Version v2.2.0.11

What's Changed

This is an important release since race conditions were observed

• In Mqtt1Service, fixed condition state in observations
• Added Heartbeat config param to override the heartbeat in the * PONG ... command
• Fixed race condition under high load between REST and MQTT
• Fixed file cache race condition
• Cleaned up Dockerfiles in the docker and demo with mtconnect/agent:latest as the foundation image
• Reduced image size for demo and builds

Version v2.2.0.10

New Features

• Added MQTT compose demo to demonstrate how to compose MTConnect, twin demo, and MQTT. (see demo directory).
• Some additions to the README for HttpHeaders and reorganized the content.
• Added gallons per minute conversion to liters per second
• Added documentation to the tests.

Bug Fixes

• Fixed conan build to check for usable cmake in the OS for cross-platform docker builds.
• Fixed bug in streaming when it falls behind or is out of range for samples.
• Updated schema files from schemas repo.

Version v2.2.0.9

Bug Fix Release

• Fixed agent device uuid by @wsobel in #341
• Added DeviceTopic as an alias for ProbeTopic for mqtt sinks by @wsobel in #346

Full Changelog: v2.2.0.8...v2.2.0.9

Version 2.2.0.8

Patch Bug Fix

• Fixes an issue during the initial sample request with an interval where overlapping observations were delivered.

Version 2.2.0.7

New Features

• New Beta MQTT sink for publishing to an MQTT Broker: Mqtt2Service
  • Does not create a topic per data item, only four topics are used per device
  • Rational: MTConnect rates were too fast for broker and exceeded number of in-flight messages. This solves the issue.
    • Probe, Current, Sample and Assets (similar to the REST api)
      • Probe - Provides the Device definition for a given device
      • Current - Provides a snapshot of all the data items at a fixed interval (default every 10 seconds)
      • Sample - Time series deltas published on changes at a minimum interval (default every 500ms)
      • Assets - One topic per asset document organized by device
    • Review readme for configuration options.

Bug Fixes

• Fixed Period Filter where in an edge case it would publish an additional observation not on period boundaries.

Internal Changes

• Created an AsyncObserver for the REST and MQTT 2 Sinks. The class allows Sinks to monitor a set of data items for change and only activate asynchronously when something happens. Keeps track of sequence numbers while waiting so recipient knows where to continue from.

Version 2.2.0.6

• Moved Dockerfiles for demo to demo directory and added demo/compose example

• Made CMake package installation compliant with *NIX platforms

• Refactored docker files with docker directory structure.

  • Uses the following volumes for configuration

    /mtconnect/config
    /mtconnect/data
    /mtconnect/log
    

  • Added documentation to demo and docker directories.

  • Added replicator container docker/replicator to replicate another MTConnect agent.

• Updated twin demo to support json v2

• Added support in agent adapter for multiple devices

• Added configuration AgentDeviceUUID to supply UUID of Agent Device externally

• Added GID and UID docker build arguments to override default group and user ids

• Fixed MqttUserName and MqttPassword configuration variables.

    MqttUserName = username
    MqttPassword = password
  

Version 2.2.0.5

The following changes were made to version 2.2.0.5:

• Revised Dockerfiles to support Conan 2
  • Revised configuration and packaging to be more *NIX friendly
  • Added WITH_TESTS build-arg to run unit tests after builds
  • Added support for environment variables in the configuration files.
    • Format is: Host=$HOST_NAME or Host=${HOST_NAME}
    • See the demo/agent/agent.doc for a path example
• Improved packaging with new cpack_... options in the conanfile.py
• Upgraded to boost to version 1.82

Version 2.2.0.4

• There are no new features; this release implemented automated build and release.
  • To review the build process, see .github/workflows/build.yml
  • Build time reduced from 3-5 hours to 40 minutes for cached builds.
  • Releases are now automated.
• The Dockerfile has been updated for version conan 2.
  • More work to come on the Docker support for the Agent.
• The following changes were made to the build system:
  • Moved the test directory to test_package to conform with conan best practices
  • Documented canan options, settings, and configurations relevant to the build in the README.md
  • Updated the build instructions in the README.md
  • Began packaging changes in CMakeLists.txt for *NIX platforms.
• Appveyor support has been discontinued.

Version 2.2.0.3

Version 2.2

• Official reference implementation of the MTConnect Agent version 2.2
• Added workflows for GitHub Actions moving to CI/CD

Change Log

Version 2.2.0.1 major changes

• All 2.2 changes in the information model
• Added dynamic changes to the device XML configuration from adapters and upstream agents
• Additional conan2 changes for the build environment
• Swagger documentation from the agent (/swagger)
• Updated JSON document generation

Version 2.2.0.1 Release Candidate 4

• Changed pipeline to use std::move instead of copy-on-write. The semantics allow for greater performance in the transforms.
• Fixed issues when building on Raspberry Pi 32 bit ARM architecture
• Allow device models to be delivered by adapters (sources) and automatically version Device.xml file in config.
  • VersionDeviceXml: Automatically create backup files whenever the Device set changes
  • CreateUniqueIds: Create a unique id for all elements in the Device file.
    • Rewrite all id references to point to the new id
    • Persist the original ids for secondary lookup for adapter consistency. (Gets written to the Device.xml)
• Fixed mqtt tests because of timing issue.
• Many other small fixes.

Version 2.2.0.1 Release Candidate 3

• Add MTConnect 2.2 support for the following features:
  • Added hash for Assets and Devices
  • Added ImageFiles for Configuration
  • Added ComponentConfigurationParameters Asset
  • Added uuid support for CoordinateSystems
• Added Swagger json API for Agent
  • Path is /swagger and optional query parameter pretty to format JSON
• Changed json serialization for version 2 based on feedback
• Objects where multiplicity can be > 1 now are always array
• Switched from nlohmann to rapidjson to improve json serializaton performance
• Pre-expand mruby Oniguruma source for windows build
• Fixed some conan build issues with install of mruby and mqtt_cpp in configuration

Version 2.1.0.6

What's Changed

• Default with_docs false to avoid unnecessary dependencies if doxygen is not installed
• Fixed bug when DataItems have duplicate names–caused crash in streaming
  • Added warning when duplicate names and sources are given for the same device
• Added fix for shared library installation
• Changed data item lookup to Id, Name, Source