war/src/main/java/pnews/HTML.java

   1 package pnews;
   2
   3 import java.io.UnsupportedEncodingException;
   4 import java.net.URLEncoder;
   5 import java.util.List;
   6 import java.util.logging.Level;
   7 import java.util.logging.Logger;
   8
   9 public class HTML {
  10         private static final String CLASS_NAME= HTML.class.getName();
  11         private static final Logger LOG = Logger.getLogger(CLASS_NAME);
  12
  13         private static void appendA(StringBuffer buf, String child, String href, String cl) {
  14                 buf.append("<a href='");
  15                 buf.append(href);
  16                 buf.append("'");
  17                 if (cl != null) {
  18                         buf.append(" class='");
  19                         buf.append(cl);
  20                         buf.append('\'');
  21                 }
  22                 buf.append('>');
  23                 buf.append(child);
  24                 buf.append("</a>");
  25         }
  26
  27         private static void appendDiv(StringBuffer buf, String child) {
  28                 buf.append("<div>");
  29                 buf.append(child);
  30                 buf.append("</div>\n");
  31         }
  32
  33         private static void appendP(StringBuffer buf, String child) {
  34                 buf.append("<p>");
  35                 buf.append(child);
  36                 buf.append("</p>\n");
  37         }
  38
  39         private static void append(StringBuffer buf, Article a) throws UnsupportedEncodingException {
  40                 buf.append("<div class='article'>\n");
  41
  42                 buf.append("<div class='article-image'>\n");
  43                 if (a.thumbnail != null) {
  44                         buf.append("<img class='left' src='");
  45                         buf.append(a.thumbnail);
  46                         buf.append("'/>\n");
  47                 }
  48                 buf.append("</div>\n");
  49
  50                 buf.append("<div class='article-content'>\n");
  51
  52                 buf.append("<div class='article-title'>\n");
  53                 appendA(buf, a.title, "redirect?url=" + URLEncoder.encode(a.link, "UTF-8"), null);
  54                 buf.append("</div>\n");
  55
  56                 buf.append("<div class='article-info'>" + a.website + " - " + a.publicationDate + "</div>");
  57
  58                 buf.append("<div class='article-description'>\n");
  59                 if (a.description != null) {
  60                         buf.append("<p>");
  61                         buf.append(a.description);
  62                         buf.append("</p>");
  63                 }
  64                 buf.append("</div>\n");
  65
  66                 buf.append("</div>\n");
  67
  68                 buf.append("</div>\n");
  69         }
  70
  71         private static void appendMenu(StringBuffer buf, Category catActive) {
  72                 String cl;
  73
  74                 buf.append("<nav>\n");
  75                 buf.append("<ul>\n");
  76
  77                 for (Category cat: Category.values()) {
  78                         buf.append("<li>");
  79
  80                         if (cat.equals(catActive))
  81                                 cl = "active";
  82                         else
  83                                 cl = null;
  84
  85                         appendA(buf, cat.getId(), cat.getId(), cl);
  86                         buf.append("</li>");
  87                 }
  88
  89                 buf.append("</ul>\n");
  90                 buf.append("</nav>\n");
  91         }
  92
  93         public static String toHTML(List<Article> articles, Category catActive) {
  94                 StringBuffer buf;
  95                 int i;
  96
  97                 buf = new StringBuffer();
  98                 buf.append("<!DOCTYPE html>\n");
  99                 buf.append("<html lang='fr'>\n");
 100                 buf.append("<head>\n");
 101                 buf.append("<meta charset=\"UTF-8\">\n");
 102                 buf.append("<link rel='stylesheet' href='style.css' />\n");
 103                 buf.append("<title>PNews</title>\n");
 104                 buf.append("</head>\n");
 105                 buf.append("<body>\n");
 106
 107                 appendMenu(buf, catActive);
 108
 109                 i = 0;
 110                 for (Article e: articles) {
 111                         try {
 112                                 append(buf, e);
 113                         } catch (UnsupportedEncodingException e1) {
 114                                 LOG.log(Level.SEVERE, "fail to convert article to HTML", e1);
 115                         }
 116                         if (i == 100)
 117                                 break;
 118                         else
 119                                 i++;
 120                 }
 121
 122                 buf.append("</body>\n");
 123                 buf.append("</html>\n");
 124
 125                 return buf.toString();
 126         }
 127 }