def parse_arguments(self, request):
# Parse input arguments
self.log.debug("Parsing arguments")
try:
ds = request.get_dataset()[0]
except:
raise NexusProcessingException(reason="'ds' argument is required", code=400)
try:
longitude = float(request.get_decimal_arg("longitude", default=None))
except:
raise NexusProcessingException(reason="'longitude' argument is required", code=400)
try:
latitude = float(request.get_decimal_arg("latitude", default=None))
except:
raise NexusProcessingException(reason="'latitude' argument is required", code=400)
search_datetime = request.get_datetime_arg('date', default=None)
day_of_year = request.get_int_arg('day', default=None)
if (search_datetime is not None and day_of_year is not None) \
or (search_datetime is None and day_of_year is None):
raise NexusProcessingException(
reason="At least one of 'day' or 'date' arguments are required but not both.",
code=400)
if search_datetime is not None:
day_of_year = search_datetime.timetuple().tm_yday
return_all = request.get_boolean_arg("allInTile", default=True)
return ds, longitude, latitude, day_of_year, return_all
def parse_arguments(self, request):
# Parse input arguments
self.log.debug("Parsing arguments")
try:
ds = request.get_dataset()[0]
except:
raise NexusProcessingException(reason="'ds' argument is required", code=400)
try:
bounding_polygon = box(request.get_min_lon(), request.get_min_lat(), request.get_max_lon(),
request.get_max_lat())
except:
raise NexusProcessingException(
reason="'minLon', 'minLat', 'maxLon', and 'maxLat' arguments are required.",
code=400)
try:
start_time = request.get_start_datetime()
except:
raise NexusProcessingException(
reason="'startTime' argument is required. Can be int value milliseconds from epoch or string format YYYY-MM-DDTHH:mm:ssZ",
code=400)
try:
end_time = request.get_end_datetime()
except:
raise NexusProcessingException(
reason="'endTime' argument is required. Can be int value milliseconds from epoch or string format YYYY-MM-DDTHH:mm:ssZ",
code=400)
start_seconds_from_epoch = long((start_time - EPOCH).total_seconds())
end_seconds_from_epoch = long((end_time - EPOCH).total_seconds())
return ds, bounding_polygon, start_seconds_from_epoch, end_seconds_from_epoch
def parse_arguments(self, request):
# Parse input arguments
self.log.debug("Parsing arguments")
try:
bounding_polygon = request.get_bounding_polygon()
except:
try:
minLat = request.get_min_lat()
maxLat = request.get_max_lat()
minLon = request.get_min_lon()
maxLon = request.get_max_lon()
bounding_polygon = Polygon([
(minLon, minLat), # (west, south)
(maxLon, minLat), # (east, south)
(maxLon, maxLat), # (east, north)
(minLon, maxLat), # (west, north)
(minLon, minLat)
]) # (west, south)
except:
raise NexusProcessingException(
reason=
"'b' argument or 'minLon', 'minLat', 'maxLon', and 'maxLat' arguments are required. If 'b' is used, it must be comma-delimited float formatted as Minimum (Western) Longitude, Minimum (Southern) Latitude, Maximum (Eastern) Longitude, Maximum (Northern) Latitude",
code=400)
dataset = request.get_argument('dataset', None)
if dataset is None:
dataset = request.get_argument('ds1', None)
if dataset is None:
raise NexusProcessingException(
reason="'dataset' or 'ds1' argument is required", code=400)
climatology = request.get_argument('climatology', None)
if climatology is None:
climatology = request.get_argument('ds2', None)
if climatology is None:
raise NexusProcessingException(
reason="'climatology' or 'ds2' argument is required", code=400)
try:
start_time = request.get_start_datetime()
except:
raise NexusProcessingException(
reason=
"'startTime' argument is required. Can be int value seconds from epoch or string format YYYY-MM-DDTHH:mm:ssZ",
code=400)
try:
end_time = request.get_end_datetime()
except:
raise NexusProcessingException(
reason=
"'endTime' argument is required. Can be int value seconds from epoch or string format YYYY-MM-DDTHH:mm:ssZ",
code=400)
start_seconds_from_epoch = long((start_time - EPOCH).total_seconds())
end_seconds_from_epoch = long((end_time - EPOCH).total_seconds())
plot = request.get_boolean_arg("plot", default=False)
return bounding_polygon, dataset, climatology, start_time, start_seconds_from_epoch, end_time, end_seconds_from_epoch, plot
def do_get(self, request):
instance = self.__clazz.instance(algorithm_config=self.__algorithm_config, sc=self.__sc)
results = instance.calc(request)
try:
self.set_status(results.status_code)
except AttributeError:
pass
if request.get_content_type() == ContentTypes.JSON:
self.set_header("Content-Type", "application/json")
try:
self.write(results.toJson())
except AttributeError:
traceback.print_exc(file=sys.stdout)
self.write(json.dumps(results, indent=4))
elif request.get_content_type() == ContentTypes.PNG:
self.set_header("Content-Type", "image/png")
try:
self.write(results.toImage())
except AttributeError:
traceback.print_exc(file=sys.stdout)
raise NexusProcessingException(reason="Unable to convert results to an Image.")
elif request.get_content_type() == ContentTypes.CSV:
self.set_header("Content-Type", "text/csv")
self.set_header("Content-Disposition", "filename=\"%s\"" % request.get_argument('filename', "download.csv"))
try:
self.write(results.toCSV())
except:
traceback.print_exc(file=sys.stdout)
raise NexusProcessingException(reason="Unable to convert results to CSV.")
elif request.get_content_type() == ContentTypes.NETCDF:
self.set_header("Content-Type", "application/x-netcdf")
self.set_header("Content-Disposition", "filename=\"%s\"" % request.get_argument('filename', "download.nc"))
try:
self.write(results.toNetCDF())
except:
traceback.print_exc(file=sys.stdout)
raise NexusProcessingException(reason="Unable to convert results to NetCDF.")
elif request.get_content_type() == ContentTypes.ZIP:
self.set_header("Content-Type", "application/zip")
self.set_header("Content-Disposition", "filename=\"%s\"" % request.get_argument('filename', "download.zip"))
try:
self.write(results.toZip())
except:
traceback.print_exc(file=sys.stdout)
raise NexusProcessingException(reason="Unable to convert results to Zip.")
