a
    »ÏOcÃ)  ã                   @   s’   d Z ddlZddlZddlmZ ddlmZ ddlmZmZm	Z	 ddlm
Z ddlmZmZ ejZG dd	„ d	eƒZG d
d„ dƒZG dd„ dƒZdS )z1
Module defining main interface classes for sync
é    N)Úcontextmanager)Údatetime)Ú_config_logsÚ_fetchÚ_sync)Ú_tasks_sequential)Úget_backendÚresourcec                   @   s   e Zd ZdZdS )Ú_CancelSavez%Token exception to cancel transactionN)Ú__name__Ú
__module__Ú__qualname__Ú__doc__© r   r   úH/var/www/html/gsl.tools/lib/python3.9/site-packages/peeringdb/_update.pyr
      s   r
   c                   @   sL   e Zd ZdZddd„Zddd	„Zddd„Zddd„Zdd„ Ze	dd„ ƒZ
dS )ÚUpdatera  
    Class for updating resource data.

    Arguments:
        - fetcher: Fetcher instance for RPC calls
        - strip_tz<bool>: strip timezones from datetime values
        - dry_run<bool>: perform sync, but don't actually commit to
            database
    TFc                 K   s.   || _ || _|| _t| _tƒ  t t¡| _	d S ©N)
Ú_fetcherÚstrip_tzÚdry_runÚUpdateContextÚ_ContextClassr   ÚloggingÚ	getLoggerr   Ú_log)ÚselfÚfetcherr   r   Ú_r   r   r   Ú__init__   s    zUpdater.__init__é   Nc                    s$   ‡ ‡‡‡fdd„}ˆ  ˆ||¡ dS )z¸
        Try to sync an object to the local database, in case of failure
        where a referenced object is not found, attempt to fetch said
        object from the REST api
        c                      s   ˆj jˆˆ dˆd�S )Nr   ©Úsince)r   Úfetch_latestr   ©ÚpkÚresr   r!   r   r   Úfetch0   s    zUpdater.update.<locals>.fetchN©Ú_update)r   r%   r$   Údepthr!   r&   r   r#   r   Úupdate)   s    zUpdater.updater   c                    s$   ‡ ‡‡‡fdd„}ˆ  ˆ||¡ dS )z'Like update() but uses WHERE-style argsc                      s   ˆj jˆdˆ ˆd�S )Nr   r    )r   Úfetch_all_latestr   ©Úkwargsr%   r   r!   r   r   r&   8   s    z#Updater.update_where.<locals>.fetchNr'   )r   r%   r)   r!   r-   r&   r   r,   r   Úupdate_where5   s    zUpdater.update_wherec              	   C   s€   | j  dd dd„ |pg D ƒ¡¡ |du r2t ¡ }|  | ¡}|D ]:}|  ¡ � |j||d� W d  ƒ q@1 sp0    Y  q@dS )zCSync all objects for the relations rs (if None, sync all resources)zUpdating resources: %sú c                 s   s   | ]}|j V  qd S r   )Útag)Ú.0Úrr   r   r   Ú	<genexpr>?   ó    z%Updater.update_all.<locals>.<genexpr>Nr    )r   ÚinfoÚjoinr	   Úall_resourcesr   Ú_transactionÚsync_resource)r   Úrsr!   Úctxr2   r   r   r   Ú
update_all=   s    "

zUpdater.update_allc                 C   sp   |   | ¡}|ƒ \}}|r|‚| j dt|ƒ› �¡ |  ¡ �" | |||d ¡ W d   ƒ n1 sb0    Y  d S )NzUpdates to be processed: r   )r   r   r5   Úlenr8   Ú	sync_rows)r   r%   Ú
fetch_funcr)   r;   ÚdataÚer   r   r   r(   H   s    


zUpdater._updatec                 c   sn   zJt ƒ  ¡ �, d V  | jrt‚| j d¡ W d   ƒ n1 s>0    Y  W n tyh   | j d¡ Y n0 d S )NzCommitting transactionz*Transaction commit was cancelled (dry run))r   Zatomic_transactionr   r
   r   Údebugr5   ©r   r   r   r   r8   Q   s    .zUpdater._transaction)TF)r   N)r   N)NN)r   r   r   r   r   r*   r.   r<   r(   r   r8   r   r   r   r   r      s   





