This is a simple FogLAMP north plugin for sending data to Apache Kafka.

FogLAMP acts as a Kafka producer, sending reading data to Kafka. This implementation is a simplified producer that sends all data on a single Kafka topic. Each message contains an asset name, timestamp and set of readings values as a JSON document.

This plugin buils upon the open source librdkafka library and as such portions of ths work are copyright Magnbus Edenhill.

librdkafka - Apache Kafka C driver library

Copyright (c) 2012-2018, Magnus Edenhill All rights reserved.

The plugin is built on top of the librdkafka library. This must be downloaded, built and installed before the plugin can be built.

$ git clone https://github.com/edenhill/librdkafka.git
$ cd librdkafka
$ ./configure
$ make
$ sudo make install

To build FogLAMP "Kafka" C++ north plugin:

$ mkdir build
$ cd build
$ cmake ..

• By default the FogLAMP develop package header files and libraries are expected to be located in /usr/include/foglamp and /usr/lib/foglamp
• If FOGLAMP_ROOT env var is set and no -D options are set, the header files and libraries paths are pulled from the ones under the FOGLAMP_ROOT directory. Please note that you must first run 'make' in the FOGLAMP_ROOT directory.

You may also pass one or more of the following options to cmake to override this default behaviour:

• FOGLAMP_SRC sets the path of a FogLAMP source tree
• FOGLAMP_INCLUDE sets the path to FogLAMP header files
• FOGLAMP_LIB sets the path to FogLAMP libraries
• FOGLAMP_INSTALL sets the installation path of Random plugin

NOTE:

• The FOGLAMP_INCLUDE option should point to a location where all the FogLAMP header files have been installed in a single directory.
• The FOGLAMP_LIB option should point to a location where all the FogLAMP libraries have been installed in a single directory.
• 'make install' target is defined only when FOGLAMP_INSTALL is set

Examples:

• no options

  $ cmake ..

• no options and FOGLAMP_ROOT set

  $ export FOGLAMP_ROOT=/some_foglamp_setup

  $ cmake ..

• set FOGLAMP_SRC

  $ cmake -DFOGLAMP_SRC=/home/source/develop/FogLAMP ..

• set FOGLAMP_INCLUDE

  $ cmake -DFOGLAMP_INCLUDE=/dev-package/include ..

• set FOGLAMP_LIB

  $ cmake -DFOGLAMP_LIB=/home/dev/package/lib ..

• set FOGLAMP_INSTALL

  $ cmake -DFOGLAMP_INSTALL=/home/source/develop/FogLAMP ..

  $ cmake -DFOGLAMP_INSTALL=/usr/local/foglamp ..