Ejemplo n.º 1
0
    def handle_put(self, db, p):
        """Insert new file into the database and send data nodes to save
		   the file.
		"""
        # Fill code
        #getting fname, fsize from packet using the getFileInfo() function from Packet.py.
        #Storing the file in the database using the function InsertFile from mds_db.py.
        if db.InsertFile(p.getFileInfo()[0], p.getFileInfo()[1]):
            # Fill code

            print("file inserted")
            #creating response for the copy client.
            print("packet creation begin")
            packet_send = Packet()
            packet_send.BuildPutResponse(
                db.GetDataNodes()
            )  #db.GetDataNodes() gives me the data node list for the copy client.
            packet_response = packet_send.getEncodedPacket(
            )  #encoding packet to send to the copy client.
            self.request.sendall(packet_response)
            #print("packet sent")

            pass
        else:
            self.request.sendall("DUP")
	def handle_put(self, db, p):
		"""Insert new file into the database and send data nodes to save
		   the file.
		"""
	    # Fill code
		# packet that comes from copy client
		info = [p.packet['fname'], p.packet['fsize']]

		
		if db.InsertFile(info[0], info[1]):
			# Fill code
			nids = db.GetDataNodes()
			print(nids, 'nids line 67 file meta-data.py')

			dataNodes_packet = Packet()
			dataNodes_packet.BuildPutResponse(nids)
			self.request.sendall(dataNodes_packet.getEncodedPacket()) # send to the copy server
			
		else:
			self.request.sendall(b"DUP") 
Ejemplo n.º 3
0
    def handle_put(self, db, p):
        """Insert new file into the database and send data nodes to save
		   the file.
		"""

        # Fill code
        info = p.getFileInfo()
        print info
        packet = Packet()
        packet.BuildPutResponse(db.GetDataNodes())
        response = packet.getEncodedPacket()
        try:
            if db.InsertFile(info[0], info[1]):
                # Fill code
                self.request.send("ACK")
            else:
                self.request.send("DUP")

            self.request.send(response)
        except:
            self.request.send("NAK")
Ejemplo n.º 4
0
	def handle_put(self, db, p):
		"""
			Insert new file in database and respond with list of available data nodes.
				- List of tuples if succesfully inserted
				- DUP if trying to insert a duplicate of the file.
		"""

		# Get (fname, fsize) from packet
		fname, fsize = p.getFileInfo()
		print "\t- Retrieving file info from packet..."
	
		# Insert file into MDS and send list of available data nodes back to copy.py
		if db.InsertFile(fname, fsize):
			print "\t- Inserted file into MDS! Sending back available data nodes..."
			nodelist = db.GetDataNodes()
			q = Packet()
			q.BuildPutResponse(nodelist)
			self.request.sendall(q.getEncodedPacket())
			print "\t- Done!"
		else:
			self.request.sendall("DUP")
			print "\t- File already exists in MDS!"