ItemUtil.java

/*
   Copyright 2013 Nationale-Nederlanden

   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 nl.nn.adapterframework.statistics;

import java.text.DecimalFormat;

import nl.nn.adapterframework.util.XmlBuilder;

/**
 * Utility functions to process statistics items.
 * @author  Gerrit van Brakel
 * @since   4.9.9
 */
public class ItemUtil {

	public static void addItem(XmlBuilder xml, String name, String value) {
		XmlBuilder item = new XmlBuilder("item");
	
		item.addAttribute("name", name);
		item.addAttribute("value", value);
		xml.addSubElement(item);
	}
	public static void addItem(XmlBuilder xml, String name, Long value) {
		addItem(xml,name,""+value);
	}
	
	public static XmlBuilder getSummaryContainer(XmlBuilder parent, String name) {
		if (parent==null) {
			throw new NullPointerException("parent XmlBuilder cannot be null");
		}
		if (name!=null) {
			parent.addAttribute("name", name);
		}
		XmlBuilder stats = new XmlBuilder("summary");
		parent.addSubElement(stats);
		return stats;
	}

	public static XmlBuilder toXml(ItemList il, String elementName, String name, DecimalFormat timeFormat, DecimalFormat percentageFormat) {
		return toXml(il, elementName, name, timeFormat, percentageFormat, null);
	}

	public static XmlBuilder toXml(ItemList il, String elementName, String name, DecimalFormat timeFormat, DecimalFormat percentageFormat, DecimalFormat countFormat) {
		XmlBuilder container = new XmlBuilder(elementName);
		XmlBuilder stats = getSummaryContainer(container, name);
	
		for (int i=0; i<il.getItemCount(); i++) {
			Object item = il.getItemValue(i);
			if (item==null) {
				addItem(stats, il.getItemName(i), ItemList.ITEM_VALUE_NAN);
			} else {
				String value = "";
				switch (il.getItemType(i)) {
					case ItemList.ITEM_TYPE_INTEGER: 
						if (countFormat==null) {
							value = ""+ (Long)item;
						} else {
							value = countFormat.format((Long)item);
						}
						break;
					case ItemList.ITEM_TYPE_TIME: 
						value = timeFormat.format(item);
						break;
					case ItemList.ITEM_TYPE_FRACTION:
						value = percentageFormat.format(((Double)item).doubleValue()*100)+ "%";
						break;
				}
				addItem(stats, il.getItemName(i), value);
			}
		}
		return container;
	}

	public static String getItemValueFormated(ItemList il, int index) {
		Object item = il.getItemValue(index);
		if (item==null) {
			return ItemList.ITEM_VALUE_NAN;
		} else {
			switch (il.getItemType(index)) {
				case StatisticsKeeper.ITEM_TYPE_INTEGER: 
					return ""+ (Long)item;
				case StatisticsKeeper.ITEM_TYPE_TIME: 
					DecimalFormat df=new DecimalFormat(ItemList.ITEM_FORMAT_TIME);
					return df.format(item);
				case StatisticsKeeper.ITEM_TYPE_FRACTION:
					DecimalFormat pf=new DecimalFormat(ItemList.ITEM_FORMAT_PERC);
					return ""+pf.format(((Double)item).doubleValue()*100);
				default:
					return item.toString();
			}
		}
	}
    

}