Release 7.2.0 · influxdata/influxdb-client-java

#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

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

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