public DataAsset Decode(RlpStream rlpStream, RlpBehaviors rlpBehaviors = RlpBehaviors.None)
{
try
{
rlpStream.ReadSequenceLength();
Keccak id = rlpStream.DecodeKeccak();
string name = rlpStream.DecodeString();
string description = rlpStream.DecodeString();
UInt256 unitPrice = rlpStream.DecodeUInt256();
DataAssetUnitType unitType = (DataAssetUnitType)rlpStream.DecodeInt();
uint minUnits = rlpStream.DecodeUInt();
uint maxUnits = rlpStream.DecodeUInt();
DataAssetRules rules = Serialization.Rlp.Rlp.Decode <DataAssetRules>(rlpStream);
DataAssetProvider provider = Serialization.Rlp.Rlp.Decode <DataAssetProvider>(rlpStream);
string file = rlpStream.DecodeString();
QueryType queryType = (QueryType)rlpStream.DecodeInt();
DataAssetState state = (DataAssetState)rlpStream.DecodeInt();
string termsAndConditions = rlpStream.DecodeString();
bool kycRequired = rlpStream.DecodeBool();
string plugin = rlpStream.DecodeString();
return(new DataAsset(id, name, description, unitPrice, unitType, minUnits, maxUnits,
rules, provider, file, queryType, state, termsAndConditions, kycRequired, plugin));
}
catch (Exception e)
{
throw new RlpException($"{nameof(DataAsset)} could not be deserialized", e);
}
}
public InMemoryDepositNodesHandler(Keccak depositId, Address consumer, DataAssetUnitType unitType,
uint verificationTimestamp, uint purchasedUnits, UInt256 unitPrice, uint consumedUnits,
uint unpaidUnits, uint unmergedUnits, uint unclaimedUnits, uint graceUnits, uint expiryTime,
PaymentClaim latestPaymentClaim, IEnumerable <DataDeliveryReceiptDetails> receipts,
uint latestReceiptRequestNumber)
{
DepositId = depositId;
Consumer = consumer;
UnitType = unitType;
VerificationTimestamp = verificationTimestamp;
PurchasedUnits = purchasedUnits;
UnitPrice = unitPrice;
_consumedUnits = consumedUnits;
_unpaidUnits = unpaidUnits;
_unmergedUnits = unmergedUnits;
_unclaimedUnits = unclaimedUnits;
_graceUnits = graceUnits;
ExpiryTime = expiryTime;
_latestPaymentClaim = latestPaymentClaim;
_receipts = new ConcurrentStack <DataDeliveryReceiptDetails>(
receipts ?? Enumerable.Empty <DataDeliveryReceiptDetails>());
_latestReceiptRequestNumber = latestReceiptRequestNumber;
var latestReceipt = _receipts.Where(r => !r.IsMerged).OrderBy(r => r.Number).LastOrDefault();
var latestMergedReceipt = _receipts.Where(r => r.IsMerged).OrderBy(r => r.Number).LastOrDefault();
SetLatestReceipt(latestReceipt);
SetLatestReceipt(latestMergedReceipt);
}
private void Test(DataAssetUnitType unitType, uint depositedUnits,
long consumedUnits, uint startTimestamp, ulong nowSeconds, DataAvailability availability)
{
var dataAvailability = _validator.GetAvailability(unitType, depositedUnits, consumedUnits,
startTimestamp, nowSeconds);
dataAvailability.Should().Be(availability);
}
public Builder(Keccak depositId, DataAssetUnitType unitType)
{
_depositId = depositId;
var dataAsset = unitType == DataAssetUnitType.Unit ? CreateDataAsset() : CreateTimeDataAsset();
var dataRequest = CreateDataRequest(dataAsset.Id);
_consumer.DepositId = depositId;
_consumer.Consumer = new Consumer(depositId, 0, dataRequest, dataAsset);
}
private DepositDetails CreateDeposit(DataAssetUnitType type)
{
var deposit = new Deposit(Keccak.Zero, units: 100, expiryTime: 100, value: 10);
var dataAsset = new DataAsset(Keccak.OfAnEmptyString,
name: "TestAsset",
description: "Test",
unitPrice: 10,
unitType: type,
minUnits: 1,
maxUnits: 100,
rules: new DataAssetRules(new DataAssetRule(1)),
provider: new DataAssetProvider(TestItem.AddressA, "provider"));
return(new DepositDetails(deposit,
dataAsset,
consumer: TestItem.AddressB,
pepper: Array.Empty <byte>(),
timestamp: 50,
transactions: Array.Empty <TransactionInfo>()));
}
private async Task VerifyUnitsAsync(DataAssetUnitType unitType, uint paidUnits,
Func <DepositDetails, Session, uint> expectedConsumedUnits,
Func <DepositDetails, Session, uint> expectedUnpaidUnits)
{
var depositId = Keccak.Zero;
var consumedUnitsFromProvider = 10u;
var session = GetConsumerSession(paidUnits);
var deposit = GetDepositDetails(unitType);
_sessionService.GetActive(depositId).Returns(session);
_depositProvider.GetAsync(session.DepositId).Returns(deposit);
await _dataConsumerService.SetUnitsAsync(depositId, consumedUnitsFromProvider);
