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'''
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'''
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import numpy
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from jroIO_base import LOCALTIME, JRODataReader, JRODataWriter
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from model.proc.jroproc_base import ProcessingUnit, Operation
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from model.data.jroheaderIO import PROCFLAG, BasicHeader, SystemHeader, RadarControllerHeader, ProcessingHeader
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from model.data.jrodata import Voltage
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class VoltageReader(JRODataReader, ProcessingUnit):
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"""
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Esta clase permite leer datos de voltage desde archivos en formato rawdata (.r). La lectura
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de los datos siempre se realiza por bloques. Los datos leidos (array de 3 dimensiones:
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perfiles*alturas*canales) son almacenados en la variable "buffer".
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perfiles * alturas * canales
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Esta clase contiene instancias (objetos) de las clases BasicHeader, SystemHeader,
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RadarControllerHeader y Voltage. Los tres primeros se usan para almacenar informacion de la
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cabecera de datos (metadata), y el cuarto (Voltage) para obtener y almacenar un perfil de
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datos desde el "buffer" cada vez que se ejecute el metodo "getData".
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Example:
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dpath = "/home/myuser/data"
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startTime = datetime.datetime(2010,1,20,0,0,0,0,0,0)
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endTime = datetime.datetime(2010,1,21,23,59,59,0,0,0)
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readerObj = VoltageReader()
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readerObj.setup(dpath, startTime, endTime)
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while(True):
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#to get one profile
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profile = readerObj.getData()
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#print the profile
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print profile
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#If you want to see all datablock
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print readerObj.datablock
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if readerObj.flagNoMoreFiles:
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break
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"""
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ext = ".r"
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optchar = "D"
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dataOut = None
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def __init__(self):
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"""
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Inicializador de la clase VoltageReader para la lectura de datos de voltage.
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Input:
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dataOut : Objeto de la clase Voltage. Este objeto sera utilizado para
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almacenar un perfil de datos cada vez que se haga un requerimiento
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(getData). El perfil sera obtenido a partir del buffer de datos,
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si el buffer esta vacio se hara un nuevo proceso de lectura de un
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bloque de datos.
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Si este parametro no es pasado se creara uno internamente.
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Variables afectadas:
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self.dataOut
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Return:
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None
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"""
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ProcessingUnit.__init__(self)
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self.isConfig = False
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self.datablock = None
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self.utc = 0
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self.ext = ".r"
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self.optchar = "D"
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self.basicHeaderObj = BasicHeader(LOCALTIME)
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self.systemHeaderObj = SystemHeader()
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self.radarControllerHeaderObj = RadarControllerHeader()
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self.processingHeaderObj = ProcessingHeader()
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self.online = 0
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self.fp = None
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self.idFile = None
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self.dtype = None
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self.fileSizeByHeader = None
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self.filenameList = []
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self.filename = None
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self.fileSize = None
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self.firstHeaderSize = 0
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self.basicHeaderSize = 24
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self.pathList = []
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self.filenameList = []
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self.lastUTTime = 0
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self.maxTimeStep = 30
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self.flagNoMoreFiles = 0
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self.set = 0
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self.path = None
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self.profileIndex = 2**32-1
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self.delay = 3 #seconds
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self.nTries = 3 #quantity tries
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self.nFiles = 3 #number of files for searching
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self.nReadBlocks = 0
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self.flagIsNewFile = 1
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self.__isFirstTimeOnline = 1
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# self.ippSeconds = 0
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self.flagTimeBlock = 0
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self.flagIsNewBlock = 0
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self.nTotalBlocks = 0
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self.blocksize = 0
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self.dataOut = self.createObjByDefault()
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self.nTxs = 1
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self.txIndex = 0
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def createObjByDefault(self):
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dataObj = Voltage()
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return dataObj
