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+package cn.iocoder.yudao.module.bpm.service.task.trigger;
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+
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+import cn.hutool.core.collection.CollUtil;
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+import cn.iocoder.yudao.framework.common.util.json.JsonUtils;
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+import cn.iocoder.yudao.module.bpm.controller.admin.definition.vo.model.simple.BpmSimpleModelNodeVO.TriggerSetting.FormTriggerSetting;
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+import cn.iocoder.yudao.module.bpm.enums.definition.BpmTriggerTypeEnum;
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+import cn.iocoder.yudao.module.bpm.framework.flowable.core.util.BpmnModelUtils;
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+import cn.iocoder.yudao.module.bpm.framework.flowable.core.util.SimpleModelUtils;
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+import cn.iocoder.yudao.module.bpm.service.task.BpmProcessInstanceService;
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+import com.fasterxml.jackson.core.type.TypeReference;
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+import jakarta.annotation.Resource;
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+import lombok.extern.slf4j.Slf4j;
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+import org.springframework.stereotype.Component;
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+
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+import java.util.List;
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+import java.util.Map;
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+
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+/**
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+ * BPM 更新流程表单触发器
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+ *
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+ * @author jason
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+ */
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+@Component
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+@Slf4j
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+public class BpmFormUpdateTrigger implements BpmTrigger {
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+
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+ @Resource
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+ private BpmProcessInstanceService processInstanceService;
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+
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+ @Override
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+ public BpmTriggerTypeEnum getType() {
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+ return BpmTriggerTypeEnum.FORM_UPDATE;
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+ }
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+
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+ @Override
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+ public void execute(String processInstanceId, String param) {
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+ // 1. 解析更新流程表单配置
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+ List<FormTriggerSetting> settings = JsonUtils.parseObject(param, new TypeReference<>() {});
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+ if (CollUtil.isEmpty(settings)) {
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+ log.error("[execute][流程({}) 更新流程表单触发器配置为空]", processInstanceId);
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+ return;
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+ }
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+
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+ // 2.获取流程变量
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+ Map<String, Object> processVariables = processInstanceService.getProcessInstance(processInstanceId).getProcessVariables();
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+
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+ // 3.更新流程变量
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+ for (FormTriggerSetting setting : settings) {
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+ if (CollUtil.isEmpty(setting.getUpdateFormFields())) {
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+ continue;
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+ }
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+ boolean isFormUpdateNeeded = true;
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+ if (setting.getConditionType() != null) { // 配置了条件,判断条件是否满足
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+ String conditionExpression = SimpleModelUtils.buildConditionExpression(setting.getConditionType(), setting.getConditionExpression(),
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+ setting.getConditionGroups());
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+ isFormUpdateNeeded = BpmnModelUtils.evalConditionExpress(processVariables, conditionExpression);
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+ }
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+ if (isFormUpdateNeeded) {
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+ processInstanceService.updateProcessInstanceVariables(processInstanceId, setting.getUpdateFormFields());
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+ }
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+ }
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+ }
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+}
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