| 1 | # Module for the logging.
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| 2 |
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| 3 | #--------------------------------------------------------------------------------------
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| 4 |
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| 5 | import const
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| 6 |
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| 7 | import sys
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| 8 | import time
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| 9 |
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| 10 | #--------------------------------------------------------------------------------------
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| 11 |
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| 12 | class Logger(object):
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| 13 | """The class with the interface to log the various events."""
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| 14 | # FIXME: shall we use const.stage2string() instead?
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| 15 | _stages = { const.STAGE_BOARDING : "Boarding",
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| 16 | const.STAGE_PUSHANDTAXI : "Pushback and Taxi",
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| 17 | const.STAGE_TAKEOFF : "Takeoff",
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| 18 | const.STAGE_RTO : "RTO",
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| 19 | const.STAGE_CLIMB : "Climb",
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| 20 | const.STAGE_CRUISE : "Cruise",
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| 21 | const.STAGE_DESCENT : "Descent",
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| 22 | const.STAGE_LANDING : "Landing",
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| 23 | const.STAGE_TAXIAFTERLAND : "Taxi",
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| 24 | const.STAGE_PARKING : "Parking",
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| 25 | const.STAGE_GOAROUND : "Go-Around",
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| 26 | const.STAGE_END : "End" }
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| 27 |
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| 28 | _noGoScore = 10000
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| 29 |
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| 30 | def __init__(self, output = sys.stdout):
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| 31 | """Construct the logger."""
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| 32 | self._faults = {}
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| 33 | self._output = output
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| 34 |
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| 35 | @staticmethod
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| 36 | def _getTimeStr(timestamp):
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| 37 | """Get the string representation of the given timestamp."""
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| 38 | return time.strftime("%H:%M:%S", time.gmtime(timestamp))
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| 39 |
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| 40 | def message(self, timestamp, msg):
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| 41 | """Put a simple textual message into the log with the given timestamp."""
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| 42 | timeStr = Logger._getTimeStr(timestamp)
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| 43 | print >> self._output, timeStr + ":", msg
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| 44 | print timeStr + ":", msg
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| 45 |
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| 46 | def debug(self, msg):
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| 47 | """Log a debug message."""
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| 48 | print >> self._output, "[DEBUG] ", msg
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| 49 | print "[DEBUG]", msg
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| 50 |
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| 51 | def stage(self, timestamp, stage):
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| 52 | """Report a change in the flight stage."""
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| 53 | s = Logger._stages[stage] if stage in Logger._stages else "<Unknown>"
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| 54 | self.message(timestamp, "--- %s ---" % (s,))
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| 55 |
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| 56 | def fault(self, faultID, timestamp, what, score):
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| 57 | """Report a fault.
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| 58 |
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| 59 | faultID as a unique ID for the given kind of fault. If another fault of
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| 60 | this ID has been reported earlier, it will be reported again only if
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| 61 | the score is greater than last time. This ID can be, e.g. the checker
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| 62 | the report comes from."""
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| 63 | if faultID in self._faults:
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| 64 | if score<=self._faults[faultID]:
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| 65 | return
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| 66 | self._faults[faultID] = score
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| 67 | if score==Logger._noGoScore:
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| 68 | self.message(timestamp, "%s (NO GO)" % (what))
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| 69 | else:
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| 70 | self.message(timestamp, "%s (%f)" % (what, score))
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| 71 |
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| 72 | def noGo(self, faultID, timestamp, what, shortReason):
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| 73 | """Report a No-Go fault."""
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| 74 | self.fault(faultID, timestamp, what, Logger._noGoScore)
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| 75 |
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| 76 | #--------------------------------------------------------------------------------------
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