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uf:guanotes
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uf:guanotes [2008/09/26 13:57] elisag |
uf:guanotes [2009/11/18 15:12] elisag |
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| - | ====== Guanotes ====== | ||
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| - | ==== The concept==== | ||
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| - | Guanotes application allows flockrs to post notes, called guanotes, to the ambient ( i.e any device available in the surroundings ranging from other flockr device to devices installed on public places such as KK). This is a concept similar to Stickies application in Mac but guanotes can hop from one device to another. | ||
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| - | Flockrs can thus discover other flockrs guanotes, store them and exchange them later with other flockrs such that guanotes can be percolated through the entire Urbiflock. | ||
| - | |||
| - | Flockrs can also subscribe to a particular type of guanotes such that they are automatically notified whenever they meet a flockr carrying guanotes of that particular type. | ||
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| - | Another idea is that flockrs can stop the percolation of guanotes. For example, if a flockr detects that a spam guanote or a guanote with unapropiate content, it could stop its propagation. | ||
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| - | ==== Design ==== | ||
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| - | To implement Guanotes, we are going to reuse the concepts developed by [[http:// | ||
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| - | The idea is to build a framework similar to TOTA, called AmbientTOTA, | ||
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| - | Here comes the primitive operations to interact with the AmbientTota framework: | ||
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| - | < | ||
| - | //publishes a tuple into the ambient ( ~ inject in TOTA) | ||
| - | def inject(tuple) { | ||
| - | export: tuple as: Tuple | ||
| - | }; | ||
| - | |||
| - | // places a listener on to the local TS ( ~ subscribe in TOTA) | ||
| - | // it returns a publication object to be able to unsusbscribe | ||
| - | when: template matches:{ | tuple | | ||
| - | | ||
| - | } | ||
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| - | //Templates are currently boolean expressions on tuples. | ||
| - | Example of template applied to guanotes: | ||
| - | { |guanote| | ||
| - | </ | ||
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| - | A tuple in our system is just the object contained in a local TS offering the following API to propagate itself: | ||
| - | |||
| - | < | ||
| - | // called in every tuple at pass() | ||
| - | def decidePropagation() -> boolean | ||
| - | // specifies operations on the local TS | ||
| - | def doAction (); | ||
| - | // specifies operations on the tuple itself | ||
| - | def changeTupleContent() -> tuple | ||
| - | // if true -> note gets added to local TS | ||
| - | def decideStore () -> boolean | ||
| - | // if true -> tuple gets unexported and deleted from local TS. | ||
| - | //new operation not in TOTA | ||
| - | def decideDie() -> boolean | ||
| - | </ | ||
uf/guanotes.txt ยท Last modified: 2009/11/18 15:12 by elisag
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