Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2014-2016 OpenEstate.org.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.math.BigDecimal;

import javax.xml.bind.DatatypeConverter;

public class Main {
    /**
     * Write a {@link BigDecimal} value into XML output,
     * that matches the 'NumberOfRoomsType' simple type.
     *
     * @param value
     * value to write
     *
     * @return
     * XML string
     *
     * @throws IllegalArgumentException
     * if a validation error occured
     */
    public static String printRoomNr(BigDecimal value) {
        return printDecimal(value, new BigDecimal("0.49"), BigDecimal.TEN.pow(4), 2, false);
    }

    /**
     * Write a {@link BigDecimal} value into XML output.
     *
     * @param value
     * value to write
     *
     * @param min
     * minimal value
     *
     * @param max
     * maximal value
     *
     * @param precision
     * number of decimal places
     *
     * @return
     * XML string
     *
     * @throws IllegalArgumentException
     * if a validation error occured
     */
    private static String printDecimal(BigDecimal value, BigDecimal min, BigDecimal max, int precision,
            boolean zeroIncluded) {
        if (value == null) {
            throw new IllegalArgumentException("The provided double value NULL is invalid!");
        }
        value = value.setScale(precision, BigDecimal.ROUND_HALF_UP);

        if (min != null && value.compareTo(min) <= 0) {
            if (!zeroIncluded || !BigDecimal.ZERO.equals(value)) {
                throw new IllegalArgumentException(
                        "The provided double value " + value + " is too small (minimum is " + min + ")!");
            }
        }
        if (max != null && value.compareTo(max) >= 0) {
            throw new IllegalArgumentException(
                    "The provided double value " + value + " is too high (maximum is " + max + ")!");
        }

        return DatatypeConverter.printDecimal(value);
    }
}