org.mybatis.maven.mvnmigrate.DownCommandMojo Maven / Gradle / Ivy

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Migration-plugin is a Apache Maven 2 plugin that aims to integrate into the maven life cycle, the myBatis 3 Migration tool. MyBatis 3 Migration Schema is a tool that helps you to manage database schema changes.

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/**
 *    Copyright 2010-2016 the original author or authors.
 *
 *    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.
 */
package org.mybatis.maven.mvnmigrate;

import org.apache.ibatis.migration.commands.DownCommand;
import org.apache.ibatis.migration.options.SelectedOptions;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;

/**
 * Goal which execute the ibatis migration status command.
 */
@Mojo(name = "down")
public final class DownCommandMojo extends AbstractCommandMojo {

  /**
   * Steps to do. (type ALL to apply all down steps, default: 1 step)
   */
  @Parameter(property = "migration.down.steps")
  private String downSteps;

  /**
   * {@inheritDoc}
   *
   * @param options
   */
  @Override
  protected DownCommand createCommandClass(SelectedOptions options) {
    return new DownCommand(options);
  }

  /** {@inheritDoc} */
  @Override
  public void execute() throws MojoExecutionException, MojoFailureException {
    if (isSkip()) {
      return;
    }
    init();

    // default downsteps to 1 if not specified on command line
    if (downSteps == null) {
      downSteps = "1";
    }

    if ("ALL".equalsIgnoreCase(downSteps)) {
      downSteps = "999999";
    }

    getCommand().execute(downSteps);
  }

}