def importFilesIntoDB(self, xmrgDir, deleteDataFiles):
try:
outputFile = None
#Get a list of the files in the import dir.
fileList = os.listdir(xmrgDir)
fileList.sort()
if(self.outputFilename):
#Add starting date-ending date to file name.
xmrg = xmrgFile()
#Convert into Eastern time.
eastern = timezone('UTC')
estDate = eastern.localize(datetime.datetime.strptime(xmrg.getCollectionDateFromFilename(fileList[0]), "%Y-%m-%dT%H:%M:%S"))
startDate = estDate.astimezone(timezone('US/Eastern')).strftime("%Y-%m-%dT%H:%M:%S")
estDate = eastern.localize(datetime.datetime.strptime(xmrg.getCollectionDateFromFilename(fileList[-1]), "%Y-%m-%dT%H:%M:%S"))
endDate = estDate.astimezone(timezone('US/Eastern')).strftime("%Y-%m-%dT%H:%M:%S")
startDate = startDate.replace(':', '_')
endDate = endDate.replace(':', '_')
nameSubs = {"start" : startDate, "end" : endDate }
filename = self.outputFilename % (nameSubs)
outputFile = open(filename, "w")
if(self.logger != None):
self.logger.debug("Output file: %s opened" % (filename))
outputFile.write("Start Time, End Time, Weighted Average\n")
for fileName in fileList:
fullPath = "%s/%s" %(xmrgDir,fileName)
#Make sure we are trying to import a file and not a directory.
if(os.path.isfile(fullPath) != True):
self.logger.debug("%s is not a file, skipping" % (fullPath))
continue
xmrg = xmrgFile("nexrad_proc_logger")
xmrg.openFile(fullPath)
if( xmrg.readFileHeader() ):
if(self.logger != None):
self.logger.debug( "File Origin: X %d Y: %d Columns: %d Rows: %d" %(xmrg.XOR,xmrg.YOR,xmrg.MAXX,xmrg.MAXY))
if(xmrg.readAllRows()):
if(self.outputFilename):
self.processData(xmrg, outputFile)
if(self.shapefilePath):
self.writeShapefile(xmrg)
else:
if(self.logger != None):
self.logger.error("Unable to read rows all rows in from file.")
if(deleteDataFiles):
xmrg.cleanUp(True,True)
else:
xmrg.cleanUp(True,False)
xmrg.xmrgFile.close()
else:
self.logger.error("Unable to process: %s" %(fileName))
outputFile.close()
except Exception, E:
if(self.logger != None):
self.logger.exception(E)
def writeLatLonDB(self, fileName, dbFile, minLatLong=None, maxLatLong=None,db=None):
#DWR 2012-10-29
retVal = True
if(self.logger != None):
self.logger.debug("writeLatLonDB File: %s BBOX: %f,%f %f,%f"\
%(fileName,minLatLong.latitude,minLatLong.longitude,maxLatLong.latitude,maxLatLong.longitude))
#Database connection not supplied, so create it.
if(db == None):
db = dhecDB(dbFile, self.configSettings.loggerName)
if(self.logger != None):
self.logger.debug("Loading spatialite: %s" %(self.configSettings.spatiaLiteLib))
if(db.loadSpatiaLiteLib(self.configSettings.spatiaLiteLib) == False):
if(self.logger != None):
self.logger.debug("Error loading: %s Error: %s" %(self.configSettings.spatiaLiteLib,db.lastErrorMsg))
xmrg = xmrgFile( self.configSettings.loggerName )
xmrg.openFile( fileName )
if( xmrg.readFileHeader() ):
self.logger.debug( "File Origin: X %d Y: %d Columns: %d Rows: %d" %(xmrg.XOR,xmrg.YOR,xmrg.MAXX,xmrg.MAXY))
try:
if( xmrg.readAllRows() ):
#This is the database insert datetime.
datetime = time.strftime( "%Y-%m-%dT%H:%M:%S", time.localtime() )
#Parse the filename to get the data time.
