'plants.species_id': {
'type': int,
'args': ['species.id'],
'function': lambda v: v
}
}))
engines.append(species_id_select)
# Data source for the plants.
plants_source = DBTable(input_file, 'plants', plants_schema)
# Data accessor for the plants data source.
plants_accessor = DataAccessor(species_id_select.output(), plants_source,
FindIdentities)
engines.append(plants_accessor)
plants_filter = Filter(plants_accessor.output(),
FilterAge(plants_accessor.output().schema()))
engines.append(plants_filter)
# Select only the species ID for querying plants.
plants_height_select = Select(
plants_filter.output(),
UniversalSelect(
plants_filter.output().schema(), {
'plants.height': {
'type': int,
'args': ['plants.height'],
'function': lambda v: v
}
}))
engines.append(plants_height_select)
# create a data accessor
data_accessor = DataAccessor(
query_streamer.output(),
data_source,
FindRange
)
name_age_combiner = NameAgeCombiner(data_accessor.output().schema())
select = Select(data_accessor.output(), name_age_combiner)
query_grouper = Group(
query_streamer.output(),
{'age': lambda a, b: a is b}
)
joiner = Join(query_grouper.output(), select.output())
filter = Filter(joiner.output(), FilterNameAge(joiner.output().schema()))
result_stack = ResultStack(
filter.output(),
# joiner.output(),
# query_streamer.output(),
# query_grouper.output(),
# select.output(),
)
info_queue = Queue()
def manage(task):
print 'Running: ' + str(task)
task.run()
info_queue.put(ThreadInfo())
data_schema = Schema()
data_schema.append(Attribute('name', str))
data_schema.append(Attribute('age', int))
data_schema.append(Attribute('rowid', int, True))
data_source = DBTable('test.db', 'person', data_schema)
# create a data accessor
data_accessor = DataAccessor(query_streamer.output(), data_source, FindRange)
name_age_combiner = NameAgeCombiner(data_accessor.output().schema())
select = Select(data_accessor.output(), name_age_combiner)
query_grouper = Group(query_streamer.output(), {'age': lambda a, b: a is b})
joiner = Join(query_grouper.output(), select.output())
filter = Filter(joiner.output(), FilterNameAge(joiner.output().schema()))
result_stack = ResultStack(
filter.output(),
# joiner.output(),
# query_streamer.output(),
# query_grouper.output(),
# select.output(),
)
info_queue = Queue()
def manage(task):
print 'Running: ' + str(task)
task.run()
},
'counties.geom': {
'type': Geometry,
'args': ['states.geom', 'counties.geom'],
'function': lambda a, b: intersection(a, b),
}
}
)
)
engines.append(counties_trim)
counties_filter = Filter(
counties_trim.output(),
UniversalFilter(
counties_trim.output().schema(),
{
'counties.geom': lambda g: g and g.geom().is_valid and g.geom().area != 0,
}
)
)
engines.append(counties_filter)
counties_group = Group(
counties_filter.output(),
{
'states.oid': lambda a, b: a == b,
'counties.oid': lambda a, b: a == b,
}
)
engines.append(counties_group)
)
)
engines.append(species_id_select)
# Data source for the plants.
plants_source = DBTable(input_file, 'plants', plants_schema)
# Data accessor for the plants data source.
plants_accessor = DataAccessor(
species_id_select.output(),
plants_source,
FindIdentities
)
engines.append(plants_accessor)
plants_filter = Filter(
plants_accessor.output(),
FilterAge(plants_accessor.output().schema())
)
engines.append(plants_filter)
# Select only the species ID for querying plants.
plants_height_select = Select(
plants_filter.output(),
UniversalSelect(
plants_filter.output().schema(),
{
'plants.height': {
'type': int,
'args': ['plants.height'],
'function': lambda v: v
}
}
'type': int,
'args': ['counties.oid'],
'function': lambda v: v,
},
'counties.geom': {
'type': Geometry,
'args': ['states.geom', 'counties.geom'],
'function': lambda a, b: intersection(a, b),
}
}))
engines.append(counties_trim)
counties_filter = Filter(
counties_trim.output(),
UniversalFilter(
counties_trim.output().schema(), {
'counties.geom':
lambda g: g and g.geom().is_valid and g.geom().area != 0,
}))
engines.append(counties_filter)
counties_group = Group(counties_filter.output(), {
'states.oid': lambda a, b: a == b,
'counties.oid': lambda a, b: a == b,
})
engines.append(counties_group)
#############################################################
#
# Zip
#