return results
def parse_arguments(self, request):
# Parse input arguments
self.log.debug("Parsing arguments")
source_name = request.get_argument('source', None)
if source_name is None or source_name.strip() == '':
raise NexusProcessingException(reason="'source' argument is required", code=400)
parameter_s = request.get_argument('parameter', None)
if parameter_s not in ['sst', 'sss', 'wind', None]:
raise NexusProcessingException(
reason="Parameter %s not supported. Must be one of 'sst', 'sss', 'wind'." % parameter_s, code=400)
try:
start_time = request.get_start_datetime()
start_time = start_time.strftime("%Y-%m-%dT%H:%M:%SZ")
except:
raise NexusProcessingException(
reason="'startTime' argument is required. Can be int value seconds from epoch or string format YYYY-MM-DDTHH:mm:ssZ",
code=400)
try:
end_time = request.get_end_datetime()
end_time = end_time.strftime("%Y-%m-%dT%H:%M:%SZ")
except:
raise NexusProcessingException(
reason="'endTime' argument is required. Can be int value seconds from epoch or string format YYYY-MM-DDTHH:mm:ssZ",
code=400)
if start_time > end_time:
raise NexusProcessingException(
reason="The starting time must be before the ending time. Received startTime: %s, endTime: %s" % (
request.get_start_datetime().strftime(ISO_8601), request.get_end_datetime().strftime(ISO_8601)),
code=400)
try:
bounding_polygon = request.get_bounding_polygon()
except:
raise NexusProcessingException(
reason="'b' argument is required. Must be comma-delimited float formatted as Minimum (Western) Longitude, Minimum (Southern) Latitude, Maximum (Eastern) Longitude, Maximum (Northern) Latitude",
code=400)
depth_min = request.get_decimal_arg('depthMin', default=None)
depth_max = request.get_decimal_arg('depthMax', default=None)
if depth_min is not None and depth_max is not None and depth_min >= depth_max:
raise NexusProcessingException(
reason="Depth Min should be less than Depth Max", code=400)
platforms = request.get_argument('platforms', None)
if platforms is not None:
try:
p_validation = platforms.split(',')
p_validation = [int(p) for p in p_validation]
del p_validation
except:
raise NexusProcessingException(reason="platforms must be a comma-delimited list of integers", code=400)
return source_name, parameter_s, start_time, end_time, bounding_polygon, depth_min, depth_max, platforms
def render(self, tornado_handler, result):
tornado_handler.set_header("Content-Type", "application/x-netcdf")
tornado_handler.set_header("Content-Disposition", "filename=\"%s\"" % self._request.get_argument('filename', "download.nc"))
try:
self.write(result.toNetCDF())
except:
traceback.print_exc(file=sys.stdout)
raise NexusProcessingException(reason="Unable to convert results to NetCDF.")
def calc(self, request, **args):
bounding_polygon, dataset, climatology, start_time, start_seconds_from_epoch, end_time, end_seconds_from_epoch, plot = self.parse_arguments(
request)
self.log.debug("Querying for tiles in search domain")
# Get tile ids in box
tile_ids = [
tile.tile_id
for tile in self._get_tile_service().find_tiles_in_polygon(
bounding_polygon,
dataset,
start_seconds_from_epoch,
end_seconds_from_epoch,
fetch_data=False,
fl='id',
sort=[
'tile_min_time_dt asc', 'tile_min_lon asc',
'tile_min_lat asc'
],
rows=5000)
]
# Call spark_matchup
try:
spark_result = spark_anomalies_driver(self._tile_service_factory,
tile_ids,
wkt.dumps(bounding_polygon),
dataset,
climatology,
sc=self._sc)
except Exception as e:
self.log.exception(e)
raise NexusProcessingException(
reason=
"An unknown error occurred while computing average differences",
code=500)
average_and_std_by_day = spark_result
min_lon, min_lat, max_lon, max_lat = bounding_polygon.bounds
result = DDAResult(results=[[{
'time': dayms,
'mean': avg_std[0],
'std': avg_std[1],
'ds': 0
}] for dayms, avg_std in average_and_std_by_day],
stats={},
meta=self.get_meta(dataset),
computeOptions=None,
minLat=min_lat,
maxLat=max_lat,
minLon=min_lon,
maxLon=max_lon,
ds=dataset,
startTime=start_seconds_from_epoch,
endTime=end_seconds_from_epoch)
result.meta()['climatology'] = climatology
return result
def render(self, tornado_handler, result):
tornado_handler.set_header("Content-Type", "image/png")
try:
tornado_handler.write(result.toImage())
tornado_handler.finish()
except AttributeError:
traceback.print_exc(file=sys.stdout)
raise NexusProcessingException(
reason="Unable to convert results to an Image.")
def parse_arguments(self, request):
# Parse input arguments
self.log.debug("Parsing arguments")
try:
ds = request.get_dataset()
if type(ds) == list or type(ds) == tuple:
ds = next(iter(ds))
except:
raise NexusProcessingException(
reason="'ds' argument is required. Must be a string", code=400)
# Do not allow time series on Climatology
if next(iter([clim for clim in ds if 'CLIM' in clim]), False):
raise NexusProcessingException(
reason=
"Cannot compute Latitude/Longitude Time Average plot on a climatology",
code=400)
west, south, east, north = request.get_bounding_box()
bounding_polygon = shapely.geometry.Polygon([(west, south),
(east, south),
(east, north),
(west, north),
(west, south)])
start_time = request.get_start_datetime()
end_time = request.get_end_datetime()
if start_time > end_time:
raise NexusProcessingException(
reason=
"The starting time must be before the ending time. Received startTime: %s, endTime: %s"
% (request.get_start_datetime().strftime(ISO_8601),
request.get_end_datetime().strftime(ISO_8601)),
code=400)
nparts_requested = request.get_nparts()
start_seconds_from_epoch = long((start_time - EPOCH).total_seconds())
end_seconds_from_epoch = long((end_time - EPOCH).total_seconds())
return ds, bounding_polygon, start_seconds_from_epoch, end_seconds_from_epoch, nparts_requested
def wrapped(*args, **kwargs1):
try:
with SparkHandler.SparkJobContext(self.spark_job_stack) as job_context:
# TODO Pool and Job are forced to a 1-to-1 relationship
calc_func.im_self._sc.setLocalProperty("spark.scheduler.pool", job_context.job_name)
calc_func.im_self._sc.setJobGroup(job_context.job_name, "a spark job")
return calc_func(*args, **kwargs1)
except SparkHandler.SparkJobContext.MaxConcurrentJobsReached:
raise NexusProcessingException(code=503,
reason="Max concurrent requests reached. Please try again later.")
def getTimeSeriesStatsForBoxSingleDataSet(self, min_lat, max_lat, min_lon, max_lon, ds, start_time=0, end_time=-1,
applySeasonalFilter=True, applyLowPass=True):
daysinrange = self._tile_service.find_days_in_range_asc(min_lat, max_lat, min_lon, max_lon, ds, start_time,
end_time)
if len(daysinrange) == 0:
raise NoDataException(reason="No data found for selected timeframe")
maxprocesses = int(self.algorithm_config.get("multiprocessing", "maxprocesses"))
results = []
if maxprocesses == 1:
calculator = TimeSeriesCalculator()
for dayinseconds in daysinrange:
result = calculator.calc_average_on_day(min_lat, max_lat, min_lon, max_lon, ds, dayinseconds)
results.append(result)
else:
# Create a task to calc average difference for each day
manager = Manager()
work_queue = manager.Queue()
done_queue = manager.Queue()
for dayinseconds in daysinrange:
work_queue.put(
('calc_average_on_day', min_lat, max_lat, min_lon, max_lon, ds, dayinseconds))
[work_queue.put(SENTINEL) for _ in xrange(0, maxprocesses)]
# Start new processes to handle the work
pool = Pool(maxprocesses)
[pool.apply_async(pool_worker, (work_queue, done_queue)) for _ in xrange(0, maxprocesses)]
pool.close()
# Collect the results as [(day (in ms), average difference for that day)]
for i in xrange(0, len(daysinrange)):
result = done_queue.get()
try:
error_str = result['error']
self.log.error(error_str)
raise NexusProcessingException(reason="Error calculating average by day.")
except KeyError:
pass
results.append(result)
pool.terminate()
manager.shutdown()
results = sorted(results, key=lambda entry: entry["time"])
filt.applyAllFiltersOnField(results, 'mean', applySeasonal=applySeasonalFilter, applyLowPass=applyLowPass)
filt.applyAllFiltersOnField(results, 'max', applySeasonal=applySeasonalFilter, applyLowPass=applyLowPass)
filt.applyAllFiltersOnField(results, 'min', applySeasonal=applySeasonalFilter, applyLowPass=applyLowPass)
return results, {}
def render(self, tornado_handler, result):
tornado_handler.set_header("Content-Type", "text/csv")
tornado_handler.set_header(
"Content-Disposition", "filename=\"%s\"" %
self._request.get_argument('filename', "download.csv"))
try:
tornado_handler.write(result.toCSV())
tornado_handler.finish()
except:
traceback.print_exc(file=sys.stdout)
raise NexusProcessingException(
reason="Unable to convert results to CSV.")
