Features

• #745: New example WriteHttpExceptionHandled.java showing how to make use of InfluxException.headers() when HTTP Errors are returned from server. Also, now writes selected headers to client log.
• #719: InfluxQLQueryService header changes.
  • Accept header can now be defined when making InfluxQLQuery calls. Supoorted MIME types:
    • application/csv
    • application/json
  • The value application/csv remains the default.
  • ⚠️ Side effects of these changes:
    • When using application/json, timestamp fields are returned in the RFC3339 format unless InfluxQLQuery.setPrecision() has been previously called, in which case they are returned in the POSIX epoch format.
    • When using application/csv, timestamp fields are returned in the POSIX epoch format.
  • Convenience methods have been added to InfluxQLQueryAPI to simplify expressly specifying JSON or CSV calls.
  • Epoch timestamps can also be ensured by calling InfluxQLQuery.setPrecision() before executing a query call.
  • An AcceptHeader field has also been added to the InfluxQLQuery class and can be set with InfluxQLQuery.setAcceptHeader().
  • More information from the server side:
    • Generated REST API Documentation
    • Influx 1.1 query compatibility
  • See the updated InfluxQLExample

Bug Fixes

1. #744 following an InfluxQLQueryAPI.query() call, empty results from the server no longer result in a null result value.

Dependencies

Update dependencies:

Build:

• #753: spring-boot to 3.3.2
• #726: kotlin to 2.0.0
• #752: micrometer-registry-influx to 1.13.2
• #749: kotlin-coroutines to 1.8.1
• #735: scala-collection-compat_2.12 to 2.12.0
• #740: pekko to 1.0.3
• #741: commons-csv to 1.11.0
• #743: gson to 2.11.0

Maven:

• #721: build-helper-maven-plugin to 3.6.0
• #728: maven-source-plugin to 3.3.1
• #729: maven-enforcer-plugin to 3.5.0
• #730: scala-maven-plugin to 4.9.1
• #734: maven-compiler-plugin to 3.13.0
• #736: jacoco-maven-plugin to 0.8.12
• #748: maven-surefire-plugin, maven-failsafe-plugin to 3.3.1
• #746: maven-jar-plugin to 3.4.2
• #747: maven-project-info-reports-plugin to 3.6.2
• #751: license-maven-plugin to 4.5

Test:

• #724: assertj to 3.26.0
• #725: assertk-jvm to 0.28.1
• #750: assertj-core to 3.26.3
• #737: junit-jupiter to 5.10.3
• #754: hamcrest to 3.0

Examples:

• #723: commons-cli to 1.8.0
• #742: commons-io to 2.16.1