How to use

getRevision

method

in

com.icodici.universa.contract.Contract

public void checkAllContracts() {
  //final AtomicBoolean needToReload = new AtomicBoolean(false);
  endpoints.forEach((endpoint, env) -> {
    HashId slotId = env.getSlotId();
    HashId originId = env.getCurrentContract().getOrigin();
    byte[] contractBinFromSlot1 = slot1Requestor.queryContract(slotId, originId);
    if (contractBinFromSlot1 != null) {
      try {
        Contract contractFromSlot1 = Contract.fromPackedTransaction(contractBinFromSlot1);
        if (contractFromSlot1.getRevision() > env.getCurrentContract().getRevision()) {
          System.err.println("JSApiHttpServer warning: contract origin="+originId+" changed in slot1, endpoint: " + endpoint);
          env.updateThisEnvironmentByName(contractFromSlot1, execOptions);
        }
      } catch (IOException e) {
        System.err.println("JSApiHttpServer error: unable to unpack latest contract origin=" + originId + " from slot1, update it, endpoint: " + endpoint + ", err: " + e);
      } catch (Exception e) {
        System.err.println("JSApiHttpServer error while update JSApiEnvironment: " + e);
        e.printStackTrace();
      }
    }
    HashId id = env.getCurrentContract().getId();
    if (!contractChecker.isApproved(id)) {
      System.err.println("JSApiHttpServer warning: contract id="+id+" is not approved, disabled " + endpoint);
      endpoints.remove(endpoint);
    }
  });
}

  return (T) getRole("creator");
case "revision":
  return (T) ((Integer) getRevision());
case "parent":
  return (T) getParent();

contract.getState().setParent(parent.getId());
contract.getState().setOrigin(parent.getOrigin());
contract.getState().setRevision(parent.getRevision()+1);
contract.getDefinition().setExpiresAt(parent.getDefinition().getExpiresAt());
contract.getDefinition().setCreatedAt(parent.getDefinition().getCreatedAt());

for (byte[] bin : storedRevisions) {
  Contract c = Contract.fromPackedTransaction(bin);
  if (latestRevision < c.getRevision()) {
    latestRevision = c.getRevision();
    latestContract = bin;

    StandardCopyOption.ATOMIC_MOVE
};
String uDest = new FilenameTool(uSource).addSuffixToBase("_rev" + u.getRevision()).toString();
uDest = FileTool.writeFileContentsWithRenaming(uDest, new byte[0]);
if (uDest != null) {

};
String utnDest = new FilenameTool(utnPath).addSuffixToBase("_rev" + utnContract.getRevision()).toString();
utnDest = FileTool.writeFileContentsWithRenaming(utnDest, new byte[0]);
if (utnDest != null) {

    StandardCopyOption.ATOMIC_MOVE
};
String uDest = new FilenameTool(uSource).addSuffixToBase("_rev" + u.getRevision()).toString();
uDest = FileTool.writeFileContentsWithRenaming(uDest, new byte[0]);
if (uDest != null) {

    StandardCopyOption.ATOMIC_MOVE
};
String uDest = new FilenameTool(uSource).addSuffixToBase("_rev" + u.getRevision()).toString();
uDest = FileTool.writeFileContentsWithRenaming(uDest, new byte[0]);
if (uDest != null) {

System.out.println("DeLorean revoked ownership contract revision " + delorean.getRevision() + " is " + deloreanResult + " by Network");
System.out.println("DeLorean revoked ownership was belongs to Marty: " + delorean.getOwner().isAllowedForKeys(martyPublicKeys));
assertEquals(ItemState.REVOKED, deloreanResult.state);
System.out.println("Lamborghini revoked ownership contract revision " + lamborghini.getRevision() + " is " + lamborghiniResult + " by Network");
System.out.println("Lamborghini revoked ownership was belongs to Stepa: " + lamborghini.getOwner().isAllowedForKeys(stepaPublicKeys));
assertEquals(ItemState.REVOKED, lamborghiniResult.state);
System.out.println("DeLorean ownership contract revision " + newDelorean.getRevision() + " is " + deloreanResult + " by Network");
System.out.println("DeLorean ownership is now belongs to Stepa: " + newDelorean.getOwner().isAllowedForKeys(stepaPublicKeys));
assertEquals(ItemState.APPROVED, deloreanResult.state);
System.out.println("Lamborghini ownership contract revision " + newLamborghini.getRevision() + " is " + lamborghiniResult + " by Network");
System.out.println("Lamborghini ownership is now belongs to Marty: " + newLamborghini.getOwner().isAllowedForKeys(martyPublicKeys));
assertEquals(ItemState.APPROVED, lamborghiniResult.state);

