Snowplow Java Tracker Core v0.1.4

Various important bug fixes; also note that this version of core is built against Java 1.6.

• Fixed incorrectly casts timestamp from long to double (#84)
• Moved 'eid' from Subject to Tracker class to prevent duplicated event IDs (#95)
• Now setting source/targetCompatibility to 1.6, thanks @dstendardi! (#94)
• Fixed typos in Tracker preconditions, thanks @czchen! (#99)

Snowplow Java Tracker Core v0.1.3

One bug fix

• Fixed flushBuffer doesn't clear the buffer (#79)

Snowplow Java Tracker Core v0.1.2

A couple of small bug fixes.

• Changed bufferOption from private to protected (#75)
• Fixed Tech Docs link in README (#77)

Snowplow Java Tracker v0.5.1

Upgraded Java Tracker Core to fix some regressions

• Bumped Core version to 0.1.1 (#71)

Snowplow Java Tracker Core v0.1.1

Fixed a couple of regression bugs in the core library.

• Values are not properly stringified in POST (#69)
• TrackerPayload doesn't stringify doubles (#68)

Snowplow Java Tracker v0.5.0

Some changes to the Tracker method signatures to support our upcoming Snowplow 0.9.7 release with POST support, bug fixes, and more.

• Blog post

For POST support

• Changed base64 encoder to use UTF8 characters (#60)
• Changed collector endpoint to // (#61)
• Added charset onto end of content type (#62)

API improvements

• Created an EnvelopePayload class (#50)
• Tracker context is now a list of maps (#56)
• Added support for callbacks for success/failure (#57)
• Allows user to configure buffer size (#58)

Documentation and testing

• Created unit tests for Subject class (#46)
• Removed .md extension from CHANGELOG (#59)

Snowplow Java Tracker v0.4.0

Significant refactoring of the codebase, plus new functionality such as POST support.

• Blog post

API improvements

• Added additional methods that don't require setting a timestamp (#49)
• Added Python-style subject class (#22)
• Removed configurations HashMap (#45)
• Added additional methods that don't require setting a context Map (#48)

New functionality

• Added support for in-memory batching (#6)
• Added POST support (#7)

Under the hood

• Created an async HTTP request solution (#37)
• Replaced contracts with cofoja (#43)
• Retrieves Snowplow version automatically pulled from Gradle (#13)

Snowplow Java Tracker v0.3.0

A set of incremental improvements to the codebase

• Blog post

API changes

• Added ability for contexts to be HashMap, not just JSON string (#11)
• Added timestamp as option to each track method (#26)
• Removed support for context passed in as String (#44)

Under the hood

• Updated Jackson dependency to newer version (#38)
• Removed the Contracts class and any use of it (#42)
• Added SLF4J logging for key events (e.g. tracker initialization) (#15)

Testing

• Created unit tests for Payload class (#34)
• Created unit tests for Utils class (#35)

Snowplow Java Tracker v0.2.0

Various improvements to the underlying codebase:

• Blog post

API changes

• Removed Tracker base constructor (#23)
• Changed transaction_items to use a Class, not a Map (#31)
• Removed context_vendor from Tracker constructor (#36)
• Camelcased all functions (#20)

Codebase updates

• Renamed PlowContractor (#19)
• Replaced org.JSON code with Jackson 1.9.13 (#14)
• Made sure null fields are left off from querystring (#21)
• Made track_ecommerce_transaction_item private (#29)
• Removed event_name and event_vendor from trackUnstructEvent (#32)
• Created Constant class or equivalent (#33)

Testing

• Moved all 3 main()s into unit tests (#5)
• Added Travis support to README (#9)
• Added tests for track_ecommerce_transaction and _transaction_item (#25)

Snowplow Java Tracker v0.1.0

The initial release of the Snowplow Java Tracker.

Huge thanks to Kevin Gleason for contributing this tracker to Snowplow!