From 8815105bf2462787885214a12af927d484226f21 Mon Sep 17 00:00:00 2001 From: Torsten Grote Date: Thu, 30 Jul 2020 16:40:23 -0300 Subject: Split out common code into multiplatform Kotlin library --- .../src/main/java/net/taler/common/AmountMixin.kt | 51 ++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 taler-kotlin-android/src/main/java/net/taler/common/AmountMixin.kt (limited to 'taler-kotlin-android/src/main/java/net/taler/common/AmountMixin.kt') diff --git a/taler-kotlin-android/src/main/java/net/taler/common/AmountMixin.kt b/taler-kotlin-android/src/main/java/net/taler/common/AmountMixin.kt new file mode 100644 index 0000000..f9b1330 --- /dev/null +++ b/taler-kotlin-android/src/main/java/net/taler/common/AmountMixin.kt @@ -0,0 +1,51 @@ +/* + * 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 + */ + +package net.taler.common + +import com.fasterxml.jackson.core.JsonGenerator +import com.fasterxml.jackson.core.JsonParser +import com.fasterxml.jackson.databind.DeserializationContext +import com.fasterxml.jackson.databind.JsonMappingException +import com.fasterxml.jackson.databind.SerializerProvider +import com.fasterxml.jackson.databind.annotation.JsonDeserialize +import com.fasterxml.jackson.databind.annotation.JsonSerialize +import com.fasterxml.jackson.databind.deser.std.StdDeserializer +import com.fasterxml.jackson.databind.ser.std.StdSerializer + +/** + * Used to support Jackson serialization along with KotlinX. + */ +@JsonSerialize(using = AmountSerializer::class) +@JsonDeserialize(using = AmountDeserializer::class) +abstract class AmountMixin + +class AmountSerializer : StdSerializer(Amount::class.java) { + override fun serialize(value: Amount, gen: JsonGenerator, provider: SerializerProvider) { + gen.writeString(value.toJSONString()) + } +} + +class AmountDeserializer : StdDeserializer(Amount::class.java) { + override fun deserialize(p: JsonParser, ctxt: DeserializationContext): Amount { + val node = p.codec.readValue(p, String::class.java) + try { + return Amount.fromJSONString(node) + } catch (e: AmountParserException) { + throw JsonMappingException(p, "Error parsing Amount", e) + } + } +} -- cgit v1.2.3