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Dev: Extending the Messaging Protocol
Brian Granger edited this page Feb 13, 2013
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1 revision
My conception of representation protocol.
- You need to opt-in for a type of representation independently for each variable,
- You need a fallback if the representation you want is not available.
- You might want several reprentation.
add this field to execution_request
rich_user_variable : [list_of_desired_repr_variable]
where each of list_of_desired_repr_variable is a dict with the following :
{
variable:'variable_name',
prefered_repr: [list of [list of preferred repr format]]
}
example, I have a variable gaussian that I need :
- as a
SVG, if not possible asPNG, otherwise, asJPG. - also as
LaTeX, or if not possible asPlainText
{
variable:'gaussian',
prefered_repr: [
['svg','png','jpg'],
['latex','text']
]
}
The response should be a dict whose keys are variable name, and value are dict of representation.
representation would be a dict with key being repr type, and value dict of status, error_reason and data.
response : {
gaussian : {
'svg' : {
status:'error',
data : null,
error_reason, 'no svg repr for object'
},
'png' : {
status:'ok',
data : '0123456789ABCDEF0123456789ABCDEF....',
error_reason: null
},
'png' : {
status:'not_computed',
data : null,
error_reason: null
},
'latex' : {
status:'ok',
data :'\LaTeX',
error_reason: null
},
'text' : {
status:'not_computed',
data : null,
error_reason: null
},
},
foo : {
'text' : {
status:'error',
data : null,
error_reason: 'object does not exist'
},
}
}