Below are documentation on Polyglot and Softwareserver, including how they work together. Intended for developers or interested users. Started with what Rui learned as part of work of BD-460 "Software Server not setting correct public IP on checkins".
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User Interface
A user interacts with Polyglot. Polyglot works internally with software servers. By default Polyglot runs on port 8184, Softwareserver on port 8182. A user can use "http://<polyglot_ip>:8184/" to see the available endpoints / URLs, such as "http://<polyglot_ip>:8184/servers" to see the server IP list, or "http://<polyglot_ip>:8184/form" to use a form to submit a conversion request.
Internal Working
A Polyglot process goes to RabbitMQ, gets the consumer IPs, connects to these IP's softwareserver at the URL "<softewareserver_ip>:8182/applications". If the URL is accessible and contains valid content, Polyglot adds the IP to its server list.
A Softwareserver connects to RabbitMQ, picks up jobs (aka msgs) in the queues, processes them, and sends the results back by accessing Polyglot's endpoint at "<polyglot_ip>:8184/checkin/<jobid>/<result_url>".
Implementation Details
Both Polyglot and softwareserver are implemented in Java, currently using Restlet. Current configuration files are:
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Softwareserver job checkin is in SoftwareServerRESTUtilities.java, Polyglot accessing RabbitMQ part is in polyglot/PolyglotStewardAMQ.java.
Installation of Required Software Packages on Ubuntu Trusty (14.04)
Need to install the programs used in Softwareserver scripts:
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