org.jscsi.initiator.connection.state

Class CapacityRequestState

java.lang.Object

org.jscsi.initiator.connection.state.CapacityRequestState

All Implemented Interfaces:

IState

public final class CapacityRequestState
extends Object

CapacityRequestState

This state handles a Capacity Request to retrieve the block size and the size of the iSCSI Device.

Author:

Volker Wildi

Field Summary

Fields

Modifier and Type	Field and Description
protected Connection	connection The context connection used by all message kinds.
protected static org.slf4j.Logger	LOGGER The Logger interface.
protected ProtocolDataUnitFactory	protocolDataUnitFactory Factory to create the ProtocolDataUnit instances.
protected boolean	stateFollowing boolean to mark following states.

Constructor Summary

Constructors

Constructor and Description
CapacityRequestState(Connection initConnection, TargetCapacityInformations initCapacityInformation, SCSICommandParser.TaskAttributes initTaskAttributes) Constructor to create a new, empty CapacityRequestState instance.

Method Summary

Modifier and Type	Method and Description
void	execute() This method is always invoked, when a request message must be send or response message must be received and then parsed.
Exception	isCorrect(ProtocolDataUnit protocolDataUnit) This method checks the correctness of the given ProtocolDataUnit instance within the current state of a connection.
boolean	nextStateFollowing() This method shows if another state is following this one.

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

protected static final org.slf4j.Logger LOGGER

The Logger interface.

connection

protected final Connection connection

The context connection used by all message kinds.

protocolDataUnitFactory

protected final ProtocolDataUnitFactory protocolDataUnitFactory

Factory to create the ProtocolDataUnit instances.

stateFollowing

protected boolean stateFollowing

boolean to mark following states.

Constructor Detail

CapacityRequestState

public CapacityRequestState(Connection initConnection,
                            TargetCapacityInformations initCapacityInformation,
                            SCSICommandParser.TaskAttributes initTaskAttributes)

Constructor to create a new, empty CapacityRequestState instance.

Parameters:

initConnection - This is the connection, which is used for the network transmission.

initCapacityInformation - Store the informations about that iSCSI Device in this instance.

initTaskAttributes - The task attributes, which are used with task.

Method Detail

execute

public final void execute()
                   throws InternetSCSIException

This method is always invoked, when a request message must be send or response message must be received and then parsed.

Throws:

InternetSCSIException - if any violation of the iSCSI Standard (RfC3720) has emerged.

isCorrect

public Exception isCorrect(ProtocolDataUnit protocolDataUnit)

This method checks the correctness of the given ProtocolDataUnit instance within the current state of a connection.

Specified by:

isCorrect in interface IState

Parameters:

protocolDataUnit - The ProtocolDataUnit instance to check.

Returns:

Exception if any problem occured with the PDU, null otherwise.

nextStateFollowing

public boolean nextStateFollowing()

This method shows if another state is following this one.

Specified by:

nextStateFollowing in interface IState

Returns:

true, if another state must follow this state. Else an final state is reached.