Basic MongoOperations call returning zero

Basic MongoOperations call returning zero - java

Just started using MongoDB with JAVA.
Set up the following JavaObject
package com.foo.bar
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
#Document(collection = "cameras")
public class Camera {
#Id
private int id= -1;
String name = "";
String orientation = "";
boolean tempdis = false;
int refreshRate = -1;
String cityCode = "";
String provider = "";
Location location;
//Gets & Sets Below
}
I then have the following config
package com.foo.bar.config
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.mongodb.MongoDbFactory;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.SimpleMongoDbFactory;
import com.mongodb.MongoClient;
#Configuration
public class SpringMongoConfig {
public #Bean
MongoDbFactory mongoDbFactory() throws Exception {
return new SimpleMongoDbFactory(new MongoClient(), "myDB");
}
public #Bean
MongoTemplate mongoTemplate() throws Exception {
MongoTemplate mongoTemplate = new MongoTemplate(mongoDbFactory());
return mongoTemplate;
}
}
And in my main application
package com.foo.bar
import java.util.List;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.mongodb.core.MongoOperations;
import org.springframework.data.mongodb.repository.config.EnableMongoRepositories;
import com.foo.bar.config.SpringMongoConfig;
import com.foo.bar.Camera;
#Configuration
#EnableMongoRepositories
public class Application {
public static void main(String[] args) {
ApplicationContext ctx = new AnnotationConfigApplicationContext(
SpringMongoConfig.class);
MongoOperations mongoOperation = (MongoOperations) ctx
.getBean("mongoTemplate");
List<Camera> listUser = mongoOperation.findAll(Camera.class);
System.out.println(listUser.size());
}
}
Running this code is getting me a size of 0. However, in the command line I get the following
C:\mongodb\bin>mongo.exe
MongoDB shell version: 2.4.8
connecting to: test
> use myDB
switched to db myDB
> db.Camera.count()
1018
>
Is there something I'm missing?

#Document(collection = "cameras")
public class Camera {
Camera is mapped to collection cameras in your code.
and you are looking up in collection Camera using db.Camera.count()

