From 43b6292b4b2810560bbf2d22c96bd44c11d4160b Mon Sep 17 00:00:00 2001
From: rain <167982779@qq.com>
Date: Mon, 22 Jul 2024 10:29:06 +0800
Subject: [PATCH] 将文件获取后压缩在服务器

---
 src/main/java/com/dji/sample/media/service/impl/FileServiceImpl.java |  102 ++++++++++++++++++++++++++++++++++++++------------
 1 files changed, 77 insertions(+), 25 deletions(-)

diff --git a/src/main/java/com/dji/sample/media/service/impl/FileServiceImpl.java b/src/main/java/com/dji/sample/media/service/impl/FileServiceImpl.java
index 6b52db1..c1d2c61 100644
--- a/src/main/java/com/dji/sample/media/service/impl/FileServiceImpl.java
+++ b/src/main/java/com/dji/sample/media/service/impl/FileServiceImpl.java
@@ -22,6 +22,7 @@
 import com.dji.sample.media.model.*;
 import com.dji.sample.media.service.IFileService;
 import com.dji.sample.media.util.ImgUtil;
+import com.dji.sample.media.util.MinioFileDownloader;
 import com.dji.sample.patches.dao.GetPatchesMapper;
 import com.dji.sample.patches.model.entity.LotInfo;
 import com.dji.sample.patches.utils.DistrictCodeUtils;
@@ -43,6 +44,7 @@
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import javax.servlet.http.HttpServletResponse;
 import java.awt.*;
 import java.io.File;
 import java.io.FileInputStream;
@@ -54,6 +56,8 @@
 import java.util.*;
 import java.util.List;
 import java.util.stream.Collectors;
+
+import static com.dji.sample.media.util.ImageDownloaderAndCompressor.*;
 
 /**
  * @author sean
@@ -429,6 +433,36 @@
     }
 
     @Override
+    public ResponseResult downloadImages(List<String> jobIds) {
+        try {
+            String bucketPath = "/data/software/minio-data/cloud-bucket/";
+            List<String> prefixes = getUniqueFilePaths(jobIds);
+
+            MinioFileDownloader downloader = new MinioFileDownloader(bucketPath);
+
+            // 下载并压缩文件到本地目录
+            String localSaveDir = "/data/software/minio-data/zip-bucket/"; // 修改为你想保存的本地目录
+            downloader.downloadAndZipFolders(prefixes, localSaveDir);
+
+            System.out.println("压缩文件已保存到:" + localSaveDir);
+
+        }  catch (Exception e) {
+            e.printStackTrace();
+            return ResponseResult.error("下载失败"+e.getMessage());
+        }
+        return ResponseResult.success("下载成功");
+    }
+    @Override
+    public List<String> getUniqueFilePaths(List<String> jobIds) {
+        return mapper.selectList(
+                        new LambdaQueryWrapper<MediaFileEntity>()
+                                .in(MediaFileEntity::getJobId, jobIds))
+                .stream()
+                .map(MediaFileEntity::getFilePath)
+                .distinct()
+                .collect(Collectors.toList());
+    }
+    @Override
     public List<MediaFileDTO> getFilesByWorkspaceAndJobId(String workspaceId, String jobId) {
         return mapper.selectList(new LambdaQueryWrapper<MediaFileEntity>()
                         .eq(MediaFileEntity::getWorkspaceId, workspaceId)
@@ -791,43 +825,58 @@
     }
     @Override
     public PaginationData<MediaFileEntity> getJobId(int pageNum, int pageSize, String workspaceId) {
-        // 分页查询
-        Page<MediaFileEntity> page = new Page<>(pageNum, pageSize);
-        Page<MediaFileEntity> resultPage = mapper.selectPage(page, new LambdaQueryWrapper<MediaFileEntity>()
-                .eq(MediaFileEntity::getWorkspaceId, workspaceId));
+        List<MediaFileEntity> allRecords = new ArrayList<>();
+        int currentPageNum = 1;  // 从第一页开始获取记录
 
