How to use

getParent

method

in

com.icodici.universa.contract.Contract

public String getParent() {
  return this.currentContract.getParent() == null ? null : this.currentContract.getParent().toBase64String();
}

protected Context getContext() {
  if (context == null) {
    context = new Context(getRevokingItem(getParent()));
    context.siblings.add(this);
    newItems.forEach(i -> {
      if (i.getParent() != null && i.getParent().equals(getParent()))
        context.siblings.add(i);
    });
  }
  return context;
}

/**
 * Gets complex "id" of current revision
 * @return revision "id" in format ORIGIN/PARENT/REVISION/BRANCH
 */
public String getRevisionId() {
  String parentId = getParent() == null ? "" : (getParent().toBase64String() + "/");
  StringBuilder sb = new StringBuilder(getOrigin().toBase64String() + "/" + parentId + state.revision);
  if (state.branchId != null)
    sb.append("/" + state.branchId.toString());
  return sb.toString();
}

private boolean searchNewItemWithParent(Approvable item, HashId id) {
  if(item instanceof Contract && ((Contract) item).getParent() != null && ((Contract) item).getParent().equals(id)) {
    return true;
  }
  for(Approvable newItem : item.getNewItems()) {
    if(searchNewItemWithParent(newItem,id)) {
      return true;
    }
  }
  return false;
}

public JSApiRevisionStorage getRevisionStorage() {
  if (scriptParameters.checkPermission(JSApiScriptParameters.ScriptPermissions.PERM_REVISION_STORAGE))
    return new JSApiRevisionStorage(this.currentContract.getId(), this.currentContract.getParent());
  throw new IllegalArgumentException("access denied: missing permission " + JSApiScriptParameters.ScriptPermissions.PERM_REVISION_STORAGE.toString());
}

private void checkRevokePermissions(Set<Contract> revokes) throws Quantiser.QuantiserException {
  for (Contract rc : revokes) {
    //check if revoking parent => no permission is needed
    if(getParent() != null && rc.getId().equals(getParent()))
      continue;
    if (!rc.isPermitted("revoke", getEffectiveKeys()))
      addError(FORBIDDEN, "revokingItem", "revocation not permitted for item " + rc.getId());
  }
}

@SuppressWarnings("deprecation") //outdated method. will be replaced with new one soon
private void checkForNetConfig(Contract contract) {
  if (contract.getIssuer().getKeys().stream().anyMatch(key -> config.getNetworkReconfigKeyAddress().isMatchingKey(key))) {
    if(contract.getParent() == null)
      return;
    if(contract.getRevoking().size() == 0 || !contract.getRevoking().get(0).getId().equals(contract.getParent()))
      return;
    Contract parent = contract.getRevoking().get(0);
    if(!checkContractCorrespondsToConfig(parent,network.allNodes())) {
      return;
    }
    if(!checkIfContractContainsNetConfig(contract)) {
      return;
    }
    List<NodeInfo> networkNodes = network.allNodes();
    List contractNodes = (List)DefaultBiMapper.getInstance().deserializeObject(contract.getStateData().get("net_config"));
    contractNodes.stream().forEach(nodeInfo -> {
      if(!networkNodes.contains(nodeInfo)) {
        addNode((NodeInfo) nodeInfo);
      }
      networkNodes.remove(nodeInfo);
    });
    networkNodes.stream().forEach( nodeInfo -> removeNode(nodeInfo));
  }
}

private void checkChangedContract() throws Quantiser.QuantiserException {
  // get context if not got yet
  getContext();
  Contract parent;
  // if exist siblings for contract (more then itself)
  if(getSiblings().size() > 1) {
    parent = getContext().base;
  } else {
    parent = getRevokingItem(getParent());
  }
  if (parent == null) {
    addError(BAD_REF, "parent", "parent contract must be included");
  } else {
    // checking parent:
    // proper origin
    HashId rootId = parent.getRootId();
    if (!rootId.equals(getRawOrigin())) {
      addError(BAD_VALUE, "state.origin", "wrong origin, should be root");
    }
    if (!getParent().equals(parent.getId()))
      addError(BAD_VALUE, "state.parent", "illegal parent references");
    ContractDelta delta = new ContractDelta(parent, this);
    delta.check();
    checkRevokePermissions(delta.getRevokingItems());
  }
}

Contract newLamborghini = null;
for (Contract c : swapContract.getNew()) {
  if(c.getParent().equals(delorean.getId())) {
    newDelorean = c;
  if(c.getParent().equals(lamborghini.getId())) {
    newLamborghini = c;

Contract newLamborghini = null;
for (Contract c : swapContract.getNew()) {
  if(c.getParent().equals(delorean.getId())) {
    newDelorean = c;
  if(c.getParent().equals(lamborghini.getId())) {
    newLamborghini = c;

if(c.getParent().equals(delorean.getId())) {
  newDelorean = c;

if(c.getParent().equals(delorean.getId())) {
  newDelorean = c;

if(c.getParent().equals(lamborghini.getId())) {
  newLamborghini = c;

  @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();
  }

Contract newLamborghini = null;
for (Contract c : swapContract.getNew()) {
  if(c.getParent().equals(delorean.getId())) {
    newDelorean = c;
  if(c.getParent().equals(lamborghini.getId())) {
    newLamborghini = c;

Contract newLamborghini = null;
for (Contract c : swapContract.getNew()) {
  if(c.getParent().equals(delorean.getId())) {
    newDelorean = c;
  if(c.getParent().equals(lamborghini.getId())) {
    newLamborghini = c;

Contract newDelorean = null;
for (Contract c : swapContract.getNew()) {
  if(c.getParent().equals(delorean.getId())) {
    newDelorean = c;

if(c.getParent().equals(lamborghini.getId())) {
  newLamborghini = c;

Contract parent = null;
for (Contract nrc : nc.getRevoking()) {
  if (nrc.getId().equals(nc.getParent())) {
    parent = nrc;
    break;

if(c.getId().equals(payment.getContract().getParent())) {
  parent = c;
  break;