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https://issues.apache.org/jira/browse/CELIX-389?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Roy Lenferink updated CELIX-389:
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Attachment: celix-pubsub.tar.gz
MD5 sum:
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SHA1 sum:
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> Publisher / subscriber implementation
> -------------------------------------
>
> Key: CELIX-389
> URL: https://issues.apache.org/jira/browse/CELIX-389
> Project: Celix
> Issue Type: Improvement
> Reporter: Roy Lenferink
> Attachments: celix-pubsub.tar.gz
>
>
> Over the past few months I've been working together with Pepijn Noltes,
> Erjan Altena and Gabriele Ricciardi on a (secure) publisher / subscriber
> implementation, which is based on the concepts of the remote service admin
> (i.e. rsa / topology / discovery pattern).
> Publishers are senders of data, subscribers can receive data. Publishers
> can publish/send data to certain channels (called 'topics' further on),
> subscribers can subscribe to these topics. For every topic a publisher
> service is created by the pubsub admin. This publisher is announced through
> etcd. So etcd is used for discovery of the publishers. Subscribers are also
> registered as a service by the pubsub admin and will watch etcd for changes
> and when a new publisher is announced, the subscriber will check if the topic
> matches its interests. If the subscriber is interested in/subscribed to a
> certain topic, a connection between publisher and subscriber will be
> instantiated by the pubsub admin.
> The dfi library is used for message serialization. The publisher / subscriber
> implementation will arrange that every message which will be send gets an
> unique id.
> For communication between publishers and subscribers UDP and ZeroMQ can be
> used. When using ZeroMQ it's also possible to setup a secure connection to
> encrypt the traffic being send between publishers and subscribers. This
> connection can be secured with ZeroMQ by using a curve25519 key pair per
> topic.
> The publisher/subscriber implementation supports sending of a single
> message and sending of multipart messages.
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