[33ea505] | 1 | from .errors import InvalidJobException, InvalidPrinterStateException, InvalidJobStateException |
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| 2 | from .job import GutenbachJob |
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[b01b6d1] | 3 | from gutenbach.ipp import PrinterStates as States |
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[b2e077a] | 4 | import gutenbach.ipp as ipp |
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| 5 | import logging |
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| 6 | import time |
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[eee389a] | 7 | import threading |
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| 8 | import heapq |
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| 9 | import traceback |
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| 10 | import sys |
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[cf0d7e8] | 11 | from . import sync |
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[eee389a] | 12 | |
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[d04a689] | 13 | |
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| 14 | # initialize logger |
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| 15 | logger = logging.getLogger(__name__) |
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[776a659] | 16 | |
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[eee389a] | 17 | class GutenbachPrinter(threading.Thread): |
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[b2e077a] | 18 | |
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[1a63bf7] | 19 | # for IPP |
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[33ea505] | 20 | printer_attributes = [ |
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[b2e077a] | 21 | "printer-uri-supported", |
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| 22 | "uri-authentication-supported", |
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| 23 | "uri-security-supported", |
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| 24 | "printer-name", |
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| 25 | "printer-state", |
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| 26 | "printer-state-reasons", |
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| 27 | "ipp-versions-supported", |
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| 28 | "operations-supported", |
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| 29 | "charset-configured", |
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| 30 | "charset-supported", |
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| 31 | "natural-language-configured", |
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| 32 | "generated-natural-language-supported", |
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| 33 | "document-format-default", |
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| 34 | "document-format-supported", |
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| 35 | "printer-is-accepting-jobs", |
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| 36 | "queued-job-count", |
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| 37 | "pdl-override-supported", |
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| 38 | "printer-up-time", |
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[f6e2532] | 39 | "compression-supported", |
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| 40 | "multiple-operation-time-out", |
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| 41 | "multiple-document-jobs-supported", |
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[1a63bf7] | 42 | ] |
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[b2e077a] | 43 | |
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[33ea505] | 44 | job_attributes = [ |
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| 45 | "job-id", |
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| 46 | "job-name", |
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| 47 | "job-originating-user-name", |
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| 48 | "job-k-octets", |
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| 49 | "job-state", |
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| 50 | "job-printer-uri" |
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| 51 | ] |
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| 52 | |
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[f6e2532] | 53 | operations = [ |
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| 54 | "print-job", |
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[33ea505] | 55 | "validate-job", |
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[f6e2532] | 56 | "get-jobs", |
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[33ea505] | 57 | "print-uri", |
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| 58 | "create-job", |
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| 59 | "pause-printer", |
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| 60 | "resume-printer", |
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| 61 | "get-printer-attributes", |
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| 62 | "set-printer-attributes", |
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| 63 | "cancel-job", |
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| 64 | "send-document", |
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| 65 | "send-uri", |
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| 66 | "get-job-attributes", |
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| 67 | "set-job-attributes", |
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| 68 | "restart-job", |
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| 69 | "promote-job" |
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[f6e2532] | 70 | ] |
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| 71 | |
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[609a9b0] | 72 | def __init__(self, name, config, *args, **kwargs): |
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[eee389a] | 73 | |
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[d21198f] | 74 | super(GutenbachPrinter, self).__init__(*args, **kwargs) |
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| 75 | |
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| 76 | self.name = name |
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[609a9b0] | 77 | self.config = config |
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[d21198f] | 78 | self.time_created = int(time.time()) |
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[b2e077a] | 79 | |
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[d21198f] | 80 | self.finished_jobs = [] |
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| 81 | self.pending_jobs = [] |
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| 82 | self.current_job = None |
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| 83 | self.jobs = {} |
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[b2e077a] | 84 | |
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[d21198f] | 85 | self.lock = threading.RLock() |
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| 86 | self.running = False |
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| 87 | self.paused = False |
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[776a659] | 88 | |
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[d21198f] | 89 | # CUPS ignores jobs with id 0, so we have to start at 1 |
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| 90 | self._next_job_id = 1 |
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[b01b6d1] | 91 | |
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| 92 | def __repr__(self): |
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| 93 | return str(self) |
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| 94 | |
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| 95 | def __str__(self): |