Related

Redis Server is not getting Refreshed

I'm using redis in my springboot rest application to store cache. But the problem I'm facing is once it is stored in redis my api only hits the redis not the database. I've added time out property it didn't work. I've tried CacheManager to get the cache and call CacheEvict to clear the cache and then CachePut to put the data again, but it didn't work. These are the things I've tried so far. I wanted my redis cache to refresh after a given time set by me. Any advice on this? Here is my code below:
package com.dg.repo;
import java.util.List;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.query.Param;
import com.dg.entity.FlightEntity;
public interface FlightRepo extends JpaRepository<FlightEntity, String> {
#Query(value="select distinct txtFlightName\r\n"
+ "from {test-schema}flights", nativeQuery = true)
List<String> getAllFlights();
#Query(value="select distinct txtFlightName from {test-schema}flights \r\n"
+ "where txtFlightName LIKE %:flightname%",nativeQuery = true)
List<String> getListofFlights(#Param("flightname")String flightname);
#Query(value="select distinct txtBookingCode,txtFlightName from {test-schema}flights \r\n"
+ "where txtFlightName LIKE %:flightname%",nativeQuery = true)
List<FlightEntity> getFlightEntity(#Param("flightname")String flightname);
}
package com.dg.repo;
import java.util.List;
import java.util.Optional;
import java.util.function.Function;
import org.springframework.data.domain.Example;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.redis.core.HashOperations;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.repository.query.FluentQuery.FetchableFluentQuery;
import com.dg.entity.FlightEntity;
public abstract class FlightRepoImpl implements FlightRepo {
RedisTemplate template;
HashOperations hashOperations;
public FlightRepoImpl(RedisTemplate template, HashOperations hashOperations) {
super();
this.template = template;
this.hashOperations = template.opsForHash();
}
#Override
public List<String> getAllFlights() {
return hashOperations.values("FlightModel");
}
#Override
public List<String> getListofFlights(String flightname) {
return (List<String>) hashOperations.get("FlightModel", flightname);
}
}
package com.dg.service;
import org.modelmapper.ModelMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.Cacheable;
import com.dg.model.FlightModel;
import com.dg.repo.FlightRepo;
public class FlightService {
#Autowired
FlightRepo flightRepo;
#Autowired
ModelMapper modelMapper;
#Scheduled(fixedRate = 50000)
#Caching(evict = {#CacheEvict(value="getFlightList", key="#flightname")})
public FlightModel getFlightByFlightName(String flightName)
{
package com.dg.model;
import java.io.Serializable;
import java.util.List;
public class FlightModel implements Serializable{
private List<Object> listofflightname;
public List<Object> getListofflightname() {
return listofflightname;
}
public void setListofflightname(List<Object> listofflightname) {
this.listofflightname = listofflightname;
}
}
package com.dg.entity;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
#Entity
public class FlightEntity {
#Id
#Column(name="txtBookingCode")
private String bookingCode;
#Column(name="txtFlightName")
private String flightname;
public String getBookingCode() {
return bookingCode;
}
public void setBookingCode(String bookingCode) {
this.bookingCode = bookingCode;
}
public String getFlightname() {
return flightname;
}
public void setFlightname(String flightname) {
this.flightname = flightname;
}
}
package com.dg.config;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
import org.springframework.data.redis.connection.RedisClusterConfiguration;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.repository.configuration.EnableRedisRepositories;
import redis.clients.jedis.JedisPoolConfig;
#Configuration
#EnableRedisRepositories
