HibernateServerProfileSchemaDao.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.apache.commons.lang.StringUtils.isNotBlank;
import static org.kaaproject.kaa.server.common.dao.DaoConstants.APPLICATION_ALIAS;
import static org.kaaproject.kaa.server.common.dao.DaoConstants.APPLICATION_PROPERTY;
import static org.kaaproject.kaa.server.common.dao.DaoConstants.APPLICATION_REFERENCE;
import static org.kaaproject.kaa.server.common.dao.DaoConstants.VERSION_PROPERTY;
import static org.kaaproject.kaa.server.common.dao.model.sql.ModelUtils.getLongId;

import org.hibernate.Criteria;
import org.hibernate.criterion.Order;
import org.hibernate.criterion.Restrictions;
import org.kaaproject.kaa.server.common.dao.impl.ServerProfileSchemaDao;
import org.kaaproject.kaa.server.common.dao.model.sql.ServerProfileSchema;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Repository;

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

@Repository
public class HibernateServerProfileSchemaDao extends HibernateAbstractDao<ServerProfileSchema>
        implements ServerProfileSchemaDao<ServerProfileSchema> {

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

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

  @Override
  public ServerProfileSchema findLatestByAppId(String appId) {
    ServerProfileSchema latestSchema = null;
    LOG.debug("Searching latest server profile schema by application id [{}] ", appId);
    if (isNotBlank(appId)) {
      Criteria criteria = getCriteria().createAlias(APPLICATION_PROPERTY, APPLICATION_ALIAS)
          .add(Restrictions.eq(APPLICATION_REFERENCE, getLongId(appId)))
          .addOrder(Order.desc(VERSION_PROPERTY)).setMaxResults(FIRST);
      latestSchema = findOneByCriteria(criteria);
    }
    if (LOG.isTraceEnabled()) {
      LOG.trace("[{}] Search result: {}.", appId, latestSchema);
    } else {
      LOG.debug("[{}] Search result: {}.", appId, latestSchema != null);
    }
    return latestSchema;
  }

  @Override
  public List<ServerProfileSchema> findByAppId(String appId) {
    List<ServerProfileSchema> schemas = Collections.emptyList();
    LOG.debug("Searching server profile schemas by application id [{}] ", appId);
    if (isNotBlank(appId)) {
      schemas = findListByCriterion(Restrictions.eq(APPLICATION_REFERENCE, getLongId(appId)));
    }
    if (LOG.isTraceEnabled()) {
      LOG.trace("[{}] Search result: {}.", appId, Arrays.toString(schemas.toArray()));
    } else {
      LOG.debug("[{}] Search result: {}.", appId, schemas.size());
    }
    return schemas;
  }

  @Override
  public ServerProfileSchema findByAppIdAndVersion(String appId, int version) {
    LOG.debug("Searching server profile schema by application id [{}] and version [{}]",
            appId, version);
    ServerProfileSchema schema = null;
    if (isNotBlank(appId)) {
      schema = findOneByCriterionWithAlias(
              APPLICATION_PROPERTY, APPLICATION_ALIAS, Restrictions.and(
              Restrictions.eq(APPLICATION_REFERENCE, Long.valueOf(appId)),
              Restrictions.eq(VERSION_PROPERTY, version)));
    }
    if (LOG.isTraceEnabled()) {
      LOG.trace("[{},{}] Search result: {}.", appId, version, schema);
    } else {
      LOG.debug("[{},{}] Search result: {}.", appId, version, schema != null);
    }
    return schema;
  }

  @Override
  public void removeByAppId(String appId) {
    if (isNotBlank(appId)) {
      List<ServerProfileSchema> schemaList = findListByCriterion(Restrictions.eq(
              APPLICATION_REFERENCE, getLongId(appId)));
      removeList(schemaList);
    }
    LOG.debug("Removed server profile schemas by application id [{}]", appId);
  }
}