feat(adapter): add BigDecimal kotlin support (#8880)

* feat(adapter): add BigDecimal kotlin support

this allows the kotlin client generator to support
BigDecimal values

Fixes #7196

* update samples

Co-authored-by: William Cheng <wing328hk@gmail.com>

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/KotlinClientCodegen.java

@@ -463,6 +463,8 @@ public class KotlinClientCodegen extends AbstractKotlinCodegen {
                 supportingFiles.add(new SupportingFile("jvm-common/infrastructure/LocalDateAdapter.kt.mustache", infrastructureFolder, "LocalDateAdapter.kt"));
                 supportingFiles.add(new SupportingFile("jvm-common/infrastructure/LocalDateTimeAdapter.kt.mustache", infrastructureFolder, "LocalDateTimeAdapter.kt"));
                 supportingFiles.add(new SupportingFile("jvm-common/infrastructure/OffsetDateTimeAdapter.kt.mustache", infrastructureFolder, "OffsetDateTimeAdapter.kt"));
+                supportingFiles.add(new SupportingFile("jvm-common/infrastructure/BigDecimalAdapter.kt.mustache", infrastructureFolder, "BigDecimalAdapter.kt"));
+                supportingFiles.add(new SupportingFile("jvm-common/infrastructure/BigIntegerAdapter.kt.mustache", infrastructureFolder, "BigIntegerAdapter.kt"));
                 break;
 
             case gson:

modules/openapi-generator/src/main/resources/kotlin-client/jvm-common/infrastructure/BigDecimalAdapter.kt.mustache

@@ -1,5 +1,6 @@
 package {{packageName}}.infrastructure
 
+{{#kotlinx_serialization}}
 import kotlinx.serialization.KSerializer
 import kotlinx.serialization.Serializer
 import kotlinx.serialization.encoding.Decoder
@@ -7,13 +8,26 @@ import kotlinx.serialization.encoding.Encoder
 import kotlinx.serialization.descriptors.PrimitiveSerialDescriptor
 import kotlinx.serialization.descriptors.PrimitiveKind
 import kotlinx.serialization.descriptors.SerialDescriptor
+{{/kotlinx_serialization}}
+{{#moshi}}
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+{{/moshi}}
 import java.math.BigDecimal
 
-@Serializer(forClass = BigDecimal::class)
+{{#kotlinx_serialization}}@Serializer(forClass = BigDecimal::class)
 object BigDecimalAdapter : KSerializer<BigDecimal> {
     override val descriptor: SerialDescriptor = PrimitiveSerialDescriptor("BigDecimal", PrimitiveKind.STRING)
-
     override fun deserialize(decoder: Decoder): BigDecimal = BigDecimal(decoder.decodeString())
-
     override fun serialize(encoder: Encoder, value: BigDecimal) = encoder.encodeString(value.toPlainString())
-}
+}{{/kotlinx_serialization}}{{#moshi}}{{#nonPublicApi}}internal {{/nonPublicApi}}class BigDecimalAdapter {
+    @ToJson
+    fun toJson(value: BigDecimal): String {
+        return value.toPlainString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigDecimal {
+        return BigDecimal(value)
+    }
+}{{/moshi}}

modules/openapi-generator/src/main/resources/kotlin-client/jvm-common/infrastructure/BigIntegerAdapter.kt.mustache

@@ -1,5 +1,6 @@
 package {{packageName}}.infrastructure
 
+{{#kotlinx_serialization}}
 import kotlinx.serialization.KSerializer
 import kotlinx.serialization.Serializer
 import kotlinx.serialization.encoding.Decoder
@@ -7,12 +8,16 @@ import kotlinx.serialization.encoding.Encoder
 import kotlinx.serialization.descriptors.PrimitiveSerialDescriptor
 import kotlinx.serialization.descriptors.PrimitiveKind
 import kotlinx.serialization.descriptors.SerialDescriptor
+{{/kotlinx_serialization}}
+{{#moshi}}
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+{{/moshi}}
 import java.math.BigInteger
 
