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stream cost estimate command refactor

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This commit is contained in:
Lex Berezhny 2019-01-07 17:02:20 -05:00
parent 893b4fc3ca
commit 134c20da93
1 changed files with 20 additions and 30 deletions
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50
lbrynet/extras/daemon/Daemon.py
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@ -716,22 +716,22 @@ class Daemon(metaclass=JSONRPCServerType):
"output": tx.outputs[nout] "output": tx.outputs[nout]
} }
def _get_or_download_sd_blob(self, blob, sd_hash): async def _get_or_download_sd_blob(self, blob, sd_hash):
if blob: if blob:
return self.blob_manager.get_blob(blob[0]) return self.blob_manager.get_blob(blob[0])
return download_sd_blob( return await d2f(download_sd_blob(
sd_hash.decode(), self.blob_manager, self.component_manager.peer_finder, self.rate_limiter, sd_hash.decode(), self.blob_manager, self.component_manager.peer_finder, self.rate_limiter,
self.payment_rate_manager, self.wallet_manager, timeout=conf.settings['peer_search_timeout'], self.payment_rate_manager, self.wallet_manager, timeout=conf.settings['peer_search_timeout'],
download_mirrors=conf.settings['download_mirrors'] download_mirrors=conf.settings['download_mirrors']
) ))
def get_or_download_sd_blob(self, sd_hash): def get_or_download_sd_blob(self, sd_hash):
"""Return previously downloaded sd blob if already in the blob """Return previously downloaded sd blob if already in the blob
manager, otherwise download and return it manager, otherwise download and return it
""" """
d = self.blob_manager.completed_blobs([sd_hash.decode()]) return self._get_or_download_sd_blob(
d.addCallback(self._get_or_download_sd_blob, sd_hash) self.blob_manager.completed_blobs([sd_hash.decode()]), sd_hash
return d )
def get_size_from_sd_blob(self, sd_blob): def get_size_from_sd_blob(self, sd_blob):
""" """
@ -764,30 +764,22 @@ class Daemon(metaclass=JSONRPCServerType):
final_fee = self._add_key_fee_to_est_data_cost(claim.source_fee, cost) final_fee = self._add_key_fee_to_est_data_cost(claim.source_fee, cost)
return final_fee return final_fee
def get_est_cost_from_sd_hash(self, sd_hash): async def get_est_cost_from_sd_hash(self, sd_hash):
""" """
Get estimated cost from a sd hash Get estimated cost from a sd hash
""" """
sd_blob = await self.get_or_download_sd_blob(sd_hash)
stream_size = await d2f(self.get_size_from_sd_blob(sd_blob))
return self._get_est_cost_from_stream_size(stream_size)
d = self.get_or_download_sd_blob(sd_hash) async def _get_est_cost_from_metadata(self, metadata, name):
d.addCallback(self.get_size_from_sd_blob) try:
d.addCallback(self._get_est_cost_from_stream_size) return self._add_key_fee_to_est_data_cost(
return d metadata.source_fee, await self.get_est_cost_from_sd_hash(metadata.source_hash)
)
def _get_est_cost_from_metadata(self, metadata, name): except:
d = self.get_est_cost_from_sd_hash(metadata.source_hash) log.warning("Timeout getting blob for cost est for lbry://%s, using only key fee", name)
return 0.0
def _handle_err(err):
if isinstance(err, Failure):
log.warning(
"Timeout getting blob for cost est for lbry://%s, using only key fee", name)
return 0.0
raise err
d.addErrback(_handle_err)
d.addCallback(lambda data_cost: self._add_key_fee_to_est_data_cost(metadata.source_fee,
data_cost))
return d
def _add_key_fee_to_est_data_cost(self, fee, data_cost): def _add_key_fee_to_est_data_cost(self, fee, data_cost):
fee_amount = 0.0 if not fee else self.exchange_rate_manager.convert_currency(fee.currency, fee_amount = 0.0 if not fee else self.exchange_rate_manager.convert_currency(fee.currency,
@ -806,15 +798,13 @@ class Daemon(metaclass=JSONRPCServerType):
else: else:
claim_response = None claim_response = None
result = None
if claim_response and 'claim' in claim_response: if claim_response and 'claim' in claim_response:
if 'value' in claim_response['claim'] and claim_response['claim']['value'] is not None: if 'value' in claim_response['claim'] and claim_response['claim']['value'] is not None:
claim_value = ClaimDict.load_dict(claim_response['claim']['value']) claim_value = ClaimDict.load_dict(claim_response['claim']['value'])
cost = await d2f(self._get_est_cost_from_metadata(claim_value, uri)) cost = await self._get_est_cost_from_metadata(claim_value, uri)
result = round(cost, 5) return round(cost, 5)
else: else:
log.warning("Failed to estimate cost for %s", uri) log.warning("Failed to estimate cost for %s", uri)
return result
def get_est_cost(self, uri, size=None): def get_est_cost(self, uri, size=None):
"""Get a cost estimate for a lbry stream, if size is not provided the """Get a cost estimate for a lbry stream, if size is not provided the