rename mq

mq/scripts/mq.py

@@ -0,0 +1,114 @@
+# coding=utf-8
+import logging
+
+import redis
+import json
+
+from django.db import transaction
+
+from judge.judger_controller.settings import redis_config
+from judge.judger.result import result
+from submission.models import Submission
+from problem.models import Problem
+from contest.models import ContestProblem, Contest, ContestSubmission
+from account.models import User
+
+logger = logging.getLogger("app_info")
+
+
+class MessageQueue(object):
+    def __init__(self):
+        self.conn = redis.StrictRedis(host=redis_config["host"], port=redis_config["port"], db=redis_config["db"])
+        self.queue = 'queue'
+
+    def listen_task(self):
+        while True:
+            submission_id = self.conn.blpop(self.queue, 0)[1]
+            logger.debug("receive submission_id: " + submission_id)
+            try:
+                submission = Submission.objects.get(id=submission_id)
+            except Submission.DoesNotExist:
+                logger.warning("Submission does not exist, submission_id: " + submission_id)
+                continue
+
+            if submission.result == result["accepted"] and not submission.contest_id:
+                # 更新普通题目的 ac 计数器
+                try:
+                    problem = Problem.objects.get(id=submission.problem_id)
+                    problem.total_accepted_number += 1
+                    problem.save()
+                except Problem.DoesNotExist:
+                    logger.warning("Submission problem does not exist, submission_id: " + submission_id)
+                    continue
+                # 更新该用户的解题状态
+                try:
+                    user = User.objects.get(pk=submission.user_id)
+                except User.DoesNotExist:
+                    logger.warning("Submission user does not exist, submission_id: " + submission_id)
+                    continue
+                problems_status = json.loads(user.problems_status)
+                problems_status[str(problem.id)] = 1
+                user.problems_status = json.dumps(problems_status)
+                user.save()
+
+                # 普通题目的话，到这里就结束了
+                continue
+
+            # 能运行到这里的都是比赛题目
+            try:
+                contest = Contest.objects.get(id=submission.contest_id)
+                contest_problem = ContestProblem.objects.get(contest=contest, id=submission.problem_id)
+            except Contest.DoesNotExist:
+                logger.warning("Submission contest does not exist, submission_id: " + submission_id)
+                continue
+            except ContestProblem.DoesNotExist:
+                logger.warning("Submission problem does not exist, submission_id: " + submission_id)
+                continue
+
+            try:
+                contest_submission = ContestSubmission.objects.get(user_id=submission.user_id, contest=contest,
+                                                                   problem_id=contest_problem.id)
+                # 提交次数加1
+                with transaction.atomic():
+                    if submission.result == result["accepted"]:
+                        # 避免这道题已经 ac 了，但是又重新提交了一遍
+                        if not contest_submission.ac:
+                            # 这种情况是这个题目前处于错误状态，就使用已经存储了的罚时加上这道题的实际用时
+                            contest_submission.ac_time = int((submission.create_time - contest.start_time).total_seconds())
+                            contest_submission.total_time += contest_submission.ac_time
+                            contest_submission.total_submission_number += 1
+                        # 标记为已经通过
+                        if contest_problem.total_accepted_number == 0:
+                            contest_submission.first_achieved = True
+                        contest_submission.ac = True
+                        # contest problem ac 计数器加1
+                        contest_problem.total_accepted_number += 1
+                    else:
+                        # 如果这个提交是错误的，就罚时20分钟
+                        contest_submission.total_time += 1200
+                        contest_submission.total_submission_number += 1
+                    contest_submission.save()
+                    contest_problem.save()
+            except ContestSubmission.DoesNotExist:
+                # 第一次提交
+                with transaction.atomic():
+                    is_ac = submission.result == result["accepted"]
+                    first_achieved = False
+                    ac_time = 0
+                    if is_ac:
+                        ac_time = int((submission.create_time - contest.start_time).total_seconds())
+                        total_time = int((submission.create_time - contest.start_time).total_seconds())
+                        # 增加题目总的ac数计数器
+                        if contest_problem.total_accepted_number == 0:
+                            first_achieved = True
+                        contest_problem.total_accepted_number += 1
+                        contest_problem.save()
+                    else:
+                        # 没过罚时20分钟
+                        total_time = 1200
+                    ContestSubmission.objects.create(user_id=submission.user_id, contest=contest, problem=contest_problem,
+                                                     ac=is_ac, total_time=total_time, first_achieved=first_achieved,
+                                                     ac_time=ac_time)
+
+logger.debug("Start message queue")
+MessageQueue().listen_task()