1 # The MIT License (MIT)
3 # Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com>
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:
12 # The above copyright notice and this permission notice shall be included in
13 # all copies or substantial portions of the Software.
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
23 from bt2
import native_bt
, object, utils
24 from bt2
import interrupter
as bt2_interrupter
25 from bt2
import value
as bt2_value
30 from bt2
import component
as bt2_component
35 class _QueryExecutorCommon
:
37 def _common_ptr(self
):
38 return self
._as
_query
_executor
_ptr
()
41 def is_interrupted(self
):
42 is_interrupted
= native_bt
.query_executor_is_interrupted(self
._common
_ptr
)
43 return bool(is_interrupted
)
46 def logging_level(self
):
47 return native_bt
.query_executor_get_logging_level(self
._common
_ptr
)
50 class QueryExecutor(object._SharedObject
, _QueryExecutorCommon
):
51 _get_ref
= staticmethod(native_bt
.query_executor_get_ref
)
52 _put_ref
= staticmethod(native_bt
.query_executor_put_ref
)
54 def _as_query_executor_ptr(self
):
57 def __init__(self
, component_class
, object, params
=None, method_obj
=None):
58 if not isinstance(component_class
, _bt2_component()._ComponentClassConst
):
62 if not issubclass(component_class
, _bt2_component()._UserComponent
):
69 raise TypeError("'{}' is not a component class object".format(o
))
71 utils
._check
_str
(object)
74 params_ptr
= native_bt
.value_null
76 params
= bt2
.create_value(params
)
77 params_ptr
= params
._ptr
79 cc_ptr
= component_class
._bt
_component
_class
_ptr
()
80 assert cc_ptr
is not None
82 if method_obj
is not None and not native_bt
.bt2_is_python_component_class(
86 'cannot pass a Python object to a non-Python component class'
89 ptr
= native_bt
.bt2_query_executor_create(
90 cc_ptr
, object, params_ptr
, method_obj
94 raise bt2
._MemoryError('cannot create query executor object')
98 # Keep a reference of `method_obj` as the native query executor
99 # does not have any. This ensures that, when this object's
100 # query() method is called, the Python object still exists.
101 self
._method
_obj
= method_obj
103 def add_interrupter(self
, interrupter
):
104 utils
._check
_type
(interrupter
, bt2_interrupter
.Interrupter
)
105 native_bt
.query_executor_add_interrupter(self
._ptr
, interrupter
._ptr
)
108 native_bt
.query_executor_interrupt(self
._ptr
)
110 def _set_logging_level(self
, log_level
):
111 utils
._check
_log
_level
(log_level
)
112 status
= native_bt
.query_executor_set_logging_level(self
._ptr
, log_level
)
113 utils
._handle
_func
_status
(status
, "cannot set query executor's logging level")
115 logging_level
= property(
116 fget
=_QueryExecutorCommon
.logging_level
, fset
=_set_logging_level
120 def is_interrupted(self
):
121 is_interrupted
= native_bt
.query_executor_is_interrupted(self
._ptr
)
122 return bool(is_interrupted
)
125 status
, result_ptr
= native_bt
.query_executor_query(self
._ptr
)
126 utils
._handle
_func
_status
(status
, 'cannot query component class')
127 assert result_ptr
is not None
128 return bt2_value
._create
_from
_const
_ptr
(result_ptr
)
131 class _PrivateQueryExecutor(_QueryExecutorCommon
):
132 def __init__(self
, ptr
):
135 def _check_validity(self
):
136 if self
._ptr
is None:
137 raise RuntimeError('this object is not valid anymore')
139 def _as_query_executor_ptr(self
):
140 self
._check
_validity
()
141 return native_bt
.private_query_executor_as_query_executor_const(self
._ptr
)
143 def _invalidate(self
):
This page took 0.032345 seconds and 4 git commands to generate.