a
    c	g%                     @   s   d Z ddlmZ ddlmZ ddlmZ ddlmZ ddlm	Z	 dd	l
mZ dd
l
mZ ddl
mZ G dd dZG dd deZG dd de	ZG dd deZdd ZG dd dZG dd deZeZdS )a|  
.. dialect:: mysql+asyncmy
    :name: asyncmy
    :dbapi: asyncmy
    :connectstring: mysql+asyncmy://user:password@host:port/dbname[?key=value&key=value...]
    :url: https://github.com/long2ice/asyncmy

Using a special asyncio mediation layer, the asyncmy dialect is usable
as the backend for the :ref:`SQLAlchemy asyncio <asyncio_toplevel>`
extension package.

This dialect should normally be used only with the
:func:`_asyncio.create_async_engine` engine creation function::

    from sqlalchemy.ext.asyncio import create_async_engine
    engine = create_async_engine("mysql+asyncmy://user:pass@hostname/dbname?charset=utf8mb4")


    )asynccontextmanager   )MySQLDialect_pymysql   )pool)util)AdaptedConnection)asyncio)await_fallback)
await_onlyc                   @   s   e Zd ZdZdZdd Zedd Zedd Zed	d
 Z	e	j
dd
 Z	edd Zdd Zd#ddZdd Zdd Zdd Zdd Zdd Zdd Zd$dd Zd!d" ZdS )%AsyncAdapt_asyncmy_cursorF)_adapt_connection_connectionawait__cursor_rowsc                 C   s:   || _ |j| _|j| _| j }| | | _g | _d S N)r   r   r   cursor
__aenter__r   r   selfZadapt_connectionr    r   d/var/www/html/llm_bihealth/app/venv/lib/python3.9/site-packages/sqlalchemy/dialects/mysql/asyncmy.py__init__1   s    
z"AsyncAdapt_asyncmy_cursor.__init__c                 C   s   | j jS r   )r   descriptionr   r   r   r   r   ;   s    z%AsyncAdapt_asyncmy_cursor.descriptionc                 C   s   | j jS r   )r   rowcountr   r   r   r   r   ?   s    z"AsyncAdapt_asyncmy_cursor.rowcountc                 C   s   | j jS r   r   	arraysizer   r   r   r   r   C   s    z#AsyncAdapt_asyncmy_cursor.arraysizec                 C   s   || j _d S r   r   r   valuer   r   r   r   G   s    c                 C   s   | j jS r   )r   	lastrowidr   r   r   r   r!   K   s    z#AsyncAdapt_asyncmy_cursor.lastrowidc                 C   s   g | j d d < d S r   r   r   r   r   r   closeO   s    zAsyncAdapt_asyncmy_cursor.closeNc                 C   s   |  | ||S r   )r   _execute_async)r   	operation
parametersr   r   r   executeY   s    z!AsyncAdapt_asyncmy_cursor.executec                 C   s   |  | ||S r   )r   _executemany_asyncr   r%   Zseq_of_parametersr   r   r   executemany\   s    
z%AsyncAdapt_asyncmy_cursor.executemanyc              	      s   | j  4 I d H f |d u r0| j|I d H }n| j||I d H }| js`t| j I d H | _|W  d   I d H  S 1 I d H s0    Y  d S r   )r   _mutex_and_adapt_errorsr   r'   server_sidelistfetchallr   )r   r%   r&   resultr   r   r   r$   a   s    z(AsyncAdapt_asyncmy_cursor._execute_asyncc              	      sV   | j  4 I d H * | j||I d H W  d   I d H  S 1 I d H sH0    Y  d S r   )r   r+   r   r*   r)   r   r   r   r(   p   s    z,AsyncAdapt_asyncmy_cursor._executemany_asyncc                 G   s   d S r   r   )r   Z
inputsizesr   r   r   setinputsizest   s    z'AsyncAdapt_asyncmy_cursor.setinputsizesc                 c   s   | j r| j dV  q d S Nr   r   popr   r   r   r   __iter__w   s    z"AsyncAdapt_asyncmy_cursor.__iter__c                 C   s   | j r| j dS d S d S r1   r2   r   r   r   r   fetchone{   s    z"AsyncAdapt_asyncmy_cursor.fetchonec                 C   s8   |d u r| j }| jd| }| j|d  | jd d < |S r1   )r   r   )r   sizeretvalr   r   r   	fetchmany   s
    z#AsyncAdapt_asyncmy_cursor.fetchmanyc                 C   s    | j d d  }g | j d d < |S r   r"   )r   r7   r   r   r   r.      s    z"AsyncAdapt_asyncmy_cursor.fetchall)N)N)__name__
__module____qualname__r,   	__slots__r   propertyr   r   r   setterr!   r#   r'   r*   r$   r(   r0   r4   r5   r8   r.   r   r   r   r   r   '   s.   








