| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| #ifndef PULSAR_PATTERN_MULTI_TOPICS_CONSUMER_HEADER |
| #define PULSAR_PATTERN_MULTI_TOPICS_CONSUMER_HEADER |
| #include "ConsumerImpl.h" |
| #include "ClientImpl.h" |
| #include <lib/TopicName.h> |
| #include <lib/NamespaceName.h> |
| #include "MultiTopicsConsumerImpl.h" |
| #include <memory> |
| |
| #ifdef PULSAR_USE_BOOST_REGEX |
| #include <boost/regex.hpp> |
| #define PULSAR_REGEX_NAMESPACE boost |
| #else |
| #include <regex> |
| #define PULSAR_REGEX_NAMESPACE std |
| #endif |
| |
| namespace pulsar { |
| |
| class PatternMultiTopicsConsumerImpl; |
| |
| class PatternMultiTopicsConsumerImpl : public MultiTopicsConsumerImpl { |
| public: |
| // currently we support topics under same namespace, so `patternString` is a regex, |
| // which only contains after namespace part. |
| // when subscribe, client will first get all topics that match given pattern. |
| // `topics` contains the topics that match `patternString`. |
| PatternMultiTopicsConsumerImpl(ClientImplPtr client, const std::string patternString, |
| const std::vector<std::string>& topics, |
| const std::string& subscriptionName, const ConsumerConfiguration& conf, |
| const LookupServicePtr lookupServicePtr_); |
| |
| const PULSAR_REGEX_NAMESPACE::regex getPattern(); |
| |
| void autoDiscoveryTimerTask(const boost::system::error_code& err); |
| |
| // filter input `topics` with given `pattern`, return matched topics |
| static NamespaceTopicsPtr topicsPatternFilter(const std::vector<std::string>& topics, |
| const PULSAR_REGEX_NAMESPACE::regex& pattern); |
| |
| // Find out topics, which are in `list1` but not in `list2`. |
| static NamespaceTopicsPtr topicsListsMinus(std::vector<std::string>& list1, |
| std::vector<std::string>& list2); |
| |
| virtual void closeAsync(ResultCallback callback); |
| virtual void start(); |
| virtual void shutdown(); |
| |
| private: |
| const std::string patternString_; |
| const PULSAR_REGEX_NAMESPACE::regex pattern_; |
| typedef std::shared_ptr<boost::asio::deadline_timer> TimerPtr; |
| TimerPtr autoDiscoveryTimer_; |
| bool autoDiscoveryRunning_; |
| NamespaceNamePtr namespaceName_; |
| |
| void resetAutoDiscoveryTimer(); |
| void timerGetTopicsOfNamespace(const Result result, const NamespaceTopicsPtr topics); |
| void onTopicsAdded(NamespaceTopicsPtr addedTopics, ResultCallback callback); |
| void onTopicsRemoved(NamespaceTopicsPtr removedTopics, ResultCallback callback); |
| void handleOneTopicAdded(const Result result, const std::string& topic, |
| std::shared_ptr<std::atomic<int>> topicsNeedCreate, ResultCallback callback); |
| }; |
| |
| } // namespace pulsar |
| #endif // PULSAR_PATTERN_MULTI_TOPICS_CONSUMER_HEADER |