U
    h!                     @   s   d dl Z d dlZd dlZd dlZd dlZd dlmZ d dlmZm	Z	 d dl
mZ d dlmZ d dlmZmZmZmZ dd ZdaG d	d
 d
eZeddddddddddg	G dd dejZG dd deZdS )    N)suppress)cached_propertywraps)parse_qs)AbstractFileSystem)"get_package_version_without_importinfer_storage_optionsmirror_fromtokenizec                    s   t   fdd}|S )Nc               
      sj   z | |W S  t k
rd } z:|js& |j^}} t|trRd|krRttj||n W 5 d }~X Y nX d S )Nzdoes not exist)OSErrorargs
isinstancestrFileNotFoundErrorerrnoENOENT)r   kwargs	exceptionmessagefunc N/var/www/html/venv/lib/python3.8/site-packages/fsspec/implementations/arrow.pywrapper   s    
z wrap_exceptions.<locals>.wrapper)r   )r   r   r   r   r   wrap_exceptions   s    r   c                       s   e Zd ZdZdZ fddZedd Zedd Z	e
d	d
 Zd-ddZdd Zdd Zdd Zedd Zedd Zedd Zed.ddZed/dd Zed0d!d"Zed1d#d$Zed%d& Zed'd( Zd2 fd)d*	Z fd+d,Z  ZS )3ArrowFSWrapperzwFSSpec-compatible wrapper of pyarrow.fs.FileSystem.

    Parameters
    ----------
    fs : pyarrow.fs.FileSystem

    /c                    s    t da|| _t jf | d S )NZpyarrow)r   PYARROW_VERSIONfssuper__init__)selfr   r   	__class__r   r   r    3   s    zArrowFSWrapper.__init__c                 C   s   | j jS N)r   	type_namer!   r   r   r   protocol9   s    zArrowFSWrapper.protocolc                 C   s   dt | jj| jj S )NZhdfs_)r
   r   hostportr&   r   r   r   fsid=   s    zArrowFSWrapper.fsidc                 C   s*   t |}|d }|dr&|dd  }|S )Npathz//   )r   
startswith)clsr+   opsr   r   r   _strip_protocolA   s
    
zArrowFSWrapper._strip_protocolFc                    sN     |}ddlm}  fdd j||D }|r<|S dd |D S d S )Nr   )FileSelectorc                    s   g | ]}  |qS r   )_make_entry.0entryr&   r   r   
<listcomp>N   s   z%ArrowFSWrapper.ls.<locals>.<listcomp>c                 S   s   g | ]}|d  qS )namer   r3   r   r   r   r6   U   s     )r0   
pyarrow.fsr1   r   get_file_info)r!   r+   detailr   r1   entriesr   r&   r   lsJ   s    

zArrowFSWrapper.lsc                 K   s$   |  |}| j|g\}| |S r$   )r0   r   r9   r2   )r!   r+   r   infor   r   r   r=   W   s    
zArrowFSWrapper.infoc                 C   s8   |  |}z| | W n tk
r.   Y dS X dS d S )NFT)r0   r=   r   r!   r+   r   r   r   exists\   s    
zArrowFSWrapper.existsc                 C   sn   ddl m} |j|jkrd}n<|j|jkr0d}n*|j|jkrVttjt	
tj|jnd}|j|j||jdS )Nr   )FileType	directoryfileother)r7   sizetypemtime)r8   r@   rE   Z	DirectoryFileZNotFoundr   r   r   osstrerrorr+   rD   rF   )r!   r=   r@   kindr   r   r   r2   e   s    zArrowFSWrapper._make_entryc                 K   s   |  |d}|  |d}| |d}| dtd }z6| |d}t|| W 5 Q R X | j	|| W n6 t
k
r   tt | j| W 5 Q R X  Y nX W 5 Q R X d S )Nr   rbz.tmp.   wb)r0   rstrip_opensecretsZ	token_hexopenshutilcopyfileobjr   moveBaseExceptionr   r   delete_file)r!   path1path2r   ZlstreamZ	tmp_fnameZrstreamr   r   r   cp_filex   s    
zArrowFSWrapper.cp_filec                 K   s2   |  |d}|  |d}| j|| d S )Nr   )r0   rN   r   rT   )r!   rW   rX   r   r   r   r   mv   s    zArrowFSWrapper.mvc                 C   s   |  |}| j| d S r$   )r0   r   rV   r>   r   r   r   rm_file   s    
zArrowFSWrapper.rm_fileNc                 C   sF   |  |d}| |r6|r,| j| qBtdn| j| d S )Nr   z0Can't delete directories without recursive=False)r0   rN   isdirr   
delete_dir
ValueErrorrV   )r!   r+   	recursiveZmaxdepthr   r   r   rm   s    

