| The system architecture is separated into parts: |
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| * Abstract protocol handling * |
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| package: o.a.v.xmpp.protocol |
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| Protocol workflow, state machine changes during handshake, consistency checks |
| Delegation to concrete handling |
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| * Concrete protocol handling * |
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| package: o.a.v.xmpp.applicationdomains |
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| Stanza handlers and Response builders |
| Concrete processing of stanzas |
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| * XML parsing into fragments XMPP |
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| package: o.a.v.xmpp.xmldecoder |
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| Determines stanza boundaries in a sequence of characters and translates into (potential) XMPP stanzas |
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| * Server runtime incl. session handling |
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| server instance with all its properties and switches. |
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| * Stanza infrastructure and tools |
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| packages: o.a.v.xmpp.stanza, o.a.v.xmpp.xmlfragment |
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| handles stanza objects freed from any representation (XML) |
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| * TCP binding |
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| package: o.a.v.mina |
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| binding to TCP protocol endpoint, handling endpoint events, delivering data from/to XML parsing |
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| * SASL authorization mechanism logic |
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| package: o.a.v.xmpp.authorization |
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| * SEDA: staged event driven architecture |
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| available stages: |
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| reading from TCP/IP socket - XMLStreamTokenizer |
| handling inbound stanzas from client - QueuedStanzaProcessor |
| handling outbound stanzas to clients - DeliveringStanzaRelay |
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| missing stages: |
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| handling outbound stanzas to servers - RecordingStanzaRelay (provisorial implementation) |
| handling inbound stanzas issued by self or remote servers (to go to clients or not) - missing! |
