| /* |
| * 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. |
| */ |
| #include "NamingScheme.h" |
| |
| #include <cstdint> |
| |
| #include "absl/container/flat_hash_map.h" |
| #include "absl/strings/numbers.h" |
| #include "absl/strings/str_join.h" |
| #include "absl/strings/str_split.h" |
| |
| ROCKETMQ_NAMESPACE_BEGIN |
| |
| const char* NamingScheme::DnsPrefix = "dns:"; |
| const char* NamingScheme::IPv4Prefix = "ipv4:"; |
| const char* NamingScheme::IPv6Prefix = "ipv6:"; |
| |
| const char* NamingScheme::IPv4Regex = |
| "(([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])"; |
| |
| const char* NamingScheme::IPv6Regex = "((([0-9a-fA-F]){1,4})\\:){7}([0-9a-fA-F]){1,4}"; |
| |
| NamingScheme::NamingScheme() : ipv4_pattern_(IPv4Regex), ipv6_pattern_(IPv6Regex) { |
| } |
| |
| std::string NamingScheme::buildAddress(const std::vector<std::string>& list) { |
| absl::flat_hash_map<std::string, std::uint32_t> ipv4; |
| absl::flat_hash_map<std::string, std::uint32_t> ipv6; |
| |
| for (const auto& segment : list) { |
| std::vector<std::string> host_port = absl::StrSplit(segment, ':'); |
| if (2 != host_port.size()) { |
| continue; |
| } |
| |
| if (re2::RE2::FullMatch(host_port[0], ipv4_pattern_)) { |
| std::uint32_t port; |
| if (absl::SimpleAtoi(host_port[1], &port)) { |
| ipv4.insert_or_assign(host_port[0], port); |
| } |
| continue; |
| } |
| |
| if (re2::RE2::FullMatch(host_port[0], ipv6_pattern_)) { |
| std::uint32_t port; |
| if (absl::SimpleAtoi(host_port[1], &port)) { |
| ipv6.insert_or_assign(host_port[0], port); |
| } |
| continue; |
| } |
| |
| // Once we find a domain name record, use it as the final result. |
| host_port.insert(host_port.begin(), "dns"); |
| return absl::StrJoin(host_port, ":"); |
| } |
| |
| if (!ipv4.empty()) { |
| return "ipv4:" + absl::StrJoin(ipv4, ",", absl::PairFormatter(":")); |
| } |
| |
| if (!ipv6.empty()) { |
| return "ipv6:" + absl::StrJoin(ipv4, ",", absl::PairFormatter(":")); |
| } |
| return std::string(); |
| } |
| |
| ROCKETMQ_NAMESPACE_END |