Python CloudSpannerHook.get_database方法代码示例

# 需要导入模块: from airflow.contrib.hooks.gcp_spanner_hook import CloudSpannerHook [as 别名]
# 或者: from airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook import get_database [as 别名]
class CloudSpannerInstanceDatabaseDeleteOperator(BaseOperator):
    """
    Deletes a Cloud Spanner database.

    :param instance_id: Cloud Spanner instance ID.
    :type instance_id: str
    :param database_id: Cloud Spanner database ID.
    :type database_id: str
    :param project_id: Optional, the ID of the project that owns the Cloud Spanner
        Database.  If set to None or missing, the default project_id from the GCP connection is used.
    :type project_id: str
    :param gcp_conn_id: The connection ID used to connect to Google Cloud Platform.
    :type gcp_conn_id: str
    """
    # [START gcp_spanner_database_delete_template_fields]
    template_fields = ('project_id', 'instance_id', 'database_id',
                       'gcp_conn_id')
    # [END gcp_spanner_database_delete_template_fields]

    @apply_defaults
    def __init__(self,
                 instance_id,
                 database_id,
                 project_id=None,
                 gcp_conn_id='google_cloud_default',
                 *args, **kwargs):
        self.instance_id = instance_id
        self.project_id = project_id
        self.database_id = database_id
        self.gcp_conn_id = gcp_conn_id
        self._validate_inputs()
        self._hook = CloudSpannerHook(gcp_conn_id=gcp_conn_id)
        super(CloudSpannerInstanceDatabaseDeleteOperator, self).__init__(*args, **kwargs)

    def _validate_inputs(self):
        if self.project_id == '':
            raise AirflowException("The required parameter 'project_id' is empty")
        if not self.instance_id:
            raise AirflowException("The required parameter 'instance_id' is empty"
                                   " or None")
        if not self.database_id:
            raise AirflowException("The required parameter 'database_id' is empty"
                                   " or None")

    def execute(self, context):
        db = self._hook.get_database(project_id=self.project_id,
                                     instance_id=self.instance_id,
                                     database_id=self.database_id)
        if not db:
            self.log.info("The Cloud Spanner database was missing: "
                          "'%s' in project '%s' and instance '%s'. Assuming success.",
                          self.database_id, self.project_id, self.instance_id)
            return True
        else:
            return self._hook.delete_database(project_id=self.project_id,
                                              instance_id=self.instance_id,
                                              database_id=self.database_id)

# 需要导入模块: from airflow.contrib.hooks.gcp_spanner_hook import CloudSpannerHook [as 别名]
# 或者: from airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook import get_database [as 别名]

#.........这里部分代码省略.........
    @mock.patch('airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook._get_client')
    def test_delete_instance_missing_project_id(self, get_client):
        instance_method = get_client.return_value.instance
        instance_exists_method = instance_method.return_value.exists
        instance_exists_method.return_value = True
        delete_method = instance_method.return_value.delete
        delete_method.return_value = False
        with self.assertRaises(AirflowException) as cm:
            self.spanner_hook_no_default_project_id.delete_instance(
                instance_id=SPANNER_INSTANCE)
        get_client.assert_not_called()
        instance_method.assert_not_called()
        delete_method.assert_not_called()
        err = cm.exception
        self.assertIn("The project id must be passed", str(err))

    @mock.patch('airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook._get_client')
    def test_delete_instance_overridden_project_id(self, get_client):
        instance_method = get_client.return_value.instance
        instance_exists_method = instance_method.return_value.exists
        instance_exists_method.return_value = True
        delete_method = instance_method.return_value.delete
        delete_method.return_value = False
        res = self.spanner_hook_no_default_project_id.delete_instance(
            project_id=GCP_PROJECT_ID_HOOK_UNIT_TEST,
            instance_id=SPANNER_INSTANCE)
        get_client.assert_called_once_with(project_id='example-project')
        instance_method.assert_called_once_with(
            'instance')
        delete_method.assert_called_with()
        self.assertIsNone(res)

