net.corda.flows.AbstractCashFlow.kt Maven / Gradle / Ivy

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package net.corda.flows

import co.paralleluniverse.fibers.Suspendable
import net.corda.core.crypto.Party
import net.corda.core.flows.FlowException
import net.corda.core.flows.FlowLogic
import net.corda.core.transactions.SignedTransaction
import net.corda.core.utilities.ProgressTracker

/**
 * Initiates a flow that produces an Issue/Move or Exit Cash transaction.
 */
abstract class AbstractCashFlow(override val progressTracker: ProgressTracker) : FlowLogic() {
    companion object {
        object GENERATING_TX : ProgressTracker.Step("Generating transaction")
        object SIGNING_TX : ProgressTracker.Step("Signing transaction")
        object FINALISING_TX : ProgressTracker.Step("Finalising transaction")

        fun tracker() = ProgressTracker(GENERATING_TX, SIGNING_TX, FINALISING_TX)
    }

    @Suspendable
    internal fun finaliseTx(participants: Set, tx: SignedTransaction, message: String) {
        try {
            subFlow(FinalityFlow(tx, participants))
        } catch (e: NotaryException) {
            throw CashException(message, e)
        }
    }
}

class CashException(message: String, cause: Throwable) : FlowException(message, cause)