yinzhijian commented on code in PR #10492: URL: https://github.com/apache/doris/pull/10492#discussion_r910543619
########## be/src/exec/avro_scanner.cpp: ########## @@ -0,0 +1,525 @@ +// 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/avro_scanner.h> + +#include <fstream> +#include <iostream> +#include <sstream> + +#include "common/config.h" +#include "env/env.h" +#include "exprs/expr.h" +#include "gutil/strings/split.h" +#include "runtime/exec_env.h" +#include "runtime/mem_tracker.h" +#include "runtime/runtime_state.h" + +namespace doris { + +void deserializeNoop(MemPool*, Tuple*, SlotDescriptor*, avro::Decoder&, int) {} + +AvroScanner::AvroScanner(RuntimeState* state, RuntimeProfile* profile, + const TBrokerScanRangeParams& params, + const std::vector<TBrokerRangeDesc>& ranges, + const std::vector<TNetworkAddress>& broker_addresses, + const std::vector<TExpr>& pre_filter_texprs, ScannerCounter* counter) + : BaseScanner(state, profile, params, ranges, broker_addresses, pre_filter_texprs, counter), + _ranges(ranges), + _broker_addresses(broker_addresses), + _cur_file_reader(nullptr), + _cur_avro_reader(nullptr), + _next_range(0), + _cur_reader_eof(false), + _scanner_eof(false) {} + +AvroScanner::~AvroScanner() { + close(); +} + +Status AvroScanner::open() { + Status st = BaseScanner::open(); + RETURN_IF_ERROR(st); + return st; +} + +Status AvroScanner::get_next(Tuple* tuple, MemPool* tuple_pool, bool* eof, bool* fill_tuple) { + SCOPED_TIMER(_read_timer); + + // read one line + while (!_scanner_eof) { + if (_cur_file_reader == nullptr || _cur_reader_eof) { + RETURN_IF_ERROR(open_next_reader()); + // If there isn't any more reader, break this + if (_scanner_eof) { + break; + } + } + + bool is_empty_row = false; + + RETURN_IF_ERROR(_cur_avro_reader->read_avro_row(_src_tuple, _src_slot_descs, tuple_pool, + &is_empty_row, &_cur_reader_eof)); + if (is_empty_row) { + continue; + } + COUNTER_UPDATE(_rows_read_counter, 1); + SCOPED_TIMER(_materialize_timer); + if (fill_dest_tuple(tuple, tuple_pool, fill_tuple)) { + break; // break if true + } + } + if (_scanner_eof) { + *eof = true; + } else { + *eof = false; + } + return Status::OK(); +} + +void AvroScanner::close() { + BaseScanner::close(); + if (_cur_avro_reader != nullptr) { + delete _cur_avro_reader; + _cur_avro_reader = nullptr; + } + if (_cur_file_reader != nullptr) { + if (_stream_load_pipe != nullptr) { + _stream_load_pipe.reset(); + } else { + delete _cur_file_reader; + } + _cur_file_reader = nullptr; + } +} + +Status AvroScanner::open_file_reader() { + if (_cur_file_reader != nullptr) { + if (_stream_load_pipe != nullptr) { + _stream_load_pipe.reset(); + _cur_file_reader = nullptr; + } else { + delete _cur_file_reader; + _cur_file_reader = nullptr; + } + } + + const TBrokerRangeDesc& range = _ranges[_next_range]; + + switch (range.file_type) { + case TFileType::FILE_STREAM: { + _stream_load_pipe = _state->exec_env()->load_stream_mgr()->get(range.load_id); + if (_stream_load_pipe == nullptr) { + VLOG_NOTICE << "unknown stream load id: " << UniqueId(range.load_id); + return Status::InternalError("unknown stream load id"); + } + _cur_file_reader = _stream_load_pipe.get(); + break; + } + case TFileType::FILE_LOCAL: + case TFileType::FILE_BROKER: + case TFileType::FILE_S3: + default: { + std::stringstream ss; + ss << "Only support stream type. Unsupport file type, type=" << range.file_type; + return Status::InternalError(ss.str()); + } + } + _cur_reader_eof = false; + return Status::OK(); +} + +Status AvroScanner::open_avro_reader() { + if (_cur_avro_reader != nullptr) { + delete _cur_avro_reader; + _cur_avro_reader = nullptr; + } + + _cur_avro_reader = new