/
RecommendationRunner.java
104 lines (94 loc) · 5.11 KB
/
RecommendationRunner.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
/**
* Write a description of class RecommendationRunner here.
*
* @author (your name)
* @version (a version number or a date)
*/
import java.util.*;
public class RecommendationRunner implements Recommender
{
public ArrayList<String> getItemsToRate (){
ArrayList<String> res = new ArrayList<String>();
int numToDisplay = 10;
int minimalRaters = 5;
ArrayList<String> movies = MovieDatabase.filterBy(new TrueFilter());
Random rand = new Random();
for(int i = 0; i < numToDisplay; i++){
int r = rand.nextInt(movies.size());
String title = movies.get(r);
if (!res.contains(title)) {
res.add(title);
}
}
return res;
}
public void printRecommendationsFor (String webRaterID){
FourthRatings fr = new FourthRatings();
ArrayList<Rating> ratings = fr.getSimilarRatings(webRaterID,1,1);
int length = 10;
if(ratings.size()<10){
length = ratings.size();
}
if(ratings.size() == 0){
int index = 0;
ArrayList<String> movies = MovieDatabase.filterBy(new TrueFilter());
Random rand = new Random();
HashSet <String> titles = new HashSet <String>();
for(int i =0; i < 10; i++){
int r = rand.nextInt(movies.size());
String title = movies.get(r);
if (ratings.size()!=0 && !titles.contains(title)) {
ratings.add(new Rating(title, 5.00));
titles.add(title);
index++;
}
if(index > 10){
break;
}
}
}
System.out.println
(
"<style>" +
" body { background-color: #1d1f20; }" +
" h2.error { background-color: #ffd700; color: #dc143c; margin: 5; }" +
" #customers, h2 { font-family: \"Trebuchet MS\", Arial, Helvetica, sans-serif;" +
" border-collapse: collapse; width: 100%;text-align: center;}" +
" #custmers td, #customers th, h2 { border: 1px solid #3e3a3a; padding: 8px;}" +
" #customers tr { background-color: #343537; color: #efefef; }" +
" #customers tr:nth-child(even) { background-color: #686666; }" +
" #customers tr:hover { background-color: #ff4444; }" +
" #customers th { padding-top: 12px; padding-bottom: 12px; text-align: center;" +
" background-color: #ef040a; color: white; }" +
" #customers img { height: 50%; }" +
" h2 { background-color: #ef040a; }" +
"</style>" +
"<div class=\"content\">" +
" <div class=\"ui-widget\">" +
" <html>" +
"<h2>BGT Flix - These are some movies you may like</h2>" +
"<table id=\"customers\">" +
" <tr>" +
" <th>#</th>" +
" <th>Poster</th>" +
" <th>Title</th>" +
" <th>Genre</th>" +
" <th>Year</th>" +
" <th>Time</th>" +
" </tr>" +
" <tr>"
);
for(int i=0; i< length; i++) {
int num = i+1;
System.out.println(" <td>"+num+"</td>");
System.out.println(" <td><img src=");
System.out.println( "\""+MovieDatabase.getPoster(ratings.get(i).getItem())+"\"");
System.out.println(" /> </td>");
System.out.println(" <td>"+MovieDatabase.getTitle(ratings.get(i).getItem())+"</td>");
System.out.println(" <td>"+MovieDatabase.getCountry(ratings.get(i).getItem())+"</td>");
System.out.println(" <td>"+MovieDatabase.getYear(ratings.get(i).getItem())+"</td>");
System.out.println(" <td>"+MovieDatabase.getMinutes(ratings.get(i).getItem())+" Minutes"+"</td>");
System.out.println(" </tr>");
}
}
}