com.dp2345.template.method.CurrencyMethod.java Source code

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Here is the source code for com.dp2345.template.method.CurrencyMethod.java

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/*
 * Copyright 2013-2015 cetvision.com. All rights reserved.
 * Support: http://www.cetvision.com
 * License: http://www.cetvision.com/license
 */
package com.dp2345.template.method;

import java.math.BigDecimal;
import java.util.List;

import org.apache.commons.lang.StringUtils;
import org.springframework.stereotype.Component;

import com.dp2345.Setting;
import com.dp2345.util.SettingUtils;

import freemarker.template.SimpleScalar;
import freemarker.template.TemplateMethodModel;
import freemarker.template.TemplateModelException;

/**
 * ? - ??
 * 
 * @author CETVISION CORP
 * @version 2.0.3
 */
@Component("currencyMethod")
public class CurrencyMethod implements TemplateMethodModel {

    @SuppressWarnings("rawtypes")
    public Object exec(List arguments) throws TemplateModelException {
        if (arguments != null && !arguments.isEmpty() && arguments.get(0) != null
                && StringUtils.isNotEmpty(arguments.get(0).toString())) {
            boolean showSign = false;
            boolean showUnit = false;
            if (arguments.size() == 2) {
                if (arguments.get(1) != null) {
                    showSign = Boolean.valueOf(arguments.get(1).toString());
                }
            } else if (arguments.size() > 2) {
                if (arguments.get(1) != null) {
                    showSign = Boolean.valueOf(arguments.get(1).toString());
                }
                if (arguments.get(2) != null) {
                    showUnit = Boolean.valueOf(arguments.get(2).toString());
                }
            }
            Setting setting = SettingUtils.get();
            BigDecimal amount = new BigDecimal(arguments.get(0).toString());
            String price = setting.setScale(amount).toString();
            if (showSign) {
                price = setting.getCurrencySign() + price;
            }
            if (showUnit) {
                price += setting.getCurrencyUnit();
            }
            return new SimpleScalar(price);
        }
        return null;
    }

}