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| 96 | return "<Printer '%s'>" % self.name |
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| 97 | |
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[33ea505] | 98 | def run(self): |
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| 99 | self.running = True |
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| 100 | while self.running: |
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| 101 | with self.lock: |
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| 102 | try: |
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[fa3e2c6] | 103 | if not self.paused and self.current_job is None: |
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[33ea505] | 104 | self.start_job() |
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[345c476] | 105 | elif self.current_job.is_done: |
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[33ea505] | 106 | self.complete_job() |
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| 107 | except: |
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| 108 | logger.fatal(traceback.format_exc()) |
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| 109 | sys.exit(1) |
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| 110 | time.sleep(0.1) |
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| 111 | |
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[b01b6d1] | 112 | ###################################################################### |
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| 113 | ### Properties ### |
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| 114 | ###################################################################### |
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| 115 | |
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| 116 | @property |
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| 117 | def uris(self): |
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| 118 | uris = ["ipp://localhost:8000/printers/" + self.name, |
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| 119 | "ipp://localhost/printers/" + self.name] |
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| 120 | return uris |
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| 121 | |
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| 122 | @property |
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| 123 | def uri(self): |
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| 124 | return self.uris[0] |
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| 125 | |
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| 126 | @property |
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[cf0d7e8] | 127 | @sync |
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[eee389a] | 128 | def state(self): |
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[cf0d7e8] | 129 | if self.current_job is not None: |
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| 130 | return States.PROCESSING |
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| 131 | elif len(self.pending_jobs) == 0: |
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| 132 | return States.IDLE |
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| 133 | else: |
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| 134 | return States.STOPPED |
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[eee389a] | 135 | |
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| 136 | @property |
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[cf0d7e8] | 137 | @sync |
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[eee389a] | 138 | def active_jobs(self): |
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[cf0d7e8] | 139 | jobs = self.pending_jobs[:] |
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| 140 | if self.current_job is not None: |
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| 141 | jobs.insert(0, self.current_job.id) |
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[eee389a] | 142 | return jobs |
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[b01b6d1] | 143 | |
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| 144 | ###################################################################### |
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| 145 | ### Methods ### |
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| 146 | ###################################################################### |
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| 147 | |
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[cf0d7e8] | 148 | @sync |
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[eee389a] | 149 | def start_job(self): |
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[cf0d7e8] | 150 | if self.current_job is None: |
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| 151 | try: |
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| 152 | job_id = heapq.heappop(self.pending_jobs) |
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| 153 | self.current_job = self.get_job(job_id) |
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| 154 | self.current_job.play() |
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| 155 | except IndexError: |
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| 156 | self.current_job = None |
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| 157 | except InvalidJobStateException: |
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| 158 | heapq.heappush(self.pending_jobs, self.current_job.id) |
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| 159 | self.current_job = None |
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[eee389a] | 160 | |
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[cf0d7e8] | 161 | @sync |
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[eee389a] | 162 | def complete_job(self): |
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[cf0d7e8] | 163 | if self.current_job is None: |
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| 164 | return |
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[eee389a] | 165 | |
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[cf0d7e8] | 166 | try: |
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| 167 | if not self.current_job.is_done: |
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| 168 | self.current_job.stop() |
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| 169 | finally: |
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| 170 | self.finished_jobs.append(self.current_job.id) |
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| 171 | self.current_job = None |
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[1a63bf7] | 172 | |
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[cf0d7e8] | 173 | @sync |
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[eee389a] | 174 | def get_job(self, job_id): |
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[cf0d7e8] | 175 | if job_id not in self.jobs: |
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| 176 | raise InvalidJobException(job_id) |
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| 177 | return self.jobs[job_id] |
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[b01b6d1] | 178 | |
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| 179 | ###################################################################### |
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| 180 | ### IPP Attributes ### |
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| 181 | ###################################################################### |
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[1a63bf7] | 182 | |
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[b2e077a] | 183 | @property |
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| 184 | def printer_uri_supported(self): |
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[793432f] | 185 | return ipp.PrinterUriSupported(self.uri) |
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[9da7428] | 186 | @printer_uri_supported.setter |
