def compute( dsconf, community, start, end ):
"""Compute community reciprocities with 'seconds' resolution."""
c.log( 'Starting' )
reciprocities = collections.defaultdict(float)
# Get all messages and replies for 'users'
messages = ds.get_messages(dsconf, start, end, community)
messages = common.build_msgmap(messages, ds.field('messages','user_id'))
replies = common.build_replies(messages, ds.fields('messages'))
# Get requested users reciprocities
c.log( 'Computing reciprocities ...' )
for (user,user_messages) in messages.iteritems():
# Calculate the sum of reply delays
delays_sum = dt.timedelta( 0 )
for reply in replies[user]:
if reply[2].total_seconds() >= 0: # Ignore negative delay replies
delays_sum += reply[2] # txy component
# Calculate reciprocity
if not replies[user]:
reciprocities[user] = float('inf')
else:
reciprocities[user] = delays_sum.total_seconds() * 1.0 / \
len( replies[user] )
# Return users reciprocities
c.log( 'Finished' )
return reciprocities
def compute( dsconf, community, start, end ):
"""Compute community popularities."""
c.log( 'Starting' )
popularities = collections.defaultdict(float)
# Get all messages and replies for the community
messages = ds.get_messages(dsconf, start, end, community)
messages = common.build_msgmap(messages, ds.field('messages','user_id'))
replies = common.build_replies(messages, ds.fields('messages'))
# Get requested users popularities
c.log( 'Computing users popularities ...' )
for (user,user_messages) in messages.iteritems():
popularities[user] = len( replies[user] ) * 1.0 / \
len( user_messages )
# Return users popularities
c.log( 'Finished' )
return popularities
