| 1 | import re
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| 2 |
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| 3 | import time
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| 4 | import datetime
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| 5 | import pytz
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| 6 |
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| 7 | from ....builtins import *
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| 8 |
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| 9 | from ...exceptions import *
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| 10 | from ...expressions import *
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| 11 | from ...autotype import *
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| 12 | from ...streams import *
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| 13 |
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| 14 | ##
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| 15 | ## bpmedialist has records separated by blank lines
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| 16 | ##
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| 17 | def stream(stream, format='bpmedialist -mlist'):
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| 18 |
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| 19 | if format in ['bpmedialist -mlist']:
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| 20 | return BlankLineStream(stream, header=2)
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| 21 | else:
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| 22 | raise ParseError, 'Unknown format %s' % (format)
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| 23 |
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| 24 |
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| 25 | ##
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| 26 | ## Parse a bpmedialist record
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| 27 | ##
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| 28 | ## bpmedialist -L
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| 29 | ##
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| 30 | def parse(record, format='bpmedialist -L', version=None, tz=None):
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| 31 |
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| 32 | re_pair = re.compile('^\s*([^:]+):\s*(.*)\s*$')
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| 33 | re_type_id = re.compile('^([0-9a-zA-Z\-_ ]+)\s+\((\d+)\)$')
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| 34 | re_unix_time_hack = re.compile('^.*\((\d+)\)$')
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| 35 | re_trailing_whitespace = re.compile('\s+$')
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| 36 |
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| 37 | media = ExtendedDict()
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| 38 | media['flags'] = ExtendedDict()
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| 39 |
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| 40 | if format == 'bpmedialist -L':
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| 41 |
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| 42 | try:
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| 43 |
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| 44 | for line in record:
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| 45 |
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| 46 | for pair in line.split(', '):
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| 47 |
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| 48 | key, value = pair.split(' = ')
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| 49 |
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| 50 | #
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| 51 | # convert text values to python datatypes
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| 52 | #
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| 53 | while True:
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| 54 |
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| 55 | if key in ['allocated', 'last_written', 'expiration', 'last_read']:
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| 56 | match = re_unix_time_hack.match(value)
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| 57 | value = datetime.datetime.fromtimestamp(float(match.group(1)), tz)
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| 58 | break
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| 59 |
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| 60 | if key in ['density']:
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| 61 | match = re_type_id.match(value)
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| 62 | idkey = '%s_id' % (key)
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| 63 | value = match.group(1)
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| 64 | media[idkey] = int(match.group(2))
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| 65 | break
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| 66 |
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| 67 | if key in ['status']:
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| 68 |
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| 69 | value = int(value, 16)
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| 70 | status = ExtendedDict()
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| 71 |
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| 72 | if value & 0x200 == 0x200:
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| 73 | media.flags.multiplexed = True
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| 74 | else:
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| 75 | media.flags.multiplexed = False
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| 76 |
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| 77 | if value & 0x080 == 0x080:
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| 78 | media.flags.imported = True
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| 79 | else:
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| 80 | media.flags.imported = False
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| 81 |
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| 82 | if value & 0x040 == 0x040:
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| 83 | media.flags.multiple_retention_levels = True
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| 84 | else:
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| 85 | media.flags.multiple_retention_levels = False
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| 86 |
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| 87 | if value & 0x008 == 0x008:
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| 88 | media.flags.full = True
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| 89 | else:
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| 90 | media.flags.full = False
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| 91 |
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| 92 | if value & 0x004 == 0x004:
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| 93 | media.flags.unreported = True
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| 94 | else:
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| 95 | media.flags.unreported = False
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| 96 |
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| 97 | if value & 0x002 == 0x002:
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| 98 | media.flags.suspended = True
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| 99 | else:
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| 100 | media.flags.suspended = False
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| 101 |
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| 102 | if value & 0x001 == 0x001:
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| 103 | media.flags.frozen = True
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| 104 | else:
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| 105 | media.flags.frozen = False
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| 106 |
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| 107 | if value & 0x000 == 0x000:
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| 108 | media.flags.active = True
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| 109 | else:
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| 110 | media.flags.active = False
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| 111 |
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| 112 | break
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| 113 |
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| 114 | if value in['*NULL*']:
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| 115 | value = None
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| 116 | break
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| 117 |
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| 118 | value = autotype(value)
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| 119 | break
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| 120 |
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| 121 | media[key] = value
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| 122 |
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| 123 | return media
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| 124 |
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| 125 | except Exception, e:
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| 126 |
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| 127 | for line in record:
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| 128 | print line
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| 129 |
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| 130 | raise ParseError, e
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| 131 |
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| 132 | else:
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| 133 |
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| 134 | raise ParseError, 'Unknown format %s' % (format)
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| 135 |
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