package com.iailab.module.bpm.service.task; import cn.hutool.core.collection.CollUtil; import cn.hutool.core.collection.ListUtil; import cn.hutool.core.lang.Assert; import cn.hutool.core.util.ArrayUtil; import cn.hutool.core.util.ObjectUtil; import cn.hutool.core.util.StrUtil; import com.iailab.framework.common.pojo.PageResult; import com.iailab.framework.common.util.date.DateUtils; import com.iailab.framework.common.util.json.JsonUtils; import com.iailab.framework.common.util.object.ObjectUtils; import com.iailab.framework.common.util.object.PageUtils; import com.iailab.module.bpm.api.task.dto.BpmProcessInstanceCreateReqDTO; import com.iailab.module.bpm.controller.admin.definition.vo.model.simple.BpmSimpleModelNodeVO; import com.iailab.module.bpm.controller.admin.task.vo.instance.*; import com.iailab.module.bpm.controller.admin.task.vo.task.BpmTaskRespVO; import com.iailab.module.bpm.convert.task.BpmProcessInstanceConvert; import com.iailab.module.bpm.dal.dataobject.definition.BpmProcessDefinitionInfoDO; import com.iailab.module.bpm.enums.ErrorCodeConstants; import com.iailab.module.bpm.enums.definition.BpmModelTypeEnum; import com.iailab.module.bpm.enums.definition.BpmSimpleModelNodeType; import com.iailab.module.bpm.enums.task.BpmProcessInstanceStatusEnum; import com.iailab.module.bpm.enums.task.BpmReasonEnum; import com.iailab.module.bpm.enums.task.BpmTaskStatusEnum; import com.iailab.module.bpm.framework.flowable.core.candidate.BpmTaskCandidateInvoker; import com.iailab.module.bpm.framework.flowable.core.candidate.strategy.dept.BpmTaskCandidateStartUserSelectStrategy; import com.iailab.module.bpm.framework.flowable.core.enums.BpmnModelConstants; import com.iailab.module.bpm.framework.flowable.core.enums.BpmnVariableConstants; import com.iailab.module.bpm.framework.flowable.core.event.BpmProcessInstanceEventPublisher; import com.iailab.module.bpm.framework.flowable.core.util.BpmnModelUtils; import com.iailab.module.bpm.framework.flowable.core.util.FlowableUtils; import com.iailab.module.bpm.framework.flowable.core.util.SimpleModelUtils; import com.iailab.module.bpm.service.definition.BpmProcessDefinitionService; import com.iailab.module.bpm.service.message.BpmMessageService; import com.iailab.module.system.api.dept.DeptApi; import com.iailab.module.system.api.dept.dto.DeptRespDTO; import com.iailab.module.system.api.user.AdminUserApi; import com.iailab.module.system.api.user.dto.AdminUserRespDTO; import lombok.extern.slf4j.Slf4j; import org.flowable.bpmn.constants.BpmnXMLConstants; import org.flowable.bpmn.model.*; import org.flowable.engine.HistoryService; import org.flowable.engine.RuntimeService; import org.flowable.engine.history.HistoricActivityInstance; import org.flowable.engine.history.HistoricProcessInstance; import org.flowable.engine.history.HistoricProcessInstanceQuery; import org.flowable.engine.repository.ProcessDefinition; import org.flowable.engine.runtime.ProcessInstance; import org.flowable.task.api.history.HistoricTaskInstance; import org.springframework.context.annotation.Lazy; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import org.springframework.validation.annotation.Validated; import javax.annotation.Resource; import javax.validation.Valid; import java.util.*; import static com.iailab.framework.common.exception.util.ServiceExceptionUtil.exception; import static com.iailab.framework.common.util.collection.CollectionUtils.*; import static com.iailab.module.bpm.controller.admin.task.vo.instance.BpmApprovalDetailRespVO.ActivityNode; import static com.iailab.module.bpm.controller.admin.task.vo.instance.BpmApprovalDetailRespVO.ActivityNodeTask; import static com.iailab.module.bpm.enums.ErrorCodeConstants.*; import static com.iailab.module.bpm.framework.flowable.core.enums.BpmnModelConstants.START_USER_NODE_ID; import static java.util.Arrays.asList; import static java.util.Collections.singletonList; import static org.flowable.bpmn.constants.BpmnXMLConstants.