| [959eb01] | 1 | """ |
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| 2 | Thread handler used to load data |
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| 3 | """ |
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| 4 | import time |
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| 5 | from sas.sascalc.data_util.calcthread import CalcThread |
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| 6 | from sas.sascalc.dataloader.loader import Loader |
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| 7 | |
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| 8 | class DataReader(CalcThread): |
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| 9 | """ |
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| 10 | Load a data given a filename |
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| 11 | """ |
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| 12 | def __init__(self, path, completefn=None, |
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| 13 | updatefn=None, |
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| 14 | yieldtime=0.01, |
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| 15 | worktime=0.01 |
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| 16 | ): |
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| 17 | CalcThread.__init__(self, completefn, |
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| 18 | updatefn, |
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| 19 | yieldtime, |
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| 20 | worktime) |
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| 21 | self.path = path |
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| 22 | #Instantiate a loader |
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| 23 | self.loader = Loader() |
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| 24 | self.starttime = 0 |
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| 25 | |
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| 26 | def isquit(self): |
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| 27 | """ |
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| 28 | @raise KeyboardInterrupt: when the thread is interrupted |
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| 29 | """ |
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| 30 | try: |
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| 31 | CalcThread.isquit(self) |
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| 32 | except KeyboardInterrupt: |
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| 33 | raise KeyboardInterrupt |
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| 34 | |
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| 35 | |
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| 36 | def compute(self): |
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| 37 | """ |
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| 38 | read some data |
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| 39 | """ |
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| 40 | self.starttime = time.time() |
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| 41 | try: |
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| 42 | data = self.loader.load(self.path) |
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| 43 | self.complete(data=data) |
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| 44 | except KeyboardInterrupt: |
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| 45 | # Thread was interrupted, just proceed and re-raise. |
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| 46 | # Real code should not print, but this is an example... |
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| 47 | raise |
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| 48 | |
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| 49 | class GenReader(CalcThread): |
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| 50 | """ |
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| 51 | Load a sld data given a filename |
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| 52 | """ |
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| 53 | def __init__(self, path, loader, |
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| 54 | completefn=None, |
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| 55 | updatefn=None, |
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| 56 | yieldtime=0.01, |
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| 57 | worktime=0.01 |
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| 58 | ): |
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| 59 | CalcThread.__init__(self, completefn, |
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| 60 | updatefn, |
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| 61 | yieldtime, |
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| 62 | worktime) |
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| 63 | self.path = path |
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| 64 | #Instantiate a loader |
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| 65 | self.loader = loader |
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| 66 | self.starttime = 0 |
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| 67 | |
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| 68 | def isquit(self): |
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| 69 | """ |
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| 70 | @raise KeyboardInterrupt: when the thread is interrupted |
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| 71 | """ |
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| 72 | try: |
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| 73 | CalcThread.isquit(self) |
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| 74 | except KeyboardInterrupt: |
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| 75 | raise KeyboardInterrupt |
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| 76 | |
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| 77 | |
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| 78 | def compute(self): |
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| 79 | """ |
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| 80 | read some data |
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| 81 | """ |
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| 82 | self.starttime = time.time() |
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| 83 | try: |
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| 84 | data = self.loader.read(self.path) |
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| 85 | self.complete(data=data) |
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| 86 | except: |
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| 87 | # Thread was interrupted, just proceed and re-raise. |
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| 88 | # Real code should not print, but this is an example... |
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| 89 | raise |
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