monasca-api/src/main/java/monasca/api/infrastructure/persistence/mysql/NotificationMethodMySqlRepositoryImpl.java

/*
 * Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
 * 
 * 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 monasca.api.infrastructure.persistence.mysql;

import java.util.List;
import java.util.UUID;

import javax.inject.Inject;
import javax.inject.Named;

import org.skife.jdbi.v2.DBI;
import org.skife.jdbi.v2.Handle;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import monasca.api.domain.exception.EntityExistsException;
import monasca.api.domain.exception.EntityNotFoundException;
import monasca.api.domain.model.notificationmethod.NotificationMethod;
import monasca.api.domain.model.notificationmethod.NotificationMethodRepository;
import monasca.api.domain.model.notificationmethod.NotificationMethodType;
import com.hpcloud.persistence.BeanMapper;

/**
 * Notification method repository implementation.
 */
public class NotificationMethodMySqlRepositoryImpl implements NotificationMethodRepository {
  private static final Logger LOG = LoggerFactory
      .getLogger(NotificationMethodMySqlRepositoryImpl.class);
  private final DBI db;

  @Inject
  public NotificationMethodMySqlRepositoryImpl(@Named("mysql") DBI db) {
    this.db = db;
  }

  @Override
  public NotificationMethod create(String tenantId, String name, NotificationMethodType type,
      String address) {
    if (exists(tenantId, name, type, address))
      throw new EntityExistsException("Notification method %s \"%s\" %s \"%s\" already exists.",
          tenantId, name, type, address);

    try (Handle h = db.open()) {
      String id = UUID.randomUUID().toString();
      h.insert(
          "insert into notification_method (id, tenant_id, name, type, address, created_at, updated_at) values (?, ?, ?, ?, ?, NOW(), NOW())",
          id, tenantId, name, type.toString(), address);
      LOG.debug("Creating notification method {} for {}", name, tenantId);
      return new NotificationMethod(id, name, type, address);
    }
  }

  @Override
  public void deleteById(String tenantId, String notificationMethodId) {
    try (Handle h = db.open()) {
      if (h.update("delete from notification_method where tenant_id = ? and id = ?", tenantId,
          notificationMethodId) == 0)
        throw new EntityNotFoundException("No notification method exists for %s",
            notificationMethodId);
    }
  }

  @Override
  public boolean exists(String tenantId, String notificationMethodId) {
    try (Handle h = db.open()) {
      return h
          .createQuery(
              "select exists(select 1 from notification_method where tenant_id = :tenantId and id = :notificationMethodId)")
          .bind("tenantId", tenantId).bind("notificationMethodId", notificationMethodId)
          .mapTo(Boolean.TYPE).first();
    }
  }

  public boolean exists(String tenantId, String name, NotificationMethodType type, String address) {
    try (Handle h = db.open()) {
      return h
          .createQuery(
              "select exists(select 1 from notification_method where tenant_id = :tenantId and name = :name and type = :type and address = :address)")
          .bind("tenantId", tenantId).bind("name", name).bind("type", type.toString())
          .bind("address", address).mapTo(Boolean.TYPE).first();
    }
  }

  @Override
  public List<NotificationMethod> find(String tenantId) {
    try (Handle h = db.open()) {
      return h.createQuery("select * from notification_method where tenant_id = :tenantId")
          .bind("tenantId", tenantId)
          .map(new BeanMapper<NotificationMethod>(NotificationMethod.class)).list();
    }
  }

  @Override
  public NotificationMethod findById(String tenantId, String notificationMethodId) {
    try (Handle h = db.open()) {
      NotificationMethod notificationMethod =
          h.createQuery(
              "select * from notification_method where tenant_id = :tenantId and id = :id")
              .bind("tenantId", tenantId).bind("id", notificationMethodId)
              .map(new BeanMapper<NotificationMethod>(NotificationMethod.class)).first();

      if (notificationMethod == null)
        throw new EntityNotFoundException("No notification method exists for %s",
            notificationMethodId);

      return notificationMethod;
    }
  }

  @Override
  public NotificationMethod update(String tenantId, String notificationMethodId, String name,
      NotificationMethodType type, String address) {
    try (Handle h = db.open()) {
      if (h
          .update(
              "update notification_method set name = ?, type = ?, address = ? where tenant_id = ? and id = ?",
              name, type.name(), address, tenantId, notificationMethodId) == 0)
        throw new EntityNotFoundException("No notification method exists for %s",
            notificationMethodId);
      return new NotificationMethod(notificationMethodId, name, type, address);
    }
  }
}