?/*
 * Copyright 2006-2007 original author or authors.
 *
 * 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.
 */
package org.ecside.table.cell;

import java.math.BigDecimal;

import org.apache.commons.lang.StringUtils;
import org.ecside.core.TableModel;
import org.ecside.core.TableModelUtils;
import org.ecside.core.bean.Column;
import org.ecside.view.html.ColumnBuilder;


/**
 * @author Wei Zijun
 *
 */

public class RowCalcAvgCell implements Cell  {
	
    public String getHtmlDisplay(TableModel model, Column column) {
    	ColumnBuilder columnBuilder = new ColumnBuilder(column);
        columnBuilder.tdStart();
        columnBuilder.tdBody(getCellValue(model, column));
        columnBuilder.tdEnd();
        return columnBuilder.toString();
    }
    
    public String getExportDisplay(TableModel model, Column column) {
        return column.getPropertyValueAsString();
    }

    protected String getCellValue(TableModel model, Column column) {
        Object rowBean = model.getCurrentRowBean();
        
        String property=column.getProperty();
        
        Object[] propertyNameList;
        if ("*".equals(property)||StringUtils.isBlank(property)){
        	propertyNameList = model.getPropertyNameList().toArray();
        }else{
        	propertyNameList=property.split(",");
        }

        
        double totalValue=0.0;
        int num=0;
        for (int i = 0;i<propertyNameList.length;i++) {
            String  propertyName = (String)propertyNameList[i];
            Object propertyValue = TableModelUtils.getColumnPropertyValue(rowBean, propertyName);
            try{
            	totalValue+=Double.parseDouble((String)propertyValue);
            	// TODO :  :(            	
            	//  num++;
            }catch(Exception e){
            	
            }
        }
        // TODO :  :(
        num=propertyNameList.length;
        
        column.setValue(new BigDecimal(totalValue/num));
        column.setPropertyValue(column.getValue());
        return column.getValueAsString();
    }
}