source: src/main/java/agents/anac/y2015/group2/G2IssueSubSet.java

package agents.anac.y2015.group2;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;

class G2IssueSubSet {
        ArrayList<String> issues;
        LinkedList<G2SubBid> subBids;
        
        G2IssueSubSet (String issue, LinkedList<G2SubBid> subBids) {
                issues = new ArrayList<String>(1);
                issues.add(issue);
                
                this.subBids = subBids;
        }
        
        G2IssueSubSet(G2IssueSubSet one, G2IssueSubSet two) {
                issues = new ArrayList<String>(one.issues.size() + two.issues.size());
                issues.addAll(one.issues);
                issues.addAll(two.issues);
                
                subBids = new LinkedList<G2SubBid>();
                for(G2SubBid bidOne : one.subBids) {
                        for(G2SubBid bidTwo : two.subBids) {
                                subBids.add(new G2SubBid(bidOne, bidTwo));
                        }
                }
        }
        
        ArrayList<G2Bid> generateBids() {
                ArrayList<G2Bid> bids = new ArrayList<G2Bid>();
                for(G2SubBid subBid: subBids) {
                        HashMap<String, String> map = new HashMap<String, String>();
                        for(int i=issues.size()-1;i>=0; i--) {
                                map.put(issues.get(i), subBid.getValue(i));
                        }
                        bids.add(new G2Bid(map));
                }
                return bids;
        }
        
        void trimSubBids() {
                Collections.sort(subBids);
                Iterator<G2SubBid> iter = subBids.descendingIterator();
                G2SubBid previous = null;
                
                while(iter.hasNext()) {
                        G2SubBid curr = iter.next();
                        if (!curr.hasHigherOtherUtilities(previous)) {
                                //System.out.println("Bid removed");
                                iter.remove();
                        }
                        previous = curr;
                }
        }
}