com.icodici.universa.contract.Contract.getState 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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}

public void setOrigin(HashId origin) {
  this.c.getState().origin = origin;
}

private void checkCreateParcelFotTestNet(String contract_file_payload, String contract_file_payment) throws Exception
{
  final String ROOT_PATH = "./src/test_contracts/contractService/";
  PrivateKey privateKey = TestKeys.privateKey(3);
  Set<PrivateKey> privateKeys = new HashSet<>();
  privateKeys.add(privateKey);
  Set<PublicKey> publicKeys = new HashSet<>();
  publicKeys.add(privateKey.getPublicKey());
  Contract payload = Contract.fromDslFile(ROOT_PATH + contract_file_payload);
  payload.addSignerKey(privateKey);
  payload.seal();
  Contract payment = InnerContractsService.createFreshU(100, publicKeys, true);
  Parcel parcel = ContractsService.createParcel(payload, payment, 20, privateKeys, true);
  assertEquals(parcel.getPayloadContract().getState().getBranchId(), payload.getState().getBranchId());
  assertEquals(parcel.getPaymentContract().getState().getBranchId(), payment.getState().getBranchId());
  assertEquals(parcel.getPayloadContract().getStateData(), payload.getStateData());
  assertEquals(parcel.getPaymentContract().getDefinition().getData(), payment.getDefinition().getData());
  assertEquals(100, parcel.getPaymentContract().getStateData().getIntOrThrow("transaction_units"));
  assertEquals(10000 - 20, parcel.getPaymentContract().getStateData().getIntOrThrow("test_transaction_units"));
  System.out.println("OK");
}

public void setParent(HashId parent) {
  this.c.getState().parent = parent;
}

private void checkCreateParcel(String contract_file_payload, String contract_file_payment) throws Exception
{
  final String ROOT_PATH = "./src/test_contracts/contractService/";
  PrivateKey privateKey = TestKeys.privateKey(3);
  Contract payload = Contract.fromDslFile(ROOT_PATH + contract_file_payload);
  payload.addSignerKey(privateKey);
  payload.seal();
  Contract payment = Contract.fromDslFile(ROOT_PATH + contract_file_payment);
  payment.addSignerKey(privateKey);
  payment.seal();
  Set<PrivateKey> PrivateKeys = new HashSet<>();
  PrivateKeys.add(privateKey);
  Parcel parcel = ContractsService.createParcel(payload, payment, 20, PrivateKeys);
  assertEquals(parcel.getPayloadContract().getState().getBranchId(), payload.getState().getBranchId());
  assertEquals(parcel.getPaymentContract().getState().getBranchId(), payment.getState().getBranchId());
  assertEquals(parcel.getPayloadContract().getStateData(), payload.getStateData());
  assertEquals(parcel.getPaymentContract().getDefinition().getData(), payment.getDefinition().getData());
  System.out.println("OK");
}

public int getRevision() {
  return this.currentContract.getState().getRevision();
}

public List<String> extractJSNames() {
  List<String> res = new ArrayList<>();
  Binder scriptBinder = getDefinition().getData().getBinder(JSAPI_SCRIPT_FIELD, null);
  if (scriptBinder == null)
    scriptBinder = getState().getData().getBinder(JSAPI_SCRIPT_FIELD, null);
  if (scriptBinder != null)
    res.addAll(JSApiHelpers.getFileNamesFromScriptBinder(scriptBinder));
  return res;
}

@Test(timeout = 90000)
public void checkPayment_originItself() throws Exception {
  Contract payment = checkPayment_preparePaymentContract(checkPayment_preparePrivateKeys());
  final Field field = payment.getState().getClass().getDeclaredField("origin");
  field.setAccessible(true);
  field.set(payment.getState(), payment.getId());
  final Field field2 = payment.getRevoking().get(0).getState().getClass().getDeclaredField("origin");
  field2.setAccessible(true);
  field2.set(payment.getRevoking().get(0).getState(), payment.getId());
  boolean res = payment.paymentCheck(config.getUIssuerKeys());
  payment.traceErrors();
  assertFalse(res);
}

