org.apache.hadoop.hdfs.nfs.nfs3
Class Nfs3Utils

java.lang.Object
  org.apache.hadoop.hdfs.nfs.nfs3.Nfs3Utils

public class Nfs3Utils
extends Object

Utility/helper methods related to NFS

Field Summary

static String	INODEID_PATH_PREFIX
static String	READ_RPC_END
static String	READ_RPC_START
static String	WRITE_RPC_END
static String	WRITE_RPC_START

Constructor Summary

Nfs3Utils()

Method Summary

static long	bytesToLong(byte[] data)
static org.apache.hadoop.nfs.nfs3.response.WccData	createWccData(org.apache.hadoop.nfs.nfs3.response.WccAttr preOpAttr, org.apache.hadoop.hdfs.DFSClient dfsClient, String fileIdPath, org.apache.hadoop.nfs.nfs3.IdUserGroup iug)
static int	getAccessRights(int mode, int type)
static int	getAccessRightsForUserGroup(int uid, int gid, org.apache.hadoop.nfs.nfs3.Nfs3FileAttributes attr)
static org.apache.hadoop.nfs.nfs3.Nfs3FileAttributes	getFileAttr(org.apache.hadoop.hdfs.DFSClient client, String fileIdPath, org.apache.hadoop.nfs.nfs3.IdUserGroup iug)
static String	getFileIdPath(org.apache.hadoop.nfs.nfs3.FileHandle handle)
static String	getFileIdPath(long fileId)
static org.apache.hadoop.hdfs.protocol.HdfsFileStatus	getFileStatus(org.apache.hadoop.hdfs.DFSClient client, String fileIdPath)
static org.apache.hadoop.nfs.nfs3.Nfs3FileAttributes	getNfs3FileAttrFromFileStatus(org.apache.hadoop.hdfs.protocol.HdfsFileStatus fs, org.apache.hadoop.nfs.nfs3.IdUserGroup iug)
static org.apache.hadoop.nfs.nfs3.response.WccAttr	getWccAttr(org.apache.hadoop.hdfs.DFSClient client, String fileIdPath)
static org.apache.hadoop.nfs.nfs3.response.WccAttr	getWccAttr(org.apache.hadoop.nfs.nfs3.Nfs3FileAttributes attr)
static byte[]	longToByte(long v)
static void	writeChannel(org.jboss.netty.channel.Channel channel, org.apache.hadoop.oncrpc.XDR out, int xid) Send a write response to the netty network socket channel
static void	writeChannelCommit(org.jboss.netty.channel.Channel channel, org.apache.hadoop.oncrpc.XDR out, int xid)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

INODEID_PATH_PREFIX

public static final String INODEID_PATH_PREFIX

See Also:

Constant Field Values

READ_RPC_START

public static final String READ_RPC_START

See Also:

Constant Field Values

READ_RPC_END

public static final String READ_RPC_END

See Also:

Constant Field Values

WRITE_RPC_START

public static final String WRITE_RPC_START

See Also:

Constant Field Values

WRITE_RPC_END

public static final String WRITE_RPC_END

See Also:

Constant Field Values

Constructor Detail

Nfs3Utils

public Nfs3Utils()

Method Detail

getFileIdPath

public static String getFileIdPath(org.apache.hadoop.nfs.nfs3.FileHandle handle)

getFileIdPath

public static String getFileIdPath(long fileId)

getFileStatus

public static org.apache.hadoop.hdfs.protocol.HdfsFileStatus getFileStatus(org.apache.hadoop.hdfs.DFSClient client,
                                                                           String fileIdPath)
                                                                    throws IOException

Throws:

IOException

getNfs3FileAttrFromFileStatus

public static org.apache.hadoop.nfs.nfs3.Nfs3FileAttributes getNfs3FileAttrFromFileStatus(org.apache.hadoop.hdfs.protocol.HdfsFileStatus fs,
                                                                                          org.apache.hadoop.nfs.nfs3.IdUserGroup iug)

getFileAttr

public static org.apache.hadoop.nfs.nfs3.Nfs3FileAttributes getFileAttr(org.apache.hadoop.hdfs.DFSClient client,
                                                                        String fileIdPath,
                                                                        org.apache.hadoop.nfs.nfs3.IdUserGroup iug)
                                                                 throws IOException

Throws:

IOException

getWccAttr

public static org.apache.hadoop.nfs.nfs3.response.WccAttr getWccAttr(org.apache.hadoop.hdfs.DFSClient client,
                                                                     String fileIdPath)
                                                              throws IOException

Throws:

IOException

getWccAttr

public static org.apache.hadoop.nfs.nfs3.response.WccAttr getWccAttr(org.apache.hadoop.nfs.nfs3.Nfs3FileAttributes attr)

createWccData

public static org.apache.hadoop.nfs.nfs3.response.WccData createWccData(org.apache.hadoop.nfs.nfs3.response.WccAttr preOpAttr,
                                                                        org.apache.hadoop.hdfs.DFSClient dfsClient,
                                                                        String fileIdPath,
                                                                        org.apache.hadoop.nfs.nfs3.IdUserGroup iug)
                                                                 throws IOException

Throws:

IOException

writeChannel

public static void writeChannel(org.jboss.netty.channel.Channel channel,
                                org.apache.hadoop.oncrpc.XDR out,
                                int xid)

Send a write response to the netty network socket channel

writeChannelCommit

public static void writeChannelCommit(org.jboss.netty.channel.Channel channel,
                                      org.apache.hadoop.oncrpc.XDR out,
                                      int xid)

getAccessRights

public static int getAccessRights(int mode,
                                  int type)

getAccessRightsForUserGroup

public static int getAccessRightsForUserGroup(int uid,
                                              int gid,
                                              org.apache.hadoop.nfs.nfs3.Nfs3FileAttributes attr)

bytesToLong

public static long bytesToLong(byte[] data)

longToByte

public static byte[] longToByte(long v)