Download and Cache
Resource Base Class
Bases: ABC
Source code in biocypher/_get.py
__init__(name, url_s, lifetime=0)
Define the base class for a resource.
A Resource is a file, a list of files, an API request, or a list of API requests, any of which can be downloaded from the given URL(s) and cached locally. This class implements checks of the minimum requirements for a resource, to be implemented by a biocypher adapter.
name (str): The name of the resource.
url_s (str | list[str]): The URL or URLs of the resource.
lifetime (int): The lifetime of the resource in days. If 0, the
resource is considered to be permanent.
Source code in biocypher/_get.py
API Request
Bases: Resource
Source code in biocypher/_get.py
__init__(name, url_s, lifetime=0)
Represent basic information for an API Request.
name(str): The name of the API Request.
url_s(str|list): The URL of the API endpoint.
lifetime(int): The lifetime of the API Request in days. If 0, the
API Request is cached indefinitely.
Source code in biocypher/_get.py
File Download
Bases: Resource
Source code in biocypher/_get.py
__init__(name, url_s, lifetime=0, is_dir=False)
Represent basic information for a File Download.
name(str): The name of the File Download.
url_s(str|list[str]): The URL(s) of the File Download.
lifetime(int): The lifetime of the File Download in days. If 0, the
File Download is cached indefinitely.
is_dir (bool): Whether the URL points to a directory or not.
Source code in biocypher/_get.py
Downloader
Source code in biocypher/_get.py
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__init__(cache_dir=None)
Initialise the Downloader.
The Downloader is a class that manages resources that can be downloaded and cached locally. It manages the lifetime of downloaded resources by keeping a JSON record of the download date of each resource.
cache_dir (str): The directory where the resources are cached. If
not given, a temporary directory is created.
Source code in biocypher/_get.py
_download_api_request(api_request)
Download an API request and return the path.
api_request (APIRequest): The API request result that is being cached.
list[str]: The path to the cached API request.
Source code in biocypher/_get.py
_download_files(cache, file_download)
Download a resource.
Download the resource given it is a file or a directory and return the path.
cache (bool): Whether to cache the resource or not.
file_download (FileDownload): The resource to download.
list[str]: The path or paths to the downloaded resource(s).
Source code in biocypher/_get.py
_download_or_cache(resource, cache=True)
Download a resource if it is not cached or exceeded its lifetime.
resource (Resource): The resource to download.
list[str]: The path or paths to the downloaded resource(s).
Source code in biocypher/_get.py
_get_cache_record(resource)
Get the cache record of a resource.
resource (Resource): The resource to get the cache record of.
The cache record of the resource.
Source code in biocypher/_get.py
_get_files(file_download)
Get the files contained in a directory file.
file_download (FileDownload): The directory file.
list: The files contained in the directory.
Source code in biocypher/_get.py
_is_cache_expired(resource)
Check if resource or API request cache is expired.
resource (Resource): The resource to download.
bool: cache is expired or not.
Source code in biocypher/_get.py
_load_cache_dict()
Load the cache dictionary from the cache file. Create an empty cache file if it does not exist.
Source code in biocypher/_get.py
_retrieve(url, fname, path, known_hash=None)
Retrieve a file from a URL using Pooch. Infer type of file from extension and use appropriate processor.
url (str): The URL to retrieve the file from.
fname (str): The name of the file.
path (str): The path to the file.
Source code in biocypher/_get.py
_update_cache_record(resource)
Update the cache record of a resource.
resource (Resource): The resource to update the cache record of.
Source code in biocypher/_get.py
download(*resources)
Download one or multiple resources.
Load from cache if the resource is already downloaded and the cache is not expired.
resources (Resource): The resource(s) to download or load from
cache.
list[str]: The path or paths to the resource(s) that were downloaded
or loaded from cache.
Source code in biocypher/_get.py
get_cached_version(resource)
Get the cached version of a resource.
resource (Resource): The resource to get the cached version of.
list[str]: The paths to the cached resource(s).