ProgramRule.java

package edu.isi.karma.cleaning;

import java.util.HashMap;


public class ProgramRule {
	public HashMap<String, InterpreterType> rules = new HashMap<String, InterpreterType>();
	public HashMap<String, String> strRules = new HashMap<String, String>();
	public PartitionClassifierType pClassifier;
	public static Interpretor itInterpretor;
	public String signString = "";
	public static String IDENTITY = "substr(value,'START','END')";
	public boolean nullRule = false;
	public ProgramRule(Program prog)
	{
		this.pClassifier = prog.classifier;
		initInterpretor();
	}
	public ProgramRule(String rule)
	{
		initInterpretor();
		InterpreterType worker = itInterpretor.create(rule);
		rules.put( "attr_0", worker);
		
	}
	public String transform(String value)
	{
		String s2 = rules.get("attr_0").execute(value);
		return s2;
	}
	public void initInterpretor()
	{
		if(itInterpretor == null)
			itInterpretor = new Interpretor();
	}
	public InterpreterType getRuleForValue(String value)
	{
		String c = getClassForValue(value);
		
		return getWorkerForClass(c);
	}
	public String getClassForValue(String value)
	{
		String labelString = "attr_0";
		if(value.length() == 0)
			return labelString;
		if(pClassifier != null)
		{
			labelString = pClassifier.getLabel(value);
		}
		return labelString;
		
	}
	public InterpreterType getWorkerForClass(String category)
	{
		if(category != "")
		{
			InterpreterType rule = this.rules.get(category);
			return rule;
		}
		else {
			return rules.values().iterator().next();
		}
	}
	public void updateClassworker(String category,String newRule)
	{
		this.rules.remove(category);
		this.strRules.remove(category);
		addRule(category, newRule);
		
	}
	public void addRule(String partition, String rule)
	{
		InterpreterType worker = itInterpretor.create(rule);
		this.signString += rule;
		rules.put(partition, worker);
		strRules.put(partition, rule);
	}
	public String getStringRule(String par)
	{
		return this.strRules.get(par);
	}
	public String toString()
	{
		String res = "";
		for(String key:strRules.keySet())
		{
			res += String.format("%s:%s\n",key,strRules.get(key));
		}
		return res;
	}
	public static void main(String[] args)
	{
		
	}
}