-@Serializer(forClass = BigInteger::class)
+{{#kotlinx_serialization}}@Serializer(forClass = BigInteger::class)
 object BigIntegerAdapter : KSerializer<BigInteger> {
     override val descriptor: SerialDescriptor = PrimitiveSerialDescriptor("BigInteger", PrimitiveKind.STRING)
-
     override fun deserialize(decoder: Decoder): BigInteger {
         return BigInteger(decoder.decodeString())
     }
@@ -20,4 +25,14 @@ object BigIntegerAdapter : KSerializer<BigInteger> {
     override fun serialize(encoder: Encoder, value: BigInteger) {
         encoder.encodeString(value.toString())
     }
-}
+}{{/kotlinx_serialization}}{{#moshi}}{{#nonPublicApi}}internal {{/nonPublicApi}}class BigIntegerAdapter {
+    @ToJson
+    fun toJson(value: BigInteger): String {
+        return value.toString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigInteger {
+        return BigInteger(value)
+    }
+}{{/moshi}}

modules/openapi-generator/src/main/resources/kotlin-client/jvm-common/infrastructure/Serializer.kt.mustache

@@ -63,6 +63,8 @@ import java.util.concurrent.atomic.AtomicLong
         {{^moshiCodeGen}}
         .add(KotlinJsonAdapterFactory())
         {{/moshiCodeGen}}
+        .add(BigDecimalAdapter())
+        .add(BigIntegerAdapter())
 
     @JvmStatic
     val moshi: Moshi by lazy {

modules/openapi-generator/src/test/java/org/openapitools/codegen/DefaultGeneratorTest.java

@@ -459,7 +459,7 @@ public class DefaultGeneratorTest {
 
             List<File> files = generator.opts(clientOptInput).generate();
 
-            Assert.assertEquals(files.size(), 24);
+            Assert.assertEquals(files.size(), 26);
 
             // Generator should report a library templated file as a generated file
             TestUtils.ensureContainsFile(files, output, "src/main/kotlin/org/openapitools/client/infrastructure/Errors.kt");
@@ -501,7 +501,7 @@ public class DefaultGeneratorTest {
 
             List<File> files = generator.opts(clientOptInput).generate();
 
-            Assert.assertEquals(files.size(), 24);
+            Assert.assertEquals(files.size(), 26);
 
             // Generator should report README.md as a generated file
             TestUtils.ensureContainsFile(files, output, "README.md");
@@ -566,7 +566,7 @@ public class DefaultGeneratorTest {
 
             List<File> files = generator.opts(clientOptInput).generate();
 
-            Assert.assertEquals(files.size(), 24);
+            Assert.assertEquals(files.size(), 26);
 
             // Generator should report a library templated file as a generated file
             TestUtils.ensureContainsFile(files, output, "src/main/kotlin/org/openapitools/client/infrastructure/Errors.kt");
@@ -620,7 +620,7 @@ public class DefaultGeneratorTest {
 
             List<File> files = generator.opts(clientOptInput).generate();
 
-            Assert.assertEquals(files.size(), 24);
+            Assert.assertEquals(files.size(), 26);
 
             // Generator should report README.md as a generated file
             TestUtils.ensureContainsFile(files, output, "README.md");

samples/client/petstore/kotlin-json-request-string/.openapi-generator/FILES

@@ -21,6 +21,8 @@ src/main/kotlin/org/openapitools/client/infrastructure/ApiAbstractions.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiInfrastructureResponse.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApplicationDelegates.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ByteArrayAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/Errors.kt
 src/main/kotlin/org/openapitools/client/infrastructure/LocalDateAdapter.kt

samples/client/petstore/kotlin-json-request-string/src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigDecimal
+
+class BigDecimalAdapter {
+    @ToJson
+    fun toJson(value: BigDecimal): String {
+        return value.toPlainString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigDecimal {
+        return BigDecimal(value)
+    }
+}

samples/client/petstore/kotlin-json-request-string/src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigInteger
+
+class BigIntegerAdapter {
+    @ToJson
+    fun toJson(value: BigInteger): String {
+        return value.toString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigInteger {
+        return BigInteger(value)
+    }
+}

samples/client/petstore/kotlin-json-request-string/src/main/kotlin/org/openapitools/client/infrastructure/Serializer.kt

