Stoping MongoTemplate after completion of Operations

Step 1 : 

import org.springframework.data.mongodb.MongoDbFactory;
import org.springframework.data.mongodb.core.MongoTemplate;

public class CustomMongoTemplate extends MongoTemplate {

public CustomMongoTemplate(MongoDbFactory mongoDbFactory) {
super(mongoDbFactory);
}

@Override
protected void finalize() throws Throwable {
this.getDb().getMongo().close();
}
}

Step 2:

  public static MongoClient getMongoInstance() {
        if (_mongoClient == null) {
            try {
            MongoCredential credential = MongoCredential.createCredential(getMongoUser(), getAuthDatabase(), MONGO_PWD.toCharArray());
                ServerAddress serverAddress = new ServerAddress(getMongoDBServerName(), getMongoDBServerPort());
                MongoClientOptions.Builder options = new MongoClientOptions.Builder();
            _mongoClient = new MongoClient(serverAddress, credential, options.build());
            } catch (Exception e) {
                log.error("MongoDBClient::getMongoInstance Exception --> " + e.getLocalizedMessage());
                log.info("Exception : ", e);
            }
        }

        return _mongoClient;
    }
======================================================
 public static MongoClient getMongoInstance(int timeOut) {

    MongoClient myMongoClient = null;

    if(timeOut==-1) {

        return getMongoInstance();

        }else {

                try {

                MongoCredential credential = MongoCredential.createCredential(getMongoUser(), getAuthDatabase(), MONGO_PWD.toCharArray());

                MongoClientOptions.Builder options = new MongoClientOptions.Builder();

                options.socketTimeout(timeOut).connectTimeout(timeOut).maxWaitTime(timeOut);

               

                    ServerAddress serverAddress = new ServerAddress(getMongoDBServerName(), getMongoDBServerPort());

                    myMongoClient = new MongoClient(serverAddress, Arrays.asList(credential),options.build());

                } catch (Exception e) {

                  log.error("MongoDBClient::getMongoInstance Exception --> " + e.getLocalizedMessage());

                      log.info("Exception : ", e);

                }

        }

        return myMongoClient;

    } 

======================================================

public MongoDbFactory mongoDbFactory(String dbName, int timeOut) {

return new SimpleMongoDbFactory(MongoDBClient.getMongoInstance(timeOut), "my_" + dbName);

}

========================================================

public MongoTemplate mongoTemplate(String dbName, int tomeOut) {

if (dbName == null || dbName.isEmpty())

return null;

return new CustomMongoTemplate(mongoDbFactory(dbName.replace(" ", "_"), tomeOut));

}

=====================================================

Step 3 : Usage -->

someClass.mongoTemplate("dbName", 23);