I have created a counterparty session, issuer signs the transaction by passing in its key to the signInitialTransaction. Then when I call the CollectSignaturesFlow to get the buyer's signature, it throws 'Unable to match key(s)' exception.
No idea what went wrong.
This is my initiator flow.
package com.template.flows;
#InitiatingFlow
#StartableByRPC
public class InitiateTicketMovementFlow extends FlowLogic<String> {
private final String buyer;
private final String issuer;
private final StateRef assetReference;
public InitiateTicketMovementFlow(String buyer, String issuer, String hash, int index) {
this.buyer = buyer;
this.issuer = issuer;
this.assetReference = new StateRef(SecureHash.parse(hash), index);
}
#Override
#Suspendable
public String call() throws FlowException {
final Party notary = getServiceHub().getNetworkMapCache().getNotaryIdentities().get(0);
AccountInfo issuerAccountInfo = UtilitiesKt.getAccountService(this)
.accountInfo(issuer).get(0).getState().getData();
AccountInfo receiverAccountInfo = UtilitiesKt.getAccountService(this)
.accountInfo(buyer).get(0).getState().getData();
AnonymousParty buyerAccount = subFlow(new RequestKeyForAccount(receiverAccountInfo));
QueryCriteria.VaultQueryCriteria queryCriteria = new QueryCriteria.VaultQueryCriteria()
.withStateRefs(ImmutableList.of(assetReference));
StateAndRef<CustomTicket> ticketStateStateAndRef = getServiceHub().getVaultService()
.queryBy(CustomTicket.class, queryCriteria).getStates().get(0);
CustomTicket ticketState = ticketStateStateAndRef.getState().getData();
TransactionBuilder txBuilder = new TransactionBuilder(notary);
MoveTokensUtilities.addMoveNonFungibleTokens(txBuilder, getServiceHub(),
ticketState.toPointer(CustomTicket.class), receiverAccountInfo.getHost());
FlowSession buyerSession = initiateFlow(receiverAccountInfo.getHost());
buyerSession.send(ticketState.getValuation());
List<StateAndRef<FungibleToken>> inputs = subFlow(new ReceiveStateAndRefFlow<>(buyerSession));
List<FungibleToken> moneyReceived = buyerSession.receive(List.class).unwrap(value -> value);
MoveTokensUtilities.addMoveTokens(txBuilder, inputs, moneyReceived);
SignedTransaction selfSignedTransaction = getServiceHub().
signInitialTransaction(txBuilder, ImmutableList.of(issuerAccountInfo.getHost().getOwningKey()));
SignedTransaction signedTransaction = subFlow(new CollectSignaturesFlow(
selfSignedTransaction, Arrays.asList(buyerSession), Collections.singleton(issuerAccountInfo.getHost().getOwningKey())));
SignedTransaction stx = subFlow(new FinalityFlow(
signedTransaction, ImmutableList.of(buyerSession)));
subFlow(new UpdateDistributionListFlow(stx));
return "\nTicket is sold to "+ buyer;
}
}
It SEEMS like the issue here is that you're getting the buyer account the wrong way? Or that the finality flow call might be off. Take a look at our samples on this.
Maybe try something like this to get your account info
AccountInfo targetAccount = accountService.accountInfo(<STRING NAME OF ACCOUNT >).get(0);
src is our corda samples repo: https://github.com/corda/samples-java/blob/master/Accounts/supplychain/workflows/src/main/java/net/corda/samples/supplychain/flows/SendShippingRequest.java#L80
Also, note how different the finality calls look like:
https://github.com/corda/samples-java/blob/master/Accounts/supplychain/workflows/src/main/java/net/corda/samples/supplychain/flows/SendShippingRequest.java#L112
Related
I am trying to use aws sdk2 java for s3 select operations but not able to get extract the final data. Looking for an example if someone has implemented it. I got some idea from [this post][1] but not able to figure out how to get and read the full data .
