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Pick up new implementation of H2CashSelection

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This commit is contained in:
Christian Sailer 2017-10-19 09:53:52 +01:00
parent 1340b037c6
commit c70a7c374e
17 changed files with 615 additions and 480 deletions
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12
perftestcordapp/build.gradle
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@ -5,20 +5,26 @@ apply plugin: 'kotlin-jpa'
apply plugin: CanonicalizerPlugin
apply plugin: 'net.corda.plugins.publish-utils'
apply plugin: 'net.corda.plugins.quasar-utils'
apply plugin: 'net.corda.plugins.cordformation'
apply plugin: 'net.corda.plugins.cordapp'
//apply plugin: 'com.jfrog.artifactory'
description 'Corda performance test modules'
dependencies {
// Note the :perftestflows module is a CorDapp in its own right
// and CorDapps using :perftestflows features should use 'cordapp' not 'compile' linkage.
// Note the :finance module is a CorDapp in its own right
// and CorDapps using :finance features should use 'cordapp' not 'compile' linkage.
cordaCompile project(':core')
cordaCompile project(':confidential-identities')
// TODO Remove this once we have app configs
compile "com.typesafe:config:$typesafe_config_version"
testCompile project(':test-utils')
testCompile project(path: ':core', configuration: 'testArtifacts')
testCompile "junit:junit:$junit_version"
// AssertJ: for fluent assertions for testing
testCompile "org.assertj:assertj-core:$assertj_version"
}
configurations {

84
perftestcordapp/src/main/kotlin/com/r3/corda/enterprise/perftestcordapp/contracts/asset/Cash.kt
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@ -17,78 +17,21 @@ import net.corda.core.schemas.PersistentState
import net.corda.core.schemas.QueryableState
import net.corda.core.transactions.LedgerTransaction
import net.corda.core.transactions.TransactionBuilder
import net.corda.core.utilities.OpaqueBytes
import net.corda.core.utilities.toBase58String
import com.r3.corda.enterprise.perftestcordapp.schemas.CashSchemaV1
import com.r3.corda.enterprise.perftestcordapp.utils.sumCash
import com.r3.corda.enterprise.perftestcordapp.utils.sumCashOrNull
import com.r3.corda.enterprise.perftestcordapp.utils.sumCashOrZero
import com.r3.corda.enterprise.perftestcordapp.contracts.asset.cash.selection.AbstractCashSelection
import java.math.BigInteger
import java.security.PublicKey
import java.sql.DatabaseMetaData
import java.util.*
import java.util.concurrent.atomic.AtomicReference
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// Cash
//
/**
* Pluggable interface to allow for different cash selection provider implementations
* Default implementation [CashSelectionH2Impl] uses H2 database and a custom function within H2 to perform aggregation.
* Custom implementations must implement this interface and declare their implementation in
* META-INF/services/net.corda.contracts.asset.CashSelection
*/
interface CashSelection {
companion object {
val instance = AtomicReference<CashSelection>()
fun getInstance(metadata: () -> java.sql.DatabaseMetaData): CashSelection {
return instance.get() ?: {
val _metadata = metadata()
val cashSelectionAlgos = ServiceLoader.load(CashSelection::class.java).toList()
val cashSelectionAlgo = cashSelectionAlgos.firstOrNull { it.isCompatible(_metadata) }
cashSelectionAlgo?.let {
instance.set(cashSelectionAlgo)
cashSelectionAlgo
} ?: throw ClassNotFoundException("\nUnable to load compatible cash selection algorithm implementation for JDBC driver ($_metadata)." +
"\nPlease specify an implementation in META-INF/services/com.r3.corda.enterprise.perftestcordapp.contracts.asset.CashSelection")
}.invoke()
}
}
/**
* Upon dynamically loading configured Cash Selection algorithms declared in META-INF/services
* this method determines whether the loaded implementation is compatible and usable with the currently
* loaded JDBC driver.
* Note: the first loaded implementation to pass this check will be used at run-time.
*/
fun isCompatible(metadata: DatabaseMetaData): Boolean
/**
* Query to gather Cash states that are available
* @param services The service hub to allow access to the database session
* @param amount The amount of currency desired (ignoring issues, but specifying the currency)
* @param onlyFromIssuerParties If empty the operation ignores the specifics of the issuer,
* otherwise the set of eligible states wil be filtered to only include those from these issuers.
* @param notary If null the notary source is ignored, if specified then only states marked
* with this notary are included.
* @param lockId The FlowLogic.runId.uuid of the flow, which is used to soft reserve the states.
* Also, previous outputs of the flow will be eligible as they are implicitly locked with this id until the flow completes.
* @param withIssuerRefs If not empty the specific set of issuer references to match against.
* @return The matching states that were found. If sufficient funds were found these will be locked,
* otherwise what is available is returned unlocked for informational purposes.
*/
@Suspendable
fun unconsumedCashStatesForSpending(services: ServiceHub,
amount: Amount<Currency>,
onlyFromIssuerParties: Set<AbstractParty> = emptySet(),
notary: Party? = null,
lockId: UUID,
withIssuerRefs: Set<OpaqueBytes> = emptySet()): List<StateAndRef<Cash.State>>
}
/**
* A cash transaction may split and merge money represented by a set of (issuer, depositRef) pairs, across multiple
* input and output states. Imagine a Bitcoin transaction but in which all UTXOs had a colour
@ -103,8 +46,8 @@ interface CashSelection {
* vaults can ignore the issuer/depositRefs and just examine the amount fields.
*/
class Cash : OnLedgerAsset<Currency, Cash.Commands, Cash.State>() {
override fun extractCommands(commands: Collection<CommandWithParties<CommandData>>): List<CommandWithParties<Commands>>
= commands.select<Commands>()
override fun extractCommands(commands: Collection<CommandWithParties<CommandData>>): List<CommandWithParties<Cash.Commands>>
= commands.select<Cash.Commands>()
// DOCSTART 1
/** A state representing a cash claim against some party. */
@ -126,10 +69,10 @@ class Cash : OnLedgerAsset<Currency, Cash.Commands, Cash.State>() {
override fun toString() = "${Emoji.bagOfCash}Cash($amount at ${amount.token.issuer} owned by $owner)"
override fun withNewOwner(newOwner: AbstractParty) = CommandAndState(Commands.Move(), copy(owner = newOwner))
fun ownedBy(owner: AbstractParty) = copy(owner = owner)
fun issuedBy(party: AbstractParty) = copy(amount = Amount(amount.quantity, amount.token.copy(issuer = amount.token.issuer.copy(party = party))))
fun issuedBy(deposit: PartyAndReference) = copy(amount = Amount(amount.quantity, amount.token.copy(issuer = deposit)))
fun withDeposit(deposit: PartyAndReference): State = copy(amount = amount.copy(token = amount.token.copy(issuer = deposit)))
infix fun ownedBy(owner: AbstractParty) = copy(owner = owner)
infix fun issuedBy(party: AbstractParty) = copy(amount = Amount(amount.quantity, amount.token.copy(issuer = amount.token.issuer.copy(party = party))))
infix fun issuedBy(deposit: PartyAndReference) = copy(amount = Amount(amount.quantity, amount.token.copy(issuer = deposit)))
infix fun withDeposit(deposit: PartyAndReference): Cash.State = copy(amount = amount.copy(token = amount.token.copy(issuer = deposit)))
/** Object Relational Mapping support. */
override fun generateMappedObject(schema: MappedSchema): PersistentState {
@ -196,7 +139,7 @@ class Cash : OnLedgerAsset<Currency, Cash.Commands, Cash.State>() {
override fun verify(tx: LedgerTransaction) {
// Each group is a set of input/output states with distinct (reference, currency) attributes. These types
// of cash are not fungible and must be kept separated for bookkeeping purposes.
val groups = tx.groupStates { it: State -> it.amount.token }
val groups = tx.groupStates { it: Cash.State -> it.amount.token }
for ((inputs, outputs, key) in groups) {
// Either inputs or outputs could be empty.
@ -376,12 +319,12 @@ class Cash : OnLedgerAsset<Currency, Cash.Commands, Cash.State>() {
payments: List<PartyAndAmount<Currency>>,
ourIdentity: PartyAndCertificate,
onlyFromParties: Set<AbstractParty> = emptySet()): Pair<TransactionBuilder, List<PublicKey>> {
fun deriveState(txState: TransactionState<State>, amt: Amount<Issued<Currency>>, owner: AbstractParty)
fun deriveState(txState: TransactionState<Cash.State>, amt: Amount<Issued<Currency>>, owner: AbstractParty)
= txState.copy(data = txState.data.copy(amount = amt, owner = owner))
// Retrieve unspent and unlocked cash states that meet our spending criteria.
val totalAmount = payments.map { it.amount }.sumOrThrow()
val cashSelection = CashSelection.getInstance({ services.jdbcSession().metaData })
val cashSelection = AbstractCashSelection.getInstance({ services.jdbcSession().metaData })
val acceptableCoins = cashSelection.unconsumedCashStatesForSpending(services, totalAmount, onlyFromParties, tx.notary, tx.lockId)
val revocationEnabled = false // Revocation is currently unsupported
// Generate a new identity that change will be sent to for confidentiality purposes. This means that a
@ -396,13 +339,6 @@ class Cash : OnLedgerAsset<Currency, Cash.Commands, Cash.State>() {
}
}
// Small DSL extensions.
/** @suppress */ infix fun Cash.State.`owned by`(owner: AbstractParty) = ownedBy(owner)
/** @suppress */ infix fun Cash.State.`issued by`(party: AbstractParty) = issuedBy(party)
/** @suppress */ infix fun Cash.State.`issued by`(deposit: PartyAndReference) = issuedBy(deposit)
/** @suppress */ infix fun Cash.State.`with deposit`(deposit: PartyAndReference): Cash.State = withDeposit(deposit)
// Unit testing helpers. These could go in a separate file but it's hardly worth it for just a few functions.
/** A randomly generated key. */

