1 package org.apache.turbine.services.intake.model;
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22 import org.apache.turbine.services.intake.IntakeException;
23 import org.apache.turbine.services.intake.validator.ShortValidator;
24 import org.apache.turbine.services.intake.xmlmodel.XmlField;
25
26 /***
27 * Processor for short fields.
28 *
29 * @author <a href="mailto:jmcnally@collab.net>John McNally</a>
30 * @author <a href="mailto:Colin.Chalmers@maxware.nl">Colin Chalmers</a>
31 * @version $Id: ShortField.java 646752 2008-04-10 10:56:15Z tv $
32 */
33 public class ShortField
34 extends Field
35 {
36 /***
37 * Constructor.
38 *
39 * @param field xml field definition object
40 * @param group xml group definition object
41 * @throws IntakeException thrown by superclass
42 */
43 public ShortField(XmlField field, Group group)
44 throws IntakeException
45 {
46 super(field, group);
47 }
48
49 /***
50 * Sets the default value for an Short Field
51 *
52 * @param prop Parameter for the default values
53 */
54 public void setDefaultValue(String prop)
55 {
56 defaultValue = null;
57
58 if (prop == null)
59 {
60 return;
61 }
62
63 defaultValue = new Short(prop);
64 }
65
66 /***
67 * Set the empty Value. This value is used if Intake
68 * maps a field to a parameter returned by the user and
69 * the corresponding field is either empty (empty string)
70 * or non-existant.
71 *
72 * @param prop The value to use if the field is empty.
73 */
74 public void setEmptyValue(String prop)
75 {
76 emptyValue = null;
77
78 if (prop == null)
79 {
80 return;
81 }
82
83 emptyValue = new Short(prop);
84 }
85
86 /***
87 * Provides access to emptyValue such that the value returned will be
88 * acceptable as an argument parameter to Method.invoke. Subclasses
89 * that deal with primitive types should ensure that they return an
90 * appropriate value wrapped in the object wrapper class for the
91 * primitive type.
92 *
93 * @return the value to use when the field is empty or an Object that
94 * wraps the empty value for primitive types.
95 */
96 protected Object getSafeEmptyValue()
97 {
98 if (isMultiValued)
99 {
100 return new short[0];
101 }
102 else
103 {
104 return (null == getEmptyValue())
105 ? new Short((short) 0) : getEmptyValue();
106 }
107 }
108
109 /***
110 * A suitable validator.
111 *
112 * @return A suitable validator
113 */
114 protected String getDefaultValidator()
115 {
116 return ShortValidator.class.getName();
117 }
118
119 /***
120 * Sets the value of the field from data in the parser.
121 */
122 protected void doSetValue()
123 {
124 if (isMultiValued)
125 {
126 Integer[] inputs = parser.getIntObjects(getKey());
127 short[] values = new short[inputs.length];
128
129 for (int i = 0; i < inputs.length; i++)
130 {
131 values[i] = inputs[i] == null
132 ? ((Short) getEmptyValue()).shortValue()
133 : inputs[i].shortValue();
134 }
135
136 setTestValue(values);
137 }
138 else
139 {
140 Integer value = parser.getIntObject(getKey());
141
142 if (value == null)
143 {
144 setTestValue((Short)getEmptyValue());
145 }
146 else
147 {
148 setTestValue(new Short(value.shortValue()));
149 }
150 }
151 }
152 }