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package structure;
import java.util.*;
public class Grid {
private ArrayList<Router> grid=new ArrayList<>();
private ArrayList<ArrayList<Integer>> links=new ArrayList<>();
private Random rand = new Random();
private final int maxWeight=100;
/**
* Build a 3x3 Grid
*/
public Grid(){
// Build Grid
for(int i=0;i<9;i++){
this.grid.add(new Router());
}
this.buildRandomLink();
this.buildLinks();
}
public void buildRandomLink(){
// First line
this.buildLinkWithRandomWeight(grid.get(0), grid.get(1));
this.buildLinkWithRandomWeight(grid.get(1), grid.get(2));
// Second line
this.buildLinkWithRandomWeight(grid.get(3), grid.get(4));
this.buildLinkWithRandomWeight(grid.get(4), grid.get(5));
// Third line
this.buildLinkWithRandomWeight(grid.get(6), grid.get(7));
this.buildLinkWithRandomWeight(grid.get(7), grid.get(8));
// First column
this.buildLinkWithRandomWeight(grid.get(0), grid.get(3));
this.buildLinkWithRandomWeight(grid.get(3), grid.get(6));
// Second column
this.buildLinkWithRandomWeight(grid.get(1), grid.get(4));
this.buildLinkWithRandomWeight(grid.get(4), grid.get(7));
// Third column
this.buildLinkWithRandomWeight(grid.get(2), grid.get(5));
this.buildLinkWithRandomWeight(grid.get(5), grid.get(8));
}
private void buildLinks(){
// Link1
ArrayList<Integer> link1=new ArrayList<>();
link1.add(0);link1.add(1);link1.add(2);link1.add(5);link1.add(4);link1.add(3);link1.add(6);link1.add(7);link1.add(8);
this.links.add(link1);
// Link2
ArrayList<Integer> link2=new ArrayList<>();
link2.add(0);link2.add(1);link2.add(2);link2.add(5);link2.add(4);link2.add(7);link2.add(8);
this.links.add(link2);
// link3
ArrayList<Integer> link3=new ArrayList<>();
link3.add(0);link3.add(1);link3.add(2);link3.add(5);link3.add(8);
this.links.add(link3);
// link4
ArrayList<Integer> link4=new ArrayList<>();
link4.add(0);link4.add(1);link4.add(4);link4.add(5);link4.add(8);
this.links.add(link4);
// link5
ArrayList<Integer> link5=new ArrayList<>();
link5.add(0);link5.add(3);link5.add(4);link5.add(5);link5.add(8);
this.links.add(link5);
// link6
ArrayList<Integer> link6=new ArrayList<>();
link6.add(0);link6.add(3);link6.add(4);link6.add(7);link6.add(8);
this.links.add(link6);
// link7
ArrayList<Integer> link7=new ArrayList<>();
link7.add(0);link7.add(3);link7.add(6);link7.add(7);link7.add(8);
this.links.add(link7);
// link8
ArrayList<Integer> link8=new ArrayList<>();
link8.add(0);link8.add(3);link8.add(6);link8.add(7);link8.add(4);link8.add(5);link8.add(8);
this.links.add(link8);
// link9
ArrayList<Integer> link9=new ArrayList<>();
link9.add(0);link9.add(3);link9.add(6);link9.add(7);link9.add(4);link9.add(1);link9.add(2);link9.add(5);link9.add(8);
this.links.add(link9);
// link10
ArrayList<Integer> link10=new ArrayList<>();
link10.add(0);link10.add(3);link10.add(4);link10.add(1);link10.add(2);link10.add(5);link10.add(8);
this.links.add(link10);
// link11
ArrayList<Integer> link11=new ArrayList<>();
link11.add(0);link11.add(1);link11.add(4);link11.add(3);link11.add(6);link11.add(7);link11.add(8);
this.links.add(link11);
}
private void buildLinkWithRandomWeight(Router router1, Router router2){
router1.buildLink(router2, rand.nextInt(this.maxWeight));
}
public int getBestLinkIndex(){
int currentBestLink=0;
int currentBestLinkBottleneck=0;
for(int i=0;i<this.links.size();i++){
ArrayList<Integer> currentLink=this.links.get(i);
int currentLinkBottleneck=this.getMaxBottleneck(currentLink);
if(currentBestLinkBottleneck<currentLinkBottleneck){
currentBestLink=i;
currentBestLinkBottleneck=currentLinkBottleneck;
}
}
return currentBestLink;
}
private int getMaxBottleneck(ArrayList<Integer> link){
int max=this.getWeigthOfLink(link.get(0), link.get(1));
for(int j=1;j<link.size()-1;j++){
int currentMax=this.getWeigthOfLink(link.get(j), link.get(j+1));
if(max>currentMax){
max=currentMax;
}
}
return max;
}
private int getWeigthOfLink(int router1,int router2){
return this.grid.get(router1).getWeight(this.grid.get(router2));
}
public void printLinkWeight(){
for(int i=0;i<this.links.size();i++){
ArrayList<Integer> link=this.links.get(i);
System.out.print("Link number " + i + " ==> ");
for(int j=0;j<link.size()-1;j++){
System.out.print(this.getWeigthOfLink(link.get(j), link.get(j+1)) + " ");
}
System.out.println(" Goulot :"+this.getMaxBottleneck(link));
//System.out.println();
}
}
public boolean isEdgeOfLink(ArrayList<Integer>link, Router src, Router dest){
for(int j=0;j<link.size()-1;j++){
Router current=this.grid.get(link.get(j));
if(src.name.equals(current.name)){
if(j<link.size()-1){
Router currentDest=this.grid.get(link.get(j+1));
if(currentDest.name.equals(dest.name)){
return true;
}
}
}
}
for(int j=0;j<link.size()-1;j++){
Router current=this.grid.get(link.get(j));
if(dest.name.equals(current.name)){
if(j<link.size()-1){
Router currentDest=this.grid.get(link.get(j+1));
if(currentDest.name.equals(src.name)){
return true;
}
}
}
}
return false;
}
public ArrayList<Router> getGrid() {
return grid;
}
public void setGrid(ArrayList<Router> grid) {
this.grid = grid;
}
public ArrayList<ArrayList<Integer>> getLinks() {
return links;
}
public void setLinks(ArrayList<ArrayList<Integer>> links) {
this.links = links;
}
}
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