61
perftestcordapp/src/main/kotlin/com/r3/corda/enterprise/perftestcordapp/contracts/asset/OnLedgerAsset.kt
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@ -56,7 +56,7 @@ abstract class OnLedgerAsset<T : Any, C : CommandData, S : FungibleAsset<T>> : C
*/
@Throws(InsufficientBalanceException::class)
@JvmStatic
fun <S : FungibleAsset<T>, T: Any> generateSpend(tx: TransactionBuilder,
fun <S : FungibleAsset<T>, T : Any> generateSpend(tx: TransactionBuilder,
amount: Amount<T>,
to: AbstractParty,
acceptableStates: List<StateAndRef<S>>,
@ -92,7 +92,7 @@ abstract class OnLedgerAsset<T : Any, C : CommandData, S : FungibleAsset<T>> : C
*/
@Throws(InsufficientBalanceException::class)
@JvmStatic
fun <S : FungibleAsset<T>, T: Any> generateSpend(tx: TransactionBuilder,
fun <S : FungibleAsset<T>, T : Any> generateSpend(tx: TransactionBuilder,
payments: List<PartyAndAmount<T>>,
acceptableStates: List<StateAndRef<S>>,
payChangeTo: AbstractParty,
@ -231,12 +231,36 @@ abstract class OnLedgerAsset<T : Any, C : CommandData, S : FungibleAsset<T>> : C
*/
@Throws(InsufficientBalanceException::class)
@JvmStatic
@Deprecated("Replaced with generateExit() which takes in a party to pay change to")
fun <S : FungibleAsset<T>, T: Any> generateExit(tx: TransactionBuilder, amountIssued: Amount<Issued<T>>,
assetStates: List<StateAndRef<S>>,
deriveState: (TransactionState<S>, Amount<Issued<T>>, AbstractParty) -> TransactionState<S>,
generateMoveCommand: () -> CommandData,
generateExitCommand: (Amount<Issued<T>>) -> CommandData): Set<PublicKey> {
val owner = assetStates.map { it.state.data.owner }.toSet().singleOrNull() ?: throw InsufficientBalanceException(amountIssued)
val owner = assetStates.map { it.state.data.owner }.toSet().firstOrNull() ?: throw InsufficientBalanceException(amountIssued)
return generateExit(tx, amountIssued, assetStates, owner, deriveState, generateMoveCommand, generateExitCommand)
}
/**
* Generate an transaction exiting fungible assets from the ledger.
*
* @param tx transaction builder to add states and commands to.
* @param amountIssued the amount to be exited, represented as a quantity of issued currency.
* @param assetStates the asset states to take funds from. No checks are done about ownership of these states, it is
* the responsibility of the caller to check that they do not attempt to exit funds held by others.
* @param payChangeTo party to pay any change to; this is normally a confidential identity of the calling
* party.
* @return the public keys which must sign the transaction for it to be valid.
*/
@Throws(InsufficientBalanceException::class)
@JvmStatic
fun <S : FungibleAsset<T>, T: Any> generateExit(tx: TransactionBuilder, amountIssued: Amount<Issued<T>>,
assetStates: List<StateAndRef<S>>,
payChangeTo: AbstractParty,
deriveState: (TransactionState<S>, Amount<Issued<T>>, AbstractParty) -> TransactionState<S>,
generateMoveCommand: () -> CommandData,
generateExitCommand: (Amount<Issued<T>>) -> CommandData): Set<PublicKey> {
require(assetStates.isNotEmpty()) { "List of states to exit cannot be empty." }
val currency = amountIssued.token.product
val amount = Amount(amountIssued.quantity, currency)
var acceptableCoins = assetStates.filter { ref -> ref.state.data.amount.token == amountIssued.token }
@ -256,7 +280,7 @@ abstract class OnLedgerAsset<T : Any, C : CommandData, S : FungibleAsset<T>> : C
val outputs = if (change != null) {
// Add a change output and adjust the last output downwards.
listOf(deriveState(gathered.last().state, change, owner))
listOf(deriveState(gathered.last().state, change, payChangeTo))
} else emptyList()
for (state in gathered) tx.addInputState(state)
@ -273,7 +297,7 @@ abstract class OnLedgerAsset<T : Any, C : CommandData, S : FungibleAsset<T>> : C
* wrappers around this function, which build the state for you, and those should be used in preference.
*/
@JvmStatic
fun <S : FungibleAsset<T>, T: Any> generateIssue(tx: TransactionBuilder,
fun <S : FungibleAsset<T>, T : Any> generateIssue(tx: TransactionBuilder,
transactionState: TransactionState<S>,
issueCommand: CommandData): Set<PublicKey> {
check(tx.inputStates().isEmpty())
@ -296,9 +320,12 @@ abstract class OnLedgerAsset<T : Any, C : CommandData, S : FungibleAsset<T>> : C
* @param amountIssued the amount to be exited, represented as a quantity of issued currency.
* @param assetStates the asset states to take funds from. No checks are done about ownership of these states, it is
* the responsibility of the caller to check that they do not exit funds held by others.
* @param payChangeTo party to pay any change to; this is normally a confidential identity of the calling
* party.
* @return the public keys which must sign the transaction for it to be valid.
*/
@Throws(InsufficientBalanceException::class)
@Deprecated("Replaced with generateExit() which takes in a party to pay change to")
fun generateExit(tx: TransactionBuilder, amountIssued: Amount<Issued<T>>,
assetStates: List<StateAndRef<S>>): Set<PublicKey> {
return generateExit(
@ -311,6 +338,30 @@ abstract class OnLedgerAsset<T : Any, C : CommandData, S : FungibleAsset<T>> : C
)
}
/**
* Generate an transaction exiting assets from the ledger.
*
* @param tx transaction builder to add states and commands to.
* @param amountIssued the amount to be exited, represented as a quantity of issued currency.
* @param assetStates the asset states to take funds from. No checks are done about ownership of these states, it is
* the responsibility of the caller to check that they do not exit funds held by others.
* @return the public keys which must sign the transaction for it to be valid.
*/
@Throws(InsufficientBalanceException::class)
fun generateExit(tx: TransactionBuilder, amountIssued: Amount<Issued<T>>,
assetStates: List<StateAndRef<S>>,
payChangeTo: AbstractParty): Set<PublicKey> {
return generateExit(
tx,
amountIssued,
assetStates,
payChangeTo,
deriveState = { state, amount, owner -> deriveState(state, amount, owner) },
generateMoveCommand = { -> generateMoveCommand() },
generateExitCommand = { amount -> generateExitCommand(amount) }
)
}
abstract fun generateExitCommand(amount: Amount<Issued<T>>): CommandData
abstract fun generateMoveCommand(): MoveCommand

168
perftestcordapp/src/main/kotlin/com/r3/corda/enterprise/perftestcordapp/contracts/asset/cash/selection/AbstractCashSelection.kt Normal file
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@ -0,0 +1,168 @@
package com.r3.corda.enterprise.perftestcordapp.contracts.asset.cash.selection
import co.paralleluniverse.fibers.Suspendable
import net.corda.core.contracts.Amount
import net.corda.core.contracts.StateAndRef
import net.corda.core.contracts.StateRef
import net.corda.core.contracts.TransactionState
import net.corda.core.crypto.SecureHash
import net.corda.core.flows.FlowLogic
import net.corda.core.identity.AbstractParty
import net.corda.core.identity.Party
import net.corda.core.node.ServiceHub
import net.corda.core.node.services.StatesNotAvailableException
import net.corda.core.serialization.SerializationDefaults
import net.corda.core.serialization.deserialize
import net.corda.core.utilities.*
import com.r3.corda.enterprise.perftestcordapp.contracts.asset.Cash
import java.sql.*
import java.util.*
import java.util.concurrent.atomic.AtomicReference
import java.util.concurrent.locks.ReentrantLock
import kotlin.concurrent.withLock
/**
* Pluggable interface to allow for different cash selection provider implementations
* Default implementation [CashSelectionH2Impl] uses H2 database and a custom function within H2 to perform aggregation.
* Custom implementations must implement this interface and declare their implementation in
* META-INF/services/net.corda.contracts.asset.CashSelection
*/
abstract class AbstractCashSelection {
companion object {
val instance = AtomicReference<AbstractCashSelection>()
fun getInstance(metadata: () -> java.sql.DatabaseMetaData): AbstractCashSelection {
return instance.get() ?: {
val _metadata = metadata()
val cashSelectionAlgos = ServiceLoader.load(AbstractCashSelection::class.java).toList()
val cashSelectionAlgo = cashSelectionAlgos.firstOrNull { it.isCompatible(_metadata) }
cashSelectionAlgo?.let {
instance.set(cashSelectionAlgo)
cashSelectionAlgo
} ?: throw ClassNotFoundException("\nUnable to load compatible cash selection algorithm implementation for JDBC driver ($_metadata)." +
"\nPlease specify an implementation in META-INF/services/${AbstractCashSelection::class.java}")
}.invoke()
}
val log = loggerFor<AbstractCashSelection>()
}
// coin selection retry loop counter, sleep (msecs) and lock for selecting states
// TODO: make parameters configurable when we get CorDapp configuration.
private val MAX_RETRIES = 8
private val RETRY_SLEEP = 100
private val RETRY_CAP = 2000
private val spendLock: ReentrantLock = ReentrantLock()
/**
* Upon dynamically loading configured Cash Selection algorithms declared in META-INF/services
* this method determines whether the loaded implementation is compatible and usable with the currently
* loaded JDBC driver.
* Note: the first loaded implementation to pass this check will be used at run-time.
*/
abstract fun isCompatible(metadata: DatabaseMetaData): Boolean
/**
* A vendor specific query(ies) to gather Cash states that are available.
* @param statement The service hub to allow access to the database session
* @param amount The amount of currency desired (ignoring issues, but specifying the currency)
* @param lockId The FlowLogic.runId.uuid of the flow, which is used to soft reserve the states.
* Also, previous outputs of the flow will be eligible as they are implicitly locked with this id until the flow completes.
* @param notary If null the notary source is ignored, if specified then only states marked
* with this notary are included.
* @param onlyFromIssuerParties Optional issuer parties to match against.
* @param withIssuerRefs Optional issuer references to match against.
* @return JDBC ResultSet with the matching states that were found. If sufficient funds were found these will be locked,
* otherwise what is available is returned unlocked for informational purposes.
*/
abstract fun executeQuery(connection: Connection, amount: Amount<Currency>, lockId: UUID, notary: Party?,
onlyFromIssuerParties: Set<AbstractParty>, withIssuerRefs: Set<OpaqueBytes>) : ResultSet
override abstract fun toString() : String
/**
* Query to gather Cash states that are available and retry if they are temporarily unavailable.
* @param services The service hub to allow access to the database session
* @param amount The amount of currency desired (ignoring issues, but specifying the currency)
* @param onlyFromIssuerParties If empty the operation ignores the specifics of the issuer,
* otherwise the set of eligible states wil be filtered to only include those from these issuers.
* @param notary If null the notary source is ignored, if specified then only states marked
* with this notary are included.
* @param lockId The FlowLogic.runId.uuid of the flow, which is used to soft reserve the states.
* Also, previous outputs of the flow will be eligible as they are implicitly locked with this id until the flow completes.
* @param withIssuerRefs If not empty the specific set of issuer references to match against.
* @return The matching states that were found. If sufficient funds were found these will be locked,
* otherwise what is available is returned unlocked for informational purposes.
*/
@Suspendable
fun unconsumedCashStatesForSpending(services: ServiceHub,
amount: Amount<Currency>,
onlyFromIssuerParties: Set<AbstractParty> = emptySet(),
notary: Party? = null,
lockId: UUID,
withIssuerRefs: Set<OpaqueBytes> = emptySet()): List<StateAndRef<Cash.State>> {
val stateAndRefs = mutableListOf<StateAndRef<Cash.State>>()
for (retryCount in 1..MAX_RETRIES) {
if (!attemptSpend(services, amount, lockId, notary, onlyFromIssuerParties, withIssuerRefs, stateAndRefs)) {
log.warn("Coin selection failed on attempt $retryCount")
// TODO: revisit the back off strategy for contended spending.
if (retryCount != MAX_RETRIES) {
stateAndRefs.clear()
val durationMillis = (minOf(RETRY_SLEEP.shl(retryCount), RETRY_CAP / 2) * (1.0 + Math.random())).toInt()
FlowLogic.sleep(durationMillis.millis)
} else {
log.warn("Insufficient spendable states identified for $amount")
}
} else {
break
}
}
return stateAndRefs
}
private fun attemptSpend(services: ServiceHub, amount: Amount<Currency>, lockId: UUID, notary: Party?, onlyFromIssuerParties: Set<AbstractParty>, withIssuerRefs: Set<OpaqueBytes>, stateAndRefs: MutableList<StateAndRef<Cash.State>>): Boolean {
spendLock.withLock {
val connection = services.jdbcSession()
try {
// we select spendable states irrespective of lock but prioritised by unlocked ones (Eg. null)
// the softLockReserve update will detect whether we try to lock states locked by others
val rs = executeQuery(connection, amount, lockId, notary, onlyFromIssuerParties, withIssuerRefs)
stateAndRefs.clear()
var totalPennies = 0L
while (rs.next()) {
val txHash = SecureHash.parse(rs.getString(1))
val index = rs.getInt(2)
val stateRef = StateRef(txHash, index)
val state = rs.getBlob(3).deserialize<TransactionState<Cash.State>>(context = SerializationDefaults.STORAGE_CONTEXT)
val pennies = rs.getLong(4)
totalPennies = rs.getLong(5)
val rowLockId = rs.getString(6)
stateAndRefs.add(StateAndRef(state, stateRef))
log.trace { "ROW: $rowLockId ($lockId): $stateRef : $pennies ($totalPennies)" }
}
if (stateAndRefs.isNotEmpty() && totalPennies >= amount.quantity) {
// we should have a minimum number of states to satisfy our selection `amount` criteria
log.trace("Coin selection for $amount retrieved ${stateAndRefs.count()} states totalling $totalPennies pennies: $stateAndRefs")
// With the current single threaded state machine available states are guaranteed to lock.
// TODO However, we will have to revisit these methods in the future multi-threaded.
services.vaultService.softLockReserve(lockId, (stateAndRefs.map { it.ref }).toNonEmptySet())
return true
}
log.trace("Coin selection requested $amount but retrieved $totalPennies pennies with state refs: ${stateAndRefs.map { it.ref }}")
// retry as more states may become available
} catch (e: SQLException) {
log.error("""Failed retrieving unconsumed states for: amount [$amount], onlyFromIssuerParties [$onlyFromIssuerParties], notary [$notary], lockId [$lockId]
$e.
""")
} catch (e: StatesNotAvailableException) { // Should never happen with single threaded state machine
log.warn(e.message)
// retry only if there are locked states that may become available again (or consumed with change)
}
}
return false
}
}

137
perftestcordapp/src/main/kotlin/com/r3/corda/enterprise/perftestcordapp/contracts/asset/cash/selection/CashSelectionH2Impl.kt
View File