	r   c                   @   s’   e Zd Zdd„ Zejddd„ƒZejdd„ ƒZdd	„ Zd
d„ Z	dd„ Z
dd„ Zejdd„ ƒZejdd„ ƒZejdd„ ƒZejdd„ ƒZdd„ ZdS )r   c                 C   sF   || _ |j| _|j| _dd„ t ¡ D ƒt ¡ f| _d| _	t
 ¡ | _d S )Nc                 S   s   i | ]
}|i “qS r   r   )r1   ÚRr   r   r   Ú
<dictcomp>d   r4   z*UpdateContext.__init__.<locals>.<dictcomp>T)Úupdaterr   r   r   r	   r7   Ú	threadingÚLockÚ_jobsÚdisable_partialr   ÚutcnowÚ
start_time)r   rF   r   r   r   r   `   s    zUpdateContext.__init__Nc                 C   sL   | j  d|j¡ | jj|d|d�\}}| j  dt|ƒ¡ t |  ||d¡¡S )NzFetching & updating all: %sr   r    zUpdates to be processed: %s)	r   r5   r0   r   r+   r=   Ú_tasksÚgatherÚ_schedule_rows)r   r%   r!   r@   rA   r   r   r   r9   h   s    zUpdateContext.sync_resourcec                 C   s   t  |  |||¡¡S r   )rM   rN   rO   ©r   r%   Úrowsr)   r   r   r   r>   s   s    zUpdateContext.sync_rowsc                    s   ‡ ‡‡fdd„|D ƒS )Nc              	      s*   g | ]"}ˆ  ˆ|d  fˆjˆ|ˆ f¡‘qS ©Úid©Úset_jobÚsync_row©r1   Úrow©r)   r%   r   r   r   Ú
<listcomp>x   s   ÿz0UpdateContext._schedule_rows.<locals>.<listcomp>r   rP   r   rY   r   rO   w   s    þzUpdateContext._schedule_rowsc                 C   sH   |\}}| j \}}|� ||  |¡W  d  ƒ S 1 s:0    Y  dS )zGet a scheduled task, or noneN)rI   Úget)r   Úkeyr%   r$   ÚjobsÚlockr   r   r   Úget_task}   s    
zUpdateContext.get_taskc                 C   sš   |\}}| j \}}t ||Ž |¡}|�D ||  |¡}	t|	ƒ}
|	sT|}	|	|| |< n| ¡  W d  ƒ n1 sp0    Y  | j d|j||
s�dnd¡ |	S )zy
        Get a scheduled task or set if none exists.

