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Contracts: JavaCommercialPaper should implement equals/hashCode on its version of the state class and use the same grouping logic as the Kotlin version.

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This commit is contained in:
Mike Hearn 2015-11-25 14:26:17 +01:00
parent 5285d3bb47
commit c026e90067
1 changed files with 28 additions and 3 deletions
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31
src/contracts/JavaCommercialPaper.java
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@ -3,7 +3,6 @@ package contracts;
import core.*;
import core.TransactionForVerification.*;
import core.serialization.*;
import kotlin.*;
import org.jetbrains.annotations.*;
import java.security.*;
@ -56,6 +55,33 @@ public class JavaCommercialPaper implements Contract {
public SecureHash getProgramRef() {
return SecureHash.Companion.sha256("java commercial paper (this should be a bytecode hash)");
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
State state = (State) o;
if (issuance != null ? !issuance.equals(state.issuance) : state.issuance != null) return false;
if (owner != null ? !owner.equals(state.owner) : state.owner != null) return false;
if (faceValue != null ? !faceValue.equals(state.faceValue) : state.faceValue != null) return false;
return !(maturityDate != null ? !maturityDate.equals(state.maturityDate) : state.maturityDate != null);
}
@Override
public int hashCode() {
int result = issuance != null ? issuance.hashCode() : 0;
result = 31 * result + (owner != null ? owner.hashCode() : 0);
result = 31 * result + (faceValue != null ? faceValue.hashCode() : 0);
result = 31 * result + (maturityDate != null ? maturityDate.hashCode() : 0);
return result;
}
public State withoutOwner() {
return new State(issuance, NullPublicKey.INSTANCE, faceValue, maturityDate);
}
}
public static class Commands implements core.Command {
@ -78,8 +104,7 @@ public class JavaCommercialPaper implements Contract {
public void verify(@NotNull TransactionForVerification tx) {
// There are two possible things that can be done with CP. The first is trading it. The second is redeeming it
// for cash on or after the maturity date.
List<InOutGroup<State>> groups =
tx.groupStates(State.class, state -> new Pair<>(state.getIssuance(), state.faceValue.getCurrency()));
List<InOutGroup<State>> groups = tx.groupStates(State.class, State::withoutOwner);
// Find the command that instructs us what to do and check there's exactly one.
AuthenticatedObject<Command> cmd = requireSingleCommand(tx.getCommands(), Commands.class);