* Fixing formatting

* Add aggregationQueryGet Test

* Add bulkWriterCommitTrace Test

* Fixing running multiple-tests

* Add partitionQuery Test

* Add collectionListDocumentsTrace Test

* Add docRef*Trace Tests

* Add docRefUpdate*Trace and docRefDelete*Trace Tests

* Fixing Trace fetching using retries for missing or incomplete traces due to eventual consistency of Cloud Trace

* Add get/query Trace Tests

* Add Transaction test

* Added TraceContainer to be able to test transaction test-cases

* test: Adding Transaction tests

* test: Adding Transaction tests

* test: Adding TestParameterInjector to run the test for global and non-global opentelemetry SDK instances

* test: formatting and cleanup

* test: Adding first e2e client-tracing test w/ Custom Root Span

* test: Add aggregationQueryGet Test

* test: Add bulkWriterCommitTrace Test and fixed running multiple-tests

* test: Add partitionQuery Test

* test: Add collectionListDocumentsTrace Test

* test: Add docRefUpdate*Trace and docRefDelete*Trace Tests and fixed Trace fetching using retries for missing or incomplete traces due to eventual consistency of Cloud Trace

* test: Add get/query Trace Tests

* test: Added Transaction tests using TraceContainer to verify traces for Transaction ops (BeginTransaction, Rollback etc)

* test: Adding TestParameterInjector to run the test for global and non-global opentelemetry SDK instances

* test: Formatting and cleanup

* test: review comments

* test: fixing dfs to handle case where the compareTo callstack may be shorter than the trace callstack - don't need to throw an exception in that case

* test: Consolidating verification methods

* test: review comments

* fix: Rename 'enabled' to 'tracingEnabled'.

In the future, FirestoreOpenTelemetryOptions will support enabling/disabling
Logging and Metrics as well. So we should use a better name for this field.

* address feedback.

* fix: Minor improvement to the ITE2ETracingTest.

* revert the numExpectedSpans change.

* fix: Necessary test improvements for CI environments.

* Address feedback.

…-merge

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…-merge-2

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…-merge-4

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