How to connect the Oracle database from AEM as a cloud service?

<dependency>
 <groupId>com.oracle.database.jdbc</groupId>
 <artifactId>ojdbc-bom</artifactId>
 <version>21.5.0.0</version>
 <type>pom</type>
 <scope>import</scope>
 </dependency>

<dependency>
 <groupId>com.oracle.database.jdbc</groupId>
 <artifactId>ojdbc8</artifactId>
 </dependency>
 <dependency>
 <groupId>com.oracle.database.jdbc</groupId>
 <artifactId>ucp</artifactId>
 </dependency>
 <dependency>
 <groupId>com.oracle.database.xml</groupId>
 <artifactId>xdb</artifactId>
 </dependency>

package com.mysite.core.services;
public interface DatabaseService {
}

package com.mysite.core.services;
import com.day.commons.datasource.poolservice.DataSourcePool;
import org.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.sql.DataSource;
import java.sql.Connection;
@Component(
 service = DatabaseService.class,
 immediate = true
)
public class DatabaseServiceImpl implements DatabaseService {
 private final Logger LOGGER = LoggerFactory.getLogger(DatabaseService.class);
 @Reference
 private DataSourcePool dataSourcePool;
 @Activate
 public void activate() {
 try {
 DataSource dataSource = (DataSource) dataSourcePool.getDataSource("oracle");
 Connection connection = dataSource.getConnection();
 if (connection != null) {
 if (!connection.isClosed()) {
 LOGGER.info("Connected with connection #4");
 connection.close();
 }
 }
 else {
 LOGGER.info("Connection is null");
 }
 } catch (Exception ex) {
 LOGGER.error("It was not possible to get the data source: " + ex.getMessage(), ex);
 }
 }
}