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Add CheckpointCustomSerializer interface

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This commit is contained in:
Joseph Zuniga-Daly 2020-06-25 17:14:18 +01:00
parent 050a36a677
commit 1c7258aee0
2 changed files with 30 additions and 1 deletions
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25
core/src/main/kotlin/net/corda/core/serialization/SerializationCustomSerializer.kt
View File

@ -25,3 +25,28 @@ interface SerializationCustomSerializer<OBJ, PROXY> {
*/
fun fromProxy(proxy: PROXY): OBJ
}
/**
* Allows CorDapps to provide custom serializers for third party libraries where those libraries cannot
* be recompiled with the -parameters flag rendering their classes natively serializable by Corda. In this case
* a proxy serializer can be written that extends this type whose purpose is to move between those an
* unserializable types and an intermediate representation.
*
* NOTE: The proxy object should be specified as a separate class. However, this can be defined within the
* scope of the custom serializer.
*/
@KeepForDJVM
interface CheckpointCustomSerializer<OBJ, PROXY> {
/**
* Should facilitate the conversion of the third party object into the serializable
* local class specified by [PROXY]
*/
fun toProxy(obj: OBJ): PROXY
/**
* Should facilitate the conversion of the proxy object into a new instance of the
* unserializable type
*/
fun fromProxy(proxy: PROXY): OBJ
}

6
node/src/integration-test/kotlin/net/corda/node/MockNetworkCustomSerializerCheckpointTest.kt
View File

@ -6,6 +6,7 @@ import com.github.andrewoma.dexx.kollection.immutableMapOf
import com.github.andrewoma.dexx.kollection.toImmutableMap
import net.corda.core.flows.FlowLogic
import net.corda.core.flows.StartableByRPC
import net.corda.core.serialization.CheckpointCustomSerializer
import net.corda.core.serialization.SerializationCustomSerializer
import net.corda.testing.node.MockNetwork
import net.corda.testing.node.MockNetworkParameters
@ -92,7 +93,10 @@ class MockNetworkCustomSerializerCheckpointTest{
// Custom serializers
@Suppress("unused")
class TestSerializer : SerializationCustomSerializer<ImmutableMap<Any, Any>, HashMap<Any, Any>> {
class TestSerializer :
SerializationCustomSerializer<ImmutableMap<Any, Any>, HashMap<Any, Any>>,
CheckpointCustomSerializer<ImmutableMap<Any, Any>, HashMap<Any, Any>> {
override fun toProxy(obj: ImmutableMap<Any, Any>): HashMap<Any, Any> {
val proxy = HashMap<Any, Any>()
return obj.toMap(proxy)