@ -1,29 +1,16 @@
package com.r3.corda.enterprise.perftestcordapp.contracts.asset.cash.selection
import co.paralleluniverse.fibers.Suspendable
import co.paralleluniverse.strands.Strand
import com.r3.corda.enterprise.perftestcordapp.contracts.asset.Cash
import com.r3.corda.enterprise.perftestcordapp.contracts.asset.CashSelection
import net.corda.core.contracts.Amount
import net.corda.core.contracts.StateAndRef
import net.corda.core.contracts.StateRef
import net.corda.core.contracts.TransactionState
import net.corda.core.crypto.SecureHash
import net.corda.core.identity.AbstractParty
import net.corda.core.identity.Party
import net.corda.core.node.ServiceHub
import net.corda.core.node.services.StatesNotAvailableException
import net.corda.core.serialization.SerializationDefaults
import net.corda.core.serialization.deserialize
import net.corda.core.utilities.*
import com.r3.corda.enterprise.perftestcordapp.contracts.asset.cash.selection.AbstractCashSelection
import java.sql.Connection
import java.sql.DatabaseMetaData
import java.sql.SQLException
import java.sql.ResultSet
import java.util.*
import java.util.concurrent.locks.ReentrantLock
import kotlin.concurrent.withLock
class CashSelectionH2Impl : CashSelection {
class CashSelectionH2Impl : AbstractCashSelection() {
companion object {
const val JDBC_DRIVER_NAME = "H2 JDBC Driver"
@ -34,37 +21,8 @@ class CashSelectionH2Impl : CashSelection {
return metadata.driverName == JDBC_DRIVER_NAME
}
// coin selection retry loop counter, sleep (msecs) and lock for selecting states
private val MAX_RETRIES = 5
private val RETRY_SLEEP = 100
private val spendLock: ReentrantLock = ReentrantLock()
override fun toString() = "${this::class.java} for $JDBC_DRIVER_NAME"
/**
* An optimised query to gather Cash states that are available and retry if they are temporarily unavailable.
* @param services The service hub to allow access to the database session
* @param amount The amount of currency desired (ignoring issues, but specifying the currency)
* @param onlyFromIssuerParties If empty the operation ignores the specifics of the issuer,
* otherwise the set of eligible states wil be filtered to only include those from these issuers.
* @param notary If null the notary source is ignored, if specified then only states marked
* with this notary are included.
* @param lockId The FlowLogic.runId.uuid of the flow, which is used to soft reserve the states.
* Also, previous outputs of the flow will be eligible as they are implicitly locked with this id until the flow completes.
* @param withIssuerRefs If not empty the specific set of issuer references to match against.
* @return The matching states that were found. If sufficient funds were found these will be locked,
* otherwise what is available is returned unlocked for informational purposes.
*/
@Suspendable
override fun unconsumedCashStatesForSpending(services: ServiceHub,
amount: Amount<Currency>,
onlyFromIssuerParties: Set<AbstractParty>,
notary: Party?,
lockId: UUID,
withIssuerRefs: Set<OpaqueBytes>): List<StateAndRef<Cash.State>> {
val issuerKeysStr = onlyFromIssuerParties.fold("") { left, right -> left + "('${right.owningKey.toBase58String()}')," }.dropLast(1)
val issuerRefsStr = withIssuerRefs.fold("") { left, right -> left + "('${right.bytes.toHexString()}')," }.dropLast(1)
val stateAndRefs = mutableListOf<StateAndRef<Cash.State>>()
// We are using an H2 specific means of selecting a minimum set of rows that match a request amount of coins:
// 1) There is no standard SQL mechanism of calculating a cumulative total on a field and restricting row selection on the
@ -72,80 +30,39 @@ class CashSelectionH2Impl : CashSelection {
// 2) H2 uses session variables to perform this accumulator function:
// http://www.h2database.com/html/functions.html#set
// 3) H2 does not support JOIN's in FOR UPDATE (hence we are forced to execute 2 queries)
override fun executeQuery(connection: Connection, amount: Amount<Currency>, lockId: UUID, notary: Party?,
onlyFromIssuerParties: Set<AbstractParty>, withIssuerRefs: Set<OpaqueBytes>) : ResultSet {
connection.createStatement().execute("CALL SET(@t, 0);")
for (retryCount in 1..MAX_RETRIES) {
spendLock.withLock {
val statement = services.jdbcSession().createStatement()
try {
statement.execute("CALL SET(@t, 0);")
// we select spendable states irrespective of lock but prioritised by unlocked ones (Eg. null)
// the softLockReserve update will detect whether we try to lock states locked by others
val selectJoin = """
SELECT vs.transaction_id, vs.output_index, vs.contract_state, ccs.pennies, SET(@t, ifnull(@t,0)+ccs.pennies) total_pennies, vs.lock_id
FROM vault_states AS vs, contract_pt_cash_states AS ccs
WHERE vs.transaction_id = ccs.transaction_id AND vs.output_index = ccs.output_index
AND vs.state_status = 0
AND ccs.ccy_code = '${amount.token}' and @t < ${amount.quantity}
AND (vs.lock_id = '$lockId' OR vs.lock_id is null)
AND ccs.ccy_code = ? and @t < ?
AND (vs.lock_id = ? OR vs.lock_id is null)
""" +
(if (notary != null)
" AND vs.notary_name = '${notary.name}'" else "") +
" AND vs.notary_name = ?" else "") +
(if (onlyFromIssuerParties.isNotEmpty())
" AND ccs.issuer_key IN ($issuerKeysStr)" else "") +
" AND ccs.issuer_key IN (?)" else "") +
(if (withIssuerRefs.isNotEmpty())
" AND ccs.issuer_ref IN ($issuerRefsStr)" else "")
" AND ccs.issuer_ref IN (?)" else "")
// Retrieve spendable state refs
val rs = statement.executeQuery(selectJoin)
stateAndRefs.clear()
log.debug(selectJoin)
var totalPennies = 0L
while (rs.next()) {
val txHash = SecureHash.parse(rs.getString(1))
val index = rs.getInt(2)
val stateRef = StateRef(txHash, index)
val state = rs.getBytes(3).deserialize<TransactionState<Cash.State>>(context = SerializationDefaults.STORAGE_CONTEXT)
val pennies = rs.getLong(4)
totalPennies = rs.getLong(5)
val rowLockId = rs.getString(6)
stateAndRefs.add(StateAndRef(state, stateRef))
log.trace { "ROW: $rowLockId ($lockId): $stateRef : $pennies ($totalPennies)" }
}
// Use prepared statement for protection against SQL Injection (http://www.h2database.com/html/advanced.html#sql_injection)
val psSelectJoin = connection.prepareStatement(selectJoin)
var pIndex = 0
psSelectJoin.setString(++pIndex, amount.token.currencyCode)
psSelectJoin.setLong(++pIndex, amount.quantity)
psSelectJoin.setString(++pIndex, lockId.toString())
if (notary != null)
psSelectJoin.setString(++pIndex, notary.name.toString())
if (onlyFromIssuerParties.isNotEmpty())
psSelectJoin.setObject(++pIndex, onlyFromIssuerParties.map { it.owningKey.toBase58String() as Any}.toTypedArray() )
if (withIssuerRefs.isNotEmpty())
psSelectJoin.setObject(++pIndex, withIssuerRefs.map { it.bytes.toHexString() as Any }.toTypedArray())
log.debug { psSelectJoin.toString() }
if (stateAndRefs.isNotEmpty() && totalPennies >= amount.quantity) {
// we should have a minimum number of states to satisfy our selection `amount` criteria
log.trace("Coin selection for $amount retrieved ${stateAndRefs.count()} states totalling $totalPennies pennies: $stateAndRefs")
// With the current single threaded state machine available states are guaranteed to lock.
// TODO However, we will have to revisit these methods in the future multi-threaded.
services.vaultService.softLockReserve(lockId, (stateAndRefs.map { it.ref }).toNonEmptySet())
return stateAndRefs
}
log.trace("Coin selection requested $amount but retrieved $totalPennies pennies with state refs: ${stateAndRefs.map { it.ref }}")
// retry as more states may become available
} catch (e: SQLException) {
log.error("""Failed retrieving unconsumed states for: amount [$amount], onlyFromIssuerParties [$onlyFromIssuerParties], notary [$notary], lockId [$lockId]
$e.
""")
} catch (e: StatesNotAvailableException) { // Should never happen with single threaded state machine
stateAndRefs.clear()
log.warn(e.message)
// retry only if there are locked states that may become available again (or consumed with change)
} finally {
statement.close()
}
}
log.warn("Coin selection failed on attempt $retryCount")
// TODO: revisit the back off strategy for contended spending.
if (retryCount != MAX_RETRIES) {
Strand.sleep(RETRY_SLEEP * retryCount.toLong())
}
}
log.warn("Insufficient spendable states identified for $amount")
return stateAndRefs
return psSelectJoin.executeQuery()
}
}

4
perftestcordapp/src/main/kotlin/com/r3/corda/enterprise/perftestcordapp/flows/AbstractCashFlow.kt
View File

@ -31,7 +31,7 @@ abstract class AbstractCashFlow<out T>(override val progressTracker: ProgressTra
try {
return subFlow(FinalityFlow(tx, extraParticipants))
} catch (e: NotaryException) {
throw PtCashException(message, e)
throw CashException(message, e)
}
}
@ -50,4 +50,4 @@ abstract class AbstractCashFlow<out T>(override val progressTracker: ProgressTra
abstract class AbstractRequest(val amount: Amount<Currency>)
}
class PtCashException(message: String, cause: Throwable) : FlowException(message, cause)
class CashException(message: String, cause: Throwable) : FlowException(message, cause)

59
perftestcordapp/src/main/kotlin/com/r3/corda/enterprise/perftestcordapp/flows/CashConfigDataFlow.kt
View File

@ -1,40 +1,61 @@
package com.r3.corda.enterprise.perftestcordapp.flows
import co.paralleluniverse.fibers.Suspendable
import net.corda.core.flows.FlowException
import com.typesafe.config.ConfigFactory
import net.corda.core.flows.FlowLogic
import net.corda.core.flows.StartableByRPC
import net.corda.core.internal.declaredField
import net.corda.core.internal.div
import net.corda.core.internal.read
import net.corda.core.node.AppServiceHub
import net.corda.core.node.services.CordaService
import net.corda.core.serialization.CordaSerializable
import net.corda.core.serialization.SingletonSerializeAsToken
import com.r3.corda.enterprise.perftestcordapp.CHF
import com.r3.corda.enterprise.perftestcordapp.EUR
import com.r3.corda.enterprise.perftestcordapp.GBP
import com.r3.corda.enterprise.perftestcordapp.USD
import com.r3.corda.enterprise.perftestcordapp.flows.ConfigHolder.Companion.supportedCurrencies
import java.nio.file.Path
import java.util.*
// TODO Until apps have access to their own config, we'll hack things by first getting the baseDirectory, read the node.conf
// again to get our config and store it here for access by our flow
@CordaService
class ConfigHolder(services: AppServiceHub) : SingletonSerializeAsToken() {
companion object {
val supportedCurrencies = listOf(USD, GBP, CHF, EUR)
}
val issuableCurrencies: List<Currency>
init {
// Warning!! You are about to see a major hack!
val baseDirectory = services.declaredField<Any>("serviceHub").value
.let { it.javaClass.getMethod("getConfiguration").apply { isAccessible = true }.invoke(it) }
.declaredField<Path>("baseDirectory").value
val config = (baseDirectory / "node.conf").read { ConfigFactory.parseReader(it.reader()) }
if (config.hasPath("issuableCurrencies")) {
issuableCurrencies = config.getStringList("issuableCurrencies").map { Currency.getInstance(it) }
require(supportedCurrencies.containsAll(issuableCurrencies))
} else {
issuableCurrencies = emptyList()
}
}
}
/**
* Flow to obtain cash cordapp app configuration.
*/
@StartableByRPC
class CashConfigDataFlow : FlowLogic<PtCashConfiguration>() {
companion object {
private val supportedCurrencies = listOf(USD, GBP, CHF, EUR)
}
class CashConfigDataFlow : FlowLogic<CashConfiguration>() {
@Suspendable
override fun call(): PtCashConfiguration {
val issuableCurrencies = supportedCurrencies.mapNotNull {
try {
// Currently it uses checkFlowPermission to determine the list of issuable currency as a temporary hack.
// TODO: get the config from proper configuration source.
checkFlowPermission("corda.issuer.$it", emptyMap())
it
} catch (e: FlowException) {
null
}
}
return PtCashConfiguration(issuableCurrencies, supportedCurrencies)
override fun call(): CashConfiguration {
val configHolder = serviceHub.cordaService(ConfigHolder::class.java)
return CashConfiguration(configHolder.issuableCurrencies, supportedCurrencies)
}
}
@CordaSerializable
data class PtCashConfiguration(val issuableCurrencies: List<Currency>, val supportedCurrencies: List<Currency>)
data class CashConfiguration(val issuableCurrencies: List<Currency>, val supportedCurrencies: List<Currency>)

