filterondata.java

一个用于排队系统仿真的开源软件,有非常形象的图象仿真过程!

package jmt.engine.jwat.filters;

import java.text.DateFormat;
import java.text.ParseException;
import java.util.Date;

import jmt.engine.jwat.Observation;

public class FilterOnData implements FilterOnVariable {

	Date from,to;
	private int varIndex;
	
	public FilterOnData(Date from,Date to,int index)
	{
		this.from=from;
		this.to=to;
		varIndex=index;
	}
	
	public int getVarIndex()
	{
		return varIndex;
	}
	
	public boolean isMatching(String value) {
		Date val=null;
		try 
		{
			val=DateFormat.getDateInstance().parse(value);
		} catch (ParseException e) {
			return false;
		}
		if (val.compareTo(from)<0) return false;
		if (val.compareTo(to)>0) return false;
		return true;
	}

	public boolean isMatching(Observation o, int pos) {
		Date val = null;
		val = new Date((long)o.getIndex(varIndex));
		if (val.compareTo(from)<0) return false;
		if (val.compareTo(to)>0) return false;
		return true;
	}

}