club.zhcs.lina.starter.event.SpringEventAutoConfiguration Maven / Gradle / Ivy

Go to download
package club.zhcs.lina.starter.event;

import java.util.concurrent.ThreadPoolExecutor;

import org.springframework.boot.autoconfigure.AutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.event.SimpleApplicationEventMulticaster;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.core.task.TaskExecutor;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

/**
 * 
 * @author kerbores([email protected])
 *
 */
@EnableAsync
@AutoConfiguration
@EnableConfigurationProperties(SpringEventAutoConfigurationProperties.class)
@ConditionalOnExpression("${lina.event.async:true}")
public class SpringEventAutoConfiguration {

    @Bean(AbstractApplicationContext.APPLICATION_EVENT_MULTICASTER_BEAN_NAME)
    @ConditionalOnMissingBean
    SimpleApplicationEventMulticaster myEventMulticaster(TaskExecutor taskExecutor) {
        SimpleApplicationEventMulticaster simpleApplicationEventMulticaster = new SimpleApplicationEventMulticaster();
        simpleApplicationEventMulticaster.setTaskExecutor(taskExecutor);
        return simpleApplicationEventMulticaster;
    }

    @Bean
    @ConditionalOnMissingBean
    TaskExecutor taskExecutor(SpringEventAutoConfigurationProperties config) {
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(config.getCorePoolSize());
        executor.setMaxPoolSize(config.getMaxPoolSize());
        executor.setQueueCapacity(config.getQueueCapacity());
        executor.setKeepAliveSeconds(config.getKeepAliveSeconds());
        executor.setThreadNamePrefix("thread-");
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.DiscardPolicy());
        executor.setWaitForTasksToCompleteOnShutdown(true);
        executor.initialize();
        return executor;
    }
}