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#include "import.h"
#include <ydb/public/sdk/cpp/client/ydb_driver/driver.h>
#include <ydb/public/sdk/cpp/client/ydb_operation/operation.h>
#include <ydb/public/sdk/cpp/client/ydb_scheme/scheme.h>
#include <ydb/public/sdk/cpp/client/ydb_table/table.h>
#include <ydb/public/sdk/cpp/client/ydb_proto/accessor.h>
#include <ydb/public/api/protos/ydb_table.pb.h>
#include <ydb/public/api/protos/ydb_formats.pb.h>
#include <ydb/public/lib/ydb_cli/common/recursive_list.h>
#include <ydb/public/lib/ydb_cli/dump/util/util.h>
#include <util/generic/vector.h>
#include <util/stream/file.h>
#include <util/string/builder.h>
#include <util/folder/path.h>
#include <deque>
namespace NYdb {
namespace NConsoleClient {
namespace {
TStatus MakeStatus(EStatus code = EStatus::SUCCESS, const TString& error = {}) {
NYql::TIssues issues;
if (error) {
issues.AddIssue(NYql::TIssue(error));
}
return TStatus(code, std::move(issues));
}
}
TImportFileClient::TImportFileClient(const TDriver& driver)
: OperationClient(std::make_shared<NOperation::TOperationClient>(driver))
, SchemeClient(std::make_shared<NScheme::TSchemeClient>(driver))
, TableClient(std::make_shared<NTable::TTableClient>(driver))
{}
TStatus TImportFileClient::Import(const TString& filePath, const TString& dbPath, const TImportFileSettings& settings) {
if (filePath.empty()) {
return MakeStatus(EStatus::BAD_REQUEST, "No file specified");
}
TFsPath dataFile(filePath);
if (!dataFile.Exists()) {
return MakeStatus(EStatus::BAD_REQUEST,
TStringBuilder() << "File does not exist: " << filePath);
}
if (!dataFile.IsFile()) {
return MakeStatus(EStatus::BAD_REQUEST,
TStringBuilder() << "Not a file: " << filePath);
}
auto result = NDump::DescribePath(*SchemeClient, dbPath).GetStatus();
if (result != EStatus::SUCCESS) {
return MakeStatus(EStatus::SCHEME_ERROR,
TStringBuilder() << "Table does not exist: " << dbPath);
}
if (settings.Format_ != NTable::EDataFormat::CSV) {
return MakeStatus(EStatus::BAD_REQUEST,
TStringBuilder() << "Unsupported format");
}
return UpsertCsv(dataFile, dbPath, settings);
}
namespace {
TStatus WaitForQueue(std::deque<TAsyncStatus>& inFlightRequests, size_t maxQueueSize) {
while (!inFlightRequests.empty() && inFlightRequests.size() > maxQueueSize) {
auto status = inFlightRequests.front().ExtractValueSync();
inFlightRequests.pop_front();
if (!status.IsSuccess()) {
return status;
}
}
return MakeStatus();
}
}
TStatus TImportFileClient::UpsertCsv(const TString& dataFile, const TString& dbPath,
const TImportFileSettings& settings) {
TFileInput input(dataFile, settings.FileBufferSize_);
TString line;
TString buffer;
auto upsertSettings = NTable::TBulkUpsertSettings()
.OperationTimeout(TDuration::Seconds(30))
.ClientTimeout(TDuration::Seconds(35));
auto retrySettings = NTable::TRetryOperationSettings()
.MaxRetries(10);
Ydb::Formats::CsvSettings csvSettings;
bool special = false;
if (settings.Delimiter_ != settings.DefaultDelimiter) {
csvSettings.set_delimiter(settings.Delimiter_);
special = true;
}
if (settings.NullValue_.size()) {
csvSettings.set_null_value(settings.NullValue_);
special = true;
}
// Do not use csvSettings.skip_rows.
for (ui32 i = 0; i < settings.SkipRows_; ++i) {
input.ReadLine(line);
}
TString headerRow;
if (settings.Header_) {
input.ReadLine(headerRow);
headerRow += '\n';
buffer = headerRow;
csvSettings.set_header(true);
}
if (special) {
TString formatSettings;
Y_PROTOBUF_SUPPRESS_NODISCARD csvSettings.SerializeToString(&formatSettings);
upsertSettings.FormatSettings(formatSettings);
}
std::deque<TAsyncStatus> inFlightRequests;
// TODO: better read
// * read serveral lines a time
// * support endlines inside quotes
// ReadLine() should count quotes for it and stop the line then counter is odd.
while (size_t sz = input.ReadLine(line)) {
buffer += line;
buffer += '\n'; // TODO: keep original endline?
if (buffer.Size() >= settings.BytesPerRequest_) {
auto status = WaitForQueue(inFlightRequests, settings.MaxInFlightRequests_);
if (!status.IsSuccess()) {
return status;
}
inFlightRequests.push_back(UpsertCsvBuffer(dbPath, buffer, {}, upsertSettings, retrySettings));
buffer = headerRow;
}
}
if (!buffer.Empty()) {
inFlightRequests.push_back(UpsertCsvBuffer(dbPath, buffer, {}, upsertSettings, retrySettings));
}
return WaitForQueue(inFlightRequests, 0);
}
TAsyncStatus TImportFileClient::UpsertCsvBuffer(const TString& dbPath, const TString& csv, const TString& header,
const NTable::TBulkUpsertSettings& upsertSettings,
const NTable::TRetryOperationSettings& retrySettings) {
auto upsert = [dbPath, csv, header, upsertSettings](NYdb::NTable::TTableClient& tableClient) -> TAsyncStatus {
return tableClient.BulkUpsert(dbPath, NTable::EDataFormat::CSV, csv, header, upsertSettings)
.Apply([](const NYdb::NTable::TAsyncBulkUpsertResult& bulkUpsertResult) {
NYdb::TStatus status = bulkUpsertResult.GetValueSync();
return NThreading::MakeFuture(status);
});
};
return TableClient->RetryOperation(upsert, retrySettings);
}
}
}
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