10
perftestcordapp/src/main/kotlin/com/r3/corda/enterprise/perftestcordapp/flows/CashExitFlow.kt
View File

@ -14,7 +14,7 @@ import net.corda.core.transactions.TransactionBuilder
import net.corda.core.utilities.OpaqueBytes
import net.corda.core.utilities.ProgressTracker
import com.r3.corda.enterprise.perftestcordapp.contracts.asset.Cash
import com.r3.corda.enterprise.perftestcordapp.contracts.asset.CashSelection
import com.r3.corda.enterprise.perftestcordapp.contracts.asset.cash.selection.AbstractCashSelection
import com.r3.corda.enterprise.perftestcordapp.issuedBy
import java.util.*
@ -41,12 +41,12 @@ class CashExitFlow(private val amount: Amount<Currency>,
* (for this flow this map is always empty).
*/
@Suspendable
@Throws(PtCashException::class)
@Throws(CashException::class)
override fun call(): AbstractCashFlow.Result {
progressTracker.currentStep = GENERATING_TX
val builder = TransactionBuilder(notary = null)
val issuer = ourIdentity.ref(issuerRef)
val exitStates = CashSelection
val exitStates = AbstractCashSelection
.getInstance { serviceHub.jdbcSession().metaData }
.unconsumedCashStatesForSpending(serviceHub, amount, setOf(issuer.party), builder.notary, builder.lockId, setOf(issuer.reference))
val signers = try {
@ -55,11 +55,11 @@ class CashExitFlow(private val amount: Amount<Currency>,
amount.issuedBy(issuer),
exitStates)
} catch (e: InsufficientBalanceException) {
throw PtCashException("Exiting more cash than exists", e)
throw CashException("Exiting more cash than exists", e)
}
// Work out who the owners of the burnt states were (specify page size so we don't silently drop any if > DEFAULT_PAGE_SIZE)
val inputStates = serviceHub.vaultQueryService.queryBy<Cash.State>(VaultQueryCriteria(stateRefs = builder.inputStates()),
val inputStates = serviceHub.vaultService.queryBy<Cash.State>(VaultQueryCriteria(stateRefs = builder.inputStates()),
PageSpecification(pageNumber = DEFAULT_PAGE_NUM, pageSize = builder.inputStates().size)).states
// TODO: Is it safe to drop participants we don't know how to contact? Does not knowing how to contact them

2
perftestcordapp/src/main/kotlin/com/r3/corda/enterprise/perftestcordapp/flows/CashPaymentFlow.kt
View File

@ -55,7 +55,7 @@ open class CashPaymentFlow(
anonymousRecipient,
issuerConstraint)
} catch (e: InsufficientBalanceException) {
throw PtCashException("Insufficient cash for spend: ${e.message}", e)
throw CashException("Insufficient cash for spend: ${e.message}", e)
}
progressTracker.currentStep = SIGNING_TX

0
perftestcordapp/src/main/resources/META-INF/services/com.r3.corda.enterprise.perftestcordapp.contracts.asset.CashSelection → perftestcordapp/src/main/resources/META-INF/services/com.r3.corda.enterprise.perftestcordapp.contracts.asset.cash.selection.AbstractCashSelection
View File

14
perftestcordapp/src/test/kotlin/com/r3/corda/enterprise/perftestcordapp/contracts/CommercialPaperTests.kt
View File

@ -15,6 +15,7 @@ import com.r3.corda.enterprise.perftestcordapp.contracts.asset.*
import net.corda.testing.*
import com.r3.corda.enterprise.perftestcordapp.contracts.asset.fillWithSomeTestCash
import net.corda.testing.node.MockServices
import net.corda.testing.node.MockServices.Companion.makeTestDatabaseAndMockServices
import org.junit.Ignore
import org.junit.Test
import org.junit.runner.RunWith
@ -81,8 +82,8 @@ class CommercialPaperTestsGeneric {
ledger {
unverifiedTransaction {
attachment(Cash.PROGRAM_ID)
output(Cash.PROGRAM_ID, "alice's $900", 900.DOLLARS.CASH `issued by` issuer `owned by` ALICE)
output(Cash.PROGRAM_ID, "some profits", someProfits.STATE `owned by` MEGA_CORP)
output(Cash.PROGRAM_ID, "alice's $900", 900.DOLLARS.CASH issuedBy issuer ownedBy ALICE)
output(Cash.PROGRAM_ID, "some profits", someProfits.STATE ownedBy MEGA_CORP)
}
// Some CP is issued onto the ledger by MegaCorp.
@ -100,7 +101,7 @@ class CommercialPaperTestsGeneric {
attachments(Cash.PROGRAM_ID, CommercialPaper.CP_PROGRAM_ID)
input("paper")
input("alice's $900")
output(Cash.PROGRAM_ID, "borrowed $900") { 900.DOLLARS.CASH `issued by` issuer `owned by` MEGA_CORP }
output(Cash.PROGRAM_ID, "borrowed $900") { 900.DOLLARS.CASH issuedBy issuer ownedBy MEGA_CORP }
output(thisTest.getContract(), "alice's paper") { "paper".output<CommercialPaper.State>().withOwner(ALICE) }
command(ALICE_PUBKEY) { Cash.Commands.Move() }
command(MEGA_CORP_PUBKEY) { thisTest.getMoveCommand() }
@ -115,8 +116,8 @@ class CommercialPaperTestsGeneric {
input("some profits")
fun TransactionDSL<TransactionDSLInterpreter>.outputs(aliceGetsBack: Amount<Issued<Currency>>) {
output(Cash.PROGRAM_ID, "Alice's profit") { aliceGetsBack.STATE `owned by` ALICE }
output(Cash.PROGRAM_ID, "Change") { (someProfits - aliceGetsBack).STATE `owned by` MEGA_CORP }
output(Cash.PROGRAM_ID, "Alice's profit") { aliceGetsBack.STATE ownedBy ALICE }
output(Cash.PROGRAM_ID, "Change") { (someProfits - aliceGetsBack).STATE ownedBy MEGA_CORP }
}
command(MEGA_CORP_PUBKEY) { Cash.Commands.Move() }
@ -216,7 +217,6 @@ class CommercialPaperTestsGeneric {
// @Test
@Ignore
fun `issue move and then redeem`() {
setCordappPackages("com.r3.enterprise.perftestcordapp.contracts")
initialiseTestSerialization()
val aliceDatabaseAndServices = MockServices.makeTestDatabaseAndMockServices(keys = listOf(ALICE_KEY))
val databaseAlice = aliceDatabaseAndServices.first
@ -300,5 +300,3 @@ class CommercialPaperTestsGeneric {
resetTestSerialization()
}
}

40
perftestcordapp/src/test/kotlin/com/r3/corda/enterprise/perftestcordapp/contracts/asset/CashSelectionH2Test.kt Normal file
View File

@ -0,0 +1,40 @@
package com.r3.corda.enterprise.perftestcordapp.contracts.asset
import net.corda.core.utilities.getOrThrow
import com.r3.corda.enterprise.perftestcordapp.DOLLARS
import com.r3.corda.enterprise.perftestcordapp.flows.CashException
import com.r3.corda.enterprise.perftestcordapp.flows.CashPaymentFlow
import net.corda.testing.chooseIdentity
import net.corda.testing.node.MockNetwork
import org.assertj.core.api.Assertions.assertThatThrownBy
import org.junit.Test
class CashSelectionH2Test {
@Test
fun `check does not hold connection over retries`() {
val mockNet = MockNetwork(threadPerNode = true)
try {
val notaryNode = mockNet.createNotaryNode()
val bankA = mockNet.createNode(configOverrides = { existingConfig ->
// Tweak connections to be minimal to make this easier (1 results in a hung node during start up, so use 2 connections).
existingConfig.dataSourceProperties.setProperty("maximumPoolSize", "2")
existingConfig
})
mockNet.startNodes()
// Start more cash spends than we have connections. If spend leaks a connection on retry, we will run out of connections.
val flow1 = bankA.services.startFlow(CashPaymentFlow(amount = 100.DOLLARS, anonymous = false, recipient = notaryNode.info.chooseIdentity()))
val flow2 = bankA.services.startFlow(CashPaymentFlow(amount = 100.DOLLARS, anonymous = false, recipient = notaryNode.info.chooseIdentity()))
val flow3 = bankA.services.startFlow(CashPaymentFlow(amount = 100.DOLLARS, anonymous = false, recipient = notaryNode.info.chooseIdentity()))
assertThatThrownBy { flow1.resultFuture.getOrThrow() }.isInstanceOf(CashException::class.java)
assertThatThrownBy { flow2.resultFuture.getOrThrow() }.isInstanceOf(CashException::class.java)
assertThatThrownBy { flow3.resultFuture.getOrThrow() }.isInstanceOf(CashException::class.java)
} finally {
mockNet.stopNodes()
}
}
}

108
perftestcordapp/src/test/kotlin/com/r3/corda/enterprise/perftestcordapp/contracts/asset/CashTests.kt
View File