    @mock.patch('airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook._get_client')
    def test_get_database_missing_project_id(self, get_client):
        instance_method = get_client.return_value.instance
        instance_exists_method = instance_method.return_value.exists
        instance_exists_method.return_value = True
        database_method = instance_method.return_value.database
        database_exists_method = instance_method.return_value.exists
        database_exists_method.return_value = True
        with self.assertRaises(AirflowException) as cm:
            self.spanner_hook_no_default_project_id.get_database(
                instance_id=SPANNER_INSTANCE,
                database_id=SPANNER_DATABASE)
        get_client.assert_not_called()
        instance_method.assert_not_called()
        database_method.assert_not_called()
        err = cm.exception
        self.assertIn("The project id must be passed", str(err))

    @mock.patch('airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook._get_client')
    def test_get_database_overridden_project_id(self, get_client):
        instance_method = get_client.return_value.instance
        instance_exists_method = instance_method.return_value.exists
        instance_exists_method.return_value = True
        database_method = instance_method.return_value.database
        database_exists_method = instance_method.return_value.exists
        database_exists_method.return_value = True
        res = self.spanner_hook_no_default_project_id.get_database(
            project_id=GCP_PROJECT_ID_HOOK_UNIT_TEST,
            instance_id=SPANNER_INSTANCE,
            database_id=SPANNER_DATABASE)
        get_client.assert_called_once_with(project_id='example-project')
        instance_method.assert_called_once_with(instance_id='instance')
        database_method.assert_called_with(database_id='database-name')
        database_exists_method.assert_called_with()

# 需要导入模块: from airflow.contrib.hooks.gcp_spanner_hook import CloudSpannerHook [as 别名]
# 或者: from airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook import get_database [as 别名]
class CloudSpannerInstanceDatabaseUpdateOperator(BaseOperator):
    """
    Updates a Cloud Spanner database with the specified DDL statement.

    .. seealso::
        For more information on how to use this operator, take a look at the guide:
        :ref:`howto/operator:CloudSpannerInstanceDatabaseUpdateOperator`

    :param instance_id: The Cloud Spanner instance ID.
    :type instance_id: str
    :param database_id: The Cloud Spanner database ID.
    :type database_id: str
    :param ddl_statements: The string list containing DDL to apply to the database.
    :type ddl_statements: list[str]
    :param project_id: Optional, the ID of the project that owns the the Cloud Spanner
        Database.  If set to None or missing, the default project_id from the GCP connection is used.
    :type project_id: str
    :param operation_id: (Optional) Unique per database operation id that can
           be specified to implement idempotency check.
    :type operation_id: str
    :param gcp_conn_id: The connection ID used to connect to Google Cloud Platform.
    :type gcp_conn_id: str
    """
    # [START gcp_spanner_database_update_template_fields]
    template_fields = ('project_id', 'instance_id', 'database_id', 'ddl_statements',
                       'gcp_conn_id')
    template_ext = ('.sql', )
    # [END gcp_spanner_database_update_template_fields]

    @apply_defaults
    def __init__(self,
                 instance_id,
                 database_id,
                 ddl_statements,
                 project_id=None,
                 operation_id=None,
                 gcp_conn_id='google_cloud_default',
                 *args, **kwargs):
        self.instance_id = instance_id
        self.project_id = project_id
        self.database_id = database_id
        self.ddl_statements = ddl_statements
        self.operation_id = operation_id
        self.gcp_conn_id = gcp_conn_id
        self._validate_inputs()
        self._hook = CloudSpannerHook(gcp_conn_id=gcp_conn_id)
        super(CloudSpannerInstanceDatabaseUpdateOperator, self).__init__(*args, **kwargs)

