com.icodici.universa.contract.Contract.getTransactionPack java code examples

Common ways to obtain Contract

private void myMethod () {
 Contract c =new Contract()
String fileName;Contract.fromDslFile(fileName)
Parcel parcel;parcel.getPaymentContract()
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}

/**
 * Pack the contract to the most modern .unicon format, same as {@link TransactionPack#pack()}. Uses bounded {@link
 * TransactionPack} instance to save together the contract, revoking and new items (if any). This is a binary format
 * using to submit for approval. Use {@link #fromPackedTransaction(byte[])} to read this format.
 *
 * @return packed binary form.
 */
public byte[] getPackedTransaction() {
  return getTransactionPack().pack();
}

/**
 * Register a paying parcel.
 *
 * @param contract              must be a sealed binary.
 */
public static Parcel prepareForRegisterPayingParcel(Contract contract, Contract u, int amount, int amountStorage, Set<PrivateKey> uKeys, boolean withTestPayment) throws IOException {
  List<ErrorRecord> errors = contract.getErrors();
  if (errors.size() > 0) {
    report("contract has errors and can't be submitted for registration");
    report("contract id: " + contract.getId().toBase64String());
    addErrors(errors);
  } else {
    Set<PrivateKey> keys = new HashSet<>(keysMapContract().values());
    if (keys != null && keys.size() > 0)
      contract.addSignerKeys(keys);
    Parcel parcel = ContractsService.createPayingParcel(contract.getTransactionPack(), u, amount, amountStorage, uKeys, withTestPayment);
    return parcel;
  }
  return null;
}

@Override
public NImmutableEnvironment getEnvironment(long environmentId) {
  return protect(() -> {
    List<byte[]> smkv = getSmartContractForEnvironmentId(environmentId);
    HashId nContractHashId = HashId.withDigest(smkv.get(2));
    Contract contract = NSmartContract.fromPackedTransaction(smkv.get(0));
    Contract findNContract = contract.getTransactionPack().getSubItem(nContractHashId);
    contract = findNContract == null ? contract : findNContract;
    NSmartContract nSmartContract = (NSmartContract) contract;
    Binder kvBinder = Boss.unpack(smkv.get(1));
    Collection<ContractSubscription> contractSubscriptions = getContractSubscriptions(environmentId);
    Collection<ContractStorage> contractStorages = getContractStorages(environmentId);
    FollowerService followerService = getFollowerService(environmentId);
    List<String> reducedNames = getReducedNames(environmentId);
    List<NameRecord> nameRecords = new ArrayList<>();
    for (String reducedName : reducedNames) {
      NNameRecord nr = getNameRecord(reducedName);
      //nr.setId(nrModel.id);
      nameRecords.add(nr);
    }
    NImmutableEnvironment nImmutableEnvironment = new NImmutableEnvironment(nSmartContract, kvBinder,
        contractSubscriptions, contractStorages, nameRecords, followerService, this);
    nImmutableEnvironment.setId(environmentId);
    return nImmutableEnvironment;
  });
}

@Override
synchronized public Approvable getItem(HashId itemId, NodeInfo nodeInfo, Duration maxTimeout) throws InterruptedException {
  Node node = nodes.get(nodeInfo);
  Approvable item = node.getItem(itemId);
  if(item instanceof Contract) {
    TransactionPack tp_before = ((Contract) item).getTransactionPack();
    byte[] data = tp_before.pack();
    // here we "send" data and "got" it
    TransactionPack tp_after = null;
    try {
      tp_after = TransactionPack.unpack(data);
      Contract gotMainContract = tp_after.getContract();
      return gotMainContract;
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
  return item;
}

/**
 * Imitate of sending contract from one part of swappers to another.
 *
 * Method packs sending contracts with main swap contract (can be blank - doesn't matter) into TransactionPack.
 * Then restore from packed binary main swap contract, contracts sending with.
 *
 * @param mainContract
 * @return
 * @throws Exception
 */
public synchronized Contract imitateSendingTransactionToPartner(Contract mainContract) throws Exception {
  TransactionPack tp_before = mainContract.getTransactionPack();
  byte[] data = tp_before.pack();
  // here we "send" data and "got" it
  TransactionPack tp_after = TransactionPack.unpack(data);
  Contract gotMainContract = tp_after.getContract();
  return gotMainContract;
}

