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