content: /*
   * $Id$
   * 
   * This file is part of the MoSKito software project
   * that is hosted at http://moskito.dev.java.net.
   * 
   * All MoSKito files are distributed under MIT License:
   * 
   * Copyright (c) 2006 The MoSKito Project Team.
   * 
   * Permission is hereby granted, free of charge,
   * to any person obtaining a copy of this software and
   * associated documentation files (the "Software"), 
   * to deal in the Software without restriction, 
   * including without limitation the rights to use,
   * copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit 
   * persons to whom the Software is furnished to do so, 
   * subject to the following conditions:
   * 
   * The above copyright notice and this permission notice
   * shall be included in all copies 
   * or substantial portions of the Software.
   * 
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY
   * OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT 
   * LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
   * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
   * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
   * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
   * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
   * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   */	
  package net.anotheria.moskito.core.producers;
  
  import net.anotheria.moskito.core.stats.StatValue;
  import net.anotheria.moskito.core.stats.TimeUnit;
  
  import java.util.Collections;
  import java.util.LinkedList;
  import java.util.List;
  
  /**
   * This abstract class is the super class of all statistical value sets.
   * @author lrosenberg
   */
  public abstract class AbstractStats implements IStats, StatsMXBean{
  	
  	/**
  	 * Constant for MegaByte.
  	 */
  	protected static final long MB = 1024L*1024;
  
  	/**
  	 * Name of the stats object. This can be a method name, an url, a business key figure etc.
  	 */
  	private String name;
  	/**
  	 * Cached empty list object.
  	 */
  	private static final List<String> EMPTY_LIST = Collections.emptyList();
  
  	/**
  	 * Contains all stat values that are part of this StatsObject. This is used to properly destroy them.
  	 */
  	private LinkedList<StatValue> statValuesList = new LinkedList<StatValue>();
  
  	/**
  	 * Creates a new AbstractStats object.
  	 */
  	protected AbstractStats(){
  		this("unnamed");
  	}
  	
  	/**
  	 * Creates a new AbstractStats object with given name.
  	 * @param aName name of the stats object.
  	 */
  	protected AbstractStats(String aName){
  		name = aName;
  	}
  	
  	public String getName(){
  		return name;
  	}
  	
  	@Override public String toStatsString() {
  		return toStatsString(TimeUnit.MILLISECONDS);
  	}
  
  	@Override public String toStatsString(String intervalName) {
  		return toStatsString(intervalName, TimeUnit.MILLISECONDS);
  	}
  	
  	@Override public String toStatsString(TimeUnit timeUnit) {
  		return toStatsString(null, timeUnit);
  	}
  
  	/**
  	 * Not supported by default. 
  	 */
  	public CallExecution createCallExecution(){
  		throw new AssertionError("Not implemented");
  	}
  	
  	@Override
  	public String getValueByNameAsString(String valueName, String intervalName, TimeUnit timeUnit){
  		return null;
  	}
  
  	@Override
  	public List<String> getAvailableValueNames() {
  		return EMPTY_LIST;
  	}
  	
  	@Override 
  	public String toString(){
  		return getName();
  	}
  
  	@Override public boolean isEmpty(String intervalName){
  		return false;
  	}
  
  	@Override
  	public void destroy() {
  		for (StatValue v : statValuesList){
  			v.destroy();
  		}
  	}
  
  	protected void addStatValues(StatValue... values){
  		if (values==null)
  			return;
  		Collections.addAll(statValuesList, values);
  	}
  }
  