/**
 * Create paid transaction, which consist from contract you want to register and payment contract that will be
 * spend to process transaction.
 * <br><br>
 *
 * @param payload         is prepared contract you want to register in the Universa.
 * @param payment is approved contract with "U" belongs to you.
 * @param amount is number of "U" you want to spend to register payload contract.
 * @param keys            is own private keys, which are set as owner of payment contract
 * @param withTestPayment if true {@link Parcel} will be created with test payment
 * @return parcel, it ready to send to the Universa.
 */
public synchronized static Parcel createParcel(Contract payload, Contract payment, int amount, Set<PrivateKey> keys,
                        boolean withTestPayment) {
  Contract paymentDecreased = payment.createRevision(keys);
  paymentDecreased.getTransactionalData().set("id",payload.getId().toBase64String());
  if (withTestPayment) {
    paymentDecreased.getStateData().set("test_transaction_units", payment.getStateData().getIntOrThrow("test_transaction_units") - amount);
  } else {
    paymentDecreased.getStateData().set("transaction_units", payment.getStateData().getIntOrThrow("transaction_units") - amount);
  }
  paymentDecreased.seal();
  Parcel parcel = new Parcel(payload.getTransactionPack(), paymentDecreased.getTransactionPack());
  return parcel;
}

checkSimplePack(tp);
assertSame(tp,c.getTransactionPack());
assertSame(tp1,c1.getTransactionPack());

@Test
public void shouldTransferTheSameValue() throws Exception {
  Decimal valueToSend = new Decimal(5);
  List<Contract> listOfCoinsWithAmount = createListOfCoinsWithAmount(Arrays.asList(5));
  List<Wallet> wallets = Wallet.determineWallets(listOfCoinsWithAmount);
  assertEquals(1, wallets.size());
  assertEquals(1, wallets.get(0).getContracts().size());
  Wallet wallet = wallets.get(0);
  Contract contract = wallet.buildContractWithValue(FIELD_NAME, valueToSend);
  contract.addSignerKeyFromFile(PRIVATE_KEY_PATH);
  sealCheckTrace(contract, true);
  assertEquals(0, wallet.getContracts().size());
  TransactionPack tp = contract.getTransactionPack();
  Contract contractToSend = new Contract(contract.seal(), tp);
  contractToSend.addSignerKeyFromFile(PRIVATE_KEY_PATH);
  sealCheckTrace(contractToSend, true);
  assertEquals(valueToSend.intValue(), contractToSend.getStateData().getIntOrThrow(FIELD_NAME));
}

/**
 * Create paid transaction, which consist from prepared TransactionPack you want to register
 * and payment contract that will be
 * spend to process transaction.
 * <br><br>
 *
 * @param payload         is prepared TransactionPack you want to register in the Universa.
 * @param payment is approved contract with "U" belongs to you.
 * @param amount is number of "U" you want to spend to register payload contract.
 * @param keys            is own private keys, which are set as owner of payment contract
 * @param withTestPayment if true {@link Parcel} will be created with test payment
 * @return parcel, it ready to send to the Universa.
 */
public synchronized static Parcel createParcel(TransactionPack payload, Contract payment, int amount, Set<PrivateKey> keys,
                        boolean withTestPayment) {
  Contract paymentDecreased = payment.createRevision(keys);
  if (withTestPayment) {
    paymentDecreased.getStateData().set("test_transaction_units", payment.getStateData().getIntOrThrow("test_transaction_units") - amount);
  } else {
    paymentDecreased.getStateData().set("transaction_units", payment.getStateData().getIntOrThrow("transaction_units") - amount);
  }
  paymentDecreased.seal();
  Parcel parcel = new Parcel(payload, paymentDecreased.getTransactionPack());
  return parcel;
}

@Test
public void shouldTransferSumOf7() throws Exception {
  Decimal valueToSend = new Decimal(280);
  List<Contract> listOfCoinsWithAmount = createListOfCoinsWithAmount(Arrays.asList(5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60));
  List<Wallet> wallets = Wallet.determineWallets(listOfCoinsWithAmount);
  assertEquals(1, wallets.size());
  assertEquals(12, wallets.get(0).getContracts().size());
  Wallet wallet = wallets.get(0);
  Contract contract = wallet.buildContractWithValue(FIELD_NAME, valueToSend);
  contract.addSignerKeyFromFile(PRIVATE_KEY_PATH);
  sealCheckTrace(contract, true);
  assertEquals(6, wallet.getContracts().size());
  TransactionPack tp = contract.getTransactionPack();
  Contract contractToSend = new Contract(contract.seal(), tp);
  contractToSend.addSignerKeyFromFile(PRIVATE_KEY_PATH);
  sealCheckTrace(contractToSend, true);
  assertEquals(valueToSend.intValue(), contractToSend.getStateData().getIntOrThrow(FIELD_NAME));
}

