Class Nfs3ReadRequest

java.lang.Object

com.emc.ecs.nfsclient.rpc.RpcRequest

com.emc.ecs.nfsclient.nfs.NfsRequestBase

com.emc.ecs.nfsclient.nfs.NfsReadRequest

com.emc.ecs.nfsclient.nfs.nfs3.Nfs3ReadRequest

All Implemented Interfaces:

NfsRequest

public class Nfs3ReadRequest
extends NfsReadRequest

The request, as specified by RFC 1813 (https://tools.ietf.org/html/rfc1813).

Procedure READ reads data from a file.

Field Summary

Fields inherited from class RpcRequest

CHARSET

Constructor Summary

Constructors

Constructor	Description
Nfs3ReadRequest(byte[] fileHandle, long offset, int size, Credential credential)	Creates the request, as specified by RFC 1813 (https://tools.ietf.org/html/rfc1813).

Method Summary

Methods inherited from class NfsReadRequest

marshalling, toString

Methods inherited from class NfsRequestBase

getErrorMessage, getFileHandle, getIpKey, startToString

Methods inherited from class RpcRequest

cloneFileHandle, isUsePrivilegedPort, setUsePrivilegedPort, trimFileName

Methods inherited from class Object

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

Constructor Details

Nfs3ReadRequest

public Nfs3ReadRequest(byte[] fileHandle,
 long offset,
 int size,
 Credential credential)
                throws FileNotFoundException

Creates the request, as specified by RFC 1813 (https://tools.ietf.org/html/rfc1813).

Procedure READ reads data from a file.

Parameters:

fileHandle - The file handle of the file from which data is to be read. This must identify a file system object of type, NF3REG.

offset - The position within the file at which the read is to begin. An offset of 0 means to read data starting at the beginning of the file. If offset is greater than or equal to the size of the file, the status, NFS3_OK, is returned with size set to 0 and eof set to true, subject to access permissions checking.

size - The number of bytes of data that are to be read. If size is 0, the READ will succeed and return 0 bytes of data, subject to access permissions checking. size must be less than or equal to the value of the rtmax field in the FSINFO reply structure for the file system that contains file. If greater, the server may return only rtmax bytes, resulting in a short read.

credential - The credential used for RPC authentication.

Throws:

FileNotFoundException