*; /** * 流程实例 Service 实现类 * <p> * ProcessDefinition & ProcessInstance & Execution & Task 的关系： * 1. <a href="https://blog.csdn.net/bobozai86/article/details/105210414" /> * <p> * HistoricProcessInstance & ProcessInstance 的关系： * 1. <a href=" https://my.oschina.net/843294669/blog/71902" /> * <p> * 简单来说，前者 = 历史 + 运行中的流程实例，后者仅是运行中的流程实例 * * @author 芋道源码 */ @Service @Validated @Slf4j public class BpmProcessInstanceServiceImpl implements BpmProcessInstanceService { @Resource private RuntimeService runtimeService; @Resource private HistoryService historyService; @Resource private BpmProcessDefinitionService processDefinitionService; @Resource @Lazy // 避免循环依赖 private BpmTaskService taskService; @Resource private BpmMessageService messageService; @Resource private AdminUserApi adminUserApi; @Resource private DeptApi deptApi; @Resource private BpmProcessInstanceEventPublisher processInstanceEventPublisher; @Resource private BpmTaskCandidateInvoker taskCandidateInvoker; // ========== Query 查询相关方法 ========== @Override public ProcessInstance getProcessInstance(String id) { return runtimeService.createProcessInstanceQuery() .includeProcessVariables() .processInstanceId(id) .singleResult(); } @Override public List<ProcessInstance> getProcessInstances(Set<String> ids) { return runtimeService.createProcessInstanceQuery().processInstanceIds(ids).list(); } @Override public HistoricProcessInstance getHistoricProcessInstance(String id) { return historyService.createHistoricProcessInstanceQuery().processInstanceId(id).includeProcessVariables().singleResult(); } @Override public List<HistoricProcessInstance> getHistoricProcessInstances(Set<String> ids) { return historyService.createHistoricProcessInstanceQuery().processInstanceIds(ids).list(); } @Override public PageResult<HistoricProcessInstance> getProcessInstancePage(Long userId, BpmProcessInstancePageReqVO pageReqVO) { // 通过 BpmProcessInstanceExtDO 表，先查询到对应的分页 HistoricProcessInstanceQuery processInstanceQuery = historyService.createHistoricProcessInstanceQuery() .includeProcessVariables() .processInstanceTenantId(FlowableUtils.getTenantId()) .orderByProcessInstanceStartTime().desc(); if (userId != null) { // 【我的流程】菜单时，需要传递该字段 processInstanceQuery.startedBy(String.valueOf(userId)); } else if (pageReqVO.getStartUserId() != null) { // 【管理流程】菜单时，才会传递该字段 processInstanceQuery.startedBy(String.valueOf(pageReqVO.getStartUserId())); } if (StrUtil.isNotEmpty(pageReqVO.getName())) { processInstanceQuery.processInstanceNameLike("%" + pageReqVO.getName() + "%"); } if (StrUtil.isNotEmpty(pageReqVO.getProcessDefinitionKey())) { processInstanceQuery.processDefinitionKey(pageReqVO.getProcessDefinitionKey()); } if (StrUtil.isNotEmpty(pageReqVO.getCategory())) { processInstanceQuery.processDefinitionCategory(pageReqVO.getCategory()); } if (pageReqVO.getStatus() != null) { processInstanceQuery.variableValueEquals(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS, pageReqVO.getStatus()); } if (ArrayUtil.isNotEmpty(pageReqVO.getCreateTime())) { processInstanceQuery.startedAfter(DateUtils.of(pageReqVO.getCreateTime()[0])); processInstanceQuery.startedBefore(DateUtils.of(pageReqVO.getCreateTime()[1])); } // 查询数量 long processInstanceCount = processInstanceQuery.count(); if (processInstanceCount == 0) { return PageResult.empty(processInstanceCount); } // 查询列表 List<HistoricProcessInstance> processInstanceList = processInstanceQuery.listPage(PageUtils.getStart(pageReqVO), pageReqVO.getPageSize()); return new PageResult<>(processInstanceList, processInstanceCount); } private Map<String, String> getFormFieldsPermission(BpmnModel bpmnModel, String activityId, String taskId) { // 1. 获取流程活动编号。流程活动 Id 为空事，从流程任务中获取流程活动 Id if (StrUtil.isEmpty(activityId) && StrUtil.isNotEmpty(taskId)) { activityId = Optional.ofNullable(taskService.getHistoricTask(taskId)) .map(HistoricTaskInstance::getTaskDefinitionKey).orElse(null); } if (StrUtil.isEmpty(activityId)) { return null; } // 2. 