blob: 33f2af0b54ff410a2c34b23a8fc73f79dcc32880 (
plain)
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
|
package kotlinx.serialization.features
import kotlinx.serialization.*
import kotlinx.serialization.internal.StringDescriptor
import kotlinx.serialization.json.Json
import org.junit.Test
import java.text.DateFormat
import java.text.SimpleDateFormat
import java.util.*
import kotlin.test.assertEquals
@Serializer(forClass = Date::class)
object DateSerializer : KSerializer<Date> {
override val descriptor: SerialDescriptor = StringDescriptor
// Consider wrapping in ThreadLocal if serialization may happen in multiple threads
private val df: DateFormat = SimpleDateFormat("dd/MM/yyyy HH:mm:ss.SSS").apply {
timeZone = TimeZone.getTimeZone("GMT+2")
}
override fun serialize(encoder: Encoder, obj: Date) {
encoder.encodeString(df.format(obj))
}
override fun deserialize(decoder: Decoder): Date {
return df.parse(decoder.decodeString())
}
}
@Serializable
data class ClassWithDate(@Serializable(with = DateSerializer::class) val date: Date)
class SerializeJavaClassTest {
@Test
fun serializeToStringAndRestore() {
// Thursday, 4 October 2018 09:00:00 GMT+02:00 — KotlinConf 2018 Keynote
val date = ClassWithDate(Date(1538636400000L))
val s = Json.stringify(date)
assertEquals("""{"date":"04/10/2018 09:00:00.000"}""", s)
val date2 = Json.parse(ClassWithDate.serializer(), s)
assertEquals(date, date2)
}
}
|
