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validators.cpython-36.pyc
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Arguments: base_uri (str): The URI of the referring document referrer: The actual referring document store (dict): A mapping from URIs to documents to cache cache_remote (bool): Whether remote refs should be cached after first resolution handlers (dict): A mapping from URI schemes to functions that should be used to retrieve them urljoin_cache (functools.lru_cache): A cache that will be used for caching the results of joining the resolution scope to subscopes. remote_cache (functools.lru_cache): A cache that will be used for caching the results of resolved remote URLs. TNc C s� |d krt d�t�}|d kr*t d�| j�}|| _|| _t|�| _|g| _tj dd� t t �D ��| _ | j j |� || j |< || _|| _d S )Ni c s s | ]\}}||j fV qd S )N)r )rD r r. r r r rE $ s z'RefResolver.__init__.<locals>.<genexpr>)r r �resolve_from_url�referrer� cache_remoter �handlers� _scopes_stackr �URIDictr r �storer" �_urljoin_cache� _remote_cache)r( �base_urirn rs ro rp Z urljoin_cacheZ remote_cacher r r r* s zRefResolver.__init__c O s | |j dd�|f|�|�S )z� Construct a resolver from a JSON schema object. Arguments: schema: the referring schema Returns: :class:`RefResolver` r rU )r0 )r r' r> r? r r r r$ - s zRefResolver.from_schemac C s | j j| j| j|�� d S )N)rq �appendrt �resolution_scope)r( r7 r r r r1 @ s zRefResolver.push_scopec C s0 y| j j� W n tk r* td��Y nX d S )NznFailed to pop the scope from an empty stack. `pop_scope()` should only be called once for every `push_scope()`)rq �pop� IndexErrorr )r( r r r r5 E s zRefResolver.pop_scopec C s | j d S )N� ���)rq )r( r r r rx O s z RefResolver.resolution_scopec C s t | j�\}}|S )N)r rx )r( �uri�_r r r rv S s zRefResolver.base_uric c s$ | j |� z d V W d | j� X d S )N)r1 r5 )r( r7 r r r �in_scopeX s zRefResolver.in_scopec c s2 | j |�\}}| j|� z |V W d| j� X dS )z� Context manager which resolves a JSON ``ref`` and enters the resolution scope of this ref. Arguments: ref (str): The reference to resolve N)�resolver1 r5 )r( r8 �urlZresolvedr r r � resolving` s zRefResolver.resolvingc C s | j | j|�}|| j|�fS )N)rt rx ru )r( r8 r� r r r r� u s zRefResolver.resolvec C sv t |�\}}y| j| }W nN tk rh y| j|�}W n* tk rb } zt|��W Y d d }~X nX Y nX | j||�S )N)r rs �KeyError�resolve_remote� Exceptionr �resolve_fragment)r( r� �fragment�document�excr r r rm y s z RefResolver.resolve_from_urlc C s� |j d�}|r t|�jd�ng }x~|D ]v}|jdd�jdd�}t|t�rjy t|�}W n tk rh Y nX y || }W q& tt fk r� t d| ��Y q&X q&W |S )z� Resolve a ``fragment`` within the referenced ``document``. Arguments: document: The referrant document fragment (str): a URI fragment to resolve within it �/z~1z~0�~z Unresolvable JSON pointer: %r) �lstripr �splitrX rF r �int� ValueError� TypeError� LookupErrorr )r( r� r� �parts�partr r r r� � s z RefResolver.resolve_fragmentc C s� t |�j}|| jkr$| j| |�}n`|dkrltrlttjdd�dk rlttjj�r^tj|�j� }q�tj|�j}ntj t |�j � j d��}| j r�|| j|< |S )a� Resolve a remote ``uri``. If called directly, does not check the store first, but after retrieving the document at the specified URI it will be saved in the store if :attr:`cache_remote` is True. .. note:: If the requests_ library is present, ``jsonschema`` will use it to request the remote ``uri``, so that the correct encoding is detected and used. If it isn't, or if the scheme of the ``uri`` is not ``http`` or ``https``, UTF-8 is assumed. Arguments: uri (str): The URI to resolve Returns: The retrieved document .. _requests: http://pypi.python.org/pypi/requests/ �http�https�jsonNzutf-8)r� r� )r �schemerp �requests�getattrZResponse�callabler� r0 �loadsr �read�decodero rs )r( r} r� �resultr r r r� � s zRefResolver.resolve_remote)rM rN rO �__doc__r* rP r$ r1 r5 �propertyrx rv � contextlib�contextmanagerr r� r� rm r� r� r r r r r# � s" % %r# c C s |t kr t}tj| jdd�|�S )Nz$schemarU )�_unset�Draft4Validatorr r0 )r' �defaultr r r � validator_for� s r� c O s4 |dkrt |�}|j|� ||f|�|�j| � dS )av Validate an instance under the given schema. >>> validate([2, 3, 4], {"maxItems": 2}) Traceback (most recent call last): ... ValidationError: [2, 3, 4] is too long :func:`validate` will first verify that the provided schema is itself valid, since not doing so can lead to less obvious error messages and fail in less obvious or consistent ways. If you know you have a valid schema already or don't care, you might prefer using the :meth:`~IValidator.validate` method directly on a specific validator (e.g. :meth:`Draft4Validator.validate`). Arguments: instance: The instance to validate schema: The schema to validate with cls (:class:`IValidator`): The class that will be used to validate the instance. If the ``cls`` argument is not provided, two things will happen in accordance with the specification. First, if the schema has a :validator:`$schema` property containing a known meta-schema [#]_ then the proper validator will be used. The specification recommends that all schemas contain :validator:`$schema` properties for this reason. If no :validator:`$schema` property is found, the default validator class is :class:`Draft4Validator`. Any other provided positional and keyword arguments will be passed on when instantiating the ``cls``. Raises: :exc:`ValidationError` if the instance is invalid :exc:`SchemaError` if the schema itself is invalid .. rubric:: Footnotes .. [#] known by a validator registered with :func:`validates` N)r� r- r@ )r/ r' r r> r? r r r r@ � s 3 r@ )N)N)GZ __future__r r� r� rB r� � ImportErrorZ jsonschemar r Zjsonschema.compatr r r r r r r r r r Zjsonschema.exceptionsr r r r ZUnsetr� r rr r r rY rZ Z load_schemar8 r[ r\ r] Zdisallow_draft3rg r^ Zextends_draft3r_ r` ra rb rc rd re rf rh ri Zproperties_draft3Z type_draft3rk ZDraft3ValidatorZ allOf_draft4Z anyOf_draft4ZmaxProperties_draft4ZminProperties_draft4Z not_draft4Z oneOf_draft4Zproperties_draft4Zrequired_draft4Z type_draft4r� r r# r� r@ r r r r �<module> s� 0 h z