@@ -13,6 +13,8 @@ object Serializer {
         .add(UUIDAdapter())
         .add(ByteArrayAdapter())
         .add(KotlinJsonAdapterFactory())
+        .add(BigDecimalAdapter())
+        .add(BigIntegerAdapter())
 
     @JvmStatic
     val moshi: Moshi by lazy {

samples/client/petstore/kotlin-moshi-codegen/.openapi-generator/FILES

@@ -21,6 +21,8 @@ src/main/kotlin/org/openapitools/client/infrastructure/ApiAbstractions.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiInfrastructureResponse.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApplicationDelegates.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ByteArrayAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/Errors.kt
 src/main/kotlin/org/openapitools/client/infrastructure/LocalDateAdapter.kt

samples/client/petstore/kotlin-moshi-codegen/src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigDecimal
+
+class BigDecimalAdapter {
+    @ToJson
+    fun toJson(value: BigDecimal): String {
+        return value.toPlainString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigDecimal {
+        return BigDecimal(value)
+    }
+}

samples/client/petstore/kotlin-moshi-codegen/src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigInteger
+
+class BigIntegerAdapter {
+    @ToJson
+    fun toJson(value: BigInteger): String {
+        return value.toString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigInteger {
+        return BigInteger(value)
+    }
+}

samples/client/petstore/kotlin-moshi-codegen/src/main/kotlin/org/openapitools/client/infrastructure/Serializer.kt

@@ -11,6 +11,8 @@ object Serializer {
         .add(LocalDateAdapter())
         .add(UUIDAdapter())
         .add(ByteArrayAdapter())
+        .add(BigDecimalAdapter())
+        .add(BigIntegerAdapter())
 
     @JvmStatic
     val moshi: Moshi by lazy {

samples/client/petstore/kotlin-nonpublic/.openapi-generator/FILES

@@ -21,6 +21,8 @@ src/main/kotlin/org/openapitools/client/infrastructure/ApiAbstractions.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiInfrastructureResponse.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApplicationDelegates.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ByteArrayAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/Errors.kt
 src/main/kotlin/org/openapitools/client/infrastructure/LocalDateAdapter.kt

samples/client/petstore/kotlin-nonpublic/src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigDecimal
+
+internal class BigDecimalAdapter {
+    @ToJson
+    fun toJson(value: BigDecimal): String {
+        return value.toPlainString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigDecimal {
+        return BigDecimal(value)
+    }
+}

samples/client/petstore/kotlin-nonpublic/src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigInteger
+
+internal class BigIntegerAdapter {
+    @ToJson
+    fun toJson(value: BigInteger): String {
+        return value.toString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigInteger {
+        return BigInteger(value)
+    }
+}

samples/client/petstore/kotlin-nonpublic/src/main/kotlin/org/openapitools/client/infrastructure/Serializer.kt

@@ -13,6 +13,8 @@ internal object Serializer {
         .add(UUIDAdapter())
         .add(ByteArrayAdapter())
         .add(KotlinJsonAdapterFactory())
+        .add(BigDecimalAdapter())
+        .add(BigIntegerAdapter())
 
     @JvmStatic
     val moshi: Moshi by lazy {

samples/client/petstore/kotlin-nullable/.openapi-generator/FILES

@@ -21,6 +21,8 @@ src/main/kotlin/org/openapitools/client/infrastructure/ApiAbstractions.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiInfrastructureResponse.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApplicationDelegates.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ByteArrayAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/Errors.kt
 src/main/kotlin/org/openapitools/client/infrastructure/LocalDateAdapter.kt

samples/client/petstore/kotlin-nullable/src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigDecimal
+
+class BigDecimalAdapter {
+    @ToJson
+    fun toJson(value: BigDecimal): String {
+        return value.toPlainString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigDecimal {
+        return BigDecimal(value)
+    }
+}

samples/client/petstore/kotlin-nullable/src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigInteger
+
+class BigIntegerAdapter {
+    @ToJson
+    fun toJson(value: BigInteger): String {
+        return value.toString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigInteger {
+        return BigInteger(value)
+    }
+}

samples/client/petstore/kotlin-nullable/src/main/kotlin/org/openapitools/client/infrastructure/Serializer.kt