从 BpmnModel 中解析表单字段权限 return BpmnModelUtils.parseFormFieldsPermission(bpmnModel, activityId); } @Override public BpmApprovalDetailRespVO getApprovalDetail(Long loginUserId, BpmApprovalDetailReqVO reqVO) { // 1.1 从 reqVO 中，读取公共变量 Long startUserId = loginUserId; // 流程发起人 HistoricProcessInstance historicProcessInstance = null; // 流程实例 Integer processInstanceStatus = BpmProcessInstanceStatusEnum.NOT_START.getStatus(); // 流程状态 Map<String, Object> processVariables = reqVO.getProcessVariables(); // 流程变量 // 1.2 如果是流程已发起的场景，则使用流程实例的数据 if (reqVO.getProcessInstanceId() != null) { historicProcessInstance = getHistoricProcessInstance(reqVO.getProcessInstanceId()); if (historicProcessInstance == null) { throw exception(ErrorCodeConstants.PROCESS_INSTANCE_NOT_EXISTS); } startUserId = Long.valueOf(historicProcessInstance.getStartUserId()); processInstanceStatus = FlowableUtils.getProcessInstanceStatus(historicProcessInstance); processVariables = historicProcessInstance.getProcessVariables(); } // 1.3 读取其它相关数据 ProcessDefinition processDefinition = processDefinitionService.getProcessDefinition( historicProcessInstance != null ? historicProcessInstance.getProcessDefinitionId() : reqVO.getProcessDefinitionId()); BpmProcessDefinitionInfoDO processDefinitionInfo = processDefinitionService.getProcessDefinitionInfo(processDefinition.getId()); BpmnModel bpmnModel = processDefinitionService.getProcessDefinitionBpmnModel(processDefinition.getId()); // 2.1 已结束 + 进行中的活动节点 List<ActivityNode> endActivityNodes = null; // 已结束的审批信息 List<ActivityNode> runActivityNodes = null; // 进行中的审批信息 List<HistoricActivityInstance> activities = null; // 流程实例列表 if (reqVO.getProcessInstanceId() != null) { activities = taskService.getActivityListByProcessInstanceId(reqVO.getProcessInstanceId()); List<HistoricTaskInstance> tasks = taskService.getTaskListByProcessInstanceId(reqVO.getProcessInstanceId(), true); endActivityNodes = getEndActivityNodeList(startUserId, bpmnModel, processDefinitionInfo, historicProcessInstance, processInstanceStatus, activities, tasks); runActivityNodes = getRunApproveNodeList(startUserId, bpmnModel, processDefinition, processVariables, activities, tasks); } // 2.2 流程已经结束，直接 return，无需预测 if (BpmProcessInstanceStatusEnum.isProcessEndStatus(processInstanceStatus)) { return buildApprovalDetail(reqVO, bpmnModel, processDefinition, processDefinitionInfo, historicProcessInstance, processInstanceStatus, endActivityNodes, runActivityNodes, null, null); } // 3.1 计算当前登录用户的待办任务 // TODO @jason：有一个极端情况，如果一个用户有 2 个 task A 和 B，A 已经通过，B 需要审核。这个时，通过 A 进来，todo 拿到 B，会不会表单权限不一致哈。 BpmTaskRespVO todoTask = taskService.getFirstTodoTask(loginUserId, reqVO.getProcessInstanceId()); // 3.2 预测未运行节点的审批信息 List<ActivityNode> simulateActivityNodes = getSimulateApproveNodeList(startUserId, bpmnModel, processDefinitionInfo, processVariables, activities); // 4. 拼接最终数据 return buildApprovalDetail(reqVO, bpmnModel, processDefinition, processDefinitionInfo, historicProcessInstance, processInstanceStatus, endActivityNodes, runActivityNodes, simulateActivityNodes, todoTask); } /** * 拼接审批详情的最终数据 * <p> * 主要是，拼接审批人的用户信息、部门信息 */ private BpmApprovalDetailRespVO buildApprovalDetail(BpmApprovalDetailReqVO reqVO, BpmnModel bpmnModel, ProcessDefinition processDefinition, BpmProcessDefinitionInfoDO processDefinitionInfo, HistoricProcessInstance processInstance, Integer processInstanceStatus, List<ActivityNode> endApprovalNodeInfos, List<ActivityNode> runningApprovalNodeInfos, List<ActivityNode> simulateApprovalNodeInfos, BpmTaskRespVO todoTask) { // 1. 获取所有需要读取用户信息的 userIds List<ActivityNode> approveNodes = newArrayList(asList(endApprovalNodeInfos, runningApprovalNodeInfos, simulateApprovalNodeInfos)); Set<Long> userIds = BpmProcessInstanceConvert.INSTANCE.parseUserIds(processInstance, approveNodes, todoTask); Map<Long, AdminUserRespDTO> userMap = adminUserApi.getUserMap(userIds); Map<Long, DeptRespDTO> deptMap = deptApi.getDeptMap(convertSet(userMap.values(), AdminUserRespDTO::getDeptId)); // 2. 表单权限 Map<String, String> formFieldsPermission = getFormFieldsPermission(bpmnModel, reqVO.getActivityId(), reqVO.getTaskId()); // 3. 