#Profile("test")
public class RedisConfig {
#Value("${spring.redis.cluster.nodes}")
private String nodesProperty;
#Bean
public JedisConnectionFactory jedisConnectionFactory()
{
JedisPoolConfig poolConfig = new JedisPoolConfig();
poolConfig.setMinIdle(2);
poolConfig.setMaxIdle(5);
poolConfig.setMaxTotal(20);
poolConfig.setEvictorShutdownTimeoutMillis(10000);
String [] nodesArray=nodesProperty.split(",");
List<String> nodes = new ArrayList<String>(Arrays.asList(nodesArray));
RedisClusterConfiguration configuration=new RedisClusterConfiguration(nodes);
configuration.setMaxRedirects(100);
JedisConnectionFactory connectionFactory = new JedisConnectionFactory(configuration);
connectionFactory.setPoolConfig(poolConfig);
return connectionFactory;
}
#Bean
public RedisTemplate redisTemplate()
{
RedisTemplate template = new RedisTemplate();
template.setConnectionFactory(jedisConnectionFactory());
return template;
}
}
package com.dg;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cache.annotation.EnableCaching;
#SpringBootApplication
#EnableCaching
public class RedisTestApplication {
public static void main(String[] args) {
SpringApplication.run(RedisTestApplication.class, args);
}
}

How to unit-test a class which has methods using database connection?

I am trying to run tests on a controller class and it has atleast a method which internally uses a DAO to retrieve information from the DB (MySQL).
The problem I have is that the dao method is giving null and I end up with NullPointerException error.
How do I tests a class which has methods that internally use a database connection?
Haven't been able to find any useful post/answer.
Project structure:
src
main
java
[package]
RegisterController.java
Config.java // configuration class
test
java
[package]
RegisterControllerTest.java
RegisterController.java
package com.webapp.controller;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import com.webapp.Config;
import com.webapp.dao.AccountDao;
#Controller
public class RegisterController {
#Autowired
AccountDao accDao;
public String validateUsername(String uname){
List<String> errors = new ArrayList<String>();
// ... unrelated code
// NullPointerException thrown here
if(accDao.getAccountByUsername(uname) != null)
errors.add("err#taken");
return errors.toString();
}
}
RegisterControllerTest.java
import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.springframework.boot.test.context.SpringBootTest;
import com.webapp.controller.RegisterController;
import com.webapp.Config;
#SpringBootTest
public class RegisterControllerTest {
#Mock
private Config config;
private RegisterController rc;
#BeforeEach
public void init() {
config = Mockito.mock(Config.class);
rc = new RegisterController();
}
#Test
public void testValidateUsername() {
assertEquals("[]", rc.validateUsername("Username123")); // N.P.E
}
}
Config.java
package com.webapp;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import com.webapp.dao.AccountDao;
import com.webapp.dao.AccountDaoImpl;
import com.webapp.dao.Dao;
#Configuration
#ComponentScan(basePackages = { "com.webapp.controller", "com.webapp.dao", "com.webapp.test" })
public class Config {
private static class Database {
private static String host = "127.0.0.1";
private static String user = "root";
private static String pass = "root";
private static String dbname = "memedb";
private static int port = 3306;
public static String getUrl() {
return "jdbc:mysql://"+host+":"+port+"/"+dbname+"?serverTimezone=Europe/Stockholm";
}
}
#Bean
public DriverManagerDataSource getDataSource() {
DriverManagerDataSource ds = new DriverManagerDataSource();
ds.setDriverClassName("com.mysql.cj.jdbc.Driver");
ds.setUrl(Database.getUrl());
ds.setUsername(Database.user);
ds.setPassword(Database.pass);
return ds;
}
#Bean
public AccountDao getAccDao() {
return new AccountDaoImpl(getDataSource());
}
}