@@ -13,6 +13,8 @@ object Serializer {
         .add(UUIDAdapter())
         .add(ByteArrayAdapter())
         .add(KotlinJsonAdapterFactory())
+        .add(BigDecimalAdapter())
+        .add(BigIntegerAdapter())
 
     @JvmStatic
     val moshi: Moshi by lazy {

samples/client/petstore/kotlin-okhttp3/.openapi-generator/FILES

@@ -21,6 +21,8 @@ src/main/kotlin/org/openapitools/client/infrastructure/ApiAbstractions.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiInfrastructureResponse.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApplicationDelegates.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ByteArrayAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/Errors.kt
 src/main/kotlin/org/openapitools/client/infrastructure/LocalDateAdapter.kt

samples/client/petstore/kotlin-okhttp3/src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigDecimal
+
+class BigDecimalAdapter {
+    @ToJson
+    fun toJson(value: BigDecimal): String {
+        return value.toPlainString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigDecimal {
+        return BigDecimal(value)
+    }
+}

samples/client/petstore/kotlin-okhttp3/src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigInteger
+
+class BigIntegerAdapter {
+    @ToJson
+    fun toJson(value: BigInteger): String {
+        return value.toString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigInteger {
+        return BigInteger(value)
+    }
+}

samples/client/petstore/kotlin-okhttp3/src/main/kotlin/org/openapitools/client/infrastructure/Serializer.kt

@@ -13,6 +13,8 @@ object Serializer {
         .add(UUIDAdapter())
         .add(ByteArrayAdapter())
         .add(KotlinJsonAdapterFactory())
+        .add(BigDecimalAdapter())
+        .add(BigIntegerAdapter())
 
     @JvmStatic
     val moshi: Moshi by lazy {

samples/client/petstore/kotlin-retrofit2-kotlinx_serialization/src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt

@@ -12,8 +12,6 @@ import java.math.BigDecimal
 @Serializer(forClass = BigDecimal::class)
 object BigDecimalAdapter : KSerializer<BigDecimal> {
     override val descriptor: SerialDescriptor = PrimitiveSerialDescriptor("BigDecimal", PrimitiveKind.STRING)
-
     override fun deserialize(decoder: Decoder): BigDecimal = BigDecimal(decoder.decodeString())
-
     override fun serialize(encoder: Encoder, value: BigDecimal) = encoder.encodeString(value.toPlainString())
 }

samples/client/petstore/kotlin-retrofit2-kotlinx_serialization/src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt

@@ -12,7 +12,6 @@ import java.math.BigInteger
 @Serializer(forClass = BigInteger::class)
 object BigIntegerAdapter : KSerializer<BigInteger> {
     override val descriptor: SerialDescriptor = PrimitiveSerialDescriptor("BigInteger", PrimitiveKind.STRING)
-
     override fun deserialize(decoder: Decoder): BigInteger {
         return BigInteger(decoder.decodeString())
     }

samples/client/petstore/kotlin-retrofit2-rx3/.openapi-generator/FILES

@@ -22,6 +22,8 @@ src/main/kotlin/org/openapitools/client/auth/OAuth.kt
 src/main/kotlin/org/openapitools/client/auth/OAuthFlow.kt
 src/main/kotlin/org/openapitools/client/auth/OAuthOkHttpClient.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ByteArrayAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/CollectionFormats.kt
 src/main/kotlin/org/openapitools/client/infrastructure/LocalDateAdapter.kt

samples/client/petstore/kotlin-retrofit2-rx3/src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigDecimal
+
+class BigDecimalAdapter {
+    @ToJson
+    fun toJson(value: BigDecimal): String {
+        return value.toPlainString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigDecimal {
+        return BigDecimal(value)
+    }
+}

samples/client/petstore/kotlin-retrofit2-rx3/src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigInteger
+
+class BigIntegerAdapter {
+    @ToJson
+    fun toJson(value: BigInteger): String {
+        return value.toString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigInteger {
+        return BigInteger(value)
+    }
+}

samples/client/petstore/kotlin-retrofit2-rx3/src/main/kotlin/org/openapitools/client/infrastructure/Serializer.kt