AvroReader(_state, _counter, _profile, _cur_file_reader, nullptr); + RETURN_IF_ERROR(_cur_avro_reader->init()); + return Status::OK(); +} + +Status AvroScanner::open_next_reader() { + if (_next_range >= _ranges.size()) { + _scanner_eof = true; + return Status::OK(); + } + + RETURN_IF_ERROR(open_file_reader()); + RETURN_IF_ERROR(open_avro_reader()); + _next_range++; + + return Status::OK(); +} + +////// class AvroReader +AvroReader::AvroReader(RuntimeState* state, ScannerCounter* counter, RuntimeProfile* profile, + FileReader* file_reader, LineReader* line_reader) + : _next_line(0), + _total_lines(0), + _state(state), + _counter(counter), + _profile(profile), + _file_reader(file_reader), + _line_reader(line_reader), + _closed(false), + _decoder(avro::binaryDecoder()), + _in(nullptr) { + _bytes_read_counter = ADD_COUNTER(_profile, "BytesRead", TUnit::BYTES); + _read_timer = ADD_TIMER(_profile, "ReadTime"); + _file_read_timer = ADD_TIMER(_profile, "FileReadTime"); +} + +AvroReader::~AvroReader() { + _close(); +} + +Status AvroReader::init() { + bool exist = FileUtils::check_exist(config::avro_schema_file_path); + if (!exist) { + return Status::InternalError("there is no avro schema file at " + + config::avro_schema_file_path + + ". Please put an schema file in json format."); + } else { + try { + _schema = avro::compileJsonSchemaFromFile(config::avro_schema_file_path.c_str()); + } catch (avro::Exception& e) { + return Status::InternalError(std::string("schema get from json failed.") + e.what()); + } + } + + if (_schema.root()->type() != avro::AVRO_RECORD) { + return Status::DataQualityError("Root schema must be a record"); + } + + return Status::OK(); +} + +void AvroReader::_close() { + if (_closed) { + return; + } + _closed = true; +} + +Status AvroReader::_get_avro_doc(size_t* size, bool* eof, MemPool* tuple_pool, Tuple* tuple, + const std::vector<SlotDescriptor*>& slot_descs) { + SCOPED_TIMER(_file_read_timer); + + if (_avro_str_ptr != nullptr) { + _avro_str_ptr.reset(); + } + int64_t length = 0; + RETURN_IF_ERROR(_file_reader->read_one_message(&_avro_str_ptr, &length)); + + *size = length; + if (length == 0) { + *eof = true; + } + + _bytes_read_counter += *size; + if (*eof) { + return Status::OK(); + } + + try { + auto schema_root = _schema.root(); + _in = avro::memoryInputStream(_avro_str_ptr.get(), *size); + _decoder->init(*_in); + } catch (avro::Exception& e) { + return Status::DataQualityError(std::string("data quality is not good.") + e.what()); + } + + return Status::OK(); +} + +void AvroReader::_fill_slot(Tuple* tuple, SlotDescriptor* slot_desc, MemPool* mem_pool, + const uint8_t* value, int32_t len) { + tuple->set_not_null(slot_desc->null_indicator_offset()); + void* slot = tuple->get_slot(slot_desc->tuple_offset()); + StringValue* str_slot = reinterpret_cast<StringValue*>(slot); + str_slot->ptr = reinterpret_cast<char*>(mem_pool->allocate(len)); + memcpy(str_slot->ptr, value, len); + str_slot->len = len; +} + +AvroReader::DeserializeFn AvroReader::createDeserializeFn(avro::NodePtr root_node, + SlotDescriptor* slot_desc) { + uint8_t tmp_buf[128] = {0}; + int32_t wbytes = 0; + switch (root_node->type()) { + case avro::AVRO_BYTES: + [[fallthrough]]; + case avro::AVRO_STRING: { + return [val_string = std::string(), this](MemPool* tuple_pool, Tuple* tuple, + SlotDescriptor* slot_desc, avro::Decoder& decoder, + int nullcount) mutable { + decoder.decodeString(val_string); + if (val_string.empty()) { + if (slot_desc->is_nullable()) { + tuple->set_null(slot_desc->null_indicator_offset()); + nullcount++; + } else { + throw avro::Exception("NULL data for non-nullable column" + + slot_desc->col_name()); + } + } else { + _fill_slot(tuple, slot_desc, tuple_pool, (uint8_t*)val_string.c_str(), + (int32_t)strlen(val_string.c_str())); + } + }; + } break; + case