Fetching specific fields from an S3 document
Basically, equivalent of v1 sdk:
``` InputStream resultInputStream = result.getPayload().getRecordsInputStream(
new SelectObjectContentEventVisitor() {
#Override
public void visit(SelectObjectContentEvent.StatsEvent event)
{
System.out.println(
"Received Stats, Bytes Scanned: " + event.getDetails().getBytesScanned()
+ " Bytes Processed: " + event.getDetails().getBytesProcessed());
}
/*
* An End Event informs that the request has finished successfully.
*/
#Override
public void visit(SelectObjectContentEvent.EndEvent event)
{
isResultComplete.set(true);
System.out.println("Received End Event. Result is complete.");
}
}
);```
///IN AWS SDK2, how do get ResultOutputStream ?
```public byte[] getQueryResults() {
logger.info("V2 query");
S3AsyncClient s3Client = null;
s3Client = S3AsyncClient.builder()
.region(Region.US_WEST_2)
.build();
String fileObjKeyName = "upload/" + filePath;
try{
logger.info("Filepath: " + fileObjKeyName);
ListObjectsV2Request listObjects = ListObjectsV2Request
.builder()
.bucket(Constants.bucketName)
.build();
......
InputSerialization inputSerialization = InputSerialization.builder().
json(JSONInput.builder().type(JSONType.LINES).build()).build()
OutputSerialization outputSerialization = null;
outputSerialization = OutputSerialization.builder().
json(JSONOutput.builder()
.build()
).build();
SelectObjectContentRequest selectObjectContentRequest = SelectObjectContentRequest.builder()
.bucket(Constants.bucketName)
.key(partFilename)
.expression(query)
.expressionType(ExpressionType.SQL)
.inputSerialization(inputSerialization)
.outputSerialization(outputSerialization)
.scanRange(ScanRange.builder().start(0L).end(Constants.limitBytes).build())
.build();
final DataHandler handler = new DataHandler();
CompletableFuture future = s3Client.selectObjectContent(selectObjectContentRequest, handler);
//hold it till we get a end event
EndEvent endEvent = (EndEvent) handler.receivedEvents.stream()
.filter(e -> e.sdkEventType() == SelectObjectContentEventStream.EventType.END)
.findFirst()
.orElse(null);```
//Now, from here how do I get the response bytes ?
///////---> ISSUE: How do I get ResultStream bytes ????
return <bytes>
}```
// handler
private static class DataHandler implements SelectObjectContentResponseHandler {
private SelectObjectContentResponse response;
private List receivedEvents = new ArrayList<>();
private Throwable exception;
#Override
public void responseReceived(SelectObjectContentResponse response) {
this.response = response;
}
#Override
public void onEventStream(SdkPublisher<SelectObjectContentEventStream> publisher) {
publisher.subscribe(receivedEvents::add);
}
#Override
public void exceptionOccurred(Throwable throwable) {
exception = throwable;
}
#Override
public void complete() {
}
} ```
[1]: https://stackoverflow.com/questions/67315601/fetching-specific-fields-from-an-s3-document
i came to your post since I was working on the same issue as to avoid V1.
After hours of searching i ended up with finding the answer at. https://github.com/aws/aws-sdk-java-v2/pull/2943/files
The answer is located at SelectObjectContentIntegrationTest.java File
services/s3/src/it/java/software/amazon/awssdk/services/SelectObjectContentIntegrationTest.java
The way to get the bytes is by using the RecordsEvent class, please note for my use case I used CSV, not sure if this would be different for a different file type.
