public PingPongProcessor(string party, string ledgerId, Channel channel, Identifier pingIdentifier, Identifier pongIdentifier)
{
_party = party;
_ledgerId = ledgerId;
_transactionService = new TransactionService.TransactionServiceClient(channel);
_submissionService = new CommandSubmissionService.CommandSubmissionServiceClient(channel);
_pingIdentifier = pingIdentifier;
_pongIdentifier = pongIdentifier;
}
/// <summary>
/// Creates numContracts number of Ping contracts.The sender is used as the submitting party.
/// </summary>
/// <param name="channel">the gRPC channel to use for services</param>
/// <param name="ledgerId">the previously fetched ledger id</param>
/// <param name="sender">the party that sends the initial Ping contract</param>
/// <param name="receiver">the party that receives the initial Ping contract</param>
/// <param name="pingIdentifier">the PingPong.Ping template identifier</param>
/// <param name="numContracts">the number of initial contracts to create</param>
private static void CreateInitialContracts(Channel channel, string ledgerId, string sender, string receiver, Identifier pingIdentifier, int numContracts)
{
var submissionService = new CommandSubmissionService.CommandSubmissionServiceClient(channel);
var record = new Record {
RecordId = pingIdentifier
}; // the identifier for a template's record is the same as the identifier for the template
record.Fields.Add(new[] { new RecordField {
Label = "sender", Value = new Value {
Party = sender
}
},
new RecordField {
Label = "receiver", Value = new Value {
Party = receiver
}
},
new RecordField {
Label = "count", Value = new Value {
Int64 = 0
}
} });
var createCommand = new Command {
Create = new CreateCommand {
TemplateId = pingIdentifier, CreateArguments = record
}
};
for (int i = 0; i < numContracts; i++)
{
var submitRequest = new SubmitRequest
{
Commands = new Commands
{
LedgerId = ledgerId,
// set current time to ledger effective time (LET)
LedgerEffectiveTime = new Google.Protobuf.WellKnownTypes.Timestamp {
Seconds = 0
},
// set maximum record time (MRT) to now + 5s
MaximumRecordTime = new Google.Protobuf.WellKnownTypes.Timestamp {
Seconds = 5
},
CommandId = Guid.NewGuid().ToString(),
WorkflowId = $"Ping-{sender}-{i}",
Party = sender,
ApplicationId = APP_ID
}
};
submitRequest.Commands.Commands_.Add(createCommand);
// asynchronously send the commands
submissionService.SubmitAsync(submitRequest);
}
}
