You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@doris.apache.org by GitBox <gi...@apache.org> on 2019/12/28 05:12:44 UTC
[GitHub] [incubator-doris] Wsyzxxn commented on a change in pull request
#2554: Support load orc format in Apache Doris
Wsyzxxn commented on a change in pull request #2554: Support load orc format in Apache Doris
URL: https://github.com/apache/incubator-doris/pull/2554#discussion_r361777131
##########
File path: be/src/exec/orc_scanner.cpp
##########
@@ -0,0 +1,298 @@
+// 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/orc_scanner.h"
+
+#include "runtime/descriptors.h"
+#include "runtime/exec_env.h"
+#include "runtime/mem_tracker.h"
+#include "runtime/raw_value.h"
+#include "runtime/runtime_state.h"
+#include "runtime/tuple.h"
+#include "exprs/expr.h"
+#include "exec/local_file_reader.h"
+#include "exec/broker_reader.h"
+
+namespace doris {
+
+ORCFileStream::~ORCFileStream() {
+ if (_file) {
+ _file->close();
+ delete _file;
+ _file = nullptr;
+ }
+}
+
+uint64_t ORCFileStream::getLength() const {
+ return _file->size();
+}
+
+uint64_t ORCFileStream::getNaturalReadSize() const {
+ return 128 * 1024;
+}
+
+void ORCFileStream::read(void *buf, uint64_t length, uint64_t offset) {
+ if (!buf) {
+ throw orc::ParseError("Buffer is null");
+ }
+
+ int64_t bytes_read = 0;
+ int64_t reads = 0;
+ while (bytes_read < length) {
+ Status result = _file->readat(offset, length - bytes_read, &reads, buf);
+ if (!result.ok()) {
+ throw orc::ParseError("Bad read of " + _filename);
+ }
+ if (reads == 0) {
+ break;
+ }
+ bytes_read += reads;// total read bytes
+ offset += reads;
+ buf = (char *) buf + reads;
+ }
+ if (length != bytes_read) {
+ throw orc::ParseError("Short read of " + _filename
+ + ". expected :" + std::to_string(length) + ", actual : " + std::to_string(bytes_read));
+ }
+}
+
+const std::string& ORCFileStream::getName() const {
+ return _filename;
+}
+
+ORCScanner::ORCScanner(RuntimeState *state,
+ RuntimeProfile *profile,
+ const TBrokerScanRangeParams ¶ms,
+ const std::vector<TBrokerRangeDesc> &ranges,
+ const std::vector<TNetworkAddress> &broker_addresses,
+ ScannerCounter *counter) : BaseScanner(state, profile, params, counter),
+ _ranges(ranges),
+ _broker_addresses(broker_addresses),
+ // _splittable(params.splittable),
+ _next_range(0),
+ _cur_file_eof(true),
+ _scanner_eof(false),
+ _total_groups(0),
+ _current_group(0),
+ _rows_of_group(0),
+ _current_line_of_group(0) {}
+
+ORCScanner::~ORCScanner() {
+ close();
+}
+
+Status ORCScanner::open() {
+ return BaseScanner::open();
+}
+
+Status ORCScanner::get_next(Tuple *tuple, MemPool *tuple_pool, bool *eof) {
+ try {
+ SCOPED_TIMER(_read_timer);
+ // Get one line
+ while (!_scanner_eof) {
+ if (_cur_file_eof) {
+ RETURN_IF_ERROR(open_next_reader());
+ if (_scanner_eof) {
+ *eof = true;
+ return Status::OK();
+ } else {
+ _cur_file_eof = false;
+ }
+ }
+ if (_current_line_of_group >= _rows_of_group) { // read next stripe
+ if (_current_group >= _total_groups) {
+ _cur_file_eof = true;
+ continue;
+ }
+ _rows_of_group = _reader->getStripe(_current_group)->getNumberOfRows();
+ _batch = _row_reader->createRowBatch(_rows_of_group);
+ _row_reader->next(*_batch.get());
+
+ _current_line_of_group = 0;
+ ++_current_group;
+ }
+
+ const std::vector<orc::ColumnVectorBatch *>& batch_vec = ((orc::StructVectorBatch *) _batch.get())->fields;
+ for (int column_ipos = 0; column_ipos < _num_of_columns_from_file; ++column_ipos) {
+ auto slot_desc = _src_slot_descs[column_ipos];
+ int position_in_orc = _column_name_map_orc_index.find(slot_desc->col_name())->second;
+ orc::ColumnVectorBatch *cvb = batch_vec[position_in_orc];
+
+ if (cvb->hasNulls && !cvb->notNull[_current_line_of_group]) {
+ //all src tuple is nullable , judge null in dest_tuple
+ _src_tuple->set_null(slot_desc->null_indicator_offset());
+ } else {
+ int32_t wbytes = 0;
+ uint8_t tmp_buf[128] = {0};
+ _src_tuple->set_not_null(slot_desc->null_indicator_offset());
+ void *slot = _src_tuple->get_slot(slot_desc->tuple_offset());
+ StringValue *str_slot = reinterpret_cast<StringValue *>(slot);
+
+ switch (_row_reader->getSelectedType().getSubtype(position_in_orc)->getKind()) {