in the complete method you have access to the receivedEvents. this is where you get the first index to get the filtered returned results and casting it to the RecordsEvent class. then this class provides the payload as bytes
#Override
public void complete() {
RecordsEvent records = (RecordsEvent) this.receivedEvents.get(0)
String result = records.payload().asUtf8String();
}
Hello I am new to apex and soql, I would like some help on my test class, below is the code i am having trouble with,
public class UpdateMyCard {
#AuraEnabled(cacheable=false)
public static Card__c updateCard(Double Amount){
String userId = UserInfo.getUserId();
Card__c myCard = [SELECT Id, Card_no__c, total_spend__c From Card__c Where OwnerId =:userId];
myCard.total_spend__c = myCard.total_spend__c + Amount;
try{
update myCard;
}catch (Exception e) {
System.debug('unable to update the record due to'+e.getMessage());
}
return myCard;
}
}
Test Class
#isTest
public static void updatecard(){
UpdateMyCard.updateCard(200);
}
Error:
System.QueryException: List has no rows for assignment to SObject
Your code assumes there's already a Card record for this user. And it's exactly 1 record (if you have 2 your query will fail). I'm not sure what's your business requirement. Is it guaranteed there will always be such record? Should the code try to create one on the fly if none found? You might have to make that "updateCard" bit more error-resistant. Is the total spend field marked as required? Because "null + 5 = exception"
But anyway - to fix your problem you need something like that in the test.
#isTest
public static void updatecard(){
Card__c = new Card__c(total_spend__c = 100);
insert c;
UpdateMyCard.updateCard(200);
c = [SELECT total_spend__c FROM Card__c WHERE Id = :c.Id];
System.assertEquals(300, c.total_spend__c);
}
Sorry for my stupid question and thank you in advance.
I need to replace the outputvalue in reduce stage(or map stage). However, it will case too many connection in zookeeper. I don't know how to deal with it.
This is my reduce method:
public static class HbaseToHDFSReducer extends Reducer<Text,Text,Text, Text> {
protected void reduce(Text key, Iterable<Text> values, Context context)
throws IOException, InterruptedException {
HashSet<String> address = new HashSet<>();
for(Text item :values){
String city = getDataByRowKey("A1",item.toString());
address.add(city);
}
context.write(key,new Text(String.valueOf(address).replace("\"", "")));
}
This is the query method:
public static String getDataByRowKey(String tableName, String rowKey) throws IOException {
Table table = ConnectionFactory.createConnection(conf).getTable(TableName.valueOf(tableName));
Get get = new Get(rowKey.getBytes());
String data = new String();
if (!get.isCheckExistenceOnly()) {
Result result = table.get(get);
for (Cell cell : result.rawCells()) {
String colName = Bytes.toString(cell.getQualifierArray(), cell.getQualifierOffset(), cell.getQualifierLength());
String value = Bytes.toString(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength());
if (colName.equals(rowKey)) {
data = value;
}
}
}
table.close();
return data;
}
What should I do to solve it?
Thank you again
You created one connection per query, and connection creation is a heavy-weight operation. Maybe you can get a Connection in your reduce method and change
getDataByRowKey(String tableName, String rowKey) to this
getDataByRowKey(Connection connection, String tableName, String rowKey).
I am following the Corda tutorial to build Corda app. Instead of building it in Kotlin, I built it in Java.
I followed the steps provided in the doc and below is my CarIssueInitiator class.