@Test(timeout = 20000)
public void checkPayment_revision1() throws Exception {
  Contract payment = checkPayment_preparePaymentContract(checkPayment_preparePrivateKeys());
  final Field field = payment.getState().getClass().getDeclaredField("revision");
  field.setAccessible(true);
  field.set(payment.getState(), 1);
  boolean res = payment.paymentCheck(config.getUIssuerKeys());
  payment.traceErrors();
  assertFalse(res);
}

@Test(timeout = 90000)
public void checkPayment_originMismatch() throws Exception {
  Contract payment = checkPayment_preparePaymentContract(checkPayment_preparePrivateKeys());
  final Field field2 = payment.getRevoking().get(0).getState().getClass().getDeclaredField("origin");
  field2.setAccessible(true);
  field2.set(payment.getRevoking().get(0).getState(), payment.getId());
  boolean res = payment.paymentCheck(config.getUIssuerKeys());
  payment.traceErrors();
  assertFalse(res);
}

@Test
public void testSharedFolders_write() throws Exception {
  String f1content = "f1 content";
  String f2content = "f2 content";
  String f3content = "f3 content";
  String f4content = "f4 content";
  List<String> sharedFolders = prepareSharedFoldersForTest(f1content, f2content, f3content);
  Paths.get(sharedFolders.get(0) + "/folder2/f4.txt").toFile().delete();
  Paths.get(sharedFolders.get(0) + "/folder2/f4.txt").toFile().getParentFile().delete();
  Contract contract = new Contract(TestKeys.privateKey(0));
  String js = "";
  js += "print('testSharedFolders_write');";
  js += "var file4Content = '"+f4content+"';";
  js += "jsApi.getSharedFolders().writeNewFile('folder2/f4.txt', jsApi.string2bin(file4Content));";
  JSApiExecOptions execOptions = new JSApiExecOptions();
  execOptions.sharedFolders.addAll(sharedFolders);
  contract.getState().setJS(js.getBytes(), "client script.js", new JSApiScriptParameters());
  contract.seal();
  contract.execJS(execOptions, js.getBytes());
  String f4readed = new String(Files.readAllBytes(Paths.get(sharedFolders.get(0) + "/folder2/f4.txt")));
  System.out.println("f4: " + f4readed);
  assertEquals(f4content, f4readed);
}

public void updateThisEnvironmentByName(Contract newContract, JSApiExecOptions execOptions) throws Exception {
  JSApiEnvironment env = execJSByName(
      newContract.getDefinition().getData().getBinder(Contract.JSAPI_SCRIPT_FIELD, null),
      newContract.getState().getData().getBinder(Contract.JSAPI_SCRIPT_FIELD, null),
      execOptions,
      jsFileName,
      newContract,
      stringParams
  );
  this.jsApi = env.jsApi;
  this.scriptEngine = env.scriptEngine;
  this.currentContract = env.currentContract;
  this.result = env.result;
}

/**
 * Executes attached javascript if only one js is attached. Also, it should be attached with putContentIntoContract == true.
 */
public Object execJSByName(JSApiExecOptions execOptions, String jsFileName, String... params) throws Exception {
  JSApiEnvironment env = JSApiEnvironment.execJSByName(
      getDefinition().getData().getBinder(JSAPI_SCRIPT_FIELD, null),
      getState().getData().getBinder(JSAPI_SCRIPT_FIELD, null),
      execOptions,
      jsFileName,
      this,
      params
  );
  return env.callEvent("main", true);
}