(directory,filetime) = os.path.split( xmrg.fileName )
(filetime,ext) = os.path.splitext( filetime )
filetime = self.getCollectionDateFromFilename(filetime)
#In the binary file, the data is stored as hundreths of mm, if we want to write the data as
#inches , need to divide by 2540.
dataConvert = 100.0
dataConvert = 25.4 * dataConvert
#Flag to specifiy if any non 0 values were found. No need processing the weighted averages
#below if nothing found.
rainDataFound=False
#If we are using a bounding box, let's get the row/col in hrap coords.
llHrap = None
urHrap = None
startCol = 0
startRow = 0
if( minLatLong != None and maxLatLong != None ):
llHrap = xmrg.latLongToHRAP(minLatLong,True,True)
urHrap = xmrg.latLongToHRAP(maxLatLong,True,True)
startCol = llHrap.column
startRow = llHrap.row
recsAdded = 0
for row in range(startRow,xmrg.MAXY):
for col in range(startCol,xmrg.MAXX):
val = xmrg.grid[row][col]
#If there is no precipitation value, or the value is erroneous
if( val <= 0 ):
if(self.saveAllPrecipVals):
val = 0
else:
continue
else:
val /= dataConvert
hrap = hrapCoord( xmrg.XOR + col, xmrg.YOR + row )
latlon = xmrg.hrapCoordToLatLong( hrap )
latlon.longitude *= -1
insertSQL = False
if( minLatLong != None and maxLatLong != None ):
if( xmrg.inBBOX( latlon, minLatLong, maxLatLong ) ):
insertSQL = True
else:
insertSQL = True
if( insertSQL ):
rainDataFound = True
#Build polygon points. Each grid point represents a 4km square, so we want to create a polygon
#that has each point in the grid for a given point.
hrapNewPt = hrapCoord( xmrg.XOR + col, xmrg.YOR + row + 1)
latlonUL = xmrg.hrapCoordToLatLong( hrapNewPt )
latlonUL.longitude *= -1
hrapNewPt = hrapCoord( xmrg.XOR + col + 1, xmrg.YOR + row)
latlonBR = xmrg.hrapCoordToLatLong( hrapNewPt )
latlonBR.longitude *= -1
hrapNewPt = hrapCoord( xmrg.XOR + col + 1, xmrg.YOR + row + 1)
latlonUR = xmrg.hrapCoordToLatLong( hrapNewPt )
latlonUR.longitude *= -1
wkt = "POLYGON((%f %f,%f %f,%f %f,%f %f,%f %f))"\
%(latlon.longitude, latlon.latitude,
latlonUL.longitude, latlonUL.latitude,
latlonUR.longitude, latlonUR.latitude,
latlonBR.longitude, latlonBR.latitude,
latlon.longitude, latlon.latitude,
)
#wkt = "POINT(%f %f)" %(latlon.longitude, latlon.latitude)
sql = "INSERT INTO precipitation_radar \
(insert_date,collection_date,latitude,longitude,precipitation,geom) \
VALUES('%s','%s',%f,%f,%f,GeomFromText('%s',4326));" \
%( datetime,filetime,latlon.latitude,latlon.longitude,val,wkt)
cursor = db.executeQuery( sql )
#Problem with the query, since we are working with transactions, we have to rollback.
if( cursor == None ):
self.logger.error( db.lastErrorMsg )
db.lastErrorMsg = None
db.DB.rollback()
recsAdded += 1
#Commit the inserts.
db.commit()
if( self.logger != None ):
self.logger.info( "Processed: %d rows. Added: %d records to database." %((row + 1),recsAdded))
else:
print( 'Processed %d rows. Added: %d records to database.' % (row + 1),recsAdded )
#NOw calc the weighted averages for the watersheds and add the measurements to the multi-obs table
if(rainDataFound and self.calcWeightedAvg):
self.calculateWeightedAverages(filetime,filetime,db,True)
else:
i = 0
except Exception, E:
self.lastErrorMsg = str(E)
if(self.logger != None):
self.logger.exception(E)
else:
print(traceback.print_exc())
#DWR 2012-10-29
retVal = False
#DWR 2012-10-29
#Move the deletion of the file to a member function so child classes can control.
xmrg.xmrgFile.close()
xmrg.cleanUp(self.deleteSourceFile,self.deleteCompressedSourceFile)
return(retVal)
def writeShapefile(self, fileName, minLatLong=None, maxLatLong=None):
import osgeo.ogr
import osgeo.osr
#DWR 2012-10-29
retVal = True
xmrg = xmrgFile( self.configSettings.loggerName )
xmrg.openFile( fileName )
if( xmrg.readFileHeader() ):
self.logger.debug( "File Origin: X %d Y: %d Columns: %d Rows: %d" %(xmrg.XOR,xmrg.YOR,xmrg.MAXX,xmrg.MAXY))
try:
if( xmrg.readAllRows() ):
spatialReference = osgeo.osr.SpatialReference()
spatialReference.ImportFromProj4('+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs')
driver = osgeo.ogr.GetDriverByName('ESRI Shapefile')
#This is the database insert datetime.
datetime = time.strftime( "%Y-%m-%dT%H:%M:%S", time.localtime() )
#Parse the filename to get the data time.
