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Cross provider Issuer Reference database storage (#2032)

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* consistent storage of Issuer Reference using `ByteArray` Kotlin type in Schema definition and a custom Hibernate Type to map this to a VARBINARY database type.
Creation of a new Issued type now also validates maximum size permissible (512).
This commit is contained in:
josecoll
2017-11-17 14:18:16 +00:00
committed by GitHub
parent 19aba62fc6
commit f5c9fd8f44
16 changed files with 75 additions and 22 deletions
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8
core/src/main/kotlin/net/corda/core/contracts/Structures.kt
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@ -45,9 +45,17 @@ interface NamedByHash {
*/
@CordaSerializable
data class Issued<out P : Any>(val issuer: PartyAndReference, val product: P) {
init {
require(issuer.reference.bytes.size <= MAX_ISSUER_REF_SIZE) { "Maximum issuer reference size is $MAX_ISSUER_REF_SIZE." }
}
override fun toString() = "$product issued by $issuer"
}
/**
* The maximum permissible size of an issuer reference.
*/
const val MAX_ISSUER_REF_SIZE = 512
/**
* Strips the issuer and returns an [Amount] of the raw token directly. This is useful when you are mixing code that
* cares about specific issuers with code that will accept any, or which is imposing issuer constraints via some

2
core/src/main/kotlin/net/corda/core/crypto/SecureHash.kt
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@ -103,3 +103,5 @@ fun ByteArray.sha256(): SecureHash.SHA256 = SecureHash.sha256(this)
* Compute the SHA-256 hash for the contents of the [OpaqueBytes].
*/
fun OpaqueBytes.sha256(): SecureHash.SHA256 = SecureHash.sha256(this.bytes)

13
core/src/main/kotlin/net/corda/core/schemas/CommonSchema.kt
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@ -1,12 +1,12 @@
package net.corda.core.schemas
import net.corda.core.contracts.ContractState
import net.corda.core.contracts.FungibleAsset
import net.corda.core.contracts.OwnableState
import net.corda.core.contracts.UniqueIdentifier
import net.corda.core.contracts.*
import net.corda.core.identity.AbstractParty
import org.hibernate.annotations.Type
import java.util.*
import javax.persistence.*
import javax.persistence.Column
import javax.persistence.ElementCollection
import javax.persistence.MappedSuperclass
/**
* JPA representation of the common schema entities
@ -74,7 +74,8 @@ object CommonSchemaV1 : MappedSchema(schemaFamily = CommonSchema.javaClass, vers
@Column(name = "issuer_name")
var issuer: AbstractParty,
@Column(name = "issuer_reference")
@Column(name = "issuer_ref", length = MAX_ISSUER_REF_SIZE)
@Type(type = "corda-wrapper-binary")
var issuerRef: ByteArray
) : PersistentState()
}