Apache Airavata

The OGCE suite has recently become an Apache Incubator project, named Apache Airavata. It should be noted that I have used and worked with the OGCE components (2008 - 2010), during my internship and for our final year project "Mooshabaya". 

XBaya Workflow Suite - We worked (2009/2010) with XBaya for our final year project and have also published a paper on our work (Mooshabaya - a mashup generator for XBaya).

WS-Messenger - a publish-subscribe based message broker - Supun M and I  worked with WS-Messenger during our internship (2008/2009) at WSO2.

Eventing Module Integration

Finally EventingHostObject is fixed with Axis2 messenger. Here we need to put the hostobjects.eventing.jar that is built from carbon-platform/carbon-components/javascript-hostobjects/eventing into wso2mashup-2.0.0/repository/components/dropins. EventingHostObject has a method to send notifications.

 
wso2mashup-2.0.0/product/modules/samples/EventMonitoring/EventingFunc.js -- Pls use this file to test the Eventing host object that is currently implemented.

Building Mashup Server - Maven Build

mvn clean install -Dmaven.test.skip=true

or offline build

mvn install -o -Dmaven.test.skip=true

References on creating the pom for mbaya bundle: 

[1] Bundle Plugin for Maven

[2] Bnd - Bundle Tool
[3] How to build OSGi bundles using Maven Bundle Plugin - Part 1 

Quick installation : WS-Messenger

1. Download Messenger here and extract to a location, which will later be pointed as WSNT_HOME.

2. create a mysql database, use db/mysqlCreationScript.txt to create the tables in the database

3. update the config/db.config to point to the data base (sample here).

4. run ant war to create war file. messenger.war will be created inside WSNT_HOME/distribution folder.

5. Download and install a web container (we use apache tomcat), deploy the war file by dropping it into the tomcat webapps folder, and start tomcat.

6. run ./startMessenger.sh at WSNT_HOME to start the messenger. [In Windows, it is the *.bat file]. If the downloaded version's startMessenger has any trouble, try this.

Starting the message broker includes two processes.

The war file deployed in the web container, can be reached at http://localhost:8080/messenger/ after starting the web container. It is called the broker.

Delivery thread of WS-Messenger can be reached at http://localhost:12347/ by running the startMessenger.

Testing - Running a sample

Download nowTest.java and put it into the folder WSNT_HOME/test/org/indiana/extreme/queue.

Create a project using WSNT_HOME/test as the source root.

Add the WSNT_HOME/lib jar files, and WSNT_HOME/build/lib/wsmg.jar to the path.

After running the messenger as mentioned above, run the nowTest.java.

This will depict the case, where 10 subscribers subscribing to one of the 3 available publishers.