ostore.archive
Class GenerateFragsRespMsg

java.lang.Object
  |
  +--dd.api.DDRouteMsg
        |
        +--ostore.archive.GenerateFragsRespMsg

All Implemented Interfaces:

QueueElementIF, QuickSerializable

public class GenerateFragsRespMsg

extends DDRouteMsg

GenerateFragsRespMsg is an event class that generates Fragments for a version of an object or checkpoints the version.

USAGE

The required field are thisRootBlock (CacheableIdentity of root block), numFragments (number of Fragments generated for block), inverseRate (inverse rate of encoding), erasureType (code for the type of erasure code to use).

NOTE: for copy-on-write only the blocks with null GUID's will be fragmented (archived).

Version:

$Id: GenerateFragsRespMsg.java,v 1.14 2004/05/13 20:13:06 hweather Exp $

Author:

Hakim Weatherspoon

See Also:

GenerateFragsChkptResp, GenerateFragsRespMsg, Fragment, Erasure

Field Summary

Fields inherited from class dd.api.DDRouteMsg

dd_intermediate_upcall, hopCount, inbound, one_hop, peer, recursive_route, TTL

Constructor Summary

GenerateFragsRespMsg()
Constructor: Initializes instance variables to null.

GenerateFragsRespMsg(InputBuffer buffer)
Constructs a GenerateFragsRespMsg from its serialized form.

GenerateFragsRespMsg(SecureHash requestorGuid, GenerateFragsChkptResp resp, SecureHash identifier, SecureHash aguid, boolean recursive, boolean dd_intermediate_upcall, boolean one_hop)
Constructor.

Method Summary

SecureHash	getAguid() getAguid returns the A-GUID of the object.
SecureHash	getIdentifier() getIdentifier returns the unique id of node (i.e. nodeGuid) or app (e.g.
GenerateFragsChkptResp	getResp() getResp returns the GenerateFragsChkptResp
void	serialize(OutputBuffer buffer) Specified by ostore.util.QuickSerializable
String	toString() Specified by java.lang.Object

Methods inherited from class java.lang.Object

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

Constructor Detail

GenerateFragsRespMsg

public GenerateFragsRespMsg()

Constructor: Initializes instance variables to null.

GenerateFragsRespMsg

public GenerateFragsRespMsg(SecureHash requestorGuid,
                            GenerateFragsChkptResp resp,
                            SecureHash identifier,
                            SecureHash aguid,
                            boolean recursive,
                            boolean dd_intermediate_upcall,
                            boolean one_hop)

Constructor. Initializes the data in this GenerateFragsRespMsg.

Parameters:

requestorGuid - The requestors GUID.

resp - GenerateFragsChkptResp

identifier - unique id of node (i.e. nodeGuid) or app (e.g. SHA1Hash(AppId + nodeGuid) requesting service from the ArchiverStage.

aguid - A-GUID of object.

GenerateFragsRespMsg

public GenerateFragsRespMsg(InputBuffer buffer)
                     throws QSException

Constructs a GenerateFragsRespMsg from its serialized form.

Parameters:

buffer - serialized form of object.

Method Detail

getResp

public GenerateFragsChkptResp getResp()

getResp returns the GenerateFragsChkptResp

Returns:

GenerateFragsChkptResp

getIdentifier

public SecureHash getIdentifier()

getIdentifier returns the unique id of node (i.e. nodeGuid) or app (e.g. SHA1Hash(AppId + nodeGuid) requesting service from the ArchiverStage.

Returns:

the unique id of node (i.e. nodeGuid) or app (e.g. SHA1Hash(AppId + nodeGuid) requesting service from the ArchiverStage.

getAguid

public SecureHash getAguid()

getAguid returns the A-GUID of the object.

Returns:

A-GUID of object.

serialize

public void serialize(OutputBuffer buffer)

Specified by ostore.util.QuickSerializable

Specified by:

serialize in interface QuickSerializable

Overrides:

serialize in class DDRouteMsg

Parameters:

buffer - the output buffer to add the object to

toString

public String toString()

Specified by java.lang.Object

Overrides:

toString in class Object