def calc(self, computeOptions, **args):
tiles = self._get_tile_service().get_tiles_bounded_by_box(computeOptions.get_min_lat(), computeOptions.get_max_lat(),
computeOptions.get_min_lon(), computeOptions.get_max_lon(),
computeOptions.get_dataset()[0],
computeOptions.get_start_time(),
computeOptions.get_end_time())
if len(tiles) == 0:
raise NexusProcessingException.NoDataException(reason="No data found for selected timeframe")
maxprocesses = int(self.algorithm_config.get("multiprocessing", "maxprocesses"))
results = []
if maxprocesses == 1:
calculator = LongitudeHofMoellerCalculator()
for x, tile in enumerate(tiles):
result = calculator.longitude_time_hofmoeller_stats(tile, x)
results.append(result)
else:
manager = Manager()
work_queue = manager.Queue()
done_queue = manager.Queue()
for x, tile in enumerate(tiles):
work_queue.put(
('longitude_time_hofmoeller_stats', tile, x))
[work_queue.put(SENTINEL) for _ in range(0, maxprocesses)]
# Start new processes to handle the work
pool = Pool(maxprocesses)
[pool.apply_async(pool_worker, (LONGITUDE, work_queue, done_queue)) for _ in range(0, maxprocesses)]
pool.close()
# Collect the results
for x, tile in enumerate(tiles):
result = done_queue.get()
try:
error_str = result['error']
logger.error(error_str)
raise NexusProcessingException(reason="Error calculating longitude_time_hofmoeller_stats.")
except KeyError:
pass
results.append(result)
pool.terminate()
manager.shutdown()
results = sorted(results, key=lambda entry: entry["time"])
results = self.applyDeseasonToHofMoeller(results, pivot="lons")
result = HoffMoellerResults(results=results, computeOptions=computeOptions, type=HoffMoellerResults.LONGITUDE)
return result
def get_daily_difference_average_for_box(self, min_lat, max_lat, min_lon,
max_lon, dataset1, dataset2,
start_time, end_time):
daysinrange = self._tile_service.find_days_in_range_asc(
min_lat, max_lat, min_lon, max_lon, dataset1, start_time, end_time)
maxprocesses = int(
self.algorithm_config.get("multiprocessing", "maxprocesses"))
if maxprocesses == 1:
calculator = DailyDifferenceAverageCalculator()
averagebyday = []
for dayinseconds in daysinrange:
result = calculator.calc_average_diff_on_day(
min_lat, max_lat, min_lon, max_lon, dataset1, dataset2,
dayinseconds)
averagebyday.append((result[0], result[1]))
else:
# Create a task to calc average difference for each day
manager = Manager()
work_queue = manager.Queue()
done_queue = manager.Queue()
for dayinseconds in daysinrange:
work_queue.put(
('calc_average_diff_on_day', min_lat, max_lat, min_lon,
max_lon, dataset1, dataset2, dayinseconds))
[work_queue.put(SENTINEL) for _ in xrange(0, maxprocesses)]
# Start new processes to handle the work
pool = Pool(maxprocesses)
[
pool.apply_async(pool_worker, (work_queue, done_queue))
for _ in xrange(0, maxprocesses)
]
pool.close()
# Collect the results as [(day (in ms), average difference for that day)]
averagebyday = []
for i in xrange(0, len(daysinrange)):
result = done_queue.get()
if result[0] == 'error':
print >> sys.stderr, result[1]
raise NexusProcessingException(
reason="Error calculating average by day.")
rdata = result
averagebyday.append((rdata[0], rdata[1]))
pool.terminate()
manager.shutdown()
return averagebyday
def parse_arguments(self, request):
# Parse input arguments
self.log.debug("Parsing arguments")
try:
ds = request.get_dataset()[0]
except:
raise NexusProcessingException(reason="'ds' argument is required",
code=400)
parameter_s = request.get_argument('parameter', None)
if parameter_s not in ['sst', 'sss', 'wind', None]:
raise NexusProcessingException(
reason=
"Parameter %s not supported. Must be one of 'sst', 'sss', 'wind'."
% parameter_s,
code=400)
try:
start_time = request.get_start_datetime()
start_time = long((start_time - EPOCH).total_seconds())
except:
raise NexusProcessingException(
reason=
"'startTime' argument is required. Can be int value seconds from epoch or string format YYYY-MM-DDTHH:mm:ssZ",
code=400)
try:
end_time = request.get_end_datetime()
end_time = long((end_time - EPOCH).total_seconds())
except:
raise NexusProcessingException(
reason=
"'endTime' argument is required. Can be int value seconds from epoch or string format YYYY-MM-DDTHH:mm:ssZ",
code=400)
if start_time > end_time:
raise NexusProcessingException(
reason=
"The starting time must be before the ending time. Received startTime: %s, endTime: %s"
% (request.get_start_datetime().strftime(ISO_8601),
request.get_end_datetime().strftime(ISO_8601)),
code=400)
bounding_polygon = metadata_filter = None
try:
bounding_polygon = request.get_bounding_polygon()
except:
metadata_filter = request.get_metadata_filter()
if 0 == len(metadata_filter):
raise NexusProcessingException(
reason=
"'b' or 'metadataFilter' argument is required. 'b' must be comma-delimited float formatted "
"as Minimum (Western) Longitude, Minimum (Southern) Latitude, Maximum (Eastern) Longitude, "
"Maximum (Northern) Latitude. 'metadataFilter' must be in the form key:value",
code=400)
return ds, parameter_s, start_time, end_time, bounding_polygon, metadata_filter
def __doQuery(endpoint, startTime, endTime, bbox, depth_min=None, depth_max=None, itemsPerPage=10, startIndex=0, platforms=None,
pageCallback=None):
params = {"startTime": startTime, "endTime": endTime, "bbox": bbox, "itemsPerPage": itemsPerPage,
"startIndex": startIndex, "stats": "true"}
if depth_min is not None:
params['minDepth'] = depth_min
if depth_max is not None:
params['maxDepth'] = depth_max
if platforms is not None:
params["platform"] = platforms.split(",")
resultsRaw = __fetchJson(endpoint["url"], params)
boundsConstrainer = geo.BoundsConstrainer(north=-90, south=90, west=180, east=-180)
if resultsRaw["totalResults"] == 0 or len(resultsRaw["results"]) == 0: # Double-sanity check
return [], resultsRaw["totalResults"], startIndex, itemsPerPage, boundsConstrainer
try:
results = []
for resultdict in resultsRaw["results"]:
result = __resultRawToUsable(resultdict)
result["source"] = endpoint["name"]
boundsConstrainer.testCoords(north=result["y"], south=result["y"], west=result["x"], east=result["x"])
results.append(result)
if "stats_fields" in resultsRaw and len(resultsRaw["results"]) == 0:
stats = resultsRaw["stats_fields"]
if "lat" in stats and "lon" in stats:
boundsConstrainer.testCoords(north=stats['lat']['max'], south=stats['lat']['min'],
west=stats['lon']['min'], east=stats['lon']['max'])
if pageCallback is not None:
pageCallback(results)
'''
If pageCallback was supplied, we assume this call to be asynchronous. Otherwise combine all the results data and return it.
