Python response.error函数代码示例

def unregister(uuids):
    try:
        uuids = [str(uuid.UUID(s)) for s in uuids]
    except ValueError as e:
        logging.warning("Attempt to unregister invalid uuid %s: %s" %
                        (uuids, e))
        return response.error("secretBadRequestErr")

    con = libvirtconnection.get()
    try:
        for sec_uuid in uuids:
            logging.info("Unregistering secret %r", sec_uuid)
            try:
                virsecret = con.secretLookupByUUIDString(sec_uuid)
            except libvirt.libvirtError as e:
                if e.get_error_code() != libvirt.VIR_ERR_NO_SECRET:
                    raise
                logging.debug("No such secret %r", sec_uuid)
            else:
                virsecret.undefine()
    except libvirt.libvirtError as e:
        logging.error("Could not unregister secrets: %s", e)
        return response.error("secretUnregisterErr")

    return response.success()

def test_diskreplicatefinish_transient_disk():
    src_drive = make_drive(src_drive_conf,
                           storage.DRIVE_SHARED_TYPE.TRANSIENT)
    _vm = FakeVm([src_drive])
    result = _vm.diskReplicateFinish(src_drive_conf, dst_drive_conf)

    assert result == response.error("transientErr")

 def _recover(self, message):
     if not response.is_error(self.status):
         self.status = response.error('migrateErr')
     self.log.error(message)
     if not self.hibernating and self._destServer is not None:
         if self._vm.post_copy == PostCopyPhase.RUNNING:
             # We can't recover a VM after a failed post-copy migration.
             # And the destination takes care of the situation itself.
             self._vm.handle_failed_post_copy(clean_vm=True)
             return
         try:
             self._destServer.destroy(self._vm.id)
         except Exception:
             self.log.exception("Failed to destroy remote VM")
     # if the guest was stopped before migration, we need to cont it
     if self.hibernating:
         self._vm.cont(ignoreStatus=True)
         if self._enableGuestEvents:
             self._vm.guestAgent.events.after_hibernation_failure()
     elif self._enableGuestEvents:
         self._vm.guestAgent.events.after_migration_failure()
     # either way, migration has finished
     if self._recovery:
         self._vm.set_last_status(vmstatus.UP, vmstatus.MIGRATION_SOURCE)
         self._recovery = False
     else:
         self._vm.lastStatus = vmstatus.UP
     self._started = False
     self._vm.send_status_event()

def test_diskreplicatefinish_job_not_found():
    src_drive = make_drive(src_drive_conf)
    _vm = FakeVm([src_drive])

    # Passing an empty dict so 'cur' and 'end will not be found
    _vm._dom = FakeDomain({})
    result = _vm.diskReplicateFinish(src_drive_conf, dst_drive_conf)

    assert result == response.error("replicaErr")

    def teardownImage(self, domainId, poolId, imageId):
        if imageId == TEARDOWN_ERROR_IMAGE_ID:
            return response.error('teardownError')

        imagepath = _vol_path(self._image_path_base, domainId, poolId, imageId)
        resultpath = _vol_path(self._image_path_base, domainId, poolId,
                               imageId, ext='.res')
        os.rename(imagepath, resultpath)
        return response.success()

    def _regular_run(self):
        self.log.debug("Starting migration source thread")
        self._recovery = False
        self._update_outgoing_limit()
        try:
            startTime = time.time()
            machineParams = self._setupRemoteMachineParams()
            self._setupVdsConnection()
            self._prepareGuest()

            while not self._started:
                try:
                    self.log.info("Migration semaphore: acquiring")
                    with SourceThread.ongoingMigrations:
                        self.log.info("Migration semaphore: acquired")
                        timeout = config.getint(
                            'vars', 'guest_lifecycle_event_reply_timeout')
                        if self.hibernating:
                            self._vm.guestAgent.events.before_hibernation(
                                wait_timeout=timeout)
                        elif self._enableGuestEvents:
                            self._vm.guestAgent.events.before_migration(
                                wait_timeout=timeout)
                        if self._migrationCanceledEvt.is_set():
                            self._raiseAbortError()
                        self.log.debug("migration semaphore acquired "
                                       "after %d seconds",
                                       time.time() - startTime)
                        migrationParams = {
                            'dst': self._dst,
                            'mode': self._mode,
                            'method': METHOD_ONLINE,
                            'dstparams': self._dstparams,
                            'dstqemu': self._dstqemu,
                        }
                        self._startUnderlyingMigration(
                            time.time(), migrationParams, machineParams
                        )
                        self._finishSuccessfully(machineParams)
                except libvirt.libvirtError as e:
                    if e.get_error_code() == libvirt.VIR_ERR_OPERATION_ABORTED:
                        self.status = response.error(
                            'migCancelErr', message='Migration canceled')
                    raise
                except MigrationLimitExceeded:
                    retry_timeout = config.getint('vars',
                                                  'migration_retry_timeout')
                    self.log.debug("Migration destination busy. Initiating "
                                   "retry in %d seconds.", retry_timeout)
                    self._migrationCanceledEvt.wait(retry_timeout)
        except MigrationDestinationSetupError as e:
            self._recover(str(e))
            # we know what happened, no need to dump hollow stack trace
        except Exception as e:
            self._recover(str(e))
            self.log.exception("Failed to migrate")

