spring-security/samples/javaconfig/chat/src/main/java/sample/config/EmbeddedRedisConfig.java

103 lines
3.4 KiB
Java

/*
* Copyright 2002-2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package sample.config;
/*
* Copyright 2002-2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import java.io.IOException;
import java.net.ServerSocket;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.beans.factory.support.BeanDefinitionRegistryPostProcessor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import redis.embedded.RedisServer;
/**
* Runs an embedded Redis instance. This is only necessary since we do not want users to
* have to setup a Redis instance. In a production environment, this would not be used
* since a Redis Server would be setup.
*
* @author Rob Winch
*/
@Configuration
public class EmbeddedRedisConfig {
@Bean
public static RedisServerBean redisServer() {
return new RedisServerBean();
}
/**
* Implements BeanDefinitionRegistryPostProcessor to ensure this Bean is initialized
* before any other Beans. Specifically, we want to ensure that the Redis Server is
* started before RedisHttpSessionConfiguration attempts to enable Keyspace
* notifications.
*/
static class RedisServerBean implements InitializingBean, DisposableBean,
BeanDefinitionRegistryPostProcessor, RedisConnectionProperties {
private RedisServer redisServer;
public void afterPropertiesSet() throws Exception {
redisServer = new RedisServer(getPort());
redisServer.start();
}
public void destroy() throws Exception {
if (redisServer != null) {
redisServer.stop();
}
}
public void postProcessBeanDefinitionRegistry(BeanDefinitionRegistry registry)
throws BeansException {
}
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory)
throws BeansException {
}
private Integer availablePort;
public int getPort() throws IOException {
if (availablePort == null) {
ServerSocket socket = new ServerSocket(0);
availablePort = socket.getLocalPort();
socket.close();
}
return availablePort;
}
}
}