/**
 * Executes javascript, like {@link Contract#execJS(JSApiExecOptions, byte[], String...)},
 * but searches script body in contract. It should be saved previously with {@link Definition#setJS(byte[], String, JSApiScriptParameters, boolean)}
 * or {@link State#setJS(byte[], String, JSApiScriptParameters, boolean)} with putContentIntoContract == true.
 * @param scriptHash is {@link HashId} from js-file content.
 */
public Object execJSByScriptHash(JSApiExecOptions execOptions, HashId scriptHash, String... params) throws Exception {
  JSApiEnvironment env = JSApiEnvironment.execJSByScriptHash(
      getDefinition().getData().getBinder(JSAPI_SCRIPT_FIELD, null),
      getState().getData().getBinder(JSAPI_SCRIPT_FIELD, null),
      execOptions,
      scriptHash,
      this,
      params
  );
  return env.callEvent("main", true);
}

@Test
public void shouldNotSplitWithAnotherRevision() throws Exception {
  Contract c = createCoin();
  c.addSignerKeyFromFile(PRIVATE_KEY_PATH);
  c.getState().setBranchNumber(1);
  try {
    Contract c2 = c.split(1)[0];
    fail("Expected exception to be thrown.");
  } catch (IllegalArgumentException e) {
    assertTrue(e.getMessage().equalsIgnoreCase("this revision is already split"));
  }
}

@Test
public void testSharedFolders_restrictedPath() throws Exception {
  String f1content = "f1 content";
  String f2content = "f2 content";
  String f3content = "f3 content";
  List<String> sharedFolders = prepareSharedFoldersForTest(f1content, f2content, f3content);
  Contract contract = new Contract(TestKeys.privateKey(0));
  String js = "";
  js += "print('testSharedFolders_restrictedPath');";
  js += "function bin2string(array){var result = '';for(var i = 0; i < array.length; ++i){result+=(String.fromCharCode(array[i]));}return result;}";
  js += "try {";
  js += "  var file3Content = jsApi.getSharedFolders().readAllBytes('../f3.txt');";
  js += "  print('file3Content: ' + bin2string(file3Content));";
  js += "} catch (err) {";
  js += "  result = err;";
  js += "}";
  JSApiExecOptions execOptions = new JSApiExecOptions();
  execOptions.sharedFolders.addAll(sharedFolders);
  contract.getState().setJS(js.getBytes(), "client script.js", new JSApiScriptParameters());
  contract.seal();
  IOException res = (IOException) contract.execJS(execOptions, js.getBytes());
  System.out.println("IOException from js: " + res);
  assertTrue(res.toString().contains("file '../f3.txt' not found in shared folders"));
}

/**
 * Executes javascript, that previously should be saved in contract's definition
 * with {@link Definition#setJS(byte[], String, JSApiScriptParameters)} or {@link State#setJS(byte[], String, JSApiScriptParameters)}.
 * Provides instance of {@link JSApi} to this script, as 'jsApi' global var.
 * @param params list of strings, will be passed to javascript
 * @return Object, got it from 'result' global var of javascript.
 * @throws ScriptException if javascript throws some errors
 * @throws IllegalArgumentException if javascript is not defined in contract's definition
 */
public Object execJS(JSApiExecOptions execOptions, byte[] jsFileContent, String... params) throws Exception {
  JSApiEnvironment env = JSApiEnvironment.execJS(
      getDefinition().getData().getBinder(JSAPI_SCRIPT_FIELD, null),
      getState().getData().getBinder(JSAPI_SCRIPT_FIELD, null),
      execOptions,
      jsFileContent,
      this,
      params
  );
  env.callEvent("main", true);
  return env.getResult();
}

@Test
public void shouldSplitAndMergeOne() throws Exception {
  List<Contract> listOfCoinsWithAmount = createListOfCoinsWithAmount(Arrays.asList(100, 200));
  List<Wallet> wallets = Wallet.determineWallets(listOfCoinsWithAmount);
  //want to send 250
  Wallet wallet = wallets.get(0);
  Contract output = wallet.buildContractWithValue("amount", new Decimal(250));
  output.addSignerKeyFromFile(PRIVATE_KEY_PATH);
  sealCheckTrace(output, true);
  Contract contract = wallet.getContracts().get(0);
  sealCheckTrace(contract, true);
  assertEquals("50", contract.getState().getData().get("amount"));
}

