com.clican.pluto.dataprocess.dpl.function.impl.BaseParamSingleRowFunction.java Source code

Introduction

Here is the source code for com.clican.pluto.dataprocess.dpl.function.impl.BaseParamSingleRowFunction.java

Source

/**
 * The Clican-Pluto software suit is Copyright 2009, Clican Company and individual contributors, and is licensed under the GNU LGPL.
 *
 * @author clican
 *
 */
package com.clican.pluto.dataprocess.dpl.function.impl;

import java.util.Map;

import org.apache.commons.beanutils.MethodUtils;

import com.clican.pluto.dataprocess.exception.CalculationException;
import com.clican.pluto.dataprocess.exception.PrefixAndSuffixException;

/**
 * ???,???calculate,??.
 * 
 * @author clican
 * 
 */
public abstract class BaseParamSingleRowFunction extends BaseSingleRowFunction {

    public final static String CALCULATE_METHOD_NAME = "calculate";

    public Object calculate(Map<String, Object> row) throws CalculationException, PrefixAndSuffixException {
        Object[] arg = new Object[this.pasList.size()];
        Class<?>[] classType = new Class<?>[this.pasList.size()];
        for (int i = 0; i < pasList.size(); i++) {
            arg[i] = pasList.get(i).getValue(row);
            if (arg[i] != null) {
                classType[i] = arg[i].getClass();
            } else {
                classType[i] = Object.class;
            }
        }
        try {
            Object result = MethodUtils.invokeMethod(this, CALCULATE_METHOD_NAME, arg, classType);
            return result;
        } catch (Exception e) {
            throw new CalculationException(e);
        }
    }
}

// $Id$