def dispatch_workflow_commands(wf_ex, wf_cmds):
# TODO(rakhmerov): I don't like these imports but otherwise we have
# import cycles.
from mistral.engine import task_handler
from mistral.engine import workflow_handler as wf_handler
if not wf_cmds:
return
for cmd in wf_cmds:
if isinstance(cmd, (commands.RunTask, commands.RunExistingTask)):
task_handler.run_task(cmd)
elif isinstance(cmd, commands.SetWorkflowState):
# TODO(rakhmerov): Make just a single call to workflow_handler
if states.is_completed(cmd.new_state):
wf_handler.stop_workflow(cmd.wf_ex, cmd.new_state, cmd.msg)
else:
wf_handler.set_workflow_state(wf_ex, cmd.new_state, cmd.msg)
elif isinstance(cmd, commands.Noop):
# Do nothing.
pass
else:
raise exc.MistralError('Unsupported workflow command: %s' % cmd)
if wf_ex.state != states.RUNNING:
break
def dispatch_workflow_commands(wf_ex, wf_cmds):
# TODO(rakhmerov): I don't like these imports but otherwise we have
# import cycles.
from mistral.engine import task_handler
from mistral.engine import workflow_handler as wf_handler
if not wf_cmds:
return
for cmd in wf_cmds:
if isinstance(cmd, (commands.RunTask, commands.RunExistingTask)):
task_handler.run_task(cmd)
elif isinstance(cmd, commands.SetWorkflowState):
# TODO(rakhmerov): Make just a single call to workflow_handler
if states.is_completed(cmd.new_state):
wf_handler.stop_workflow(cmd.wf_ex, cmd.new_state, cmd.msg)
else:
wf_handler.set_workflow_state(wf_ex, cmd.new_state, cmd.msg)
elif isinstance(cmd, commands.Noop):
# Do nothing.
pass
else:
raise exc.MistralError('Unsupported workflow command: %s' % cmd)
if wf_ex.state != states.RUNNING:
break
def _process_commands(wf_ex, cmds):
if not cmds:
return
from mistral.engine import task_handler
from mistral.engine import workflow_handler as wf_handler
for cmd in _rearrange_commands(cmds):
if states.is_completed(wf_ex.state):
break
if wf_ex.state == states.PAUSED:
# Save all commands after 'pause' to the backlog so that
# they can be processed after the workflow is resumed.
_save_command_to_backlog(wf_ex, cmd)
continue
if isinstance(cmd, (commands.RunTask, commands.RunExistingTask)):
task_handler.run_task(cmd)
elif isinstance(cmd, commands.SetWorkflowState):
wf_handler.set_workflow_state(wf_ex, cmd.new_state, cmd.msg)
else:
raise exc.MistralError('Unsupported workflow command: %s' % cmd)
def _process_commands(wf_ex, cmds):
if not cmds:
return
from mistral.engine import task_handler
from mistral.engine import workflow_handler as wf_handler
for cmd in _rearrange_commands(cmds):
if states.is_completed(wf_ex.state):
break
if wf_ex.state == states.PAUSED:
# Save all commands after 'pause' to the backlog so that
# they can be processed after the workflow is resumed.
_save_command_to_backlog(wf_ex, cmd)
continue
if isinstance(cmd, (commands.RunTask, commands.RunExistingTask)):
task_handler.run_task(cmd)
elif isinstance(cmd, commands.SetWorkflowState):
wf_handler.set_workflow_state(wf_ex, cmd.new_state, cmd.msg)
else:
raise exc.MistralError('Unsupported workflow command: %s' % cmd)