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Never cache microscope state

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This commit is contained in:
Joel Collins 2020-07-01 15:50:31 +01:00
parent 6c0017be5a
commit d9fd00b255
1 changed files with 26 additions and 18 deletions
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44
openflexure_microscope/microscope.py
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@ -298,33 +298,41 @@ class Microscope:
def force_get_metadata(self):
"""
Microscope system metadata, to be applied to basically all captures
Read cachable bits of microscope metadata.
Currently ID, settings, and configuration can be cached
"""
settings = self.read_settings(full=False)
state = self.state
configuration = self.configuration
system_metadata = {
"id": self.id,
"settings": settings,
"state": state,
"configuration": configuration,
"settings": self.read_settings(full=False),
"configuration": self.get_configuration(),
}
return system_metadata
def get_metadata(self, cache_key=None):
logging.debug(f"Looking for cache key {cache_key}")
"""
Read microscope metadata, with partial caching
"""
metadata = {}
# Load cached bits of metadata
if cache_key:
cached_metadata = self.metadata_cache.get(cache_key, None)
if cached_metadata:
logging.debug(f"Reusing cached microscope metadata: {cache_key}")
return cached_metadata
else:
full_metadata = self.force_get_metadata()
self.metadata_cache[cache_key] = full_metadata
return full_metadata
logging.debug("Generating full microscope metadata")
return self.force_get_metadata()
logging.debug(f"Reading cached microscope metadata: {cache_key}")
metadata = self.metadata_cache.get(cache_key, None)
if not metadata:
logging.debug(f"Building and caching microscope metadata: {cache_key}")
metadata = self.force_get_metadata()
self.metadata_cache[cache_key] = metadata
else:
logging.debug(f"Building microscope metadata: {cache_key}")
metadata = self.force_get_metadata()
# Keys that should never be cached
metadata.update({
"state": self.state,
})
return metadata
@property
def metadata(self):