def __init__(self, local_address, ns_address, server_type, db_file):
"""Initialize the client."""
orb.Peer.__init__(self, local_address, ns_address, server_type)
self.peer_list = PeerList(self)
self.distributed_lock = DistributedLock(self, self.peer_list)
self.drwlock = DistributedReadWriteLock(self.distributed_lock)
self.db = database.Database(db_file)
self.dispatched_calls = {
"display_peers": self.peer_list.display_peers,
"acquire": self.distributed_lock.acquire,
"release": self.distributed_lock.release,
"request_token": self.distributed_lock.request_token,
"obtain_token": self.distributed_lock.obtain_token,
"display_status": self.distributed_lock.display_status
}
orb.Peer.start(self)
self.peer_list.initialize()
self.distributed_lock.initialize()
"""
Simple Database Server Driver
Team 3
Jack Andersen
"""
# Server consists of a database component and web interface component
from Server import database, web_interface
# Database adapter
db_instance = database.Database('simple.db')
def method_handler(parameters):
"""
Adapt HTTP request into database RPC
:param parameters: JSON-format dict with "method" selecting action and additional parameters
:return: JSON-format result
"""
mname = parameters["method"]
if not hasattr(db_instance, mname):
return {"result", "invalid_method"}
method = getattr(db_instance, mname)
return method({k: v for k, v in parameters.items() if k != "method"})
# Serve HTTP RPC
web_instance = web_interface.WebInterface(8080, method_handler)
web_instance.serve_forever()