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lukecampbell/scidata.py

Created February 23, 2012 19:43
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Mangling science data
Raw
scidata.py
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]
},
"label": "",
"type_": "RangeSet",
"bounds_id": "",
"updatable": True,
"optional": False,
"id": "",
"values_path": "fields/cndr_data"
},
"ctd_data": {
"description": "Conductivity temperature and depth observations from a Seabird CTD",
"element_type_id": "element_type",
"element_count_id": "record_count",
"type_": "DataStream",
"label": "Seabird CTD Data",
"encoding_id": "stream_encoding",
"values": None,
"id": None
},
"conductivity": {
"definition": "http://sweet.jpl.nasa.gov/2.0/physThermo.owl#Conductivity",
"description": "",
"domain_id": "time_domain",
"label": "",
"type_": "Coverage",
"range_id": "cndr_data",
"updatable": False,
"optional": True,
"id": ""
}
},
"stream_resource_id": "55cf756bb3cc4245bf90f727cc27e984",
"type_": "StreamDefinitionContainer",
"data_stream_id": "ctd_data"
}
def get_hdf_data(path):
hdf = {
'/east/conductivity':[1,2,3,4,5],
'/west/conductivity':[1,2,3,4,5],
'/east/temperature':[48,48,48,48,48],
'/west/temperature':[46,46,46,46,46],
'/east/pressure':[0,20,40,60],
'/west/pressure':[0,20,40,60]
}
return hdf[path]
def records(n, sub):
while True:
yval = []
try:
for i in xrange(sub):
yval = yval + [n.pop(0)]
yield yval
except IndexError:
if yval:
yield yval
break
class tree(dict):
def __init__(self, **kwargs):
for k,v in kwargs.iteritems():
if isinstance(v, dict):
self[k] = tree(**v)
else:
self[k] = v
def __getattr__(self, key):
if not hasattr(self, key):
return None
return self[key]
def __setattr__(self, key,val):
self[key] = val
def __dir__(self):
v = dir(super(tree,self))
return v + self.keys()
def key(definition, key):
return definition['identifiables'][key]
root_node = None
'''
For every
'''
def traverse(definition, node_id):
tmp = key(definition,node_id)
root = tree(**tmp)
for k,v in tmp.iteritems():
if k.endswith('_id'):
if v:
root[v] = traverse(definition,v)
elif k.endswith('_ids'):
for value in v:
if value:
root[value] = traverse(definition,value)
return root
def to_tree(definition):
identifiables = tree(**definition['identifiables'])
data_stream_id = definition['data_stream_id']
data_stream = tree(**identifiables[definition['data_stream_id']])
data_stream.encoding = tree(**identifiables[data_stream.encoding_id])
data_stream.element_type = tree(**identifiables[data_stream.element_type_id])
data_stream.element_count = tree(**identifiables[data_stream.element_count_id])
data_stream.element_type.data_record = tree(**identifiables[data_stream.element_type.data_record_id])
data_record = data_stream.element_type.data_record
data_record.fields = tree()
for field_id in data_record.field_ids:
data_record.fields[field_id] = tree(**identifiables[field_id])
for k,field in data_record.fields.iteritems():
data_record.fields[k].domain = tree(**identifiables[field.domain_id])
data_record.fields[k].range = tree(**identifiables[field.range_id])
return data_stream
if __name__ == '__main__':
from pprint import pprint
root = traverse(definition,definition['data_stream_id'])
pprint(root)
@dstuebe
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dstuebe commented Feb 24, 2012

Why aren't you using the dot notation?
granule.identifiables ?

@lukecampbell
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Author

lukecampbell commented Feb 24, 2012

because granule is a dictionary not a dotdict
in this script

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