@ -11,6 +11,7 @@ import net.corda.core.crypto.SecureHash
import net.corda.core.crypto.generateKeyPair
import net.corda.core.identity.AbstractParty
import net.corda.core.identity.AnonymousParty
import net.corda.core.identity.CordaX500Name
import net.corda.core.identity.Party
import net.corda.core.node.ServiceHub
import net.corda.core.node.services.Vault
@ -80,25 +81,25 @@ fun ServiceHub.fillWithSomeTestCash(howMuch: Amount<Currency>,
class CashTests : TestDependencyInjectionBase() {
val defaultRef = OpaqueBytes(ByteArray(1, { 1 }))
val defaultIssuer = MEGA_CORP.ref(defaultRef)
val inState = Cash.State(
private val defaultRef = OpaqueBytes(ByteArray(1, { 1 }))
private val defaultIssuer = MEGA_CORP.ref(defaultRef)
private val inState = Cash.State(
amount = 1000.DOLLARS `issued by` defaultIssuer,
owner = AnonymousParty(ALICE_PUBKEY)
)
// Input state held by the issuer
val issuerInState = inState.copy(owner = defaultIssuer.party)
val outState = issuerInState.copy(owner = AnonymousParty(BOB_PUBKEY))
private val issuerInState = inState.copy(owner = defaultIssuer.party)
private val outState = issuerInState.copy(owner = AnonymousParty(BOB_PUBKEY))
fun Cash.State.editDepositRef(ref: Byte) = copy(
private fun Cash.State.editDepositRef(ref: Byte) = copy(
amount = Amount(amount.quantity, token = amount.token.copy(amount.token.issuer.copy(reference = OpaqueBytes.of(ref))))
)
lateinit var miniCorpServices: MockServices
lateinit var megaCorpServices: MockServices
private lateinit var miniCorpServices: MockServices
private lateinit var megaCorpServices: MockServices
val vault: VaultService get() = miniCorpServices.vaultService
lateinit var database: CordaPersistence
lateinit var vaultStatesUnconsumed: List<StateAndRef<Cash.State>>
private lateinit var vaultStatesUnconsumed: List<StateAndRef<Cash.State>>
@Before
fun setUp() {
@ -120,7 +121,7 @@ class CashTests : TestDependencyInjectionBase() {
ownedBy = OUR_IDENTITY_1, issuedBy = MINI_CORP.ref(1), issuerServices = miniCorpServices)
}
database.transaction {
vaultStatesUnconsumed = miniCorpServices.vaultQueryService.queryBy<Cash.State>().states
vaultStatesUnconsumed = miniCorpServices.vaultService.queryBy<Cash.State>().states
}
resetTestSerialization()
}
@ -154,7 +155,7 @@ class CashTests : TestDependencyInjectionBase() {
}
tweak {
output(Cash.PROGRAM_ID) { outState }
output(Cash.PROGRAM_ID) { outState `issued by` MINI_CORP }
output(Cash.PROGRAM_ID) { outState issuedBy MINI_CORP }
command(ALICE_PUBKEY) { Cash.Commands.Move() }
this `fails with` "at least one cash input"
}
@ -358,7 +359,7 @@ class CashTests : TestDependencyInjectionBase() {
transaction {
attachment(Cash.PROGRAM_ID)
input(Cash.PROGRAM_ID) { inState }
output(Cash.PROGRAM_ID) { outState `issued by` MINI_CORP }
output(Cash.PROGRAM_ID) { outState issuedBy MINI_CORP }
command(ALICE_PUBKEY) { Cash.Commands.Move() }
this `fails with` "the amounts balance"
}
@ -397,7 +398,7 @@ class CashTests : TestDependencyInjectionBase() {
transaction {
attachment(Cash.PROGRAM_ID)
input(Cash.PROGRAM_ID) { inState }
input(Cash.PROGRAM_ID) { inState `issued by` MINI_CORP }
input(Cash.PROGRAM_ID) { inState issuedBy MINI_CORP }
output(Cash.PROGRAM_ID) { outState }
command(ALICE_PUBKEY) { Cash.Commands.Move() }
this `fails with` "the amounts balance"
@ -445,9 +446,9 @@ class CashTests : TestDependencyInjectionBase() {
transaction {
attachment(Cash.PROGRAM_ID)
input(Cash.PROGRAM_ID) { issuerInState }
input(Cash.PROGRAM_ID) { issuerInState.copy(owner = MINI_CORP) `issued by` MINI_CORP }
input(Cash.PROGRAM_ID) { issuerInState.copy(owner = MINI_CORP) issuedBy MINI_CORP }
output(Cash.PROGRAM_ID) { issuerInState.copy(amount = issuerInState.amount - (200.DOLLARS `issued by` defaultIssuer)) `issued by` MINI_CORP }
output(Cash.PROGRAM_ID) { issuerInState.copy(amount = issuerInState.amount - (200.DOLLARS `issued by` defaultIssuer)) issuedBy MINI_CORP }
output(Cash.PROGRAM_ID) { issuerInState.copy(owner = MINI_CORP, amount = issuerInState.amount - (200.DOLLARS `issued by` defaultIssuer)) }
command(MEGA_CORP_PUBKEY, MINI_CORP_PUBKEY) { Cash.Commands.Move() }
@ -481,7 +482,7 @@ class CashTests : TestDependencyInjectionBase() {
attachment(Cash.PROGRAM_ID)
// Gather 2000 dollars from two different issuers.
input(Cash.PROGRAM_ID) { inState }
input(Cash.PROGRAM_ID) { inState `issued by` MINI_CORP }
input(Cash.PROGRAM_ID) { inState issuedBy MINI_CORP }
command(ALICE_PUBKEY) { Cash.Commands.Move() }
// Can't merge them together.
@ -498,7 +499,7 @@ class CashTests : TestDependencyInjectionBase() {
// This works.
output(Cash.PROGRAM_ID) { inState.copy(owner = AnonymousParty(BOB_PUBKEY)) }
output(Cash.PROGRAM_ID) { inState.copy(owner = AnonymousParty(BOB_PUBKEY)) `issued by` MINI_CORP }
output(Cash.PROGRAM_ID) { inState.copy(owner = AnonymousParty(BOB_PUBKEY)) issuedBy MINI_CORP }
this.verifies()
}
}
@ -509,10 +510,10 @@ class CashTests : TestDependencyInjectionBase() {
transaction {
attachment(Cash.PROGRAM_ID)
val pounds = Cash.State(658.POUNDS `issued by` MINI_CORP.ref(3, 4, 5), AnonymousParty(BOB_PUBKEY))
input(Cash.PROGRAM_ID) { inState `owned by` AnonymousParty(ALICE_PUBKEY) }
input(Cash.PROGRAM_ID) { inState ownedBy AnonymousParty(ALICE_PUBKEY) }
input(Cash.PROGRAM_ID) { pounds }
output(Cash.PROGRAM_ID) { inState `owned by` AnonymousParty(BOB_PUBKEY) }
output(Cash.PROGRAM_ID) { pounds `owned by` AnonymousParty(ALICE_PUBKEY) }
output(Cash.PROGRAM_ID) { inState ownedBy AnonymousParty(BOB_PUBKEY) }
output(Cash.PROGRAM_ID) { pounds ownedBy AnonymousParty(ALICE_PUBKEY) }
command(ALICE_PUBKEY, BOB_PUBKEY) { Cash.Commands.Move() }
this.verifies()
@ -523,19 +524,20 @@ class CashTests : TestDependencyInjectionBase() {
//
// Spend tx generation
val OUR_KEY: KeyPair by lazy { generateKeyPair() }
val OUR_IDENTITY_1: AbstractParty get() = AnonymousParty(OUR_KEY.public)
private val OUR_KEY: KeyPair by lazy { generateKeyPair() }
private val OUR_IDENTITY_1: AbstractParty get() = AnonymousParty(OUR_KEY.public)
private val OUR_IDENTITY_AND_CERT = getTestPartyAndCertificate(CordaX500Name(organisation = "Me", locality = "London", country = "GB"), OUR_KEY.public)
val THEIR_IDENTITY_1 = AnonymousParty(MINI_CORP_PUBKEY)
val THEIR_IDENTITY_2 = AnonymousParty(CHARLIE_PUBKEY)
private val THEIR_IDENTITY_1 = AnonymousParty(MINI_CORP_PUBKEY)
private val THEIR_IDENTITY_2 = AnonymousParty(CHARLIE_PUBKEY)
fun makeCash(amount: Amount<Currency>, corp: Party, depositRef: Byte = 1) =
private fun makeCash(amount: Amount<Currency>, issuer: AbstractParty, depositRef: Byte = 1) =
StateAndRef(
TransactionState<Cash.State>(Cash.State(amount `issued by` corp.ref(depositRef), OUR_IDENTITY_1), Cash.PROGRAM_ID, DUMMY_NOTARY),
TransactionState(Cash.State(amount `issued by` issuer.ref(depositRef), OUR_IDENTITY_1), Cash.PROGRAM_ID, DUMMY_NOTARY),
StateRef(SecureHash.randomSHA256(), Random().nextInt(32))
)
val WALLET = listOf(
private val WALLET = listOf(
makeCash(100.DOLLARS, MEGA_CORP),
makeCash(400.DOLLARS, MEGA_CORP),
makeCash(80.DOLLARS, MINI_CORP),
@ -545,16 +547,17 @@ class CashTests : TestDependencyInjectionBase() {
/**
* Generate an exit transaction, removing some amount of cash from the ledger.
*/
private fun makeExit(amount: Amount<Currency>, corp: Party, depositRef: Byte = 1): WireTransaction {
private fun makeExit(serviceHub: ServiceHub, amount: Amount<Currency>, issuer: Party, depositRef: Byte = 1): WireTransaction {
val tx = TransactionBuilder(DUMMY_NOTARY)
Cash().generateExit(tx, Amount(amount.quantity, Issued(corp.ref(depositRef), amount.token)), WALLET)
return tx.toWireTransaction(miniCorpServices)
val payChangeTo = serviceHub.keyManagementService.freshKeyAndCert(MINI_CORP_IDENTITY, false).party
Cash().generateExit(tx, Amount(amount.quantity, Issued(issuer.ref(depositRef), amount.token)), WALLET, payChangeTo)
return tx.toWireTransaction(serviceHub)
}
private fun makeSpend(amount: Amount<Currency>, dest: AbstractParty): WireTransaction {
val tx = TransactionBuilder(DUMMY_NOTARY)
database.transaction {
Cash.generateSpend(miniCorpServices, tx, amount, dest)
Cash.generateSpend(miniCorpServices, tx, amount, OUR_IDENTITY_AND_CERT, dest)
}
return tx.toWireTransaction(miniCorpServices)
}
@ -565,7 +568,7 @@ class CashTests : TestDependencyInjectionBase() {
@Test
fun generateSimpleExit() {
initialiseTestSerialization()
val wtx = makeExit(100.DOLLARS, MEGA_CORP, 1)
val wtx = makeExit(miniCorpServices, 100.DOLLARS, MEGA_CORP, 1)
assertEquals(WALLET[0].ref, wtx.inputs[0])
assertEquals(0, wtx.outputs.size)
@ -581,10 +584,16 @@ class CashTests : TestDependencyInjectionBase() {
@Test
fun generatePartialExit() {
initialiseTestSerialization()
val wtx = makeExit(50.DOLLARS, MEGA_CORP, 1)
assertEquals(WALLET[0].ref, wtx.inputs[0])
assertEquals(1, wtx.outputs.size)
assertEquals(WALLET[0].state.data.copy(amount = WALLET[0].state.data.amount.splitEvenly(2).first()), wtx.getOutput(0))
val wtx = makeExit(miniCorpServices, 50.DOLLARS, MEGA_CORP, 1)
val actualInput = wtx.inputs.single()
// Filter the available inputs and confirm exactly one has been used
val expectedInputs = WALLET.filter { it.ref == actualInput }
assertEquals(1, expectedInputs.size)
val inputState = expectedInputs.single()
val actualChange = wtx.outputs.single().data as Cash.State
val expectedChangeAmount = inputState.state.data.amount.quantity - 50.DOLLARS.quantity
val expectedChange = WALLET[0].state.data.copy(amount = WALLET[0].state.data.amount.copy(quantity = expectedChangeAmount), owner = actualChange.owner)
assertEquals(expectedChange, wtx.getOutput(0))
}
/**
@ -593,7 +602,7 @@ class CashTests : TestDependencyInjectionBase() {
@Test
fun generateAbsentExit() {
initialiseTestSerialization()
assertFailsWith<InsufficientBalanceException> { makeExit(100.POUNDS, MEGA_CORP, 1) }
assertFailsWith<InsufficientBalanceException> { makeExit(miniCorpServices, 100.POUNDS, MEGA_CORP, 1) }
}
/**
@ -602,7 +611,7 @@ class CashTests : TestDependencyInjectionBase() {
@Test
fun generateInvalidReferenceExit() {
initialiseTestSerialization()
assertFailsWith<InsufficientBalanceException> { makeExit(100.POUNDS, MEGA_CORP, 2) }
assertFailsWith<InsufficientBalanceException> { makeExit(miniCorpServices, 100.POUNDS, MEGA_CORP, 2) }
}
/**
@ -611,7 +620,7 @@ class CashTests : TestDependencyInjectionBase() {
@Test
fun generateInsufficientExit() {
initialiseTestSerialization()
assertFailsWith<InsufficientBalanceException> { makeExit(1000.DOLLARS, MEGA_CORP, 1) }
assertFailsWith<InsufficientBalanceException> { makeExit(miniCorpServices, 1000.DOLLARS, MEGA_CORP, 1) }
}
/**
@ -620,7 +629,7 @@ class CashTests : TestDependencyInjectionBase() {
@Test
fun generateOwnerWithNoStatesExit() {
initialiseTestSerialization()
assertFailsWith<InsufficientBalanceException> { makeExit(100.POUNDS, CHARLIE, 1) }
assertFailsWith<InsufficientBalanceException> { makeExit(miniCorpServices, 100.POUNDS, CHARLIE, 1) }
}
/**
@ -629,9 +638,9 @@ class CashTests : TestDependencyInjectionBase() {
@Test
fun generateExitWithEmptyVault() {
initialiseTestSerialization()
assertFailsWith<InsufficientBalanceException> {
assertFailsWith<IllegalArgumentException> {
val tx = TransactionBuilder(DUMMY_NOTARY)
Cash().generateExit(tx, Amount(100, Issued(CHARLIE.ref(1), GBP)), emptyList())
Cash().generateExit(tx, Amount(100, Issued(CHARLIE.ref(1), GBP)), emptyList(), OUR_IDENTITY_1)
}
}
@ -643,7 +652,6 @@ class CashTests : TestDependencyInjectionBase() {
makeSpend(100.DOLLARS, THEIR_IDENTITY_1)
}
database.transaction {
@Suppress("UNCHECKED_CAST")
val vaultState = vaultStatesUnconsumed.elementAt(0)
assertEquals(vaultState.ref, wtx.inputs[0])
assertEquals(vaultState.state.data.copy(owner = THEIR_IDENTITY_1), wtx.getOutput(0))
@ -657,7 +665,7 @@ class CashTests : TestDependencyInjectionBase() {
database.transaction {
val tx = TransactionBuilder(DUMMY_NOTARY)
Cash.generateSpend(miniCorpServices, tx, 80.DOLLARS, ALICE, setOf(MINI_CORP))
Cash.generateSpend(miniCorpServices, tx, 80.DOLLARS, OUR_IDENTITY_AND_CERT, ALICE, setOf(MINI_CORP))
assertEquals(vaultStatesUnconsumed.elementAt(2).ref, tx.inputStates()[0])
}
@ -671,16 +679,15 @@ class CashTests : TestDependencyInjectionBase() {
makeSpend(10.DOLLARS, THEIR_IDENTITY_1)
}
database.transaction {
@Suppress("UNCHECKED_CAST")
val vaultState = vaultStatesUnconsumed.elementAt(0)
val changeAmount = 90.DOLLARS `issued by` defaultIssuer
val likelyChangeState = wtx.outputs.map(TransactionState<*>::data).filter { state ->
val likelyChangeState = wtx.outputs.map(TransactionState<*>::data).single { state ->
if (state is Cash.State) {
state.amount == changeAmount
} else {
false
}
}.single()
}
val changeOwner = (likelyChangeState as Cash.State).owner
assertEquals(1, miniCorpServices.keyManagementService.filterMyKeys(setOf(changeOwner.owningKey)).toList().size)
assertEquals(vaultState.ref, wtx.inputs[0])
@ -698,7 +705,6 @@ class CashTests : TestDependencyInjectionBase() {
makeSpend(500.DOLLARS, THEIR_IDENTITY_1)
}
database.transaction {
@Suppress("UNCHECKED_CAST")
val vaultState0 = vaultStatesUnconsumed.elementAt(0)
val vaultState1 = vaultStatesUnconsumed.elementAt(1)
assertEquals(vaultState0.ref, wtx.inputs[0])
@ -770,8 +776,8 @@ class CashTests : TestDependencyInjectionBase() {
Cash.State(1000.POUNDS `issued by` MINI_CORP.ref(3), MEGA_CORP).amount.token)
// States cannot be aggregated if the reference differs
assertNotEquals(fiveThousandDollarsFromMega.amount.token, (fiveThousandDollarsFromMega `with deposit` defaultIssuer).amount.token)
assertNotEquals((fiveThousandDollarsFromMega `with deposit` defaultIssuer).amount.token, fiveThousandDollarsFromMega.amount.token)
assertNotEquals(fiveThousandDollarsFromMega.amount.token, (fiveThousandDollarsFromMega withDeposit defaultIssuer).amount.token)
assertNotEquals((fiveThousandDollarsFromMega withDeposit defaultIssuer).amount.token, fiveThousandDollarsFromMega.amount.token)
}
@Test
@ -848,7 +854,7 @@ class CashTests : TestDependencyInjectionBase() {
transaction {
attachment(Cash.PROGRAM_ID)
input("MEGA_CORP cash")
output(Cash.PROGRAM_ID, "MEGA_CORP cash 2", "MEGA_CORP cash".output<Cash.State>().copy(owner = AnonymousParty(ALICE_PUBKEY)) )
output(Cash.PROGRAM_ID, "MEGA_CORP cash 2", "MEGA_CORP cash".output<Cash.State>().copy(owner = AnonymousParty(ALICE_PUBKEY)))
command(MEGA_CORP_PUBKEY) { Cash.Commands.Move() }
this.verifies()
}