@Test
public void shouldTransferAmountFromCoupleContracts() throws Exception {
  Decimal valueToSend = new Decimal(70);
  List<Contract> listOfCoinsWithAmount = createListOfCoinsWithAmount(Arrays.asList(50, 45));
  List<Wallet> wallets = Wallet.determineWallets(listOfCoinsWithAmount);
  assertEquals(1, wallets.size());
  assertEquals(2, wallets.get(0).getContracts().size());
  //gonna send 70 but I have 2 contracts (50, 45)
  Wallet wallet = wallets.get(0);
  Contract contract = wallet.buildContractWithValue(FIELD_NAME, valueToSend);
  contract.addSignerKeyFromFile(PRIVATE_KEY_PATH);
  assertEquals(1, wallet.getContracts().size());
  sealCheckTrace(contract, true);
  TransactionPack tp = contract.getTransactionPack();
  Contract contractToSend = new Contract(contract.seal(), tp);
  contractToSend.addSignerKeyFromFile(PRIVATE_KEY_PATH);
  sealCheckTrace(contractToSend, true);
  assertEquals(valueToSend.intValue(), contractToSend.getStateData().getIntOrThrow(FIELD_NAME));
}

@Test(timeout = 90000)
public void declinePaymentAndPaymentWithChangedData2() throws Exception {
  Set<PrivateKey> stepaPrivateKeys = new HashSet<>();
  stepaPrivateKeys.add(new PrivateKey(Do.read(ROOT_PATH + "keys/stepan_mamontov.private.unikey")));
  Contract uContract = getApprovedUContract();
  // stepaPrivateKeys - is also U keys
  Contract paymentDecreased = uContract.createRevision(stepaPrivateKeys);
  paymentDecreased.getStateData().set("transaction_units", uContract.getStateData().getIntOrThrow("transaction_units") - 5);
  paymentDecreased.seal();
  Contract modifiedU = paymentDecreased.createRevision(stepaPrivateKeys);
  modifiedU.getStateData().set("transaction_units", modifiedU.getStateData().getIntOrThrow("transaction_units") - 1);
  modifiedU.seal();
  Parcel parcel = new Parcel(modifiedU.getTransactionPack(), paymentDecreased.getTransactionPack());
  System.out.println("-------------");
  node.registerParcel(parcel);
  synchronized (uContractLock) {
    uContract = parcel.getPaymentContract();
  }
  waitAndCheckState(parcel, ItemState.UNDEFINED);
}

  @Test
  public void packAndUnpackWithKeys() throws Exception {
    TransactionPack tp = new TransactionPack();
    tp.setContract(c);
//        tp.addKeys(publicKey);
    checkPackWithKeys(tp);

    assertSame(tp,c.getTransactionPack());

    byte[] packedTp = tp.pack();

    TransactionPack tp1 = TransactionPack.unpack(packedTp);
    checkPackWithKeys(tp1);
  }

@Test
public void shouldTransferAndSplitRest() throws Exception {
  Decimal valueToSend = new Decimal(15);
  List<Contract> listOfCoinsWithAmount = createListOfCoinsWithAmount(Arrays.asList(1, 2, 3, 5, 8));
  List<Wallet> wallets = Wallet.determineWallets(listOfCoinsWithAmount);
  assertEquals(1, wallets.size());
  assertEquals(5, wallets.get(0).getContracts().size());
  Wallet wallet = wallets.get(0);
  Contract contract = wallet.buildContractWithValue(FIELD_NAME, valueToSend);
  contract.addSignerKeyFromFile(PRIVATE_KEY_PATH);
  assertEquals(1, wallet.getContracts().size());
  sealCheckTrace(contract, true);
  Contract restContract = wallet.getContracts().get(0);
  assertEquals(4, restContract.getStateData().getIntOrThrow(FIELD_NAME));
  sealCheckTrace(restContract, true);
  contract.seal();
  TransactionPack tp = contract.getTransactionPack();
  Contract contractToSend = new Contract(contract.seal(), tp);
  contractToSend.addSignerKeyFromFile(PRIVATE_KEY_PATH);
  sealCheckTrace(contractToSend, true);
  assertEquals(valueToSend.intValue(), contractToSend.getStateData().getIntOrThrow(FIELD_NAME));
}

