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Source code for galaxy.quota

"""
Galaxy Quotas
"""
import logging

import galaxy.util

log = logging.getLogger(__name__)


[docs]class NoQuotaAgent( object ): """Base quota agent, always returns no quota"""
[docs] def __init__( self, model ): self.model = model self.sa_session = model.context
[docs] def get_quota( self, user, nice_size=False ): return None
@property def default_quota( self ): return None
[docs] def get_usage( self, trans=None, user=False, history=False ): if trans: user = trans.user history = trans.history assert user is not False, "Could not determine user." if not user: assert history, "Could not determine anonymous user's history." usage = history.disk_size else: usage = user.total_disk_usage return usage
[docs] def get_percent( self, trans=None, user=False, history=False, usage=False, quota=False ): return None
[docs] def get_user_quotas( self, user ): return []
[docs]class QuotaAgent( NoQuotaAgent ): """Class that handles galaxy quotas"""
[docs] def get_quota( self, user, nice_size=False ): """ Calculated like so: 1. Anonymous users get the default quota. 2. Logged in users start with the highest of their associated '=' quotas or the default quota, if there are no associated '=' quotas. If an '=' unlimited (-1 in the database) quota is found during this process, the user has no quota (aka unlimited). 3. Quota is increased or decreased by any corresponding '+' or '-' quotas. """ if not user: return self.default_unregistered_quota quotas = [] for group in [ uga.group for uga in user.groups ]: for quota in [ gqa.quota for gqa in group.quotas ]: if quota not in quotas: quotas.append( quota ) for quota in [ uqa.quota for uqa in user.quotas ]: if quota not in quotas: quotas.append( quota ) use_default = True max = 0 adjustment = 0 rval = 0 for quota in quotas: if quota.deleted: continue if quota.operation == '=' and quota.bytes == -1: rval = None break elif quota.operation == '=': use_default = False if quota.bytes > max: max = quota.bytes elif quota.operation == '+': adjustment += quota.bytes elif quota.operation == '-': adjustment -= quota.bytes if use_default: max = self.default_registered_quota if max is None: rval = None if rval is not None: rval = max + adjustment if rval <= 0: rval = 0 if nice_size: if rval is not None: rval = galaxy.util.nice_size( rval ) else: rval = 'unlimited' return rval
@property def default_unregistered_quota( self ): return self._default_quota( self.model.DefaultQuotaAssociation.types.UNREGISTERED ) @property def default_registered_quota( self ): return self._default_quota( self.model.DefaultQuotaAssociation.types.REGISTERED ) def _default_quota( self, default_type ): dqa = self.sa_session.query( self.model.DefaultQuotaAssociation ).filter( self.model.DefaultQuotaAssociation.table.c.type == default_type ).first() if not dqa: return None if dqa.quota.bytes < 0: return None return dqa.quota.bytes
[docs] def set_default_quota( self, default_type, quota ): # Unset the current default(s) associated with this quota, if there are any for dqa in quota.default: self.sa_session.delete( dqa ) # Unset the current users/groups associated with this quota for uqa in quota.users: self.sa_session.delete( uqa ) for gqa in quota.groups: self.sa_session.delete( gqa ) # Find the old default, assign the new quota if it exists dqa = self.sa_session.query( self.model.DefaultQuotaAssociation ).filter( self.model.DefaultQuotaAssociation.table.c.type == default_type ).first() if dqa: dqa.quota = quota # Or create if necessary else: dqa = self.model.DefaultQuotaAssociation( default_type, quota ) self.sa_session.add( dqa ) self.sa_session.flush()
[docs] def get_percent( self, trans=None, user=False, history=False, usage=False, quota=False ): """ Return the percentage of any storage quota applicable to the user/transaction. """ # if trans passed, use it to get the user, history (instead of/override vals passed) if trans: user = trans.user history = trans.history # if quota wasn't passed, attempt to get the quota if quota is False: quota = self.get_quota( user ) # return none if no applicable quotas or quotas disabled if quota is None: return None # get the usage, if it wasn't passed if usage is False: usage = self.get_usage( trans, user, history ) try: return min( ( int( float( usage ) / quota * 100 ), 100 ) ) except ZeroDivisionError: return 100
[docs] def set_entity_quota_associations( self, quotas=[], users=[], groups=[], delete_existing_assocs=True ): for quota in quotas: if delete_existing_assocs: flush_needed = False for a in quota.users + quota.groups: self.sa_session.delete( a ) flush_needed = True if flush_needed: self.sa_session.flush() for user in users: uqa = self.model.UserQuotaAssociation( user, quota ) self.sa_session.add( uqa ) for group in groups: gqa = self.model.GroupQuotaAssociation( group, quota ) self.sa_session.add( gqa ) self.sa_session.flush()
[docs] def get_user_quotas( self, user ): rval = [] if not user: dqa = self.sa_session.query( self.model.DefaultQuotaAssociation ) \ .filter( self.model.DefaultQuotaAssociation.table.c.type == self.model.DefaultQuotaAssociation.types.UNREGISTERED ).first() if dqa: rval.append( dqa.quota ) else: dqa = self.sa_session.query( self.model.DefaultQuotaAssociation ) \ .filter( self.model.DefaultQuotaAssociation.table.c.type == self.model.DefaultQuotaAssociation.types.REGISTERED ).first() if dqa: rval.append( dqa.quota ) for uqa in user.quotas: rval.append( uqa.quota ) for group in [ uga.group for uga in user.groups ]: for gqa in group.quotas: rval.append( gqa.quota ) return rval