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doris/be/src/exec/es_http_scanner.cpp

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3.8 KiB
C++

// 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 "exec/es_http_scanner.h"
#include <iostream>
#include <sstream>
#include "exprs/expr.h"
#include "exprs/expr_context.h"
#include "runtime/descriptors.h"
#include "runtime/runtime_state.h"
#include "runtime/tuple.h"
namespace doris {
EsHttpScanner::EsHttpScanner(RuntimeState* state, RuntimeProfile* profile, TupleId tuple_id,
const std::map<std::string, std::string>& properties,
const std::vector<ExprContext*>& conjunct_ctxs, EsScanCounter* counter,
bool doc_value_mode)
: _state(state),
_profile(profile),
_tuple_id(tuple_id),
_properties(properties),
_conjunct_ctxs(conjunct_ctxs),
_next_range(0),
_line_eof(false),
_batch_eof(false),
_mem_pool(new MemPool()),
_tuple_desc(nullptr),
_counter(counter),
_es_reader(nullptr),
_es_scroll_parser(nullptr),
_doc_value_mode(doc_value_mode),
_rows_read_counter(nullptr),
_read_timer(nullptr),
_materialize_timer(nullptr) {}
EsHttpScanner::~EsHttpScanner() {
close();
}
Status EsHttpScanner::open() {
_tuple_desc = _state->desc_tbl().get_tuple_descriptor(_tuple_id);
if (_tuple_desc == nullptr) {
return Status::InternalError("Unknown tuple descriptor, tuple_id={}", _tuple_id);
}
const std::string& host = _properties.at(ESScanReader::KEY_HOST_PORT);
_es_reader.reset(new ESScanReader(host, _properties, _doc_value_mode));
if (_es_reader == nullptr) {
return Status::InternalError("Es reader construct failed.");
}
RETURN_IF_ERROR(_es_reader->open());
_rows_read_counter = ADD_COUNTER(_profile, "RowsRead", TUnit::UNIT);
_read_timer = ADD_TIMER(_profile, "TotalRawReadTime(*)");
_materialize_timer = ADD_TIMER(_profile, "MaterializeTupleTime(*)");
return Status::OK();
}
Status EsHttpScanner::get_next(Tuple* tuple, MemPool* tuple_pool, bool* eof,
const std::map<std::string, std::string>& docvalue_context) {
SCOPED_TIMER(_read_timer);
if (_line_eof && _batch_eof) {
*eof = true;
return Status::OK();
}
while (!_batch_eof) {
if (_line_eof || _es_scroll_parser == nullptr) {
RETURN_IF_ERROR(_es_reader->get_next(&_batch_eof, _es_scroll_parser));
if (_batch_eof) {
*eof = true;
return Status::OK();
}
}
COUNTER_UPDATE(_rows_read_counter, 1);
SCOPED_TIMER(_materialize_timer);
RETURN_IF_ERROR(_es_scroll_parser->fill_tuple(_tuple_desc, tuple, tuple_pool, &_line_eof,
docvalue_context));
if (!_line_eof) {
break;
}
}
return Status::OK();
}
void EsHttpScanner::close() {
if (_es_reader != nullptr) {
_es_reader->close();
}
Expr::close(_conjunct_ctxs, _state);
}
} // namespace doris