Created
August 11, 2014 10:13
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Script to load and geocode MOT data
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import gzip | |
import csv | |
from elasticsearch import helpers | |
from elasticsearch.client import Elasticsearch | |
import time | |
csv.register_dialect('piper', delimiter='|', quoting=csv.QUOTE_NONE) | |
# See http://postcodepal.com/dbgen/postcode_areas_true-centroids.zip | |
pf=open('/Users/Mark/Documents/work/irdata/MOT/postcode_areas.csv') | |
preader = csv.reader(pf) | |
centroids={}; | |
for prow in preader: | |
print prow | |
pcArea=prow[0] | |
pcTown=prow[4] | |
pcLat=prow[12] | |
pcLon=prow[13] | |
centroids[pcArea]={ | |
"town":pcTown, | |
"lat":pcLat, | |
"lon":pcLon | |
} | |
pf.close() | |
# See http://data.gov.uk/dataset/anonymised_mot_test and test results | |
f=gzip.open('/Users/Mark/Documents/work/irdata/MOT/test_result_2013.txt.gz') | |
start = time.time() | |
es = Elasticsearch() | |
actions = [] | |
reader = csv.reader(f, delimiter='|') | |
lc=0 | |
for row in reader: | |
doc={} | |
doc["ID"]=row[0] | |
doc["VehicleID"]=row[1] | |
doc["TestDate"]=row[2] | |
doc["TestClassID"]=row[3] | |
doc["TestType"]=row[4] | |
doc["TestResult"]=row[5] | |
doc["TestMileage"]=row[6] | |
doc["PostcodeArea"]=row[7] | |
doc["Make"]=row[8] | |
doc["Model"]=row[9] | |
doc["Colour"]=row[10] | |
doc["FuelType"]=row[11] | |
doc["CylinderCapacity"]=row[12] | |
doc["FirstUseDate"]=row[13] | |
centroid=centroids[doc["PostcodeArea"]] | |
if centroid is not None: | |
#print centroid | |
doc["town"]=centroid["town"], | |
doc["location"]={ | |
"lat":centroid["lat"], | |
"lon":centroid["lon"] | |
} | |
else: | |
print doc["PostcodeArea"] | |
action = { | |
"_index": "mots", | |
'_op_type': 'index', | |
"_type": "mot", | |
"_source": doc | |
} | |
actions.append(action) | |
# Flush bulk indexing action if necessary | |
if len(actions) >= 5000: | |
helpers.bulk(es, actions) | |
## TO check for failures and take appropriate action | |
del actions[0:len(actions)] | |
# Flush | |
if len(actions) >0: | |
helpers.bulk(es, actions) | |
del actions[0:len(actions)] | |
f.close() |
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{ | |
"settings" : { | |
"number_of_shards" : 1, | |
"number_of_replicas" : 0 | |
}, | |
"mappings":{ | |
"mot": { | |
"dynamic_templates" : [ { | |
"string_fields" : { | |
"mapping" : { | |
"index" : "analyzed", | |
"omit_norms" : true, | |
"type" : "string", | |
"fields" : { | |
"raw" : { | |
"index" : "not_analyzed", | |
"ignore_above" : 256, | |
"type" : "string" | |
} | |
} | |
}, | |
"match" : "*", | |
"match_mapping_type" : "string" | |
} | |
} ], | |
"properties": { | |
"TestDate" : { | |
"type" : "date", | |
"format" : "YYYY-MM-dd" | |
}, | |
"FirstUseDate" : { | |
"type" : "date", | |
"format" : "YYYY-MM-dd" | |
}, | |
"location" : { | |
"type" : "geo_point" | |
} | |
} | |
} | |
} | |
} |
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