Instead of mocking config, mock the Dao. You are getting NPE, because the mocked config is not setting #Autowired accDao... so your accDao == null:
#Controller
public class RegisterController {
AccountDao accDao;
public RegisterController(AccountDao accDao) {
this.accDao = accDao;
}
...
}
#BeforeEach
public void init() {
accDaoMock = Mockito.mock(AccountDao.class);
rc = new RegisterController(accDaoMock);
}
#Test
public void testValidateUsername() {
when(accDaoMock.getAccountByUsername("Username123")).thenReturn(null);
assertEquals("[]", rc.validateUsername("Username123"));
}

Why are you configuring the connection DB programmatically? I advise you configure the connection DB with autoconfiguration of Spring Boot.
The DAO object have to mock in an unit test.
Here is a good article about the Junit test for a Spring Boot App.

Spring Data Cassandra cant find entity class

I'm trying to persist a cassandra entity but on startup I get:
Caused by: org.springframework.data.mapping.MappingException: Couldn't find PersistentEntity for type class com.service.model.Cart!
This is my entity class:
package com.service.model;
import io.vavr.collection.LinkedHashMap;
import io.vavr.collection.Map;
import lombok.Getter;
import lombok.ToString;
import org.springframework.data.cassandra.core.mapping.PrimaryKey;
import org.springframework.data.cassandra.core.mapping.Table;
import java.util.Collection;
import java.util.List;
import java.util.Objects;
import java.util.Optional;
import java.util.UUID;
import java.util.function.Function;
#ToString
#Table("carts")
public class Cart {
#Getter
#PrimaryKey
private final UUID uuid;
private final Map<CartItemKey, CartItem> items;
public Cart(UUID uuid) {
this(uuid, LinkedHashMap.empty());
}
private Cart(UUID uuid, Map<CartItemKey, CartItem> items) {
this.uuid = Objects.requireNonNull(uuid, "Cart's uuid cannot be null");
this.items = Objects.requireNonNull(items, "Cart's items cannot be null");
}
}
This is my CassandraConfig:
package com.service.configuration;
import com.service.model.Cart;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.convert.converter.Converter;
import org.springframework.data.cassandra.config.AbstractClusterConfiguration;
import org.springframework.data.cassandra.core.convert.CassandraCustomConversions;
import org.springframework.data.cassandra.core.cql.keyspace.CreateKeyspaceSpecification;
import org.springframework.data.cassandra.core.cql.keyspace.KeyspaceOption;
import org.springframework.util.StringUtils;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import static java.util.Collections.singletonList;
#Configuration
public class CassandraConfig extends AbstractClusterConfiguration {
#Value("${spring.data.cassandra.keyspace-name}")
private String keyspaceName;
#Value("${spring.data.cassandra.contact-points}")
private String contactPoints;
#Override
protected List<CreateKeyspaceSpecification> getKeyspaceCreations() {
return singletonList(
CreateKeyspaceSpecification.createKeyspace(keyspaceName)
.ifNotExists()
.with(KeyspaceOption.DURABLE_WRITES, true)
.withSimpleReplication());
}
#Override
protected boolean getMetricsEnabled() {
return false;
}
#Override
protected String getContactPoints() {
return contactPoints;
}
#Bean
public CassandraCustomConversions customConversions() {
List<Converter<?, ?>> converters = new ArrayList<>();
converters.add(new CartWriteConverter());
converters.add(new CartReadConverter());
return new CassandraCustomConversions(converters);
}
static class CartWriteConverter implements Converter<Cart, String> {
public String convert(Cart source) {
try {
return new ObjectMapper().writeValueAsString(source);
} catch (IOException e) {
throw new IllegalStateException(e);
}
}
}
static class CartReadConverter implements Converter<String, Cart> {
public Cart convert(String source) {
if (StringUtils.hasText(source)) {
try {
return new ObjectMapper().readValue(source, Cart.class);
} catch (IOException e) {
throw new IllegalStateException(e);
}
}
return null;
}
}
}
And lastly my Application:
package com.service.cart;
import org.axonframework.springboot.autoconfig.AxonServerAutoConfiguration;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.autoconfigure.jdbc.DataSourceTransactionManagerAutoConfiguration;
import org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cloud.openfeign.EnableFeignClients;
import org.springframework.data.cassandra.repository.config.EnableCassandraRepositories;
import org.springframework.scheduling.annotation.EnableAsync;
#EnableCaching
#EnableAsync
#EnableFeignClients
#SpringBootApplication
#EnableAutoConfiguration(exclude = {
DataSourceAutoConfiguration.class,
DataSourceTransactionManagerAutoConfiguration.class,
HibernateJpaAutoConfiguration.class,
AxonServerAutoConfiguration.class})
#EnableCassandraRepositories(basePackages = "com.service.repository")
public class Application extends SpringBootServletInitializer {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
What seems puzzling to me is that when I remove customConversions() bean it fails with a different error - not being able to map vavr Map, so spring must have scanned and registered this entity so that it got inspected. This is expected while it is not cassandra data type but in my understanding adding my custom conversions should solve this problem.
I also tried experimenting with #EntityScan with the same results.
Any help would be appreciated.

