public virtual Task <GetOssObjectsResponse> GetObjectsAsync(GetOssObjectsRequest request)
{
// 先定位检索的目录
var filePath = CalculateFilePath(request.BucketName, request.Prefix);
if (!Directory.Exists(filePath))
{
throw new BusinessException(code: OssManagementErrorCodes.ContainerNotFound);
// throw new ContainerNotFoundException($"Can't not found container {request.BucketName} in file system");
}
// 目录也属于Oss对象,需要抽象的文件系统集合来存储
var fileSystemNames = Directory.GetFileSystemEntries(filePath);
int maxFilesCount = fileSystemNames.Length;
// 排序所有文件与目录
Array.Sort(fileSystemNames, delegate(string x, string y)
{
// 检索的是文件系统名称
// 需要判断是否为文件夹进行升序排序
// 参考 OssObjectComparer
var xFolder = Directory.Exists(x);
var yFolder = Directory.Exists(y);
if (xFolder && yFolder)
{
return(x.CompareTo(y));
}
if (xFolder && !yFolder)
{
return(-1);
}
if (!xFolder && yFolder)
{
return(1);
}
return(x.CompareTo(y));
});
// 需要计算从哪个位置截断
int markIndex = 0;
if (!request.Marker.IsNullOrWhiteSpace())
{
markIndex = fileSystemNames.FindIndex(x => x.EndsWith(request.Marker));
if (markIndex < 0)
{
markIndex = 0;
}
}
// 需要截断Oss对象列表
var copyFileSystemNames = fileSystemNames;
if (markIndex > 0)
{
copyFileSystemNames = fileSystemNames[(markIndex + 1)..];
public virtual async Task <GetOssObjectsResponse> GetObjectsAsync(GetOssObjectsRequest request)
{
var ossClient = await CreateClientAsync();
var objectPath = GetBasePath(request.Prefix);
var marker = !objectPath.IsNullOrWhiteSpace() && !request.Marker.IsNullOrWhiteSpace()
? request.Marker.Replace(objectPath, "")
: request.Marker;
var aliyunRequest = new ListObjectsRequest(request.BucketName)
{
Marker = !marker.IsNullOrWhiteSpace() ? objectPath + marker : marker,
Prefix = objectPath,
MaxKeys = request.MaxKeys,
EncodingType = request.EncodingType,
Delimiter = request.Delimiter
};
var objectsResponse = ossClient.ListObjects(aliyunRequest);
var ossObjects = objectsResponse.ObjectSummaries
.Where(x => !x.Key.Equals(objectsResponse.Prefix)) // 过滤当前的目录返回值
.Select(x => new OssObject(
!objectPath.IsNullOrWhiteSpace() && !x.Key.Equals(objectPath)
? x.Key.Replace(objectPath, "")
: x.Key, // 去除目录名称
request.Prefix,
x.LastModified,
x.Size,
x.LastModified,
new Dictionary <string, string>
{
{ "Id", x.Owner?.Id },
{ "DisplayName", x.Owner?.DisplayName }
},
x.Key.EndsWith("/"))
{
FullName = x.Key
})
.ToList();
// 当 Delimiter 为 / 时, objectsResponse.CommonPrefixes 可用于代表层级目录
if (objectsResponse.CommonPrefixes.Any())
{
ossObjects.InsertRange(0,
objectsResponse.CommonPrefixes
.Select(x => new OssObject(
x.Replace(objectPath, ""),
request.Prefix,
null,
0L,
null,
null,
true)));
}
// 排序
// TODO: 是否需要客户端来排序
ossObjects.Sort(new OssObjectComparer());
return(new GetOssObjectsResponse(
objectsResponse.BucketName,
request.Prefix,
marker,
!objectPath.IsNullOrWhiteSpace() && !objectsResponse.NextMarker.IsNullOrWhiteSpace()
? objectsResponse.NextMarker.Replace(objectPath, "")
: objectsResponse.NextMarker,
objectsResponse.Delimiter,
objectsResponse.MaxKeys,
ossObjects));
}
