HibernateApplicationDao.java

/*
 * Copyright 2014-2016 CyberVision, 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.
 */

package org.kaaproject.kaa.server.common.dao.impl.sql;

import static org.kaaproject.kaa.server.common.dao.DaoConstants.APPLICATION_NAME_PROPERTY;
import static org.kaaproject.kaa.server.common.dao.DaoConstants.APPLICATION_TOKEN_PROPERTY;
import static org.kaaproject.kaa.server.common.dao.DaoConstants.TENANT_ALIAS;
import static org.kaaproject.kaa.server.common.dao.DaoConstants.TENANT_ENTITY_NAME;
import static org.kaaproject.kaa.server.common.dao.DaoConstants.TENANT_PROPERTY;
import static org.kaaproject.kaa.server.common.dao.DaoConstants.TENANT_REFERENCE;

import org.hibernate.criterion.Restrictions;
import org.kaaproject.kaa.server.common.dao.impl.ApplicationDao;
import org.kaaproject.kaa.server.common.dao.model.sql.Application;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Repository;

import java.util.Arrays;
import java.util.List;

@Repository
public class HibernateApplicationDao extends HibernateAbstractDao<Application>
    implements ApplicationDao<Application> {

  private static final Logger LOG = LoggerFactory.getLogger(HibernateApplicationDao.class);

  @Override
  protected Class<Application> getEntityClass() {
    return Application.class;
  }

  @Override
  public List<Application> findByTenantId(String tenantId) {
    LOG.debug("Searching applications by tenant id [{}]", tenantId);
    List<Application> applications = findListByCriterionWithAlias(
        TENANT_ENTITY_NAME, TENANT_ALIAS,
        Restrictions.eq(TENANT_REFERENCE, Long.valueOf(tenantId)));

    if (LOG.isTraceEnabled()) {
      LOG.trace("[{}] Search result: {}.", tenantId, Arrays.toString(applications.toArray()));
    } else {
      LOG.debug("[{}] Search result: {}.", tenantId, applications.size());
    }
    return applications;
  }

  @Override
  public Application findByApplicationToken(String token) {
    LOG.debug("Searching for application by token {}", token);
    Application app = findOneByCriterion(Restrictions.eq(APPLICATION_TOKEN_PROPERTY, token));
    if (LOG.isTraceEnabled()) {
      LOG.trace("[{}] Search result: {}.", token, app);
    } else {
      LOG.debug("[{}] Search result: {}.", token, app != null);
    }
    return app;
  }

  // TODO: Need to add optimistic lock
  @Override
  public Application getNextSeqNumber(String id) {
    Application app = findById(id);
    if (app != null) {
      app.incrementSequenceNumber();
      save(app);
      LOG.debug("Incremented application sequence number to {}", app.getSequenceNumber());
    }
    return app;
  }

  @Override
  public Application findByNameAndTenantId(String name, String tenantId) {
    LOG.debug("Searching for application by name [{}] and tenant id [{}] ", name, tenantId);
    Application application = findOneByCriterionWithAlias(TENANT_PROPERTY, TENANT_ALIAS,
        Restrictions.and(
            Restrictions.eq(TENANT_REFERENCE, Long.valueOf(tenantId)),
            Restrictions.eq(APPLICATION_NAME_PROPERTY, name)));
    if (LOG.isTraceEnabled()) {
      LOG.trace("[{},{}] Search result: {}.", name, tenantId, application);
    } else {
      LOG.debug("[{},{}] Search result: {}.", name, tenantId, application != null);
    }
    return application;
  }

  @Override
  public void removeByApplicationToken(String token) {
    Application app = findByApplicationToken(token);
    if (app != null) {
      remove(app);
    }
    LOG.debug("Removed application by application token [{}] ", token);
  }
}