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a +(Wg� � @ sz d Z ddlmZ ddlmZ ddlmZ ddlmZ ddlZddlmZ dd d �Z dd d �Z dd d�Z dd� Z dd� ZdS )zKShared utility methods for manipulating metadata of requests and resources.� )�absolute_import)�print_function)�division)�unicode_literalsN)�storage_v1_messagesFc C s |r d| d< d S )N�gzipzaccept-encoding� )Z headers_dict�compressed_encodingr r �(/opt/gsutil/gslib/utils/metadata_util.py� AddAcceptEncodingGzipIfNeeded s r c C s\ |du rt jjg d�}| du r"i } t�| �D ]*\}}|j�t jjjt|�t|�d�� q,|S )a Creates a custom MetadataValue object. Inserts the key/value pairs in entries. Args: entries: (Dict[str, Any] or None) The dictionary containing key/value pairs to insert into metadata. Both the key and value must be able to be casted to a string type. custom_metadata (apitools_messages.Object.MetadataValue or None): A pre-existing custom metadata object to add to. If one is not provided, a new one will be constructed. Returns: An apitools_messages.Object.MetadataValue. N)�additionalProperties��key�value) �apitools_messages�Object� MetadataValue�six� iteritemsr �append�AdditionalProperty�str)�entries�custom_metadatar r r r r �CreateCustomMetadata, s � ��r c sX z8t � fdd�| jjD �d�}|du r0d|fW S d|fW S tyR d|f Y S 0 dS )aE Filters a specific element out of an object's custom metadata. Args: obj_metadata: (apitools_messages.Object) The metadata for an object. search_key: (str) The custom metadata key to search for. default_value: (Any) The default value to use for the key if it cannot be found. Returns: (Tuple(bool, Any)) A tuple indicating if the value could be found in metadata and a value corresponding to search_key (the value at the specified key in custom metadata, or the default value if the specified key does not exist in the custom metadata). c 3 s | ]}|j � kr|jV qd S )Nr )�.0�attr�� search_keyr r � <genexpr>Z s �z3GetValueFromObjectCustomMetadata.<locals>.<genexpr>NFT)�next�metadatar �AttributeError)� obj_metadatar � default_valuer r r r � GetValueFromObjectCustomMetadataH s �� r% c C s | � d�p| � d�S )zDReturns true if header (which must be lowercase) is a custom header.z x-goog-meta-z x-amz-meta-)� startswith)�headerr r r �IsCustomMetadataHeaderd s r( c C s | j o| j �� �d�S )zGReturns true if the apitools_messages.Object has gzip content-encoding.r )�contentEncoding�lower�endswith)r# r r r �ObjectIsGzipEncodedi s �r, )F)NN)N)�__doc__� __future__r r r r r �"gslib.third_party.storage_apitoolsr r r r r% r( r, r r r r �<module> s �