83 lines
3.4 KiB
Go
83 lines
3.4 KiB
Go
// Файл: internal/commands/commands.go
|
||
// Назначение: Реализация MongoDB-подобных команд CRUD и команд управления кластером.
|
||
// Добавлены команды для работы с индексами, ACL и ограничениями.
|
||
|
||
package commands
|
||
|
||
import (
|
||
"futriis/pkg/utils"
|
||
)
|
||
|
||
// ShowHelp отображает справку по всем доступным командам
|
||
func ShowHelp() {
|
||
helpText := `
|
||
=== FUTRIIS DATABASE COMMANDS ===
|
||
|
||
DATABASE MANAGEMENT:
|
||
use <db> - Switch to database
|
||
show dbs - List all databases
|
||
show collections - List collections in current database
|
||
|
||
COLLECTION OPERATIONS:
|
||
db.createCollection("<name>") - Create new collection
|
||
db.<collection>.insert({...}) - Insert document into collection
|
||
db.<collection>.find({_id: "..."}) - Find document by ID
|
||
db.<collection>.find() - Find all documents in collection
|
||
db.<collection>.findByIndex("<index>", "<value>") - Find by secondary index
|
||
db.<collection>.update({_id: "..."}, {...}) - Update document
|
||
db.<collection>.remove({_id: "..."}) - Delete document
|
||
|
||
INDEX MANAGEMENT:
|
||
db.<collection>.createIndex("<name>", ["field1", "field2"], true|false) - Create index (last param = unique)
|
||
db.<collection>.dropIndex("<name>") - Drop index
|
||
db.<collection>.listIndexes() - List all indexes
|
||
|
||
CONSTRAINTS:
|
||
db.<collection>.addRequired("<field>") - Add required field constraint
|
||
db.<collection>.addUnique("<field>") - Add unique constraint
|
||
db.<collection>.addMin("<field>", <value>) - Add minimum value constraint
|
||
db.<collection>.addMax("<field>", <value>) - Add maximum value constraint
|
||
db.<collection>.addEnum("<field>", [values]) - Add enum constraint
|
||
|
||
ACL MANAGEMENT:
|
||
acl createUser "<username>" "<password>" [roles] - Create new user
|
||
acl createRole "<rolename>" - Create new role
|
||
acl grant "<rolename>" "<permission>" - Grant permission to role
|
||
acl addUserRole "<username>" "<rolename>" - Add role to user
|
||
acl login "<username>" "<password>" - Login (returns session token)
|
||
acl logout - Logout current session
|
||
acl listUsers - List all users
|
||
acl listRoles - List all roles
|
||
|
||
TRANSACTIONS (MongoDB-like syntax):
|
||
session = db.startSession() - Start a new session
|
||
session.startTransaction() - Begin a transaction
|
||
session.commitTransaction() - Commit current transaction
|
||
session.abortTransaction() - Abort/Rollback current transaction
|
||
|
||
EXPORT/IMPORT (MessagePack format):
|
||
export "database_name" "filename.msgpack" - Export entire database
|
||
import "database_name" "filename.msgpack" - Import database from .msgpack file
|
||
|
||
CLUSTER MANAGEMENT:
|
||
cluster status - Show cluster status
|
||
cluster nodes - List all cluster nodes
|
||
cluster add <ip> <port> - Add node to cluster
|
||
cluster remove <node_id> - Remove node from cluster
|
||
cluster sync <db> <coll> - Sync collection across cluster
|
||
cluster replication-factor [n] - Get or set replication factor
|
||
cluster leader - Show cluster leader
|
||
cluster health - Check cluster health
|
||
|
||
HTTP API:
|
||
The database also exposes HTTP RESTful API on port 8080 (configurable)
|
||
See documentation for endpoints: /api/db/, /api/index/, /api/acl/, /api/constraint/
|
||
|
||
UTILITIES:
|
||
help - Show this help message
|
||
exit / quit - Exit database
|
||
|
||
`
|
||
utils.Println(helpText)
|
||
}
|