@@ -13,6 +13,8 @@ object Serializer {
         .add(UUIDAdapter())
         .add(ByteArrayAdapter())
         .add(KotlinJsonAdapterFactory())
+        .add(BigDecimalAdapter())
+        .add(BigIntegerAdapter())
 
     @JvmStatic
     val moshi: Moshi by lazy {

samples/client/petstore/kotlin-retrofit2/.openapi-generator/FILES

@@ -22,6 +22,8 @@ src/main/kotlin/org/openapitools/client/auth/OAuth.kt
 src/main/kotlin/org/openapitools/client/auth/OAuthFlow.kt
 src/main/kotlin/org/openapitools/client/auth/OAuthOkHttpClient.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ByteArrayAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/CollectionFormats.kt
 src/main/kotlin/org/openapitools/client/infrastructure/LocalDateAdapter.kt

samples/client/petstore/kotlin-retrofit2/src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigDecimal
+
+class BigDecimalAdapter {
+    @ToJson
+    fun toJson(value: BigDecimal): String {
+        return value.toPlainString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigDecimal {
+        return BigDecimal(value)
+    }
+}

samples/client/petstore/kotlin-retrofit2/src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigInteger
+
+class BigIntegerAdapter {
+    @ToJson
+    fun toJson(value: BigInteger): String {
+        return value.toString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigInteger {
+        return BigInteger(value)
+    }
+}

samples/client/petstore/kotlin-retrofit2/src/main/kotlin/org/openapitools/client/infrastructure/Serializer.kt

@@ -13,6 +13,8 @@ object Serializer {
         .add(UUIDAdapter())
         .add(ByteArrayAdapter())
         .add(KotlinJsonAdapterFactory())
+        .add(BigDecimalAdapter())
+        .add(BigIntegerAdapter())
 
     @JvmStatic
     val moshi: Moshi by lazy {

samples/client/petstore/kotlin-string/.openapi-generator/FILES

@@ -21,6 +21,8 @@ src/main/kotlin/org/openapitools/client/infrastructure/ApiAbstractions.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiInfrastructureResponse.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApplicationDelegates.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ByteArrayAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/Errors.kt
 src/main/kotlin/org/openapitools/client/infrastructure/LocalDateAdapter.kt

samples/client/petstore/kotlin-string/src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigDecimal
+
+class BigDecimalAdapter {
+    @ToJson
+    fun toJson(value: BigDecimal): String {
+        return value.toPlainString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigDecimal {
+        return BigDecimal(value)
+    }
+}

samples/client/petstore/kotlin-string/src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigInteger
+
+class BigIntegerAdapter {
+    @ToJson
+    fun toJson(value: BigInteger): String {
+        return value.toString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigInteger {
+        return BigInteger(value)
+    }
+}

samples/client/petstore/kotlin-string/src/main/kotlin/org/openapitools/client/infrastructure/Serializer.kt

@@ -13,6 +13,8 @@ object Serializer {
         .add(UUIDAdapter())
         .add(ByteArrayAdapter())
         .add(KotlinJsonAdapterFactory())
+        .add(BigDecimalAdapter())
+        .add(BigIntegerAdapter())
 
     @JvmStatic
     val moshi: Moshi by lazy {

samples/client/petstore/kotlin-threetenbp/.openapi-generator/FILES

@@ -21,6 +21,8 @@ src/main/kotlin/org/openapitools/client/infrastructure/ApiAbstractions.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiInfrastructureResponse.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApplicationDelegates.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ByteArrayAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/Errors.kt
 src/main/kotlin/org/openapitools/client/infrastructure/LocalDateAdapter.kt

samples/client/petstore/kotlin-threetenbp/src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigDecimal
+
+class BigDecimalAdapter {
+    @ToJson
+    fun toJson(value: BigDecimal): String {
+        return value.toPlainString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigDecimal {
+        return BigDecimal(value)
+    }
+}

samples/client/petstore/kotlin-threetenbp/src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigInteger
+
+class BigIntegerAdapter {
+    @ToJson
+    fun toJson(value: BigInteger): String {
+        return value.toString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigInteger {
+        return BigInteger(value)
+    }
+}

samples/client/petstore/kotlin-threetenbp/src/main/kotlin/org/openapitools/client/infrastructure/Serializer.kt