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def __hasNotDataInBuffer(self):
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if self.profileIndex >= self.processingHeaderObj.profilesPerBlock:
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return 1
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return 0
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def getBlockDimension(self):
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"""
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Obtiene la cantidad de puntos a leer por cada bloque de datos
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Affected:
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self.blocksize
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Return:
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None
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"""
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pts2read = self.processingHeaderObj.profilesPerBlock * self.processingHeaderObj.nHeights * self.systemHeaderObj.nChannels
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self.blocksize = pts2read
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def readBlock(self):
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"""
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readBlock lee el bloque de datos desde la posicion actual del puntero del archivo
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(self.fp) y actualiza todos los parametros relacionados al bloque de datos
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(metadata + data). La data leida es almacenada en el buffer y el contador del buffer
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es seteado a 0
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Inputs:
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None
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Return:
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None
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Affected:
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self.profileIndex
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self.datablock
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self.flagIsNewFile
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self.flagIsNewBlock
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self.nTotalBlocks
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Exceptions:
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Si un bloque leido no es un bloque valido
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"""
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current_pointer_location = self.fp.tell()
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junk = numpy.fromfile( self.fp, self.dtype, self.blocksize )
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try:
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junk = junk.reshape( (self.processingHeaderObj.profilesPerBlock, self.processingHeaderObj.nHeights, self.systemHeaderObj.nChannels) )
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except:
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#print "The read block (%3d) has not enough data" %self.nReadBlocks
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if self.waitDataBlock(pointer_location=current_pointer_location):
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junk = numpy.fromfile( self.fp, self.dtype, self.blocksize )
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junk = junk.reshape( (self.processingHeaderObj.profilesPerBlock, self.processingHeaderObj.nHeights, self.systemHeaderObj.nChannels) )
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# return 0
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junk = numpy.transpose(junk, (2,0,1))
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self.datablock = junk['real'] + junk['imag']*1j
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self.profileIndex = 0
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self.flagIsNewFile = 0
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self.flagIsNewBlock = 1
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self.nTotalBlocks += 1
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self.nReadBlocks += 1
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return 1
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def getFirstHeader(self):
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self.dataOut.systemHeaderObj = self.systemHeaderObj.copy()
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self.dataOut.radarControllerHeaderObj = self.radarControllerHeaderObj.copy()
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if self.nTxs > 1:
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self.dataOut.radarControllerHeaderObj.ippSeconds = self.radarControllerHeaderObj.ippSeconds/self.nTxs
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# self.dataOut.timeInterval = self.radarControllerHeaderObj.ippSeconds * self.processingHeaderObj.nCohInt
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if self.radarControllerHeaderObj.code != None:
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self.dataOut.nCode = self.radarControllerHeaderObj.nCode
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self.dataOut.nBaud = self.radarControllerHeaderObj.nBaud
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self.dataOut.code = self.radarControllerHeaderObj.code
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self.dataOut.dtype = self.dtype
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self.dataOut.nProfiles = self.processingHeaderObj.profilesPerBlock*self.nTxs
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if self.processingHeaderObj.nHeights % self.nTxs != 0:
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raise ValueError, "nTxs (%d) should be a multiple of nHeights (%d)" %(self.nTxs, self.processingHeaderObj.nHeights)
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xf = self.processingHeaderObj.firstHeight + int(self.processingHeaderObj.nHeights/self.nTxs)*self.processingHeaderObj.deltaHeight
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self.dataOut.heightList = numpy.arange(self.processingHeaderObj.firstHeight, xf, self.processingHeaderObj.deltaHeight)
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self.dataOut.channelList = range(self.systemHeaderObj.nChannels)
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self.dataOut.nCohInt = self.processingHeaderObj.nCohInt
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self.dataOut.flagShiftFFT = False
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self.dataOut.flagDecodeData = False #asumo q la data no esta decodificada
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self.dataOut.flagDeflipData = False #asumo q la data no esta sin flip
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self.dataOut.flagShiftFFT = False
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def getData(self):
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"""
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getData obtiene una unidad de datos del buffer de lectura, un perfil, y la copia al objeto self.dataOut
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del tipo "Voltage" con todos los parametros asociados a este (metadata). cuando no hay datos
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en el buffer de lectura es necesario hacer una nueva lectura de los bloques de datos usando
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"readNextBlock"
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Ademas incrementa el contador del buffer "self.profileIndex" en 1.
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Return:
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Si el flag self.getByBlock ha sido seteado el bloque completo es copiado a self.dataOut y el self.profileIndex
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es igual al total de perfiles leidos desde el archivo.
