com.icodici.universa.contract.Contract.getStateData 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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}

private boolean checkContractCorrespondsToConfig(Contract contract, List<NodeInfo> netNodes) {
  //check if contract contains net config
  if(!checkIfContractContainsNetConfig(contract)) {
    return false;
  }
  //check if net config equals to current network configuration
  List<NodeInfo> contractNodes = DefaultBiMapper.getInstance().deserializeObject(contract.getStateData().get("net_config"));
  if(contractNodes.size() != netNodes.size() || !contractNodes.stream().allMatch(nodeInfo -> netNodes.contains(nodeInfo))) {
    return false;
  }
  return true;
}

private Decimal getValue(Contract c, String fieldName) {
  return new Decimal(c.getStateData().getStringOrThrow(fieldName));
}

@Test
public void shouldModifyAnyValueForKey() throws  Exception {
  Contract c = basicContractCreation(SUBSCRIPTION_WITH_DATA, PRIVATE_KEY, ownerKey2);
  Binder d = c.getStateData();
  Contract c1 = c.createRevision(ownerKey2);
  Binder d1 = c1.getStateData();
  final String oldValue = "35";
  final String newValue = "303434935245";
  final String field = "units";
  setAndCheckOldNewValues(d, d1, oldValue, newValue, field);
  sealCheckTrace(c1, true);
}

@Test
public void shouldModifyStateDataValues() throws  Exception {
  Contract c = basicContractCreation(SUBSCRIPTION_WITH_DATA, PRIVATE_KEY, ownerKey2);
  Binder d = c.getStateData();
  Contract c1 = c.createRevision(ownerKey2);
  Binder d1 = c1.getStateData();
  final String oldValue = "An example of smart contract.";
  final String newValue = "UniversaSmartContract";
  final String field = "description";
  setAndCheckOldNewValues(d, d1, oldValue, newValue, field);
  sealCheckTrace(c1, true);
}

  public Contract createUnsPayment() throws IOException {

    PrivateKey ownerKey = new PrivateKey(Do.read(rootPath + "keys/stepan_mamontov.private.unikey"));
    Set<PublicKey> keys = new HashSet();
    keys.add(ownerKey.getPublicKey());
    Contract stepaU = InnerContractsService.createFreshU(100000000, keys);
    Contract paymentDecreased = stepaU.createRevision(ownerKey);
    paymentDecreased.getStateData().set("transaction_units", stepaU.getStateData().getIntOrThrow("transaction_units") - 2000);
    paymentDecreased.seal();

    return paymentDecreased;
  }
}

  public Contract createSlotPayment() throws IOException {

    PrivateKey ownerKey = new PrivateKey(Do.read(rootPath + "keys/stepan_mamontov.private.unikey"));
    Set<PublicKey> keys = new HashSet();
    keys.add(ownerKey.getPublicKey());
    Contract stepaU = InnerContractsService.createFreshU(100000000, keys);
    Contract paymentDecreased = stepaU.createRevision(ownerKey);
    paymentDecreased.getStateData().set("transaction_units", stepaU.getStateData().getIntOrThrow("transaction_units") - 100);
    paymentDecreased.seal();

    return paymentDecreased;
  }
}

@Test
public void shouldPopulateWithEmptyStateDataValues() throws  Exception {
  PrivateKey ownerKey2 = TestKeys.privateKey(1);
  Contract c = basicContractCreation(SUBSCRIPTION_WITH_DATA, PRIVATE_KEY, ownerKey2);
  Binder d = c.getStateData();
  Contract c1 = c.createRevision(ownerKey2);
  Binder d1 = c1.getStateData();
  final String oldValue = "An example of smart contract.";
  final String newValue = "";
  final String field = "description";
  setAndCheckOldNewValues(d, d1, oldValue, newValue, field);
  sealCheckTrace(c1, true);
}

@Test
public void shouldNotModifyStateDataValues() throws  Exception {
  PrivateKey ownerKey2 = TestKeys.privateKey(1);
  Contract c = basicContractCreation(SUBSCRIPTION_WITH_DATA, PRIVATE_KEY, ownerKey2);
  Binder d = c.getStateData();
  Contract c1 = c.createRevision(ownerKey2);
  Binder d1 = c1.getStateData();
  final String oldValue = "1";
  final String newValue = "2";
  final String field = "option";
  setAndCheckOldNewValues(d, d1, oldValue, newValue, field);
  sealCheckTrace(c1, false);
}

@Test
public void shouldModifyDescNullStateDataValues() throws  Exception {
  PrivateKey ownerKey2 = TestKeys.privateKey(1);
  Contract c = basicContractCreation(SUBSCRIPTION_WITH_DATA, PRIVATE_KEY, ownerKey2);
  Binder d = c.getStateData();
  Contract c1 = c.createRevision(ownerKey2);
  Binder d1 = c1.getStateData();
  final String oldValue = "An example of smart contract.";
  final String newValue = null;
  final String field = "description";
  setAndCheckOldNewValues(d, d1, oldValue, newValue, field);
  sealCheckTrace(c1, true);
}

@Test
public void shouldNotPopulateWithNullStateDataValues() throws  Exception {
  PrivateKey ownerKey2 = TestKeys.privateKey(1);
  Contract c = basicContractCreation(SUBSCRIPTION_WITH_DATA, PRIVATE_KEY, ownerKey2);
  Binder d = c.getStateData();
  Contract c1 = c.createRevision(ownerKey2);
  Binder d1 = c1.getStateData();
  final String oldValue = "2";
  final String newValue = null;
  final String field = "direction";
  setAndCheckOldNewValues(d, d1, oldValue, newValue, field);
  sealCheckTrace(c1, false);
}