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| 187 | def printer_uri_supported(self, val): |
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| 188 | raise ipp.errors.AttributesNotSettable("printer-uri-supported") |
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[1a63bf7] | 189 | |
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[b2e077a] | 190 | @property |
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| 191 | def uri_authentication_supported(self): |
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[793432f] | 192 | return ipp.UriAuthenticationSupported("none") |
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[9da7428] | 193 | @uri_authentication_supported.setter |
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| 194 | def uri_authentication_supported(self, val): |
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| 195 | raise ipp.errors.AttributesNotSettable("uri-authentication-supported") |
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[b2e077a] | 196 | |
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| 197 | @property |
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| 198 | def uri_security_supported(self): |
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[793432f] | 199 | return ipp.UriSecuritySupported("none") |
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[9da7428] | 200 | @uri_security_supported.setter |
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| 201 | def uri_security_supported(self, val): |
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| 202 | raise ipp.errors.AttributesNotSettable("uri-security-supported") |
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[b2e077a] | 203 | |
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| 204 | @property |
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| 205 | def printer_name(self): |
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[793432f] | 206 | return ipp.PrinterName(self.name) |
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[9da7428] | 207 | @printer_name.setter |
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| 208 | def printer_name(self, val): |
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| 209 | raise ipp.errors.AttributesNotSettable("printer-name") |
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[1a63bf7] | 210 | |
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[b2e077a] | 211 | @property |
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| 212 | def printer_state(self): |
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[b01b6d1] | 213 | return ipp.PrinterState(self.state) |
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[9da7428] | 214 | @printer_state.setter |
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| 215 | def printer_state(self, val): |
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| 216 | raise ipp.errors.AttributesNotSettable("printer-state") |
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[1a63bf7] | 217 | |
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[b2e077a] | 218 | @property |
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| 219 | def printer_state_reasons(self): |
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[793432f] | 220 | return ipp.PrinterStateReasons("none") |
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[9da7428] | 221 | @printer_state_reasons.setter |
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| 222 | def printer_state_reasons(self, val): |
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| 223 | raise ipp.errors.AttributesNotSettable("printer-state-reasons") |
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[b2e077a] | 224 | |
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| 225 | @property |
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| 226 | def ipp_versions_supported(self): |
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[609a9b0] | 227 | return ipp.IppVersionsSupported(*self.config['ipp-versions']) |
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[9da7428] | 228 | @ipp_versions_supported.setter |
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| 229 | def ipp_versions_supported(self, val): |
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| 230 | raise ipp.errors.AttributesNotSettable("ipp-versions-supported") |
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[1a63bf7] | 231 | |
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[f6e2532] | 232 | # XXX: We should query ourself for the supported operations |
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[b2e077a] | 233 | @property |
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| 234 | def operations_supported(self): |
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[793432f] | 235 | return ipp.OperationsSupported(ipp.OperationCodes.GET_JOBS) |
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[9da7428] | 236 | @operations_supported.setter |
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| 237 | def operations_supported(self, val): |
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| 238 | raise ipp.errors.AttributesNotSettable("operations-supported") |
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[b2e077a] | 239 | |
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| 240 | @property |
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| 241 | def charset_configured(self): |
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[9da7428] | 242 | return ipp.CharsetConfigured("utf-8") # XXX |
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| 243 | @charset_configured.setter |
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| 244 | def charset_configured(self, val): |
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| 245 | raise ipp.errors.AttributesNotSettable("charset-configured") |
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| 246 | |
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[b2e077a] | 247 | @property |
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| 248 | def charset_supported(self): |
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[9da7428] | 249 | return ipp.CharsetSupported("utf-8") # XXX |
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| 250 | @charset_supported.setter |
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| 251 | def charset_supported(self, val): |
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| 252 | raise ipp.errors.AttributesNotSettable("charset-supported") |
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[b2e077a] | 253 | |
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| 254 | @property |
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| 255 | def natural_language_configured(self): |
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[793432f] | 256 | return ipp.NaturalLanguageConfigured("en-us") |
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[9da7428] | 257 | @natural_language_configured.setter |
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| 258 | def natural_language_configured(self, val): |
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| 259 | raise ipp.errors.AttributesNotSettable("natural-language-configured") |
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[b2e077a] | 260 | |
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| 261 | @property |
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| 262 | def generated_natural_language_supported(self): |
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[793432f] | 263 | return ipp.GeneratedNaturalLanguageSupported("en-us") |
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[9da7428] | 264 | @generated_natural_language_supported.setter |
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| 265 | def generated_natural_language_supported(self, val): |
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| 266 | raise ipp.errors.AttributesNotSettable("generated-natural-language-supported") |
