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A class which handles loading the pricing files.
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Return pricing for the provided driver.
NOTE: This method will also cache data for the requested driver
memory.
We intentionally only cache data for the requested driver and not all the
pricing data since the whole pricing data is quite large (~2 MB). This
way we avoid unncessary memory overhead.
:type driver_type: ``str``
:param driver_type: Driver type ('compute' or 'storage')
:type driver_name: ``str``
:param driver_name: Driver name
:type pricing_file_path: ``str``
:param pricing_file_path: Custom path to a price file. If not provided
it uses a default path.
:type cache_all: ``bool``
:param cache_all: True to cache pricing data in memory for all the drivers
and not just for the requested one.
:rtype: ``dict``
:return: Dictionary with pricing where a key name is size ID and
the value is a price.
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Populate the driver pricing dictionary.
:type driver_type: ``str``
:param driver_type: Driver type ('compute' or 'storage')
:type driver_name: ``str``
:param driver_name: Driver name
:type pricing: ``dict``
:param pricing: Dictionary where a key is a size ID and a value is a price.
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Return price for the provided size.
:type driver_type: ``str``
:param driver_type: Driver type ('compute' or 'storage')
:type driver_name: ``str``
:param driver_name: Driver name
:type size_id: ``str`` or ``int``
:param size_id: Unique size ID (can be an integer or a string - depends on
the driver)
:rtype: ``float``
:return: Size price.
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Invalidate pricing cache for all the drivers.
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Invalidate pricing cache for all the drivers.
Note: This method does the same thing as invalidate_pricing_cache and is
here for backward compatibility reasons.
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Invalidate the cache for the specified driver.
:type driver_type: ``str``
:param driver_type: Driver type ('compute' or 'storage')
:type driver_name: ``str``
:param driver_name: Driver name
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Download pricing file from the file_url and save it to file_path.
:type file_url: ``str``
:param file_url: URL pointing to the pricing file.
:type file_path: ``str``
:param file_path: Path where a download pricing file will be saved.
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