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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.openecomp.sdc.health.impl;
import com.datastax.driver.core.ResultSet;
import com.datastax.driver.core.exceptions.DriverException;
import com.datastax.driver.mapping.annotations.Accessor;
import com.datastax.driver.mapping.annotations.Query;
import org.openecomp.core.nosqldb.api.NoSqlDb;
import org.openecomp.core.nosqldb.factory.NoSqlDbFactory;
import org.openecomp.sdc.health.HealthCheckDao;
import org.openecomp.sdc.logging.api.Logger;
import org.openecomp.sdc.logging.api.LoggerFactory;
public class HealthCheckDaoImpl implements HealthCheckDao {
private static final NoSqlDb noSqlDb = NoSqlDbFactory.getInstance().createInterface();
private static final CheckHealthAccessor accessor =
noSqlDb.getMappingManager().createAccessor(CheckHealthAccessor.class);
private static final Logger logger = LoggerFactory.getLogger(HealthCheckDaoImpl.class);
@Override
public boolean checkHealth() throws Exception {
try {
ResultSet resultSet = accessor.checkHealth();
return resultSet.getColumnDefinitions().contains("key");
} catch (DriverException ex) {
logger.error("Health check failure" + ex.getMessage(), ex);
throw ex;
} catch (Exception ex) {
logger.error("Health check failure" + ex.getMessage(), ex);
throw new Exception("Internal Error.");
}
}
@Override
public String getVersion() {
return noSqlDb.getVersion();
}
@Accessor
interface CheckHealthAccessor {
@Query("SELECT * FROM application_config LIMIT 1")
ResultSet checkHealth();
}
}
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