@@ -13,6 +13,8 @@ object Serializer {
         .add(UUIDAdapter())
         .add(ByteArrayAdapter())
         .add(KotlinJsonAdapterFactory())
+        .add(BigDecimalAdapter())
+        .add(BigIntegerAdapter())
 
     @JvmStatic
     val moshi: Moshi by lazy {

samples/client/petstore/kotlin-uppercase-enum/.openapi-generator/FILES

@@ -12,6 +12,8 @@ src/main/kotlin/org/openapitools/client/infrastructure/ApiAbstractions.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiInfrastructureResponse.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApplicationDelegates.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ByteArrayAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/Errors.kt
 src/main/kotlin/org/openapitools/client/infrastructure/LocalDateAdapter.kt

samples/client/petstore/kotlin-uppercase-enum/src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigDecimal
+
+class BigDecimalAdapter {
+    @ToJson
+    fun toJson(value: BigDecimal): String {
+        return value.toPlainString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigDecimal {
+        return BigDecimal(value)
+    }
+}

samples/client/petstore/kotlin-uppercase-enum/src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigInteger
+
+class BigIntegerAdapter {
+    @ToJson
+    fun toJson(value: BigInteger): String {
+        return value.toString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigInteger {
+        return BigInteger(value)
+    }
+}

samples/client/petstore/kotlin-uppercase-enum/src/main/kotlin/org/openapitools/client/infrastructure/Serializer.kt

@@ -13,6 +13,8 @@ object Serializer {
         .add(UUIDAdapter())
         .add(ByteArrayAdapter())
         .add(KotlinJsonAdapterFactory())
+        .add(BigDecimalAdapter())
+        .add(BigIntegerAdapter())
 
     @JvmStatic
     val moshi: Moshi by lazy {

samples/client/petstore/kotlin/.openapi-generator/FILES

@@ -21,6 +21,8 @@ src/main/kotlin/org/openapitools/client/infrastructure/ApiAbstractions.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiClient.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApiInfrastructureResponse.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ApplicationDelegates.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt
+src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/ByteArrayAdapter.kt
 src/main/kotlin/org/openapitools/client/infrastructure/Errors.kt
 src/main/kotlin/org/openapitools/client/infrastructure/LocalDateAdapter.kt

samples/client/petstore/kotlin/src/main/kotlin/org/openapitools/client/infrastructure/BigDecimalAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigDecimal
+
+class BigDecimalAdapter {
+    @ToJson
+    fun toJson(value: BigDecimal): String {
+        return value.toPlainString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigDecimal {
+        return BigDecimal(value)
+    }
+}

samples/client/petstore/kotlin/src/main/kotlin/org/openapitools/client/infrastructure/BigIntegerAdapter.kt

@@ -0,0 +1,17 @@
+package org.openapitools.client.infrastructure
+
+import com.squareup.moshi.FromJson
+import com.squareup.moshi.ToJson
+import java.math.BigInteger
+
+class BigIntegerAdapter {
+    @ToJson
+    fun toJson(value: BigInteger): String {
+        return value.toString()
+    }
+
+    @FromJson
+    fun fromJson(value: String): BigInteger {
+        return BigInteger(value)
+    }
+}

samples/client/petstore/kotlin/src/main/kotlin/org/openapitools/client/infrastructure/Serializer.kt

@@ -13,6 +13,8 @@ object Serializer {
         .add(UUIDAdapter())
         .add(ByteArrayAdapter())
         .add(KotlinJsonAdapterFactory())
+        .add(BigDecimalAdapter())
+        .add(BigIntegerAdapter())
 
     @JvmStatic
     val moshi: Moshi by lazy {