Query is always execute before than AOP in SpringBoot and MyBatis application for dynamic datasource

Here , I want to make a SpringBoot and MyBatis application use dynamic datasource by AOP; But the AOP is always execute after query from database, so switch datasource is invalid because select is finished.
All my code is in https://github.com/helloworlde/SpringBoot-DynamicDataSource/tree/aspect_dao
My dependence is
compile('org.mybatis.spring.boot:mybatis-spring-boot-starter:1.3.1')
compile('org.springframework.boot:spring-boot-starter-web')
compile('org.springframework.boot:spring-boot-starter-aop')
runtime('mysql:mysql-connector-java')
And application.properties
application.server.db.master.driver-class-name=com.mysql.jdbc.Driver
application.server.db.master.url=jdbc:mysql://localhost/redisapi?useSSL=false
application.server.db.master.port=3306
application.server.db.master.username=root
application.server.db.master.password=ihaveapen*^##
#application.server.db.master.database=123456
#
## application common config
application.server.db.slave.driver-class-name=com.mysql.jdbc.Driver
application.server.db.slave.url=jdbc:mysql:/localhost/redisapi2?useSSL=false
application.server.db.slave.port=3306
application.server.db.slave.username=root
application.server.db.slave.password=123456
#application.server.db.slave.database=redisapi
mybatis.type-aliases-package=cn.com.hellowood.dynamicdatasource.mapper
mybatis.mapper-locations=mappers/**Mapper.xml
Table
CREATE TABLE product(
id INT PRIMARY KEY AUTO_INCREMENT,
name VARCHAR(50) NOT NULL,
price DOUBLE(10,2) NOT NULL DEFAULT 0
);
DataSourceConfigur.java
package cn.com.hellowood.dynamicdatasource.configuration;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;
import javax.sql.DataSource;
import java.util.HashMap;
import java.util.Map;
#Configuration
public class DataSourceConfigurer {
#Bean("master")
#Primary
#ConfigurationProperties(prefix = "application.server.db.master")
public DataSource master() {
return DataSourceBuilder.create().build();
}
#Bean("slave")
#ConfigurationProperties(prefix = "application.server.db.slave")
public DataSource slave() {
return DataSourceBuilder.create().build();
}
#Bean("dynamicDataSource")
public DataSource dynamicDataSource() {
DynamicRoutingDataSource dynamicRoutingDataSource = new DynamicRoutingDataSource();
Map<Object, Object> dataSourceMap = new HashMap<>(2);
dataSourceMap.put("master", master());
dataSourceMap.put("slave", slave());
// Set master datasource as default
dynamicRoutingDataSource.setDefaultTargetDataSource(master());
// Set master and slave datasource as target datasource
dynamicRoutingDataSource.setTargetDataSources(dataSourceMap);
// To put datasource keys into DataSourceContextHolder to judge if the datasource is exist
DynamicDataSourceContextHolder.dataSourceKeys.addAll(dataSourceMap.keySet());
return dynamicRoutingDataSource;
}
#Bean
#ConfigurationProperties(prefix = "mybatis")
public SqlSessionFactoryBean sqlSessionFactoryBean() {
SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
// Here is very important, if don't config this, will can't switch datasource
// put all datasource into SqlSessionFactoryBean, then will autoconfig SqlSessionFactory
sqlSessionFactoryBean.setDataSource(dynamicDataSource());
return sqlSessionFactoryBean;
}
#Bean
public PlatformTransactionManager transactionManager() {
return new DataSourceTransactionManager(dynamicDataSource());
}
}
DynamicRoutingDataSource.java
package cn.com.hellowood.dynamicdatasource.configuration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource;
public class DynamicRoutingDataSource extends AbstractRoutingDataSource {
private final Logger logger = LoggerFactory.getLogger(getClass());
#Override
protected Object determineCurrentLookupKey() {
logger.info("Current DataSource is [{}]", DynamicDataSourceContextHolder.getDataSourceKey());
return DynamicDataSourceContextHolder.getDataSourceKey();
}
}
DynamicDataSourceContextHolder.java
package cn.com.hellowood.dynamicdatasource.configuration;
import java.util.ArrayList;
import java.util.List;
public class DynamicDataSourceContextHolder {
private static final ThreadLocal<String> contextHolder = new ThreadLocal<String>() {
#Override
protected String initialValue() {
return "master";
}
};
public static List<Object> dataSourceKeys = new ArrayList<>();
public static void setDataSourceKey(String key) {
contextHolder.set(key);
}
public static String getDataSourceKey() {
return contextHolder.get();
}
public static void clearDataSourceKey() {
contextHolder.remove();
}
public static boolean containDataSourceKey(String key) {
return dataSourceKeys.contains(key);
}
}
DynamicDataSourceAspect.java
package cn.com.hellowood.dynamicdatasource.configuration;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
#Aspect
#Order(-100) // To ensure execute before #Transactional
#Component
public class DynamicDataSourceAspect {
private static final Logger logger = LoggerFactory.getLogger(DynamicDataSourceAspect.class);
private final String QUERY_PREFIX = "select";
#Pointcut("execution( * cn.com.hellowood.dynamicdatasource.mapper.*.*(..))")
public void daoAspect() {
}
#Before("daoAspect()")
public void switchDataSource(JoinPoint point) {
if (point.getSignature().getName().startsWith(QUERY_PREFIX)) {
DynamicDataSourceContextHolder.setDataSourceKey("slave");
logger.info("Switch DataSource to [{}] in Method [{}]",
DynamicDataSourceContextHolder.getDataSourceKey(), point.getSignature());
}
}
#After("daoAspect())")
public void restoreDataSource(JoinPoint point) {
DynamicDataSourceContextHolder.clearDataSourceKey();
logger.info("Restore DataSource to [{}] in Method [{}]",
DynamicDataSourceContextHolder.getDataSourceKey(), point.getSignature());
}
}
And have Controller, Service and Dao for query, But although I set Order of aspect as -100, it still execute query before AOP, could anyone find where is wrong, Thank you very much.
This is log screenshot

