# # Copyright (C) 2006-2010 Nexedi SA # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; either version 2 # of the License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. from neo.protocol import Packets from neo.storage.handlers import BaseClientAndStorageOperationHandler from neo.storage.transactions import ConflictError, DelayedError class ClientOperationHandler(BaseClientAndStorageOperationHandler): def timeoutExpired(self, conn): self.app.tm.abortFor(conn.getUUID()) BaseClientAndStorageOperationHandler.timeoutExpired(self, conn) def connectionClosed(self, conn): self.app.tm.abortFor(conn.getUUID()) BaseClientAndStorageOperationHandler.connectionClosed(self, conn) def peerBroken(self, conn): self.app.tm.abortFor(conn.getUUID()) BaseClientAndStorageOperationHandler.peerBroken(self, conn) def abortTransaction(self, conn, tid): self.app.tm.abort(tid) def askStoreTransaction(self, conn, tid, user, desc, ext, oid_list): uuid = conn.getUUID() self.app.tm.storeTransaction(uuid, tid, oid_list, user, desc, ext, False) conn.answer(Packets.AnswerStoreTransaction(tid)) def askStoreObject(self, conn, oid, serial, compression, checksum, data, tid): uuid = conn.getUUID() try: self.app.tm.storeObject(uuid, tid, serial, oid, compression, checksum, data) conn.answer(Packets.AnswerStoreObject(0, oid, serial)) except ConflictError, err: # resolvable or not tid_or_serial = err.getTID() conn.answer(Packets.AnswerStoreObject(1, oid, tid_or_serial)) except DelayedError: # locked by a previous transaction, retry later self.app.queueEvent(self.askStoreObject, conn, oid, serial, compression, checksum, data, tid)