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Split IRS verification into individual functions

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This commit is contained in:
Ross Nicoll 2016-07-12 12:14:59 +01:00
parent 3257640e7f
commit 49b58d8a43
1 changed files with 77 additions and 70 deletions
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33
contracts/src/main/kotlin/com/r3corda/contracts/IRS.kt
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@ -504,8 +504,17 @@ class InterestRateSwap() : Contract {
for ((inputs, outputs, key) in groups) {
when (command.value) {
is Commands.Agree -> {
val irs = outputs.filterIsInstance<InterestRateSwap.State>().single()
is Commands.Agree -> verifyAgree(inputs, outputs)
is Commands.Fix -> verifyFix(inputs, outputs, tx)
is Commands.Pay -> verifyPay()
is Commands.Mature -> verifyMature(inputs)
else -> throw IllegalArgumentException("Unrecognised verifiable command: ${command.value}")
}
}
}
private fun verifyAgree(inputs: List<State>, outputs: List<State>) {
val irs = outputs.filterIsInstance<State>().single()
requireThat {
"There are no in states for an agreement" by inputs.isEmpty()
"There are events in the fix schedule" by (irs.calculation.fixedLegPaymentSchedule.size > 0)
@ -528,9 +537,10 @@ class InterestRateSwap() : Contract {
checkLegAmounts(arrayOf(irs.fixedLeg, irs.floatingLeg))
checkLegDates(arrayOf(irs.fixedLeg, irs.floatingLeg))
}
is Commands.Fix -> {
val irs = outputs.filterIsInstance<InterestRateSwap.State>().single()
val prevIrs = inputs.filterIsInstance<InterestRateSwap.State>().single()
private fun verifyFix(inputs: List<State>, outputs: List<State>, tx: TransactionForContract) {
val irs = outputs.filterIsInstance<State>().single()
val prevIrs = inputs.filterIsInstance<State>().single()
val paymentDifferences = getFloatingLegPaymentsDifferences(prevIrs.calculation.floatingLegPaymentSchedule, irs.calculation.floatingLegPaymentSchedule)
// Having both of these tests are "redundant" as far as verify() goes, however, by performing both
@ -562,23 +572,20 @@ class InterestRateSwap() : Contract {
// "The fixing is not in the future " by (fixCommand) // The oracle should not have signed this .
}
}
is Commands.Pay -> {
private fun verifyPay() {
requireThat {
"Payments not supported / verifiable yet" by false
}
}
is Commands.Mature -> {
val irs = inputs.filterIsInstance<InterestRateSwap.State>().single()
private fun verifyMature(inputs: List<State>) {
val irs = inputs.filterIsInstance<State>().single()
requireThat {
"No more fixings to be applied" by (irs.calculation.nextFixingDate() == null)
}
}
else -> throw IllegalArgumentException("Unrecognised verifiable command: ${command.value}")
}
}
}
interface Commands : CommandData {
class Fix : TypeOnlyCommandData(), Commands // Receive interest rate from oracle, Both sides agree
class Pay : TypeOnlyCommandData(), Commands // Not implemented just yet