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[b2e077a] | 267 | |
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| 268 | @property |
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| 269 | def document_format_default(self): |
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[793432f] | 270 | return ipp.DocumentFormatDefault("application/octet-stream") |
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[9da7428] | 271 | @document_format_default.setter |
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| 272 | def document_format_default(self, val): |
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| 273 | raise ipp.errors.AttributesNotSettable("document-format-default") |
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[b2e077a] | 274 | |
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| 275 | @property |
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| 276 | def document_format_supported(self): |
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[793432f] | 277 | return ipp.DocumentFormatSupported("application/octet-stream", "audio/mp3") |
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[9da7428] | 278 | @document_format_supported.setter |
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| 279 | def document_format_supported(self, val): |
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| 280 | raise ipp.errors.AttributesNotSettable("document-format-supported") |
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[b2e077a] | 281 | |
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| 282 | @property |
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| 283 | def printer_is_accepting_jobs(self): |
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[793432f] | 284 | return ipp.PrinterIsAcceptingJobs(True) |
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[9da7428] | 285 | @printer_is_accepting_jobs.setter |
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| 286 | def printer_is_accepting_jobs(self, val): |
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| 287 | raise ipp.errors.AttributesNotSettable("printer-is-accepting-jobs") |
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[b2e077a] | 288 | |
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| 289 | @property |
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| 290 | def queued_job_count(self): |
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[793432f] | 291 | return ipp.QueuedJobCount(len(self.active_jobs)) |
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[9da7428] | 292 | @queued_job_count.setter |
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| 293 | def queued_job_count(self, val): |
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| 294 | raise ipp.errors.AttributesNotSettable("queued-job-count") |
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[b2e077a] | 295 | |
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| 296 | @property |
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| 297 | def pdl_override_supported(self): |
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[793432f] | 298 | return ipp.PdlOverrideSupported("not-attempted") |
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[9da7428] | 299 | @pdl_override_supported.setter |
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| 300 | def pdl_override_supported(self, val): |
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| 301 | raise ipp.errors.AttributesNotSettable("pdl-override-supported") |
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[b2e077a] | 302 | |
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| 303 | @property |
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| 304 | def printer_up_time(self): |
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[793432f] | 305 | return ipp.PrinterUpTime(int(time.time()) - self.time_created) |
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[9da7428] | 306 | @printer_up_time.setter |
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| 307 | def printer_up_time(self, val): |
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| 308 | raise ipp.errors.AttributesNotSettable("printer-up-time") |
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[b2e077a] | 309 | |
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| 310 | @property |
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| 311 | def compression_supported(self): |
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[793432f] | 312 | return ipp.CompressionSupported("none") |
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[9da7428] | 313 | @compression_supported.setter |
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| 314 | def compression_supported(self, val): |
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| 315 | raise ipp.errors.AttributesNotSettable("compression-supported") |
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[b2e077a] | 316 | |
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[f6e2532] | 317 | @property |
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| 318 | def multiple_operation_time_out(self): |
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[793432f] | 319 | return ipp.MultipleOperationTimeOut(240) |
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[9da7428] | 320 | @multiple_operation_time_out.setter |
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| 321 | def multiple_operation_time_out(self, val): |
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| 322 | raise ipp.errors.AttributesNotSettable("multiple-operation-time-out") |
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[f6e2532] | 323 | |
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| 324 | @property |
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| 325 | def multiple_document_jobs_supported(self): |
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[793432f] | 326 | return ipp.MultipleDocumentJobsSupported(False) |
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[9da7428] | 327 | @multiple_document_jobs_supported.setter |
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| 328 | def multiple_document_jobs_supported(self, val): |
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| 329 | raise ipp.errors.AttributesNotSettable("multiple-document-jobs-supported") |
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[f6e2532] | 330 | |
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[33ea505] | 331 | ###################################################################### |
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| 332 | ### Job IPP Attributes ### |
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| 333 | ###################################################################### |
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| 334 | |
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| 335 | def job_id(self, job_id): |
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| 336 | job = self.get_job(job_id) |
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| 337 | return ipp.JobId(job.id) |
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| 338 | |
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| 339 | def job_name(self, job_id): |
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| 340 | job = self.get_job(job_id) |
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| 341 | return ipp.JobName(job.name) |
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| 342 | |
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| 343 | def job_originating_user_name(self, job_id): |
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| 344 | job = self.get_job(job_id) |
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| 345 | return ipp.JobOriginatingUserName(job.creator) |
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| 346 | |
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| 347 | def job_k_octets(self, job_id): |
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| 348 | job = self.get_job(job_id) |
