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1 | # The MIT License (MIT) |
2 | # | |
3 | # Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com> | |
4 | # | |
5 | # Permission is hereby granted, free of charge, to any person obtaining a copy | |
6 | # of this software and associated documentation files (the "Software"), to deal | |
7 | # in the Software without restriction, including without limitation the rights | |
8 | # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
9 | # copies of the Software, and to permit persons to whom the Software is | |
10 | # furnished to do so, subject to the following conditions: | |
11 | # | |
12 | # The above copyright notice and this permission notice shall be included in | |
13 | # all copies or substantial portions of the Software. | |
14 | # | |
15 | # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
18 | # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
20 | # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
21 | # THE SOFTWARE. | |
22 | ||
23 | from bt2 import native_bt, object, utils | |
d73bb381 | 24 | import bt2.interrupter |
1286dcbb | 25 | import bt2.component |
83da519a | 26 | import bt2.logging |
1286dcbb PP |
27 | import bt2 |
28 | ||
29 | ||
c3044a97 | 30 | class QueryExecutor(object._SharedObject): |
a49e2cc3 PP |
31 | _get_ref = staticmethod(native_bt.query_executor_get_ref) |
32 | _put_ref = staticmethod(native_bt.query_executor_put_ref) | |
bbb3650f | 33 | |
1286dcbb PP |
34 | def __init__(self): |
35 | ptr = native_bt.query_executor_create() | |
36 | ||
37 | if ptr is None: | |
614743a5 | 38 | raise bt2._MemoryError('cannot create query executor object') |
1286dcbb PP |
39 | |
40 | super().__init__(ptr) | |
41 | ||
d73bb381 PP |
42 | def add_interrupter(self, interrupter): |
43 | utils._check_type(interrupter, bt2.interrupter.Interrupter) | |
44 | native_bt.query_executor_add_interrupter(self._ptr, interrupter._ptr) | |
45 | ||
46 | def interrupt(self): | |
47 | native_bt.query_executor_interrupt(self._ptr) | |
1286dcbb PP |
48 | |
49 | @property | |
d73bb381 PP |
50 | def is_interrupted(self): |
51 | is_interrupted = native_bt.query_executor_is_interrupted(self._ptr) | |
52 | return bool(is_interrupted) | |
1286dcbb | 53 | |
61d96b89 FD |
54 | def query( |
55 | self, | |
56 | component_class, | |
57 | object, | |
58 | params=None, | |
59 | logging_level=bt2.logging.LoggingLevel.NONE, | |
60 | ): | |
ede525fd | 61 | if not isinstance(component_class, bt2.component._ComponentClass): |
1286dcbb PP |
62 | err = False |
63 | ||
64 | try: | |
65 | if not issubclass(component_class, bt2.component._UserComponent): | |
66 | err = True | |
67 | except TypeError: | |
68 | err = True | |
69 | ||
70 | if err: | |
71 | o = component_class | |
72 | raise TypeError("'{}' is not a component class object".format(o)) | |
73 | ||
74 | utils._check_str(object) | |
75 | ||
76 | if params is None: | |
77 | params_ptr = native_bt.value_null | |
78 | else: | |
79 | params = bt2.create_value(params) | |
80 | params_ptr = params._ptr | |
81 | ||
83da519a | 82 | utils._check_log_level(logging_level) |
deec48a6 | 83 | cc_ptr = component_class._bt_component_class_ptr() |
1286dcbb | 84 | |
61d96b89 FD |
85 | status, result_ptr = native_bt.query_executor_query( |
86 | self._ptr, cc_ptr, object, params_ptr, logging_level | |
87 | ) | |
fb25b9e3 | 88 | utils._handle_func_status(status, 'cannot query component class') |
61d96b89 | 89 | assert result_ptr |
ae0bfae8 | 90 | return bt2.value._create_from_ptr(result_ptr) |