'''
if pageCallback is None:
return results, int(resultsRaw["totalResults"]), int(resultsRaw["startIndex"]), int(
resultsRaw["itemsPerPage"]), boundsConstrainer
else:
return [], int(resultsRaw["totalResults"]), int(resultsRaw["startIndex"]), int(
resultsRaw["itemsPerPage"]), boundsConstrainer
except:
print "Invalid or missing JSON in response."
traceback.print_exc()
raise NexusProcessingException(reason="Invalid or missing JSON in response.")
def calc(self, computeOptions, **args):
execution_id = computeOptions.get_argument("id", None)
try:
execution_id = uuid.UUID(execution_id)
except:
raise NexusProcessingException(reason="'id' argument must be a valid uuid", code=400)
simple_results = computeOptions.get_boolean_arg("simpleResults", default=False)
with ResultsStorage.ResultsRetrieval() as storage:
params, stats, data = storage.retrieveResults(execution_id, trim_data=simple_results)
return BaseDomsHandler.DomsQueryResults(results=data, args=params, details=stats, bounds=None, count=None,
computeOptions=None, executionId=execution_id)
def calc(self, computeOptions, **args):
"""
:param computeOptions: StatsComputeOptions
:param args: dict
:return:
"""
spark_master, spark_nexecs, spark_nparts = computeOptions.get_spark_cfg(
)
self._setQueryParams(computeOptions.get_dataset()[0],
(float(computeOptions.get_min_lat()),
float(computeOptions.get_max_lat()),
float(computeOptions.get_min_lon()),
float(computeOptions.get_max_lon())),
computeOptions.get_start_time(),
computeOptions.get_end_time(),
spark_master=spark_master,
spark_nexecs=spark_nexecs,
spark_nparts=spark_nparts)
if 'CLIM' in self._ds:
raise NexusProcessingException(
reason=
"Cannot compute Latitude/Longitude Time Average plot on a climatology",
code=400)
nexus_tiles = self._find_global_tile_set()
# print 'tiles:'
# for tile in nexus_tiles:
# print tile.granule
# print tile.section_spec
# print 'lat:', tile.latitudes
# print 'lon:', tile.longitudes
# nexus_tiles)
if len(nexus_tiles) == 0:
raise NoDataException(
reason="No data found for selected timeframe")
self.log.debug('Found {0} tiles'.format(len(nexus_tiles)))
self.log.debug(
'Using Native resolution: lat_res={0}, lon_res={1}'.format(
self._latRes, self._lonRes))
nlats = int((self._maxLat - self._minLatCent) / self._latRes) + 1
nlons = int((self._maxLon - self._minLonCent) / self._lonRes) + 1
self.log.debug('nlats={0}, nlons={1}'.format(nlats, nlons))
self.log.debug('center lat range = {0} to {1}'.format(
self._minLatCent, self._maxLatCent))
self.log.debug('center lon range = {0} to {1}'.format(
self._minLonCent, self._maxLonCent))
# for tile in nexus_tiles:
# print 'lats: ', tile.latitudes.compressed()
# print 'lons: ', tile.longitudes.compressed()
# Create array of tuples to pass to Spark map function
nexus_tiles_spark = [[
self._find_tile_bounds(t), self._startTime, self._endTime, self._ds
] for t in nexus_tiles]
# print 'nexus_tiles_spark = ', nexus_tiles_spark
# Remove empty tiles (should have bounds set to None)
bad_tile_inds = np.where([t[0] is None for t in nexus_tiles_spark])[0]
for i in np.flipud(bad_tile_inds):
del nexus_tiles_spark[i]
# Expand Spark map tuple array by duplicating each entry N times,
# where N is the number of ways we want the time dimension carved up.
num_time_parts = 72
# num_time_parts = 1
nexus_tiles_spark = np.repeat(nexus_tiles_spark,
num_time_parts,
axis=0)
self.log.debug('repeated len(nexus_tiles_spark) = {0}'.format(
len(nexus_tiles_spark)))
# Set the time boundaries for each of the Spark map tuples.
# Every Nth element in the array gets the same time bounds.
spark_part_times = np.linspace(self._startTime,
self._endTime,
num_time_parts + 1,
dtype=np.int64)
spark_part_time_ranges = \
np.repeat([[[spark_part_times[i],
spark_part_times[i + 1]] for i in range(num_time_parts)]],
len(nexus_tiles_spark) / num_time_parts, axis=0).reshape((len(nexus_tiles_spark), 2))
self.log.debug(
'spark_part_time_ranges={0}'.format(spark_part_time_ranges))
nexus_tiles_spark[:, 1:3] = spark_part_time_ranges
# print 'nexus_tiles_spark final = '
# for i in range(len(nexus_tiles_spark)):
# print nexus_tiles_spark[i]
# Launch Spark computations
rdd = self._sc.parallelize(nexus_tiles_spark, self._spark_nparts)
sum_count_part = rdd.map(self._map)
sum_count = \
sum_count_part.combineByKey(lambda val: val,
lambda x, val: (x[0] + val[0],
x[1] + val[1]),
lambda x, y: (x[0] + y[0], x[1] + y[1]))
fill = self._fill
avg_tiles = \
sum_count.map(lambda (bounds, (sum_tile, cnt_tile)):
(bounds, [[{'avg': (sum_tile[y, x] / cnt_tile[y, x])
if (cnt_tile[y, x] > 0)
else fill,
'cnt': cnt_tile[y, x]}
for x in
range(sum_tile.shape[1])]
for y in
range(sum_tile.shape[0])])).collect()
# Combine subset results to produce global map.
#
# The tiles below are NOT Nexus objects. They are tuples
# with the time avg map data and lat-lon bounding box.
a = np.zeros((nlats, nlons), dtype=np.float64, order='C')
n = np.zeros((nlats, nlons), dtype=np.uint32, order='C')
for tile in avg_tiles:
if tile is not None:
((tile_min_lat, tile_max_lat, tile_min_lon, tile_max_lon),
tile_stats) = tile
tile_data = np.ma.array([[
tile_stats[y][x]['avg'] for x in range(len(tile_stats[0]))
] for y in range(len(tile_stats))])
tile_cnt = np.array([[
tile_stats[y][x]['cnt'] for x in range(len(tile_stats[0]))
] for y in range(len(tile_stats))])
tile_data.mask = ~(tile_cnt.astype(bool))
y0 = self._lat2ind(tile_min_lat)
y1 = y0 + tile_data.shape[0] - 1
x0 = self._lon2ind(tile_min_lon)
x1 = x0 + tile_data.shape[1] - 1
if np.any(np.logical_not(tile_data.mask)):
self.log.debug(
'writing tile lat {0}-{1}, lon {2}-{3}, map y {4}-{5}, map x {6}-{7}'
.format(tile_min_lat, tile_max_lat, tile_min_lon,
tile_max_lon, y0, y1, x0, x1))
a[y0:y1 + 1, x0:x1 + 1] = tile_data
n[y0:y1 + 1, x0:x1 + 1] = tile_cnt
else:
self.log.debug(
'All pixels masked in tile lat {0}-{1}, lon {2}-{3}, map y {4}-{5}, map x {6}-{7}'
.format(tile_min_lat, tile_max_lat, tile_min_lon,
tile_max_lon, y0, y1, x0, x1))