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| 349 | return ipp.JobKOctets(job.size) |
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| 350 | |
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| 351 | def job_state(self, job_id): |
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| 352 | job = self.get_job(job_id) |
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| 353 | return ipp.JobState(job.state) |
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| 354 | |
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| 355 | def job_printer_uri(self, job_id): |
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| 356 | job = self.get_job(job_id) |
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| 357 | return ipp.JobPrinterUri(self.uri) |
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[ee8e6d0] | 358 | |
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[b01b6d1] | 359 | ###################################################################### |
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| 360 | ### IPP Operations ### |
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| 361 | ###################################################################### |
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| 362 | |
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| 363 | def print_job(self): |
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| 364 | pass |
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| 365 | |
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| 366 | def validate_job(self): |
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| 367 | pass |
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| 368 | |
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[33ea505] | 369 | def get_jobs(self, requesting_user_name=None, which_jobs=None, |
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| 370 | requested_attributes=None): |
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| 371 | |
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[b01b6d1] | 372 | # Filter by the which-jobs attribute |
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| 373 | if which_jobs is None: |
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[34a4e5d] | 374 | which_jobs = "not-completed" |
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| 375 | |
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| 376 | if which_jobs == "completed": |
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[b01b6d1] | 377 | jobs = [self.jobs[job_id] for job_id in self.finished_jobs] |
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| 378 | elif which_jobs == "not-completed": |
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| 379 | jobs = [self.jobs[job_id] for job_id in self.active_jobs] |
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[ee8e6d0] | 380 | else: |
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[b01b6d1] | 381 | raise ipp.errors.ClientErrorAttributes( |
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| 382 | which_jobs, ipp.WhichJobs(which_jobs)) |
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[b2e077a] | 383 | |
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[b01b6d1] | 384 | # Filter by username |
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| 385 | if requesting_user_name is None: |
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| 386 | user_jobs = jobs |
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| 387 | else: |
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| 388 | user_jobs = [job for job in jobs if job.creator == requesting_user_name] |
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[33ea505] | 389 | |
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| 390 | # Get the attributes of each job |
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| 391 | job_attrs = [self.get_job_attributes( |
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| 392 | job.id, requested_attributes=requested_attributes) for job in user_jobs] |
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[ee8e6d0] | 393 | |
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[33ea505] | 394 | return job_attrs |
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[ee8e6d0] | 395 | |
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[b01b6d1] | 396 | def print_uri(self): |
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| 397 | pass |
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| 398 | |
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[190bfb4] | 399 | def create_job(self, requesting_user_name=None, job_name=None, job_k_octets=None): |
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[eee389a] | 400 | job_id = self._next_job_id |
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| 401 | self._next_job_id += 1 |
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[ee8e6d0] | 402 | |
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[33ea505] | 403 | job = GutenbachJob( |
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| 404 | job_id, |
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| 405 | creator=requesting_user_name, |
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| 406 | name=job_name) |
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[b01b6d1] | 407 | |
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[ee8e6d0] | 408 | self.jobs[job_id] = job |
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[eee389a] | 409 | self.pending_jobs.append(job_id) |
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[b01b6d1] | 410 | |
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[33ea505] | 411 | return job_id |
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[776a659] | 412 | |
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[fa3e2c6] | 413 | @sync |
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[b01b6d1] | 414 | def pause_printer(self): |
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[fa3e2c6] | 415 | """Pause the printer. |
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| 416 | |
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| 417 | Does nothing if the printer is already paused. |
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| 418 | """ |
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| 419 | if self.paused: |
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| 420 | return |
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| 421 | |
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| 422 | if self.current_job is not None and self.current_job.is_playing: |
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| 423 | self.current_job.pause() |
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| 424 | |
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| 425 | self.paused = True |
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| 426 | |
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| 427 | |
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[776a659] | 428 | |
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[fa3e2c6] | 429 | @sync |
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[b01b6d1] | 430 | def resume_printer(self): |
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[fa3e2c6] | 431 | """Resume the printer. |
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| 432 | |
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| 433 | Does nothing if the printer is not paused. |
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| 434 | """ |
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| 435 | if not self.paused: |
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| 436 | return |
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| 437 | |
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| 438 | if self.current_job is not None: |
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| 439 | self.current_job.resume() |
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| 440 | |