avro::AVRO_INT: { + return [tmp_buf, wbytes, this](MemPool* tuple_pool, Tuple* tuple, SlotDescriptor* slot_desc, + avro::Decoder& decoder, int nullcount) mutable { + int32_t val_int = decoder.decodeInt(); + wbytes = sprintf((char*)tmp_buf, "%d", val_int); + _fill_slot(tuple, slot_desc, tuple_pool, tmp_buf, wbytes); + }; + } break; + case avro::AVRO_LONG: { + return [tmp_buf, wbytes, this](MemPool* tuple_pool, Tuple* tuple, SlotDescriptor* slot_desc, + avro::Decoder& decoder, int nullcount) mutable { + int64_t val_long = decoder.decodeLong(); + wbytes = sprintf((char*)tmp_buf, "%ld", val_long); + _fill_slot(tuple, slot_desc, tuple_pool, tmp_buf, wbytes); + }; + } break; + case avro::AVRO_FLOAT: { + return [tmp_buf, wbytes, this](MemPool* tuple_pool, Tuple* tuple, SlotDescriptor* slot_desc, + avro::Decoder& decoder, int nullcount) mutable { + float val_float = decoder.decodeFloat(); + wbytes = sprintf((char*)tmp_buf, "%f", val_float); + _fill_slot(tuple, slot_desc, tuple_pool, tmp_buf, wbytes); + }; + } break; + case avro::AVRO_DOUBLE: { + return [tmp_buf, wbytes, this](MemPool* tuple_pool, Tuple* tuple, SlotDescriptor* slot_desc, + avro::Decoder& decoder, int nullcount) mutable { + double val_double = decoder.decodeDouble(); + wbytes = sprintf((char*)tmp_buf, "%lf", val_double); + _fill_slot(tuple, slot_desc, tuple_pool, tmp_buf, wbytes); + }; + } break; + case avro::AVRO_BOOL: { + return [tmp_buf, wbytes, this](MemPool* tuple_pool, Tuple* tuple, SlotDescriptor* slot_desc, + avro::Decoder& decoder, int nullcount) mutable { + bool val_bool = decoder.decodeBool(); + wbytes = sprintf((char*)tmp_buf, "%d", val_bool); + _fill_slot(tuple, slot_desc, tuple_pool, tmp_buf, wbytes); + }; + } break; + case avro::AVRO_ARRAY: { + // should have array type info + // TODO : + } break; + case avro::AVRO_UNION: { + auto nullable_deserializer = [root_node, slot_desc, this](size_t non_null_union_index) { + auto nested_deserialize = + createDeserializeFn(root_node->leafAt(non_null_union_index), slot_desc); + return [non_null_union_index, nested_deserialize, this]( + MemPool* tuple_pool, Tuple* tuple, SlotDescriptor* slot_desc, + avro::Decoder& decoder, int nullcount) mutable { + size_t union_index = decoder.decodeUnionIndex(); + if (union_index == non_null_union_index) { + nested_deserialize(tuple_pool, tuple, slot_desc, decoder, nullcount); + } else { + tuple->set_null(slot_desc->null_indicator_offset()); + } + }; + }; + if (root_node->leaves() == 2 && slot_desc->is_nullable()) { + if (root_node->leafAt(0)->type() == avro::AVRO_NULL) return nullable_deserializer(1); + if (root_node->leafAt(1)->type() == avro::AVRO_NULL) return nullable_deserializer(0); + } + } break; + case avro::AVRO_NULL: { + if (slot_desc->is_nullable()) { + return [this](MemPool* tuple_pool, Tuple* tuple, SlotDescriptor* slot_desc, + avro::Decoder& decoder, int nullcount) mutable { + tuple->set_null(slot_desc->null_indicator_offset()); + nullcount++; + }; + } else { + throw avro::Exception("NULL data for non-nullable column" + slot_desc->col_name()); + } + } break; + case avro::AVRO_ENUM: + [[fallthrough]]; + case avro::AVRO_FIXED: + [[fallthrough]]; + case avro::AVRO_MAP: + [[fallthrough]]; + case avro::AVRO_RECORD: + [[fallthrough]]; + default: { + throw avro::Exception("Not support " + root_node->type() + std::string("type yet.")); + } break; + } + throw avro::Exception("Type " + slot_desc->type().type + + std::string("is not compatible with Avro ") + Review Comment: ```suggestion std::string(" is not compatible with Avro ") + ``` -- This is an automated message from the Apache Git Service. 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