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@ -3,15 +3,18 @@ package com.yihu.hos.services;
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import com.yihu.ehr.framework.model.Result;
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import com.yihu.ehr.framework.util.operator.ClassFileUtil;
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import com.yihu.ehr.framework.util.operator.StringUtil;
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import com.yihu.hos.models.CamelContextQueue;
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import com.yihu.hos.models.SystemPathMapping;
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import com.yihu.hos.common.classLoader.DynamicClassLoader;
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import com.yihu.hos.common.constants.Constant;
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import com.yihu.hos.models.SystemCamelContext;
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import com.yihu.hos.models.SystemClassMapping;
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import org.apache.camel.builder.RouteBuilder;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import org.springframework.stereotype.Service;
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import java.net.URL;
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import java.io.File;
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import java.net.MalformedURLException;
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import java.util.Map;
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import java.util.concurrent.SynchronousQueue;
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/**
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* Created by lingfeng on 2016/8/4.
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@ -28,138 +31,167 @@ public class ESBCamelService {
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* @param path processor处理器定义涉及的class对应路径
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*/
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public Result onProcessorAdded(String serviceFlow, String packageName, String className, String path) {
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/*
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* 当一个处理器进行添加时,要做以下处理
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* 1、首先根据serviceFlow的信息,在ESB-Broker Server的映射容器中寻
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* 找个业务系统定义的各种Server Class 文件在ESB-Broker Server节点本地存储的根路径
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* 2、然后按照packageName、className、contents的信息将这个class文件写入到正确的位置
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*
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* 注意:由于此时只是完成了class了文件的写入,所以这个class文件还没有被classloader进行初始化。
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* 另外由于,CamelContext并没有提供单独进行processor处理器加载的功能,而是随着routes实例的加载而加载
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* 而这个工作将在onRouteDefineChanged事件中完成,所以在完成processor-class文件的写入后,就不需要再做其它事情了。
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* */
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if(StringUtil.isEmpty(serviceFlow) || StringUtil.isEmpty(packageName)
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|| StringUtil.isEmpty(className) || StringUtil.isEmpty(path)) {
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logger.error("必要的入参数据不正确,请检查!");
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return Result.error("必要的入参数据不正确,请检查!");
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try {
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if(StringUtil.isEmpty(serviceFlow) || StringUtil.isEmpty(packageName)
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|| StringUtil.isEmpty(className) || StringUtil.isEmpty(path)) {
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logger.error("必要的入参数据不正确,请检查!");
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return Result.error("必要的入参数据不正确,请检查!");
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}
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this.createClassfile(serviceFlow, packageName, className, path, Constant.PROCESSOR);
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return Result.success("新增处理器成功!");
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} catch (Exception e) {
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logger.error(e);
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return Result.error("新增处理器失败!");
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}
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this.createClassfile(serviceFlow, packageName, className, path);
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return Result.success("新增处理器成功!");
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}
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/**
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* 当外界组件通知一个已有的processor处理器data部分发生变化时,该事件被触发。
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*/
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public Result onProcessorDataChanged(String serviceFlow , String packageName , String className , String path) {
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if(StringUtil.isEmpty(serviceFlow) || StringUtil.isEmpty(packageName)
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|| StringUtil.isEmpty(className) || StringUtil.isEmpty(path)) {
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logger.error("必要的入参数据不正确,请检查!");
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return Result.error("必要的入参数据不正确,请检查!");
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try {
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if(StringUtil.isEmpty(serviceFlow) || StringUtil.isEmpty(packageName)
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|| StringUtil.isEmpty(className) || StringUtil.isEmpty(path)) {
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logger.error("必要的入参数据不正确,请检查!");
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return Result.error("必要的入参数据不正确,请检查!");
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}
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this.updateClassfile(serviceFlow, packageName, className, path, Constant.PROCESSOR);
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SystemCamelContext.getDefaultCamelContext().stopRoute(serviceFlow);
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SystemCamelContext.getDefaultCamelContext().removeRoute(serviceFlow);
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DynamicClassLoader classLoader = new DynamicClassLoader(DynamicClassLoader.class.getClassLoader());
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Class<RouteBuilder> routeBuilderClass = (Class<RouteBuilder>) classLoader.loadClass(ClassLoader.getSystemResource(Constant.EMPTY).getPath(), SystemClassMapping.getSystemClassNameMapping().get(serviceFlow + Constant.ROUTE));
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classLoader.loadClass(ClassLoader.getSystemResource(Constant.EMPTY).getPath(), SystemClassMapping.getSystemClassNameMapping().get(serviceFlow + Constant.PROCESSOR));
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if (routeBuilderClass != null) {
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RouteBuilder routeBuilder = routeBuilderClass.newInstance();
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SystemCamelContext.getDefaultCamelContext().addRoutes(routeBuilder);
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}
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return Result.success("修改处理器成功!");
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} catch (Exception e) {
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logger.error(e);
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return Result.error("修改路由失败!");
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}
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this.updateClassfile(serviceFlow, packageName, className, path);
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return Result.success("修改处理器成功!");
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}