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| 441 | self.paused = False |
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[776a659] | 442 | |
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[b01b6d1] | 443 | def get_printer_attributes(self, requested_attributes=None): |
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| 444 | if requested_attributes is None: |
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[33ea505] | 445 | requested = self.printer_attributes |
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[e58af05] | 446 | else: |
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[33ea505] | 447 | requested = [a for a in self.printer_attributes \ |
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| 448 | if a in requested_attributes] |
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[b2e077a] | 449 | |
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[b01b6d1] | 450 | _attributes = [attr.replace("-", "_") for attr in requested] |
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| 451 | attributes = [getattr(self, attr) for attr in _attributes] |
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| 452 | return attributes |
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[776a659] | 453 | |
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[9da7428] | 454 | def set_printer_attributes(self, job_id, attributes): |
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| 455 | for attr in attributes: |
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| 456 | try: |
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| 457 | setattr(self, attr, attributes[attr]) |
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| 458 | except AttributeError: |
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| 459 | raise ipp.errors.ClientErrorAttributes |
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[33ea505] | 460 | |
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| 461 | def cancel_job(self, job_id, requesting_user_name=None): |
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| 462 | job = self.get_job(job_id) |
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| 463 | try: |
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| 464 | job.cancel() |
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| 465 | except InvalidJobStateException: |
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| 466 | # XXX |
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| 467 | raise |
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| 468 | |
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| 469 | def send_document(self, job_id, document, document_name=None, |
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| 470 | document_format=None, document_natural_language=None, |
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| 471 | requesting_user_name=None, compression=None, |
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| 472 | last_document=None): |
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| 473 | |
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| 474 | job = self.get_job(job_id) |
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[345c476] | 475 | job.spool(document) |
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[33ea505] | 476 | |
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[c1dc25f] | 477 | def send_uri(self, job_id, document_uri, document_name=None, |
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| 478 | document_format=None, document_natural_language=None, |
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| 479 | requesting_user_name=None, compression=None, |
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| 480 | last_document=None): |
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| 481 | job = self.get_job(job_id) |
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| 482 | # XXX: need to validate URI |
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| 483 | # XXX: need to deal with the URI stream? |
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| 484 | #job.spool_uri(document_uri) |
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[33ea505] | 485 | |
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| 486 | def get_job_attributes(self, job_id, requested_attributes=None): |
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| 487 | if requested_attributes is None: |
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| 488 | requested = self.job_attributes |
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| 489 | else: |
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| 490 | requested = [a for a in self.job_attributes \ |
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| 491 | if a in requested_attributes] |
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| 492 | |
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| 493 | _attributes = [attr.replace("-", "_") for attr in requested] |
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| 494 | attributes = [getattr(self, attr)(job_id) for attr in _attributes] |
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| 495 | return attributes |
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| 496 | |
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[9da7428] | 497 | def set_job_attributes(self, job_id, attributes): |
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| 498 | job = self.get_job(job_id) |
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| 499 | for attr in attributes: |
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| 500 | if attr in ("job-id", "job-k-octets", "job-state", "job-printer-uri"): |
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| 501 | raise ipp.errors.ClientErrorAttributesNotSettable(attr) |
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| 502 | elif attr == "job-name": |
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| 503 | job.name = attributes[attr] |
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| 504 | elif attr == "job-originating-user-name": |
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| 505 | job.creator = attributes[attr] # XXX: do we want this? |
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| 506 | |
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[c1cebbc] | 507 | def restart_job(self, job_id, requesting_user_name=None): |
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| 508 | job = self.get_job(job_id) |
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| 509 | try: |
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| 510 | job.restart() |
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| 511 | except InvalidJobStateException: |
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| 512 | # XXX |
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| 513 | raise ipp.errors.ClientErrorNotPossible |
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[33ea505] | 514 | |
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[c1cebbc] | 515 | with self.lock: |
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| 516 | self.finished_jobs.remove(job_id) |
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| 517 | self.pending_jobs.append(job_id) |
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[33ea505] | 518 | |
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[c1cebbc] | 519 | def promote_job(self, job_id, requesting_user_name=None): |
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[c500bc2] | 520 | # According to RFC 3998, we need to put the job at the front |
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| 521 | # of the queue (so that when the currently playing job |
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| 522 | # completes, this one will go next |
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| 523 | |
---|
| 524 | job = self.get_job(job_id) |
---|
| 525 | job.priority = 1 # XXX we need to actually do something |
---|
| 526 | # correct here |
---|