U
    O8c                     @   sR   d dl Z d dlZd dlmZ ddlmZ e dZdd Zddd	Z	dd
dZ
dS )    N)
xform_name   )ResourceLoadExceptionz	\[(.*)\]$c                 C   sB   | j jdkr2t| dr |   nt| jj dt|| j jS )aE  
    Get a data member from a parent using a JMESPath search query,
    loading the parent if required. If the parent cannot be loaded
    and no data is present then an exception is raised.

    :type parent: ServiceResource
    :param parent: The resource instance to which contains data we
                   are interested in.
    :type path: string
    :param path: The JMESPath expression to query
    :raises ResourceLoadException: When no data is present and the
                                   resource cannot be loaded.
    :returns: The queried data or ``None``.
    Nloadz has no load method!)	metadatahasattrr   r   	__class____name__jmespathsearch)parentpath r   :/tmp/pip-unpacked-wheel-hml_76kf/boto3/resources/params.pyget_data_member   s    

r   c                 C   s   |dkri }|j D ]x}|j}|j}|dkr<t| t|j}n@|dkrRt| |j}n*|dkrb|j}n|dkrnqnt	d| t
|||| q|S )aX  
    Handle request parameters that can be filled in from identifiers,
    resource data members or constants.

    By passing ``params``, you can invoke this method multiple times and
    build up a parameter dict over time, which is particularly useful
    for reverse JMESPath expressions that append to lists.

    :type parent: ServiceResource
    :param parent: The resource instance to which this action is attached.
    :type request_model: :py:class:`~boto3.resources.model.Request`
    :param request_model: The action request model.
    :type params: dict
    :param params: If set, then add to this existing dict. It is both
                   edited in-place and returned.
    :type index: int
    :param index: The position of an item within a list
    :rtype: dict
    :return: Pre-filled parameters to be sent to the request operation.
    N
identifierr   )stringintegerbooleaninputzUnsupported source type: )paramssourcetargetgetattrr   namer   r   valueNotImplementedErrorbuild_param_structure)r   Zrequest_modelr   indexparamr   r   r   r   r   r   create_request_parameters3   s     
r!   c           	      C   sL  | }| d}t|D ].\}}t|}|r|dr|ddkrV|dd }qt|d}|dtt|d   }nd}|dd }||kst|| t	sg ||< |dkrt|| }t|| |kr|| 
i  q|t|d kr||| |< n|| | }q||kr"i ||< |t|d kr>|||< q|| }qdS )a  
    This method provides a basic reverse JMESPath implementation that
    lets you go from a JMESPath-like string to a possibly deeply nested
    object. The ``params`` are mutated in-place, so subsequent calls
    can modify the same element by its index.

        >>> build_param_structure(params, 'test[0]', 1)
        >>> print(params)
        {'test': [1]}

        >>> build_param_structure(params, 'foo.bar[0].baz', 'hello world')
        >>> print(params)
        {'test': [1], 'foo': {'bar': [{'baz': 'hello, world'}]}}

    .   *Nz[])split	enumerateINDEX_REr   groupintlenstr
isinstancelistappend)	r   r   r   r   pospartsipartresultr   r   r   r   d   s4    




r   )NN)N)rer   Zbotocorer   
exceptionsr   compiler)   r   r!   r   r   r   r   r   <module>   s   

1