26
perftestcordapp/src/test/kotlin/com/r3/corda/enterprise/perftestcordapp/contracts/flows/CashExitFlowTests.kt → perftestcordapp/src/test/kotlin/com/r3/corda/enterprise/perftestcordapp/flows/CashExitFlowTests.kt
View File

@ -1,22 +1,18 @@
package com.r3.corda.enterprise.perftestcordapp.contracts.flows
package com.r3.corda.enterprise.perftestcordapp.flows
import net.corda.core.identity.Party
import net.corda.core.utilities.OpaqueBytes
import net.corda.core.utilities.getOrThrow
import com.r3.corda.enterprise.perftestcordapp.flows.PtCashException
import com.r3.corda.enterprise.perftestcordapp.flows.CashExitFlow
import com.r3.corda.enterprise.perftestcordapp.flows.CashIssueFlow
import com.r3.corda.enterprise.perftestcordapp.DOLLARS
import com.r3.corda.enterprise.perftestcordapp.`issued by`
import com.r3.corda.enterprise.perftestcordapp.contracts.asset.Cash
import net.corda.core.identity.Party
import net.corda.core.utilities.OpaqueBytes
import net.corda.core.utilities.getOrThrow
import net.corda.node.internal.StartedNode
import net.corda.testing.BOC
import net.corda.testing.chooseIdentity
import net.corda.testing.getDefaultNotary
import net.corda.testing.node.InMemoryMessagingNetwork.ServicePeerAllocationStrategy.RoundRobin
import net.corda.testing.node.MockNetwork
import net.corda.testing.node.MockNetwork.MockNode
import net.corda.testing.setCordappPackages
import net.corda.testing.unsetCordappPackages
import org.junit.After
import org.junit.Before
import org.junit.Test
@ -34,11 +30,10 @@ class CashExitFlowTests {
@Before
fun start() {
setCordappPackages("com.r3.corda.enterprise.perftestcordapp.contracts.asset")
mockNet = MockNetwork(servicePeerAllocationStrategy = RoundRobin())
val nodes = mockNet.createSomeNodes(1)
notaryNode = nodes.notaryNode
bankOfCordaNode = nodes.partyNodes[0]
mockNet = MockNetwork(servicePeerAllocationStrategy = RoundRobin(), cordappPackages = listOf("com.r3.corda.enterprise.perftestcordapp.contracts.asset"))
notaryNode = mockNet.createNotaryNode()
bankOfCordaNode = mockNet.createPartyNode(BOC.name)
notary = notaryNode.services.getDefaultNotary()
bankOfCorda = bankOfCordaNode.info.chooseIdentity()
mockNet.runNetwork()
@ -51,7 +46,6 @@ class CashExitFlowTests {
@After
fun cleanUp() {
mockNet.stopNodes()
unsetCordappPackages()
}
@Test
@ -72,7 +66,7 @@ class CashExitFlowTests {
val expected = 0.DOLLARS
val future = bankOfCordaNode.services.startFlow(CashExitFlow(expected, ref)).resultFuture
mockNet.runNetwork()
assertFailsWith<PtCashException> {
assertFailsWith<CashException> {
future.getOrThrow()
}
}

16
perftestcordapp/src/test/kotlin/com/r3/corda/enterprise/perftestcordapp/contracts/flows/CashIssueFlowTests.kt → perftestcordapp/src/test/kotlin/com/r3/corda/enterprise/perftestcordapp/flows/CashIssueFlowTests.kt
View File

@ -1,4 +1,4 @@
package com.r3.corda.enterprise.perftestcordapp.contracts.flows
package com.r3.corda.enterprise.perftestcordapp.flows
import net.corda.core.identity.Party
import net.corda.core.utilities.OpaqueBytes
@ -7,13 +7,12 @@ import com.r3.corda.enterprise.perftestcordapp.DOLLARS
import com.r3.corda.enterprise.perftestcordapp.`issued by`
import com.r3.corda.enterprise.perftestcordapp.contracts.asset.Cash
import net.corda.node.internal.StartedNode
import com.r3.corda.enterprise.perftestcordapp.flows.CashIssueFlow
import net.corda.testing.chooseIdentity
import net.corda.testing.getDefaultNotary
import net.corda.testing.BOC
import net.corda.testing.node.InMemoryMessagingNetwork.ServicePeerAllocationStrategy.RoundRobin
import net.corda.testing.node.MockNetwork
import net.corda.testing.node.MockNetwork.MockNode
import net.corda.testing.setCordappPackages
import org.junit.After
import org.junit.Before
import org.junit.Test
@ -29,15 +28,12 @@ class CashIssueFlowTests {
@Before
fun start() {
setCordappPackages("com.r3.corda.enterprise.perftestcordapp.contracts.asset")
mockNet = MockNetwork(servicePeerAllocationStrategy = RoundRobin())
val nodes = mockNet.createSomeNodes(1)
notaryNode = nodes.notaryNode
bankOfCordaNode = nodes.partyNodes[0]
mockNet = MockNetwork(servicePeerAllocationStrategy = RoundRobin(), cordappPackages = listOf("com.r3.corda.enterprise.perftestcordapp.contracts.asset"))
notaryNode = mockNet.createNotaryNode()
bankOfCordaNode = mockNet.createPartyNode(BOC.name)
bankOfCorda = bankOfCordaNode.info.chooseIdentity()
notary = notaryNode.services.getDefaultNotary()
mockNet.runNetwork()
notary = bankOfCordaNode.services.getDefaultNotary()
}
@After

31
perftestcordapp/src/test/kotlin/com/r3/corda/enterprise/perftestcordapp/contracts/flows/CashPaymentFlowTests.kt → perftestcordapp/src/test/kotlin/com/r3/corda/enterprise/perftestcordapp/flows/CashPaymentFlowTests.kt
View File

@ -1,26 +1,19 @@
package com.r3.corda.enterprise.perftestcordapp.contracts.flows
package com.r3.corda.enterprise.perftestcordapp.flows
import com.r3.corda.enterprise.perftestcordapp.DOLLARS
import com.r3.corda.enterprise.perftestcordapp.`issued by`
import com.r3.corda.enterprise.perftestcordapp.contracts.asset.Cash
import net.corda.core.identity.Party
import net.corda.core.node.services.Vault
import net.corda.core.node.services.trackBy
import net.corda.core.node.services.vault.QueryCriteria
import net.corda.core.utilities.OpaqueBytes
import net.corda.core.utilities.getOrThrow
import com.r3.corda.enterprise.perftestcordapp.DOLLARS
import com.r3.corda.enterprise.perftestcordapp.`issued by`
import com.r3.corda.enterprise.perftestcordapp.contracts.asset.Cash
import com.r3.corda.enterprise.perftestcordapp.flows.PtCashException
import com.r3.corda.enterprise.perftestcordapp.flows.CashIssueFlow
import com.r3.corda.enterprise.perftestcordapp.flows.CashPaymentFlow
import net.corda.node.internal.StartedNode
import net.corda.testing.chooseIdentity
import net.corda.testing.expect
import net.corda.testing.expectEvents
import net.corda.testing.getDefaultNotary
import net.corda.testing.*
import net.corda.testing.node.InMemoryMessagingNetwork.ServicePeerAllocationStrategy.RoundRobin
import net.corda.testing.node.MockNetwork
import net.corda.testing.node.MockNetwork.MockNode
import net.corda.testing.setCordappPackages
import org.junit.After
import org.junit.Before
import org.junit.Test
@ -38,11 +31,9 @@ class CashPaymentFlowTests {
@Before
fun start() {
setCordappPackages("com.r3.corda.enterprise.perftestcordapp.contracts.asset")
mockNet = MockNetwork(servicePeerAllocationStrategy = RoundRobin())
val nodes = mockNet.createSomeNodes(1)
notaryNode = nodes.notaryNode
bankOfCordaNode = nodes.partyNodes[0]
mockNet = MockNetwork(servicePeerAllocationStrategy = RoundRobin(), cordappPackages = listOf("com.r3.corda.enterprise.perftestcordapp.contracts.asset"))
notaryNode = mockNet.createNotaryNode()
bankOfCordaNode = mockNet.createPartyNode(BOC.name)
bankOfCorda = bankOfCordaNode.info.chooseIdentity()
notary = notaryNode.services.getDefaultNotary()
val future = bankOfCordaNode.services.startFlow(CashIssueFlow(initialBalance, ref, notary)).resultFuture
@ -64,8 +55,8 @@ class CashPaymentFlowTests {
bankOfCordaNode.database.transaction {
// Register for vault updates
val criteria = QueryCriteria.VaultQueryCriteria(status = Vault.StateStatus.ALL)
val (_, vaultUpdatesBoc) = bankOfCordaNode.services.vaultQueryService.trackBy<Cash.State>(criteria)
val (_, vaultUpdatesBankClient) = notaryNode.services.vaultQueryService.trackBy<Cash.State>(criteria)
val (_, vaultUpdatesBoc) = bankOfCordaNode.services.vaultService.trackBy<Cash.State>(criteria)
val (_, vaultUpdatesBankClient) = notaryNode.services.vaultService.trackBy<Cash.State>(criteria)
val future = bankOfCordaNode.services.startFlow(CashPaymentFlow(expectedPayment,
payTo)).resultFuture
@ -102,7 +93,7 @@ class CashPaymentFlowTests {
val future = bankOfCordaNode.services.startFlow(CashPaymentFlow(expected,
payTo)).resultFuture
mockNet.runNetwork()
assertFailsWith<PtCashException> {
assertFailsWith<CashException> {
future.getOrThrow()
}
}

275
perftestcordapp/src/test/kotlin/com/r3/corda/enterprise/perftestcordapp/contracts/flows/TwoPartyTradeFlowTest.kt → perftestcordapp/src/test/kotlin/com/r3/corda/enterprise/perftestcordapp/flows/TwoPartyTradeFlowTest.kt
View File

