source: src/main/java/agents/anac/y2013/MetaAgent/AgentManager.java@ 126

package agents.anac.y2013.MetaAgent;

import java.io.Serializable;
import java.util.AbstractMap.SimpleEntry;
import java.util.HashMap;
import java.util.Set;

import agents.anac.y2013.MetaAgent.agentsData.AgentData;
import agents.anac.y2013.MetaAgent.agentsData.agents.DataAgentLG;
import agents.anac.y2013.MetaAgent.agentsData.agents.DataBRAMAgent2;
import agents.anac.y2013.MetaAgent.agentsData.agents.DataCUHKAgent;
import agents.anac.y2013.MetaAgent.agentsData.agents.DataIAMhaggler2012;
import agents.anac.y2013.MetaAgent.agentsData.agents.DataOMACagent;
import agents.anac.y2013.MetaAgent.agentsData.agents.DataTheNegotiatorReloaded;
import agents.anac.y2013.MetaAgent.portfolio.AgentLG.*;
import agents.anac.y2013.MetaAgent.portfolio.AgentMR.*;
import agents.anac.y2013.MetaAgent.portfolio.BRAMAgent2.*;
import agents.anac.y2013.MetaAgent.portfolio.CUHKAgent.*;
import agents.anac.y2013.MetaAgent.portfolio.IAMhaggler2012.*;
import agents.anac.y2013.MetaAgent.portfolio.OMACagent.*;
import agents.anac.y2013.MetaAgent.portfolio.thenegotiatorreloaded.*;
import genius.core.*;


@SuppressWarnings("serial")
public class AgentManager implements Serializable{
        HashMap<String, SimpleEntry<Integer, SimpleEntry<Double, Double>>> agents; //<Agent name, <countUsages, predictedScore>>
        int playsCount = 0;
        int predictionFactor = 5;
        String selectedAgent = "";
        SimpleEntry<Integer, SimpleEntry<Double, Double>> selectedInfo = new SimpleEntry<Integer, SimpleEntry<Double, Double>>(0,new SimpleEntry<Double, Double>(0.0,0.0)); //<counter,predicted,previousScores>
        double averageUtility = 0;
        double stdev = 0;
        
        public AgentManager(){
                agents = new HashMap<String, SimpleEntry<Integer, SimpleEntry<Double, Double>>>();
                agents.put("AgentLG", new SimpleEntry<Integer, SimpleEntry<Double, Double>>(0,new SimpleEntry<Double, Double>(0.0,0.0)));
                //agents.put("AgentMR", new SimpleEntry<Integer, Double>(0, 0.0));
                agents.put("BRAMAgent2", new SimpleEntry<Integer, SimpleEntry<Double, Double>>(0,new SimpleEntry<Double, Double>(0.0,0.0)));
                agents.put("CUHKAgent", new SimpleEntry<Integer, SimpleEntry<Double, Double>>(0,new SimpleEntry<Double, Double>(0.0,0.0)));
                agents.put("IAMhaggler2012", new SimpleEntry<Integer, SimpleEntry<Double, Double>>(0,new SimpleEntry<Double, Double>(0.0,0.0)));
                agents.put("OMACagent", new SimpleEntry<Integer, SimpleEntry<Double, Double>>(0,new SimpleEntry<Double, Double>(0.0,0.0)));
                agents.put("TheNegotiatorReloaded", new SimpleEntry<Integer, SimpleEntry<Double, Double>>(0,new SimpleEntry<Double, Double>(0.0,0.0)));
                
        }
        
        private Agent GetAgent(String name){
                
                if (name.equalsIgnoreCase("AgentLG")) return new AgentLG();
                else if (name.equalsIgnoreCase("AgentMR")) return new AgentMR();
                else if (name.equalsIgnoreCase("BRAMAgent2")) return new BRAMAgent2();
                else if (name.equalsIgnoreCase("CUHKAgent")) return new CUHKAgent();
                else if (name.equalsIgnoreCase("IAMhaggler2012")) return new IAMhaggler2012();
                else if (name.equalsIgnoreCase("OMACagent")) return new OMACagent();
                else if (name.equalsIgnoreCase("TheNegotiatorReloaded")) return new TheNegotiatorReloaded();
                
