def get_alien_element(self, pe_id):
'''Get an pipeline element by id from somewhere in the LOST system.
It is an alien element since it is most likely not part of the
pipeline instance this script belongs to.
Args:
pe_id (int): PipeElementID of the alien element.
Returns:
* :class:`lost.pyapi.script.Script`
* :class:`lost.pyapi.pipe_elements.AnnoTask`
* :class:`lost.pyapi.pipe_elements.Datasource`
* :class:`lost.pyapi.pipe_elements.VisualOutput`
* :class:`lost.pyapi.pipe_elements.DataExport`
* :class:`lost.pyapi.pipe_elements.Loop`
'''
pe = self._dbm.get_pipe_element(pe_id)
if pe.dtype == dtype.PipeElement.SCRIPT:
return Script(pe_id=pe_id)
elif pe.dtype == dtype.PipeElement.ANNO_TASK:
return pipe_elements.AnnoTask(pe, self._dbm)
elif pe.dtype == dtype.PipeElement.DATASOURCE:
return pipe_elements.Datasource(pe, self._dbm)
elif pe.dtype == dtype.PipeElement.VISUALIZATION:
return pipe_elements.VisualOutput(pe, self._dbm)
elif pe.dtype == dtype.PipeElement.DATA_EXPORT:
return pipe_elements.DataExport(pe, self._dbm)
elif pe.dtype == dtype.PipeElement.LOOP:
return pipe_elements.Loop(pe, self._dbm)
else:
raise Exception('Unknown pipe element type!')
def data_exports(self):
'''list of :class:`lost.pyapi.pipe_elements.VisualOutput` objects.
'''
res_list = []
for pe in self._connected_pes:
if pe.dtype == dtype.PipeElement.DATA_EXPORT:
res_list.append(pipe_elements.DataExport(pe, self._element._dbm))
return res_list
