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60 lines
1.2 KiB
C++
60 lines
1.2 KiB
C++
#include <DB/Core/Exception.h>
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#include <DB/Core/ErrorCodes.h>
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#include <DB/DataStreams/TabSeparatedRowInputStream.h>
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namespace DB
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{
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using Poco::SharedPtr;
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TabSeparatedRowInputStream::TabSeparatedRowInputStream(std::istream & istr_, SharedPtr<DataTypes> data_types_)
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: istr(istr_), data_types(data_types_)
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{
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}
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Row TabSeparatedRowInputStream::read()
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{
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Row res;
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size_t size = data_types->size();
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res.resize(size);
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for (size_t i = 0; i < size; ++i)
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{
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(*data_types)[i]->deserializeTextEscaped(res[i], istr);
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if (i == 0 && istr.eof())
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{
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res.clear();
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return res;
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}
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else if (!istr.good())
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throw Exception("Cannot read all data from tab separated input",
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ErrorCodes::CANNOT_READ_ALL_DATA_FROM_TAB_SEPARATED_INPUT);
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/// пропускаем разделители
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if (i + 1 == size)
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{
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if (istr.peek() == '\n')
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istr.ignore();
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else if (!istr.eof())
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throw Exception("Cannot parse all value in tab separated input",
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ErrorCodes::CANNOT_PARSE_ALL_VALUE_FROM_TAB_SEPARATED_INPUT);
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}
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else
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{
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if (istr.peek() == '\t')
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istr.ignore();
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else
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throw Exception("Cannot parse all value in tab separated input",
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ErrorCodes::CANNOT_PARSE_ALL_VALUE_FROM_TAB_SEPARATED_INPUT);
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}
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}
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return res;
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}
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}
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