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Si self.getByBlock == False:
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self.dataOut.data = buffer[:, thisProfile, :]
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shape = [nChannels, nHeis]
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Si self.getByBlock == True:
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self.dataOut.data = buffer[:, :, :]
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shape = [nChannels, nProfiles, nHeis]
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Variables afectadas:
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self.dataOut
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self.profileIndex
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Affected:
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self.dataOut
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self.profileIndex
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self.flagTimeBlock
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self.flagIsNewBlock
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"""
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if self.flagNoMoreFiles:
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self.dataOut.flagNoData = True
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print 'Process finished'
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return 0
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self.flagTimeBlock = 0
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self.flagIsNewBlock = 0
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if self.__hasNotDataInBuffer():
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if not( self.readNextBlock() ):
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return 0
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self.getFirstHeader()
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if self.datablock == None:
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self.dataOut.flagNoData = True
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return 0
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if not self.getByBlock:
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"""
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Return profile by profile
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If nTxs > 1 then one profile is divided by nTxs and number of total
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blocks is increased by nTxs (nProfiles *= nTxs)
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"""
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if self.nTxs == 1:
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self.dataOut.flagDataAsBlock = False
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self.dataOut.data = self.datablock[:,self.profileIndex,:]
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self.dataOut.profileIndex = self.profileIndex
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self.profileIndex += 1
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else:
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self.dataOut.flagDataAsBlock = False
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iniHei_ForThisTx = (self.txIndex)*int(self.processingHeaderObj.nHeights/self.nTxs)
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endHei_ForThisTx = (self.txIndex+1)*int(self.processingHeaderObj.nHeights/self.nTxs)
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# print iniHei_ForThisTx, endHei_ForThisTx
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self.dataOut.data = self.datablock[:, self.profileIndex, iniHei_ForThisTx:endHei_ForThisTx]
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self.dataOut.profileIndex = self.profileIndex*self.nTxs + self.txIndex
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self.txIndex += 1
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if self.txIndex == self.nTxs:
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self.txIndex = 0
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self.profileIndex += 1
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else:
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"""
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Return all block
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"""
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self.dataOut.flagDataAsBlock = True
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self.dataOut.data = self.datablock
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self.dataOut.profileIndex = self.processingHeaderObj.profilesPerBlock - 1