拼接数据 return BpmProcessInstanceConvert.INSTANCE.buildApprovalDetail(bpmnModel, processDefinition, processDefinitionInfo, processInstance, processInstanceStatus, approveNodes, todoTask, formFieldsPermission, userMap, deptMap); } /** * 获得【已结束】的活动节点们 */ private List<ActivityNode> getEndActivityNodeList(Long startUserId, BpmnModel bpmnModel, BpmProcessDefinitionInfoDO processDefinitionInfo, HistoricProcessInstance historicProcessInstance, Integer processInstanceStatus, List<HistoricActivityInstance> activities, List<HistoricTaskInstance> tasks) { // 遍历 tasks 列表，只处理已结束的 UserTask // 为什么不通过 activities 呢？因为，加签场景下，它只存在于 tasks，没有 activities，导致如果遍历 activities 的话，它无法成为一个节点 List<HistoricTaskInstance> endTasks = filterList(tasks, task -> task.getEndTime() != null); List<ActivityNode> approvalNodes = convertList(endTasks, task -> { FlowElement flowNode = BpmnModelUtils.getFlowElementById(bpmnModel, task.getTaskDefinitionKey()); ActivityNode activityNode = new ActivityNode().setId(task.getTaskDefinitionKey()).setName(task.getName()) .setNodeType(START_USER_NODE_ID.equals(task.getTaskDefinitionKey()) ? BpmSimpleModelNodeType.START_USER_NODE.getType() : BpmSimpleModelNodeType.APPROVE_NODE.getType()) .setStatus(FlowableUtils.getTaskStatus(task)) .setCandidateStrategy(BpmnModelUtils.parseCandidateStrategy(flowNode)) .setStartTime(DateUtils.of(task.getCreateTime())).setEndTime(DateUtils.of(task.getEndTime())) .setTasks(singletonList(BpmProcessInstanceConvert.INSTANCE.buildApprovalTaskInfo(task))); // 如果是取消状态，则跳过 if (BpmTaskStatusEnum.isCancelStatus(activityNode.getStatus())) { return null; } return activityNode; }); // 遍历 activities，只处理已结束的 StartEvent、EndEvent List<HistoricActivityInstance> endActivities = filterList(activities, activity -> activity.getEndTime() != null && (StrUtil.equalsAny(activity.getActivityType(), ELEMENT_EVENT_START, ELEMENT_EVENT_END))); endActivities.forEach(activity -> { // StartEvent：只处理 BPMN 的场景。因为，SIMPLE 情况下，已经有 START_USER_NODE 节点 if (ELEMENT_EVENT_START.equals(activity.getActivityType()) && BpmModelTypeEnum.BPMN.getType().equals(processDefinitionInfo.getModelType())) { ActivityNodeTask startTask = new ActivityNodeTask().setId(BpmnModelConstants.START_USER_NODE_ID) .setAssignee(startUserId).setStatus(BpmTaskStatusEnum.APPROVE.getStatus()); ActivityNode startNode = new ActivityNode().setId(startTask.getId()) .setName(BpmSimpleModelNodeType.START_USER_NODE.getName()) .setNodeType(BpmSimpleModelNodeType.START_USER_NODE.getType()) .setStatus(startTask.getStatus()).setTasks(ListUtil.of(startTask)) .setStartTime(DateUtils.of(activity.getStartTime())).setEndTime(DateUtils.of(activity.getEndTime())); approvalNodes.add(0, startNode); return; } // EndEvent if (ELEMENT_EVENT_END.equals(activity.getActivityType())) { if (BpmProcessInstanceStatusEnum.isRejectStatus(processInstanceStatus)) { // 拒绝情况下，不需要展示 EndEvent 结束节点。原因是：前端已经展示 x 效果，无需重复展示 return; } ActivityNode endNode = new ActivityNode().setId(activity.getId()) .setName(BpmSimpleModelNodeType.END_NODE.getName()) .setNodeType(BpmSimpleModelNodeType.END_NODE.getType()).setStatus(processInstanceStatus) .setStartTime(DateUtils.of(activity.getStartTime())).setEndTime(DateUtils.of(activity.getEndTime())); String reason = FlowableUtils.getProcessInstanceReason(historicProcessInstance); if (StrUtil.isNotEmpty(reason)) { endNode.setTasks(singletonList(new ActivityNodeTask().setId(endNode.getId()) .setStatus(endNode.getStatus()).setReason(reason))); } approvalNodes.add(endNode); } }); return approvalNodes; } /** * 获得【进行中】的活动节点们 */ private List<ActivityNode> getRunApproveNodeList(Long startUserId, BpmnModel bpmnModel, ProcessDefinition processDefinition, Map<String, Object> processVariables, List<HistoricActivityInstance> activities, List<HistoricTaskInstance> tasks) { // 构建运行中的任务，基于 activityId 分组 List<HistoricActivityInstance> runActivities = filterList(activities, activity -> activity.getEndTime() == null && (StrUtil.equalsAny(activity.getActivityType(), ELEMENT_TASK_USER))); Map<String, List<HistoricActivityInstance>> runningTaskMap = convertMultiMap(runActivities, HistoricActivityInstance::getActivityId); // 按照 activityId 分组，构建 ApprovalNodeInfo 节点 Map<String, HistoricTaskInstance> taskMap = convertMap(tasks, HistoricTaskInstance::getId); return convertList(runningTaskMap.entrySet(), entry -> { String activityId = entry.getKey(); List<HistoricActivityInstance> taskActivities = entry.getValue(); // 构建活动节点 FlowElement flowNode = BpmnModelUtils.getFlowElementById(bpmnModel, activityId); HistoricActivityInstance firstActivity = CollUtil.getFirst(taskActivities); // 取第一个任务，会签/或签的任务，开始时间相同 ActivityNode activityNode = new ActivityNode().setId(firstActivity.getActivityId()).setName(firstActivity.getActivityName()) .setNodeType(BpmSimpleModelNodeType.APPROVE_NODE.getType()).setStatus(BpmTaskStatusEnum.RUNNING.getStatus()) .setCandidateStrategy(BpmnModelUtils.parseCandidateStrategy(flowNode)) .setStartTime(DateUtils.of(CollUtil.getFirst(taskActivities).getStartTime())) .setTasks(new ArrayList<>()); // 处理每个任务的 tasks 属性 for (HistoricActivityInstance activity : taskActivities) { HistoricTaskInstance task = taskMap.get(activity.getTaskId()); activityNode.getTasks().add(BpmProcessInstanceConvert.INSTANCE.buildApprovalTaskInfo(task)); // 加签子任务，需要过滤掉已经完成的加签子任务 List<HistoricTaskInstance> childrenTasks = filterList( taskService.getAllChildrenTaskListByParentTaskId(activity.getTaskId(), tasks), childTask -> childTask.getEndTime() == null); if (CollUtil.isNotEmpty(childrenTasks)) { activityNode.getTasks().addAll(convertList(childrenTasks, BpmProcessInstanceConvert.INSTANCE::buildApprovalTaskInfo)); } } // 处理每个任务的 candidateUsers 属性：如果是依次审批，需要预测它的后续审批人。因为 Task 是审批完一个，创建一个新的 Task if (BpmnModelUtils.isSequentialUserTask(flowNode)) { List<Long> candidateUserIds = getTaskCandidateUserList(bpmnModel, flowNode.getId(), startUserId, processDefinition.getId(), processVariables); // 截取当前审批人位置后面的候选人，不包含当前审批人 ActivityNodeTask approvalTaskInfo = CollUtil.getFirst(activityNode.getTasks()); Assert.notNull(approvalTaskInfo, "任务不能为空"); int index = CollUtil.indexOf(candidateUserIds, userId -> ObjectUtils.equalsAny(userId, approvalTaskInfo.getOwner(), approvalTaskInfo.getAssignee())); // 委派或者向前加签情况，需要先比较 owner activityNode.setCandidateUserIds(CollUtil.sub(candidateUserIds, index + 1, candidateUserIds.size())); } return activityNode; }); } /** * 获得【预测（未来）】的活动节点们 */ private List<ActivityNode> getSimulateApproveNodeList(Long startUserId, BpmnModel bpmnModel, BpmProcessDefinitionInfoDO processDefinitionInfo, Map<String, Object> processVariables, List<HistoricActivityInstance> activities) { // TODO @芋艿：【可优化】在驳回场景下，未来的预测准确性不高。原因是，驳回后，HistoricActivityInstance 包括了历史的操作，不是只有 startEvent 到当前节点的记录 Set<String> runActivityIds = convertSet(activities, HistoricActivityInstance::getActivityId); // 情况一：BPMN 设计器 if (Objects.equals(BpmModelTypeEnum.BPMN.getType(), processDefinitionInfo.getModelType())) { List<FlowElement> flowElements = BpmnModelUtils.simulateProcess(bpmnModel, processVariables); return convertList(flowElements, flowElement -> buildNotRunApproveNodeForBpmn(startUserId, bpmnModel, processDefinitionInfo, processVariables, flowElement, runActivityIds)); } // 情况二：SIMPLE 设计器 if (Objects.equals(BpmModelTypeEnum.SIMPLE.getType(), processDefinitionInfo.getModelType())) { BpmSimpleModelNodeVO simpleModel = JsonUtils.parseObject(processDefinitionInfo.getSimpleModel(), BpmSimpleModelNodeVO.class); List<BpmSimpleModelNodeVO> simpleNodes = SimpleModelUtils.simulateProcess(simpleModel, processVariables); return convertList(simpleNodes, simpleNode -> buildNotRunApproveNodeForSimple(startUserId, bpmnModel, processDefinitionInfo, processVariables, simpleNode, runActivityIds)); } throw new IllegalArgumentException("未知设计器类型：" + processDefinitionInfo.getModelType()); } private ActivityNode buildNotRunApproveNodeForSimple(Long startUserId, BpmnModel bpmnModel, BpmProcessDefinitionInfoDO processDefinitionInfo, Map<String, Object> processVariables, BpmSimpleModelNodeVO node, Set<String> runActivityIds) { // TODO @芋艿：【可优化】在驳回场景下，未来的预测准确性不高。原因是，驳回后，HistoricActivityInstance 包括了历史的操作，不是只有 startEvent 到当前节点的记录 if (runActivityIds.contains(node.getId())) { return null; } ActivityNode activityNode = new ActivityNode().setId(node.getId()).setName(node.getName()) .setNodeType(node.getType()).setCandidateStrategy(node.getCandidateStrategy()) .setStatus(BpmTaskStatusEnum.NOT_START.getStatus()); // 1. 