@ -1,4 +1,7 @@
package com.r3.corda.enterprise.perftestcordapp.contracts.flows
package com.r3.corda.enterprise.perftestcordapp.flows
// NB: Unlike the other flow tests in this package, this is not originally copied from net.corda.finance, but
// from net.corda.node.messaging
import co.paralleluniverse.fibers.Suspendable
import net.corda.core.concurrent.CordaFuture
@ -31,8 +34,6 @@ import com.r3.corda.enterprise.perftestcordapp.`issued by`
import com.r3.corda.enterprise.perftestcordapp.contracts.CommercialPaper
import com.r3.corda.enterprise.perftestcordapp.contracts.asset.CASH
import com.r3.corda.enterprise.perftestcordapp.contracts.asset.Cash
import com.r3.corda.enterprise.perftestcordapp.contracts.asset.`issued by`
import com.r3.corda.enterprise.perftestcordapp.contracts.asset.`owned by`
import com.r3.corda.enterprise.perftestcordapp.flows.TwoPartyTradeFlow.Buyer
import com.r3.corda.enterprise.perftestcordapp.flows.TwoPartyTradeFlow.Seller
import net.corda.node.internal.StartedNode
@ -43,13 +44,18 @@ import net.corda.node.utilities.CordaPersistence
import net.corda.nodeapi.internal.ServiceInfo
import net.corda.testing.*
import com.r3.corda.enterprise.perftestcordapp.contracts.asset.fillWithSomeTestCash
import net.corda.node.services.api.Checkpoint
import net.corda.node.services.api.CheckpointStorage
import net.corda.testing.node.InMemoryMessagingNetwork
import net.corda.testing.node.MockNetwork
import net.corda.testing.node.MockServices
import net.corda.testing.node.pumpReceive
import org.assertj.core.api.Assertions.assertThat
import org.junit.After
import org.junit.Before
import org.junit.Test
import org.junit.runner.RunWith
import org.junit.runners.Parameterized
import rx.Observable
import java.io.ByteArrayInputStream
import java.io.ByteArrayOutputStream
@ -62,18 +68,41 @@ import kotlin.test.assertEquals
import kotlin.test.assertFailsWith
import kotlin.test.assertTrue
/**
* Copied from DBCheckpointStorageTests as it is required as helper for this test
*/
internal fun CheckpointStorage.checkpoints(): List<Checkpoint> {
val checkpoints = mutableListOf<Checkpoint>()
forEach {
checkpoints += it
true
}
return checkpoints
}
/**
* In this example, Alice wishes to sell her commercial paper to Bob in return for $1,000,000 and they wish to do
* it on the ledger atomically. Therefore they must work together to build a transaction.
*
* We assume that Alice and Bob already found each other via some market, and have agreed the details already.
*/
class TwoPartyTradeFlowTests {
@RunWith(Parameterized::class)
class TwoPartyTradeFlowTests(val anonymous: Boolean) {
companion object {
private val cordappPackages = listOf("com.r3.corda.enterprise.perftestcordapp.contracts")
@JvmStatic
@Parameterized.Parameters
fun data(): Collection<Boolean> {
return listOf(true, false)
}
}
private lateinit var mockNet: MockNetwork
@Before
fun before() {
setCordappPackages("com.r3.corda.enterprise.perftestcordapp.contracts")
LogHelper.setLevel("platform.trade", "core.contract.TransactionGroup", "recordingmap")
}
@ -81,7 +110,6 @@ class TwoPartyTradeFlowTests {
fun after() {
mockNet.stopNodes()
LogHelper.reset("platform.trade", "core.contract.TransactionGroup", "recordingmap")
unsetCordappPackages()
}
@Test
@ -89,18 +117,17 @@ class TwoPartyTradeFlowTests {
// We run this in parallel threads to help catch any race conditions that may exist. The other tests
// we run in the unit test thread exclusively to speed things up, ensure deterministic results and
// allow interruption half way through.
mockNet = MockNetwork(false, true)
ledger(initialiseSerialization = false) {
val basketOfNodes = mockNet.createSomeNodes(3)
val notaryNode = basketOfNodes.notaryNode
val aliceNode = basketOfNodes.partyNodes[0]
val bobNode = basketOfNodes.partyNodes[1]
val bankNode = basketOfNodes.partyNodes[2]
val cashIssuer = bankNode.info.chooseIdentity().ref(1)
val cpIssuer = bankNode.info.chooseIdentity().ref(1, 2, 3)
val notary = aliceNode.services.getDefaultNotary()
mockNet = MockNetwork(false, true, cordappPackages = cordappPackages)
ledger(MockServices(cordappPackages), initialiseSerialization = false) {
val notaryNode = mockNet.createNotaryNode()
val aliceNode = mockNet.createPartyNode(ALICE_NAME)
val bobNode = mockNet.createPartyNode(BOB_NAME)
val bankNode = mockNet.createPartyNode(BOC_NAME)
val alice = aliceNode.info.singleIdentity()
val bank = bankNode.info.singleIdentity()
val notary = notaryNode.services.getDefaultNotary()
val cashIssuer = bank.ref(1)
val cpIssuer = bank.ref(1, 2, 3)
aliceNode.internals.disableDBCloseOnStop()
bobNode.internals.disableDBCloseOnStop()
@ -111,8 +138,8 @@ class TwoPartyTradeFlowTests {
}
val alicesFakePaper = aliceNode.database.transaction {
fillUpForSeller(false, cpIssuer, aliceNode.info.chooseIdentity(),
1200.DOLLARS `issued by` bankNode.info.chooseIdentity().ref(0), null, notary).second
fillUpForSeller(false, cpIssuer, alice,
1200.DOLLARS `issued by` bank.ref(0), null, notary).second
}
insertFakeTransactions(alicesFakePaper, aliceNode, notaryNode, bankNode)
@ -127,27 +154,28 @@ class TwoPartyTradeFlowTests {
aliceNode.dispose()
bobNode.dispose()
// aliceNode.database.transaction {
// assertThat(aliceNode.checkpointStorage.checkpoints()).isEmpty()
// }
aliceNode.database.transaction {
assertThat(aliceNode.checkpointStorage.checkpoints()).isEmpty()
}
aliceNode.internals.manuallyCloseDB()
// bobNode.database.transaction {
// assertThat(bobNode.checkpointStorage.checkpoints()).isEmpty()
// }
bobNode.database.transaction {
assertThat(bobNode.checkpointStorage.checkpoints()).isEmpty()
}
bobNode.internals.manuallyCloseDB()
}
}
@Test(expected = InsufficientBalanceException::class)
fun `trade cash for commercial paper fails using soft locking`() {
mockNet = MockNetwork(false, true)
ledger(initialiseSerialization = false) {
val notaryNode = mockNet.createNotaryNode(null, DUMMY_NOTARY.name)
val aliceNode = mockNet.createPartyNode(notaryNode.network.myAddress, ALICE.name)
val bobNode = mockNet.createPartyNode(notaryNode.network.myAddress, BOB.name)
val bankNode = mockNet.createPartyNode(notaryNode.network.myAddress, BOC.name)
val issuer = bankNode.info.chooseIdentity().ref(1)
mockNet = MockNetwork(false, true, cordappPackages = cordappPackages)
ledger(MockServices(cordappPackages), initialiseSerialization = false) {
val notaryNode = mockNet.createNotaryNode()
val aliceNode = mockNet.createPartyNode(ALICE_NAME)
val bobNode = mockNet.createPartyNode(BOB_NAME)
val bankNode = mockNet.createPartyNode(BOC_NAME)
val alice = aliceNode.info.singleIdentity()
val bank = bankNode.info.singleIdentity()
val issuer = bank.ref(1)
val notary = aliceNode.services.getDefaultNotary()
aliceNode.internals.disableDBCloseOnStop()
@ -159,8 +187,8 @@ class TwoPartyTradeFlowTests {
}
val alicesFakePaper = aliceNode.database.transaction {
fillUpForSeller(false, issuer, aliceNode.info.chooseIdentity(),
1200.DOLLARS `issued by` bankNode.info.chooseIdentity().ref(0), null, notary).second
fillUpForSeller(false, issuer, alice,
1200.DOLLARS `issued by` bank.ref(0), null, notary).second
}
insertFakeTransactions(alicesFakePaper, aliceNode, notaryNode, bankNode)
@ -182,52 +210,43 @@ class TwoPartyTradeFlowTests {
aliceNode.dispose()
bobNode.dispose()
// aliceNode.database.transaction {
// assertThat(aliceNode.checkpointStorage.checkpoints()).isEmpty()
// }
aliceNode.database.transaction {
assertThat(aliceNode.checkpointStorage.checkpoints()).isEmpty()
}
aliceNode.internals.manuallyCloseDB()
// bobNode.database.transaction {
// assertThat(bobNode.checkpointStorage.checkpoints()).isEmpty()
// }
bobNode.database.transaction {
assertThat(bobNode.checkpointStorage.checkpoints()).isEmpty()
}
bobNode.internals.manuallyCloseDB()
}
}
@Test
fun `shutdown and restore`() {
mockNet = MockNetwork(false)
ledger(initialiseSerialization = false) {
val notaryNode = mockNet.createNotaryNode(null, DUMMY_NOTARY.name)
val aliceNode = mockNet.createPartyNode(notaryNode.network.myAddress, ALICE.name)
var bobNode = mockNet.createPartyNode(notaryNode.network.myAddress, BOB.name)
val bankNode = mockNet.createPartyNode(notaryNode.network.myAddress, BOC.name)
val issuer = bankNode.info.chooseIdentity().ref(1, 2, 3)
// Let the nodes know about each other - normally the network map would handle this
mockNet.registerIdentities()
aliceNode.database.transaction {
aliceNode.services.identityService.verifyAndRegisterIdentity(bobNode.info.chooseIdentityAndCert())
}
bobNode.database.transaction {
bobNode.services.identityService.verifyAndRegisterIdentity(aliceNode.info.chooseIdentityAndCert())
}
mockNet = MockNetwork(false, cordappPackages = cordappPackages)
ledger(MockServices(cordappPackages), initialiseSerialization = false) {
val notaryNode = mockNet.createNotaryNode()
val aliceNode = mockNet.createPartyNode(ALICE_NAME)
var bobNode = mockNet.createPartyNode(BOB_NAME)
val bankNode = mockNet.createPartyNode(BOC_NAME)
aliceNode.internals.disableDBCloseOnStop()
bobNode.internals.disableDBCloseOnStop()
val bobAddr = bobNode.network.myAddress as InMemoryMessagingNetwork.PeerHandle
val networkMapAddress = notaryNode.network.myAddress
mockNet.runNetwork() // Clear network map registration messages
val notary = aliceNode.services.getDefaultNotary()
val notary = notaryNode.services.getDefaultNotary()
val alice = aliceNode.info.singleIdentity()
val bank = bankNode.info.singleIdentity()
val issuer = bank.ref(1, 2, 3)
bobNode.database.transaction {
bobNode.services.fillWithSomeTestCash(2000.DOLLARS, bankNode.services, outputNotary = notary,
issuedBy = issuer)
}
val alicesFakePaper = aliceNode.database.transaction {
fillUpForSeller(false, issuer, aliceNode.info.chooseIdentity(),
1200.DOLLARS `issued by` bankNode.info.chooseIdentity().ref(0), null, notary).second
fillUpForSeller(false, issuer, alice,
1200.DOLLARS `issued by` bank.ref(0), null, notary).second
}
insertFakeTransactions(alicesFakePaper, aliceNode, notaryNode, bankNode)
val aliceFuture = runBuyerAndSeller(notary, aliceNode, bobNode, "alice's paper".outputStateAndRef()).sellerResult
@ -244,10 +263,10 @@ class TwoPartyTradeFlowTests {
aliceNode.pumpReceive()
bobNode.pumpReceive()
// // OK, now Bob has sent the partial transaction back to Alice and is waiting for Alice's signature.
// bobNode.database.transaction {
// assertThat(bobNode.checkpointStorage.checkpoints()).hasSize(1)
// }
// OK, now Bob has sent the partial transaction back to Alice and is waiting for Alice's signature.
bobNode.database.transaction {
assertThat(bobNode.checkpointStorage.checkpoints()).hasSize(1)
}
val storage = bobNode.services.validatedTransactions
val bobTransactionsBeforeCrash = bobNode.database.transaction {
@ -267,13 +286,12 @@ class TwoPartyTradeFlowTests {
// ... bring the node back up ... the act of constructing the SMM will re-register the message handlers
// that Bob was waiting on before the reboot occurred.
bobNode = mockNet.createNode(networkMapAddress, bobAddr.id, object : MockNetwork.Factory<MockNetwork.MockNode> {
bobNode = mockNet.createNode(bobAddr.id, object : MockNetwork.Factory<MockNetwork.MockNode> {
