symphony

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deveiate.org/code/symphony

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github.com/ged/symphony

Description

Symphony is a subscription-based asynchronous job system. It allows you to define jobs that watch for lightweight events from a distributed-messaging AMQP broker, and do work based on their payload.

It includes several executables under bin/:

symphony:: A daemon which manages startup and shutdown of one or more Workers running Tasks as they are published from a queue.

symphony-task:: A wrapper that runs a single task, useful for testing, or if you don't require the process management that the symphony daemon provides.

Synopsis

    class WorkerTask < Symphony::Task
            # Process all events
            subscribe_to '#'

            def work( payload, metadata )
                    puts "I got a payload! %p" % [ payload ]
                    return true
            end
    end

For a more detailed description of usage, please refer to the USAGE document.

Installation

gem install symphony

Contributing

You can check out the current development source with Mercurial via its project page. Or if you prefer Git, via its Github mirror.

After checking out the source, run:

$ rake setup

This task will install dependencies, and do any other necessary developer setup.

Authors

License

Copyright © 2011-2020, Michael Granger and Mahlon E. Smith All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.