class _BaseComponentSpec:
+ # Base for any component spec that can be passed to
+ # TraceCollectionMessageIterator.
def __init__(self, params, obj, logging_level):
if logging_level is not None:
utils._check_log_level(logging_level)
class ComponentSpec(_BaseComponentSpec):
+ # A component spec with a specific component class.
def __init__(
self,
- plugin_name,
- class_name,
+ component_class,
params=None,
obj=None,
- logging_level=bt2_logging.LoggingLevel.NONE,
+ logging_level=bt2.LoggingLevel.NONE,
):
if type(params) is str:
params = {'inputs': [params]}
super().__init__(params, obj, logging_level)
- utils._check_str(plugin_name)
- utils._check_str(class_name)
+ is_cc_object = isinstance(
+ component_class, (bt2._SourceComponentClass, bt2._FilterComponentClass)
+ )
+ is_user_cc_type = isinstance(
+ component_class, bt2_component._UserComponentType
+ ) and issubclass(
+ component_class, (bt2._UserSourceComponent, bt2._UserFilterComponent)
+ )
- self._plugin_name = plugin_name
- self._class_name = class_name
+ if not is_cc_object and not is_user_cc_type:
+ raise TypeError(
+ "'{}' is not a source or filter component class".format(
+ component_class.__class__.__name__
+ )
+ )
- @property
- def plugin_name(self):
- return self._plugin_name
+ self._component_class = component_class
@property
- def class_name(self):
- return self._class_name
+ def component_class(self):
+ return self._component_class
+
+ @classmethod
+ def from_named_plugin_and_component_class(
+ cls,
+ plugin_name,
+ component_class_name,
+ params=None,
+ obj=None,
+ logging_level=bt2.LoggingLevel.NONE,
+ ):
+ plugin = bt2.find_plugin(plugin_name)
+
+ if plugin is None:
+ raise ValueError('no such plugin: {}'.format(plugin_name))
+
+ if component_class_name in plugin.source_component_classes:
+ comp_class = plugin.source_component_classes[component_class_name]
+ elif component_class_name in plugin.filter_component_classes:
+ comp_class = plugin.filter_component_classes[component_class_name]
+ else:
+ raise KeyError(
+ 'source or filter component class `{}` not found in plugin `{}`'.format(
+ component_class_name, plugin_name
+ )
+ )
+
+ return cls(comp_class, params, obj, logging_level)
class AutoSourceComponentSpec(_BaseComponentSpec):
+ # A component spec that does automatic source discovery.
_no_obj = object()
def __init__(self, input, params=None, obj=_no_obj, logging_level=None):
params['inputs'] = comp_inputs
comp_specs.append(
- ComponentSpec(
+ ComponentSpec.from_named_plugin_and_component_class(
plugin_name,
class_name,
params=params,
return int(s * 1e9)
-class _CompClsType:
- SOURCE = 0
- FILTER = 1
-
-
class _TraceCollectionMessageIteratorProxySink(bt2_component._UserSinkComponent):
def __init__(self, params, msg_list):
assert type(msg_list) is list
comp_cls = plugin.filter_component_classes['trimmer']
return self._graph.add_component(comp_cls, name, params)
- def _get_unique_comp_name(self, comp_spec):
- name = '{}-{}'.format(comp_spec.plugin_name, comp_spec.class_name)
+ def _get_unique_comp_name(self, comp_cls):
+ name = comp_cls.name
comps_and_specs = itertools.chain(
self._src_comps_and_specs, self._flt_comps_and_specs
)
return name
- def _component_spec_class(self, comp_spec, comp_cls_type):
- plugin = bt2.find_plugin(comp_spec.plugin_name)
-
- if plugin is None:
- raise ValueError('no such plugin: {}'.format(comp_spec.plugin_name))
-
- if comp_cls_type == _CompClsType.SOURCE:
- comp_classes = plugin.source_component_classes
- else:
- comp_classes = plugin.filter_component_classes
-
- if comp_spec.class_name not in comp_classes:
- cc_type = 'source' if comp_cls_type == _CompClsType.SOURCE else 'filter'
- raise ValueError(
- 'no such {} component class in "{}" plugin: {}'.format(
- cc_type, comp_spec.plugin_name, comp_spec.class_name
- )
- )
-
- return comp_classes[comp_spec.class_name]
-
- def _create_comp(self, comp_spec, comp_cls_type):
- comp_cls = self._component_spec_class(comp_spec, comp_cls_type)
- name = self._get_unique_comp_name(comp_spec)
+ def _create_comp(self, comp_spec):
+ comp_cls = comp_spec.component_class
+ name = self._get_unique_comp_name(comp_cls)
comp = self._graph.add_component(
comp_cls, name, comp_spec.params, comp_spec.obj, comp_spec.logging_level
)
self._connect_src_comp_port(component, port)
def _get_greatest_operative_mip_version(self):
- def append_comp_specs_descriptors(descriptors, comp_specs, comp_cls_type):
+ def append_comp_specs_descriptors(descriptors, comp_specs):
for comp_spec in comp_specs:
- comp_cls = self._component_spec_class(comp_spec, comp_cls_type)
descriptors.append(
- bt2.ComponentDescriptor(comp_cls, comp_spec.params, comp_spec.obj)
+ bt2.ComponentDescriptor(
+ comp_spec.component_class, comp_spec.params, comp_spec.obj
+ )
)
descriptors = []
- append_comp_specs_descriptors(
- descriptors, self._src_comp_specs, _CompClsType.SOURCE
- )
- append_comp_specs_descriptors(
- descriptors, self._flt_comp_specs, _CompClsType.FILTER
- )
+ append_comp_specs_descriptors(descriptors, self._src_comp_specs)
+ append_comp_specs_descriptors(descriptors, self._flt_comp_specs)
if self._stream_intersection_mode:
# we also need at least one `flt.utils.trimmer` component
- comp_spec = ComponentSpec('utils', 'trimmer')
- append_comp_specs_descriptors(descriptors, [comp_spec], _CompClsType.FILTER)
+ comp_spec = ComponentSpec.from_named_plugin_and_component_class(
+ 'utils', 'trimmer'
+ )
+ append_comp_specs_descriptors(descriptors, [comp_spec])
mip_version = bt2.get_greatest_operative_mip_version(descriptors)
# create extra filter components (chained)
for comp_spec in self._flt_comp_specs:
- comp = self._create_comp(comp_spec, _CompClsType.FILTER)
+ comp = self._create_comp(comp_spec)
self._flt_comps_and_specs.append(_ComponentAndSpec(comp, comp_spec))
# connect the extra filter chain
# it does not exist yet (it needs the created component to
# exist).
for comp_spec in self._src_comp_specs:
- comp = self._create_comp(comp_spec, _CompClsType.SOURCE)
+ comp = self._create_comp(comp_spec)
self._src_comps_and_specs.append(_ComponentAndSpec(comp, comp_spec))
# Now we connect the ports which exist at this point. We allow
projects / babeltrace.git / blobdiff