package com.nailabs.abac.process;

import java.util.*;

/**
 * Factory for creating a specific strategy.
 */
public class StrategyFactory {

    public static Strategy getStrategy(HashMap config) {
        Strategy strat = null;
        System.out.println("config = " + config);
        Properties props = (Properties)config.get("Strategy");
        String type = props.getProperty("type");
        NegotiationContext context = (NegotiationContext)config.get("context");
        if(type == null) {                 // if no config then use default 
            strat = new Strategy(context);
            System.out.print("Creating default strategy for ");
        } else if(type.equalsIgnoreCase("Stingy")) { 
            // stingy strategy construction
            StingyStrategy stingy = new StingyStrategy(context, props);
            System.out.print("Creating stingy strategy for ");
            strat = stingy;
        } else {                           // default strategy construction
            strat = new Strategy(context);
            System.out.print("Creating default strategy for ");
        }
        System.out.println(context.getSelf());
        return strat;
    }

}