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Source code for galaxy.tools.actions.metadata

import logging
import os
from json import dumps

from galaxy.datatypes.metadata import JobExternalOutputMetadataWrapper
from galaxy.jobs.datasets import DatasetPath
from galaxy.util.odict import odict

from . import ToolAction

log = logging.getLogger(__name__)


[docs]class SetMetadataToolAction(ToolAction): """Tool action used for setting external metadata on an existing dataset"""
[docs] def execute(self, tool, trans, incoming={}, set_output_hid=False, overwrite=True, history=None, job_params=None, **kwargs): """ Execute using a web transaction. """ job, odict = self.execute_via_app(tool, trans.app, trans.get_galaxy_session().id, trans.history.id, trans.user, incoming, set_output_hid, overwrite, history, job_params) # FIXME: can remove this when logging in execute_via_app method. trans.log_event("Added set external metadata job to the job queue, id: %s" % str(job.id), tool_id=job.tool_id) return job, odict
[docs] def execute_via_app(self, tool, app, session_id, history_id, user=None, incoming={}, set_output_hid=False, overwrite=True, history=None, job_params=None): """ Execute using application. """ for name, value in incoming.items(): if isinstance(value, app.model.HistoryDatasetAssociation): dataset = value dataset_name = name type = 'hda' break elif isinstance(value, app.model.LibraryDatasetDatasetAssociation): dataset = value dataset_name = name type = 'ldda' break else: raise Exception('The dataset to set metadata on could not be determined.') sa_session = app.model.context # Create the job object job = app.model.Job() job.session_id = session_id job.history_id = history_id job.tool_id = tool.id if user: job.user_id = user.id if job_params: job.params = dumps(job_params) start_job_state = job.state # should be job.states.NEW try: # For backward compatibility, some tools may not have versions yet. job.tool_version = tool.version except: job.tool_version = "1.0.1" job.state = job.states.WAITING # we need to set job state to something other than NEW, or else when tracking jobs in db it will be picked up before we have added input / output parameters job.set_handler(tool.get_job_handler(job_params)) sa_session.add(job) sa_session.flush() # ensure job.id is available # add parameters to job_parameter table # Store original dataset state, so we can restore it. A separate table might be better (no chance of 'losing' the original state)? incoming['__ORIGINAL_DATASET_STATE__'] = dataset.state input_paths = [DatasetPath(dataset.id, real_path=dataset.file_name, mutable=False)] app.object_store.create(job, base_dir='job_work', dir_only=True, extra_dir=str(job.id)) job_working_dir = app.object_store.get_filename(job, base_dir='job_work', dir_only=True, extra_dir=str(job.id)) datatypes_config = os.path.join(job_working_dir, 'registry.xml') app.datatypes_registry.to_xml_file(path=datatypes_config) external_metadata_wrapper = JobExternalOutputMetadataWrapper(job) cmd_line = external_metadata_wrapper.setup_external_metadata(dataset, sa_session, exec_dir=None, tmp_dir=job_working_dir, dataset_files_path=app.model.Dataset.file_path, output_fnames=input_paths, config_root=app.config.root, config_file=app.config.config_file, datatypes_config=datatypes_config, job_metadata=None, include_command=False, max_metadata_value_size=app.config.max_metadata_value_size, kwds={'overwrite': overwrite}) incoming['__SET_EXTERNAL_METADATA_COMMAND_LINE__'] = cmd_line for name, value in tool.params_to_strings(incoming, app).items(): job.add_parameter(name, value) # add the dataset to job_to_input_dataset table if type == 'hda': job.add_input_dataset(dataset_name, dataset) elif type == 'ldda': job.add_input_library_dataset(dataset_name, dataset) # Need a special state here to show that metadata is being set and also allow the job to run # i.e. if state was set to 'running' the set metadata job would never run, as it would wait for input (the dataset to set metadata on) to be in a ready state dataset._state = dataset.states.SETTING_METADATA job.state = start_job_state # job inputs have been configured, restore initial job state sa_session.flush() # Queue the job for execution app.job_queue.put(job.id, tool.id) # FIXME: need to add event logging to app and log events there rather than trans. # trans.log_event( "Added set external metadata job to the job queue, id: %s" % str(job.id), tool_id=job.tool_id ) # clear e.g. converted files dataset.datatype.before_setting_metadata(dataset) return job, odict()