source: server/lib/gutenbach/server/job.py @ 5d24a81

no-cups
Last change on this file since 5d24a81 was 5d24a81, checked in by Jessica B. Hamrick <jhamrick@…>, 14 years ago

Fix bugs in Job and Printer

  • Property mode set to 100644
File size: 2.0 KB
Line 
1import os
2from exceptions import InvalidJobException, \
3     InvalidPrinterStateException
4
5class Job(object):
6
7    def __init__(self, document=None):
8        """Initialize a Gutenbach job.
9
10        This sets the status to 'initializing' and optionally sets the
11        document to print to the value of document.
12        """
13         
14        self._jobid = None
15        self._status = 'initializing'
16        self._document = document
17        self._printer = None
18
19    @property
20    def jobid(self):
21        return self._jobid
22
23    @jobid.setter
24    def jobid(self, val):
25        raise AttributeError("Setting jobid is illegal!")
26
27    @property
28    def document(self):
29        return self._document
30
31    @document.setter
32    def document(self, path):
33        if not os.path.exists(path):
34            raise IOError("Document '%s' does not exist!" % path)
35        self._document = path
36
37    @property
38    def status(self):
39        return self._status
40
41    @status.setter
42    def status(self, val):
43        raise AttributeError(
44            "Setting status directly is illegal!  " + \
45            "Please use enqueue(), play(), or finish().")
46
47    @property
48    def printer(self):
49        return self._printer
50
51    @printer.setter
52    def printer(self, val):
53        raise AttributeError(
54            "Setting printer directly is illegal!  " + \
55            "Please use enqueue().")
56
57    def enqueue(self, printer, jobid):
58        if self.status != 'initializing':
59            raise InvalidJobException(
60                "Cannot enqueue a job that has " + \
61                "already been initialized!")
62        self._printer = printer
63        self._jobid = jobid
64        self._status = 'active'
65
66    def play(self):
67        if self.status != 'active':
68            raise InvalidJobException(
69                "Cannot play an inactive job!")
70       
71        self._status = 'playing'
72        # TODO: add external call to music player
73        print "Playing job %s" % str(self)
74        self.printer.complete_job(self.jobid)
75
76    def finish(self):
77        self._status = 'finished'
78
79    def __repr__(self):
80        return str(self)
81
82    def __str__(self):
83        return "<Job %d '%s'>" % \
84               (self.jobid if self.jobid is not None else -1, \
85                                  self.document)
Note: See TracBrowser for help on using the repository browser.