开始节点/审批节点 if (ObjectUtils.equalsAny(node.getType(), BpmSimpleModelNodeType.START_USER_NODE.getType(), BpmSimpleModelNodeType.APPROVE_NODE.getType())) { List<Long> candidateUserIds = getTaskCandidateUserList(bpmnModel, node.getId(), startUserId, processDefinitionInfo.getProcessDefinitionId(), processVariables); activityNode.setCandidateUserIds(candidateUserIds); return activityNode; } // 2. 结束节点 if (BpmSimpleModelNodeType.END_NODE.getType().equals(node.getType())) { return activityNode; } // 3. 抄送节点 if (CollUtil.isEmpty(runActivityIds) && // 流程发起时：需要展示抄送节点，用于选择抄送人 BpmSimpleModelNodeType.COPY_NODE.getType().equals(node.getType())) { return activityNode; } return null; } private ActivityNode buildNotRunApproveNodeForBpmn(Long startUserId, BpmnModel bpmnModel, BpmProcessDefinitionInfoDO processDefinitionInfo, Map<String, Object> processVariables, FlowElement node, Set<String> runActivityIds) { if (runActivityIds.contains(node.getId())) { return null; } ActivityNode activityNode = new ActivityNode().setId(node.getId()).setStatus(BpmTaskStatusEnum.NOT_START.getStatus()); // 1. 开始节点 if (node instanceof StartEvent) { return activityNode.setName(BpmSimpleModelNodeType.START_USER_NODE.getName()) .setNodeType(BpmSimpleModelNodeType.START_USER_NODE.getType()); } // 2. 审批节点 if (node instanceof UserTask) { List<Long> candidateUserIds = getTaskCandidateUserList(bpmnModel, node.getId(), startUserId, processDefinitionInfo.getProcessDefinitionId(), processVariables); return activityNode.setName(node.getName()).setNodeType(BpmSimpleModelNodeType.APPROVE_NODE.getType()) .setCandidateStrategy(BpmnModelUtils.parseCandidateStrategy(node)) .setCandidateUserIds(candidateUserIds); } // 3. 结束节点 if (node instanceof EndEvent) { return activityNode.setName(BpmSimpleModelNodeType.END_NODE.getName()) .setNodeType(BpmSimpleModelNodeType.END_NODE.getType()); } return null; } private List<Long> getTaskCandidateUserList(BpmnModel bpmnModel, String activityId, Long startUserId, String processDefinitionId, Map<String, Object> processVariables) { Set<Long> userIds = taskCandidateInvoker.calculateUsersByActivity(bpmnModel, activityId, startUserId, processDefinitionId, processVariables); return new ArrayList<>(userIds); } @Override public BpmProcessInstanceBpmnModelViewRespVO getProcessInstanceBpmnModelView(String id) { // 1.1 获得流程实例 HistoricProcessInstance processInstance = getHistoricProcessInstance(id); if (processInstance == null) { return null; } // 1.2 获得流程定义 BpmnModel bpmnModel = processDefinitionService.getProcessDefinitionBpmnModel(processInstance.getProcessDefinitionId()); if (bpmnModel == null) { return null; } BpmSimpleModelNodeVO simpleModel = null; BpmProcessDefinitionInfoDO processDefinitionInfo = processDefinitionService.getProcessDefinitionInfo( processInstance.getProcessDefinitionId()); if (processDefinitionInfo != null && BpmModelTypeEnum.SIMPLE.getType().equals(processDefinitionInfo.getModelType())) { simpleModel = JsonUtils.parseObject(processDefinitionInfo.getSimpleModel(), BpmSimpleModelNodeVO.class); } // 1.3 获得流程实例对应的活动实例列表 + 任务列表 List<HistoricActivityInstance> activities = taskService.getActivityListByProcessInstanceId(id); List<HistoricTaskInstance> tasks = taskService.getTaskListByProcessInstanceId(id, true); // 2.1 拼接进度信息 Set<String> unfinishedTaskActivityIds = convertSet(activities, HistoricActivityInstance::getActivityId, activityInstance -> activityInstance.getEndTime() == null); Set<String> finishedTaskActivityIds = convertSet(activities, HistoricActivityInstance::getActivityId, activityInstance -> activityInstance.getEndTime() != null && ObjectUtil.notEqual(activityInstance.getActivityType(), BpmnXMLConstants.ELEMENT_SEQUENCE_FLOW)); Set<String> finishedSequenceFlowActivityIds = convertSet(activities, HistoricActivityInstance::getActivityId, activityInstance -> activityInstance.getEndTime() != null && ObjectUtil.equals(activityInstance.getActivityType(), BpmnXMLConstants.ELEMENT_SEQUENCE_FLOW)); // 特殊：会签情况下，会有部分已完成（审批）、部分未完成（待审批），此时需要 finishedTaskActivityIds 移除掉 unfinishedTaskActivityIds.removeAll(finishedTaskActivityIds); // 特殊：如果流程实例被拒绝，则需要计算是哪个活动节点。 // 注意，只取最后一个。因为会存在多次拒绝的情况，拒绝驳回到指定节点 Set<String> rejectTaskActivityIds = CollUtil.newHashSet(); if (BpmProcessInstanceStatusEnum.isRejectStatus(FlowableUtils.getProcessInstanceStatus(processInstance))) { tasks.stream() .filter(task -> BpmTaskStatusEnum.isRejectStatus(FlowableUtils.getTaskStatus(task))) .max(Comparator.comparing(HistoricTaskInstance::getEndTime)) .ifPresent(reject -> rejectTaskActivityIds.add(reject.getTaskDefinitionKey())); finishedTaskActivityIds.removeAll(rejectTaskActivityIds); } // 2.2 拼接基础信息 Set<Long> userIds = BpmProcessInstanceConvert.INSTANCE.parseUserIds02(processInstance, tasks); Map<Long, AdminUserRespDTO> userMap = adminUserApi.getUserMap(userIds); Map<Long, DeptRespDTO> deptMap = deptApi.getDeptMap(convertSet(userMap.values(), AdminUserRespDTO::getDeptId)); return BpmProcessInstanceConvert.INSTANCE.buildProcessInstanceBpmnModelView(processInstance, tasks, bpmnModel, simpleModel, unfinishedTaskActivityIds, finishedTaskActivityIds, finishedSequenceFlowActivityIds, rejectTaskActivityIds, userMap, deptMap); } // ========== Update 写入相关方法 ========== @Override @Transactional(rollbackFor = Exception.class) public String createProcessInstance(Long userId, @Valid BpmProcessInstanceCreateReqVO createReqVO) { // 获得流程定义 ProcessDefinition definition = processDefinitionService.getProcessDefinition(createReqVO.getProcessDefinitionId()); // 发起流程 return createProcessInstance0(userId, definition, createReqVO.getVariables(), null, createReqVO.getStartUserSelectAssignees()); } @Override public String createProcessInstance(Long userId, @Valid BpmProcessInstanceCreateReqDTO createReqDTO) { // 获得流程定义 ProcessDefinition definition = processDefinitionService.getActiveProcessDefinition(createReqDTO.getProcessDefinitionKey()); // 发起流程 return createProcessInstance0(userId, definition, createReqDTO.getVariables(), createReqDTO.getBusinessKey(), createReqDTO.getStartUserSelectAssignees()); } private String createProcessInstance0(Long userId, ProcessDefinition definition, Map<String, Object> variables, String businessKey, Map<String, List<Long>> startUserSelectAssignees) { // 1.1 校验流程定义 if (definition == null) { throw exception(PROCESS_DEFINITION_NOT_EXISTS); } if (definition.isSuspended()) { throw exception(PROCESS_DEFINITION_IS_SUSPENDED); } BpmProcessDefinitionInfoDO processDefinitionInfo = processDefinitionService.getProcessDefinitionInfo(definition.getId()); if (processDefinitionInfo == null) { throw exception(PROCESS_DEFINITION_NOT_EXISTS); } // 1.2 校验是否能够发起 if (!processDefinitionService.canUserStartProcessDefinition(processDefinitionInfo, userId)) { throw exception(PROCESS_INSTANCE_START_USER_CAN_START); } // 1.3 校验发起人自选审批人 validateStartUserSelectAssignees(definition, startUserSelectAssignees); // 2. 创建流程实例 if (variables == null) { variables = new HashMap<>(); } FlowableUtils.filterProcessInstanceFormVariable(variables); // 过滤一下，避免 ProcessInstance 系统级的变量被占用 variables.put(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_START_USER_ID, userId); // 设置流程变量，发起人 ID variables.put(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS, // 流程实例状态：审批中 BpmProcessInstanceStatusEnum.RUNNING.getStatus()); if (CollUtil.isNotEmpty(startUserSelectAssignees)) { variables.put(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_START_USER_SELECT_ASSIGNEES, startUserSelectAssignees); } ProcessInstance instance = runtimeService.createProcessInstanceBuilder() .processDefinitionId(definition.getId()) .businessKey(businessKey) .name(definition.getName().trim()) .variables(variables) .start(); return instance.getId(); } private void validateStartUserSelectAssignees(ProcessDefinition definition, Map<String, List<Long>> startUserSelectAssignees) { // 1. 获得发起人自选审批人的 UserTask/ServiceTask 列表 BpmnModel bpmnModel = processDefinitionService.getProcessDefinitionBpmnModel(definition.getId()); List<Task> tasks = BpmTaskCandidateStartUserSelectStrategy.getStartUserSelectTaskList(bpmnModel); if (CollUtil.isEmpty(tasks)) { return; } // 2. 