        Returns:
            - task coroutine/continuation
        NzScheduling: %s-%s (%s)znew taskÚdup)	rI   rM   Ú
UpdateTaskr[   ÚboolÚcancelr   rB   r0   )r   r\   ÚfuncÚargsr%   r$   r]   r^   ZtaskÚjobZhadr   r   r   rU   „   s    
&ÿzUpdateContext.set_jobc                 C   s>   | j \}}|� ||  ¡ W  d  ƒ S 1 s00    Y  dS )zSynchronized access to tasksN)rI   Úcopy)r   r%   r]   r^   r   r   r   Úpending_jobs›   s    
zUpdateContext.pending_jobsc                 c   s&   |ƒ \}}|r|‚dd„ |D ƒV  dS )z/Fetch data with func, return dict indexed by IDc                 S   s   i | ]}|d  |“qS rR   r   rW   r   r   r   rE   §   r4   z1UpdateContext.fetch_and_index.<locals>.<dictcomp>Nr   )r   r?   r@   rA   r   r   r   Úfetch_and_index¡   s    
zUpdateContext.fetch_and_indexc                 c   sp   |V }|r|| }nH| j  d|j|¡ | j ||d¡\}}|sT| j  d|j|¡ d S |d }|  |||¡V  d S )NzFetched no data for %s-%sr   z.Fetched no deleted objects for %s-%s, aborting)r   r5   r0   r   Zfetch_deletedrV   )r   r%   r$   r)   Ú	fetch_jobr@   rX   rA   r   r   r   Úupdate_afterª   s    
ÿzUpdateContext.update_afterc                 #   s¦  t ƒ ‰ ‡ fdd„}ˆj dˆjˆd ˆ¡ ˆjr@ˆdkr@tdƒ‚t ˆ ˆˆ¡\}}g }| ¡ D ]<\‰}|ˆt	| 
¡ ƒƒ‰| ‡‡‡‡fdd„| ¡ D ƒ¡ q^| ¡ D ]¦\‰}	|	 |ˆ|	ƒ¡}	ˆ ˆ¡}
g }|	D ],}||
v rð| ˆ ˆ|f¡¡ qÎ| |¡ qÎ|�sq¤ˆ|f‡fd	d
„	}t ˆ |¡ˆd f¡‰| ‡‡‡‡fdd„|	D ƒ¡ q¤t ˆ ˆˆ¡‰t ˆ ˆˆˆ¡ ˆj d|¡ t |¡V  ˆj dˆjˆd ˆ¡ t ˆ ˆˆˆ¡ t ˆ ˆˆ j¡\}}|�rÞˆ ˆˆ|¡}| |¡ | ¡ D ]2\‰}	|	D ]"}||ˆ v�ròtdˆ|fƒ‚�qò�qæt ˆ ˆˆˆjj¡ ˆjˆjk�rVˆj  dˆjˆd ¡ d S ˆjj!�sjˆ  "ˆ¡ ‡ ‡‡‡‡fdd„}ˆ #ˆˆd fˆj$ˆˆd ||f¡ d S )Nc                    s$   ˆ   ˆ  | ¡|¡}t|jddd�ƒS )NrS   T)Zflat)Zget_objectsÚget_concreteÚsetZvalues_list)rD   ÚpksÚhave)ÚBr   r   Ú_have¾   s    z%UpdateContext.sync_row.<locals>._havezsync_row(%s, %s, %s)rS   r   zdepth > 0 sync is disabledc              	   3   s8   | ]0\}}|ˆvrˆ  ˆ |fˆjˆ |ˆd  f¡V  qdS ©r   NrT   )r1   r$   Zsubrow)rD   r)   ro   r   r   r   r3   Í   s   þz)UpdateContext.sync_row.<locals>.<genexpr>c                    s   ˆ j  | dt|d�¡S )Nr   )Zid__in)r   Z	fetch_allÚdict)Z_RZ_pksrC   r   r   Úfetch_danglingß   s    z.UpdateContext.sync_row.<locals>.fetch_danglingc              	   3   s.   | ]&}ˆ  ˆ |fˆjˆ |ˆd  ˆf¡V  qdS rr   )rU   rk   )r1   r$   )rD   r)   rj   r   r   r   r3   å   s   ÿú waiting for: %szsync_row(%s, %s, %s) (resumed)zUnexpected missing relationz1Ignoring object updated after sync began: (%s-%s)c                      sD   t  ˆ ˆˆˆ¡ t  ˆ ˆˆˆ¡ ˆjjr,d S ˆ  ˆ¡ ˆ  ˆ¡ d S r   )r   Úset_single_relationsZset_many_relationsrF   r   ÚcleanÚsaver   )rp   Úobjr%   rX   r   r   r   Úfinish  s    
z&UpdateContext.sync_row.<locals>.finish)%r   r   rB   r0   rJ   Ú
ValueErrorr   Zextract_relationsÚitemsrm   ÚkeysÚextendÚ
differencerh   Úappendr_   rM   ra   ri   Zinitialize_objectZset_scalarsrN   rv   Zclean_helperrw   Ú_handle_duplicateÚRuntimeErrorZpatch_objectrF   r   ÚupdatedrL   r5   r   rx   rU   Úsync_row_finish)r   r%   rX   r)   rq   ZfetchedZdanglingÚ	sync_jobsÚsubrn   ÚpendingZneedpksr$   rt   Ú
dup_fieldsÚmissingrf   rz   r   )	rp   rD   r)   rj   ro   ry   r%   rX   r   r   rV   º   sn    þ

ÿþ

ÿ

	ÿzUpdateContext.sync_rowc                 c   s6   | j  d|¡ t |¡V  | j  d|j|¡ |ƒ  d S )Nru   zsync_row(%s, %s) (finish))r   rB   rM   rN   r0   )r   r%   r$   rd   r…   r   r   r   r„     s    zUpdateContext.sync_row_finishc           
         s¼   t ƒ }|d }t||ƒ}z*| | ˆ¡||¡}|j‰ |jdd� W n& | | ˆ¡¡yh   tdƒ‚Y n0 ˆj 	d||¡ ‡ ‡‡fdd„}t
 ˆ |¡ˆˆ f¡}	ˆ ˆˆ fˆjˆˆ d|	f¡S )Nr   T)Úhardzinternal errorzdup: %s = %sc                     s0   ˆj  ˆˆ d¡\} }t|tjƒr(i d fS | |fS )Nr   )r   r"   Ú
isinstancer   ZNotFoundException)r@   Úerr©Zdup_idr%   r   r   r   Ú	fetch_dup2  s    z2UpdateContext._handle_duplicate.<locals>.fetch_dup)r   ÚgetattrZget_object_byrl   rS   ÚdeleteZobject_missing_errorÚ	Exceptionr   rB   rM   ra   ri   rU   rk   )
r   r%   ry   rˆ   rp   ÚfieldÚvaluer`   rŽ   rj   r   r�   r   r�   $  s    
ÿzUpdateContext._handle_duplicate)N)r   r   r   r   rM   Zrun_taskr9   r>   rO   r_   rU   rh   Úwrap_generatorri   rk   rV   r„   r�   r   r   r   r   r   _   s$   




a
r   )r   r   rG   Ú
contextlibr   r   Z	peeringdbr   r   r   r   rM   r   r	   r”   r‘   r
   r   r   r   r   r   r   Ú<module>   s   K