log.py

class LogEntry(object):
	def __init__(self, clientId, requestId, data, term):
		self._clientId = clientId
		self._requestId = requestId
		self._data = data
		self._term = term

	def __repr__(self):
		return "\nclientId: "+ str(self._clientId) + \
		"\nrequestId: " + str(self._requestId) + \
		"\ndata: " + str(self._data) + \
		"\nterm: " + str(self._term) + "\n "

class Log(object):
	def __init__(self, server_id):
		self._firstIndex = 0
		self._length = 1;
		self._entries = [LogEntry(-1, 0, None, 0), ]

	def __repr__(self):
		return "\nfirstIndex " + str(self._firstIndex) + \
				"\nlength " + str(self._length) + \
				"\nEntries" + str(self._entries)

	def push(self, value):
		self._length += 1
		print value, type(value)
		trans = LogEntry(value['_clientId'], value['_requestId'], value['_data'], value['_term'])
		self._entries.append(trans)

	def pop(self):
		self._length -= 1
		self._entries.pop()

	def shift(self):
		pass

	def slice(self, from1, to):
		return self._entries[from1:to]