/** {@inheritDoc} */
public final void execute() throws InternetSCSIException {
final ProtocolDataUnit protocolDataUnit =
protocolDataUnitFactory.create(
false,
true,
OperationCode.SCSI_COMMAND,
connection.getSetting(OperationalTextKey.HEADER_DIGEST),
connection.getSetting(OperationalTextKey.DATA_DIGEST));
final SCSICommandParser scsi =
(SCSICommandParser) protocolDataUnit.getBasicHeaderSegment().getParser();
scsi.setReadExpectedFlag(false);
scsi.setWriteExpectedFlag(true);
scsi.setTaskAttributes(taskAttributes);
scsi.setExpectedDataTransferLength(expectedDataTransferLength);
final int maxRecvDataSegmentLength =
connection.getSettingAsInt(OperationalTextKey.MAX_RECV_DATA_SEGMENT_LENGTH);
scsi.setCommandDescriptorBlock(
SCSICommandDescriptorBlockParser.createWriteMessage(logicalBlockAddress, transferLength));
final IDataSegment dataSegment =
DataSegmentFactory.create(
buffer,
bufferPosition,
expectedDataTransferLength,
DataSegmentFormat.BINARY,
maxRecvDataSegmentLength);
final IDataSegmentIterator iterator = dataSegment.iterator();
int bufferOffset = 0;
if (connection.getSettingAsBoolean(OperationalTextKey.IMMEDIATE_DATA)) {
final int min =
Math.min(
maxRecvDataSegmentLength,
connection.getSettingAsInt(OperationalTextKey.FIRST_BURST_LENGTH));
protocolDataUnit.setDataSegment(iterator.next(min));
bufferOffset += min;
}
connection.send(protocolDataUnit);
if (!connection.getSettingAsBoolean(OperationalTextKey.INITIAL_R2T) && iterator.hasNext()) {
connection.nextState(
new WriteFirstBurstState(connection, iterator, 0xFFFFFFFF, 0, bufferOffset));
} else {
connection.nextState(new WriteSecondResponseState(connection, iterator, 0, bufferOffset));
}
super.stateFollowing = true;
// return true;
}
