service/src/main/java/io/mifos/deposit/service/internal/command/handler/MigrationAggregate.java

/*
 * Copyright 2017 The Mifos Initiative.
 *
 * 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 io.mifos.deposit.service.internal.command.handler;

import io.mifos.core.command.annotation.Aggregate;
import io.mifos.core.command.annotation.CommandHandler;
import io.mifos.core.command.annotation.EventEmitter;
import io.mifos.core.lang.ApplicationName;
import io.mifos.core.mariadb.domain.FlywayFactoryBean;
import io.mifos.deposit.api.v1.EventConstants;
import io.mifos.deposit.service.ServiceConstants;
import io.mifos.deposit.service.internal.command.MigrationCommand;
import io.mifos.deposit.service.internal.service.helper.RhythmService;
import org.slf4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.transaction.annotation.Transactional;

import javax.sql.DataSource;

@Aggregate
public class MigrationAggregate {

  private final Logger logger;
  private final DataSource dataSource;
  private final FlywayFactoryBean flywayFactoryBean;
  private final ApplicationName applicationName;
  private final RhythmService rhythmService;

  @Autowired
  public MigrationAggregate(@Qualifier(ServiceConstants.LOGGER_NAME) final Logger logger,
                            final DataSource dataSource,
                            final FlywayFactoryBean flywayFactoryBean,
                            final ApplicationName applicationName,
                            final RhythmService rhythmService) {
    super();
    this.logger = logger;
    this.dataSource = dataSource;
    this.flywayFactoryBean = flywayFactoryBean;
    this.applicationName = applicationName;
    this.rhythmService = rhythmService;
  }

  @CommandHandler
  @EventEmitter(selectorName = EventConstants.SELECTOR_NAME, selectorValue = EventConstants.INITIALIZE)
  @Transactional
  public String process(final MigrationCommand migrationCommand) {
    this.logger.info("Starting migration for deposit account management version: {}.", applicationName.getVersionString());
    this.flywayFactoryBean.create(this.dataSource).migrate();

    this.rhythmService.setBeat();

    this.logger.info("Migration finished.");
    return this.applicationName.getVersionString();
  }
}