def register(secrets, clear=False):
    try:
        secrets = [Secret(params) for params in secrets]
    except ValueError as e:
        logging.warning("Attempt to register invalid secret: %s", e)
        return response.error("secretBadRequestErr")

    con = libvirtconnection.get()
    try:
        for secret in secrets:
            logging.info("Registering secret %s", secret)
            secret.register(con)
        if clear:
            uuids = frozenset(sec.uuid for sec in secrets)
            for virsecret in con.listAllSecrets():
                if virsecret.UUIDString() not in uuids and _is_ovirt_secret(virsecret):
                    virsecret.undefine()
    except libvirt.libvirtError as e:
        logging.error("Could not register secret %s: %s", secret, e)
        return response.error("secretRegisterErr")

    return response.success()

def test_blockjobabort_failed(monkeypatch):
    def raising_blockjobabort():
        raise Exception('blockJobAbort failed')

    src_drive = make_drive(src_drive_conf)
    dst_drive = make_drive(dst_drive_conf)

    _vm = FakeVm([src_drive, dst_drive])
    _vm._dom = FakeDomain({'cur': 1, 'end': 1})

    monkeypatch.setattr(FakeDomain, 'blockJobAbort', raising_blockjobabort)
    result = _vm.diskReplicateFinish(src_drive_conf, dst_drive_conf)

    assert result == response.error("changeDisk")

    def testSetNumberOfVcpusFailed(self, virt_error, vdsm_error,
                                   error_message):
        def _fail(*args):
            raise_libvirt_error(virt_error, error_message)

        with MonkeyPatchScope([(hooks, 'before_set_num_of_cpus',
                                lambda: None)]):
            with fake.VM() as testvm:
                dom = fake.Domain()
                dom.setVcpusFlags = _fail
                testvm._dom = dom

                res = testvm.setNumberOfCpus(4)  # random value

                self.assertEqual(res, response.error(vdsm_error))

    def start(self):
        # are there any available methods for power-down?
        if self.chain.callbacks:
            # flag for successful power-down event detection
            # this flag is common for both shutdown and reboot workflows
            # because we want to exit the CallbackChain in case either
            # of them happens
            self.event.clear()

            self.chain.start()
            return response.success(message=self.returnMsg)
        else:
            # No tools, no ACPI
            return response.error(
                'exist',
                message='VM without ACPI or active oVirt guest agent. '
                        'Try Forced Shutdown.')

 def test_unregister_libvirt_error(self):
     def fail(uuid):
         raise vmfakecon.Error(libvirt.VIR_ERR_INTERNAL_ERROR)
     self.connection.secretLookupByUUIDString = fail
     res = secret.unregister([str(uuid.uuid4())])
     self.assertEqual(res, response.error("secretUnregisterErr"))

 def test_unregister_validation(self):
     res = secret.unregister(["this-is-not-a-uuid"])
     self.assertEqual(res, response.error("secretBadRequestErr"))

 def test_register_libvirt_error(self):
     def fail(xml):
         raise vmfakecon.Error(libvirt.VIR_ERR_INTERNAL_ERROR)
     self.connection.secretDefineXML = fail
     res = secret.register([make_secret()])
     self.assertEqual(res, response.error("secretRegisterErr"))

 def test_register_validation(self):
     res = secret.register([{"invalid": "secret"}])
     self.assertEqual(res, response.error("secretBadRequestErr"))

 def test_abort_from_invalid_state(self, status, err):
     job = TestingJob(status)
     jobs.add(job)
     res = jobs.abort(job.id)
     self.assertEqual(response.error(err), res)