source: TI02-CSML/trunk/csml/API/ops_FileExtract.py @ 1939

''' ops_AbstractFileExtract  contains operations for AbstractFileExtracts'''
import csml.csmllibs.csmldataiface

def testmethod(self):
    print 'testmethod for AbstractFileExtract feature'
    return 'testmethod AbstractFileExtract'


def getData(self,  fileposition=None, times=None, **kwargs):
    #should handle setAxis or setVariable as cdms netcdf model
    #file position defines the position of the filename if a list of filenames exists
    #**kwargs can hold subsetting request.
    #print fileposition
    #print self.fileName
    
    #get the right file
    if fileposition is not None:
        file=self.fileName.CONTENT.split()[fileposition]
    else:
        file=self.fileName.CONTENT
    #open the file
    DI = csml.csmllibs.csmldataiface.DataInterface()
    DI=DI.getUnknownInterfaceType(file)
    DI.openFile(file)
    
    try:
        DI.setAxis(self.variableName.CONTENT)
        data=DI.getDataForAxis()
    except:
        DI.setVariable(self.variableName.CONTENT)
        if kwargs:
            #print 'getting data for %s'%kwargs
            data = DI.getSubsetOfDataForVar(**kwargs)
        else:
            data = DI.getDataForVar()
    DI.closeFile()
    return data
        
def __calendar(file,timedim):
    #open the file
    DI = csmldataiface.DataInterface()
    DI=DI.getUnknownInterfaceType(file)
    DI.openFile(file)
    DI.setAxis(timedim)
    cal=DI.getAxisAttribute('calendar')
    units=DI.getAxisAttribute('units')
    return cal, units