1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/*
* Copyright 2000-2013 Vaadin Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.vaadin.tests.data.converter;
import java.util.Locale;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import com.vaadin.data.util.ObjectProperty;
import com.vaadin.data.util.converter.Converter;
import com.vaadin.data.util.converter.ReverseConverter;
import com.vaadin.tests.data.bean.AnotherTestEnum;
import com.vaadin.tests.data.bean.TestEnum;
import com.vaadin.ui.TextField;
public class TestAnyEnumToStringConverter {
public class AnyEnumToStringConverter implements Converter<Enum, String> {
private Class<? extends Enum>[] enumClass;
public AnyEnumToStringConverter(Class<? extends Enum>... enumClass) {
this.enumClass = enumClass;
}
@Override
public String convertToModel(Enum value, Locale locale)
throws com.vaadin.data.util.converter.Converter.ConversionException {
if (value == null) {
return null;
}
return value.toString();
}
@Override
public Enum convertToPresentation(String value, Locale locale)
throws com.vaadin.data.util.converter.Converter.ConversionException {
if (value == null) {
return null;
}
for (Class<? extends Enum> candidate : enumClass) {
for (Enum e : candidate.getEnumConstants()) {
if (e.toString().equals(value)) {
return e;
}
}
}
return null;
}
@Override
public Class<String> getModelType() {
return String.class;
}
@Override
public Class<Enum> getPresentationType() {
return Enum.class;
}
}
private AnyEnumToStringConverter converter;
@Before
public void setup() {
converter = new AnyEnumToStringConverter(TestEnum.class,
AnotherTestEnum.class);
}
@Test
public void nullConversion() {
Assert.assertEquals(null, converter.convertToModel(null, null));
}
@Test
public void enumToStringConversion() {
Assert.assertEquals(TestEnum.TWO.toString(),
converter.convertToModel(TestEnum.TWO, null));
Assert.assertEquals(AnotherTestEnum.TWO.toString(),
converter.convertToModel(AnotherTestEnum.TWO, null));
}
@Test
public void stringToEnumConversion() {
Assert.assertEquals(TestEnum.TWO,
converter.convertToPresentation(TestEnum.TWO.toString(), null));
Assert.assertEquals(AnotherTestEnum.TWO, converter
.convertToPresentation(AnotherTestEnum.TWO.toString(), null));
}
@Test
public void stringToEnumWithField() {
TextField tf = new TextField();
tf.setConverter(new ReverseConverter(converter));
tf.setPropertyDataSource(new ObjectProperty(AnotherTestEnum.TWO));
Assert.assertEquals(AnotherTestEnum.TWO.toString(), tf.getValue());
tf.setValue(AnotherTestEnum.ONE.toString());
Assert.assertEquals(AnotherTestEnum.ONE.toString(), tf.getValue());
Assert.assertEquals(AnotherTestEnum.ONE, tf.getConvertedValue());
Assert.assertEquals(AnotherTestEnum.ONE, tf.getPropertyDataSource()
.getValue());
tf.setPropertyDataSource(new ObjectProperty(TestEnum.TWO));
Assert.assertEquals(TestEnum.TWO.toString(), tf.getValue());
tf.setValue(TestEnum.ONE.toString());
Assert.assertEquals(TestEnum.ONE.toString(), tf.getValue());
Assert.assertEquals(TestEnum.ONE, tf.getConvertedValue());
Assert.assertEquals(TestEnum.ONE, tf.getPropertyDataSource().getValue());
}
}
|