# Store global map in a NetCDF file.
self._create_nc_file(a, 'tam.nc', 'val', fill=self._fill)
# Create dict for JSON response
results = [[{
'avg': a[y, x],
'cnt': int(n[y, x]),
'lat': self._ind2lat(y),
'lon': self._ind2lon(x)
} for x in range(a.shape[1])] for y in range(a.shape[0])]
return TimeAvgMapSparkResults(results=results,
meta={},
computeOptions=computeOptions)
def calc(self, computeOptions, **args):
"""
:param computeOptions: StatsComputeOptions
:param args: dict
:return:
"""
ds = computeOptions.get_dataset()
if type(ds) != list and type(ds) != tuple:
ds = (ds, )
if next(iter([clim for clim in ds if 'CLIM' in clim]), False):
raise NexusProcessingException(
reason="Cannot compute time series on a climatology", code=400)
resultsRaw = []
spark_master, spark_nexecs, spark_nparts = computeOptions.get_spark_cfg(
)
for shortName in ds:
results, meta = self.getTimeSeriesStatsForBoxSingleDataSet(
computeOptions.get_min_lat(),
computeOptions.get_max_lat(),
computeOptions.get_min_lon(),
computeOptions.get_max_lon(),
shortName,
computeOptions.get_start_time(),
computeOptions.get_end_time(),
computeOptions.get_apply_seasonal_cycle_filter(),
computeOptions.get_apply_low_pass_filter(),
spark_master=spark_master,
spark_nexecs=spark_nexecs,
spark_nparts=spark_nparts)
resultsRaw.append([results, meta])
results = self._mergeResults(resultsRaw)
if len(ds) == 2:
try:
stats = self.calculateComparisonStats(results, suffix="")
except Exception:
stats = {}
tb = traceback.format_exc()
self.log.warn("Error when calculating comparison stats:\n%s" %
tb)
if computeOptions.get_apply_seasonal_cycle_filter():
try:
s = self.calculateComparisonStats(results,
suffix="Seasonal")
stats = self._mergeDicts(stats, s)
except Exception:
tb = traceback.format_exc()
self.log.warn(
"Error when calculating Seasonal comparison stats:\n%s"
% tb)
if computeOptions.get_apply_low_pass_filter():
try:
s = self.calculateComparisonStats(results,
suffix="LowPass")
stats = self._mergeDicts(stats, s)
except Exception:
tb = traceback.format_exc()
self.log.warn(
"Error when calculating LowPass comparison stats:\n%s"
% tb)
if computeOptions.get_apply_seasonal_cycle_filter(
) and computeOptions.get_apply_low_pass_filter():
try:
s = self.calculateComparisonStats(results,
suffix="SeasonalLowPass")
stats = self._mergeDicts(stats, s)
except Exception:
tb = traceback.format_exc()
self.log.warn(
"Error when calculating SeasonalLowPass comparison stats:\n%s"
% tb)
else:
stats = {}
meta = []
for singleRes in resultsRaw:
meta.append(singleRes[1])
res = TimeSeriesResults(results=results,
meta=meta,
stats=stats,
computeOptions=computeOptions)
return res
def calc(self, computeOptions, **args):
minLat = computeOptions.get_min_lat()
maxLat = computeOptions.get_max_lat()
minLon = computeOptions.get_min_lon()
maxLon = computeOptions.get_max_lon()
ds = computeOptions.get_dataset()
startTime = computeOptions.get_start_time()
endTime = computeOptions.get_end_time()
resolution = computeOptions.get_decimal_arg("res", default=1.0)
if not len(ds) == 2:
raise Exception("Requires two datasets for comparison. Specify request parameter ds=Dataset_1,Dataset_2")
ds1tiles = self._tile_service.find_tiles_in_polygon(box(minLon, minLat, maxLon, maxLat), ds[0], startTime,
endTime)
ds2tiles = self._tile_service.find_tiles_in_polygon(box(minLon, minLat, maxLon, maxLat), ds[1], startTime,
endTime)
matches = self._match_tiles(ds1tiles, ds2tiles)
if len(matches) == 0:
raise NexusProcessingException(reason="Could not find any data temporally co-located")
results = [[{
'cnt': 0,
'slope': 0,
'intercept': 0,
'r': 0,
'p': 0,
'stderr': 0,
'lat': float(lat),
'lon': float(lon)
} for lon in np.arange(minLon, maxLon, resolution)] for lat in
np.arange(minLat, maxLat, resolution)]
for stats in results:
for stat in stats:
values_x = []
values_y = []
for tile_matches in matches:
tile_1_list = tile_matches[0]
value_1 = get_approximate_value_for_lat_lon(tile_1_list, stat["lat"], stat["lon"])
tile_2_list = tile_matches[1]
value_2 = get_approximate_value_for_lat_lon(tile_2_list, stat["lat"], stat["lon"])
if not (math.isnan(value_1) or math.isnan(value_2)):
values_x.append(value_1)
values_y.append(value_2)
if len(values_x) > 2 and len(values_y) > 2:
stats = linregress(values_x, values_y)
stat["slope"] = stats[0] if not math.isnan(stats[0]) and not math.isinf(stats[0]) else str(stats[0])
stat["intercept"] = stats[1] if not math.isnan(stats[1]) and not math.isinf(stats[1]) else str(
stats[1])
stat["r"] = stats[2] if not math.isnan(stats[2]) and not math.isinf(stats[2]) else str(stats[2])
stat["p"] = stats[3] if not math.isnan(stats[3]) and not math.isinf(stats[3]) else str(stats[3])
stat["stderr"] = stats[4] if not math.isnan(stats[4]) and not math.isinf(stats[4]) else str(
stats[4])
stat["cnt"] = len(values_x)
return CorrelationResults(results)
def parse_arguments(self, request):
# Parse input arguments
self.log.debug("Parsing arguments")
try:
ds = request.get_dataset()
if type(ds) == list or type(ds) == tuple:
ds = next(iter(ds))
except:
raise NexusProcessingException(
reason="'ds' argument is required. Must be a string", code=400)
# Do not allow time series on Climatology
if next(iter([clim for clim in ds if 'CLIM' in clim]), False):
raise NexusProcessingException(
reason=
"Cannot compute Latitude/Longitude Time Average plot on a climatology",
code=400)
try:
bounding_polygon = request.get_bounding_polygon()
request.get_min_lon = lambda: bounding_polygon.bounds[0]
request.get_min_lat = lambda: bounding_polygon.bounds[1]
request.get_max_lon = lambda: bounding_polygon.bounds[2]
request.get_max_lat = lambda: bounding_polygon.bounds[3]
except:
try:
west, south, east, north = request.get_min_lon(), request.get_min_lat(), \
request.get_max_lon(), request.get_max_lat()
bounding_polygon = shapely.geometry.Polygon([(west, south),
(east, south),
(east, north),
(west, north),
(west, south)])
except:
raise NexusProcessingException(
reason=
"'b' argument is required. Must be comma-delimited float formatted as "
"Minimum (Western) Longitude, Minimum (Southern) Latitude, "
"Maximum (Eastern) Longitude, Maximum (Northern) Latitude",
code=400)
try:
start_time = request.get_start_datetime()
except:
raise NexusProcessingException(
reason=
"'startTime' argument is required. Can be int value seconds from epoch or "
"string format YYYY-MM-DDTHH:mm:ssZ",
code=400)
try:
end_time = request.get_end_datetime()
except:
raise NexusProcessingException(
reason=
"'endTime' argument is required. Can be int value seconds from epoch or "
"string format YYYY-MM-DDTHH:mm:ssZ",
code=400)
if start_time > end_time:
raise NexusProcessingException(
reason=
"The starting time must be before the ending time. Received startTime: %s, endTime: %s"
% (request.get_start_datetime().strftime(ISO_8601),
request.get_end_datetime().strftime(ISO_8601)),
code=400)
start_seconds_from_epoch = int((start_time - EPOCH).total_seconds())
end_seconds_from_epoch = int((end_time - EPOCH).total_seconds())
normalize_dates = request.get_normalize_dates()
return ds, bounding_polygon, start_seconds_from_epoch, end_seconds_from_epoch, normalize_dates
def parse_arguments(self, request):
# Parse input arguments
self.log.debug("Parsing arguments")
try:
bounding_polygon = request.get_bounding_polygon()
except:
raise NexusProcessingException(
reason=
"'b' argument is required. Must be comma-delimited float formatted as Minimum (Western) Longitude, Minimum (Southern) Latitude, Maximum (Eastern) Longitude, Maximum (Northern) Latitude",
code=400)
primary_ds_name = request.get_argument('primary', None)
if primary_ds_name is None:
raise NexusProcessingException(
reason="'primary' argument is required", code=400)
matchup_ds_names = request.get_argument('matchup', None)
if matchup_ds_names is None:
raise NexusProcessingException(
reason="'matchup' argument is required", code=400)
parameter_s = request.get_argument('parameter', 'sst')
if parameter_s not in ['sst', 'sss', 'wind']:
raise NexusProcessingException(
reason=
"Parameter %s not supported. Must be one of 'sst', 'sss', 'wind'."
