/// <summary>
/// query storage server stat info of the group
/// </summary>
/// <param name="trackerServer">the tracker server</param>
/// <param name="groupName">the group name of storage server</param>
/// <param name="storageIpAddr">the storage server ip address, can be null or empty</param>
/// <returns> storage server stat array, return null if fail</returns>
public StructStorageStat[] listStorages(TrackerServer trackerServer,
string groupName, string storageIpAddr)
{
byte[] header;
byte[] bGroupName;
byte[] bs;
int len;
Connection connection;
if (trackerServer == null)
{
trackerServer = getTrackerServer();
if (trackerServer == null)
{
return(null);
}
}
connection = trackerServer.getConnection();
Stream outStream = connection.getOutputStream();
try
{
bs = ClientGlobal.g_charset.GetBytes(groupName);
bGroupName = new byte[ProtoCommon.FDFS_GROUP_NAME_MAX_LEN];
if (bs.Length <= ProtoCommon.FDFS_GROUP_NAME_MAX_LEN)
{
len = bs.Length;
}
else
{
len = ProtoCommon.FDFS_GROUP_NAME_MAX_LEN;
}
Arrays.fill(bGroupName, (byte)0);
Array.Copy(bs, 0, bGroupName, 0, len);
int ipAddrLen;
byte[] bIpAddr;
if (storageIpAddr != null && storageIpAddr.Length > 0)
{
bIpAddr = ClientGlobal.g_charset.GetBytes(storageIpAddr);
if (bIpAddr.Length < ProtoCommon.FDFS_IPADDR_SIZE)
{
ipAddrLen = bIpAddr.Length;
}
else
{
ipAddrLen = ProtoCommon.FDFS_IPADDR_SIZE - 1;
}
}
else
{
bIpAddr = null;
ipAddrLen = 0;
}
header = ProtoCommon.packHeader(ProtoCommon.TRACKER_PROTO_CMD_SERVER_LIST_STORAGE, ProtoCommon.FDFS_GROUP_NAME_MAX_LEN + ipAddrLen, (byte)0);
byte[] wholePkg = new byte[header.Length + bGroupName.Length + ipAddrLen];
Array.Copy(header, 0, wholePkg, 0, header.Length);
Array.Copy(bGroupName, 0, wholePkg, header.Length, bGroupName.Length);
if (ipAddrLen > 0)
{
Array.Copy(bIpAddr, 0, wholePkg, header.Length + bGroupName.Length, ipAddrLen);
}
outStream.Write(wholePkg, 0, wholePkg.Length);
ProtoCommon.RecvPackageInfo pkgInfo = ProtoCommon.recvPackage(connection.getInputStream(),
ProtoCommon.TRACKER_PROTO_CMD_RESP, -1);
this.errno = pkgInfo.errno;
if (pkgInfo.errno != 0)
{
return(null);
}
ProtoStructDecoder <StructStorageStat> decoder = new ProtoStructDecoder <StructStorageStat>();
return(decoder.decode(pkgInfo.body, StructStorageStat.getFieldsTotalSize()));
}
catch (IOException ex)
{
try
{
connection.close();
}
catch (IOException ex1)
{
throw ex1;
}
throw ex;
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
this.errno = ProtoCommon.ERR_NO_EINVAL;
return(null);
}
finally
{
if (connection != null)
{
try
{
connection.release();
}
catch
{
}
}
}
}
/// <summary>
/// list groups
/// </summary>
/// <param name="trackerServer">the tracker server</param>
/// <returns> group stat array, return null if fail</returns>
public StructGroupStat[] listGroups(TrackerServer trackerServer)
{
byte[] header;
//string ip_addr;
//int port;
//byte cmd;
//int out_len;
//byte store_path;
Connection connection;
if (trackerServer == null)
{
trackerServer = getTrackerServer();
if (trackerServer == null)
{
return(null);
}
}
connection = trackerServer.getConnection();
Stream outStream = connection.getOutputStream();
try
{
header = ProtoCommon.packHeader(ProtoCommon.TRACKER_PROTO_CMD_SERVER_LIST_GROUP, 0, (byte)0);
outStream.Write(header, 0, header.Length);
ProtoCommon.RecvPackageInfo pkgInfo = ProtoCommon.recvPackage(connection.getInputStream(),
ProtoCommon.TRACKER_PROTO_CMD_RESP, -1);
this.errno = pkgInfo.errno;
if (pkgInfo.errno != 0)
{
return(null);
}
ProtoStructDecoder <StructGroupStat> decoder = new ProtoStructDecoder <StructGroupStat>();
return(decoder.decode(pkgInfo.body, StructGroupStat.getFieldsTotalSize()));
}
catch (IOException ex)
{
try
{
connection.close();
}
catch (IOException ex1)
{
throw ex1;
}
finally
{
connection = null;
}
throw ex;
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
this.errno = ProtoCommon.ERR_NO_EINVAL;
return(null);
}
finally
{
if (connection != null)
{
try
{
connection.release();
}
catch
{
}
}
}
}