(directory,filetime) = os.path.split( xmrg.fileName )
(filetime,ext) = os.path.splitext( filetime )
#Check to see if any of the shapefile files exist, if so delete them otherwise
#we can't create the shapefile.
shapeFilename = '%s/%s.shp' %(self.shapefileDir,filetime)
if(os.path.exists(shapeFilename)):
os.remove(shapeFilename)
shapeData = driver.CreateDataSource(shapeFilename)
if(shapeData == None):
self.logger.error("Unable to create shapefile: %s" %(shapeData))
return
layer = shapeData.CreateLayer("xmrg", spatialReference, osgeo.ogr.wkbPolygon)
# create a field for the precipitation value.
fieldDefn = osgeo.ogr.FieldDefn('FID', osgeo.ogr.OFTInteger)
# add the field to the shapefile
layer.CreateField(fieldDefn)
# create a field for the precipitation value.
fieldDefn = osgeo.ogr.FieldDefn('precip', osgeo.ogr.OFTReal)
# add the field to the shapefile
layer.CreateField(fieldDefn)
fieldDefn = osgeo.ogr.FieldDefn('latitude', osgeo.ogr.OFTReal)
# add the field to the shapefile
layer.CreateField(fieldDefn)
fieldDefn = osgeo.ogr.FieldDefn('longitude', osgeo.ogr.OFTReal)
# add the field to the shapefile
layer.CreateField(fieldDefn)
fieldDefn = osgeo.ogr.FieldDefn('HRAPX', osgeo.ogr.OFTInteger)
# add the field to the shapefile
layer.CreateField(fieldDefn)
fieldDefn = osgeo.ogr.FieldDefn('HRAPY', osgeo.ogr.OFTInteger)
# add the field to the shapefile
layer.CreateField(fieldDefn)
layerDefinition = layer.GetLayerDefn()
"""
#Let's get rid of the xmrg verbage so we have the time remaining.
#The format for the time on these files is MMDDYYY sometimes a trailing z for
#the UTC time zone. 24 hour files don't have the z, or an hour
filetime = filetime.replace('24hrxmrg', '')
filetime = filetime.replace('xmrg', '')
dateformat = "%m%d%Y%Hz"
if( filetime.rfind( 'z' ) == -1 ):
dateformat = "%m%d%Y"
#The XMRG time is UTC, however we want to store all our times as localtimes.
isdst = time.localtime()[-1]
offset = 0
if (isdst):
offset = 4 * 3600
else:
offset = 5 * 3600
#Using mktime() and localtime() is a hack. The time package in python doesn't have a way
#to convert a struct_time in UTC to epoch secs. So I just use the local time functions to do what
#I want instead of brining in the calender package which has the conversion.
secs = time.mktime(time.strptime( filetime, dateformat ))
secs -= offset
filetime = time.strftime( "%Y-%m-%dT%H:00:00", time.localtime(secs) )
"""
filetime = self.getCollectionDateFromFilename(filetime)
#In the binary file, the data is stored as hundreths of mm, if we want to write the data as
#inches , need to divide by 2540.
dataConvert = 100.0
dataConvert = 25.4 * dataConvert
#If we are using a bounding box, let's get the row/col in hrap coords.
