/// <summary>
/// 上传文件
/// </summary>
/// <param name="groupName"></param>
/// <param name="content"></param>
/// <param name="fileExt">后缀</param>
/// <returns>文件名</returns>
public static string Upload(string groupName, byte[] content, string fileExt)
{
StorageNodeInfo storage = GetAvailableStorageNode(groupName);
if (fileExt.StartsWith("."))
{
fileExt = fileExt.TrimStart(new char[] { '.' });
}
return(new StorageCmds().UPLOAD_FILE(storage.EndPoint, storage.StorePathIndex, content.Length, fileExt, content));
}
/// <summary>
/// query which storage server to update the file
///
/// Reqeust
/// Cmd: TRACKER_PROTO_CMD_SERVICE_QUERY_UPDATE 103
/// Body:
/// @ FDFS_GROUP_NAME_MAX_LEN bytes: group name
/// @ filename bytes: filename
/// Response
/// Cmd: TRACKER_PROTO_CMD_RESP
/// Status: 0 right other wrong
/// Body:
/// @ FDFS_GROUP_NAME_MAX_LEN bytes: group name
/// @ IP_ADDRESS_SIZE - 1 bytes: storage server ip address
/// @ FDFS_PROTO_PKG_LEN_SIZE bytes: storage server port
/// </summary>
public StorageNodeInfo QUERY_UPDATE(string groupName, string serverFileName)
{
if (groupName.Length > Consts.FDFS_GROUP_NAME_MAX_LEN)
{
throw new Exception("GroupName is too long");
}
//连接
Connection connection = ConnectionManager.GetTrackerConnection();
//请求头和体
var fileNameBuffer = Helper.StringToByte(serverFileName);
int[] lengthes = new int[] { Consts.FDFS_GROUP_NAME_MAX_LEN, fileNameBuffer.Length };
IList <byte[]> contents = new byte[][] { Helper.StringToByte(groupName), fileNameBuffer };
Request req = new Request();
req.SetBody(lengthes, contents);
req.Header = new Header(lengthes.Sum(), Consts.TRACKER_PROTO_CMD_SERVICE_QUERY_UPDATE, 0);
byte[] res = req.Invoke(connection);
//解析结果
StorageNodeInfo node = new StorageNodeInfo();
//byte[] groupNameBuffer = new byte[Consts.FDFS_GROUP_NAME_MAX_LEN];
//Array.Copy(res, groupNameBuffer, Consts.FDFS_GROUP_NAME_MAX_LEN);
node.GroupName = groupName; //Helper.ByteToString(groupNameBuffer).TrimEnd('\0');
byte[] ipAddressBuffer = new byte[Consts.IP_ADDRESS_SIZE - 1];
Array.Copy(res, Consts.FDFS_GROUP_NAME_MAX_LEN, ipAddressBuffer, 0, Consts.IP_ADDRESS_SIZE - 1);
string strIp = new string(Config.Charset.GetChars(ipAddressBuffer)).TrimEnd('\0');
byte[] portBuffer = new byte[Consts.FDFS_PROTO_PKG_LEN_SIZE];
Array.Copy(res, Consts.FDFS_GROUP_NAME_MAX_LEN + Consts.IP_ADDRESS_SIZE - 1,
portBuffer, 0, Consts.FDFS_PROTO_PKG_LEN_SIZE);
int intPort = (int)Helper.BufferToLong(portBuffer, 0);
node.StorePathIndex = res[res.Length - 1];
node.EndPoint = new IPEndPoint(IPAddress.Parse(strIp), intPort);
return(node);
}
