/// <summary>
/// 增量下载文件
/// </summary>
/// <param name="storageNode">GetStorageNode方法返回的存储节点</param>
/// <param name="fileName">文件名</param>
/// <param name="offset">从文件起始点的偏移量</param>
/// <param name="length">要读取的字节数</param>
/// <returns>文件内容</returns>
public static byte[] DownloadFile(StorageNode storageNode, string fileName, long offset, long length)
{
FDFSRequest storageReqeust = DOWNLOAD_FILE.Instance.GetRequest(storageNode.EndPoint, offset, length, storageNode.GroupName, fileName);
DOWNLOAD_FILE.Response storageResponse = new DOWNLOAD_FILE.Response(storageReqeust.GetResponse());
return(storageResponse.Content);
}
/// <summary>
/// 获取文件信息
/// </summary>
/// <param name="storageNode">GetStorageNode方法返回的存储节点</param>
/// <param name="fileName">文件名</param>
/// <returns></returns>
public static FDFSFileInfo GetFileInfo(StorageNode storageNode, string fileName)
{
FDFSRequest storageReqeust = QUERY_FILE_INFO.Instance.GetRequest(storageNode.EndPoint, storageNode.GroupName, fileName);
FDFSFileInfo result = new FDFSFileInfo(storageReqeust.GetResponse());
return(result);
}
/// <summary>
/// 上传可以Append的文件
/// </summary>
/// <param name="storageNode">GetStorageNode方法返回的存储节点</param>
/// <param name="contentByte">文件内容</param>
/// <param name="fileExt">文件扩展名(注意:不包含".")</param>
/// <returns>文件名</returns>
public static string UploadAppenderFile(StorageNode storageNode, byte[] contentByte, string fileExt)
{
FDFSRequest storageReqeust = UPLOAD_APPEND_FILE.Instance.GetRequest(storageNode.EndPoint, storageNode.StorePathIndex, contentByte.Length, fileExt, contentByte);
UPLOAD_APPEND_FILE.Response storageResponse = new UPLOAD_APPEND_FILE.Response(storageReqeust.GetResponse());
return(storageResponse.FileName);
}
/// <summary>
/// 删除文件
/// </summary>
/// <param name="groupName">组名</param>
/// <param name="fileName">文件名</param>
public static void RemoveFile(string groupName, string fileName)
{
FDFSRequest trackerRequest = QUERY_UPDATE.Instance.GetRequest(groupName, fileName);
QUERY_UPDATE.Response trackerResponse = new QUERY_UPDATE.Response(trackerRequest.GetResponse());
IPEndPoint storeEndPoint = new IPEndPoint(IPAddress.Parse(trackerResponse.IPStr), trackerResponse.Port);
FDFSRequest storageReqeust = DELETE_FILE.Instance.GetRequest(storeEndPoint, groupName, fileName);
storageReqeust.GetResponse();
}
/// <summary>
/// 附加文件
/// </summary>
/// <param name="groupName">组名</param>
/// <param name="fileName">文件名</param>
/// <param name="contentByte">文件内容</param>
public static byte[] AppendFile(string groupName, string fileName, byte[] contentByte)
{
FDFSRequest trackerRequest = QUERY_UPDATE.Instance.GetRequest(groupName, fileName);
QUERY_UPDATE.Response trackerResponse = new QUERY_UPDATE.Response(trackerRequest.GetResponse());
IPEndPoint storeEndPoint = new IPEndPoint(IPAddress.Parse(trackerResponse.IPStr), trackerResponse.Port);
FDFSRequest storageReqeust = APPEND_FILE.Instance.GetRequest(storeEndPoint, fileName, contentByte);
return(storageReqeust.GetResponse());
}
/// <summary>
/// 上传从文件
/// </summary>
/// <param name="storageNode">GetStorageNode方法返回的存储节点</param>
/// <param name="contentByte">文件内容</param>
/// <param name="master_filename">主文件名</param>
/// <param name="prefix_name">从文件后缀</param>
/// <param name="fileExt">文件扩展名(注意:不包含".")</param>
/// <returns>文件名</returns>
public static string UploadSlaveFile(string groupName, byte[] contentByte, string master_filename, string prefix_name, string fileExt)
{
FDFSRequest trackerRequest = QUERY_UPDATE.Instance.GetRequest(groupName, master_filename);
QUERY_UPDATE.Response trackerResponse = new QUERY_UPDATE.Response(trackerRequest.GetResponse());
IPEndPoint storeEndPoint = new IPEndPoint(IPAddress.Parse(trackerResponse.IPStr), trackerResponse.Port);
FDFSRequest storageReqeust = UPLOAD_SLAVE_FILE.Instance.GetRequest(storeEndPoint, contentByte.Length, master_filename, prefix_name, fileExt, contentByte);
UPLOAD_FILE.Response storageResponse = new UPLOAD_FILE.Response(storageReqeust.GetResponse());
return(storageResponse.FileName);
}
/// <summary>
/// 上传文件到FastDFS
/// </summary>
/// <param name="storageNode"></param>
/// <param name="contentByte"></param>
/// <param name="fileExt"></param>
/// <param name="beginDelegate">上传前回调</param>
/// <param name="afterDelegate">上传后回调，参数为URL文件名</param>
/// <returns>返回短文件名</returns>
public static string UploadFile(StorageNode storageNode, byte[] contentByte, string fileExt, System.Action <string> beginDelegate, System.Action <string> afterDelegate)
{
if (null != beginDelegate)
{
beginDelegate(fileExt);
}
FDFSRequest storageReqeust = UPLOAD_FILE.Instance.GetRequest(storageNode.EndPoint, storageNode.StorePathIndex, contentByte.Length, fileExt, contentByte);
UPLOAD_FILE.Response storageResponse = new UPLOAD_FILE.Response(storageReqeust.GetResponse());
if (null != afterDelegate)
{
afterDelegate(GetFormatUrl(storageNode.EndPoint.Address.ToString(), storageNode.GroupName, storageResponse.FileName));
}
return(storageResponse.FileName);
}
/// <summary>
/// 获取存储节点,组名为空返回默认组
/// </summary>
/// <param name="groupName">组名</param>
/// <returns>存储节点实体类</returns>
public static StorageNode GetStorageNode(string groupName = null)
{
FDFSRequest trackerRequest = QUERY_STORE_WITH_GROUP_ONE.Instance.GetRequest(groupName);
QUERY_STORE_WITH_GROUP_ONE.Response trackerResponse = new QUERY_STORE_WITH_GROUP_ONE.Response(trackerRequest.GetResponse());
IPEndPoint storeEndPoint = new IPEndPoint(IPAddress.Parse(trackerResponse.IPStr), trackerResponse.Port);
if (groupName == null)
{
return(DefaultGroup);
}
StorageNode result = new StorageNode();
result.GroupName = trackerResponse.GroupName;
result.EndPoint = storeEndPoint;
result.StorePathIndex = trackerResponse.StorePathIndex;
return(result);
}