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1   package org.apache.turbine.services.intake.model;
2   
3   /*
4    * Copyright 2001-2005 The Apache Software Foundation.
5    *
6    * Licensed under the Apache License, Version 2.0 (the "License")
7    * you may not use this file except in compliance with the License.
8    * You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  
19  import org.apache.commons.lang.StringUtils;
20  
21  import org.apache.torque.om.ComboKey;
22  
23  import org.apache.turbine.services.intake.IntakeException;
24  import org.apache.turbine.services.intake.xmlmodel.XmlField;
25  
26  /***
27   * @author <a href="mailto:jmcnally@collab.net">John McNally</a>
28   * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a>
29   * @author <a href="mailto:quintonm@bellsouth.net">Quinton McCombs</a>
30   * @version $Id: ComboKeyField.java 264148 2005-08-29 14:21:04Z henning $
31   */
32  public class ComboKeyField
33          extends Field
34  {
35      /***
36       * Constructor.
37       *
38       * @param field xml field definition object
39       * @param group xml group definition object
40       * @throws IntakeException thrown by superclass
41       */
42      public ComboKeyField(XmlField field, Group group)
43              throws IntakeException
44      {
45          super(field, group);
46      }
47  
48      /***
49       * Sets the default value for a ComboKey field
50       *
51       * @param prop Parameter for the default values
52       */
53      public void setDefaultValue(String prop)
54      {
55          defaultValue = null;
56  
57          if (prop == null)
58          {
59              return;
60          }
61  
62          defaultValue = new ComboKey(prop);
63      }
64  
65      /***
66       * Set the empty Value. This value is used if Intake
67       * maps a field to a parameter returned by the user and
68       * the corresponding field is either empty (empty string)
69       * or non-existant.
70       *
71       * @param prop The value to use if the field is empty.
72       */
73      public void setEmptyValue(String prop)
74      {
75          emptyValue = null;
76  
77          if (prop == null)
78          {
79              return;
80          }
81  
82          emptyValue = new ComboKey(prop);
83      }
84  
85      /***
86       * Sets the value of the field from data in the parser.
87       */
88      protected void doSetValue()
89      {
90          if (isMultiValued)
91          {
92              String[] inputs = parser.getStrings(getKey());
93              ComboKey[] values = new ComboKey[inputs.length];
94              for (int i = 0; i < inputs.length; i++)
95              {
96                  values[i] = StringUtils.isNotEmpty(inputs[i])
97                          ? new ComboKey(inputs[i]) : (ComboKey) getEmptyValue();
98              }
99              setTestValue(values);
100         }
101         else
102         {
103             String val = parser.getString(getKey());
104             setTestValue(StringUtils.isNotEmpty(val) ? new ComboKey(val) : (ComboKey) getEmptyValue());
105         }
106     }
107 }