【功能新增】 增加审批人分配策略：表单内的部门负责人

yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/candidate/strategy/dept/BpmTaskCandidateDeptLeaderOnFormStrategy.java

@@ -0,0 +1,53 @@
+package cn.iocoder.yudao.module.bpm.framework.flowable.core.candidate.strategy.dept;
+
+import cn.hutool.core.convert.Convert;
+import cn.hutool.core.lang.Assert;
+import cn.iocoder.yudao.module.bpm.framework.flowable.core.candidate.BpmTaskCandidateStrategy;
+import cn.iocoder.yudao.module.bpm.framework.flowable.core.enums.BpmTaskCandidateStrategyEnum;
+import org.flowable.bpmn.model.BpmnModel;
+import org.flowable.engine.delegate.DelegateExecution;
+import org.springframework.stereotype.Component;
+
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * 表单内部门负责人 {@link BpmTaskCandidateStrategy} 实现类
+ *
+ * @author jason
+ */
+@Component
+public class BpmTaskCandidateDeptLeaderOnFormStrategy extends AbstractBpmTaskCandidateDeptLeaderStrategy {
+    @Override
+    public BpmTaskCandidateStrategyEnum getStrategy() {
+        return BpmTaskCandidateStrategyEnum.DEPT_LEADER_ON_FORM;
+    }
+
+    @Override
+    public void validateParam(String param) {
+        // 参数格式: | 分隔：1）左边为表单内部门字段。2）右边为部门层级
+        String[] params = param.split("\\|");
+        Assert.isTrue(params.length == 2, "参数格式不匹配");
+        Assert.notEmpty(param, "表单内部门字段不能为空");
+        int level = Integer.parseInt(params[1]);
+        Assert.isTrue(level > 0, "部门层级必须大于 0");
+    }
+
+    @Override
+    public Set<Long> calculateUsersByTask(DelegateExecution execution, String param) {
+        String[] params = param.split("\\|");
+        Object result = execution.getVariable(params[0]);
+        int level = Integer.parseInt(params[1]);
+        return super.getMultiLevelDeptLeaderIds(Convert.toList(Long.class, result), level);
+    }
+
+    @Override
+    public Set<Long> calculateUsersByActivity(BpmnModel bpmnModel, String activityId,
+                                              String param, Long startUserId, String processDefinitionId,
+                                              Map<String, Object> processVariables) {
+        String[] params = param.split("\\|");
+        Object result = processVariables == null ? null : processVariables.get(params[0]);
+        int level = Integer.parseInt(params[1]);
+        return super.getMultiLevelDeptLeaderIds(Convert.toList(Long.class, result), level);
+    }
+}

yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/framework/flowable/core/enums/BpmTaskCandidateStrategyEnum.java

@@ -30,6 +30,7 @@ public enum BpmTaskCandidateStrategyEnum implements IntArrayValuable {
     START_USER_DEPT_LEADER_MULTI(38, "发起人连续多级部门的负责人"),
     USER_GROUP(40, "用户组"),
     USER_FIELD_ON_FORM(50, "表单内用户字段"),
+    DEPT_LEADER_ON_FORM(51, "表单内部分负责人"),
     EXPRESSION(60, "流程表达式"), // 表达式 ExpressionManager
     ASSIGN_EMPTY(1, "审批人为空"),
     ;