                return new CUHKAgent(); //default, as winner of 2012 contest.
        }
        
        public AgentData GetAgentData(String name){
                if (name.equalsIgnoreCase("AgentLG")) return new DataAgentLG();
                else if (name.equalsIgnoreCase("AgentMR")) return new DataAgentLG();
                else if (name.equalsIgnoreCase("BRAMAgent2")) return new DataBRAMAgent2();
                else if (name.equalsIgnoreCase("CUHKAgent")) return new DataCUHKAgent();
                else if (name.equalsIgnoreCase("IAMhaggler2012")) return new DataIAMhaggler2012();
                else if (name.equalsIgnoreCase("OMACagent")) return new DataOMACagent();
                else if (name.equalsIgnoreCase("TheNegotiatorReloaded")) return new DataTheNegotiatorReloaded();
                
                return new DataCUHKAgent(); //default, as winner of 2012 contest.
        }
        
        public Agent SelectBestAgent(){
                String bestAgent = "";
                double bestScore = -1;
                
                //String fileName = "MetaAgent_Log.csv"; //need to delete!
                //BufferedWriter out = null; //
                //try { //
                //      FileWriter fstream = new FileWriter(fileName,true); //
                //      out = new BufferedWriter(fstream); //
                
                for (String agent : agents.keySet()) {
                        SimpleEntry<Integer, SimpleEntry<Double, Double>> information = agents.get(agent);
                        double curr = (information.getValue().getValue()*information.getKey() + information.getValue().getKey()*predictionFactor)/(information.getKey()+predictionFactor) ;
                        double curr2 = Math.sqrt(stdev * Math.log(playsCount+agents.size()*predictionFactor)/(information.getKey()+predictionFactor)); //UCB MAB: X_j + sqrt(2ln(n)/n_j)
                        curr += curr2;
                //      out.append(agent + "," + information.getKey() + "," + information.getValue().getValue() + "," + information.getValue().getKey() +  "," + curr); //
                //      out.newLine();//
                        
                        if (bestScore < curr || //regular win
                                        (bestScore == curr && agents.get(bestAgent).getKey() > information.getKey())){ //tieBreak - take the agent with less performances
                                bestScore = curr;
                                bestAgent = agent;
                                selectedInfo = information;
                        }
                }
                selectedAgent = bestAgent;
                
                
                //System.out.println("selected Agent: " + bestAgent + " --> " + bestScore); //
                //out.append(",,,"+bestAgent+","+bestScore); //
                //out.newLine(); // 
                        
                //} catch (Exception e) { System.out.println("Error in WriteFile: " + e.toString());            } //
                //finally{ try {  //
                //      out.close(); //
                //} catch (Exception e2) { }} //
                
                return GetAgent(selectedAgent);
        }
        
        public boolean IsUsed(){
                return playsCount > agents.size();
        }
        
        public Set<String> GetAgents(){
                return agents.keySet();
        }
        
        public void UpdateUtility (String agent, double util){
                if (agent == ""){
                        selectedInfo = new SimpleEntry<Integer, SimpleEntry<Double, Double>>
                                (selectedInfo.getKey()+1, new SimpleEntry<Double, Double>
                                (selectedInfo.getValue().getKey(),
                                                (selectedInfo.getValue().getValue()*selectedInfo.getKey() + util - averageUtility)/(selectedInfo.getKey() + 1)));
                        agents.put(selectedAgent, selectedInfo);
                        //averageUtility = (averageUtility * playsCount + util) / (playsCount + 1);  //receiveMessage the average utility measure
                        playsCount ++;
                }
                else
                {
                        SimpleEntry<Integer, SimpleEntry<Double, Double>> info = new SimpleEntry<Integer, SimpleEntry<Double, Double>>(0, new SimpleEntry<Double, Double>(util, 0.0));
                        agents.put(agent,info);
                        //System.out.println(agent + " --> " + util); //delete
                }
                 
        }
        
        public void SetAvgUtil (double avg, double stdev){
                averageUtility = avg;
                this.stdev = stdev;
        }
}