r   c                   @   s>   e Zd ZdZdZdd Zdd Zdd Zdd
dZdd Z	d	S )AsyncAdapt_asyncmy_ss_cursorr   Tc                 C   s>   || _ |j| _|j| _| j|jjjj}| | | _	d S r   )
r   r   r   r   dbapiasyncmyZcursorsZSSCursorr   r   r   r   r   r   r      s    
z%AsyncAdapt_asyncmy_ss_cursor.__init__c                 C   s$   | j d ur | | j   d | _ d S r   )r   r   r#   r   r   r   r   r#      s    
z"AsyncAdapt_asyncmy_ss_cursor.closec                 C   s   |  | j S r   )r   r   r5   r   r   r   r   r5      s    z%AsyncAdapt_asyncmy_ss_cursor.fetchoneNc                 C   s   |  | jj|dS )N)r6   )r   r   r8   )r   r6   r   r   r   r8      s    z&AsyncAdapt_asyncmy_ss_cursor.fetchmanyc                 C   s   |  | j S r   )r   r   r.   r   r   r   r   r.      s    z%AsyncAdapt_asyncmy_ss_cursor.fetchall)N)
r9   r:   r;   r<   r,   r   r#   r5   r8   r.   r   r   r   r   r?      s   
r?   c                   @   sn   e Zd ZeeZdZdd Zedd Z	dd Z
dd	 Zd
d Zdd ZdddZdd Zdd Zdd ZdS )AsyncAdapt_asyncmy_connection)r@   _execute_mutexc                 C   s   || _ || _t | _d S r   )r@   r   r	   LockrC   )r   r@   
connectionr   r   r   r      s    z&AsyncAdapt_asyncmy_connection.__init__c              	   C  sh   | j 4 I d H @ z
d V  W n ty8   | jdY n0 W d   I d H  qd1 I d H sZ0    Y  d S )Nz7network operation failed due to asyncmy attribute error)rC   AttributeErrorr@   InternalErrorr   r   r   r   r+      s    
z5AsyncAdapt_asyncmy_connection._mutex_and_adapt_errorsc                 C   s   |rJ |  |  S r   )r   _do_ping)r   Z	reconnectr   r   r   ping   s    z"AsyncAdapt_asyncmy_connection.pingc              	      sR   |   4 I d H ( | jdI d H W  d   I d H  S 1 I d H sD0    Y  d S )NF)r+   r   rI   r   r   r   r   rH      s    z&AsyncAdapt_asyncmy_connection._do_pingc                 C   s
   | j  S r   )r   character_set_namer   r   r   r   rJ      s    z0AsyncAdapt_asyncmy_connection.character_set_namec                 C   s   |  | j| d S r   )r   r   
autocommitr   r   r   r   rK      s    z(AsyncAdapt_asyncmy_connection.autocommitFc                 C   s   |rt | S t| S d S r   )r?   r   )r   r,   r   r   r   r      s    z$AsyncAdapt_asyncmy_connection.cursorc                 C   s   |  | j  d S r   )r   r   rollbackr   r   r   r   rL      s    z&AsyncAdapt_asyncmy_connection.rollbackc                 C   s   |  | j  d S r   )r   r   commitr   r   r   r   rM      s    z$AsyncAdapt_asyncmy_connection.commitc                 C   s   | j   d S r   )r   r#   r   r   r   r   r#      s    z#AsyncAdapt_asyncmy_connection.closeN)F)r9   r:   r;   staticmethodr   r   r<   r   r   r+   rI   rH   rJ   rK   r   rL   rM   r#   r   r   r   r   rB      s   
	
