package com.vci.ubcs.flow.engine.envent;
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import com.vci.ubcs.flow.core.dto.FlowStatusDTO;
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import com.vci.ubcs.flow.engine.constant.FlowEngineConstant;
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import com.vci.ubcs.flow.engine.utils.FlowableUtils;
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import com.vci.ubcs.starter.exception.VciBaseException;
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import com.vci.ubcs.starter.web.util.LangBaseUtil;
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import com.vci.ubcs.starter.web.util.VciBaseUtil;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.commons.lang3.StringUtils;
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import org.flowable.engine.HistoryService;
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import org.flowable.engine.TaskService;
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import org.flowable.engine.delegate.DelegateExecution;
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import org.flowable.engine.delegate.ExecutionListener;
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import org.flowable.engine.impl.el.FixedValue;
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import org.springblade.core.jwt.JwtUtil;
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import org.springblade.core.launch.constant.TokenConstant;
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import org.springblade.core.tool.utils.WebUtil;
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import org.springframework.beans.BeansException;
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import org.springframework.context.ApplicationContext;
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import org.springframework.context.ApplicationContextAware;
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import org.springframework.http.HttpEntity;
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import org.springframework.http.HttpHeaders;
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import org.springframework.http.MediaType;
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import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
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import org.springframework.stereotype.Component;
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import org.springframework.util.CollectionUtils;
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import org.springframework.web.client.HttpClientErrorException;
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import org.springframework.web.client.RestTemplate;
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import java.util.List;
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import java.util.Map;
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@Slf4j
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@Component
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public class FlowExecutionEndListener implements ExecutionListener, ApplicationContextAware {
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/**
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* 远程调用地址。切记：名称要与流程中定义的一样
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*/
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private FixedValue remoteMethod;
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/**
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* 状态值。切记：名称要与流程中定义的一样
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*/
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private FixedValue statusValue;
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private static ApplicationContext applicationContext;
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@Override
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public void setApplicationContext(ApplicationContext arg0) throws BeansException {
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applicationContext = arg0;
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}
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@Override
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public void notify(DelegateExecution execution) {
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Map variables = execution.getVariables();
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String restURL = remoteMethod.getExpressionText();
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String status = statusValue.getExpressionText();
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//获取业务数据信息
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List<String> oids = (List<String>) variables.get(FlowEngineConstant.OIDS);
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String btmType = (String) variables.get(FlowEngineConstant.BTMTYPE);
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variables.put(FlowEngineConstant.REMOTE_METHOD,restURL);
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variables.put(FlowEngineConstant.STATUS_VALUE,status);
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if(CollectionUtils.isEmpty(oids)){
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throw new VciBaseException("执行状态修改事件时，业务数据oid为空！");
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}
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if(StringUtils.isEmpty(btmType)){
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throw new VciBaseException("执行状态修改事件时，业务类型btmType为空！");
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}
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if(StringUtils.isEmpty(restURL)){
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throw new VciBaseException("执行状态修改事件时，远程调用地址为空！");
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}
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if(StringUtils.isEmpty(status)){
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throw new VciBaseException("执行状态修改事件时，状态为空！");
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}
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HistoryService historyService = applicationContext.getBean(HistoryService.class);
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TaskService taskService = applicationContext.getBean(TaskService.class);
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FlowStatusDTO flowStatusDTO = new FlowStatusDTO();
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flowStatusDTO.setBtmType(btmType);
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flowStatusDTO.setOids(oids);
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flowStatusDTO.setVariableMap(variables);
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flowStatusDTO.setTaskHisVOList(FlowableUtils.listTaskHistory(execution.getProcessInstanceId(),historyService,taskService));
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String token = JwtUtil.getToken(WebUtil.getRequest().getHeader(TokenConstant.HEADER));
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HttpComponentsClientHttpRequestFactory requestFactory=new HttpComponentsClientHttpRequestFactory();
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requestFactory.setReadTimeout(300000);
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requestFactory.setConnectionRequestTimeout(300000);
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requestFactory.setConnectTimeout(300000);
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RestTemplate restTemplate = new RestTemplate(requestFactory);
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HttpHeaders headers = new HttpHeaders();
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headers.add(TokenConstant.HEADER,token);
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headers.setContentType(MediaType.APPLICATION_JSON);
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HttpEntity httpEntity = new HttpEntity<>(flowStatusDTO,headers);
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Map<String, Object> result = null;
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try {
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result = restTemplate.postForObject(restURL, httpEntity, Map.class);
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} catch (HttpClientErrorException e) {
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throw new VciBaseException(LangBaseUtil.getErrorMsg(e),new String[]{},e);
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}catch (Throwable e){
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throw new VciBaseException(LangBaseUtil.getErrorMsg(e),new String[]{},e);
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}
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if(result == null){
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throw new VciBaseException("业务事件时候没有返回值，不确定是否执行成功");
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}
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if(CollectionUtils.isEmpty(result) && !(Boolean) result.get("success")){
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throw new VciBaseException((String) result.get("message"));
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}
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}
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}
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