public static BigDecimal toBigDecimal(JSONValue value) {
JSONNumber number = value.isNumber();
if (number == null) {
throw new DecodingException("Expected a json number, but was given: " + value);
}
return new BigDecimal(value.toString());
}
@Override
public BigInteger decode(JSONValue value) throws DecodingException {
if (value == null || value.isNull() != null) {
return null;
}
JSONNumber number = value.isNumber();
if (number == null) {
JSONString str = value.isString();
if (str == null) {
throw new DecodingException(
"Expected a json number r string, but was given: " + value);
}
// Doing a straight conversion from string to BigInteger will
// not work for large values
// So we convert to BigDecimal first and then convert it to
// BigInteger.
return new BigDecimal(str.stringValue()).toBigInteger();
}
// Doing a straight conversion from string to BigInteger will not
// work for large values
// So we convert to BigDecimal first and then convert it to
// BigInteger.
return new BigDecimal(value.toString()).toBigInteger();
}
public static Integer jsonValueToInteger(JSONValue jsonValue) {
if (jsonValue != null) {
JSONNumber jsonNumber = jsonValue.isNumber();
if (jsonNumber != null) {
return (int) jsonNumber.doubleValue();
}
}
return null;
}
public static Long jsonValueToLong(JSONValue jsonValue) {
if (jsonValue != null) {
JSONNumber jsonNumber = jsonValue.isNumber();
if (jsonNumber != null) {
return (long) jsonNumber.doubleValue();
}
}
return null;
}
public static Double jsonValueToDouble(JSONValue jsonValue) {
if (jsonValue != null) {
JSONNumber jsonNumber = jsonValue.isNumber();
if (jsonNumber != null) {
return jsonNumber.doubleValue();
}
}
return null;
}
public static Float jsonValueToFloat(JSONValue jsonValue) {
if (jsonValue != null) {
JSONNumber jsonNumber = jsonValue.isNumber();
if (jsonNumber != null) {
return (float) jsonNumber.doubleValue();
}
}
return null;
}
@Override
public String decode(JSONValue value) throws DecodingException {
if (value == null || value.isNull() != null) {
return null;
}
JSONString str = value.isString();
if (str == null) {
if (value.isBoolean() != null || value.isNumber() != null) {
return value.toString();
}
throw new DecodingException("Expected a json string, but was given: " + value);
}
return str.stringValue();
}
public static double toDouble(JSONValue value) {
JSONNumber number = value.isNumber();
if (number == null) {
JSONString val = value.isString();
if (val != null) {
try {
return Double.parseDouble(val.stringValue());
} catch (NumberFormatException e) {
// just through exception below
}
}
throw new DecodingException("Expected a json number, but was given: " + value);
}
return number.doubleValue();
}
@Override
public Date decode(JSONValue value) throws DecodingException {
if (value == null || value.isNull() != null) {
return null;
}
String format = Defaults.getDateFormat();
if (format == null) {
JSONNumber num = value.isNumber();
if (num == null) {
throw new DecodingException("Expected a json number, but was given: " + value);
}
return new Date((long) num.doubleValue());
}
JSONString str = value.isString();
if (str == null) {
throw new DecodingException("Expected a json string, but was given: " + value);
}
return DateTimeFormat.getFormat(format).parse(str.stringValue());
}
@Override
protected Long deserializeJson(JSONValue o) {
return (long) o.isNumber().doubleValue();
}