package com.template.flows;
import co.paralleluniverse.fibers.Suspendable;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.template.contracts.CarContract;
import com.template.states.CarState;
import net.corda.core.contracts.Command;
import net.corda.core.contracts.UniqueIdentifier;
import net.corda.core.flows.*;
import net.corda.core.identity.Party;
import net.corda.core.transactions.SignedTransaction;
import net.corda.core.transactions.TransactionBuilder;
import net.corda.core.utilities.ProgressTracker;
import net.corda.core.utilities.ProgressTracker.Step;
import java.util.List;
import java.util.stream.Collectors;
// ******************
// * Initiator flow *
// ******************
#InitiatingFlow
#StartableByRPC
public class CarIssueInitiator extends FlowLogic<SignedTransaction> {
private final Party owningBank;
private final Party holdingDealer;
private final Party manufacturer;
private final String vin;
private final String licensePlateNumber;
private final String make;
private final String model;
private final String dealershipLocation;
private final Step GENERATING_TRANSACTION = new Step("Generating transaction based on new IOU.");
private final Step VERIFYING_TRANSACTION = new Step("Verifying contract constraints.");
private final Step SIGNING_TRANSACTION = new Step("Signing transaction with our private key.");
private final Step GATHERING_SIGS = new Step("Gathering the counterparty's signature.") {
#Override
public ProgressTracker childProgressTracker() {
return CollectSignaturesFlow.Companion.tracker();
}
};
private final Step FINALISING_TRANSACTION = new Step("Obtaining notary signature and recording transaction.") {
#Override
public ProgressTracker childProgressTracker() {
return FinalityFlow.Companion.tracker();
}
};
private final ProgressTracker progressTracker = new ProgressTracker(
GENERATING_TRANSACTION,
VERIFYING_TRANSACTION,
SIGNING_TRANSACTION,
GATHERING_SIGS,
FINALISING_TRANSACTION
);
public CarIssueInitiator(Party owningBank,
Party holdingDealer,
Party manufacturer,
String vin,
String licensePlateNumber,
String make,
String model,
String dealershipLocation){
this.owningBank = owningBank;
this.holdingDealer = holdingDealer;
this.manufacturer = manufacturer;
this.vin = vin;
this.licensePlateNumber = licensePlateNumber;
this.make = make;
this.model = model;
this.dealershipLocation = dealershipLocation;
}
#Override
public ProgressTracker getProgressTracker() {
return progressTracker;
}
#Suspendable
#Override
public SignedTransaction call() throws FlowException {
// Initiator flow logic goes here.
final Party notary = getServiceHub().getNetworkMapCache().getNotaryIdentities().get(0);
// Stage 1.
progressTracker.setCurrentStep(GENERATING_TRANSACTION);
// Generate an unsigned transaction.
Party me = getOurIdentity();
CarState carState = new CarState(this.owningBank,
this.holdingDealer,
this.manufacturer,
this.vin,
this.licensePlateNumber,
this.make,
this.model,
this.dealershipLocation,
new UniqueIdentifier());
final Command<CarContract.Commands.Issue> txCommand = new Command<CarContract.Commands.Issue>(new CarContract.Commands.Issue(),
ImmutableList.of(carState.getOwningBank().getOwningKey(), carState.getHoldingDealer().getOwningKey(), carState.getManufacturer().getOwningKey()));
final TransactionBuilder txBuilder = new TransactionBuilder(notary)
.addOutputState(carState, CarContract.ID)
.addCommand(txCommand);
// Stage 2.
progressTracker.setCurrentStep(VERIFYING_TRANSACTION);
// Verify that the transaction is valid.
txBuilder.verify(getServiceHub());
//Stage 3
progressTracker.setCurrentStep(SIGNING_TRANSACTION);
// Sign the transaction.
final SignedTransaction partSignedTx = getServiceHub().signInitialTransaction(txBuilder);
// Stage 4.
progressTracker.setCurrentStep(GATHERING_SIGS);
// Send the state to the counterparty, and receive it back with their signature.
List<FlowSession> sessions = carState.getParticipants().stream().map(a -> initiateFlow((Destination) a)).collect(Collectors.toList());
//FlowSession session = initiateFlow(me);
final SignedTransaction fullySignedTx = subFlow(
new CollectSignaturesFlow(partSignedTx, sessions, ImmutableList.of(me.getOwningKey()), CollectSignaturesFlow.Companion.tracker()));
// Stage 5.
progressTracker.setCurrentStep(FINALISING_TRANSACTION);
return subFlow(new FinalityFlow(fullySignedTx, sessions));
}
}
I deployed the CordApp and ran the flow. But I ended up with below error
java.lang.IllegalArgumentException: The Initiator of CollectSignaturesFlow must pass in exactly the sessions required to sign the transaction.
at net.corda.core.flows.CollectSignaturesFlow.call(CollectSignaturesFlow.kt:164) ~[corda-core-4.3.jar:?]