-        List<MediaFileEntity> result = resultPage.getRecords();
+        // 用于存储去重后的记录
+        Map<String, MediaFileEntity> uniqueFilesMap = new HashMap<>();
 
-        // 根据 fileName 字段进行去重并设置 JobName
-        Map<String, MediaFileEntity> uniqueFilesMap = result.stream()
-                .peek(mediaFile -> {
-                    String taskNameResult = waylineJobService.getName(mediaFile.getJobId());
-                    mediaFile.setJobName(taskNameResult);
-                })
-                .collect(Collectors.toMap(
-                        MediaFileEntity::getFileName,
-                        entity -> entity,
-                        (existing, replacement) -> existing // 如果有重复的,保留已有的
-                ));
+        while (true) {
+            // 分页查询
+            Page<MediaFileEntity> page = new Page<>(currentPageNum, pageSize);
+            Page<MediaFileEntity> resultPage = mapper.selectPage(page, new LambdaQueryWrapper<MediaFileEntity>()
+                    .eq(MediaFileEntity::getWorkspaceId, workspaceId));
 
+            List<MediaFileEntity> result = resultPage.getRecords();
+
+            // 检查是否还有更多记录
+            if (result.isEmpty()) {
+                break;  // 没有更多记录了,停止请求
+            }
+
+            // 根据 fileName 字段进行去重并设置 JobName
+            result.stream()
+                    .peek(mediaFile -> {
+                        String taskNameResult = waylineJobService.getName(mediaFile.getJobId());
+                        mediaFile.setJobName(taskNameResult);
+                    })
+                    .forEach(mediaFile -> uniqueFilesMap.putIfAbsent(mediaFile.getFileName(), mediaFile));
+
+            // 增加当前页数以获取更多记录
+            currentPageNum++;
+        }
+
+        // 获取去重后的实际总数
         List<MediaFileEntity> uniqueFiles = new ArrayList<>(uniqueFilesMap.values());
-
-        // 使用去重后的列表重新计算总数
         int uniqueTotal = uniqueFiles.size();
+
+        // 计算当前页的起始和结束索引
+        int fromIndex = Math.min((pageNum - 1) * pageSize, uniqueTotal);
+        int toIndex = Math.min(fromIndex + pageSize, uniqueTotal);
+
+        // 获取当前页的数据
+        List<MediaFileEntity> pagedUniqueFiles = uniqueFiles.subList(fromIndex, toIndex);
 
         // 创建新的分页对象,使用去重后的总数
         Page<MediaFileEntity> uniquePage = new Page<>(pageNum, pageSize, uniqueTotal);
-
-        // 截取当前页的数据
-        int fromIndex = Math.min((pageNum - 1) * pageSize, uniqueTotal);
-        int toIndex = Math.min(fromIndex + pageSize, uniqueTotal);
-        List<MediaFileEntity> pagedUniqueFiles = uniqueFiles.subList(fromIndex, toIndex);
 
         // 使用新的分页对象构造 Pagination
         Pagination pagination = new Pagination(uniquePage);
 
         return new PaginationData<>(pagedUniqueFiles, pagination);
     }
+
+
 
 
     @Override
@@ -870,9 +919,12 @@
 
 
 
-    public List<MediaFileEntity> getMedia(String jobId){
-      return   mapper.selectList(new LambdaQueryWrapper<MediaFileEntity>().eq(MediaFileEntity::getJobId,jobId));
+    public List<MediaFileEntity> getMedia(String jobId) {
+        return mapper.selectList(new LambdaQueryWrapper<MediaFileEntity>()
+                .eq(MediaFileEntity::getJobId, jobId)
+                .groupBy(MediaFileEntity::getFileName));  // 使用groupBy去重
     }
+
     public void updateById(Integer id, MediaFileMarkEntity entity) {
         entity.setIsadd(1);
         UpdateWrapper<MediaFileMarkEntity> updateWrapper = new UpdateWrapper<>();

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