refactor: move id-generator from crate meta-api to meta-app (#15036)

meta-app is a crate defines application level meta-service keys and
values.

Author: drmingdrmer

src/meta/api/src/background_api_impl.rs

@@ -38,6 +38,7 @@ use databend_common_meta_app::background::UpdateBackgroundJobReply;
 use databend_common_meta_app::background::UpdateBackgroundJobStatusReq;
 use databend_common_meta_app::background::UpdateBackgroundTaskReply;
 use databend_common_meta_app::background::UpdateBackgroundTaskReq;
+use databend_common_meta_app::id_generator::IdGenerator;
 use databend_common_meta_kvapi::kvapi;
 use databend_common_meta_kvapi::kvapi::Key;
 use databend_common_meta_kvapi::kvapi::UpsertKVReq;
@@ -57,7 +58,6 @@ use crate::deserialize_struct;
 use crate::fetch_id;
 use crate::get_pb_value;
 use crate::get_u64_value;
-use crate::id_generator::IdGenerator;
 use crate::kv_app_error::KVAppError;
 use crate::send_txn;
 use crate::serialize_struct;

src/meta/api/src/background_api_keys.rs

@@ -28,6 +28,7 @@ use databend_common_meta_app::data_mask::GetDatamaskReply;
 use databend_common_meta_app::data_mask::GetDatamaskReq;
 use databend_common_meta_app::data_mask::MaskpolicyTableIdList;
 use databend_common_meta_app::data_mask::MaskpolicyTableIdListKey;
+use databend_common_meta_app::id_generator::IdGenerator;
 use databend_common_meta_app::schema::CreateOption;
 use databend_common_meta_app::schema::TableId;
 use databend_common_meta_app::schema::TableMeta;
@@ -44,7 +45,6 @@ use crate::data_mask_api::DatamaskApi;
 use crate::fetch_id;
 use crate::get_pb_value;
 use crate::get_u64_value;
-use crate::id_generator::IdGenerator;
 use crate::kv_app_error::KVAppError;
 use crate::send_txn;
 use crate::serialize_struct;

src/meta/api/src/data_mask_api_impl.rs

@@ -20,22 +20,17 @@ extern crate databend_common_meta_types;
 
 mod background_api;
 mod background_api_impl;
-mod background_api_keys;
 mod background_api_test_suite;
 mod data_mask_api;
 mod data_mask_api_impl;
-mod data_mask_api_keys;
-mod id_generator;
 pub mod kv_app_error;
 pub mod kv_pb_api;
 pub mod reply;
 mod schema_api;
 mod schema_api_impl;
-mod schema_api_keys;
 mod schema_api_test_suite;
 mod share_api;
 mod share_api_impl;
-mod share_api_keys;
 mod share_api_test_suite;
 pub(crate) mod testing;
 pub mod txn_backoff;
@@ -46,7 +41,6 @@ pub mod crud;
 pub use background_api::BackgroundApi;
 pub use background_api_test_suite::BackgroundApiTestSuite;
 pub use data_mask_api::DatamaskApi;
-pub use id_generator::IdGenerator;
 pub use schema_api::SchemaApi;
 pub(crate) use schema_api_impl::get_db_or_err;
 pub use schema_api_test_suite::SchemaApiTestSuite;

src/meta/api/src/data_mask_api_keys.rs

@@ -58,6 +58,7 @@ use databend_common_meta_app::app_error::WrongShare;
 use databend_common_meta_app::app_error::WrongShareObject;
 use databend_common_meta_app::data_mask::MaskpolicyTableIdList;
 use databend_common_meta_app::data_mask::MaskpolicyTableIdListKey;
+use databend_common_meta_app::id_generator::IdGenerator;
 use databend_common_meta_app::schema::CatalogId;
 use databend_common_meta_app::schema::CatalogIdToName;
 use databend_common_meta_app::schema::CatalogInfo;
@@ -243,7 +244,6 @@ use crate::util::list_tables_from_share_db;
 use crate::util::list_tables_from_unshare_db;
 use crate::util::mget_pb_values;
 use crate::util::remove_table_from_share;
-use crate::IdGenerator;
 use crate::SchemaApi;
 use crate::DEFAULT_MGET_SIZE;
 

src/meta/api/src/lib.rs

@@ -24,6 +24,7 @@ use databend_common_meta_app::app_error::UnknownShareAccounts;
 use databend_common_meta_app::app_error::UnknownTable;
 use databend_common_meta_app::app_error::WrongShare;
 use databend_common_meta_app::app_error::WrongShareObject;
+use databend_common_meta_app::id_generator::IdGenerator;
 use databend_common_meta_app::schema::CreateOption;
 use databend_common_meta_app::schema::DBIdTableName;
 use databend_common_meta_app::schema::DatabaseId;
@@ -58,7 +59,6 @@ use crate::get_share_meta_by_id_or_err;
 use crate::get_share_or_err;
 use crate::get_share_table_info;
 use crate::get_u64_value;
-use crate::id_generator::IdGenerator;
 use crate::kv_app_error::KVAppError;
 use crate::list_keys;
 use crate::send_txn;

src/meta/api/src/schema_api_impl.rs

@@ -16,15 +16,18 @@ use std::convert::Infallible;
 
 use databend_common_meta_kvapi::kvapi;
 
-use crate::background_api_keys::ID_GEN_BACKGROUND_JOB;
-use crate::data_mask_api_keys::ID_GEN_DATA_MASK;
-use crate::schema_api_keys::ID_GEN_CATALOG;
-use crate::schema_api_keys::ID_GEN_DATABASE;
-use crate::schema_api_keys::ID_GEN_INDEX;
-use crate::schema_api_keys::ID_GEN_TABLE;
-use crate::schema_api_keys::ID_GEN_TABLE_LOCK;
-use crate::share_api_keys::ID_GEN_SHARE;
-use crate::share_api_keys::ID_GEN_SHARE_ENDPOINT;
+pub(crate) const ID_GEN_TABLE: &str = "table_id";
+pub(crate) const ID_GEN_DATABASE: &str = "database_id";
+pub(crate) const ID_GEN_TABLE_LOCK: &str = "table_lock_id";
+pub(crate) const ID_GEN_INDEX: &str = "index_id";
+
+pub(crate) const ID_GEN_CATALOG: &str = "catalog_id";
+
+pub(crate) const ID_GEN_SHARE: &str = "share_id";
+pub(crate) const ID_GEN_SHARE_ENDPOINT: &str = "share_endpoint_id";
+
+pub(crate) const ID_GEN_DATA_MASK: &str = "data_mask";
+pub(crate) const ID_GEN_BACKGROUND_JOB: &str = "background_job";
 
 /// Key for resource id generator
 ///