at net.corda.core.flows.CollectSignaturesFlow.call(CollectSignaturesFlow.kt:67) ~[corda-core-4.3.jar:?]
at net.corda.node.services.statemachine.FlowStateMachineImpl.subFlow(FlowStateMachineImpl.kt:330) ~[corda-node-4.3.jar:?]
at net.corda.core.flows.FlowLogic.subFlow(FlowLogic.kt:326) ~[corda-core-4.3.jar:?]
at com.template.flows.CarIssueInitiator.call(CarIssueInitiator.java:129) ~[?:?]
at com.template.flows.CarIssueInitiator.call(CarIssueInitiator.java:23) ~[?:?]
at net.corda.node.services.statemachine.FlowStateMachineImpl.run(FlowStateMachineImpl.kt:270) ~[corda-node-4.3.jar:?]
at net.corda.node.services.statemachine.FlowStateMachineImpl.run(FlowStateMachineImpl.kt:46) ~[corda-node-4.3.jar:?]
at co.paralleluniverse.fibers.Fiber.run1(Fiber.java:1092) ~[quasar-core-0.7.10-jdk8.jar:0.7.10]
at co.paralleluniverse.fibers.Fiber.exec(Fiber.java:788) ~[quasar-core-0.7.10-jdk8.jar:0.7.10]
at co.paralleluniverse.fibers.RunnableFiberTask.doExec(RunnableFiberTask.java:100) ~[quasar-core-0.7.10-jdk8.jar:0.7.10]
at co.paralleluniverse.fibers.RunnableFiberTask.run(RunnableFiberTask.java:91) ~[quasar-core-0.7.10-jdk8.jar:0.7.10]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~[?:1.8.0_192]
at java.util.concurrent.FutureTask.run(Unknown Source) ~[?:1.8.0_192]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source) ~[?:1.8.0_192]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source) ~[?:1.8.0_192]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) ~[?:1.8.0_192]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) ~[?:1.8.0_192]
at net.corda.node.utilities.AffinityExecutor$ServiceAffinityExecutor$1$thread$1.run(AffinityExecutor.kt:63) ~[corda-node-4.3.jar:?]
I am not getting what is wrong with the code. Request you to please help me out with this.
UPDATE: With below updated code, it works for me.
//Stage 3
progressTracker.setCurrentStep(SIGNING_TRANSACTION);
// Sign the transaction.
final PublicKey ourSigningKey = getServiceHub().getMyInfo().getLegalIdentities().get(0).getOwningKey();
final SignedTransaction partSignedTx = getServiceHub().signInitialTransaction(txBuilder, ourSigningKey);
// Stage 4.
progressTracker.setCurrentStep(GATHERING_SIGS);
// Send the state to the counterparty, and receive it back with their signature.
FlowSession HoldingDealerPartyFlow = initiateFlow(carState.getHoldingDealer());
FlowSession ManufacturerPartyFlow = initiateFlow(carState.getManufacturer());
final SignedTransaction fullySignedTx = subFlow(new CollectSignaturesFlow(
partSignedTx,
ImmutableSet.of(HoldingDealerPartyFlow, ManufacturerPartyFlow),
ImmutableList.of(ourSigningKey))
);
// Stage 5.
progressTracker.setCurrentStep(FINALISING_TRANSACTION);
return subFlow(new FinalityFlow(fullySignedTx, ImmutableSet.of(HoldingDealerPartyFlow, ManufacturerPartyFlow)));
The list of signers in carState.getParticipants()(see Code A) does not match with the list of signers in ImmutableList of CollectSignaturesFlow (see Code B).
Code A:
List<FlowSession> sessions = carState.getParticipants().stream().map(a -> initiateFlow((Destination) a)).collect(Collectors.toList());
Code B: final SignedTransaction fullySignedTx = subFlow(
new CollectSignaturesFlow(partSignedTx, sessions, ImmutableList.of(me.getOwningKey()), CollectSignaturesFlow.Companion.tracker()));
In the ImmutableList you have to add carState.getOwningBank().getOwningKey(), carState.getHoldingDealer().getOwningKey(), carState.getManufacturer().getOwningKey()
EDITED
Try the following code from "Stage 3" onwards
//Stage 3
progressTracker.setCurrentStep(SIGNING_TRANSACTION);
// Sign the transaction.
