How to customize AbstractCassandraConfiguration class? - spring-data-cassandra

Question

I am new to Spring framework. I am working on a Spring Data Cassandra project where I want to set up a Cassandra keyspace and table programmatically. Most of the examples I found on the Web require manual set up of them using cqlsh.
As a start, I create a spring starter project on STS4 with only the Cassandra dependency selected. Here are the dependencies in my pom file:
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-cassandra</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
Then I added my CassandraConfiguration class which extends the AbstractCassandraConfiguration class. I fixed editor warning by implementing the only missing method getKeyspaceName(). Here is my added code.
package com.example.demo;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.cassandra.config.AbstractCassandraConfiguration;
import org.springframework.data.cassandra.repository.config.EnableCassandraRepositories;
#Configuration
#EnableCassandraRepositories
public class CassandraConfiguration extends AbstractCassandraConfiguration {
#Override
protected String getKeyspaceName() {
return "demo";
}
}
But when I launch my spring boot app, it has the following error:
2019-04-18 14:54:24.588 INFO 38410 --- [ main] com.datastax.driver.core : DataStax Java driver 3.6.0 for Apache Cassandra
2019-04-18 14:54:24.590 INFO 38410 --- [ main] c.d.driver.core.GuavaCompatibility : Detected Guava >= 19 in the classpath, using modern compatibility layer
2019-04-18 14:54:24.694 INFO 38410 --- [ main] com.datastax.driver.core.ClockFactory : Using native clock to generate timestamps.
2019-04-18 14:54:24.880 INFO 38410 --- [ main] com.datastax.driver.core.NettyUtil : Did not find Netty's native epoll transport in the classpath, defaulting to NIO.
2019-04-18 14:54:24.909 WARN 38410 --- [ main] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'session' defined in class path resource [com/example/demo/CassandraConfiguration.class]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: com/codahale/metrics/JmxReporter
2019-04-18 14:54:27.174 INFO 38410 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2019-04-18 14:54:27.182 ERROR 38410 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'session' defined in class path resource [com/example/demo/CassandraConfiguration.class]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: com/codahale/metrics/JmxReporter
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1778) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$$Lambda$76/1793436274.getObject(Unknown Source) ~[na:na]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:830) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877) ~[spring-context-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775) [spring-boot-2.1.5.BUILD-SNAPSHOT.jar:2.1.5.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) [spring-boot-2.1.5.BUILD-SNAPSHOT.jar:2.1.5.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:316) [spring-boot-2.1.5.BUILD-SNAPSHOT.jar:2.1.5.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) [spring-boot-2.1.5.BUILD-SNAPSHOT.jar:2.1.5.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) [spring-boot-2.1.5.BUILD-SNAPSHOT.jar:2.1.5.BUILD-SNAPSHOT]
at com.example.demo.CassandraDemoApplication.main(CassandraDemoApplication.java:10) [classes/:na]
Caused by: java.lang.NoClassDefFoundError: com/codahale/metrics/JmxReporter
at com.datastax.driver.core.Metrics.<init>(Metrics.java:146) ~[cassandra-driver-core-3.6.0.jar:na]
at com.datastax.driver.core.Cluster$Manager.init(Cluster.java:1501) ~[cassandra-driver-core-3.6.0.jar:na]
at com.datastax.driver.core.Cluster.init(Cluster.java:208) ~[cassandra-driver-core-3.6.0.jar:na]
at com.datastax.driver.core.Cluster.connectAsync(Cluster.java:376) ~[cassandra-driver-core-3.6.0.jar:na]
at com.datastax.driver.core.Cluster.connect(Cluster.java:332) ~[cassandra-driver-core-3.6.0.jar:na]
at org.springframework.data.cassandra.config.CassandraCqlSessionFactoryBean.connect(CassandraCqlSessionFactoryBean.java:89) ~[spring-data-cassandra-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.data.cassandra.config.CassandraCqlSessionFactoryBean.afterPropertiesSet(CassandraCqlSessionFactoryBean.java:82) ~[spring-data-cassandra-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.data.cassandra.config.CassandraSessionFactoryBean.afterPropertiesSet(CassandraSessionFactoryBean.java:59) ~[spring-data-cassandra-2.1.6.RELEASE.jar:2.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1837) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1774) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
... 16 common frames omitted
Caused by: java.lang.ClassNotFoundException: com.codahale.metrics.JmxReporter
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_45]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_45]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) ~[na:1.8.0_45]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_45]
... 26 common frames omitted
So apparently besides the missing method, there are other things I need to add to my config class to make it work. Can someone give me an idea what I am missing and how to proceed?

Answer 1

In Metrics 4, JMX reporting was moved to a separate module, metrics-jmx, and this causes that error - it's even described in the documentation. You can either add to your pom.xml:
<dependency>
<groupId>io.dropwizard.metrics</groupId>
<artifactId>metrics-jmx</artifactId>
<version>4.0.2</version>
</dependency>
or specify withoutJMXReporting when creating the Cluster object...

Answer 2

Or you can override and disable the metrics in your CassandraConfiguration so you don't need to add the metrics-jmx module
#Override
protected boolean getMetricsEnabled() {
return false;
}