重构优化查询工单详情列表代码

tuoheng-service/tuoheng-admin/src/main/java/com/tuoheng/admin/service/inspectionfile/query/QueryInspectionFilePageListByWorkOrderIdService.java

 package com.tuoheng.admin.service.inspectionfile.query;
 
 import cn.hutool.core.collection.CollectionUtil;
+import cn.hutool.core.util.ObjectUtil;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
                 inspectionFileHandleVo.setQuestionContent(questionType.getContent());
             }
 
-            inspectionFileHandle = inspectionFileHandleMap.get(inspectionFile.getId());
-            if (null != inspectionFileHandle) {
-                if (!StringUtils.isEmpty(inspectionFileHandle.getHandlerImage())) {
-                    handlerImageList = new ArrayList<>();
-                    String[] arr = inspectionFileHandle.getHandlerImage().split(",");
-                    List<String> list = Arrays.stream(arr).map(String::toString).collect(Collectors.toList());
-                    for (String str : list) {
-                        handlerImageList.add(CommonConfig.imageURL + str);
+            if (ObjectUtil.isNotNull(inspectionFileHandleMap)) {
+                inspectionFileHandle = inspectionFileHandleMap.get(inspectionFile.getId());
+                if (null != inspectionFileHandle) {
+                    if (!StringUtils.isEmpty(inspectionFileHandle.getHandlerImage())) {
+                        handlerImageList = new ArrayList<>();
+                        String[] arr = inspectionFileHandle.getHandlerImage().split(",");
+                        List<String> list = Arrays.stream(arr).map(String::toString).collect(Collectors.toList());
+                        for (String str : list) {
+                            handlerImageList.add(CommonConfig.imageURL + str);
+                        }
                     }
-                }
 
-                user = inspectionFileHandleUserMap.get(inspectionFileHandle.getHandlerUser());
-                if (null != user) {
-                    inspectionFileHandleVo.setHandlerUsername(user.getRealname());
-                }
+                    if (ObjectUtil.isNotNull(inspectionFileHandleUserMap)) {
+                        user = inspectionFileHandleUserMap.get(inspectionFileHandle.getHandlerUser());
+                        if (null != user) {
+                            inspectionFileHandleVo.setHandlerUsername(user.getRealname());
+                        }
 
-                inspectionFileHandleVo.setHandlerUser(inspectionFileHandle.getHandlerUser());
-                inspectionFileHandleVo.setHandlerImageList(handlerImageList);
-                inspectionFileHandleVo.setHandlerTime(inspectionFileHandle.getHandlerTime());
-                inspectionFileHandleVo.setHandlerResult(inspectionFileHandle.getHandlerResult());
+                        inspectionFileHandleVo.setHandlerUser(inspectionFileHandle.getHandlerUser());
+                        inspectionFileHandleVo.setHandlerImageList(handlerImageList);
+                        inspectionFileHandleVo.setHandlerTime(inspectionFileHandle.getHandlerTime());
+                        inspectionFileHandleVo.setHandlerResult(inspectionFileHandle.getHandlerResult());
+                    }
+                }
             }
             inspectionFileHandleVoList.add(inspectionFileHandleVo);
         }
     }
 
     private Map<String, InspectionFileHandle> getInspectionFileHandleMap(List<InspectionFileHandle> inspectionFileHandleList) {
+        if (CollectionUtil.isEmpty(inspectionFileHandleList)) {
+            return null;
+        }
         Map<String, InspectionFileHandle> inspectionFileHandleMap = inspectionFileHandleList.stream().collect(Collectors.toMap(InspectionFileHandle::getId, Function.identity()));
         return inspectionFileHandleMap;
     }
 
     private Map<String, User> getInspectionFileHandleUserMap(List<InspectionFileHandle> inspectionFileHandleList) {
+        if (CollectionUtil.isEmpty(inspectionFileHandleList)) {
+            return null;
+        }
         List<String> userIdList = inspectionFileHandleList.stream().map(o -> o.getHandlerUser()).collect(Collectors.toList());
         List<User> userList = userMapper.selectList(new LambdaQueryWrapper<User>()
                 .in(User::getId, userIdList)