HibernateHistoryDao.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.SEQUENCE_NUMBER_PROPERTY;

import org.hibernate.criterion.Restrictions;
import org.kaaproject.kaa.server.common.dao.impl.HistoryDao;
import org.kaaproject.kaa.server.common.dao.model.sql.History;
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 HibernateHistoryDao extends HibernateAbstractDao<History>
    implements HistoryDao<History> {

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

  @Override
  public List<History> findByAppId(String appId) {
    List<History> histories = Collections.emptyList();
    LOG.debug("Searching history by application id [{}]", appId);
    if (isNotBlank(appId)) {
      histories = findListByCriterionWithAlias(APPLICATION_PROPERTY, APPLICATION_ALIAS,
          Restrictions.eq(APPLICATION_REFERENCE, Long.valueOf(appId)));
    }
    if (LOG.isTraceEnabled()) {
      LOG.trace("[{}] Search result: {}.", appId, Arrays.toString(histories.toArray()));
    } else {
      LOG.debug("[{}] Search result: {}.", appId, histories.size());
    }
    return histories;
  }

  @Override
  public History findBySeqNumber(String appId, int seqNum) {
    History history = null;
    LOG.debug("Searching history by application id [{}] and sequence number [{}]", appId, seqNum);
    if (isNotBlank(appId)) {
      history = findOneByCriterionWithAlias(APPLICATION_PROPERTY, APPLICATION_ALIAS,
          Restrictions.and(
              Restrictions.eq(APPLICATION_REFERENCE, Long.valueOf(appId)),
              Restrictions.eq(SEQUENCE_NUMBER_PROPERTY, seqNum)));
    }
    if (LOG.isTraceEnabled()) {
      LOG.trace("[{},{}] Search result: {}.", appId, seqNum, history);
    } else {
      LOG.debug("[{},{}] Search result: {}.", appId, seqNum, history != null);
    }
    return history;
  }

  @Override
  public List<History> findBySeqNumberStart(String appId, int startSeqNum) {
    List<History> histories = Collections.emptyList();
    LOG.debug("Searching history by application id [{}] start sequence number [{}]",
        appId, startSeqNum);
    if (isNotBlank(appId)) {
      histories = findListByCriterionWithAlias(APPLICATION_PROPERTY, APPLICATION_ALIAS,
          Restrictions.and(
              Restrictions.eq(APPLICATION_REFERENCE, Long.valueOf(appId)),
              Restrictions.gt(SEQUENCE_NUMBER_PROPERTY, startSeqNum)));
    }

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

  @Override
  public List<History> findBySeqNumberRange(String appId, int startSeqNum, int endSeqNum) {
    List<History> histories = Collections.emptyList();
    LOG.debug("Searching history by application id {} start sequence number {} and end {}",
        appId, startSeqNum, endSeqNum);
    if (isNotBlank(appId)) {
      histories = findListByCriterionWithAlias(APPLICATION_PROPERTY, APPLICATION_ALIAS,
          Restrictions.and(
              Restrictions.eq(APPLICATION_REFERENCE, Long.valueOf(appId)),
              Restrictions.gt(SEQUENCE_NUMBER_PROPERTY, startSeqNum),
              Restrictions.le(SEQUENCE_NUMBER_PROPERTY, endSeqNum)));
    }

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

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