2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
21 package org.openecomp.sdc.health.impl;
24 import com.datastax.driver.core.ResultSet;
25 import com.datastax.driver.core.exceptions.DriverException;
26 import com.datastax.driver.mapping.annotations.Accessor;
27 import com.datastax.driver.mapping.annotations.Query;
28 import org.openecomp.core.nosqldb.api.NoSqlDb;
29 import org.openecomp.core.nosqldb.factory.NoSqlDbFactory;
30 import org.openecomp.sdc.health.HealthCheckDao;
31 import org.openecomp.sdc.logging.api.Logger;
32 import org.openecomp.sdc.logging.api.LoggerFactory;
34 public class HealthCheckDaoImpl implements HealthCheckDao {
36 private static final NoSqlDb noSqlDb = NoSqlDbFactory.getInstance().createInterface();
38 private static final CheckHealthAccessor accessor =
39 noSqlDb.getMappingManager().createAccessor(CheckHealthAccessor.class);
40 private static final Logger logger = LoggerFactory.getLogger(HealthCheckDaoImpl.class);
43 public boolean checkHealth() throws Exception {
45 ResultSet resultSet = accessor.checkHealth();
46 return resultSet.getColumnDefinitions().contains("key");
47 } catch (DriverException ex) {
48 logger.error("Health check failure" + ex.getMessage(), ex);
50 } catch (Exception ex) {
51 logger.error("Health check failure" + ex.getMessage(), ex);
52 throw new Exception("Internal Error.");
57 public String getVersion() {
58 return noSqlDb.getVersion();
62 interface CheckHealthAccessor {
64 @Query("SELECT * FROM application_config LIMIT 1")
65 ResultSet checkHealth();