def delete_item(namespace, item_def):
"""
Delete item from namespace
"""
db, namespace_name = namespace
log_operation.info(f"Delete item: {item_def} from namespace {namespace_name}")
db.item_delete(namespace_name, item_def)
def update_item(namespace, item_def):
"""
Update item to namespace
"""
db, namespace_name = namespace
log_operation.info(f"Update item: {item_def} to namespace {namespace_name}")
db.item_upsert(namespace_name, item_def)
def insert_item(namespace, item_def):
"""
Insert item to namespace
"""
db, namespace_name = namespace
log_operation.info(f"Insert item: {item_def} to namespace {namespace_name}")
db.item_insert(namespace_name, item_def)
def drop_namespace(database, namespace_name):
"""
Drop a namespace
"""
db, db_name = database
log_operation.info(f"Drop a namespace with name '{namespace_name}' on database '{db_name}'")
db.namespace_drop(namespace_name)
def create_index(namespace, index_def):
"""
Create an index
"""
db, namespace_name = namespace
log_operation.info(
f"Create an index to namespace '{namespace_name}', index={index_def}")
db.index_add(namespace_name, index_def)
def get_namespace_list(database):
"""
Get list of namespaces in database
"""
log_operation.info("Get list of namespaces in database")
db, db_name = database
namespace_list = db.namespaces_enum()
return namespace_list
def drop_index(namespace, index_name):
"""
Drop index from namespace
"""
db, namespace_name = namespace
log_operation.info(
f"Drop index from namespace '{namespace_name}', index name = '{index_name}'"
)
db.index_drop(namespace_name, index_name)
def update_index(namespace, index_def):
"""
Update an index
"""
db, namespace_name = namespace
log_operation.info(
f"Update an index to namespace '{namespace_name}', new index={index_def}"
)
db.index_update(namespace_name, index_def)
def get_ns_description(database, namespace):
"""
Get information about namespace in database
"""
db, namespace_name = namespace
namespace_list = get_namespace_list(database)
log_operation.info(f"Get information about namespace {namespace_name} in database")
ns_entry = list(filter(lambda ns: ns['name'] == namespace_name, namespace_list))
return ns_entry
def create_namespace(database, namespace_name):
"""
Create a namespace
"""
db, db_name = database
log_operation.info(f"Create a namespace with name '{namespace_name}' on database '{db_name}'")
try:
db.namespace_open(namespace_name)
except Exception as e:
logging.error(e)
def sql_query(namespace, query):
db, namespace_name = namespace
item_list = list(db.select(query))
log_operation.info(f"Execute SQL query: {query}, got result: {item_list}")
return item_list
def put_metadata(namespace, key, value):
db, namespace_name = namespace
log_operation.info(
f"Put metadata '{key}: {value}' to namespace '{namespace_name}'")
db.meta_put(namespace_name, key, value)
return key, value
def get_metadata_by_key(namespace, key):
db, namespace_name = namespace
value = db.meta_get(namespace_name, key)
log_operation.info(f"Get metadata value by key: '{key}: {value}'")
return value
def get_metadata_keys(namespace):
db, namespace_name = namespace
log_operation.info("Get list of metadata keys")
meta_list = db.meta_enum(namespace_name)
return meta_list