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self.profileIndex = self.processingHeaderObj.profilesPerBlock - 1
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self.dataOut.flagNoData = False
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self.getBasicHeader()
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self.dataOut.realtime = self.online
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return self.dataOut.data
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|
|
class VoltageWriter(JRODataWriter, Operation):
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|
"""
|
|
|
Esta clase permite escribir datos de voltajes a archivos procesados (.r). La escritura
|
|
|
de los datos siempre se realiza por bloques.
|
|
|
"""
|
|
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|
|
|
ext = ".r"
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|
|
optchar = "D"
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shapeBuffer = None
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|
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def __init__(self):
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"""
|
|
|
Inicializador de la clase VoltageWriter para la escritura de datos de espectros.
|
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|
Affected:
|
|
|
self.dataOut
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|
Return: None
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|
"""
|
|
|
Operation.__init__(self)
|
|
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|
|
|
self.nTotalBlocks = 0
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|
|
self.profileIndex = 0
|
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|
|
self.isConfig = False
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|
|
self.fp = None
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|
|
self.flagIsNewFile = 1
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self.nTotalBlocks = 0
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self.flagIsNewBlock = 0
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|
self.setFile = None
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|
self.dtype = None
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|
|
self.path = None
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|
|
|
self.filename = None
|
|
|
|
|
|
self.basicHeaderObj = BasicHeader(LOCALTIME)
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|
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|
|
|
self.systemHeaderObj = SystemHeader()
|
|
|
|
|
|
self.radarControllerHeaderObj = RadarControllerHeader()
|
|
|
|
|
|
self.processingHeaderObj = ProcessingHeader()
|
|
|
|
|
|
def hasAllDataInBuffer(self):
|
|
|
if self.profileIndex >= self.processingHeaderObj.profilesPerBlock:
|
|
|
return 1
|
|
|
return 0
|
|
|
|
|
|
|
|
|
def setBlockDimension(self):
|
|
|
"""
|
|
|
Obtiene las formas dimensionales del los subbloques de datos que componen un bloque
|
|
|
|
|
|
Affected:
|
|
|
self.shape_spc_Buffer
|
|
|
self.shape_cspc_Buffer
|
|
|
self.shape_dc_Buffer
|
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|
|
|
|
Return: None
|
|
|
"""
|
|
|
self.shapeBuffer = (self.processingHeaderObj.profilesPerBlock,
|
|
|
self.processingHeaderObj.nHeights,
|
|
|
self.systemHeaderObj.nChannels)
|
|
|
|
|
|
self.datablock = numpy.zeros((self.systemHeaderObj.nChannels,
|
|
|
self.processingHeaderObj.profilesPerBlock,
|
|
|
self.processingHeaderObj.nHeights),
|
|
|
dtype=numpy.dtype('complex64'))
|
|
|
|
|
|
|
|
|
def writeBlock(self):
|
|
|
"""
|
|
|
Escribe el buffer en el file designado
|
|
|
|
|
|
Affected:
|
|
|
self.profileIndex
|
|
|
self.flagIsNewFile
|
|
|
self.flagIsNewBlock
|
|
|
self.nTotalBlocks
|
|
|
self.blockIndex
|
|
|
|
|
|
Return: None
|
|
|
"""
|
|
|
data = numpy.zeros( self.shapeBuffer, self.dtype )
|
|
|
|
|
|
junk = numpy.transpose(self.datablock, (1,2,0))
|
|
|
|
|
|
data['real'] = junk.real
|
|
|
data['imag'] = junk.imag
|
|
|
|
|
|
data = data.reshape( (-1) )
|
|
|
|
|
|
data.tofile( self.fp )
|
|
|
|
|
|
self.datablock.fill(0)
|
|
|
|
|
|
self.profileIndex = 0
|
|
|
self.flagIsNewFile = 0
|
|
|
self.flagIsNewBlock = 1
|
|
|
|
|
|
self.blockIndex += 1
|
|
|
self.nTotalBlocks += 1
|
|
|
|
|
|
def putData(self):
|
|
|
"""
|
|
|
Setea un bloque de datos y luego los escribe en un file
|
|
|
|
|
|
Affected:
|
|
|
self.flagIsNewBlock
|
|
|
self.profileIndex
|
|
|
|
|
|
Return:
|
|
|
0 : Si no hay data o no hay mas files que puedan escribirse
|
|
|
1 : Si se escribio la data de un bloque en un file
|
|
|
"""
|
|
|
if self.dataOut.flagNoData:
|
|
|
return 0
|
|
|
|
|
|
self.flagIsNewBlock = 0
|
|
|
|
|
|