System.out.println("DeLorean revoked ownership contract revision " + delorean.getRevision() + " is " + deloreanResult + " by Network");
System.out.println("DeLorean revoked ownership still belongs to Marty: " + delorean.getOwner().isAllowedForKeys(martyPublicKeys));
assertEquals(ItemState.APPROVED, deloreanResult.state);
System.out.println("Lamborghini revoked ownership contract revision " + lamborghini.getRevision() + " is " + lamborghiniResult + " by Network");
System.out.println("Lamborghini revoked ownership still belongs to Stepa: " + lamborghini.getOwner().isAllowedForKeys(stepaPublicKeys));
assertEquals(ItemState.APPROVED, lamborghiniResult.state);
System.out.println("DeLorean ownership contract revision " + newDelorean.getRevision() + " is " + deloreanResult + " by Network");
System.out.println("DeLorean ownership should belongs to Stepa: " + newDelorean.getOwner().isAllowedForKeys(stepaPublicKeys));
assertEquals(ItemState.UNDEFINED, deloreanResult.state);
System.out.println("Lamborghini ownership contract revision " + newLamborghini.getRevision() + " is " + lamborghiniResult + " by Network");
System.out.println("Lamborghini ownership should belongs to Marty: " + newLamborghini.getOwner().isAllowedForKeys(martyPublicKeys));
assertEquals(ItemState.UNDEFINED, lamborghiniResult.state);

ime.setNameCache(nameCache);
if (((Contract) newItem).getRevision() == 1) {
  if (!((NSmartContract) newItem).beforeCreate(ime))
    newItem.addError(Errors.BAD_NEW_ITEM, item.getId().toString(), "newItem.beforeCreate fails");

report("contract id: " + contract.getId().toBase64String());
report("issued:      " + contract.getIssuedAt());
report("revision:    " + contract.getRevision());
report("created:     " + contract.getCreatedAt());
report("expires:     " + contract.getExpiresAt());

if ((getRevision() != 1) || (getParent()!=null)) {
  if (getOrigin().equals(getId())) {
    res = false;
    addError(Errors.BAD_VALUE, "can't origin itself");
  if (getRevision() <= 1) {
    res = false;
    addError(Errors.BAD_VALUE, "revision must be greater than 1");

  @Test
  public void newRevision() throws Exception {
    Contract c = Contract.fromDslFile(ROOT_CONTRACT);
    c.addSignerKeyFromFile(PRIVATE_KEY_PATH);
    byte[] sealed = c.seal();
    assertTrue(c.check());

    Contract c2 = c.createRevision(TestKeys.privateKey(0), TestKeys.privateKey(3));
    assertEquals(1, c2.getRevokingItems().size());
    assertEquals(c, c2.getRevokingItems().iterator().next());
    assertEquals(2, c2.getKeysToSignWith().size());
    assertEquals(2, c2.getRevision());
    assertEquals(c.getId(), c2.getParent());
    assertEquals(c.getId(), c2.getRawOrigin());

    c2.seal();

    Contract c3 = c2.createRevision(TestKeys.privateKey(0), TestKeys.privateKey(3));
    assertEquals(1, c3.getRevokingItems().size());
    assertEquals(c2, c3.getRevokingItems().iterator().next());
    assertEquals(2, c3.getKeysToSignWith().size());
    assertEquals(3, c3.getRevision());
    assertEquals(c2.getId(), c3.getParent());
    assertEquals(c.getId(), c3.getRawOrigin());


//        c2.check();
//        c2.traceErrors();
  }

System.out.println("DeLorean revoked ownership contract revision " + delorean.getRevision() + " is " + deloreanResult + " by Network");
System.out.println("DeLorean revoked ownership was belongs to Marty: " + delorean.getOwner().isAllowedForKeys(martyPublicKeys));
assertEquals(ItemState.REVOKED, deloreanResult.state);
System.out.println("Lamborghini revoked ownership contract revision " + lamborghini.getRevision() + " is " + lamborghiniResult + " by Network");
System.out.println("Lamborghini revoked ownership was belongs to Stepa: " + lamborghini.getOwner().isAllowedForKeys(stepaPublicKeys));
assertEquals(ItemState.REVOKED, lamborghiniResult.state);
System.out.println("DeLorean ownership contract revision " + newDelorean.getRevision() + " is " + deloreanResult + " by Network");
System.out.println("DeLorean ownership is now belongs to Stepa: " + newDelorean.getOwner().isAllowedForKeys(stepaPublicKeys));
assertEquals(ItemState.APPROVED, deloreanResult.state);
System.out.println("Lamborghini ownership contract revision " + newLamborghini.getRevision() + " is " + lamborghiniResult + " by Network");
System.out.println("Lamborghini ownership is now belongs to Marty: " + newLamborghini.getOwner().isAllowedForKeys(martyPublicKeys));
assertEquals(ItemState.APPROVED, lamborghiniResult.state);