| /* |
| * 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.drill.test; |
| |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| /** |
| * Basic representation of a column parsed from a query profile. |
| * Idea is to use this to generate mock data that represents a |
| * query obtained from a user. This is a work in progress. |
| */ |
| |
| public class FieldDef { |
| public enum Type { VARCHAR, DOUBLE }; |
| public enum TypeHint { DATE, TIME }; |
| |
| public final String name; |
| public final String typeStr; |
| public final Type type; |
| public int length; |
| public TypeHint hint; |
| |
| public FieldDef(String name, String typeStr) { |
| this.name = name; |
| this.typeStr = typeStr; |
| |
| // Matches the type as provided in the query profile: |
| // name:type(length) |
| // Length is provided for VARCHAR fields. Examples: |
| // count: INTEGER |
| // customerName: VARCHAR(50) |
| |
| Pattern p = Pattern.compile("(\\w+)(?:\\((\\d+)\\))?"); |
| Matcher m = p.matcher(typeStr); |
| if (! m.matches()) { throw new IllegalStateException(); } |
| if (m.group(2) == null) { |
| length = 0; |
| } else { |
| length = Integer.parseInt(m.group(2)); |
| } |
| switch (m.group(1).toUpperCase()) { |
| case "VARCHAR": |
| type = Type.VARCHAR; |
| break; |
| case "DOUBLE": |
| type = Type.DOUBLE; |
| break; |
| // TODO: Add other types over time. |
| default: |
| type = null; |
| } |
| |
| } |
| |
| @Override |
| public String toString() { |
| String str = name + ": " + typeStr; |
| if (type != null) { |
| str += " - " + type.name(); |
| if (length != 0) { |
| str += "(" + length + ")"; |
| } |
| } |
| return str; |
| } |
| } |