from bt2 import native_bt, object, utils
import collections.abc
import bt2.component
+import os.path
import bt2
-def _plugin_ptrs_to_plugins(plugin_ptrs):
- plugins = []
-
- for plugin_ptr in plugin_ptrs:
- plugin = _Plugin._create_from_ptr(plugin_ptr)
- plugins.append(plugin)
+def find_plugins(path, recurse=True):
+ utils._check_str(path)
+ utils._check_bool(recurse)
+ plugin_set_ptr = None
- return plugins
+ if os.path.isfile(path):
+ plugin_set_ptr = native_bt.plugin_create_all_from_file(path)
+ elif os.path.isdir(path):
+ plugin_set_ptr = native_bt.plugin_create_all_from_dir(path, int(recurse))
+ if plugin_set_ptr is None:
+ return
-def create_plugins_from_file(path):
- utils._check_str(path)
- plugin_ptrs = native_bt.py3_plugin_create_all_from_file(path)
+ return _PluginSet._create_from_ptr(plugin_set_ptr)
- if plugin_ptrs is None:
- raise bt2.Error('cannot get plugin objects from file')
- return _plugin_ptrs_to_plugins(plugin_ptrs)
+def find_plugin(name):
+ utils._check_str(name)
+ ptr = native_bt.plugin_find(name)
+ if ptr is None:
+ return
-def create_plugins_from_dir(path, recurse=True):
- utils._check_str(path)
- plugin_ptrs = native_bt.py3_plugin_create_all_from_dir(path, recurse)
+ return _Plugin._create_from_ptr(ptr)
- if plugin_ptrs is None:
- raise bt2.Error('cannot get plugin objects from directory')
-
- return _plugin_ptrs_to_plugins(plugin_ptrs)
+class _PluginSet(object._Object, collections.abc.Sequence):
+ def __len__(self):
+ count = native_bt.plugin_set_get_plugin_count(self._ptr)
+ assert(count >= 0)
+ return count
-def create_plugin_from_name(name):
- utils._check_str(name)
- plugin_ptr = native_bt.plugin_create_from_name(name)
+ def __getitem__(self, index):
+ utils._check_uint64(index)
- if plugin_ptr is None:
- raise bt2.NoSuchPluginError(name)
+ if index >= len(self):
+ raise IndexError
- return _Plugin._create_from_ptr(plugin_ptr)
+ plugin_ptr = native_bt.plugin_set_get_plugin(self._ptr, index)
+ assert(plugin_ptr)
+ return _Plugin._create_from_ptr(plugin_ptr)
class _PluginVersion:
return '{}.{}.{}{}'.format(self._major, self._minor, self._patch, extra)
-class _Plugin(object._Object, collections.abc.Sequence):
+class _PluginComponentClassesIterator(collections.abc.Iterator):
+ def __init__(self, plugin_comp_cls):
+ self._plugin_comp_cls = plugin_comp_cls
+ self._at = 0
+
+ def __next__(self):
+ plugin_ptr = self._plugin_comp_cls._plugin._ptr
+ comp_cls_type = self._plugin_comp_cls._comp_cls_type
+ total = native_bt.plugin_get_component_class_count(plugin_ptr)
+
+ while True:
+ if self._at == total:
+ raise StopIteration
+
+ comp_cls_ptr = native_bt.plugin_get_component_class_by_index(plugin_ptr,
+ self._at)
+ assert(comp_cls_ptr)
+ cc_type = native_bt.component_class_get_type(comp_cls_ptr)
+ self._at += 1
+
+ if cc_type == comp_cls_type:
+ break
+
+ native_bt.put(comp_cls_ptr)
+
+ name = native_bt.component_class_get_name(comp_cls_ptr)
+ native_bt.put(comp_cls_ptr)
+ assert(name is not None)
+ return name
+
+
+class _PluginComponentClasses(collections.abc.Mapping):
+ def __init__(self, plugin, comp_cls_type):
+ self._plugin = plugin
+ self._comp_cls_type = comp_cls_type
+
+ def __getitem__(self, key):
+ utils._check_str(key)
+ cc_ptr = native_bt.plugin_get_component_class_by_name_and_type(self._plugin._ptr,
+ key,
+ self._comp_cls_type)
+
+ if cc_ptr is None:
+ raise KeyError(key)
+
+ return bt2.component._create_generic_component_class_from_ptr(cc_ptr)
+
+ def __len__(self):
+ count = 0
+ total = native_bt.plugin_get_component_class_count(self._plugin._ptr)
+
+ for at in range(total):
+ comp_cls_ptr = native_bt.plugin_get_component_class_by_index(self._plugin._ptr,
+ at)
+ assert(comp_cls_ptr)
+ cc_type = native_bt.component_class_get_type(comp_cls_ptr)
+
+ if cc_type == self._comp_cls_type:
+ count += 1
+
+ native_bt.put(comp_cls_ptr)
+
+ return count
+
+ def __iter__(self):
+ return _PluginComponentClassesIterator(self)
+
+
+class _Plugin(object._Object):
@property
def name(self):
name = native_bt.plugin_get_name(self._ptr)
- utils._handle_ptr(name, "cannot get plugin object's name")
+ assert(name is not None)
return name
@property
return _PluginVersion(major, minor, patch, extra)
- def source_component_class(self, name):
- utils._check_str(name)
- cc_ptr = native_bt.plugin_get_component_class_by_name_and_type(self._ptr,
- name,
- native_bt.COMPONENT_CLASS_TYPE_SOURCE)
-
- if cc_ptr is None:
- return
-
- return bt2.component._create_generic_component_class_from_ptr(cc_ptr)
-
- def filter_component_class(self, name):
- utils._check_str(name)
- cc_ptr = native_bt.plugin_get_component_class_by_name_and_type(self._ptr,
- name,
- native_bt.COMPONENT_CLASS_TYPE_FILTER)
-
- if cc_ptr is None:
- return
-
- return bt2.component._create_generic_component_class_from_ptr(cc_ptr)
-
- def sink_component_class(self, name):
- utils._check_str(name)
- cc_ptr = native_bt.plugin_get_component_class_by_name_and_type(self._ptr,
- name,
- native_bt.COMPONENT_CLASS_TYPE_SINK)
-
- if cc_ptr is None:
- return
-
- return bt2.component._create_generic_component_class_from_ptr(cc_ptr)
-
- def __len__(self):
- count = native_bt.plugin_get_component_class_count(self._ptr)
- utils._handle_ret(count, "cannot get plugin object's component class count")
- return count
-
- def __getitem__(self, index):
- utils._check_uint64(index)
+ @property
+ def source_component_classes(self):
+ return _PluginComponentClasses(self, native_bt.COMPONENT_CLASS_TYPE_SOURCE)
- if index >= len(self):
- raise IndexError
+ @property
+ def filter_component_classes(self):
+ return _PluginComponentClasses(self, native_bt.COMPONENT_CLASS_TYPE_FILTER)
- cc_ptr = native_bt.plugin_get_component_class(self._ptr, index)
- utils._handle_ptr(cc_ptr, "cannot get plugin object's component class object")
- return bt2.component._create_generic_component_class_from_ptr(cc_ptr)
+ @property
+ def sink_component_classes(self):
+ return _PluginComponentClasses(self, native_bt.COMPONENT_CLASS_TYPE_SINK)
projects / babeltrace.git / blobdiff