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package org.openecomp.sdc.be.dao.cassandra.schema;
import com.datastax.driver.core.*;
import org.openecomp.sdc.be.config.ConfigurationManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.List;
public class SdcSchemaUtils {
private static Logger log = LoggerFactory.getLogger(SdcSchemaUtils.class.getName());
/**
* the method creates the cluster object using the supplied cassandra nodes
* in the configuration
*
* @return cluster object our null in case of an invalid configuration
*/
public static Cluster createCluster() {
List<String> nodes = ConfigurationManager.getConfigurationManager().getConfiguration().getCassandraConfig().getCassandraHosts();
if (nodes == null) {
log.info("no nodes were supplied in configuration.");
return null;
}
log.info("connecting to node:{}.", nodes);
Cluster.Builder clusterBuilder = Cluster.builder();
nodes.forEach(host -> clusterBuilder.addContactPoint(host));
clusterBuilder.withMaxSchemaAgreementWaitSeconds(60);
boolean authenticate = ConfigurationManager.getConfigurationManager().getConfiguration().getCassandraConfig().isAuthenticate();
if (authenticate) {
String username = ConfigurationManager.getConfigurationManager().getConfiguration().getCassandraConfig().getUsername();
String password = ConfigurationManager.getConfigurationManager().getConfiguration().getCassandraConfig().getPassword();
if (username == null || password == null) {
log.info("authentication is enabled but username or password were not supplied.");
return null;
}
clusterBuilder.withCredentials(username, password);
}
boolean ssl = ConfigurationManager.getConfigurationManager().getConfiguration().getCassandraConfig().isSsl();
if (ssl) {
String truststorePath = ConfigurationManager.getConfigurationManager().getConfiguration().getCassandraConfig().getTruststorePath();
String truststorePassword = ConfigurationManager.getConfigurationManager().getConfiguration().getCassandraConfig().getTruststorePassword();
if (truststorePath == null || truststorePassword == null) {
log.info("ssl is enabled but truststorePath or truststorePassword were not supplied.");
return null;
}
System.setProperty("javax.net.ssl.trustStore", truststorePath);
System.setProperty("javax.net.ssl.trustStorePassword", truststorePassword);
clusterBuilder.withSSL();
}
return clusterBuilder.build();
}
public static boolean executeStatement(String statement) {
return executeStatements(statement);
}
public static boolean executeStatements(String ... statements) {
Cluster cluster = null;
Session session = null;
try {
cluster = createCluster();
if (cluster == null) {
return false;
}
session = cluster.connect();
for (String statement : statements) {
session.execute(statement);
}
return true;
} catch (RuntimeException e) {
log.error(String.format("could not execute statements"), e);
return false;
} finally {
if (session != null) {
session.close();
}
if (cluster != null) {
cluster.close();
}
}
}
}
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