28575f2d5a
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89 lines
4 KiB
Python
89 lines
4 KiB
Python
##
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# This software was developed and / or modified by Raytheon Company,
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# pursuant to Contract DG133W-05-CQ-1067 with the US Government.
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#
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# U.S. EXPORT CONTROLLED TECHNICAL DATA
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# This software product contains export-restricted data whose
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# export/transfer/disclosure is restricted by U.S. law. Dissemination
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# to non-U.S. persons whether in the United States or abroad requires
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# an export license or other authorization.
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#
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# Contractor Name: Raytheon Company
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# Contractor Address: 6825 Pine Street, Suite 340
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# Mail Stop B8
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# Omaha, NE 68106
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# 402.291.0100
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#
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# See the AWIPS II Master Rights File ("Master Rights File.pdf") for
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# further licensing information.
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##
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import PointDataView, PointDataContainer, NoDataException, PointDataRetrieve
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#
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# Python module to request forecast time point data. Split out of
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# PointDataContainer.py.
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#
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#
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# SOFTWARE HISTORY
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#
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# Date Ticket# Engineer Description
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# ------------ ---------- ----------- --------------------------
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# 25Apr2012 14688 rferrel Initial Creation.
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# 03Apr2013 1735 rferrel Use DbQueryRequest to get forecast times
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# and added option to limit number returned.
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#
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#
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class ForecastPointDataRetrieve(PointDataRetrieve.PointDataRetrieve):
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def __init__(self, pluginName, site, parameters, keyId='forecastHr', refTime=None, constraint={}, maxSize=99, forecastTimesLimit=-999):
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self.forecastTimesLimit = forecastTimesLimit
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super(ForecastPointDataRetrieve, self).__init__(pluginName, site, parameters, keyId, refTime, constraint, maxSize)
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def _query(self, parameters, maxSize):
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fctTimes = self.__queryForecastTimes()
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self.__javaPdc = self.__requestForecastData(fctTimes, parameters)
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pdvDict = self._organizeData(self.__javaPdc)
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self.pdc = PointDataContainer.PointDataContainer(pdvDict, self.__javaPdc, self.refTime)
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def __queryForecastTimes(self):
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from com.raytheon.uf.common.dataquery.requests import DbQueryRequest
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from com.raytheon.uf.viz.core.requests import ThriftClient
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from java.lang import Integer
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request = DbQueryRequest()
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request.setConstraints(self._buildConstraints(self.refTime))
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request.addRequestField('dataTime.fcstTime')
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request.setOrderByField('dataTime.fcstTime')
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request.setDistinct(True)
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iForecastTimesLimit = Integer(self.forecastTimesLimit)
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if (self.forecastTimesLimit > 0) :
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request.setLimit(iForecastTimesLimit)
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return ThriftClient.sendRequest(request).getFieldObjects('dataTime.fcstTime', iForecastTimesLimit.getClass())
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def __requestForecastData(self, availableHours, parameters):
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from com.raytheon.viz.pointdata import PointDataRequest
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from com.raytheon.uf.common.time import DataTime
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from java.lang import String
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import jep
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dtsLen = len(availableHours)
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dts = jep.jarray(dtsLen, DataTime)
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for i in range(dtsLen):
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dts[i] = DataTime(self.refTime, availableHours[i].intValue())
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constraints = self._buildConstraints(None) #fctTimes are explicitly set so we don't need to constrain those
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params = jep.jarray(len(parameters), String)
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for i in range(len(parameters)):
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params[i] = String(parameters[i])
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if self.site:
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stations = jep.jarray(1, String)
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stations[0] = String(self.site)
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else:
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stations = None
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return PointDataRequest.requestPointData(dts,
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self.pluginName, params, stations,
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constraints)
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def retrieve(pluginName, site, parameters, keyId='forecastHr', refTime=None, constraint={}, maxSize=99, forecastTimesLimit=-999):
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ret = ForecastPointDataRetrieve(pluginName, site, parameters, keyId, refTime, constraint, maxSize, forecastTimesLimit)
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return ret.pdc
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