session.ConsumedUnitsFromProvider.Should().Be(consumedUnitsFromProvider);
session.ConsumedUnits.Should().Be(expectedConsumedUnits(deposit, session));
session.UnpaidUnits.Should().Be(expectedUnpaidUnits(deposit, session));
await _depositProvider.Received(1).GetAsync(depositId);
_sessionService.Received(1).GetActive(depositId);
await _sessionRepository.Received(1).UpdateAsync(session);
}
public DataAvailability GetAvailability(DataAssetUnitType unitType, uint purchasedUnits,
long consumedUnits, uint verificationTimestamp, ulong nowSeconds)
{
switch (unitType)
{
case DataAssetUnitType.Time:
if (verificationTimestamp + purchasedUnits > nowSeconds)
{
return(DataAvailability.Available);
}
return(DataAvailability.SubscriptionEnded);
case DataAssetUnitType.Unit:
if (consumedUnits < purchasedUnits)
{
return(DataAvailability.Available);
}
return(DataAvailability.UnitsExceeded);
default: return(DataAvailability.Available);
}
}
public DataAsset(Keccak id, string name, string description, UInt256 unitPrice,
DataAssetUnitType unitType, uint minUnits, uint maxUnits, DataAssetRules rules,
DataAssetProvider provider, string file = null, QueryType queryType = QueryType.Stream,
DataAssetState state = DataAssetState.Unpublished, string termsAndConditions = null,
bool kycRequired = false, string plugin = null)
{
if (provider == null || string.IsNullOrWhiteSpace(provider.Name) || provider.Address == null)
{
throw new ArgumentException("Invalid data asset provider.", nameof(provider));
}
if (id == Keccak.Zero)
{
throw new ArgumentException("Invalid data asset id.", nameof(id));
}
if (string.IsNullOrWhiteSpace(name) || name.Length > 100)
{
throw new ArgumentException("Invalid data asset name.", nameof(name));
}
if (string.IsNullOrWhiteSpace(description) || description.Length > 256)
{
throw new ArgumentException("Invalid data asset description.", nameof(description));
}
if (termsAndConditions?.Length > 10000)
{
throw new ArgumentException("Invalid terms and conditions (over 10000 chars).", nameof(description));
}
if (rules is null)
{
throw new ArgumentException($"Missing rules.", nameof(rules));
}
if (rules.Expiry is null && rules.Expiry.Value <= 0)
{
throw new ArgumentException($"Invalid expiry rule value: {rules.Expiry}.", nameof(rules.Expiry));
}
if (!(rules.UpfrontPayment is null) && rules.UpfrontPayment.Value > minUnits)
{
throw new ArgumentException($"Min units ({minUnits}) cannot be lower than upfront payment value" +
$" ({rules.UpfrontPayment.Value}).", nameof(minUnits));
}
Provider = provider;
State = state;
Id = id;
Name = name;
Description = description;
UnitPrice = unitPrice;
UnitType = unitType;
QueryType = queryType;
MinUnits = minUnits;
MaxUnits = maxUnits;
Rules = rules;
Provider = provider;
File = file;
State = state;
TermsAndConditions = termsAndConditions;
KycRequired = kycRequired;
SetState(state);
SetPlugin(plugin);
}
private static DataAsset GetDataAsset(DataAssetUnitType unitType)
=> new DataAsset(Keccak.OfAnEmptyString, "test", "test", 1,
unitType, 0, 10, new DataAssetRules(new DataAssetRule(1)),
new DataAssetProvider(Address.Zero, "test"));
private static DepositDetails GetDepositDetails(DataAssetUnitType unitType = DataAssetUnitType.Unit)
=> new DepositDetails(new Deposit(Keccak.Zero, 1, 1, 1),
GetDataAsset(unitType), TestItem.AddressB, Array.Empty <byte>(), 1,
new TransactionInfo(TestItem.KeccakA, 1, 1, 1), DepositConfirmationTimestamp);
public static Builder ForDeposit(Keccak depositId, DataAssetUnitType unitType = DataAssetUnitType.Unit) => new Builder(depositId, unitType);
public IDepositNodesHandler CreateInMemory(Keccak depositId, Address consumer, DataAssetUnitType unitType,
uint verificationTimestamp, uint purchasedUnits, UInt256 unitPrice, uint consumedUnits, uint unpaidUnits,
uint unmergedUnits, uint unclaimedUnits, uint graceUnits, uint expiryTime, PaymentClaim latestPaymentClaim,
IEnumerable <DataDeliveryReceiptDetails> latestReceipts, uint latestReceiptRequestNumber)
=> new InMemoryDepositNodesHandler(depositId, consumer, unitType, verificationTimestamp,
purchasedUnits, unitPrice, consumedUnits, unpaidUnits, unmergedUnits, unclaimedUnits, graceUnits,
expiryTime, latestPaymentClaim, latestReceipts, latestReceiptRequestNumber);