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 at.o2xfs.log.Logger;
  import at.o2xfs.log.LoggerFactory;
  import at.o2xfs.xfs.WFSResult;
  import at.o2xfs.xfs.XfsException;
  import at.o2xfs.xfs.idc.IdcExecuteCommand;
  import at.o2xfs.xfs.idc.IdcMessage;
  import at.o2xfs.xfs.v3_00.idc.Status3;
  import at.o2xfs.xfs.v3_00.idc.RetainCard3;
  import at.o2xfs.xfs.service.XfsServiceManager;
  import at.o2xfs.xfs.service.cmd.AbstractAsyncCommand;
  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;
  
  public class RetainCardCommand extends AbstractAsyncCommand<RetainCardCommandListener> implements XfsEventNotification {
  
  	private static final Logger LOG = LoggerFactory.getLogger(RetainCardCommand.class);
  
  	private final IDCService idcService;
  
  	private final XfsCommand retainCardCommand;
  
  	private boolean cardRetained = false;
  
  	private int cardsRetained = 0;
  
  	public RetainCardCommand(final IDCService idcService) {
  		this.idcService = idcService;
  		retainCardCommand = new XfsExecuteCommand<>(idcService, IdcExecuteCommand.RETAIN_CARD);
  	}
  
  	private void notifyCardRetained() {
  		for (final RetainCardCommandListener l : commandListeners) {
  			l.cardRetained();
  		}
  	}
  
  	@Override
  	protected void doExecute() {
  		final String method = "doExecute()";
  		try {
  			final Status3 status = new IDCStatusCommand(idcService).call();
  			cardsRetained = status.getCards();
  			retainCardCommand.execute(this);
  		} catch (final Exception e) {
  			if (LOG.isErrorEnabled()) {
  				LOG.error(method, "Error executing XfsCommand: " + retainCardCommand, e);
  			}
  			notifyCommandFailed(e);
  		}
  	}
  
  	@Override
  	public void cancel() {
  		final String method = "cancel()";
  		try {
  			retainCardCommand.cancel();
  		} catch (final XfsException e) {
  			if (LOG.isErrorEnabled()) {
  				LOG.error(method, "Error cancelling retain card", e);
  			}
  		}
  	}
  
  	@Override
  	public void fireIntermediateEvent(final WFSResult wfsResult) {
  		final String method = "fireIntermediateEvent(WFSResult)";
  		try {
  			if (LOG.isDebugEnabled()) {
  				LOG.debug(method, "wfsResult=" + wfsResult);
  			}
  			final IdcMessage eventID = wfsResult.getEventID(IdcMessage.class);
  			switch (eventID) {
  			case EXEE_MEDIARETAINED:
  				synchronized (this) {
  					if (!cardRetained) {
  						cardRetained = true;
  						notifyCardRetained();
  					}
  				}
  				break;
  			default:
  				if (LOG.isWarnEnabled()) {
  					LOG.warn(method, "Unknown intermediate event: " + wfsResult);
  				}
  				break;
  			}
  		} finally {
  			if (wfsResult != null) {
  				XfsServiceManager.getInstance().free(wfsResult);
  			}
  		}
  	}
  
  	@Override
  	public void fireOperationCompleteEvent(final WFSResult wfsResult) {
  		final String method = "fireOperationCompleteEvent(WFSResult)";
  		try {
  			XfsException.throwFor(wfsResult.getResult());
  			final RetainCard3 retainCard = IdcFactory.create(idcService.getXfsVersion(), wfsResult.getResults(),
  					RetainCard3.class);
  			if (LOG.isInfoEnabled()) {
  				LOG.info(method, retainCard);
  			}
  			if (retainCard.getCount() <= cardsRetained) {
  				notifyCommandFailed(
  						new Exception("Card retained: before=" + cardsRetained + ",after=" + retainCard.getCount()));
  			} else {
  				synchronized (this) {
  					if (!cardRetained) {
  						notifyCardRetained();
  					}
  				}
  				notifyCommandSuccessful();
  			}
  		} catch (final XfsException e) {
  			if (LOG.isErrorEnabled()) {
  				LOG.error(method, "Retaining card failed", e);
  			}
  			notifyCommandFailed(e);
  		} finally {
  			if (wfsResult != null) {
  				XfsServiceManager.getInstance().free(wfsResult);
  			}
  		}
  
  	}
  
  }
  