% parameter_s,
code=400)
try:
start_time = request.get_start_datetime()
except:
raise NexusProcessingException(
reason=
"'startTime' argument is required. Can be int value seconds from epoch or string format YYYY-MM-DDTHH:mm:ssZ",
code=400)
try:
end_time = request.get_end_datetime()
except:
raise NexusProcessingException(
reason=
"'endTime' argument is required. Can be int value seconds from epoch or string format YYYY-MM-DDTHH:mm:ssZ",
code=400)
if start_time > end_time:
raise NexusProcessingException(
reason=
"The starting time must be before the ending time. Received startTime: %s, endTime: %s"
% (request.get_start_datetime().strftime(ISO_8601),
request.get_end_datetime().strftime(ISO_8601)),
code=400)
depth_min = request.get_decimal_arg('depthMin', default=None)
depth_max = request.get_decimal_arg('depthMax', default=None)
if depth_min is not None and depth_max is not None and depth_min >= depth_max:
raise NexusProcessingException(
reason="Depth Min should be less than Depth Max", code=400)
time_tolerance = request.get_int_arg('tt', default=86400)
radius_tolerance = request.get_decimal_arg('rt', default=1000.0)
platforms = request.get_argument('platforms', None)
if platforms is None:
raise NexusProcessingException(
reason="'platforms' argument is required", code=400)
try:
p_validation = platforms.split(',')
p_validation = [int(p) for p in p_validation]
del p_validation
except:
raise NexusProcessingException(
reason="platforms must be a comma-delimited list of integers",
code=400)
match_once = request.get_boolean_arg("matchOnce", default=False)
result_size_limit = request.get_int_arg("resultSizeLimit", default=500)
start_seconds_from_epoch = long((start_time - EPOCH).total_seconds())
end_seconds_from_epoch = long((end_time - EPOCH).total_seconds())
return bounding_polygon, primary_ds_name, matchup_ds_names, parameter_s, \
start_time, start_seconds_from_epoch, end_time, end_seconds_from_epoch, \
depth_min, depth_max, time_tolerance, radius_tolerance, \
platforms, match_once, result_size_limit
def getTimeSeriesStatsForBoxSingleDataSet(self, bounding_polygon, ds, start_seconds_from_epoch,
end_seconds_from_epoch,
apply_seasonal_cycle_filter=True, apply_low_pass_filter=True):
the_time = datetime.now()
daysinrange = self._get_tile_service().find_days_in_range_asc(bounding_polygon.bounds[1],
bounding_polygon.bounds[3],
bounding_polygon.bounds[0],
bounding_polygon.bounds[2],
ds,
start_seconds_from_epoch,
end_seconds_from_epoch)
logger.info("Finding days in range took %s for dataset %s" % (str(datetime.now() - the_time), ds))
if len(daysinrange) == 0:
raise NoDataException(reason="No data found for selected timeframe")
the_time = datetime.now()
maxprocesses = int(self.algorithm_config.get("multiprocessing", "maxprocesses"))
results = []
if maxprocesses == 1:
calculator = TimeSeriesCalculator()
for dayinseconds in daysinrange:
result = calculator.calc_average_on_day(bounding_polygon.wkt, ds, dayinseconds)
results += [result] if result else []
else:
# Create a task to calc average difference for each day
manager = Manager()
work_queue = manager.Queue()
done_queue = manager.Queue()
for dayinseconds in daysinrange:
work_queue.put(
('calc_average_on_day', bounding_polygon.wkt, ds, dayinseconds))
[work_queue.put(SENTINEL) for _ in range(0, maxprocesses)]
# Start new processes to handle the work
pool = Pool(maxprocesses)
[pool.apply_async(pool_worker, (work_queue, done_queue)) for _ in range(0, maxprocesses)]
pool.close()
# Collect the results as [(day (in ms), average difference for that day)]
for i in range(0, len(daysinrange)):
result = done_queue.get()
try:
error_str = result['error']
logger.error(error_str)
raise NexusProcessingException(reason="Error calculating average by day.")
except KeyError:
pass
results += [result] if result else []
pool.terminate()
manager.shutdown()
results = sorted(results, key=lambda entry: entry["time"])
logger.info("Time series calculation took %s for dataset %s" % (str(datetime.now() - the_time), ds))
if apply_seasonal_cycle_filter:
the_time = datetime.now()
for result in results:
month = datetime.utcfromtimestamp(result['time']).month
month_mean, month_max, month_min = self.calculate_monthly_average(month, bounding_polygon.wkt, ds)
seasonal_mean = result['mean'] - month_mean
seasonal_min = result['min'] - month_min
seasonal_max = result['max'] - month_max
result['meanSeasonal'] = seasonal_mean
result['minSeasonal'] = seasonal_min
result['maxSeasonal'] = seasonal_max
logger.info(
"Seasonal calculation took %s for dataset %s" % (str(datetime.now() - the_time), ds))
the_time = datetime.now()
filtering.applyAllFiltersOnField(results, 'mean', applySeasonal=False, applyLowPass=apply_low_pass_filter)
filtering.applyAllFiltersOnField(results, 'max', applySeasonal=False, applyLowPass=apply_low_pass_filter)
filtering.applyAllFiltersOnField(results, 'min', applySeasonal=False, applyLowPass=apply_low_pass_filter)
if apply_seasonal_cycle_filter and apply_low_pass_filter:
try:
filtering.applyFiltersOnField(results, 'meanSeasonal', applySeasonal=False, applyLowPass=True,
append="LowPass")
filtering.applyFiltersOnField(results, 'minSeasonal', applySeasonal=False, applyLowPass=True,
append="LowPass")
filtering.applyFiltersOnField(results, 'maxSeasonal', applySeasonal=False, applyLowPass=True,
append="LowPass")
except Exception as e:
# If it doesn't work log the error but ignore it
tb = traceback.format_exc()
logger.warn("Error calculating SeasonalLowPass filter:\n%s" % tb)
logger.info(
"LowPass filter calculation took %s for dataset %s" % (str(datetime.now() - the_time), ds))
return results, {}
def calc(self, computeOptions, **args):
spark_master, spark_nexecs, spark_nparts = computeOptions.get_spark_cfg(
)
self._setQueryParams(computeOptions.get_dataset(),
(float(computeOptions.get_min_lat()),
float(computeOptions.get_max_lat()),
float(computeOptions.get_min_lon()),
float(computeOptions.get_max_lon())),
computeOptions.get_start_time(),
computeOptions.get_end_time(),
spark_master=spark_master,
spark_nexecs=spark_nexecs,
spark_nparts=spark_nparts)
self.log.debug('ds = {0}'.format(self._ds))
if not len(self._ds) == 2:
raise NexusProcessingException(
reason=
"Requires two datasets for comparison. Specify request parameter ds=Dataset_1,Dataset_2",
code=400)
if next(iter([clim for clim in self._ds if 'CLIM' in clim]), False):
raise NexusProcessingException(
reason="Cannot compute correlation on a climatology", code=400)
nexus_tiles = self._find_global_tile_set()
# print 'tiles:'
# for tile in nexus_tiles:
# print tile.granule
# print tile.section_spec
# print 'lat:', tile.latitudes
# print 'lon:', tile.longitudes
# nexus_tiles)
if len(nexus_tiles) == 0:
raise NoDataException(
reason="No data found for selected timeframe")
self.log.debug('Found {0} tiles'.format(len(nexus_tiles)))
self.log.debug(
'Using Native resolution: lat_res={0}, lon_res={1}'.format(
self._latRes, self._lonRes))
nlats = int((self._maxLat - self._minLatCent) / self._latRes) + 1
nlons = int((self._maxLon - self._minLonCent) / self._lonRes) + 1
self.log.debug('nlats={0}, nlons={1}'.format(nlats, nlons))
# Create array of tuples to pass to Spark map function
nexus_tiles_spark = [[
self._find_tile_bounds(t), self._startTime, self._endTime, self._ds
] for t in nexus_tiles]
# Remove empty tiles (should have bounds set to None)
bad_tile_inds = np.where([t[0] is None for t in nexus_tiles_spark])[0]
for i in np.flipud(bad_tile_inds):
del nexus_tiles_spark[i]
