package com.java110.event.service;
|
|
import com.java110.utils.constant.CommonConstant;
|
import com.java110.utils.constant.ResponseConstant;
|
import com.java110.utils.exception.BusinessException;
|
import com.java110.utils.factory.ApplicationContextFactory;
|
import com.java110.utils.log.LoggerEngine;
|
import com.java110.utils.util.Assert;
|
import com.java110.core.context.DataFlowContext;
|
import com.java110.event.center.DataFlowListenerOrderComparator;
|
|
import java.util.ArrayList;
|
import java.util.HashMap;
|
import java.util.List;
|
import java.util.Map;
|
import java.util.concurrent.Executor;
|
import java.util.concurrent.Executors;
|
|
/**
|
* 数据流 事件发布
|
* Created by wuxw on 2018/4/17.
|
*/
|
public class BusinessServiceDataFlowEventPublishing extends LoggerEngine {
|
|
private static Executor taskExecutor;
|
|
//默认 线程数 100
|
private final static int DEFAULT_THREAD_NUM = 100;
|
|
/**
|
* 保存侦听实例信息，一般启动时加载
|
*/
|
private final static List<String> listeners = new ArrayList<String>();
|
|
/**
|
* 根据 事件类型查询侦听
|
*/
|
private final static Map<String,List<BusinessServiceDataFlowListener>> cacheListenersMap = new HashMap<String, List<BusinessServiceDataFlowListener>>();
|
|
/**
|
* 添加 侦听，这个只有启动时，单线程 处理，所以是线程安全的
|
* @param listener
|
*/
|
public static void addListener(String listener){
|
listeners.add(listener);
|
}
|
|
/**
|
* 获取侦听（全部侦听）
|
* @return
|
*/
|
public static List<String> getListeners(){
|
return listeners;
|
}
|
|
/**
|
* 根据是否实现了某个接口，返回侦听
|
* @param businessTypeCd
|
* @since 1.8
|
* @return
|
*/
|
public static List<BusinessServiceDataFlowListener> getListeners(String businessTypeCd){
|
|
Assert.hasLength(businessTypeCd,"获取需要发布的事件处理侦听时，传递事件为空，请检查");
|
|
//先从缓存中获取，为了提升效率
|
if(cacheListenersMap.containsKey(businessTypeCd)){
|
return cacheListenersMap.get(businessTypeCd);
|
}
|
|
List<BusinessServiceDataFlowListener> dataFlowListeners = new ArrayList<BusinessServiceDataFlowListener>();
|
for(String listenerBeanName : getListeners()){
|
BusinessServiceDataFlowListener listener = ApplicationContextFactory.getBean(listenerBeanName,BusinessServiceDataFlowListener.class);
|
if(businessTypeCd.equals(listener.getBusinessTypeCd())){
|
dataFlowListeners.add(listener);
|
}
|
}
|
|
//这里排序
|
DataFlowListenerOrderComparator.sort(dataFlowListeners);
|
|
//将数据放入缓存中
|
cacheListenersMap.put(businessTypeCd,dataFlowListeners);
|
return dataFlowListeners;
|
}
|
|
|
/**
|
* 发布事件
|
* @param dataFlowContext
|
*/
|
public static void multicastEvent(DataFlowContext dataFlowContext) throws BusinessException{
|
Assert.notNull(dataFlowContext.getCurrentBusiness(),"当前没有可处理的业务信息！");
|
multicastEvent(dataFlowContext.getCurrentBusiness().getBusinessTypeCd(),dataFlowContext,null);
|
}
|
|
|
/**
|
* 发布事件
|
* @param businessTypeCd
|
* @param dataFlowContext
|
*/
|
public static void multicastEvent(String businessTypeCd,DataFlowContext dataFlowContext) throws BusinessException{
|
multicastEvent(businessTypeCd,dataFlowContext,null);
|
}
|
|
/**
|
* 发布事件
|
* @param businessTypeCd
|
* @param dataFlowContext 这个订单信息，以便于 侦听那边需要用
|
*/
|
public static void multicastEvent(String businessTypeCd,DataFlowContext dataFlowContext,String asyn) throws BusinessException{
|
try {
|
BusinessServiceDataFlowEvent targetDataFlowEvent = new BusinessServiceDataFlowEvent(businessTypeCd,dataFlowContext);
|
|
multicastEvent(businessTypeCd,targetDataFlowEvent, asyn);
|
}catch (Exception e){
|
throw new BusinessException(ResponseConstant.RESULT_CODE_INNER_ERROR,"发布侦听失败，失败原因为："+e);
|
}
|
|
}
|
|
|
/**
|
* 发布事件
|
* @param event
|
* @param asyn A 表示异步处理
|
*/
|
public static void multicastEvent(String businessTypeCd,final BusinessServiceDataFlowEvent event, String asyn) {
|
for (final BusinessServiceDataFlowListener listener : getListeners(businessTypeCd)) {
|
|
if(CommonConstant.PROCESS_ORDER_ASYNCHRONOUS.equals(asyn)){ //异步处理
|
|
Executor executor = getTaskExecutor();
|
executor.execute(new Runnable() {
|
@Override
|
public void run() {
|
invokeListener(listener, event);
|
}
|
});
|
|
}
|
else {
|
invokeListener(listener, event);
|
}
|
}
|
}
|
|
/**
|
* Return the current task executor for this multicaster.
|
*/
|
protected static synchronized Executor getTaskExecutor() {
|
if(taskExecutor == null) {
|
taskExecutor = Executors.newFixedThreadPool(DEFAULT_THREAD_NUM);
|
}
|
return taskExecutor;
|
}
|
|
/**
|
* Invoke the given listener with the given event.
|
* @param listener the ApplicationListener to invoke
|
* @param event the current event to propagate
|
* @since 4.1
|
*/
|
@SuppressWarnings({"unchecked", "rawtypes"})
|
protected static void invokeListener(BusinessServiceDataFlowListener listener, BusinessServiceDataFlowEvent event) {
|
try {
|
listener.soService(event);
|
}catch (Exception e){
|
LoggerEngine.error("发布侦听失败",e);
|
throw new RuntimeException("发布侦听失败,"+listener+ event + e);
|
}
|
}
|
}
|
