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Architecture » History » Version 15

Greg Burri, 09/10/2009 11:05 AM

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h1. Architecture
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This page shows the architecture with two component diagrams, one for the Core and one for the GUI. The responsibilities of each component are then listed.
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For more information, see the BOUML project in the repository : source:/doc/uml
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h2. Core
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!core_components.png!
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h3. [[FileManager]]
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* Kept up to date a list of shared files.
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* Cuts file in chunks.
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* Each chunk has a hash and can be read or write.
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* Can make fast search with indexed words.
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* Can make fast search from a hash code.
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* The directory structure can be browse.
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* Theses data (files/dirs/chunks/hashes) are persisted to avoid re-hashing.
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h3. [[NetworkListener]]
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* Listens for new TCP connections from peers. Forward it to the _PeerManager_.
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* Listens for new UDP datagrams.
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* Provides some interfaces to listen some events.
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** New chat message.
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** New search result.
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* Sent periodically an UDP datagram to show its presence.
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** This message contains the top chunks.
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** For each chunk the known IP's are gave to the _DownloadManager_.
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h3. [[DownloadManager]]
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* Has a download queue with different status.
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* Has a pool of downloader which will choose a free chunk and :
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** Ask the chunk's peer source for the hashes if they are unknown.
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** Download it from a known peer.
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h3. [[UploadManager]]
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* Listens the _PeerManager_ for new upload requests.
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* Manage a pool of uploaders which will read a chunk from _FileManager_ and send it to the remote peer.
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h3. [[PeerManager]]
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* Knows all other peers and different information about them like nick, amount of sharing and speed transfer.
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* Each peer has a connection (socket) pool.
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* Treats new messages (unicast) from other peers.
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h3. [[RemoteControlManager]]
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* Manages all connections from remote controllers.
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* Send periodically the state of the core to the controllers.
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* Send asynchronous events to the controllers.
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* Dispatch the controllers commands.
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h2. GUI
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h2. Common
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h3. [[LogManager]]
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* Logs some kind of severity messages
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* Can store the log in a file
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* Used by Core and GUI