feat: add support for gRPC client interceptors in ClientConfig

[NguyenHoangSon96]

Closes #

Proposed Changes

• Support passing interceptor functions to the Flight client.
• Add test case.

Checklist

• CHANGELOG.md updated
• Rebased/mergeable
• A test has been added if appropriate
• Tests pass
• Commit messages are conventional
• Sign CLA (if not already signed)

[codecov]

Codecov Report

❌ Patch coverage is 87.50000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 87.26%. Comparing base (db93077) to head (ec69587).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...va/com/influxdb/v3/client/config/ClientConfig.java	83.33%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #360      +/-   ##
==========================================
- Coverage   87.27%   87.26%   -0.01%     
==========================================
  Files          20       20              
  Lines        1336     1343       +7     
  Branches      227      229       +2     
==========================================
+ Hits         1166     1172       +6     
  Misses         81       81              
- Partials       89       90       +1     

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[alespour]

LGTM, let's ask Copilot now...

[Copilot]

Pull request overview

This PR adds support for gRPC client interceptors in the ClientConfig, allowing users to pass custom interceptor functions to the Flight client for query operations. This enables use cases like custom header injection, logging, monitoring, or request modification at the gRPC layer.

Changes:

• Added interceptors field to ClientConfig with getter and builder method
• Updated FlightSqlClient to apply interceptors to the NettyChannelBuilder when configured
• Added test case demonstrating header injection via an interceptor

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 6 comments.

File	Description
CHANGELOG.md	Documents the new feature for version 1.9.0
src/main/java/com/influxdb/v3/client/config/ClientConfig.java	Adds interceptors field, getter, builder method, and updates equals/hashCode
src/main/java/com/influxdb/v3/client/internal/FlightSqlClient.java	Applies interceptors to NettyChannelBuilder when creating FlightClient
src/test/java/com/influxdb/v3/client/internal/FlightSqlClientTest.java	Adds test case verifying interceptor functionality with custom header injection

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[alespour]

LGTM, please check Copilot review, mostly nit picks.

[Copilot]

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated no new comments.

Comments suppressed due to low confidence (1)

src/main/java/com/influxdb/v3/client/config/ClientConfig.java:418

• The toString() method should include the interceptors field for consistency with other configuration fields. Most configuration fields like headers, defaultTags, sslRootsFilePath, and disableGRPCCompression are included in the string representation for debugging purposes. Add a line to include interceptors in the string representation.

    @Override
    public String toString() {
        return new StringJoiner(", ", ClientConfig.class.getSimpleName() + "ClientConfig[", "]")
                .add("host='" + host + "'")
                .add("organization='" + organization + "'")
                .add("database='" + database + "'")
                .add("writePrecision=" + writePrecision)
                .add("gzipThreshold=" + gzipThreshold)
                .add("writeNoSync=" + writeNoSync)
                .add("timeout=" + timeout)
                .add("writeTimeout=" + writeTimeout)
                .add("queryTimeout=" + queryTimeout)
                .add("allowHttpRedirects=" + allowHttpRedirects)
                .add("disableServerCertificateValidation=" + disableServerCertificateValidation)
                .add("proxy=" + proxy)
                .add("proxyUrl=" + proxyUrl)
                .add("authenticator=" + authenticator)
                .add("headers=" + headers)
                .add("defaultTags=" + defaultTags)
                .add("sslRootsFilePath=" + sslRootsFilePath)
                .add("disableGRPCCompression=" + disableGRPCCompression)
                .toString();

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