service/src/main/java/org/apache/fineract/cn/portfolio/service/internal/command/handler/TaskDefinitionCommandHandler.java

/*
 * 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.fineract.cn.portfolio.service.internal.command.handler;

import org.apache.fineract.cn.portfolio.api.v1.domain.TaskDefinition;
import org.apache.fineract.cn.portfolio.api.v1.events.EventConstants;
import org.apache.fineract.cn.portfolio.api.v1.events.TaskDefinitionEvent;
import org.apache.fineract.cn.portfolio.service.internal.command.ChangeTaskDefinitionCommand;
import org.apache.fineract.cn.portfolio.service.internal.command.CreateTaskDefinitionCommand;
import org.apache.fineract.cn.portfolio.service.internal.command.DeleteTaskDefinitionCommand;
import org.apache.fineract.cn.portfolio.service.internal.mapper.TaskDefinitionMapper;
import org.apache.fineract.cn.portfolio.service.internal.repository.ProductEntity;
import org.apache.fineract.cn.portfolio.service.internal.repository.ProductRepository;
import org.apache.fineract.cn.portfolio.service.internal.repository.TaskDefinitionEntity;
import org.apache.fineract.cn.portfolio.service.internal.repository.TaskDefinitionRepository;
import org.apache.fineract.cn.command.annotation.Aggregate;
import org.apache.fineract.cn.command.annotation.CommandHandler;
import org.apache.fineract.cn.command.annotation.CommandLogLevel;
import org.apache.fineract.cn.command.annotation.EventEmitter;
import org.apache.fineract.cn.lang.ServiceException;
import org.springframework.beans.factory.annotation.Autowired;

/**
 * @author Myrle Krantz
 */
@SuppressWarnings("unused")
@Aggregate
public class TaskDefinitionCommandHandler {
  private final ProductRepository productRepository;
  private final TaskDefinitionRepository taskDefinitionRepository;

  @Autowired
  public TaskDefinitionCommandHandler(
          final ProductRepository productRepository,
          final TaskDefinitionRepository taskDefinitionRepository) {
    this.productRepository = productRepository;
    this.taskDefinitionRepository = taskDefinitionRepository;
  }

  @CommandHandler(logStart = CommandLogLevel.INFO, logFinish = CommandLogLevel.INFO)
  @EventEmitter(selectorName = EventConstants.SELECTOR_NAME, selectorValue = EventConstants.POST_TASK_DEFINITION)
  public TaskDefinitionEvent process(final CreateTaskDefinitionCommand createTaskDefinitionCommand) {
    final TaskDefinition taskDefinition = createTaskDefinitionCommand.getInstance();
    final String productIdentifier = createTaskDefinitionCommand.getProductIdentifier();

    final ProductEntity productEntity
            = productRepository.findByIdentifier(productIdentifier)
            .orElseThrow(() -> ServiceException.badRequest("The given product identifier does not refer to a product {0}", productIdentifier));

    final TaskDefinitionEntity taskDefinitionEntity =
            TaskDefinitionMapper.map(productEntity, taskDefinition);
    taskDefinitionRepository.save(taskDefinitionEntity);

    return new TaskDefinitionEvent(
            createTaskDefinitionCommand.getProductIdentifier(),
            createTaskDefinitionCommand.getInstance().getIdentifier());
  }

  @CommandHandler(logStart = CommandLogLevel.INFO, logFinish = CommandLogLevel.INFO)
  @EventEmitter(selectorName = EventConstants.SELECTOR_NAME, selectorValue = EventConstants.PUT_TASK_DEFINITION)
  public TaskDefinitionEvent process(final ChangeTaskDefinitionCommand changeTaskDefinitionCommand) {
    final TaskDefinition taskDefinition = changeTaskDefinitionCommand.getInstance();
    final String productIdentifier = changeTaskDefinitionCommand.getProductIdentifier();

    final TaskDefinitionEntity existingTaskDefinition
        = taskDefinitionRepository.findByProductIdAndTaskIdentifier(productIdentifier, taskDefinition.getIdentifier())
        .orElseThrow(() -> ServiceException.internalError("task definition not found."));

    final TaskDefinitionEntity taskDefinitionEntity =
        TaskDefinitionMapper.map(existingTaskDefinition.getProduct(), taskDefinition);
    taskDefinitionEntity.setId(existingTaskDefinition.getId());
    taskDefinitionEntity.setId(existingTaskDefinition.getId());
    taskDefinitionRepository.save(taskDefinitionEntity);

    return new TaskDefinitionEvent(
        changeTaskDefinitionCommand.getProductIdentifier(),
        changeTaskDefinitionCommand.getInstance().getIdentifier());
  }

  @CommandHandler(logStart = CommandLogLevel.INFO, logFinish = CommandLogLevel.INFO)
  @EventEmitter(selectorName = EventConstants.SELECTOR_NAME, selectorValue = EventConstants.DELETE_TASK_DEFINITION)
  public TaskDefinitionEvent process(final DeleteTaskDefinitionCommand deleteTaskDefinitionCommand) {
    final String productIdentifier = deleteTaskDefinitionCommand.getProductIdentifier();
    final String taskIdentifier = deleteTaskDefinitionCommand.getTaskIdentifier();

    final TaskDefinitionEntity existingTaskDefinition
        = taskDefinitionRepository.findByProductIdAndTaskIdentifier(productIdentifier, taskIdentifier)
        .orElseThrow(() -> ServiceException.notFound("Task definition ''{0}.{1}'' not found.", productIdentifier, taskIdentifier));

    taskDefinitionRepository.delete(existingTaskDefinition);

    return new TaskDefinitionEvent(productIdentifier, taskIdentifier);
  }

}