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/**
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* 当外界组件通知一个新的RouteDefine路由被定义时,该事件被触发
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*/
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public Result onRouteDefineAdded(String serviceFlow , String packageName , String className , String path) {
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/*
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* 当一个新的路由定义事件发生时,要做以下几件事情:
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*
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* 1、根据serviceFlow的信息,在ESB-Broker Server的映射容器中寻
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* 找个业务系统定义的各种Server Class 文件在ESB-Broker Server节点本地存储的根路径
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* 2、然后按照packageName、className、contents的信息将这个class文件写入到正确的位置
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* 3、不能在本线程操作Apache Camel,只能通过一个同步队列通知Apache Camel主线程
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* */
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if(StringUtil.isEmpty(serviceFlow) || StringUtil.isEmpty(packageName)
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|| StringUtil.isEmpty(className) || StringUtil.isEmpty(path)) {
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logger.error("必要的入参数据不正确,请检查!");
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return Result.error("必要的入参数据不正确,请检查!");
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}
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// 第1、2两步处理过程,都是在这里完成
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this.createClassfile(serviceFlow, packageName, className, path);
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// 3、===============加载到CamelContext中
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SynchronousQueue<String> camelContextOperateQueue = CamelContextQueue.getCamelCamelContextQueue();
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try {
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camelContextOperateQueue.put(packageName + "." + className);
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} catch (InterruptedException e) {
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logger.error(e.getMessage() , e);
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if(StringUtil.isEmpty(serviceFlow) || StringUtil.isEmpty(packageName)
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|| StringUtil.isEmpty(className) || StringUtil.isEmpty(path)) {
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logger.error("必要的入参数据不正确,请检查!");
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return Result.error("必要的入参数据不正确,请检查!");
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}
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File systemClassRootPath = new File(ClassLoader.getSystemResource("").getPath() + "/" + serviceFlow);
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if (!systemClassRootPath.exists()) {
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systemClassRootPath.mkdirs();
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}
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// 第1、2两步处理过程,都是在这里完成
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this.createClassfile(serviceFlow, packageName, className, path, Constant.ROUTE);
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// 3、===============加载到CamelContext中
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ClassLoader currentClassLoader = Thread.currentThread().getContextClassLoader();
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Class<RouteBuilder> routeBuilderClass = (Class<RouteBuilder>) currentClassLoader.loadClass(SystemClassMapping.getSystemClassNameMapping().get(serviceFlow + Constant.ROUTE));
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if(routeBuilderClass != null) {
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RouteBuilder routeBuilder = routeBuilderClass.newInstance();
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SystemCamelContext.getDefaultCamelContext().addRoutes(routeBuilder);
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}
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return Result.success("新增路由成功!");
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} catch (Exception e) {
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logger.error(e);
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return Result.error("新增路由失败!");
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}
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return Result.success("新增路由成功!");
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}
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/**
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* 当外界组件通知一个已有的RouteDefine路由定义被改变时,主要就是路由定义内容被改变时,该事件被触发。
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*/
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public Result onRouteDefineChanged(String serviceFlow, String packageName, String className, String path) {
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if(StringUtil.isEmpty(serviceFlow) || StringUtil.isEmpty(packageName)
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|| StringUtil.isEmpty(className) || StringUtil.isEmpty(path)) {
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logger.error("必要的入参数据不正确,请检查!");
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return Result.error("必要的入参数据不正确,请检查!");
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try {
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if (StringUtil.isEmpty(serviceFlow) || StringUtil.isEmpty(packageName)
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|| StringUtil.isEmpty(className) || StringUtil.isEmpty(path)) {
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logger.error("必要的入参数据不正确,请检查!");
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return Result.error("必要的入参数据不正确,请检查!");
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}
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SystemCamelContext.getDefaultCamelContext().stopRoute(serviceFlow);
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SystemCamelContext.getDefaultCamelContext().removeRoute(serviceFlow);
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this.updateClassfile(serviceFlow, packageName, className, path, Constant.ROUTE);
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// 3、===============加载到CamelContext中
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DynamicClassLoader classLoader = new DynamicClassLoader(DynamicClassLoader.class.getClassLoader());
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Class<RouteBuilder> routeBuilderClass = (Class<RouteBuilder>) classLoader.loadClass(ClassLoader.getSystemResource(Constant.EMPTY).getPath(), SystemClassMapping.getSystemClassNameMapping().get(serviceFlow + Constant.ROUTE));
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if (routeBuilderClass != null) {
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RouteBuilder routeBuilder = routeBuilderClass.newInstance();
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SystemCamelContext.getDefaultCamelContext().addRoutes(routeBuilder);
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}
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return Result.success("修改路由成功!");
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} catch (Exception e) {
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return Result.error("修改路由失败!");
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}
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this.updateClassfile(serviceFlow, packageName, className, path);
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return Result.success("修改路由成功!");
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}
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/**
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* 当外界组件通知一个已有的RouteDefine路由定义被删除时,该事件被触发。
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*/
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public Result onRouteDefineDelete(String serviceFlow, String packageName, String className) {
