def add_user(name='Sukhiya',
username='******',
nationality='Indian',
age=20,
dbIndex=None,
**kwargs):
dbName = underlyingDatabaseName(dbIndex)
middlewareDBName = middlewareDatabaseName(dbIndex)
user_id = underlyingDatabaseWrite.add_user(name,
username,
nationality,
age,
dbName=dbName)
if user_id is not None:
user = underlyingDatabaseRead.get_user_by_id(user_id, dbName=dbName)
if CRDT_UPDATE:
middlewareDatabaseWrite.update_user(user, dbName=middlewareDBName)
msg = messageBuild.get_user_update_msg(user)
if 'serverNodeIndex' in kwargs:
serverNodeIndex = kwargs.get('serverNodeIndex')
if serverNodeIndex is not None:
server_address = f'http://0.0.0.0:{str(6000+serverNodeIndex)}' + '/testSending'
try_internal_comm(server_address, msg)
def add_post(author, creation_time, content, likes=0, dbIndex=None, **kwargs):
dbName = underlyingDatabaseName(dbIndex)
middlewareDBName = middlewareDatabaseName(dbIndex)
post_id = underlyingDatabaseWrite.add_post(author,
creation_time,
content,
likes,
dbName=dbName)
if CRDT_UPDATE and post_id is not None:
post = underlyingDatabaseRead.get_post_by_id(post_id, dbName=dbName)
middlewareDatabaseWrite.add_post(username=author,
post=post,
dbName=middlewareDBName)
msg = messageBuild.get_post_updates_msg(author,
post,
update_type='add')
if 'serverNodeIndex' in kwargs:
serverNodeIndex = kwargs.get('serverNodeIndex')
if serverNodeIndex is not None:
server_address = f'http://0.0.0.0:{str(6000+serverNodeIndex)}' + '/testSending'
try_internal_comm(server_address, msg)
# print('Message : ', msg)
return post_id
def remove_follower(username, follower, dbIndex=None, **kwargs):
"""
username : this user who is being followed
follower: username of the person who is clicking the follow button to follow the user with username in first argument
"""
dbName = underlyingDatabaseName(dbIndex)
middlewareDBName = middlewareDatabaseName(dbIndex)
updated = underlyingDatabaseWrite.remove_follower(username,
follower,
dbName=dbIndex)
if CRDT_UPDATE and updated:
middlewareDatabaseWrite.remove_user_follower(username,
follower,
dbName=middlewareDBName)
msg = messageBuild.get_followers_update_msg(username,
follower,
update_type='follow')
if 'serverNodeIndex' in kwargs:
serverNodeIndex = kwargs.get('serverNodeIndex')
if serverNodeIndex is not None:
server_address = f'http://0.0.0.0:{str(6000+serverNodeIndex)}' + '/testSending'
try_internal_comm(server_address, msg)
def update_user_nationality(username, nationality, dbIndex=None, **kwargs):
dbName = underlyingDatabaseName(dbIndex)
middlewareDBName = middlewareDatabaseName(dbIndex)
updated = underlyingDatabaseWrite.update_user_nationality(username,
nationality,
dbName=dbName)
if CRDT_UPDATE and updated:
middlewareDatabaseWrite.update_user_nationality(
username, nationality, dbName=middlewareDBName)
msg = messageBuild.get_nationality_update_msg(username, nationality)
if 'serverNodeIndex' in kwargs:
serverNodeIndex = kwargs.get('serverNodeIndex')
if serverNodeIndex is not None:
server_address = f'http://0.0.0.0:{str(6000+serverNodeIndex)}' + '/testSending'
try_internal_comm(server_address, msg)
def reduce_post_likes(post_id, username, dbIndex=None, **kwargs):
dbName = underlyingDatabaseName(dbIndex)
middlewareDBName = middlewareDatabaseName(dbIndex)
updated = underlyingDatabaseWrite.reduce_post_likes(post_id,
username,
dbName=dbName)
if CRDT_UPDATE and updated:
middlewareDatabaseWrite.remove_liked_post(username,
post_id,
dbName=middlewareDBName)
msg = messageBuild.get_likedposts_updates_msg(post_id,
username,
update_type='disliked')
if 'serverNodeIndex' in kwargs:
serverNodeIndex = kwargs.get('serverNodeIndex')
if serverNodeIndex is not None:
server_address = f'http://0.0.0.0:{str(6000+serverNodeIndex)}' + '/testSending'
try_internal_comm(server_address, msg)
def deletePost(post_id, dbIndex=None, **kwargs):
dbName = underlyingDatabaseName(dbIndex)
middlewareDBName = middlewareDatabaseName(dbIndex)
updated = underlyingDatabaseWrite.deletePost(post_id, dbName=dbName)
if CRDT_UPDATE and updated:
post = underlyingDatabaseRead.get_post_by_id(post_id, dbName=dbName)
username = post.author
middlewareDatabaseWrite.remove_post(username,
post,
dbName=middlewareDBName)
msg = messageBuild.get_post_updates_msg(author,
post,
update_type='remove')
if 'serverNodeIndex' in kwargs:
serverNodeIndex = kwargs.get('serverNodeIndex')
if serverNodeIndex is not None:
server_address = f'http://0.0.0.0:{str(6000+serverNodeIndex)}' + '/testSending'
try_internal_comm(server_address, msg)
