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97 lines
2.4 KiB
C++
97 lines
2.4 KiB
C++
#pragma once
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#include <Yandex/logger_useful.h>
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#include <DB/Columns/IColumn.h>
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#include <Poco/AutoPtr.h>
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#include <Poco/Util/XMLConfiguration.h>
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#include <string>
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#include <Poco/File.h>
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#include <DB/Common/escapeForFileName.h>
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#include <boost/property_tree/ptree.hpp>
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#include <boost/property_tree/json_parser.hpp>
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namespace DB
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{
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/// хранит размеры всех столбцов, и может проверять не побились ли столбцы
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template <class Storage>
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class FileChecker
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{
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public:
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FileChecker(const std::string &file_info_path_, Storage & storage_) :
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files_info_path(file_info_path_), files_info(), storage(storage_), log(&Logger::get("FileChecker"))
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{
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if (Poco::File(files_info_path).exists())
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boost::property_tree::read_json(files_info_path, files_info);
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}
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void setPath(const std::string & file_info_path_)
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{
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files_info_path = file_info_path_;
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}
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using Files = std::vector<Poco::File>;
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void update(const Poco::File & file)
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{
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updateTree(file);
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saveTree();
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}
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void update(const Files::iterator & begin, const Files::iterator & end)
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{
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for (auto it = begin; it != end; ++it)
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updateTree(*it);
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saveTree();
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}
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/// Проверяем файлы, параметры которых указаны в sizes.json
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bool check() const
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{
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bool correct = true;
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if (!files_info.empty())
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for (auto & node : files_info.get_child("yandex"))
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{
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std::string filename = unescapeForFileName(node.first);
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size_t expected_size = std::stoull(node.second.get<std::string>("size"));
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Poco::File file(Poco::Path(files_info_path).parent().toString() + "/" + filename);
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if (!file.exists())
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{
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LOG_ERROR(log, "File " << file.path() << " doesn't exists");
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correct = false;
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continue;
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}
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size_t real_size = file.getSize();
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if (real_size != expected_size)
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{
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LOG_ERROR(log, "Size of " << file.path() << " is wrong. Size is " << real_size << " but should be " << expected_size);
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correct = false;
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}
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}
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return correct;
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}
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private:
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void updateTree(const Poco::File & file)
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{
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files_info.put(std::string("yandex.") + escapeForFileName(Poco::Path(file.path()).getFileName()) + ".size", std::to_string(file.getSize()));
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}
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void saveTree()
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{
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boost::property_tree::write_json(files_info_path, files_info, std::locale());
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}
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std::string files_info_path;
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using PropertyTree = boost::property_tree::ptree;
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PropertyTree files_info;
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Storage & storage;
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Logger * log;
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};
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}
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