NumberUtils.java
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package com.taover.easyexcel.util;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.text.DecimalFormat;
import java.text.ParseException;
import com.taover.easyexcel.metadata.CellData;
import com.taover.easyexcel.metadata.property.ExcelContentProperty;
/**
* Number utils
*
* @author Jiaju Zhuang
*/
public class NumberUtils {
private NumberUtils() {}
/**
* format
*
* @param num
* @param contentProperty
* @return
*/
public static String format(Number num, ExcelContentProperty contentProperty) {
if (contentProperty == null || contentProperty.getNumberFormatProperty() == null
|| StringUtils.isEmpty(contentProperty.getNumberFormatProperty().getFormat())) {
if (num instanceof BigDecimal) {
return ((BigDecimal)num).toPlainString();
} else {
return num.toString();
}
}
String format = contentProperty.getNumberFormatProperty().getFormat();
RoundingMode roundingMode = contentProperty.getNumberFormatProperty().getRoundingMode();
DecimalFormat decimalFormat = new DecimalFormat(format);
decimalFormat.setRoundingMode(roundingMode);
return decimalFormat.format(num);
}
/**
* format
*
* @param num
* @param contentProperty
* @return
*/
public static CellData formatToCellData(Number num, ExcelContentProperty contentProperty) {
return new CellData(format(num, contentProperty));
}
/**
* parse
*
* @param string
* @param contentProperty
* @return
*/
public static Short parseShort(String string, ExcelContentProperty contentProperty) throws ParseException {
if (!hasFormat(contentProperty)) {
return Short.valueOf(string);
}
return parse(string, contentProperty).shortValue();
}
/**
* parse
*
* @param string
* @param contentProperty
* @return
*/
public static Long parseLong(String string, ExcelContentProperty contentProperty) throws ParseException {
if (!hasFormat(contentProperty)) {
return Long.valueOf(string);
}
return parse(string, contentProperty).longValue();
}
/**
* parse
*
* @param string
* @param contentProperty
* @return
*/
public static Integer parseInteger(String string, ExcelContentProperty contentProperty) throws ParseException {
if (!hasFormat(contentProperty)) {
return Integer.valueOf(string);
}
return parse(string, contentProperty).intValue();
}
/**
* parse
*
* @param string
* @param contentProperty
* @return
*/
public static Float parseFloat(String string, ExcelContentProperty contentProperty) throws ParseException {
if (!hasFormat(contentProperty)) {
return Float.valueOf(string);
}
return parse(string, contentProperty).floatValue();
}
/**
* parse
*
* @param string
* @param contentProperty
* @return
*/
public static BigDecimal parseBigDecimal(String string, ExcelContentProperty contentProperty)
throws ParseException {
if (!hasFormat(contentProperty)) {
return new BigDecimal(string);
}
return BigDecimal.valueOf(parse(string, contentProperty).doubleValue());
}
/**
* parse
*
* @param string
* @param contentProperty
* @return
*/
public static Byte parseByte(String string, ExcelContentProperty contentProperty) throws ParseException {
if (!hasFormat(contentProperty)) {
return Byte.valueOf(string);
}
return parse(string, contentProperty).byteValue();
}
/**
* parse
*
* @param string
* @param contentProperty
* @return
*/
public static Double parseDouble(String string, ExcelContentProperty contentProperty) throws ParseException {
if (!hasFormat(contentProperty)) {
return Double.valueOf(string);
}
return parse(string, contentProperty).doubleValue();
}
private static boolean hasFormat(ExcelContentProperty contentProperty) {
return contentProperty != null && contentProperty.getNumberFormatProperty() != null
&& !StringUtils.isEmpty(contentProperty.getNumberFormatProperty().getFormat());
}
/**
* parse
*
* @param string
* @param contentProperty
* @return
* @throws ParseException
*/
private static Number parse(String string, ExcelContentProperty contentProperty) throws ParseException {
String format = contentProperty.getNumberFormatProperty().getFormat();
RoundingMode roundingMode = contentProperty.getNumberFormatProperty().getRoundingMode();
DecimalFormat decimalFormat = new DecimalFormat(format);
decimalFormat.setRoundingMode(roundingMode);
decimalFormat.setParseBigDecimal(true);
return decimalFormat.parse(string);
}
}