if self.dataOut.flagTimeBlock:
|
|
|
|
|
|
self.datablock.fill(0)
|
|
|
self.profileIndex = 0
|
|
|
self.setNextFile()
|
|
|
|
|
|
if self.profileIndex == 0:
|
|
|
self.setBasicHeader()
|
|
|
|
|
|
self.datablock[:,self.profileIndex,:] = self.dataOut.data
|
|
|
|
|
|
self.profileIndex += 1
|
|
|
|
|
|
if self.hasAllDataInBuffer():
|
|
|
#if self.flagIsNewFile:
|
|
|
self.writeNextBlock()
|
|
|
# self.setFirstHeader()
|
|
|
|
|
|
return 1
|
|
|
|
|
|
def __getProcessFlags(self):
|
|
|
|
|
|
processFlags = 0
|
|
|
|
|
|
dtype0 = numpy.dtype([('real','<i1'),('imag','<i1')])
|
|
|
dtype1 = numpy.dtype([('real','<i2'),('imag','<i2')])
|
|
|
dtype2 = numpy.dtype([('real','<i4'),('imag','<i4')])
|
|
|
dtype3 = numpy.dtype([('real','<i8'),('imag','<i8')])
|
|
|
dtype4 = numpy.dtype([('real','<f4'),('imag','<f4')])
|
|
|
dtype5 = numpy.dtype([('real','<f8'),('imag','<f8')])
|
|
|
|
|
|
dtypeList = [dtype0, dtype1, dtype2, dtype3, dtype4, dtype5]
|
|
|
|
|
|
|
|
|
|
|
|
datatypeValueList = [PROCFLAG.DATATYPE_CHAR,
|
|
|
PROCFLAG.DATATYPE_SHORT,
|
|
|
PROCFLAG.DATATYPE_LONG,
|
|
|
PROCFLAG.DATATYPE_INT64,
|
|
|
PROCFLAG.DATATYPE_FLOAT,
|
|
|
PROCFLAG.DATATYPE_DOUBLE]
|
|
|
|
|
|
|
|
|
for index in range(len(dtypeList)):
|
|
|
if self.dataOut.dtype == dtypeList[index]:
|
|
|
dtypeValue = datatypeValueList[index]
|
|
|
break
|
|
|
|
|
|
processFlags += dtypeValue
|
|
|
|
|
|
if self.dataOut.flagDecodeData:
|
|
|
processFlags += PROCFLAG.DECODE_DATA
|
|
|
|
|
|
if self.dataOut.flagDeflipData:
|
|
|
processFlags += PROCFLAG.DEFLIP_DATA
|
|
|
|
|
|
if self.dataOut.code != None:
|
|
|
processFlags += PROCFLAG.DEFINE_PROCESS_CODE
|
|
|
|
|
|
if self.dataOut.nCohInt > 1:
|
|
|
processFlags += PROCFLAG.COHERENT_INTEGRATION
|
|
|
|
|
|
return processFlags
|
|
|
|
|
|
|
|
|
def __getBlockSize(self):
|
|
|
'''
|
|
|
Este metodos determina el cantidad de bytes para un bloque de datos de tipo Voltage
|
|
|
'''
|
|
|
|
|
|
dtype0 = numpy.dtype([('real','<i1'),('imag','<i1')])
|
|
|
dtype1 = numpy.dtype([('real','<i2'),('imag','<i2')])
|
|
|
dtype2 = numpy.dtype([('real','<i4'),('imag','<i4')])
|
|
|
dtype3 = numpy.dtype([('real','<i8'),('imag','<i8')])
|
|
|
dtype4 = numpy.dtype([('real','<f4'),('imag','<f4')])
|
|
|
dtype5 = numpy.dtype([('real','<f8'),('imag','<f8')])
|
|
|
|
|
|
dtypeList = [dtype0, dtype1, dtype2, dtype3, dtype4, dtype5]
|
|
|
datatypeValueList = [1,2,4,8,4,8]
|
|
|
for index in range(len(dtypeList)):
|
|
|
if self.dataOut.dtype == dtypeList[index]:
|
|
|
datatypeValue = datatypeValueList[index]
|
|
|
break
|
|
|
|
|
|
blocksize = int(self.dataOut.nHeights * self.dataOut.nChannels * self.profilesPerBlock * datatypeValue * 2)
|
|
|
|
|
|
return blocksize
|
|
|
|
|
|
def setFirstHeader(self):
|
|
|
|
|
|
"""
|
|
|
Obtiene una copia del First Header
|
|
|
|
|
|
Affected:
|
|
|
self.systemHeaderObj
|
|
|
self.radarControllerHeaderObj
|
|
|
self.dtype
|
|
|
|
|
|
Return:
|
|
|
None
|
|
|
"""
|
|
|
|
|
|
self.systemHeaderObj = self.dataOut.systemHeaderObj.copy()
|
|
|
self.systemHeaderObj.nChannels = self.dataOut.nChannels
|
|
|
self.radarControllerHeaderObj = self.dataOut.radarControllerHeaderObj.copy()
|
|
|
|
|
|
self.setBasicHeader()
|
|
|
|
|
|
processingHeaderSize = 40 # bytes
|
|
|
self.processingHeaderObj.dtype = 0 # Voltage
|
|
|
self.processingHeaderObj.blockSize = self.__getBlockSize()
|
|
|
self.processingHeaderObj.profilesPerBlock = self.profilesPerBlock
|
|
|
self.processingHeaderObj.dataBlocksPerFile = self.blocksPerFile
|
|
|
self.processingHeaderObj.nWindows = 1 #podria ser 1 o self.dataOut.processingHeaderObj.nWindows
|
|
|
self.processingHeaderObj.processFlags = self.__getProcessFlags()
|
|
|
self.processingHeaderObj.nCohInt = self.dataOut.nCohInt
|
|
|
self.processingHeaderObj.nIncohInt = 1 # Cuando la data de origen es de tipo Voltage
|
|
|
self.processingHeaderObj.totalSpectra = 0 # Cuando la data de origen es de tipo Voltage
|
|
|
|
|
|
# if self.dataOut.code != None:
|
|
|
# self.processingHeaderObj.code = self.dataOut.code
|
|
|
# self.processingHeaderObj.nCode = self.dataOut.nCode
|
|
|
# self.processingHeaderObj.nBaud = self.dataOut.nBaud
|
|
|
# codesize = int(8 + 4 * self.dataOut.nCode * self.dataOut.nBaud)
|
|
|
# processingHeaderSize += codesize
|
|
|
|
|
|
if self.processingHeaderObj.nWindows != 0:
|
|
|
self.processingHeaderObj.firstHeight = self.dataOut.heightList[0]
|
|
|
self.processingHeaderObj.deltaHeight = self.dataOut.heightList[1] - self.dataOut.heightList[0]
|
|
|
self.processingHeaderObj.nHeights = self.dataOut.nHeights
|
|
|
self.processingHeaderObj.samplesWin = self.dataOut.nHeights
|
|
|
processingHeaderSize += 12
|
|
|
|
|
|
self.processingHeaderObj.size = processingHeaderSize
|
