HibernateLogAppenderDao.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.LOG_APPENDER_MAX_LOG_SCHEMA_VERSION;
import static org.kaaproject.kaa.server.common.dao.DaoConstants.LOG_APPENDER_MIN_LOG_SCHEMA_VERSION;

import org.hibernate.criterion.Restrictions;
import org.kaaproject.kaa.server.common.dao.impl.LogAppenderDao;
import org.kaaproject.kaa.server.common.dao.model.sql.LogAppender;
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 HibernateLogAppenderDao extends HibernateAbstractDao<LogAppender>
        implements LogAppenderDao<LogAppender> {

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

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

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

  @Override
  public List<LogAppender> findByAppIdAndSchemaVersion(String appId, int schemaVersion) {
    LOG.debug("Searching log appenders by application id [{}] and schema version [{}]",
            appId, schemaVersion);
    List<LogAppender> appenders = Collections.emptyList();
    if (isNotBlank(appId)) {
      appenders = findListByCriterionWithAlias(APPLICATION_PROPERTY, APPLICATION_ALIAS,
          Restrictions.and(
              Restrictions.eq(APPLICATION_REFERENCE, Long.valueOf(appId)),
              Restrictions.le(LOG_APPENDER_MIN_LOG_SCHEMA_VERSION, schemaVersion),
              Restrictions.ge(LOG_APPENDER_MAX_LOG_SCHEMA_VERSION, schemaVersion))
      );
    }
    if (LOG.isTraceEnabled()) {
      LOG.trace("[{},{}] Search result: {}.", appId, schemaVersion,
              Arrays.toString(appenders.toArray()));
    } else {
      LOG.debug("[{},{}] Search result: {}.", appId, schemaVersion, appenders.size());
    }
    return appenders;
  }

}