content: /*
   * Copyright (c) 2017, Andreas Fagschlunger. 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.
   *
   * 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 THE COPYRIGHT OWNER OR
   * CONTRIBUTORS 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.
   */
  
  package at.o2xfs.xfs.service.idc.cmd;
  
  import java.util.ArrayList;
  import java.util.EnumSet;
  import java.util.List;
  import java.util.Set;
  
  import at.o2xfs.log.Logger;
  import at.o2xfs.log.LoggerFactory;
  import at.o2xfs.win32.DWORD;
  import at.o2xfs.win32.Pointer;
  import at.o2xfs.win32.ZList;
  import at.o2xfs.xfs.WFSResult;
  import at.o2xfs.xfs.XfsCancelledException;
  import at.o2xfs.xfs.XfsException;
  import at.o2xfs.xfs.idc.DataSource;
  import at.o2xfs.xfs.idc.IdcExecuteCommand;
  import at.o2xfs.xfs.idc.IdcMessage;
  import at.o2xfs.xfs.v3_00.idc.CardData3;
  import at.o2xfs.xfs.service.XfsServiceManager;
  import at.o2xfs.xfs.service.cmd.AbstractAsyncCommand;
  import at.o2xfs.xfs.service.cmd.EventQueue;
  import at.o2xfs.xfs.service.cmd.XfsCommand;
  import at.o2xfs.xfs.service.cmd.XfsExecuteCommand;
  import at.o2xfs.xfs.service.events.XfsEventNotification;
  import at.o2xfs.xfs.service.idc.IDCService;
  import at.o2xfs.xfs.service.idc.IdcFactory;
  import at.o2xfs.xfs.util.Bitmask;
  
  public class ReadCardCommand extends AbstractAsyncCommand<ReadCardListener> implements XfsEventNotification {
  
  	private final static Logger LOG = LoggerFactory.getLogger(ReadCardCommand.class);
  
  	private final XfsServiceManager serviceManager = XfsServiceManager.getInstance();
  
  	private final IDCService idcService;
  
  	private Set<DataSource> readData = null;
  
  	private XfsCommand xfsCommand = null;
  
  	private final EventQueue eventQueue;
  
  	public ReadCardCommand(final IDCService idcService) {
  		if (idcService == null) {
  			throw new IllegalArgumentException("idcService must not be null");
  		}
  		this.idcService = idcService;
  		eventQueue = new EventQueue(this);
  		readData = EnumSet.noneOf(DataSource.class);
  	}
  
  	public void addReadData(final DataSource idcTrack) {
  		readData.add(idcTrack);
  	}
  
  	private void notifyCardInserted() {
  		for (final ReadCardListener listener : commandListeners) {
  			listener.cardInserted();
  		}
  	}
  
  	private void notifyCardInvalid() {
  		for (final ReadCardListener listener : commandListeners) {
  			listener.cardInvalid();
  		}
  	}
  
  	private void notifyCardRead(final List<CardData3> cardData) {
  		for (final ReadCardListener listener : commandListeners) {
  			listener.cardRead(cardData);
  
  		}
  	}
  
  	@Override
  	protected void doExecute() {
  		final String method = "doExecute()";
  		xfsCommand = new XfsExecuteCommand<>(idcService, IdcExecuteCommand.READ_RAW_DATA,
  				new DWORD(Bitmask.of(readData)));
  		try {
  			xfsCommand.execute(eventQueue);
  		} catch (final XfsException e) {
  			if (LOG.isErrorEnabled()) {
  				LOG.error(method, "Error executing XfsCommand: " + xfsCommand, e);
  			}
  			notifyCommandFailed(e);
  		}
  	}
  
  	@Override
  	public void cancel() {
  		if (xfsCommand == null) {
  			return;
  		}
  		try {
  			xfsCommand.cancel();
  		} catch (final XfsException e) {
  			final String method = "cancel()";
  			if (LOG.isErrorEnabled()) {
  				LOG.error(method, "", e);
  			}
  		}
  	}
  
  	@Override
  	public void fireIntermediateEvent(final WFSResult wfsResult) {
  		final String method = "fireIntermediateEvent(WFSResult)";
  		try {
  			if (LOG.isInfoEnabled()) {
  				LOG.info(method, "wfsResult=" + wfsResult);
  			}
  			final IdcMessage message = wfsResult.getEventID(IdcMessage.class);
  			switch (message) {
  			case EXEE_MEDIAINSERTED:
  				notifyCardInserted();
  				break;
  			case EXEE_INVALIDMEDIA:
  				notifyCardInvalid();
  				break;
  			default:
  				if (LOG.isWarnEnabled()) {
  					LOG.warn(method, "Unknown event: " + wfsResult);
  				}
  			}
  		} finally {
  			serviceManager.free(wfsResult);
  		}
  	}
  
  	@Override
  	public void fireOperationCompleteEvent(final WFSResult wfsResult) {
  		final String method = "fireOperationCompleteEvent(WFSResult)";
  		try {
  			if (LOG.isDebugEnabled()) {
  				LOG.debug(method, "wfsResult=" + wfsResult);
  			}
  			XfsException.throwFor(wfsResult.getResult());
  			final List<CardData3> cardDataList = new ArrayList<CardData3>();
  			final ZList zList = new ZList(wfsResult.getResults());
  			for (final Pointer pCardData : zList) {
  				final CardData3 cardData = IdcFactory.create(idcService.getXfsVersion(), pCardData, CardData3.class);
  				if (LOG.isDebugEnabled()) {
  					LOG.debug(method, "cardData=" + cardData);
  				}
  				cardDataList.add(cardData);
  			}
  			notifyCardRead(cardDataList);
  			notifyCommandSuccessful();
  		} catch (XfsCancelledException e) {
  			notifyCommandCancelled();
  		} catch (XfsException e) {
  			notifyCommandFailed(e);
  		} finally {
  			serviceManager.free(wfsResult);
  		}
  	}
  }
  