feat: support partial writes

[alespour]

Proposed Changes

Adds partial-write support with acceptPartial write option and corresponding config/env keys (writeAcceptPartial, INFLUX_WRITE_ACCEPT_PARTIAL). The client now exposes structured partial-write details via
InfluxDBPartialWriteException, so callers can inspect which lines failed and why, then decide whether to drop/retry/fix specific lines in a batch.

See Partial writes in InfluxDB documentation.

  WriteOptions options = new WriteOptions.Builder()
          .acceptPartial(true)
          .build();

  try {
      client.writeRecord(lp, options);
  } catch (InfluxDBPartialWriteException e) {
      for (InfluxDBPartialWriteException.LineError lineErr : e.lineErrors()) {
          System.out.printf(
                  "line %s failed: %s (%s)%n",
                  lineErr.lineNumber(),
                  lineErr.errorMessage(),
                  lineErr.originalLine()
          );
      }
  } catch (InfluxDBApiHttpException e) {
      System.out.println(e.getMessage());
  }

Checklist

• CHANGELOG.md updated
• Rebased/mergeable
• A test has been added if appropriate
• Tests pass
• Commit messages are conventional

[codecov]

Codecov Report

❌ Patch coverage is 94.40000% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 88.16%. Comparing base (0283c9f) to head (8bc0938).

Files with missing lines	Patch %	Lines
...va/com/influxdb/v3/client/internal/RestClient.java	90.54%	0 Missing and 7 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #365      +/-   ##
==========================================
+ Coverage   87.90%   88.16%   +0.25%     
==========================================
  Files          20       21       +1     
  Lines        1397     1495      +98     
  Branches      241      269      +28     
==========================================
+ Hits         1228     1318      +90     
  Misses         81       81              
- Partials       88       96       +8     

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[Copilot]

Pull request overview

Adds support for InfluxDB 3 “partial writes” by introducing an acceptPartial write option (and corresponding config/env keys) and surfacing parsed, line-level write errors through a dedicated exception type.

Changes:

• Add acceptPartial to WriteOptions and ClientConfig (incl. connection string, env, and system properties support).
• Parse v3 write error responses to expose line-level error details via InfluxDBPartialWriteException.
• Add/extend unit + integration tests and update README/CHANGELOG documentation.

Reviewed changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/main/java/com/influxdb/v3/client/write/WriteOptions.java	Adds acceptPartial option, builder support, safe accessor, and equality/hash updates.
src/main/java/com/influxdb/v3/client/config/ClientConfig.java	Adds writeAcceptPartial config with parsing from connection string/env/system properties.
src/main/java/com/influxdb/v3/client/internal/InfluxDBClientImpl.java	Uses v3 write endpoint when noSync or acceptPartial is enabled; adds accept_partial query param.
src/main/java/com/influxdb/v3/client/internal/RestClient.java	Parses response bodies for line-level write errors and throws a structured partial-write exception.
src/main/java/com/influxdb/v3/client/InfluxDBPartialWriteException.java	New exception type to expose line-level write failures to callers.
src/main/java/com/influxdb/v3/client/InfluxDBClient.java	Documents the new config/env/system property key in client factory docs.
src/test/java/com/influxdb/v3/client/write/WriteOptionsTest.java	Extends WriteOptions tests for equality/hash and config override behavior of acceptPartial.
src/test/java/com/influxdb/v3/client/config/ClientConfigTest.java	Extends config parsing/toString/equality tests for writeAcceptPartial.
src/test/java/com/influxdb/v3/client/internal/RestClientTest.java	Adds assertions around structured partial-write parsing and fallback behavior.
src/test/java/com/influxdb/v3/client/InfluxDBClientWriteTest.java	Adds request-shape tests for accept_partial and v3/v2 behavior.
src/test/java/com/influxdb/v3/client/integration/E2ETest.java	Adds E2E validation for accept-partial error handling and exception typing.
README.md	Documents how to use acceptPartial and inspect InfluxDBPartialWriteException details.
CHANGELOG.md	Adds changelog entry for partial write support.

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[Copilot]

Pull request overview

Copilot reviewed 13 out of 13 changed files in this pull request and generated 3 comments.

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