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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  
22  package org.dbunit.dataset.common.handlers;
23  
24  import org.slf4j.Logger;
25  import org.slf4j.LoggerFactory;
26  
27  /**
28   * @author fede
29   * @author Last changed by: $Author$
30   * @version $Revision$ $Date$
31   * @since 2.2 (Sep 12, 2004)
32   */
33  public class IsAlnumHandler extends AbstractPipelineComponent {
34  
35      /**
36       * Logger for this class
37       */
38      private static final Logger logger = LoggerFactory.getLogger(IsAlnumHandler.class);
39  
40      private IsAlnumHandler() 
41      {
42      }
43  
44      public static final PipelineComponent ACCEPT () {
45          logger.debug("ACCEPT() - start");
46          return createPipelineComponent(new IsAlnumHandler(), new ACCEPT());
47      }
48  
49      public static final PipelineComponent IGNORE () {
50          logger.debug("IGNORE() - start");
51          return createPipelineComponent(new IsAlnumHandler(), new IGNORE());
52      }
53  
54      public static final PipelineComponent QUOTE () {
55          logger.debug("QUOTE() - start");
56          return createPipelineComponent(new IsAlnumHandler(), new QUOTE());
57      }
58  
59  /*
60      public static final PipelineComponent UNQUOTE () {
61          return createPipelineComponent(new IsAlnumHandler(), new UNQUOTE());
62      }
63  */
64  
65  
66      public boolean canHandle(char c) throws IllegalInputCharacterException {
67          if(logger.isDebugEnabled())
68              logger.debug("canHandle(c={}) - start", String.valueOf(c));
69  
70          PipelineConfig pipelineConfig = this.getPipelineConfig();
71          if (c != pipelineConfig.getSeparatorChar()
72                  && !Character.isWhitespace(c)
73                  && c != pipelineConfig.getEscapeChar()) {
74              return true;
75          }
76          return false;
77      }
78  
79  
80      static protected class QUOTE extends Helper {
81  
82          /**
83           * Logger for this class
84           */
85          private static final Logger logger = LoggerFactory.getLogger(QUOTE.class);
86  
87  //        private boolean add = true;
88  
89          public void helpWith(char c) {
90              if(logger.isDebugEnabled())
91                  logger.debug("helpWith(c={}) - start", String.valueOf(c));
92              
93              getHandler().getPipeline().putFront(SeparatorHandler.ENDPIECE());
94              getHandler().getPipeline().putFront(IsAlnumHandler.ACCEPT());
95              getHandler().getPipeline().putFront(WhitespacesHandler.ACCEPT());
96              //getHandler().getPipeline().putFront(IsAlnumHandler.UNQUOTE());
97  
98              getHandler().accept(c);
99          }
100     }
101 
102     static protected class UNQUOTE extends Helper {
103 
104         /**
105          * Logger for this class
106          */
107         private static final Logger logger = LoggerFactory.getLogger(UNQUOTE.class);
108 
109 
110         public void helpWith(char c) {
111             if(logger.isDebugEnabled())
112                 logger.debug("helpWith(c={}) - start", String.valueOf(c));
113 
114             try {
115                 getHandler().getPipeline().removeFront();
116                 getHandler().getPipeline().removeFront();
117                 getHandler().getPipeline().removeFront();
118                 getHandler().getPipeline().removeFront();
119             } catch (PipelineException e) {
120                 throw new RuntimeException(e.getMessage());
121             }
122             // ignore the char
123         }
124     }
125 
126 }