EscapeHandler.java

  1. /*
  2.  *
  3.  * The DbUnit Database Testing Framework
  4.  * Copyright (C)2002-2004, DbUnit.org
  5.  *
  6.  * This library is free software; you can redistribute it and/or
  7.  * modify it under the terms of the GNU Lesser General Public
  8.  * License as published by the Free Software Foundation; either
  9.  * version 2.1 of the License, or (at your option) any later version.
  10.  *
  11.  * This library is distributed in the hope that it will be useful,
  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14.  * Lesser General Public License for more details.
  15.  *
  16.  * You should have received a copy of the GNU Lesser General Public
  17.  * License along with this library; if not, write to the Free Software
  18.  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19.  *
  20.  */

  21. package org.dbunit.dataset.common.handlers;

  22. import org.slf4j.Logger;
  23. import org.slf4j.LoggerFactory;

  24. /**
  25.  * @author fede
  26.  * @author Last changed by: $Author$
  27.  * @version $Revision$ $Date$
  28.  * @since 2.2 (Sep 12, 2004)
  29.  */
  30. public class EscapeHandler extends AbstractPipelineComponent {

  31.     /**
  32.      * Logger for this class
  33.      */
  34.     private static final Logger logger = LoggerFactory.getLogger(EscapeHandler.class);

  35.     public static final char DEFAULT_ESCAPE_CHAR = '\\';

  36.     private EscapeHandler() {
  37.     }

  38.     public static final PipelineComponent ACCEPT() {
  39.         logger.debug("ACCEPT() - start");
  40.         return createPipelineComponent(new EscapeHandler(), new ACCEPT());
  41.     }

  42.     // @todo: make sense?
  43.     public static final PipelineComponent IGNORE() {
  44.         logger.debug("IGNORE() - start");
  45.         return createPipelineComponent(new EscapeHandler(), new IGNORE());
  46.     }

  47.     public static final PipelineComponent ESCAPE() {
  48.         logger.debug("ESCAPE() - start");
  49.         return createPipelineComponent(new EscapeHandler(), new ESCAPE());
  50.     }

  51.     public boolean canHandle(char c) throws IllegalInputCharacterException {
  52.         if(logger.isDebugEnabled())
  53.             logger.debug("canHandle(c={}) - start", String.valueOf(c));

  54.         PipelineConfig pipelineConfig = this.getPipelineConfig();
  55.         if (c == pipelineConfig.getEscapeChar()) {
  56.             return true;
  57.         }
  58.         return false;
  59.     }

  60.     static private class ESCAPE extends Helper {

  61.         /**
  62.          * Logger for this class
  63.          */
  64.         private static final Logger logger = LoggerFactory.getLogger(ESCAPE.class);

  65.         public void helpWith(char c) {
  66.             if(logger.isDebugEnabled())
  67.                 logger.debug("helpWith(c={}) - start", String.valueOf(c));

  68.             getHandler().getPipeline().putFront(EnforceHandler.ENFORCE(
  69.                     new PipelineComponent [] {
  70.                         QuoteHandler.ACCEPT(), EscapeHandler.ACCEPT()
  71.                     }
  72.             ));
  73.             // ignore the char
  74.         }
  75.     }

  76. }