# Expand Spark map tuple array by duplicating each entry N times,
# where N is the number of ways we want the time dimension carved up.
num_time_parts = 72
# num_time_parts = 2
# num_time_parts = 1
nexus_tiles_spark = np.repeat(nexus_tiles_spark,
num_time_parts,
axis=0)
self.log.debug('repeated len(nexus_tiles_spark) = {0}'.format(
len(nexus_tiles_spark)))
# Set the time boundaries for each of the Spark map tuples.
# Every Nth element in the array gets the same time bounds.
spark_part_times = np.linspace(self._startTime,
self._endTime + 1,
num_time_parts + 1,
dtype=np.int64)
spark_part_time_ranges = \
np.repeat([[[spark_part_times[i],
spark_part_times[i + 1] - 1] for i in range(num_time_parts)]],
len(nexus_tiles_spark) / num_time_parts, axis=0).reshape((len(nexus_tiles_spark), 2))
self.log.debug(
'spark_part_time_ranges={0}'.format(spark_part_time_ranges))
nexus_tiles_spark[:, 1:3] = spark_part_time_ranges
# print 'nexus_tiles_spark final = '
# for i in range(len(nexus_tiles_spark)):
# print nexus_tiles_spark[i]
# Launch Spark computations
# print 'nexus_tiles_spark=',nexus_tiles_spark
rdd = self._sc.parallelize(nexus_tiles_spark, self._spark_nparts)
sum_tiles_part = rdd.map(self._map)
# print "sum_tiles_part = ",sum_tiles_part.collect()
sum_tiles = \
sum_tiles_part.combineByKey(lambda val: val,
lambda x, val: (x[0] + val[0],
x[1] + val[1],
x[2] + val[2],
x[3] + val[3],
x[4] + val[4],
x[5] + val[5]),
lambda x, y: (x[0] + y[0],
x[1] + y[1],
x[2] + y[2],
x[3] + y[3],
x[4] + y[4],
x[5] + y[5]))
# Convert the N (pixel-wise count) array for each tile to be a
# NumPy masked array. That is the last array in the tuple of
# intermediate summation arrays. Set mask to True if count is 0.
sum_tiles = \
sum_tiles.map(lambda (bounds, (sum_x, sum_y, sum_xx,
sum_yy, sum_xy, n)):
(bounds, (sum_x, sum_y, sum_xx, sum_yy, sum_xy,
np.ma.array(n,
mask=~(n.astype(bool))))))
# print 'sum_tiles = ',sum_tiles.collect()
# For each pixel in each tile compute an array of Pearson
# correlation coefficients. The map function is called once
# per tile. The result of this map operation is a list of 3-tuples of
# (bounds, r, n) for each tile (r=Pearson correlation coefficient
# and n=number of input values that went into each pixel with
# any masked values not included).
corr_tiles = \
sum_tiles.map(lambda (bounds, (sum_x, sum_y, sum_xx, sum_yy,
sum_xy, n)):
(bounds,
np.ma.array(((sum_xy - sum_x * sum_y / n) /
np.sqrt((sum_xx - sum_x * sum_x / n) *
(sum_yy - sum_y * sum_y / n))),
mask=~(n.astype(bool))),
n)).collect()
r = np.zeros((nlats, nlons), dtype=np.float64, order='C')
n = np.zeros((nlats, nlons), dtype=np.uint32, order='C')
# The tiles below are NOT Nexus objects. They are tuples
# with the following for each correlation map subset:
# (1) lat-lon bounding box, (2) array of correlation r values,
# and (3) array of count n values.
for tile in corr_tiles:
((tile_min_lat, tile_max_lat, tile_min_lon, tile_max_lon),
tile_data, tile_cnt) = tile
y0 = self._lat2ind(tile_min_lat)
y1 = self._lat2ind(tile_max_lat)
x0 = self._lon2ind(tile_min_lon)
x1 = self._lon2ind(tile_max_lon)
self.log.debug(
'writing tile lat {0}-{1}, lon {2}-{3}, map y {4}-{5}, map x {6}-{7}'
.format(tile_min_lat, tile_max_lat, tile_min_lon, tile_max_lon,
y0, y1, x0, x1))
