/**
* Copyright (c) 2012, University of Konstanz, Distributed Systems Group
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the University of Konstanz nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
//Cleversafe open-source code header - Version 1.1 - December 1, 2006
//
//Cleversafe Dispersed Storage(TM) is software for secure, private and
//reliable storage of the world's data using information dispersal.
//
//Copyright (C) 2005-2007 Cleversafe, Inc.
//
//This program is free software; you can redistribute it and/or
//modify it under the terms of the GNU General Public License
//as published by the Free Software Foundation; either version 2
//of the License, or (at your option) any later version.
//
//This program is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
//GNU General Public License for more details.
//
//You should have received a copy of the GNU General Public License
//along with this program; if not, write to the Free Software
//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
//USA.
//
//Contact Information:
// Cleversafe, 10 W. 35th Street, 16th Floor #84,
// Chicago IL 60616
// email: licensing@cleversafe.org
//
//END-OF-HEADER
//-----------------------
//@author: John Quigley <jquigley@cleversafe.com>
//@date: January 1, 2008
//---------------------
package org.jscsi.scsi.transport;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.HashMap;
import java.util.Random;
import org.apache.log4j.Logger;
import org.jscsi.core.scsi.Status;
import org.jscsi.scsi.protocol.sense.SenseData;
import org.jscsi.scsi.protocol.sense.SenseDataFactory;
import org.jscsi.scsi.target.Target;
public class TestTargetTransportPort implements TargetTransportPort
{
private static Logger _logger = Logger.getLogger(TestTargetTransportPort.class);
private Random rnd = new Random();
protected long deviceCapacity;
protected int blockSize;
private HashMap<Long, ByteBuffer> readDataMap = new HashMap<Long, ByteBuffer>();
private HashMap<Long, ByteBuffer> writeDataMap = new HashMap<Long, ByteBuffer>();
public TestTargetTransportPort(long deviceCapacity, int blockSize)
{
this.deviceCapacity = deviceCapacity;
this.blockSize = blockSize;
}
public boolean readData(Nexus nexus, long cmdRef, ByteBuffer output) throws InterruptedException
{
_logger.debug("servicing readData request: nexus: " + nexus + ", cmdRef: " + cmdRef);
assert this.readDataMap.containsKey(cmdRef) : "read data unavailable for crn: " + cmdRef;
output.put(this.readDataMap.get(cmdRef).array());
return true;
}
public void registerTarget(Target target)
{
_logger.debug("servicing registerTarget request");
}
public void removeTarget(String targetName) throws Exception
{
_logger.debug("servicing removeTarget request");
}
public void terminateDataTransfer(Nexus nexus, long commandReferenceNumber)
{
_logger.debug("servicing terminateDataTransfer request");
}
public boolean writeData(Nexus nexus, long cmdRef, ByteBuffer input) throws InterruptedException
{
_logger.debug("servicing writeData request: nexus: " + nexus + ", cmdRef: " + cmdRef);
ByteBuffer newbuf = ByteBuffer.allocate(input.limit() - input.position());
newbuf.put(input);
this.writeDataMap.put(cmdRef, newbuf);
return true;
}
public void writeResponse(
Nexus nexus,
long commandReferenceNumber,
Status status,
ByteBuffer senseData)
{
_logger.debug("servicing writeResponse request: nexus: " + nexus + ", cmdRef: "
+ commandReferenceNumber);
_logger.debug("response was status: " + status);
if (status.equals(Status.CHECK_CONDITION))
{
SenseData sense = null;
try
{
sense = new SenseDataFactory().decode(senseData);
}
catch (IOException e)
{
_logger.warn("I/O exception while decoding sense data");
}
_logger.error("sense data: " + sense);
}
}
@Override
public String toString()
{
return "<TestTargetTransportPort>";
}
/////////////////////////////////////////////////////////////////////////////
// utilities
public ByteBuffer createReadData(int numBlocks, long cmdRefNum)
{
byte[] data = new byte[numBlocks * this.blockSize];
this.rnd.nextBytes(data);
ByteBuffer buffData = ByteBuffer.wrap(data);
this.readDataMap.put(cmdRefNum, buffData);
return buffData;
}
public Nexus createNexus(long taskTag)
{
return new Nexus("TestInitiator", "TestTarget", 0, taskTag);
}
/////////////////////////////////////////////////////////////////////////////
// getters/setters
public HashMap<Long, ByteBuffer> getReadDataMap()
{
return readDataMap;
}
public HashMap<Long, ByteBuffer> getWriteDataMap()
{
return writeDataMap;
}
public ByteBuffer removeReadBuffer(long crn)
{
return this.readDataMap.remove(crn);
}
public ByteBuffer removeWriteBuffer(long crn)
{
return this.writeDataMap.remove(crn);
}
}