//final SignedTransaction partSignedTx = getServiceHub().signInitialTransaction(txBuilder);
val ourSigningKey = serviceHub.myInfo.legalIdentities.first().owningKey
val partSignedTx = serviceHub.signInitialTransaction(tx, ourSigningKey)
// Stage 4.
progressTracker.setCurrentStep(GATHERING_SIGS);
// Send the state to the counterparty, and receive it back with their signature.
//List<FlowSession> sessions = carState.getParticipants().stream().map(a -> initiateFlow((Destination) a)).collect(Collectors.toList());
//FlowSession session = initiateFlow(me);
//final SignedTransaction fullySignedTx = subFlow(
// new CollectSignaturesFlow(partSignedTx, sessions, ImmutableList.of(me.getOwningKey()), CollectSignaturesFlow.Companion.tracker()));
val HoldingDealerPartyFlow = initiateFlow(carState.getHoldingDealer())
val ManufacturerPartyFlow = initiateFlow(carState.getManufacturer())
val fullySignedTx = subFlow(CollectSignaturesFlow(
partSignedTx,
setOf(HoldingDealerPartyFlow ManufacturerPartyFlow),
listOf(ourSigningKey))
)
// Stage 5.
progressTracker.setCurrentStep(FINALISING_TRANSACTION);
//return subFlow(new FinalityFlow(fullySignedTx, sessions));
subFlow(FinalityFlow(fullySignedTx, setOf(HoldingDealerPartyFlow ManufacturerPartyFlow)))
return fullySignedTx.tx.outRef<State>(0)
You should only call initiateFlow() for all participants except for yourself, so your code could be like (the grammar might be wrong, but shows the point):
List<FlowSession> sessions = (carState.getParticipants() - me).stream().map(a -> initiateFlow((Destination) a)).collect(Collectors.toList());
Searched quite a bit. The problem with these errors is that while the text might appear the same, the problem is always different.
My service takes ONE string value and returns a string response. Here is my code:
private class UploadStats extends AsyncTask<String, Void, String>
{
private static final String WSDL_TARGET_NAMESPACE = "http://tempuri.org/";
private static final String SOAP_ADDRESS = "http://192.168.1.101/rss/RSS_Service.asmx?WSDL";
private static final String INSERTURLACTION = "http://192.168.1.101/rss/RSS_Service.asmx/InsertURL";
private static final String INSERTURLMETHOD = "InsertURL";
#Override
protected String doInBackground(String... url)
{
String status = "";
SoapObject request = new SoapObject(WSDL_TARGET_NAMESPACE,
INSERTURLMETHOD);
request.addProperty("url", "www.yahoo.com");
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet = true;
envelope.setOutputSoapObject(request);
HttpTransportSE httpTransport = new HttpTransportSE(SOAP_ADDRESS);
try
{
httpTransport.call(INSERTURLACTION, envelope);
SoapObject response = (SoapObject) envelope.bodyIn;
status = response.getProperty(0).toString();
}
catch (Exception exception)
{
Log.d("Error", exception.toString());
}
if(status.equals("1"))
{
Log.d("InsertURL", "New URL Inserterd");
}
else if(status.equals("0"))
{
Log.d("InsertURL", "URL Exists. Count incremented");
}
else
{
Log.d("InsertURL", "Err... No");
}
return status;
}
}
I get the error:
java.lang.classcastexception org.ksoap2.SoapFault
What am I doing wrong? If any more details are needed, I can add them.
The error was related to the webservice.
An incorrect namespace on the service side can cause this error (as can a lot of other problems).
Best way to check is to run the webservice on the local machine (where the service is hosted).