Finally I fixed this issue, Because I injected Bean of DataSourceTransactionManager, So transaction will be open in Service, so the aspect of DAO is not work until transaction finished.
Delete this code:
#Bean
public PlatformTransactionManager transactionManager() {
return new DataSourceTransactionManager(dynamicDataSource());
}

Spring #Autowired fails when ApplicationContext is inside another context

I'm trying to put together an SDK that uses Spring internally through a context it manages of its own. I want the jar that gets built to be usable regardless of whether or not Spring is in use on the application that wants to use the SDK.
I have something that works when it is running on its own. However if I attempt to use the SDK inside another Spring context (in my case a Spring Boot based application) I get a org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type exception.
Try as I might I cannot understand how to get this working, or indeed what I am doing wrong. The classes below show what I'm doing, the org.example.testapp.MySDKTest fails with the exception while the org.example.test.MySDKTest successfully passes. Sorry there is so much code but I can't reproduce the issue with a simplified case.
SDK source
package org.example.mysdk;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.example.mysdk.MyService;
import org.example.mysdk.MyServiceConfiguration;
public final class MySDK {
private static ApplicationContext applicationContext;
public static <T extends MyService> T getService(Class<? extends MyService> clazz, MyServiceConfiguration configuration) {
T tmp = (T) getApplicationContext().getBean(clazz);
tmp.setConfiguration(configuration);
return tmp;
}
private static ApplicationContext getApplicationContext() {
if (applicationContext == null) {
applicationContext = new AnnotationConfigApplicationContext(SpringContext.class);
}
return applicationContext;
}
}
.
package org.example.mysdk;
import org.springframework.beans.factory.annotation.Autowired;
public abstract class MyService {
private MyServiceConfiguration configuration;
#Autowired
private MyAutowiredService myAutowiredService;
MyService() {
}
MyService(MyServiceConfiguration configuration) {
super();
this.configuration = configuration;
}
public MyServiceConfiguration getConfiguration() {
return configuration;
}
void setConfiguration(MyServiceConfiguration configuration) {
this.configuration = configuration;
}
String getSomething(String in) {
return "something + " + myAutowiredService.getThing(configuration.getValue()) + " and " + in;
}
}
.
package org.example.mysdk;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Service;
#Service
#Scope("prototype")
public class MyServiceImpl1 extends MyService {
public MyServiceImpl1() {
}
public MyServiceImpl1(MyServiceConfiguration configuration) {
super(configuration);
}
public String method1() {
return this.getSomething("method1");
}
}
.
package org.example.mysdk;
public class MyServiceConfiguration {
private String value;
public void setValue(String value) {
this.value = value;
}
public String getValue() {
return value;
}
}
.
package org.example.mysdk;
import org.springframework.stereotype.Service;
import javax.annotation.PostConstruct;
#Service
public class MyAutowiredService {
private String thing = "a value";
public String getThing(String in) {
return thing + " " + in;
}
#PostConstruct
void init() {
System.out.println("MyAutowiredService bean created");
}
}
.
package org.example.mysdk;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
#Configuration
#ComponentScan(basePackages = {
"org.example.mysdk"
})
public class SpringContext {
}
Tests
This first test fails with a org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type exception,
package org.example.testapp;
import static org.junit.Assert.*;
import org.example.mysdk.MyServiceConfiguration;
import org.example.mysdk.MyServiceImpl1;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.support.AnnotationConfigContextLoader;
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration(classes = App.class, loader = AnnotationConfigContextLoader.class)
public class MySDKTest {
#Autowired
MyServiceImpl1 service;
#Test
public void test() {
MyServiceConfiguration conf = service.getConfiguration();
assertEquals(conf.getValue(), "this is the instance configuration");
}
}
.
package org.example.testapp;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.example.mysdk.MySDK;
import org.example.mysdk.MyServiceConfiguration;
import org.example.mysdk.MyServiceImpl1;
#Configuration
#ComponentScan(basePackages = {
"org.example.testapp"
})
public class App {
#Bean
public MyServiceImpl1 myServiceImpl1() {
MyServiceConfiguration configuration = new MyServiceConfiguration();
configuration.setValue("this is the instance configuration");
return MySDK.getService(MyServiceImpl1.class, configuration);
}
}
and this test succeeds,
package org.example.test;
import static org.junit.Assert.*;
import org.example.mysdk.MySDK;
import org.example.mysdk.MyServiceConfiguration;
import org.example.mysdk.MyServiceImpl1;
import org.junit.Test;
public class MySDKTest {
#Test
public void test() {
MyServiceConfiguration configuration = new MyServiceConfiguration();
configuration.setValue("this is the instance configuration");
MyServiceImpl1 service = MySDK.getService(MyServiceImpl1.class, configuration);
assertEquals(service.getConfiguration().getValue(), "this is the instance configuration");
}
}
If I've gone about this the completely wrong way I'm happy to hear suggestions of how this should be done differently!

You have to modify two files.
First App.java, it should scan for "org.example.mysdk" package to inject myAutowiredService in abstract class MyService, If not it has to be created in App.java. And the name of the MyServiceImpl1 bean must be different from myServiceImpl1 as it will conflict.
package org.example.testapp;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.example.mysdk.MySDK;
import org.example.mysdk.MyServiceConfiguration;
import org.example.mysdk.MyServiceImpl1;
#Configuration
#ComponentScan(basePackages = {
"org.example.testapp", "org.example.mysdk"
})
public class App {
#Bean
public MyServiceImpl1 myServiceImpl() {
MyServiceConfiguration configuration = new MyServiceConfiguration();
configuration.setValue("this is the instance configuration");
return MySDK.getService(MyServiceImpl1.class, configuration);
}
}
Then secondly in MySDKTest.java should inject myServiceImpl which was created in App.java
import static org.junit.Assert.*;
import org.example.mysdk.MyServiceConfiguration;
import org.example.mysdk.MyServiceImpl1;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.support.AnnotationConfigContextLoader;
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration(classes = App.class, loader = AnnotationConfigContextLoader.class)
public class MySDKTest {
#Autowired
MyServiceImpl1 myServiceImpl;
#Test
public void createOxiAccountService() {
MyServiceConfiguration conf = myServiceImpl.getConfiguration();
assertEquals(conf.getValue(), "this is the instance configuration");
}
}

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