public Number valueToNumber()

in hugegraph-client/src/main/java/org/apache/hugegraph/serializer/direct/struct/DataType.java [128:165]

37 lines of code
10 McCabe index (conditional complexity)


    public <V> Number valueToNumber(V value) {
        if (!(this.isNumber() && value instanceof Number)) {
            return null;
        }
        if (this.clazz.isInstance(value)) {
            return (Number) value;
        }

        Number number;
        try {
            switch (this) {
                case BYTE:
                    number = Byte.valueOf(value.toString());
                    break;
                case INT:
                    number = Integer.valueOf(value.toString());
                    break;
                case LONG:
                    number = Long.valueOf(value.toString());
                    break;
                case FLOAT:
                    number = Float.valueOf(value.toString());
                    break;
                case DOUBLE:
                    number = Double.valueOf(value.toString());
                    break;
                default:
                    throw new AssertionError(String.format(
                              "Number type only contains Byte, Integer, " +
                              "Long, Float, Double, but got %s", this.clazz()));
            }
        } catch (NumberFormatException e) {
            throw new IllegalArgumentException(String.format(
                      "Can't read '%s' as %s: %s",
                      value, this.name, e.getMessage()));
        }
        return number;
    }