transactionRoot.getIssuer().addRequiredReference("ref1", Role.RequiredMode.ALL_OF);
transactionRoot.seal();
transactionRoot.getTransactionPack().addReferencedItem(referencedContract2);
transactionRoot.getTransactionPack().addReferencedItem(referencedContract);
assertTrue(transactionRoot.check());

transactionRoot.addReference(rootReference);
transactionRoot.seal();
transactionRoot.getTransactionPack().addReferencedItem(referencedContract);

transactionRoot.getIssuer().addRequiredReference("ref1", Role.RequiredMode.ALL_OF);
transactionRoot.seal();
transactionRoot.getTransactionPack().addReferencedItem(referencedContract2);
transactionRoot.getTransactionPack().addReferencedItem(referencedContract);
assertTrue(transactionRoot.check());

@Test
public void revokeDifferentNameValidRefRoleNotRegistered() throws Exception {
  Contract referencedContract = new Contract(key1);
  referencedContract.seal();
  Contract revokingContract = new Contract(key2);
  Reference revokeReference = new Reference(revokingContract);
  revokeReference.setName("ref1");
  ArrayList<String> revokeCondtitions = new ArrayList<>();
  revokeCondtitions.add("ref.id=="+referencedContract.getId().toBase64String());
  revokeReference.setConditions(Binder.of("all_of",revokeCondtitions));
  revokingContract.addReference(revokeReference);
  SimpleRole role = new SimpleRole("@revoke");
  role.addRequiredReference(revokeReference.getName(), Role.RequiredMode.ALL_OF);
  RevokePermission permission = new RevokePermission(role);
  revokingContract.addPermission(permission);
  revokingContract.seal();
  Contract transactionRoot = new Contract(key3);
  transactionRoot.addRevokingItems(revokingContract);
  Reference rootReference = new Reference(transactionRoot);
  rootReference.setName("ref2");
  ArrayList<String> rootConditions = new ArrayList<>();
  rootConditions.add("ref.id=="+referencedContract.getId().toBase64String());
  rootReference.setConditions(Binder.of("all_of",rootConditions));
  transactionRoot.addReference(rootReference);
  transactionRoot.seal();
  transactionRoot.getTransactionPack().addReferencedItem(referencedContract);
  transactionRoot = Contract.fromPackedTransaction(transactionRoot.getPackedTransaction());
  transactionRoot.check();
  assertTrue(transactionRoot.isOk());
}

transactionRoot.addReference(rootReference);
transactionRoot.seal();
transactionRoot.getTransactionPack().addReferencedItem(referencedContract);

contract.getTransactionPack().addReferencedItem(goodReferencedContract);

Javadoc

Get transaction pack of the contract

Popular methods of Contract

<init>
Extract old, deprecated v2 self-contained binary partially unpacked by the TransactionPack, and fill
addNewItems
Add one or more siblings to the contract. Note that those must be sealed before calling #seal() or #
addSignerKey
Add private key to keys contract binary to be signed with when sealed next time. It is called before
getExpiresAt
Get contract expiration time
getId
Get the id sealing self if need
getPackedTransaction
Pack the contract to the most modern .unicon format, same as TransactionPack#pack(). Uses bounded Tr
registerRole
Register new role. Name must be unique otherwise existing role will be overwritten
seal
Seal contract to binary. This call adds signatures from #getKeysToSignWith()
addSignatureToSeal
Add signature to sealed (before) contract. Do not deserializing or changing contract bytes, but will
check
createRevision
Create new revision to be changed, signed sealed and then ready to approve. Created "revision" contr
fromDslFile
Create contract importing its parameters with passed .yaml file. No signatures are added automatical

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How to use getTransactionPackmethodin com.icodici.universa.contract.Contract

Best Java code snippets using com.icodici.universa.contract.Contract.getTransactionPack (Showing top 20 results out of 315)

How to use
getTransactionPack
method
in
com.icodici.universa.contract.Contract