55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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//
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#pragma once
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#include <re2/re2.h>
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#include <string>
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#include <unordered_map>
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namespace cctz {
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class time_zone;
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} // namespace cctz
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namespace doris {
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class TimezoneUtils {
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public:
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static void load_timezone_names();
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// we support to parse lower_case timezone name iff execution environment has timezone file
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static void load_timezones_to_cache();
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// when use this, timezone will be saved in cache.
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static bool find_cctz_time_zone(const std::string& timezone, cctz::time_zone& ctz);
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static const std::string default_time_zone;
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private:
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// for ut only
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static void clear_timezone_caches();
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static bool find_cctz_time_zone_impl(const std::string& timezone, cctz::time_zone& ctz);
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static bool inited_;
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static std::unordered_map<std::string, std::string> timezone_names_map_;
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// RE2 obj is thread safe
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static RE2 time_zone_offset_format_reg;
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};
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} // namespace doris
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