steemit java commitor 되기 2 새로운 프로젝트 만들기

steemit java commitor 되기 2 새로운 프로젝트 만들기

기존의 steemj 는 android용으로 개발되었기 때문에 spring boot 에서 사용할때 최적화 되기 위하여 프로젝트를 새로 만든다.

추후에 jitpack에 등록하여 library 형식으로 사용할 것이기 때문에 intelliJ에서 spring initializer 가 아니라 gradle project 의 java project로 만들어 주어서 

jar 로 떨궈주는게 좋다.

AccounName 만들기

기존의 AccountName 은 jackson으로 되어있었지만 이걸 gson으로 변환시켜주는 작업을 해준다.

AccountNameTest

public class AccountNameTest {
    private final String EXPECTED_BYTE_REPRESENTATION = "0764657a31333337";

    /**
     * Test the
     * {@link models.AccountName#toByteArray()
     * toByteArray()} method.
     * 
     * @throws Exception
     *             In case of a problem.
     */
    @Test
    public void testAccountNameToByteArray() throws Exception {
        AccountName myAccount = new AccountName("derekpark");

        assertThat("Expect that the accountName object has the given byte representation.",
                CryptoUtils.HEX.encode(myAccount.toByteArray()), equalTo(EXPECTED_BYTE_REPRESENTATION));
    }

    /**
     * Test the validation of the
     * {@link models.AccountName#setName(String name)
     * setName(String name)} method by providing an account name which is too
     * long.
     */
    @Test(expected = InvalidParameterException.class)
    public void testAccountNameValidationTooLong() {
        new AccountName("thisaccountnameistoolong");
    }

    /**
     * Test the validation of the
     * {@link models.AccountName#setName(String name)
     * setName(String name)} method by providing an account name which is too
     * short.
     */
    @Test(expected = InvalidParameterException.class)
    public void testAccountNameValidationTooShort() {
        new AccountName("sh");
    }

    /**
     * Test the validation of the
     * {@link models.AccountName#setName(String name)
     * setName(String name)} method by providing an account name with an invalid
     * start character.
     */
    @Test(expected = InvalidParameterException.class)
    public void testAccountNameValidationWrongStartChar() {
        new AccountName("-dez1337");
    }

    /**
     * Test the validation of the
     * {@link models.AccountName#setName(String name)
     * setName(String name)} method by providing an account name with an invalid
     * end character.
     */
    @Test(expected = InvalidParameterException.class)
    public void testAccountNameValidationWrongEndChar() {
        new AccountName("dez1337-");
    }

    /**
     * Test the validation of the
     * {@link models.AccountName#setName(String name)
     * setName(String name)} method by providing valid account names.
     */
    @Test
    public void testAccountNameValidation() {
        new AccountName("dez-1337");
        new AccountName("dez");
        new AccountName("dez1337-steemj");
    }
}

 steem account exception 처리에 대한 test code이다.

AccountName 

public class AccountName implements ByteTransformable {

  private String name;

  public AccountName() {
    this.setName("");
  }

  public AccountName(String name) {
    this.setName(name);
  }

  public String getName() {
    return name;
  }

  public void setName(String name) {
    if (name == null) {
      this.name = "";
    } else {
      if (!name.isEmpty()) {
        if (name.length() < 3 || name.length() > 16) {
          throw new InvalidParameterException(
              "An account name needs to have a minimum length of 3 and a maximum length of 16.");
        } else if (!name.split("\\.")[0].matches("^[a-z]{1}[a-z0-9\\-]{1,14}[a-z0-9]{1}")) {
          /*
           * It looks like only values infront of a "." are validated.
           * Those characters in front of a dot must fullfil the
           * following rules: The first char needs to be one of "a-z"
           * while a "-" and "0-9" are allowed for further chars.
           */
          throw new InvalidParameterException("The given account name '" + name
              + "' contains unsupported characters. The first character needs to be one"
              + " of 'a-z', characters in the middle can be 'a-z', '0,9' and a '-' and the last character of the "
              + "name has to be one of 'a-z' and '0-9'.");
        }
      }

      this.name = name;
    }
  }

  @Override
  public byte[] toByteArray() throws SteemInvalidTransactionException {
    return OvndSteemJUtil.transformStringToVarIntByteArray(this.getName());
  }
}