llHrap = None
urHrap = None
startCol = 0
startRow = 0
if( minLatLong != None and maxLatLong != None ):
llHrap = xmrg.latLongToHRAP(minLatLong,True,True)
urHrap = xmrg.latLongToHRAP(maxLatLong,True,True)
startCol = llHrap.column
startRow = llHrap.row
recsAdded = 0
featureId = 0
for row in range(startRow,xmrg.MAXY):
for col in range(startCol,xmrg.MAXX):
val = xmrg.grid[row][col]
#If there is no precipitation value, or the value is erroneous
if( val <= 0 ):
if(self.saveAllPrecipVals):
val = 0
else:
continue
else:
val /= dataConvert
hrap = hrapCoord( xmrg.XOR + col, xmrg.YOR + row )
latlon = xmrg.hrapCoordToLatLong( hrap )
latlon.longitude *= -1
insertSQL = False
if( minLatLong != None and maxLatLong != None ):
if( xmrg.inBBOX( latlon, minLatLong, maxLatLong ) ):
insertSQL = True
else:
insertSQL = True
if( insertSQL ):
#Build polygon points. Each grid point represents a 4km square, so we want to create a polygon
#that has each point in the grid for a given point.
hrapNewPt = hrapCoord( xmrg.XOR + col, xmrg.YOR + row + 1)
latlonUL = xmrg.hrapCoordToLatLong( hrapNewPt )
latlonUL.longitude *= -1
hrapNewPt = hrapCoord( xmrg.XOR + col + 1, xmrg.YOR + row)
latlonBR = xmrg.hrapCoordToLatLong( hrapNewPt )
latlonBR.longitude *= -1
hrapNewPt = hrapCoord( xmrg.XOR + col + 1, xmrg.YOR + row + 1)
latlonUR = xmrg.hrapCoordToLatLong( hrapNewPt )
latlonUR.longitude *= -1
# Create ring for polygon
ring = osgeo.ogr.Geometry(osgeo.ogr.wkbLinearRing)
polygon = osgeo.ogr.Geometry(osgeo.ogr.wkbPolygon)
#polygon.ImportFromWkt(wkt)
ring.AddPoint(latlon.longitude, latlon.latitude)
ring.AddPoint(latlonUL.longitude, latlonUL.latitude)
ring.AddPoint(latlonUR.longitude, latlonUR.latitude)
ring.AddPoint(latlonBR.longitude, latlonBR.latitude)
ring.AddPoint(latlonBR.longitude, latlonBR.latitude)
polygon.AddGeometry(ring)
# Create feature
feature = osgeo.ogr.Feature(layerDefinition)
feature.SetGeometry(polygon)
#feature.SetFID(featureId)
feature.SetField('FID', featureId)
feature.SetField('precip', val)
feature.SetField('latitude', latlon.latitude)
feature.SetField('longitude', latlon.longitude)
feature.SetField('HRAPX', hrap.column)
feature.SetField('HRAPY', hrap.row)
# Save feature
layer.CreateFeature(feature)
featureId += 1
except Exception, E:
self.lastErrorMsg = str(E)
if(self.logger != None):
self.logger.exception(E)
else:
print(traceback.print_exc())
#DWR 2012-10-29
retVal = False
#DWR 2012-10-29
#Move the deletion of the file to a member function so child classes can control.
xmrg.xmrgFile.close()
xmrg.cleanUp(self.deleteSourceFile,self.deleteCompressedSourceFile)
return(retVal)
)
#nexrad_db_conn.db_connection.isolation_level = None
nexrad_db_conn.db_connection.execute("PRAGMA synchronous = OFF")
nexrad_db_conn.db_connection.execute("PRAGMA journal_mode = MEMORY")
except Exception,e:
if logger:
logger.exception(e)
else:
for xmrg_filename in iter(inputQueue.get, 'STOP'):
tot_file_time_start = time.time()
if logger:
logger.debug("ID: %s processing file: %s" % (current_process().name, xmrg_filename))
xmrg_proc_obj = wqXMRGProcessing(logger=False)
xmrg = xmrgFile(current_process().name)
xmrg.openFile(xmrg_filename)
#Data store in hundreths of mm, we want mm, so convert.
dataConvert = 100.0
if xmrg.readFileHeader():
if logger:
logger.debug("ID: %s File Origin: X %d Y: %d Columns: %d Rows: %d" %(current_process().name, xmrg.XOR,xmrg.YOR,xmrg.MAXX,xmrg.MAXY))
try:
read_rows_start = time.time()
if xmrg.readAllRows():
if logger:
logger.debug("ID: %s(%f secs) to read all rows in file: %s" % (current_process().name, time.time() - read_rows_start, xmrg_filename))
#This is the database insert datetime.
#Parse the filename to get the data time.