override fun create(config: NodeConfiguration, network: MockNetwork, networkMapAddr: SingleMessageRecipient?,
advertisedServices: Set<ServiceInfo>, id: Int, overrideServices: Map<ServiceInfo, KeyPair>?,
entropyRoot: BigInteger): MockNetwork.MockNode {
return MockNetwork.MockNode(config, network, networkMapAddr, advertisedServices, bobAddr.id, overrideServices, entropyRoot)
id: Int, notaryIdentity: Pair<ServiceInfo, KeyPair>?, entropyRoot: BigInteger): MockNetwork.MockNode {
return MockNetwork.MockNode(config, network, networkMapAddr, bobAddr.id, notaryIdentity, entropyRoot)
}
}, BOB.name)
}, BOB_NAME)
// Find the future representing the result of this state machine again.
val bobFuture = bobNode.smm.findStateMachines(BuyerAcceptor::class.java).single().second
@ -285,12 +303,12 @@ class TwoPartyTradeFlowTests {
assertThat(bobFuture.getOrThrow()).isEqualTo(aliceFuture.getOrThrow())
assertThat(bobNode.smm.findStateMachines(Buyer::class.java)).isEmpty()
// bobNode.database.transaction {
// assertThat(bobNode.checkpointStorage.checkpoints()).isEmpty()
// }
// aliceNode.database.transaction {
// assertThat(aliceNode.checkpointStorage.checkpoints()).isEmpty()
// }
bobNode.database.transaction {
assertThat(bobNode.checkpointStorage.checkpoints()).isEmpty()
}
aliceNode.database.transaction {
assertThat(aliceNode.checkpointStorage.checkpoints()).isEmpty()
}
bobNode.database.transaction {
val restoredBobTransactions = bobTransactionsBeforeCrash.filter {
@ -306,18 +324,15 @@ class TwoPartyTradeFlowTests {
// Creates a mock node with an overridden storage service that uses a RecordingMap, that lets us test the order
// of gets and puts.
private fun makeNodeWithTracking(
networkMapAddress: SingleMessageRecipient?,
name: CordaX500Name): StartedNode<MockNetwork.MockNode> {
private fun makeNodeWithTracking(name: CordaX500Name): StartedNode<MockNetwork.MockNode> {
// Create a node in the mock network ...
return mockNet.createNode(networkMapAddress, nodeFactory = object : MockNetwork.Factory<MockNetwork.MockNode> {
return mockNet.createNode(nodeFactory = object : MockNetwork.Factory<MockNetwork.MockNode> {
override fun create(config: NodeConfiguration,
network: MockNetwork,
networkMapAddr: SingleMessageRecipient?,
advertisedServices: Set<ServiceInfo>, id: Int,
overrideServices: Map<ServiceInfo, KeyPair>?,
id: Int, notaryIdentity: Pair<ServiceInfo, KeyPair>?,
entropyRoot: BigInteger): MockNetwork.MockNode {
return object : MockNetwork.MockNode(config, network, networkMapAddr, advertisedServices, id, overrideServices, entropyRoot) {
return object : MockNetwork.MockNode(config, network, networkMapAddr, id, notaryIdentity, entropyRoot) {
// That constructs a recording tx storage
override fun makeTransactionStorage(): WritableTransactionStorage {
return RecordingTransactionStorage(database, super.makeTransactionStorage())
@ -329,18 +344,18 @@ class TwoPartyTradeFlowTests {
@Test
fun `check dependencies of sale asset are resolved`() {
mockNet = MockNetwork(false)
val notaryNode = mockNet.createNotaryNode(null, DUMMY_NOTARY.name)
val aliceNode = makeNodeWithTracking(notaryNode.network.myAddress, ALICE.name)
val bobNode = makeNodeWithTracking(notaryNode.network.myAddress, BOB.name)
val bankNode = makeNodeWithTracking(notaryNode.network.myAddress, BOC.name)
val issuer = bankNode.info.chooseIdentity().ref(1, 2, 3)
mockNet = MockNetwork(false, cordappPackages = cordappPackages)
val notaryNode = mockNet.createNotaryNode()
val aliceNode = makeNodeWithTracking(ALICE_NAME)
val bobNode = makeNodeWithTracking(BOB_NAME)
val bankNode = makeNodeWithTracking(BOC_NAME)
mockNet.runNetwork()
notaryNode.internals.ensureRegistered()
val notary = aliceNode.services.getDefaultNotary()
mockNet.registerIdentities()
val alice = aliceNode.info.singleIdentity()
val bob = bobNode.info.singleIdentity()
val bank = bankNode.info.singleIdentity()
val issuer = bank.ref(1, 2, 3)
ledger(aliceNode.services, initialiseSerialization = false) {
@ -356,12 +371,12 @@ class TwoPartyTradeFlowTests {
}
val bobsFakeCash = bobNode.database.transaction {
fillUpForBuyer(false, issuer, AnonymousParty(bobNode.info.chooseIdentity().owningKey), notary)
fillUpForBuyer(false, issuer, AnonymousParty(bob.owningKey), notary)
}.second
val bobsSignedTxns = insertFakeTransactions(bobsFakeCash, bobNode, notaryNode, bankNode)
val alicesFakePaper = aliceNode.database.transaction {
fillUpForSeller(false, issuer, aliceNode.info.chooseIdentity(),
1200.DOLLARS `issued by` bankNode.info.chooseIdentity().ref(0), attachmentID, notary).second
fillUpForSeller(false, issuer, alice,
1200.DOLLARS `issued by` bank.ref(0), attachmentID, notary).second
}
val alicesSignedTxns = insertFakeTransactions(alicesFakePaper, aliceNode, notaryNode, bankNode)
@ -436,19 +451,18 @@ class TwoPartyTradeFlowTests {
@Test
fun `track works`() {
mockNet = MockNetwork(false)
val notaryNode = mockNet.createNotaryNode(null, DUMMY_NOTARY.name)
val aliceNode = makeNodeWithTracking(notaryNode.network.myAddress, ALICE.name)
val bobNode = makeNodeWithTracking(notaryNode.network.myAddress, BOB.name)
val bankNode = makeNodeWithTracking(notaryNode.network.myAddress, BOC.name)
val issuer = bankNode.info.chooseIdentity().ref(1, 2, 3)
mockNet = MockNetwork(false, cordappPackages = cordappPackages)
val notaryNode = mockNet.createNotaryNode()
val aliceNode = makeNodeWithTracking(ALICE_NAME)
val bobNode = makeNodeWithTracking(BOB_NAME)
val bankNode = makeNodeWithTracking(BOC_NAME)
mockNet.runNetwork()
notaryNode.internals.ensureRegistered()
val notary = aliceNode.services.getDefaultNotary()
mockNet.registerIdentities()
val alice: Party = aliceNode.info.singleIdentity()
val bank: Party = bankNode.info.singleIdentity()
val issuer = bank.ref(1, 2, 3)
ledger(aliceNode.services, initialiseSerialization = false) {
// Insert a prospectus type attachment into the commercial paper transaction.
@ -469,8 +483,8 @@ class TwoPartyTradeFlowTests {
insertFakeTransactions(bobsFakeCash, bobNode, notaryNode, bankNode)
val alicesFakePaper = aliceNode.database.transaction {
fillUpForSeller(false, issuer, aliceNode.info.chooseIdentity(),
1200.DOLLARS `issued by` bankNode.info.chooseIdentity().ref(0), attachmentID, notary).second
fillUpForSeller(false, issuer, alice,
1200.DOLLARS `issued by` bank.ref(0), attachmentID, notary).second
}
insertFakeTransactions(alicesFakePaper, aliceNode, notaryNode, bankNode)
@ -519,16 +533,16 @@ class TwoPartyTradeFlowTests {
@Test
fun `dependency with error on buyer side`() {
mockNet = MockNetwork(false)
ledger(initialiseSerialization = false) {
mockNet = MockNetwork(false, cordappPackages = cordappPackages)
ledger(MockServices(cordappPackages), initialiseSerialization = false) {
runWithError(true, false, "at least one cash input")
}
}
@Test
fun `dependency with error on seller side`() {
mockNet = MockNetwork(false)
ledger(initialiseSerialization = false) {
mockNet = MockNetwork(false, cordappPackages = cordappPackages)
ledger(MockServices(cordappPackages), initialiseSerialization = false) {
runWithError(false, true, "Issuances have a time-window")
}
}
@ -543,8 +557,7 @@ class TwoPartyTradeFlowTests {
private fun runBuyerAndSeller(notary: Party,
sellerNode: StartedNode<MockNetwork.MockNode>,
buyerNode: StartedNode<MockNetwork.MockNode>,
assetToSell: StateAndRef<OwnableState>,
anonymous: Boolean = true): RunResult {
assetToSell: StateAndRef<OwnableState>): RunResult {
val buyerFlows: Observable<out FlowLogic<*>> = buyerNode.internals.registerInitiatedFlow(BuyerAcceptor::class.java)
val firstBuyerFiber = buyerFlows.toFuture().map { it.stateMachine }
val seller = SellerInitiator(buyerNode.info.chooseIdentity(), notary, assetToSell, 1000.DOLLARS, anonymous)
@ -595,26 +608,24 @@ class TwoPartyTradeFlowTests {
aliceError: Boolean,
expectedMessageSubstring: String
) {
val notaryNode = mockNet.createNotaryNode(null, DUMMY_NOTARY.name)
val aliceNode = mockNet.createPartyNode(notaryNode.network.myAddress, ALICE.name)
val bobNode = mockNet.createPartyNode(notaryNode.network.myAddress, BOB.name)
val bankNode = mockNet.createPartyNode(notaryNode.network.myAddress, BOC.name)
val issuer = bankNode.info.chooseIdentity().ref(1, 2, 3)
val notaryNode = mockNet.createNotaryNode()
val aliceNode = mockNet.createPartyNode(ALICE_NAME)
val bobNode = mockNet.createPartyNode(BOB_NAME)
val bankNode = mockNet.createPartyNode(BOC_NAME)
mockNet.runNetwork()
notaryNode.internals.ensureRegistered()
val notary = aliceNode.services.getDefaultNotary()
// Let the nodes know about each other - normally the network map would handle this
mockNet.registerIdentities()
val alice = aliceNode.info.singleIdentity()
val bob = bobNode.info.singleIdentity()
val bank = bankNode.info.singleIdentity()
val issuer = bank.ref(1, 2, 3)
val bobsBadCash = bobNode.database.transaction {
fillUpForBuyer(bobError, issuer, bobNode.info.chooseIdentity(),
notary).second
fillUpForBuyer(bobError, issuer, bob, notary).second
}
val alicesFakePaper = aliceNode.database.transaction {
fillUpForSeller(aliceError, issuer, aliceNode.info.chooseIdentity(),
1200.DOLLARS `issued by` issuer, null, notary).second
fillUpForSeller(aliceError, issuer, alice,1200.DOLLARS `issued by` issuer, null, notary).second
}
insertFakeTransactions(bobsBadCash, bobNode, notaryNode, bankNode)
@ -680,8 +691,8 @@ class TwoPartyTradeFlowTests {
// wants to sell to Bob.
val eb1 = transaction(transactionBuilder = TransactionBuilder(notary = notary)) {
// Issued money to itself.
output(Cash.PROGRAM_ID, "elbonian money 1", notary = notary) { 800.DOLLARS.CASH `issued by` issuer `owned by` interimOwner }
output(Cash.PROGRAM_ID, "elbonian money 2", notary = notary) { 1000.DOLLARS.CASH `issued by` issuer `owned by` interimOwner }
output(Cash.PROGRAM_ID, "elbonian money 1", notary = notary) { 800.DOLLARS.CASH issuedBy issuer ownedBy interimOwner }
output(Cash.PROGRAM_ID, "elbonian money 2", notary = notary) { 1000.DOLLARS.CASH issuedBy issuer ownedBy interimOwner }
if (!withError) {
command(issuer.party.owningKey) { Cash.Commands.Issue() }
} else {
@ -699,15 +710,15 @@ class TwoPartyTradeFlowTests {
// Bob gets some cash onto the ledger from BoE
val bc1 = transaction(transactionBuilder = TransactionBuilder(notary = notary)) {
input("elbonian money 1")
output(Cash.PROGRAM_ID, "bob cash 1", notary = notary) { 800.DOLLARS.CASH `issued by` issuer `owned by` owner }
output(Cash.PROGRAM_ID, "bob cash 1", notary = notary) { 800.DOLLARS.CASH issuedBy issuer ownedBy owner }
command(interimOwner.owningKey) { Cash.Commands.Move() }
this.verifies()
}
val bc2 = transaction(transactionBuilder = TransactionBuilder(notary = notary)) {
input("elbonian money 2")
output(Cash.PROGRAM_ID, "bob cash 2", notary = notary) { 300.DOLLARS.CASH `issued by` issuer `owned by` owner }
output(Cash.PROGRAM_ID, notary = notary) { 700.DOLLARS.CASH `issued by` issuer `owned by` interimOwner } // Change output.
output(Cash.PROGRAM_ID, "bob cash 2", notary = notary) { 300.DOLLARS.CASH issuedBy issuer ownedBy owner }
output(Cash.PROGRAM_ID, notary = notary) { 700.DOLLARS.CASH issuedBy issuer ownedBy interimOwner } // Change output.
command(interimOwner.owningKey) { Cash.Commands.Move() }
this.verifies()
}