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Avro Mocker

Generate mock data based on an Apache Avro schema and specific cardinality settings.

Usage

The program is intended to be used as a command-line application. To run it, invoke:

java -jar avro-mocker.jar \
  -schema my-schema.avsc \
  -result my-data.avro

The program will ask a number of questions regarding how many rows to generate as well as the structure of the columns. For most of the questions, a blank input is sufficient to use the default settings.

Example Settings

Incrementing by 1:

Strategy for int 'id': incr

Incrementing by 2:

Strategy for int 'profile_id': incr scale 1

Random value between 0 (inclusive) and 100 (exclusive):

Strategy for int 'lucky_number': to 100

Random value between 100 (inclusive) and 200 (exclusive):

Strategy for int 'lucky_number': from 100 to 200

Random even value between 0 (inclusive) and 100 (exclusive):

Strategy for int 'lucky_even_number': to 50 scale 2

Random date of 2017

Strategy for int 'birthday': date from 20170101 to 20180101

Random prime < 20

Strategy for int 'my_prime': in 2, 3, 5, 7, 11, 13, 17, 19

Repeating sequence of primes < 20

Strategy for int 'my_prime': incr in 2, 3, 5, 7, 11, 13, 17, 19

Random enum constant

Strategy for enum 'gender':

Random enum constant in selected

Strategy for enum 'gender': in MALE,OTHER

License

Copyright 2017 Speedment, Inc.

Licensed 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.