119 lines
No EOL
4.7 KiB
Python
119 lines
No EOL
4.7 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 reference 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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# 06JUL2012 15153 zhao retrieve latest Metar for MetarMonitor & PersistMonitor
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# 16JUL2012 14655 zhao fixed a problem that occurs when there is no Metar
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# record within a selected number of hours
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#
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#
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##
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# This is a base file that is not intended to be overridden.
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##
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class RefTimePointDataRetrieve(PointDataRetrieve.PointDataRetrieve):
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def __init__(self, pluginName, site, parameters, keyId='forecastHr', refTime=None, constraint={}, maxSize=99):
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super(RefTimePointDataRetrieve, self).__init__(pluginName, site, parameters, keyId, refTime, constraint, maxSize)
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def _query(self, parameters, maxSize):
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times = self.__queryRefTimes()
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self.__javaPdc = self.__requestData(times, parameters, maxSize)
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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 __queryRefTimes(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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request = DbQueryRequest()
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request.setConstraints(self._buildConstraints(None))
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request.addRequestField('dataTime.refTime')
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request.setOrderByField('dataTime.refTime')
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request.setDistinct(True)
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response = ThriftClient.sendRequest(request).getResults()
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timeList = []
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for i in range(0,response.size()):
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timeList.append(response.get(i).get('dataTime.refTime'))
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return timeList
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def __requestData(self, availableTimes, parameters, maxSize):
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from com.raytheon.viz.pointdata import PointDataRequest
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from java.lang import String
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import jep
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from com.raytheon.uf.common.time import DataTime
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length = len(availableTimes)
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dts = jep.jarray(length,DataTime)
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if maxSize==0 : #DR15153: retrive latest Metar for Metarmonitor & PersistMonitor
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dts = jep.jarray(1,DataTime)
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dts[0] = DataTime(availableTimes[length-1])
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else : # for maxSize >= 1
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dts = self._createJarray(availableTimes, maxSize)
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if len(dts)==0 :
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dts = jep.jarray(1,DataTime)
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dts[0] = DataTime(availableTimes[length-1])
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constraints = self._buildConstraints(None) #times 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 _createJarray(self, availableTimes, maxSize):
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from com.raytheon.uf.common.time import DataTime
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import jep
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length = len(availableTimes)
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if maxSize > length:
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sz = length
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else:
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sz = maxSize
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dts = jep.jarray(sz, DataTime)
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for i in range(sz):
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dts[i] = DataTime(availableTimes[length-1-i])
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return dts
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def retrieve(pluginName, site, parameters, keyId='forecastHr', refTime=None, constraint={}, maxSize=99):
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ret = RefTimePointDataRetrieve(pluginName, site, parameters, keyId, refTime, constraint, maxSize)
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return ret.pdc
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