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if(StringUtil.isEmpty(serviceFlow) || StringUtil.isEmpty(packageName)
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|| StringUtil.isEmpty(className)) {
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logger.error("必要的入参数据不正确,请检查!");
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return Result.error("必要的入参数据不正确,请检查!");
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try {
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if(StringUtil.isEmpty(serviceFlow) || StringUtil.isEmpty(packageName)
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|| StringUtil.isEmpty(className)) {
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logger.error("必要的入参数据不正确,请检查!");
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return Result.error("必要的入参数据不正确,请检查!");
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}
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SystemCamelContext.getDefaultCamelContext().stopRoute(serviceFlow);
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SystemCamelContext.getDefaultCamelContext().removeRoute(serviceFlow);
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this.deleteClassfile(serviceFlow, packageName, className, Constant.PROCESSOR);
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return Result.success("删除路由成功!");
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} catch (Exception e) {
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return Result.error("删除路由失败!");
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}
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this.deleteClassfile(serviceFlow, packageName, className);
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return Result.success("删除路由成功!");
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}
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private void createClassfile(String serviceFlow, String packageName, String className, String path) {
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private void createClassfile(String serviceFlow, String packageName, String className, String path, String type) throws MalformedURLException {
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// 1、============
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Map<String, URL> systemPathMapping = SystemPathMapping.getSystemRootPathMapping();
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URL systemRootURL = systemPathMapping.get(serviceFlow);
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if(systemRootURL == null) {
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return;
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}
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File systemClassFlowPath = new File(ClassLoader.getSystemResource(Constant.EMPTY).getPath() + "/" + serviceFlow);
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// 记录到工具类中,以便其它线程需要时进行取用
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SystemClassMapping.getSystemClassNameMapping().put(serviceFlow + Constant.ROUTE, serviceFlow + Constant.DOT + packageName + Constant.DOT + className);
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// 2、============开始写入class文件
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ClassFileUtil.createClassfile(systemRootURL, packageName, className, path);
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ClassFileUtil.createClassfile(systemClassFlowPath.toURI().toURL(), packageName, className, path);
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// 完成
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logger.info("===================" + packageName + "." + className + ".class 生成过程结束");
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logger.info("===================" + packageName + Constant.DOT + className + ".class 生成过程结束");
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}
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private void updateClassfile(String serviceFlow, String packageName, String className, String path) {
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private void updateClassfile(String serviceFlow, String packageName, String className, String path, String type) {
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// 1、============
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Map<String, URL> systemPathMapping = SystemPathMapping.getSystemRootPathMapping();
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URL systemRootURL = systemPathMapping.get(serviceFlow);
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if(systemRootURL == null) {
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Map<String, String> systemClassNameMapping = SystemClassMapping.getSystemClassNameMapping();
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String systemClassName = systemClassNameMapping.get(serviceFlow + type);
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if(StringUtil.isEmpty(systemClassName)) {
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return;
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}
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String classPath = ClassLoader.getSystemResource("").getPath() + "/" + serviceFlow + "/" + packageName + "/" + className + ".class";
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// 2、============开始写入class文件
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ClassFileUtil.updateClassfile(systemRootURL, packageName, className, path);
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ClassFileUtil.updateClassfile(classPath, path);
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// 完成
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logger.info("===================" + packageName + "." + className + ".class 修改过程结束");
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logger.info("===================" + packageName + Constant.DOT + className + ".class 修改过程结束");
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}
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private void deleteClassfile(String serviceFlow, String packageName, String className) {
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private void deleteClassfile(String serviceFlow, String packageName, String className, String type) {
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// 1、============
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Map<String, URL> systemPathMapping = SystemPathMapping.getSystemRootPathMapping();
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URL systemRootURL = systemPathMapping.get(serviceFlow);
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if(systemRootURL == null) {
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Map<String, String> systemClassNameMapping = SystemClassMapping.getSystemClassNameMapping();
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String systemClassName = systemClassNameMapping.get(serviceFlow + type);
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if(StringUtil.isEmpty(systemClassName)) {
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return;
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}
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String classPath = ClassLoader.getSystemResource("").getPath() + "/" + serviceFlow + "/" + packageName + "/" + className + ".class";
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// 2、============开始写入class文件
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ClassFileUtil.deleteClassfile(systemRootURL, packageName, className);
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ClassFileUtil.deleteClassfile(classPath);
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// 完成
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logger.info("===================" + packageName + "." + className + ".class 删除过程结束");
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logger.info("===================" + packageName + Constant.DOT + className + ".class 删除过程结束");
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}
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}
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