r[y0:y1 + 1, x0:x1 + 1] = tile_data
n[y0:y1 + 1, x0:x1 + 1] = tile_cnt
# Store global map in a NetCDF file.
self._create_nc_file(r, 'corrmap.nc', 'r')
# Create dict for JSON response
results = [[{
'r': r[y, x],
'cnt': int(n[y, x]),
'lat': self._ind2lat(y),
'lon': self._ind2lon(x)
} for x in range(r.shape[1])] for y in range(r.shape[0])]
return CorrelationResults(results)
def calc(self, request, **args):
start = datetime.utcnow()
# TODO Assuming Satellite primary
bounding_polygon, primary_ds_name, matchup_ds_names, parameter_s, \
start_time, start_seconds_from_epoch, end_time, end_seconds_from_epoch, \
depth_min, depth_max, time_tolerance, radius_tolerance, \
platforms, match_once, result_size_limit = self.parse_arguments(request)
with ResultsStorage() as resultsStorage:
execution_id = str(
resultsStorage.insertExecution(None, start, None, None))
self.log.debug("Querying for tiles in search domain")
# Get tile ids in box
tile_ids = [
tile.tile_id for tile in self._tile_service.find_tiles_in_polygon(
bounding_polygon,
primary_ds_name,
start_seconds_from_epoch,
end_seconds_from_epoch,
fetch_data=False,
fl='id',
sort=[
'tile_min_time_dt asc', 'tile_min_lon asc',
'tile_min_lat asc'
],
rows=5000)
]
# Call spark_matchup
self.log.debug("Calling Spark Driver")
try:
spark_result = spark_matchup_driver(tile_ids,
wkt.dumps(bounding_polygon),
primary_ds_name,
matchup_ds_names,
parameter_s,
depth_min,
depth_max,
time_tolerance,
radius_tolerance,
platforms,
match_once,
sc=self._sc)
except Exception as e:
self.log.exception(e)
raise NexusProcessingException(
reason="An unknown error occurred while computing matches",
code=500)
end = datetime.utcnow()
self.log.debug("Building and saving results")
args = {
"primary": primary_ds_name,
"matchup": matchup_ds_names,
"startTime": start_time,
"endTime": end_time,
"bbox": request.get_argument('b'),
"timeTolerance": time_tolerance,
"radiusTolerance": float(radius_tolerance),
"platforms": platforms,
"parameter": parameter_s
}
if depth_min is not None:
args["depthMin"] = float(depth_min)
if depth_max is not None:
args["depthMax"] = float(depth_max)
total_keys = len(spark_result.keys())
total_values = sum(len(v) for v in spark_result.itervalues())
details = {
"timeToComplete": int((end - start).total_seconds()),
"numInSituRecords": 0,
"numInSituMatched": total_values,
"numGriddedChecked": 0,
"numGriddedMatched": total_keys
}
matches = Matchup.convert_to_matches(spark_result)
def do_result_insert():
with ResultsStorage() as storage:
storage.insertResults(results=matches,
params=args,
stats=details,
startTime=start,
completeTime=end,
userEmail="",
execution_id=execution_id)
threading.Thread(target=do_result_insert).start()
if 0 < result_size_limit < len(matches):
result = DomsQueryResults(results=None,
args=args,
details=details,
bounds=None,
count=None,
computeOptions=None,
executionId=execution_id,
status_code=202)
else:
result = DomsQueryResults(results=matches,
args=args,
details=details,
bounds=None,
count=None,
computeOptions=None,
executionId=execution_id)
return result
def calc(self, request, **args):
"""
:param request: StatsComputeOptions
:param args: dict
:return:
"""
start_time = datetime.now()
ds, bounding_polygon, start_seconds_from_epoch, end_seconds_from_epoch, apply_seasonal_cycle_filter, apply_low_pass_filter, nparts_requested, normalize_dates = self.parse_arguments(
request)
metrics_record = self._create_metrics_record()
resultsRaw = []
for shortName in ds:
the_time = datetime.now()
daysinrange = self._get_tile_service().find_days_in_range_asc(
bounding_polygon.bounds[1],
bounding_polygon.bounds[3],
bounding_polygon.bounds[0],
bounding_polygon.bounds[2],
shortName,
start_seconds_from_epoch,
end_seconds_from_epoch,
metrics_callback=metrics_record.record_metrics)
self.log.info("Finding days in range took %s for dataset %s" %
(str(datetime.now() - the_time), shortName))
ndays = len(daysinrange)
if ndays == 0:
raise NoDataException(
reason="No data found for selected timeframe")
self.log.debug('Found {0} days in range'.format(ndays))
for i, d in enumerate(daysinrange):
self.log.debug('{0}, {1}'.format(i,
datetime.utcfromtimestamp(d)))
spark_nparts = self._spark_nparts(nparts_requested)
self.log.info('Using {} partitions'.format(spark_nparts))
results, meta = spark_driver(daysinrange,
bounding_polygon,
shortName,
self._tile_service_factory,
metrics_record.record_metrics,
normalize_dates,
spark_nparts=spark_nparts,
sc=self._sc)
if apply_seasonal_cycle_filter:
the_time = datetime.now()
# get time series for _clim dataset
shortName_clim = shortName + "_clim"
daysinrange_clim = self._get_tile_service(
).find_days_in_range_asc(
bounding_polygon.bounds[1],
bounding_polygon.bounds[3],
bounding_polygon.bounds[0],
bounding_polygon.bounds[2],
shortName_clim,
0,
SECONDS_IN_ONE_YEAR,
metrics_callback=metrics_record.record_metrics)
if len(daysinrange_clim) == 0:
raise NexusProcessingException(
reason=
"There is no climatology data present for dataset " +
shortName + ".")
results_clim, _ = spark_driver(daysinrange_clim,
bounding_polygon,
shortName_clim,
self._tile_service_factory,
metrics_record.record_metrics,
normalize_dates=False,
spark_nparts=spark_nparts,
sc=self._sc)
clim_indexed_by_month = {
datetime.utcfromtimestamp(result['time']).month: result
for result in results_clim
}
if len(clim_indexed_by_month) < 12:
raise NexusProcessingException(
reason="There are only " + len(clim_indexed_by_month) +
" months of climatology data for dataset " +
shortName +
". A full year of climatology data is required for computing deseasoned timeseries."
)
for result in results:
month = datetime.utcfromtimestamp(result['time']).month
result['meanSeasonal'] = result[
'mean'] - clim_indexed_by_month[month]['mean']
result['minSeasonal'] = result[
'min'] - clim_indexed_by_month[month]['min']
result['maxSeasonal'] = result[
'max'] - clim_indexed_by_month[month]['max']
self.log.info("Seasonal calculation took %s for dataset %s" %
(str(datetime.now() - the_time), shortName))
the_time = datetime.now()
filtering.applyAllFiltersOnField(
results,
'mean',
applySeasonal=False,
applyLowPass=apply_low_pass_filter)
filtering.applyAllFiltersOnField(
results,
'max',
applySeasonal=False,
applyLowPass=apply_low_pass_filter)
filtering.applyAllFiltersOnField(
results,
'min',
applySeasonal=False,
applyLowPass=apply_low_pass_filter)
if apply_seasonal_cycle_filter and apply_low_pass_filter:
try:
filtering.applyFiltersOnField(results,
'meanSeasonal',
applySeasonal=False,
applyLowPass=True,
append="LowPass")
filtering.applyFiltersOnField(results,
'minSeasonal',
applySeasonal=False,
applyLowPass=True,
append="LowPass")
filtering.applyFiltersOnField(results,
'maxSeasonal',
applySeasonal=False,
applyLowPass=True,
append="LowPass")
except Exception as e:
# If it doesn't work log the error but ignore it
tb = traceback.format_exc()
self.log.warn(
"Error calculating SeasonalLowPass filter:\n%s" % tb)
resultsRaw.append([results, meta])
self.log.info("LowPass filter calculation took %s for dataset %s" %
(str(datetime.now() - the_time), shortName))
the_time = datetime.now()
self._create_nc_file_time1d(np.array(results),
'ts.nc',
'mean',
fill=-9999.)
self.log.info("NetCDF generation took %s for dataset %s" %
(str(datetime.now() - the_time), shortName))
the_time = datetime.now()
results = self._mergeResults(resultsRaw)
if len(ds) == 2:
try:
stats = TimeSeriesSparkHandlerImpl.calculate_comparison_stats(
results)
except Exception:
stats = {}
tb = traceback.format_exc()
self.log.warn("Error when calculating comparison stats:\n%s" %
tb)
else:
stats = {}
meta = []
for singleRes in resultsRaw:
meta.append(singleRes[1])
res = TimeSeriesResults(results=results,
meta=meta,
stats=stats,
computeOptions=None,
minLat=bounding_polygon.bounds[1],
maxLat=bounding_polygon.bounds[3],
minLon=bounding_polygon.bounds[0],
maxLon=bounding_polygon.bounds[2],
ds=ds,
startTime=start_seconds_from_epoch,
endTime=end_seconds_from_epoch)
total_duration = (datetime.now() - start_time).total_seconds()
metrics_record.record_metrics(actual_time=total_duration)
metrics_record.print_metrics(logger)
self.log.info("Merging results and calculating comparisons took %s" %
(str(datetime.now() - the_time)))
return res