@Test
public void testTransactionalAccess() throws Exception {
  String t1value = "t1value";
  String t2value = "t2value";
  Contract contract = new Contract(TestKeys.privateKey(0));
  contract.getTransactionalData().set("t1", t1value);
  String js = "";
  js += "print('testTransactionalAccess');";
  js += "var t1 = jsApi.getCurrentContract().getTransactionalDataField('t1');";
  js += "print('t1: ' + t1);";
  js += "jsApi.getCurrentContract().setTransactionalDataField('t2', '"+t2value+"');";
  js += "result = t1;";
  contract.getState().setJS(js.getBytes(), "client script.js", new JSApiScriptParameters());
  contract.seal();
  String res = (String)contract.execJS(js.getBytes());
  assertEquals(t1value, res);
  assertEquals(t2value, contract.getTransactionalData().getStringOrThrow("t2"));
  System.out.println("t2: " + contract.getTransactionalData().getStringOrThrow("t2"));
}

public void parcelAssertions(Parcel equal1, Parcel equal2 ) throws Exception {
  //few assertions
  assertEquals(equal1.getPayload().getContract().getId(), equal2.getPayload().getContract().getId());
  assertEquals(equal1.getPayment().getContract().getId(), equal2.getPayment().getContract().getId());
  assertEquals(equal1.getPayload().getContract().getState().getBranchId(), equal2.getPayload().getContract().getState().getBranchId());
  assertEquals(equal1.getPayment().getContract().getState().getBranchId(), equal2.getPayment().getContract().getState().getBranchId());
  assertEquals(equal1.getPayload().getContract().getState().getCreatedAt().getSecond(), equal2.getPayload().getContract().getState().getCreatedAt().getSecond());
  assertEquals(equal1.getPayment().getContract().getState().getCreatedAt().getSecond(), equal2.getPayment().getContract().getState().getCreatedAt().getSecond());
  assertEquals(equal1.getPayload().getContract().getExpiresAt().getDayOfYear(), equal2.getPayload().getContract().getExpiresAt().getDayOfYear());
  assertEquals(equal1.getPayment().getContract().getExpiresAt().getDayOfYear(), equal2.getPayment().getContract().getExpiresAt().getDayOfYear());
  assertEquals(equal1.getPayload().getSubItems().size(), equal2.getPayload().getSubItems().size());
  assertEquals(equal1.getPayment().getSubItems(), equal2.getPayment().getSubItems());
}

@Test
public void references() throws Exception {
  Contract contract = new Contract(TestKeys.privateKey(0));
  String js = "";
  js += "print('references');";
  js += "var ref = jsApi.getReferenceBuilder().createReference('EXISTING_STATE');";
  js += "ref.setConditions({'all_of':['ref.issuer=="+TestKeys.publicKey(1).getShortAddress().toString()+"']});";
  js += "jsApi.getCurrentContract().addReference(ref);";
  contract.getState().setJS(js.getBytes(), "client script.js", new JSApiScriptParameters());
  contract.seal();
  contract = Contract.fromPackedTransaction(contract.getPackedTransaction());
  Contract batchContract = new Contract(TestKeys.privateKey(3));
  batchContract.addNewItems(contract);
  batchContract.seal();
  assertTrue(batchContract.check());
  contract.execJS(new JSApiExecOptions(), js.getBytes());
  contract.seal();
  batchContract.seal();
  assertFalse(batchContract.check());
}

Javadoc

Get state of a 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 getStatemethodin com.icodici.universa.contract.Contract

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getState
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com.icodici.universa.contract.Contract