zArrowFSWrapper.rmrK   Tc           	      K   s   |dkr |r| j j}qR| j j}n2|dkr2| j j}n |dkrD| j j}ntd|i }|dksb|sttdd dkrd |d< ||f|}t	| ||||f|S )	NrK   rM   abz'unsupported mode for Arrow filesystem: .r      compression)
r   Zopen_input_fileZopen_input_streamZopen_output_streamZopen_append_streamr^   intr   split	ArrowFile)	r!   r+   mode
block_sizeseekabler   method_kwargsstreamr   r   r   rO      s    



zArrowFSWrapper._openc                 K   s2   |  |}|r| j|dd n| jj|dd d S )NT)exist_okFr_   )r0   makedirsr   
create_dir)r!   r+   Zcreate_parentsr   r   r   r   mkdir   s    
zArrowFSWrapper.mkdirc                 C   s   |  |}| jj|dd d S )NTro   )r0   r   rq   )r!   r+   rn   r   r   r   rp      s    
zArrowFSWrapper.makedirsc                 C   s   |  |}| j| d S r$   )r0   r   r]   r>   r   r   r   rmdir   s    
zArrowFSWrapper.rmdirc                 C   s   |  |}| j|jS r$   )r0   r   r9   rF   r>   r   r   r   modified   s    
zArrowFSWrapper.modifiedc                    s&   |dk|d< t  j|fd d d|S )N)Nr   rj   )startend)r   cat_file)r!   r+   ru   rv   r   r"   r   r   rw      s    zArrowFSWrapper.cat_filec                    s   d|d< t  j||f| d S )NFrj   )r   get_file)r!   ZrpathZlpathr   r"   r   r   rx      s    zArrowFSWrapper.get_file)F)FN)rK   NT)T)F)NN)__name__
__module____qualname____doc__Zroot_markerr    propertyr'   r   r*   classmethodr0   r<   r=   r?   r2   r   rY   rZ   r[   r`   rO   rr   rp   rs   rt   rw   rx   __classcell__r   r   r"   r   r   (   sB   



	





r   rm   readseektellwritereadablewritablecloserD   rj   c                   @   s&   e Zd ZdddZdd Zdd ZdS )	rg   Nc                 K   s.   || _ || _|| _|| _| | _| _|| _d S r$   )r+   rh   r   rm   	blocksizeri   r   )r!   r   rm   r+   rh   ri   r   r   r   r   r       s    zArrowFile.__init__c                 C   s   | S r$   r   r&   r   r   r   	__enter__   s    zArrowFile.__enter__c                 G   s   |   S r$   )r   )r!   r   r   r   r   __exit__   s    zArrowFile.__exit__)N)ry   rz   r{   r    r   r   r   r   r   r   rg      s   

rg   c                       s2   e Zd ZdZdZd fdd	Zed	d
 Z  ZS )HadoopFileSystemz]A wrapper on top of the pyarrow.fs.HadoopFileSystem
    to connect it's interface with fsspecZhdfsdefaultr   N   c           
         s:   ddl m} |||||||d}	t jf d|	i| dS )a;  

        Parameters
        ----------
        host: str
            Hostname, IP or "default" to try to read from Hadoop config
        port: int
            Port to connect on, or default from Hadoop config if 0
        user: str or None
            If given, connect as this username
        kerb_ticket: str or None
            If given, use this ticket for authentication
        replication: int
            set replication factor of file for write operations. default value is 3.
        extra_conf: None or dict
            Passed on to HadoopFileSystem
        r   )r   )r(   r)   userkerb_ticketreplication
extra_confr   N)r8   r   r   r    )
r!   r(   r)   r   r   r   r   r   r   r   r"   r   r   r       s    zHadoopFileSystem.__init__c                 C   s   t | }i }|dd r$|d |d< |dd r<|d |d< |dd rT|d |d< |dd rt|d }|dd rt|d d |d< |S )Nr(   usernamer   r)   Z	url_queryr   r   )r   getr   re   )r+   r/   outZqueriesr   r   r   _get_kwargs_from_urls"  s    z&HadoopFileSystem._get_kwargs_from_urls)r   r   NNr   N)	ry   rz   r{   r|   r'   r    staticmethodr   r   r   r   r"   r   r      s         'r   )r   iorH   rP   rR   
contextlibr   	functoolsr   r   urllib.parser   Zfsspec.specr   Zfsspec.utilsr   r   r	   r
   r   r   r   IOBaserg   r   r   r   r   r   <module>   s8    .