@Test
public void shouldNotPopulateWithEmptyStateDataValues() throws  Exception {
  PrivateKey ownerKey2 = TestKeys.privateKey(1);
  Contract c = basicContractCreation(SUBSCRIPTION_WITH_DATA, PRIVATE_KEY, ownerKey2);
  Binder d = c.getStateData();
  Contract c1 = c.createRevision(ownerKey2);
  Binder d1 = c1.getStateData();
  final String oldValue = "2";
  final String newValue = "";
  final String field = "direction";
  setAndCheckOldNewValues(d, d1, oldValue, newValue, field);
  sealCheckTrace(c1, false);
}

@Test
public void shouldNotModifyDescEmptyStateDataValues() throws  Exception {
  PrivateKey ownerKey2 = TestKeys.privateKey(1);
  Contract c = basicContractCreation(SUBSCRIPTION_WITH_DATA, PRIVATE_KEY, ownerKey2);
  Binder d = c.getStateData();
  Contract c1 = c.createRevision(ownerKey2);
  Binder d1 = c1.getStateData();
  final String oldValue = "An example of smart contract.";
  final String newValue = "wrong value.";
  final String field = "description";
  setAndCheckOldNewValues(d, d1, oldValue, newValue, field);
  sealCheckTrace(c1, false);
}

@Test(timeout = 90000)
public void checkPayment_wrongUname() throws Exception {
  Contract payment = checkPayment_preparePaymentContract(checkPayment_preparePrivateKeys());
  payment.getStateData().set("transaction_units", payment.getStateData().get("transaction_units"));
  payment.getStateData().remove("transaction_units");
  boolean res = payment.paymentCheck(config.getUIssuerKeys());
  payment.traceErrors();
  assertFalse(res);
}

private List<Contract> createListOfCoinsWithAmount(List<String> values) throws Exception {
  Contract money = createCoin();
  money.getStateData().set(FIELD_NAME, new Decimal(100500));
  money.addSignerKeyFromFile(PRIVATE_KEY_PATH);
  money.seal();
  sealCheckTrace(money, true);
  List<Contract> res = new ArrayList<>();
  for (String value : values) {
    Contract contract = ContractsService.createSplit(money, new BigDecimal(value), FIELD_NAME, new HashSet<PrivateKey>());
    contract.addSignerKeyFromFile(PRIVATE_KEY_PATH);
    res.add(contract.getNew().get(0));
  }
  return res;
}

  protected Contract createCoinWithAmount(String amount, String fieldName) throws Exception {
    Contract contract = createCoin();
    contract.getStateData().set(fieldName, new Decimal(amount));
    contract.addSignerKeyFromFile(PRIVATE_KEY_PATH);

    sealCheckTrace(contract, true);

    return contract;
  }
}

@Test
public void cheatCreateValue2() throws Exception {
  Contract c = createCoin();
  c.addSignerKeyFromFile(PRIVATE_KEY_PATH);
  Binder d = c.getStateData();
  int a = 1000000;
  assertEquals(a, d.getIntOrThrow(FIELD_NAME));
  c.seal();
  assertTrue(c.check());
  Contract c1 = c.createRevision(ownerKey2);
  c1.getStateData().set(FIELD_NAME, "500.00000001");
  sealCheckTrace(c1, false);
}

@Test(timeout = 90000)
public void checkPayment_wrongUtype() throws Exception {
  Contract payment = checkPayment_preparePaymentContract(checkPayment_preparePrivateKeys());
  payment.getStateData().set("transaction_units", "33");
  boolean res = payment.paymentCheck(config.getUIssuerKeys());
  payment.traceErrors();
  assertFalse(res);
}

@Test(timeout = 90000)
public void checkPayment_minusU() throws Exception {
  Contract payment = checkPayment_preparePaymentContract(checkPayment_preparePrivateKeys());
  payment.getStateData().set("transaction_units", -1);
  boolean res = payment.paymentCheck(config.getUIssuerKeys());
  payment.traceErrors();
  assertFalse(res);
}

@Test
public void defaultParameters() throws Exception {
  Contract contract = new Contract(TestKeys.privateKey(0));
  contract.getStateData().put("field1", "33.000000000000000001");
  ChangeNumberPermission changeNumberPermission = new ChangeNumberPermission(contract.getRole("owner"), Binder.of("field_name", "field1"));
  contract.addPermission(changeNumberPermission);
  contract.seal();
  Contract changed = contract.createRevision();
  changed.addSignerKey(TestKeys.privateKey(0));
  changed.getStateData().set("field1", "33.000000000000000002");
  changed.seal();
  changed.check();
  assertTrue(changed.isOk());
}

@Test
public void modifyDataDeclined() throws Exception {
  Contract contract = new Contract(TestKeys.privateKey(0));
  contract.getStateData().put("field_to_be_changed", "value1");
  ModifyDataPermission modifyDataPermission = new ModifyDataPermission(contract.getRole("owner"), new Binder());
  contract.addPermission(modifyDataPermission);
  contract.seal();
  Contract changed = contract.createRevision();
  changed.addSignerKey(TestKeys.privateKey(0));
  changed.getStateData().set("field_to_be_changed", "value2");
  changed.seal();
  changed.check();
  assertTrue(!changed.isOk());
}

Javadoc

Get data section of contract state

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 getStateDatamethodin com.icodici.universa.contract.Contract

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