code: /*
   * 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.
   *
   */
  
  package org.apache.skywalking.oal.rt.parser;
  
  import java.util.ArrayList;
  import java.util.List;
  import org.apache.skywalking.oap.server.core.source.DefaultScopeDefine;
  import org.apache.skywalking.oap.server.core.source.ScopeDefaultColumn;
  
  public class SourceColumnsFactory {
      public static List<SourceColumn> getColumns(String source) {
          List<SourceColumn> sourceColumns = new ArrayList<>();
  
          List<ScopeDefaultColumn> columns = DefaultScopeDefine.getDefaultColumns(source);
          for (ScopeDefaultColumn defaultColumn : columns) {
              sourceColumns.add(
                  new SourceColumn(defaultColumn.getFieldName(), defaultColumn.getColumnName(), defaultColumn
                      .getType(), defaultColumn.isID(), defaultColumn.getLength(), defaultColumn.isGroupByCondInTopN()));
          }
          return sourceColumns;
      }
  }
  