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      1 /*
      2  * Copyright (C) 2018 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include "src/trace_processor/storage_schema.h"
     18 
     19 #include "src/trace_processor/row_iterators.h"
     20 
     21 namespace perfetto {
     22 namespace trace_processor {
     23 
     24 StorageSchema::StorageSchema() = default;
     25 StorageSchema::StorageSchema(Columns columns,
     26                              std::vector<std::string> primary_keys)
     27     : columns_(std::move(columns)), primary_keys_(std::move(primary_keys)) {}
     28 
     29 Table::Schema StorageSchema::ToTableSchema() {
     30   std::vector<Table::Column> columns;
     31   size_t i = 0;
     32   for (const auto& col : columns_)
     33     columns.emplace_back(i++, col->name(), col->GetType(), col->hidden());
     34 
     35   std::vector<size_t> primary_keys;
     36   for (const auto& p_key : primary_keys_)
     37     primary_keys.emplace_back(ColumnIndexFromName(p_key));
     38   return Table::Schema(std::move(columns), std::move(primary_keys));
     39 }
     40 
     41 size_t StorageSchema::ColumnIndexFromName(const std::string& name) const {
     42   auto p = [name](const std::unique_ptr<StorageColumn>& col) {
     43     return name == col->name();
     44   };
     45   auto it = std::find_if(columns_.begin(), columns_.end(), p);
     46   return static_cast<size_t>(std::distance(columns_.begin(), it));
     47 }
     48 
     49 }  // namespace trace_processor
     50 }  // namespace perfetto
     51