DecimalToBigDecimal extends TypeConverterBase { @Override public byte[] from(Object value, int length, int decimals, boolean addPadding) { if(value == null && this.defaultValue == null) { return null; } BigDecimal i = value != null ? ((BigDecimal)value) : new BigDecimal(this.defaultValue); if(i.signum() == -1) { throw new TypeConverterException("Number can not be negative"); } byte[] strBytes = i.movePointRight(decimals).toBigInteger().abs().toString().getBytes(this.charset); if(strBytes.length > length) { throw new TypeConverterException("Field to small for value: " + length + " < " + strBytes.length); } if(addPadding) { strBytes = padBytes(strBytes, length); } return strBytes; }  @Override void validate(Class<?> type, int size, int decimals); @Override Object to(byte[] bytes, int offset, int length, int decimals, boolean removePadding); @Override byte[] from(Object value, int length, int decimals, boolean addPadding);  }
@Test public void testFrom() throws Exception { assertArrayEquals("1001".getBytes(StandardCharsets.UTF_8), typeConverter.from(new BigDecimal("10.01"), 4, 2, true)); }
@Test public void testFromNullValue() throws Exception { config.setDefaultValue("0"); typeConverter.initialize(config); assertArrayEquals("0000".getBytes(StandardCharsets.UTF_8), typeConverter.from(null, 4, 2, true)); }
@Test public void testFromOverflow() throws Exception { expectedEx.expect(TypeConverterException.class); expectedEx.expectMessage("Field to small for value"); byte[] bytes = typeConverter.from(new BigDecimal("12147483648.00"), 4, 2, true); }