com.xiongyingqi.common.logic.config.method.impl.RemainderMethod Maven / Gradle / Ivy

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package com.xiongyingqi.common.logic.config.method.impl;

import com.xiongyingqi.common.logic.config.annotation.ConvertMethodName;
import com.xiongyingqi.common.logic.config.method.ConvertException;
import com.xiongyingqi.common.logic.config.method.ConvertMethod;
import com.xiongyingqi.common.logic.config.vo.Condition;

import java.math.BigDecimal;

/**
 * 取余方法
 *
 * @author xiongyingqi
 * @since 20171019//
 */
@ConvertMethodName("remainder")
public class RemainderMethod implements ConvertMethod {
  @Override
  public String execute(String fieldValue, Condition condition) throws ConvertException {
    if (fieldValue == null) {
      return null;
    }

    try {
      BigDecimal value = new BigDecimal(fieldValue);
      BigDecimal remainder = value.remainder(new BigDecimal(10));
      return remainder.toString();
    } catch (Exception e) {
      throw new ConvertException("Error when convert value: " + fieldValue + " cause: " + e.getMessage(), e);
    }
  }
}