    def _validate_inputs(self):
        if self.project_id == '':
            raise AirflowException("The required parameter 'project_id' is empty")
        if not self.instance_id:
            raise AirflowException("The required parameter 'instance_id' is empty"
                                   " or None")
        if not self.database_id:
            raise AirflowException("The required parameter 'database_id' is empty"
                                   " or None")
        if not self.ddl_statements:
            raise AirflowException("The required parameter 'ddl_statements' is empty"
                                   " or None")

    def execute(self, context):
        if not self._hook.get_database(project_id=self.project_id,
                                       instance_id=self.instance_id,
                                       database_id=self.database_id):
            raise AirflowException("The Cloud Spanner database '{}' in project '{}' and "
                                   "instance '{}' is missing. Create the database first "
                                   "before you can update it.".format(self.database_id,
                                                                      self.project_id,
                                                                      self.instance_id))
        else:
            return self._hook.update_database(project_id=self.project_id,
                                              instance_id=self.instance_id,
                                              database_id=self.database_id,
                                              ddl_statements=self.ddl_statements,
                                              operation_id=self.operation_id)

# 需要导入模块: from airflow.contrib.hooks.gcp_spanner_hook import CloudSpannerHook [as 别名]
# 或者: from airflow.contrib.hooks.gcp_spanner_hook.CloudSpannerHook import get_database [as 别名]
class CloudSpannerInstanceDatabaseDeployOperator(BaseOperator):
    """
    Creates a new Cloud Spanner database, or if database exists,
    the operator does nothing.

    .. seealso::
        For more information on how to use this operator, take a look at the guide:
        :ref:`howto/operator:CloudSpannerInstanceDatabaseDeployOperator`

    :param instance_id: The Cloud Spanner instance ID.
    :type instance_id: str
    :param database_id: The Cloud Spanner database ID.
    :type database_id: str
    :param ddl_statements: The string list containing DDL for the new database.
    :type ddl_statements: list[str]
    :param project_id: Optional, the ID of the project that owns the Cloud Spanner
        Database.  If set to None or missing, the default project_id from the GCP connection is used.
    :type project_id: str
    :param gcp_conn_id: The connection ID used to connect to Google Cloud Platform.
    :type gcp_conn_id: str
    """
    # [START gcp_spanner_database_deploy_template_fields]
    template_fields = ('project_id', 'instance_id', 'database_id', 'ddl_statements',
                       'gcp_conn_id')
    template_ext = ('.sql', )
    # [END gcp_spanner_database_deploy_template_fields]

    @apply_defaults
    def __init__(self,
                 instance_id,
                 database_id,
                 ddl_statements,
                 project_id=None,
                 gcp_conn_id='google_cloud_default',
                 *args, **kwargs):
        self.instance_id = instance_id
        self.project_id = project_id
        self.database_id = database_id
        self.ddl_statements = ddl_statements
        self.gcp_conn_id = gcp_conn_id
        self._validate_inputs()
        self._hook = CloudSpannerHook(gcp_conn_id=gcp_conn_id)
        super(CloudSpannerInstanceDatabaseDeployOperator, self).__init__(*args, **kwargs)

    def _validate_inputs(self):
        if self.project_id == '':
            raise AirflowException("The required parameter 'project_id' is empty")
        if not self.instance_id:
            raise AirflowException("The required parameter 'instance_id' is empty "
                                   "or None")
        if not self.database_id:
            raise AirflowException("The required parameter 'database_id' is empty"
                                   " or None")

    def execute(self, context):
        if not self._hook.get_database(project_id=self.project_id,
                                       instance_id=self.instance_id,
                                       database_id=self.database_id):
            self.log.info("Creating Cloud Spanner database "
                          "'%s' in project '%s' and instance '%s'",
                          self.database_id, self.project_id, self.instance_id)
            return self._hook.create_database(project_id=self.project_id,
                                              instance_id=self.instance_id,
                                              database_id=self.database_id,
                                              ddl_statements=self.ddl_statements)
        else:
            self.log.info("The database '%s' in project '%s' and instance '%s'"
                          " already exists. Nothing to do. Exiting.",
                          self.database_id, self.project_id, self.instance_id)
        return True