djmil/corda-checkers
djmil/corda-checkers
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.getTransaction()

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djmil 2023-11-28 21:34:40 +01:00
parent 946721c40e
commit 098645710f
1 changed files with 23 additions and 25 deletions
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48
corda/workflows/src/main/java/djmil/cordacheckers/gamestate/CommitTrxResponder.java
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@ -12,14 +12,14 @@ import net.corda.v5.application.membership.MemberLookup;
import net.corda.v5.application.messaging.FlowSession; import net.corda.v5.application.messaging.FlowSession;
import net.corda.v5.base.annotations.Suspendable; import net.corda.v5.base.annotations.Suspendable;
import net.corda.v5.base.exceptions.CordaRuntimeException; import net.corda.v5.base.exceptions.CordaRuntimeException;
import net.corda.v5.base.types.MemberX500Name;
import net.corda.v5.ledger.utxo.UtxoLedgerService; import net.corda.v5.ledger.utxo.UtxoLedgerService;
import net.corda.v5.ledger.utxo.transaction.UtxoLedgerTransaction; import net.corda.v5.ledger.utxo.transaction.UtxoLedgerTransaction;
import net.corda.v5.ledger.utxo.transaction.UtxoSignedTransaction;
import net.corda.v5.ledger.utxo.transaction.UtxoTransactionValidator; import net.corda.v5.ledger.utxo.transaction.UtxoTransactionValidator;
@InitiatedBy(protocol = "gamestate-commit") @InitiatedBy(protocol = "gamestate-commit")
public class CommitTrxResponder implements ResponderFlow { public class CommitTrxResponder implements ResponderFlow {
private final static Logger log = LoggerFactory.getLogger(CommitTrxResponder.class); private final static Logger log = LoggerFactory.getLogger(CommitTrxResponder.class);
@CordaInject @CordaInject
@ -27,12 +27,12 @@ public class CommitTrxResponder implements ResponderFlow {
@CordaInject @CordaInject
public UtxoLedgerService utxoLedgerService; public UtxoLedgerService utxoLedgerService;
@Suspendable @Suspendable
@Override @Override
public void call(FlowSession session) { public void call(FlowSession session) {
UtxoTransactionValidator txValidator = trxToValidate -> { try {
try { UtxoTransactionValidator txValidator = trxToValidate -> {
checkParticipants(session, trxToValidate); checkParticipants(session, trxToValidate);
/* /*
@ -40,42 +40,40 @@ public class CommitTrxResponder implements ResponderFlow {
*/ */
log.info("Approval for " + trxToValidate.getId()); log.info("Approval for " + trxToValidate.getId());
} catch (Exception e) { };
log.warn("Validation has failed. " +e.getMessage());
// We have to re-trow an exception to indicate validation failure
throw new CordaRuntimeException(e.getClass().getCanonicalName(), e.getMessage(), e.getCause());
}
};
try { UtxoSignedTransaction finalizedSignedTransaction = this.utxoLedgerService
this.utxoLedgerService .receiveFinality(session, txValidator)
.receiveFinality(session, txValidator); .getTransaction();
log.info("Finished responder flow - " + finalizedSignedTransaction.getId());
} catch (Exception e) { } catch (Exception e) {
// Log Corda's specific message about finality validation failure // Log Corda's specific message about finality validation failure
log.warn(e.getMessage()); log.warn(e.getMessage());
} }
} }
@Suspendable @Suspendable
void checkParticipants(FlowSession session, UtxoLedgerTransaction gameStateUtxo) throws ParticipantException { void checkParticipants(FlowSession session, UtxoLedgerTransaction gameStateUtxo) {
final GameInfo info = new GameInfo(gameStateUtxo); final GameInfo info = new GameInfo(gameStateUtxo);
final var conterpartyName = session.getCounterparty(); final var conterpartyName = session.getCounterparty();
if (info.issuer.compareTo(conterpartyName) != 0) if (info.issuer.compareTo(conterpartyName) != 0)
throw new ParticipantException("Issuer", conterpartyName, info.issuer); throw new CordaRuntimeException("Bad Issuer. Expected: " + conterpartyName + " actual: " + info.issuer);
final var myInfo = memberLookup.myInfo(); final var myInfo = memberLookup.myInfo();
if (VNode.isCordaCherckersCustodian(myInfo)) if (VNode.isCordaCherckersCustodian(myInfo))
return; // Custodian shall not validate state's counterparty return; // Custodian shall not validate state's counterparty
final var opponentName = info.state.getOpponentName(myInfo.getName()); // throws NotInvolved final var opponentName = info.state.getOpponentName(myInfo.getName()); // throws NotInvolved
if (conterpartyName.compareTo(opponentName) != 0) if (conterpartyName.compareTo(opponentName) != 0)
throw new ParticipantException("Opponent", conterpartyName, opponentName); throw new CordaRuntimeException("Bad Opponent. Expcted: " + conterpartyName + " axtual: " + opponentName);
}
public static class ParticipantException extends Exception {
public ParticipantException(String role, MemberX500Name expected, MemberX500Name actual) {
super("Bad participants. " +role +" role: expected '" +expected +"', actual '" +actual +"'");
}
} }
// public static class ParticipantException extends Exception {
// public ParticipantException(String role, MemberX500Name expected,
// MemberX500Name actual) {
// super("Bad participants. " +role +" role: expected '" +expected +"', actual
// '" +actual +"'");
// }
// }
} }