diff options
4 files changed, 92 insertions, 3 deletions
diff --git a/taler-kotlin-android/src/main/java/net/taler/common/TimestampMixin.kt b/taler-kotlin-android/src/main/java/net/taler/common/TimestampMixin.kt index 28dbe7f..6c1bebf 100644 --- a/taler-kotlin-android/src/main/java/net/taler/common/TimestampMixin.kt +++ b/taler-kotlin-android/src/main/java/net/taler/common/TimestampMixin.kt @@ -17,11 +17,23 @@ package net.taler.common import com.fasterxml.jackson.annotation.JsonProperty +import com.fasterxml.jackson.core.JsonParser +import com.fasterxml.jackson.databind.DeserializationContext +import com.fasterxml.jackson.databind.annotation.JsonDeserialize +import com.fasterxml.jackson.databind.deser.std.StdDeserializer /** * Used to support Jackson serialization along with KotlinX. */ abstract class TimestampMixin( + @get:JsonDeserialize(using = NeverDeserializer::class) @get:JsonProperty("t_ms") val ms: Long ) + +class NeverDeserializer : StdDeserializer<Long>(Long::class.java) { + override fun deserialize(p: JsonParser, ctxt: DeserializationContext): Long { + return if (p.text == "never") -1 + else p.longValue + } +} diff --git a/taler-kotlin-android/src/test/java/net/taler/common/ContractTermsTest.kt b/taler-kotlin-android/src/test/java/net/taler/common/ContractTermsTest.kt index 79a7598..077ff51 100644 --- a/taler-kotlin-android/src/test/java/net/taler/common/ContractTermsTest.kt +++ b/taler-kotlin-android/src/test/java/net/taler/common/ContractTermsTest.kt @@ -20,6 +20,7 @@ import com.fasterxml.jackson.databind.DeserializationFeature import com.fasterxml.jackson.databind.ObjectMapper import com.fasterxml.jackson.module.kotlin.KotlinModule import com.fasterxml.jackson.module.kotlin.readValue +import net.taler.common.Timestamp.Companion.NEVER import org.junit.Assert.assertEquals import org.junit.Test @@ -29,6 +30,7 @@ class ContractTermsTest { .registerModule(KotlinModule()) .configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false) .addMixIn(Amount::class.java, AmountMixin::class.java) + .addMixIn(Timestamp::class.java, TimestampMixin::class.java) @Test fun test() { @@ -40,7 +42,7 @@ class ContractTermsTest { }, "fulfillment_url":"https://shop.test.taler.net/essay/1._The_Free_Software_Definition", "summary":"Essay: 1. The Free Software Definition", - "refund_deadline":{"t_ms":1596128414000}, + "refund_deadline":{"t_ms":"never"}, "wire_transfer_deadline":{"t_ms":1596128564000}, "products":[], "h_wire":"KV40K023N8EC1F5100TYNS23C4XN68Y1Z3PTJSWFGTMCNYD54KT4S791V2VQ91SZANN86VDAA369M4VEZ0KR6DN71EVRRZA71K681M0", @@ -69,6 +71,7 @@ class ContractTermsTest { """.trimIndent() val contractTerms: ContractTerms = mapper.readValue(json) assertEquals("Essay: 1. The Free Software Definition", contractTerms.summary) + assertEquals(Timestamp(NEVER), contractTerms.refundDeadline) } } diff --git a/taler-kotlin-common/src/commonMain/kotlin/net/taler/common/Time.kt b/taler-kotlin-common/src/commonMain/kotlin/net/taler/common/Time.kt index 962e004..37b6606 100644 --- a/taler-kotlin-common/src/commonMain/kotlin/net/taler/common/Time.kt +++ b/taler-kotlin-common/src/commonMain/kotlin/net/taler/common/Time.kt @@ -18,6 +18,12 @@ package net.taler.common import kotlinx.serialization.SerialName import kotlinx.serialization.Serializable +import kotlinx.serialization.builtins.serializer +import kotlinx.serialization.json.JsonElement +import kotlinx.serialization.json.JsonPrimitive +import kotlinx.serialization.json.JsonTransformingSerializer +import kotlinx.serialization.json.contentOrNull +import kotlinx.serialization.json.longOrNull import net.taler.common.Duration.Companion.FOREVER import kotlin.math.max @@ -26,11 +32,12 @@ expect fun nowMillis(): Long @Serializable data class Timestamp( @SerialName("t_ms") + @Serializable(NeverSerializer::class) val ms: Long ) : Comparable<Timestamp> { companion object { - const val NEVER: Long = -1 // TODO or UINT64_MAX? + const val NEVER: Long = -1 fun now(): Timestamp = Timestamp(nowMillis()) } @@ -73,9 +80,27 @@ data class Duration( * Duration in milliseconds. */ @SerialName("d_ms") + @Serializable(ForeverSerializer::class) val ms: Long ) { companion object { - const val FOREVER: Long = -1 // TODO or UINT64_MAX? + const val FOREVER: Long = -1 } } + +abstract class MinusOneSerializer(private val keyword: String) : + JsonTransformingSerializer<Long>(Long.serializer(), keyword) { + + override fun readTransform(element: JsonElement): JsonElement { + return if (element.contentOrNull == keyword) return JsonPrimitive(-1) + else super.readTransform(element) + } + + override fun writeTransform(element: JsonElement): JsonElement { + return if (element.longOrNull == -1L) return JsonPrimitive(keyword) + else element + } +} + +object NeverSerializer : MinusOneSerializer("never") +object ForeverSerializer : MinusOneSerializer("forever") diff --git a/taler-kotlin-common/src/commonTest/kotlin/net/taler/common/TimeTest.kt b/taler-kotlin-common/src/commonTest/kotlin/net/taler/common/TimeTest.kt new file mode 100644 index 0000000..3ee0a99 --- /dev/null +++ b/taler-kotlin-common/src/commonTest/kotlin/net/taler/common/TimeTest.kt @@ -0,0 +1,49 @@ +/* + * This file is part of GNU Taler + * (C) 2020 Taler Systems S.A. + * + * GNU Taler is free software; you can redistribute it and/or modify it under the + * terms of the GNU General Public License as published by the Free Software + * Foundation; either version 3, or (at your option) any later version. + * + * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY + * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR + * A PARTICULAR PURPOSE. See the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along with + * GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/> + */ + +package net.taler.common + +import kotlinx.serialization.UnstableDefault +import kotlinx.serialization.json.Json.Default.parse +import kotlinx.serialization.json.Json.Default.stringify +import net.taler.common.Timestamp.Companion.NEVER +import kotlin.random.Random +import kotlin.test.Test +import kotlin.test.assertEquals + +// TODO test other functionality of Timestamp and Duration +@UnstableDefault +class TimeTest { + + @Test + fun testSerialize() { + for (i in 0 until 42) { + val t = Random.nextLong() + assertEquals("""{"t_ms":$t}""", stringify(Timestamp.serializer(), Timestamp(t))) + } + assertEquals("""{"t_ms":"never"}""", stringify(Timestamp.serializer(), Timestamp(NEVER))) + } + + @Test + fun testDeserialize() { + for (i in 0 until 42) { + val t = Random.nextLong() + assertEquals(Timestamp(t), parse(Timestamp.serializer(), """{ "t_ms": $t }""")) + } + assertEquals(Timestamp(NEVER), parse(Timestamp.serializer(), """{ "t_ms": "never" }""")) + } + +} |