校验发起人自选审批人的审批人和抄送人是否都配置了 tasks.forEach(task -> { List<Long> assignees = startUserSelectAssignees != null ? startUserSelectAssignees.get(task.getId()) : null; if (CollUtil.isEmpty(assignees)) { throw exception(PROCESS_INSTANCE_START_USER_SELECT_ASSIGNEES_NOT_CONFIG, task.getName()); } Map<Long, AdminUserRespDTO> userMap = adminUserApi.getUserMap(assignees); assignees.forEach(assignee -> { if (userMap.get(assignee) == null) { throw exception(PROCESS_INSTANCE_START_USER_SELECT_ASSIGNEES_NOT_EXISTS, task.getName(), assignee); } }); }); } @Override public void cancelProcessInstanceByStartUser(Long userId, @Valid BpmProcessInstanceCancelReqVO cancelReqVO) { // 1.1 校验流程实例存在 ProcessInstance instance = getProcessInstance(cancelReqVO.getId()); if (instance == null) { throw exception(PROCESS_INSTANCE_CANCEL_FAIL_NOT_EXISTS); } // 1.2 只能取消自己的 if (!Objects.equals(instance.getStartUserId(), String.valueOf(userId))) { throw exception(PROCESS_INSTANCE_CANCEL_FAIL_NOT_SELF); } // 2. 取消流程 updateProcessInstanceCancel(cancelReqVO.getId(), BpmReasonEnum.CANCEL_PROCESS_INSTANCE_BY_START_USER.format(cancelReqVO.getReason())); } @Override public void cancelProcessInstanceByAdmin(Long userId, BpmProcessInstanceCancelReqVO cancelReqVO) { // 1.1 校验流程实例存在 ProcessInstance instance = getProcessInstance(cancelReqVO.getId()); if (instance == null) { throw exception(PROCESS_INSTANCE_CANCEL_FAIL_NOT_EXISTS); } // 2. 取消流程 AdminUserRespDTO user = adminUserApi.getUser(userId).getCheckedData(); updateProcessInstanceCancel(cancelReqVO.getId(), BpmReasonEnum.CANCEL_PROCESS_INSTANCE_BY_ADMIN.format(user.getNickname(), cancelReqVO.getReason())); } private void updateProcessInstanceCancel(String id, String reason) { // 1. 更新流程实例 status runtimeService.setVariable(id, BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS, BpmProcessInstanceStatusEnum.CANCEL.getStatus()); runtimeService.setVariable(id, BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_REASON, reason); // 2. 结束流程 taskService.moveTaskToEnd(id); } @Override public void updateProcessInstanceReject(ProcessInstance processInstance, String reason) { runtimeService.setVariable(processInstance.getProcessInstanceId(), BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS, BpmProcessInstanceStatusEnum.REJECT.getStatus()); runtimeService.setVariable(processInstance.getProcessInstanceId(), BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_REASON, BpmReasonEnum.REJECT_TASK.format(reason)); } // ========== Event 事件相关方法 ========== @Override public void processProcessInstanceCompleted(ProcessInstance instance) { // 注意：需要基于 instance 设置租户编号，避免 Flowable 内部异步时，丢失租户编号 FlowableUtils.execute(instance.getTenantId(), () -> { // 1.1 获取当前状态 Integer status = (Integer) instance.getProcessVariables().get(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS); String reason = (String) instance.getProcessVariables().get(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_REASON); // 1.2 当流程状态还是审批状态中，说明审批通过了，则变更下它的状态 // 为什么这么处理？因为流程完成，并且完成了，说明审批通过了 if (Objects.equals(status, BpmProcessInstanceStatusEnum.RUNNING.getStatus())) { status = BpmProcessInstanceStatusEnum.APPROVE.getStatus(); runtimeService.setVariable(instance.getId(), BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS, status); } // 2. 发送对应的消息通知 if (Objects.equals(status, BpmProcessInstanceStatusEnum.APPROVE.getStatus())) { messageService.sendMessageWhenProcessInstanceApprove(BpmProcessInstanceConvert.INSTANCE.buildProcessInstanceApproveMessage(instance)); } else if (Objects.equals(status, BpmProcessInstanceStatusEnum.REJECT.getStatus())) { messageService.sendMessageWhenProcessInstanceReject( BpmProcessInstanceConvert.INSTANCE.buildProcessInstanceRejectMessage(instance, reason)); } // 3. 发送流程实例的状态事件 processInstanceEventPublisher.sendProcessInstanceResultEvent( BpmProcessInstanceConvert.INSTANCE.buildProcessInstanceStatusEvent(this, instance, status)); }); } }
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