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/*
* ============LICENSE_START==========================================
* org.onap.music
* ===================================================================
* Copyright (c) 2017 AT&T Intellectual Property
*
* Modifications Copyright (C) 2019 IBM.
* ===================================================================
* 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.onap.music.eelf.healthcheck;
import java.util.UUID;
import org.onap.music.datastore.MusicDataStoreHandle;
import org.onap.music.datastore.PreparedQueryObject;
import org.onap.music.eelf.logging.EELFLoggerDelegate;
import org.onap.music.eelf.logging.format.AppMessages;
import org.onap.music.eelf.logging.format.ErrorSeverity;
import org.onap.music.eelf.logging.format.ErrorTypes;
import org.onap.music.exceptions.MusicQueryException;
import org.onap.music.exceptions.MusicServiceException;
import org.onap.music.main.MusicUtil;
import org.onap.music.main.ResultType;
import org.onap.music.main.MusicCore;
import com.datastax.driver.core.ConsistencyLevel;
/**
* @author inam
*
*/
public class MusicHealthCheck {
private static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MusicUtil.class);
private String cassandrHost;
public String getCassandraStatus(String consistency) {
logger.info(EELFLoggerDelegate.applicationLogger, "Getting Status for Cassandra");
boolean result = false;
UUID randomUUID = UUID.randomUUID();
try {
result = getAdminKeySpace(consistency, randomUUID);
} catch( Exception e) {
if(e.getMessage().toLowerCase().contains("unconfigured table healthcheck")) {
logger.error("Error", e);
logger.debug("Creating table....");
try {
boolean ksresult = createKeyspace();
if(ksresult) {
result = getAdminKeySpace(consistency, randomUUID);
}
} catch (MusicServiceException e1) {
logger.error(EELFLoggerDelegate.errorLogger, e1.getMessage(), AppMessages.UNKNOWNERROR, ErrorSeverity.ERROR, ErrorTypes.UNKNOWN, e1);
} catch (MusicQueryException e1) {
logger.error(EELFLoggerDelegate.errorLogger, e1.getMessage(), AppMessages.UNKNOWNERROR, ErrorSeverity.ERROR, ErrorTypes.UNKNOWN,e1);
}
} else {
logger.error("Error", e);
return "One or more nodes are down or not responding.";
}
}
try {
cleanHealthCheckId(randomUUID);
} catch (MusicServiceException | MusicQueryException e) {
logger.error("Error while cleaning healthcheck record id...", e);
}
if (result) {
return "ACTIVE";
} else {
logger.info(EELFLoggerDelegate.applicationLogger, "Cassandra Service is not responding");
return "INACTIVE";
}
}
private Boolean getAdminKeySpace(String consistency, UUID randomUUID) throws MusicServiceException,MusicQueryException {
PreparedQueryObject pQuery = new PreparedQueryObject();
pQuery.appendQueryString("insert into admin.healthcheck (id) values (?)");
pQuery.addValue(randomUUID);
ResultType rs = null;
rs = MusicCore.nonKeyRelatedPut(pQuery, consistency);
logger.info(rs.toString());
return null != rs;
}
private void cleanHealthCheckId(UUID randomUUID) throws MusicServiceException, MusicQueryException {
String cleanQuery = "delete from admin.healthcheck where id = ?";
PreparedQueryObject deleteQueryObject = new PreparedQueryObject();
deleteQueryObject.appendQueryString(cleanQuery);
deleteQueryObject.addValue(randomUUID);
MusicDataStoreHandle.getDSHandle().executePut(deleteQueryObject, "eventual");
logger.info(EELFLoggerDelegate.applicationLogger, "Cassandra healthcheck responded and cleaned up.");
}
private boolean createKeyspace() throws MusicServiceException,MusicQueryException {
PreparedQueryObject pQuery = new PreparedQueryObject();
pQuery.appendQueryString("CREATE TABLE admin.healthcheck (id uuid PRIMARY KEY)");
ResultType rs = null ;
rs = MusicCore.nonKeyRelatedPut(pQuery, ConsistencyLevel.ONE.toString());
return rs != null && rs.getResult().toLowerCase().contains("success");
}
public String getCassandrHost() {
return cassandrHost;
}
public void setCassandrHost(String cassandrHost) {
this.cassandrHost = cassandrHost;
}
}
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