This repo contains the source for the Amlen Message Broker. It contains (amongst other things) the Amlen Server itself, a WebUI and a bridge (to MQTT brokers or Kafka).

A website including documentation can be found at https://eclipse.org/amlen

A community blog can be found at https://amlen.org/

Requires an x86-64 Linux distribution. Amlen has been built on RHEL7, RHEL8 and recent versions of Fedora. Package names vary slightly between distributions (Fedora package names are listed here).

Install the prereq packages:

sudo dnf install openssl-devel openldap-devel boost-devel CUnit-devel pam-devel curl-devel 
sudo dnf install gcc make vim-common gcc-c++ net-snmp-devel libicu-devel jansson-devel
sudo dnf install ant ant-junit ant-contrib rpm-build icu libxslt dos2unix
sudo dnf install java-1.8.0-openjdk-devel

Extract the source into a directory, put the dependencies (see dependencies section of this readme) into another directory and then:

export BUILD_LABEL="$(date +%Y%m%d-%H%M)_git_private"
export SROOT=<directory source was extracted into>
export BROOT=${SROOT}
export DEPS_HOME=<directory containing dependencies>
export USE_REAL_TRANSLATIONS=true
export SLESNORPMS=yes
export IMASERVER_BASE_DIR=$BROOT/rpmtree
export JAVA_HOME=<suitable Java 8 SDK e.g. /etc/alternatives/java_sdk>

cd $SROOT/server_build
ant -f $SROOT/server_build/build.xml  2>&1 | tee /tmp/ant.log

Building the default set of components from this repository requires the following to be downloaded and placed into a directory (set the $DEP_HOME environment variable to point to this directory)

• openliberty-21.0.0.10.zip https://openliberty.io/downloads/
• jackson-annotations-2.12.3.jar https://repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-annotations/2.12.3/
• jackson-core-2.12.3.jar https://repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-core/2.12.3/
• jackson-databind-2.12.3.jar https://repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-databind/2.12.3/
• jackson-jaxrs-base-2.12.3.jar https://repo1.maven.org/maven2/com/fasterxml/jackson/jaxrs/jackson-jaxrs-base/2.12.3/
• jackson-jaxrs-json-provider-2.12.3.jar https://repo1.maven.org/maven2/com/fasterxml/jackson/jaxrs/jackson-jaxrs-json-provider/2.12.3/
• jackson-module-jaxb-annotations-2.12.3.jar https://repo1.maven.org/maven2/com/fasterxml/jackson/module/jackson-module-jaxb-annotations/2.12.3/
• icu4j-69_1.jar https://github.com/unicode-org/icu/releases/tag/release-69-1
• dojo-release-1.16.3-src.zip https://download.dojotoolkit.org/release-1.16.3/
• gridx-1.3.9.zip https://github.com/oria/gridx/releases
• d3-3.5.6.zip https://github.com/d3/d3/releases/download/v3.5.6/d3.zip (download d3.zip and rename)
• jms.jar https://mvnrepository.com/artifact/org.apache.geronimo.specs/geronimo-jms_1.1_spec/1.1.1/

Some of the non-default components (e.g. the bridge to IBM MQ) require other dependencies - see the next section to see dependencies for individual components

Some components (like Amlen server) could be packaged by Linux distros. For suggested ways of building individual components see the server_build/distrobuild sub directory.

There is a a Docker file and build script that we use to do the build at Eclipse that show downloading of the dependencies and setting of the environment variables. There can be found in the server_build/buildcontainer directory.