118 lines
3.9 KiB
C++
118 lines
3.9 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#include "exec/schema_scanner/schema_variables_scanner.h"
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#include <gen_cpp/Descriptors_types.h>
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#include <gen_cpp/FrontendService_types.h>
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#include <string.h>
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#include <map>
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#include <string>
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#include <utility>
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#include "exec/schema_scanner/schema_helper.h"
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#include "runtime/define_primitive_type.h"
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#include "util/runtime_profile.h"
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#include "vec/common/string_ref.h"
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namespace doris {
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class RuntimeState;
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namespace vectorized {
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class Block;
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} // namespace vectorized
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std::vector<SchemaScanner::ColumnDesc> SchemaVariablesScanner::_s_vars_columns = {
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// name, type, size
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{"VARIABLE_NAME", TYPE_VARCHAR, sizeof(StringRef), false},
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{"VARIABLE_VALUE", TYPE_VARCHAR, sizeof(StringRef), false},
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};
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SchemaVariablesScanner::SchemaVariablesScanner(TVarType::type type)
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: SchemaScanner(_s_vars_columns, TSchemaTableType::SCH_VARIABLES), _type(type) {}
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SchemaVariablesScanner::~SchemaVariablesScanner() {}
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Status SchemaVariablesScanner::start(RuntimeState* state) {
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TShowVariableRequest var_params;
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// Use db to save type
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if (_param->common_param->db != nullptr) {
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if (strcmp(_param->common_param->db->c_str(), "GLOBAL") == 0) {
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var_params.__set_varType(TVarType::GLOBAL);
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} else {
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var_params.__set_varType(TVarType::SESSION);
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}
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} else {
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var_params.__set_varType(_type);
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}
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var_params.__set_threadId(_param->common_param->thread_id);
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if (nullptr != _param->common_param->ip && 0 != _param->common_param->port) {
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RETURN_IF_ERROR(SchemaHelper::show_variables(
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*(_param->common_param->ip), _param->common_param->port, var_params, &_var_result));
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} else {
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return Status::InternalError("IP or port doesn't exists");
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}
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return Status::OK();
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}
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Status SchemaVariablesScanner::get_next_block_internal(vectorized::Block* block, bool* eos) {
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if (!_is_init) {
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return Status::InternalError("call this before initial.");
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}
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if (nullptr == block || nullptr == eos) {
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return Status::InternalError("invalid parameter.");
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}
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*eos = true;
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if (_var_result.variables.empty()) {
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return Status::OK();
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}
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return _fill_block_impl(block);
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}
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Status SchemaVariablesScanner::_fill_block_impl(vectorized::Block* block) {
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SCOPED_TIMER(_fill_block_timer);
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auto row_num = _var_result.variables.size();
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std::vector<void*> datas(row_num);
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// variables names
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{
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StringRef strs[row_num];
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int idx = 0;
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for (auto& it : _var_result.variables) {
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strs[idx] = StringRef(it.first.c_str(), it.first.size());
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datas[idx] = strs + idx;
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++idx;
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}
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RETURN_IF_ERROR(fill_dest_column_for_range(block, 0, datas));
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}
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// value
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{
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StringRef strs[row_num];
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int idx = 0;
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for (auto& it : _var_result.variables) {
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strs[idx] = StringRef(it.second.c_str(), it.second.size());
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datas[idx] = strs + idx;
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++idx;
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}
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RETURN_IF_ERROR(fill_dest_column_for_range(block, 1, datas));
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}
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return Status::OK();
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}
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} // namespace doris
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