This repository has been archived by the owner on Dec 20, 2020. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 0
/
DefaultGenericAttributeType.java
222 lines (179 loc) · 5 KB
/
DefaultGenericAttributeType.java
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
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
package de.chrgroth.generictypesystem.model;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
/**
* The default enumeration of all supported attribute types.
*
* @author Christian Groth
*/
public enum DefaultGenericAttributeType implements GenericAttributeType {
STRING(String.class) {
@Override
public Object parse(String value) {
return value;
}
},
ENUM(String.class) {
@Override
public Object parse(String value) {
return value;
}
},
LONG(Long.class, Integer.class) {
@Override
public Object parse(String value) {
return Long.parseLong(value);
}
@Override
protected Object convertAssignableValueForMultipleTypes(Class<?> valueClass, Object value) {
// convert from integer
if (Integer.class.equals(valueClass)) {
return Long.valueOf((Integer) value);
}
// is long
return value;
}
},
DOUBLE(Double.class, Float.class, Long.class, Integer.class) {
@Override
public Object parse(String value) {
return Double.parseDouble(value);
}
@Override
protected Object convertAssignableValueForMultipleTypes(Class<?> valueClass, Object value) {
// convert from integer
if (Integer.class.equals(valueClass)) {
return Double.valueOf((Integer) value);
}
// convert from long
if (Long.class.equals(valueClass)) {
return Double.valueOf((Long) value);
}
// convert from float
if (Float.class.equals(valueClass)) {
return Double.valueOf((Float) value);
}
// is double
return value;
}
},
BOOLEAN(Boolean.class) {
@Override
public Object parse(String value) {
return Boolean.parseBoolean(value);
}
},
DATE(LocalDate.class, String.class) {
@Override
public Object parse(String value) {
return null;
}
},
TIME(LocalTime.class, String.class) {
@Override
public Object parse(String value) {
return null;
}
},
DATETIME(LocalDateTime.class, String.class) {
@Override
public Object parse(String value) {
return null;
}
},
STRUCTURE(GenericItem.class) {
@Override
public Object parse(String value) {
return null;
}
},
LIST(List.class) {
@Override
public Object parse(String value) {
return null;
}
};
private final List<Class<?>> typeClasses;
DefaultGenericAttributeType(Class<?>... typeClasses) {
this.typeClasses = Arrays.asList(typeClasses);
}
@Override
public List<Class<?>> getTypeClasses() {
return new ArrayList<>(typeClasses);
}
@Override
public boolean isNumeric() {
return this == LONG || this == DOUBLE;
}
@Override
public boolean isText() {
return this == STRING;
}
@Override
public boolean isEnum() {
return this == ENUM;
}
@Override
public boolean isMinMaxCapable() {
return isNumeric() || isText();
}
@Override
public boolean isStepCapable() {
return isNumeric() || this == TIME || this == DATETIME;
}
@Override
public boolean isPatternCapable() {
return isText();
}
@Override
public boolean isValueProposalDependenciesCapable() {
return isText();
}
@Override
public boolean isUnitCapable() {
return isNumeric();
}
@Override
public boolean isDefaultValueCapable() {
return this == STRING || this == ENUM || this == LONG || this == DOUBLE || this == BOOLEAN;
}
@Override
public boolean isList() {
return this == LIST;
}
@Override
public boolean isStructure() {
return this == STRUCTURE;
}
@Override
public boolean isAssignableFrom(Class<?> actualClass) {
// check all classes
for (Class<?> typeClass : typeClasses) {
if (typeClass.isAssignableFrom(actualClass)) {
return true;
}
}
// none found
return false;
}
@Override
public Object convert(Object value) {
// check value is assignable
if (value == null || !isAssignableFrom(value.getClass())) {
return null;
}
// just type cast if only one allowed type is configured
if (typeClasses.size() == 1) {
return value;
}
// delegate
return convertAssignableValueForMultipleTypes(value.getClass(), value);
}
protected Object convertAssignableValueForMultipleTypes(Class<?> valueClass, Object value) {
return null;
}
}