What is the appropriate driver to load for embedded DynamoDB in a Spring app? - spring

Question

I followed various tutorials to end up with the configuration below. There may also be incorrect configuration causing the problem. When I run the tests, I get:
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.tomcat.jdbc.pool.DataSource]: Factory method 'dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (the profiles "test" are currently active).
Research has lead me to believe that the appropriate driver is not being loaded and I have to add it to .properties. Is that something included in DynamoDBLocal library? I can't find it in the docs and it seems my only option is to get a 3rd party driver from the web.
Here's are the important parts:
pom.xml:
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk-dynamodb</artifactId>
<version>1.11.34</version>
</dependency>
<dependency>
<groupId>com.github.derjust</groupId>
<artifactId>spring-data-dynamodb</artifactId>
<version>4.3.1</version>
</dependency>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>DynamoDBLocal</artifactId>
<version>1.10.5.1</version>
</dependency>
DataSourceConfigLocal:
#Configuration
#EnableWebMvc
#EnableDynamoDBRepositories(basePackages="com.cfa.dao")
#Profile({"local", "test"})
public class DataSourceConfigLocal {
#Value("${amazon.dynamodb.endpoint}")
private String amazonDynamoDBEndpoint;
#Value("${amazon.aws.accesskey}")
private String amazonAWSAccessKey;
#Value("${amazon.aws.secretkey}")
private String amazonAWSSecretKey;
#Bean
public AmazonDynamoDB amazonDynamoDB() {
AmazonDynamoDB amazonDynamoDB
= new AmazonDynamoDBClient(amazonAWSCredentials());
if (!StringUtils.isEmpty(amazonDynamoDBEndpoint)) {
amazonDynamoDB.setEndpoint(amazonDynamoDBEndpoint);
}
return amazonDynamoDB;
}
#Bean
public AWSCredentials amazonAWSCredentials() {
return new BasicAWSCredentials(
amazonAWSAccessKey, amazonAWSSecretKey);
}
}
IntegrationTest:
#RunWith(SpringJUnit4ClassRunner.class)
#WebAppConfiguration
#Profile("test")
#TestPropertySource(properties = {
"amazon.dynamodb.endpoint=http://localhost:8000/",
"amazon.aws.accesskey=x",
"amazon.aws.secretkey=x" })
public class OrderRequestRepositoryIntegrationTest {
private DynamoDBMapper dynamoDBMapper;
#Autowired
private AmazonDynamoDB amazonDynamoDB;
#Autowired
OrderRequestDao orderRequestDao;
private static final String STORE_NUMBER = "100";
#Before
public void setup() throws Exception {
dynamoDBMapper = new DynamoDBMapper(amazonDynamoDB);
CreateTableRequest tableRequest = dynamoDBMapper
.generateCreateTableRequest(OrderRequest.class);
tableRequest.setProvisionedThroughput(
new ProvisionedThroughput(1L, 1L));
amazonDynamoDB.createTable(tableRequest);
dynamoDBMapper.batchDelete(
(List<OrderRequest>)orderRequestDao.findAll());
}
#Test
public void sampleTestCase() {
OrderRequest orderRequest = new OrderRequest(STORE_NUMBER);
orderRequestDao.save(orderRequest);
List<OrderRequest> result
= (List<OrderRequest>) orderRequestDao.findAll();
assertTrue("Not empty", result.size() > 0);
assertTrue("Contains item with expected cost",
result.get(0).getStoreNumber().equals(STORE_NUMBER));
}
}

Answer 1

I am not sure whether you have already referred this. I am adding this as it may help you.
Test using HTTP and without using HTTP
pom file which has the server runner and sql lite
1) Also, use the latest version 1.11.0.1 of the JAR.
2) SQL Lite lib in classpath
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>DynamoDBLocal</artifactId>
<version>${aws.dynamodblocal.version}</version>
</dependency>
<profile>
<id>start-dynamodb-local</id>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>${exec.maven.plugin.version}</version>
<executions>
<execution>
<phase>initialize</phase>
<configuration>
<executable>java</executable>
<arguments>
<argument>-cp</argument>
<classpath/>
<argument>-Dsqlite4java.library.path=${basedir}/target/dependencies</argument>
<argument>com.amazonaws.services.dynamodbv2.local.main.ServerRunner</argument>
<argument>-inMemory</argument>
<argument>-port</argument>
<argument>${dynamodb-local.port}</argument>
</arguments>
</configuration>
<goals>
<goal>exec</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>