rB   c                   @   s   e Zd ZdZeeZdS )%AsyncAdaptFallback_asyncmy_connectionr   N)r9   r:   r;   r<   rN   r
   r   r   r   r   r   rO      s   rO   c                 C   s   t | S )zReturn x as a binary type.)bytes)xr   r   r   _Binary   s    rR   c                   @   s^   e Zd Zdd Zdd ZedZedZedZ	edZ
ed	ZeeZd
d ZdS )AsyncAdapt_asyncmy_dbapic                 C   s   || _ d| _|   d S )Nformat)rA   Z
paramstyle_init_dbapi_attributes)r   rA   r   r   r   r      s    z!AsyncAdapt_asyncmy_dbapi.__init__c                 C   s$   dD ]}t | |t| jj| qd S )N)WarningErrorInterfaceErrorZ	DataErrorZDatabaseErrorZOperationalErrorrX   ZIntegrityErrorZProgrammingErrorrG   ZNotSupportedError)setattrgetattrrA   errors)r   namer   r   r   rU      s    z/AsyncAdapt_asyncmy_dbapi._init_dbapi_attributesSTRINGNUMBERBINARYDATETIME	TIMESTAMPc                 O   sZ   | dd}| d| jj}t|r>t| t||i |S t| t||i |S d S )Nasync_fallbackFZasync_creator_fn)	r3   rA   connectr   asboolrO   r
   rB   r   )r   argkwrb   Z
creator_fnr   r   r   rc     s    
z AsyncAdapt_asyncmy_dbapi.connectN)r9   r:   r;   r   rU   r   symbolr]   r^   r_   r`   ra   rN   rR   Binaryrc   r   r   r   r   rS      s   




rS   c                       sd   e Zd ZdZdZdZeZdZe	dd Z
e	dd Z fddZ fd	d
Zdd Zdd Z  ZS )MySQLDialect_asyncmyrA   Tc                 C   s   t tdS )NrA   )rS   
__import__)clsr   r   r   import_dbapi   s    z!MySQLDialect_asyncmy.import_dbapic                 C   s(   |j dd}t|rtjS tjS d S )Nrb   F)querygetr   rd   r   ZFallbackAsyncAdaptedQueuePoolZAsyncAdaptedQueuePool)rk   urlrb   r   r   r   get_pool_class$  s    
z#MySQLDialect_asyncmy.get_pool_classc                    s   t  j|tddddS )Nuserdb)usernameZdatabase)Z_translate_args)supercreate_connect_argsdict)r   ro   	__class__r   r   ru   -  s    z(MySQLDialect_asyncmy.create_connect_argsc                    s4   t  |||rdS t| }d|v p.d|v S d S )NTznot connectedznetwork operation failed)rt   is_disconnectstrlower)r   erE   r   Zstr_erw   r   r   ry   2  s
    z"MySQLDialect_asyncmy.is_disconnectc                 C   s   ddl m} |jS )Nr   )CLIENT)Zasyncmy.constantsr}   Z
FOUND_ROWS)r   r}   r   r   r   _found_rows_client_flag;  s    z,MySQLDialect_asyncmy._found_rows_client_flagc                 C   s   |j S r   )r   )r   rE   r   r   r   get_driver_connection@  s    z*MySQLDialect_asyncmy.get_driver_connection)r9   r:   r;   ZdriverZsupports_statement_cacheZsupports_server_side_cursorsr?   Z	_sscursoris_asyncclassmethodrl   rp   ru   ry   r~   r   __classcell__r   r   rw   r   ri     s   

	ri   N)__doc__
contextlibr   Zpymysqlr    r   r   Zenginer   Zutil.concurrencyr	   r
   r   r   r?   rB   rO   rR   rS   ri   dialectr   r   r   r   <module>	   s    h2--