+ case orc::BOOLEAN: {
+ int64_t value = ((orc::LongVectorBatch *) cvb)->data[_current_line_of_group];
+ if (value == 0) {
+ str_slot->ptr = reinterpret_cast<char *>(tuple_pool->allocate(5));
+ memcpy(str_slot->ptr, "false", 5);
+ str_slot->len = 5;
+ } else {
+ str_slot->ptr = reinterpret_cast<char *>(tuple_pool->allocate(4));
+ memcpy(str_slot->ptr, "true", 4);
+ str_slot->len = 4;
+ }
+ break;
+ }
+ case orc::INT:
+ case orc::SHORT:
+ case orc::LONG:
+ case orc::DATE: {
+ int64_t value = ((orc::LongVectorBatch *) cvb)->data[_current_line_of_group];
+ wbytes = sprintf((char *) tmp_buf, "%ld", value);
+ str_slot->ptr = reinterpret_cast<char *>(tuple_pool->allocate(wbytes));
+ memcpy(str_slot->ptr, tmp_buf, wbytes);
+ str_slot->len = wbytes;
+ break;
+ }
+ case orc::FLOAT:
+ case orc::DOUBLE: {
+ double value = ((orc::DoubleVectorBatch *) cvb)->data[_current_line_of_group];
+ wbytes = sprintf((char *) tmp_buf, "%f", value);
+ str_slot->ptr = reinterpret_cast<char *>(tuple_pool->allocate(wbytes));
+ memcpy(str_slot->ptr, tmp_buf, wbytes);
+ str_slot->len = wbytes;
+ break;
+ }
+ case orc::BINARY:
+ case orc::CHAR:
+ case orc::VARCHAR:
+ case orc::STRING: {
+ char *value = ((orc::StringVectorBatch *) cvb)->data[_current_line_of_group];
+ wbytes = ((orc::StringVectorBatch *) cvb)->length[_current_line_of_group];
+ str_slot->ptr = reinterpret_cast<char *>(tuple_pool->allocate(wbytes));
+ memcpy(str_slot->ptr, value, wbytes);
+ str_slot->len = wbytes;
+ break;
+ }
+ //TODO (lhy) : support more orc type
+ case orc::TIMESTAMP:
+ case orc::DECIMAL:
+ default: {
+ std::stringstream str_error;
+ str_error << "The field name(" << slot_desc->col_name() << ") type not support. ";
+ LOG(WARNING) << str_error.str();
+ return Status::InternalError(str_error.str());
+ }
+ }
+ }
+ }
+ ++_current_line_of_group;
+
+ // range of current file
+ const TBrokerRangeDesc &range = _ranges.at(_next_range - 1);
+ if (range.__isset.num_of_columns_from_file) {
+ fill_slots_of_columns_from_path(range.num_of_columns_from_file, range.columns_from_path);
+ }
+ COUNTER_UPDATE(_rows_read_counter, 1);
+ SCOPED_TIMER(_materialize_timer);
+ if (fill_dest_tuple(Slice(), tuple, tuple_pool)) {
+ break; // get one line, break from while
+ } // else skip this line and continue get_next to return
+ }
+ return Status::OK();
+ } catch (orc::ParseError &e) {
+ std::stringstream str_error;
+ str_error << "ParseError : " << e.what();
+ LOG(WARNING) << str_error.str();
+ return Status::InternalError(str_error.str());
+ } catch (orc::InvalidArgument &e) {
+ std::stringstream str_error;
+ str_error << "ParseError : " << e.what();
+ LOG(WARNING) << str_error.str();
+ return Status::InternalError(str_error.str());
+ }
+}
+
+Status ORCScanner::open_next_reader() {
+ while (true) {
+ if (_next_range >= _ranges.size()) {
+ _scanner_eof = true;
+ return Status::OK();
+ }
+ const TBrokerRangeDesc &range = _ranges[_next_range++];
+ std::unique_ptr<FileReader> file_reader;
+ switch (range.file_type) {
+ case TFileType::FILE_LOCAL: {
+ file_reader.reset(new LocalFileReader(range.path, range.start_offset));
+ break;
+ }
+ case TFileType::FILE_BROKER: {
+ int64_t file_size = 0;
+ // for compatibility
+ if (range.__isset.file_size) { file_size = range.file_size; }
+ file_reader.reset(new BrokerReader(_state->exec_env(), _broker_addresses, _params.properties,
+ range.path, range.start_offset, file_size));
+ break;
+ }
+ default: {
+ std::stringstream ss;
+ ss << "Unknown file type, type=" << range.file_type;
+ return Status::InternalError(ss.str());
+ }
+ }
+ RETURN_IF_ERROR(file_reader->open());
+ if (file_reader->size() == 0) {
+ file_reader->close();
+ continue;
+ }
+
+ std::unique_ptr<orc::InputStream> inStream = std::unique_ptr<orc::InputStream>(
+ new ORCFileStream(file_reader.release(), range.path));
+ _reader = orc::createReader(std::move(inStream), _options);
Review comment:
propose orc file reader add new function to realizeļ¼3ks
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
users@infra.apache.org
With regards,
Apache Git Services
---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscribe@doris.apache.org
For additional commands, e-mail: commits-help@doris.apache.org