src/be/nikiroo/gofetch/output/Gopher.java

   1 package be.nikiroo.gofetch.output;
   2
   3 import be.nikiroo.gofetch.StringJustifier;
   4 import be.nikiroo.gofetch.data.Comment;
   5 import be.nikiroo.gofetch.data.Story;
   6 import be.nikiroo.gofetch.support.BasicSupport.Type;
   7
   8 public class Gopher extends Output {
   9         static private final int LINE_SIZE = 67;
  10
  11         public Gopher(Type type, String hostname, String preselector, int port) {
  12                 super(type, hostname, preselector, port);
  13         }
  14
  15         @Override
  16         public String getIndexHeader() {
  17                 StringBuilder builder = new StringBuilder();
  18
  19                 appendCenter(builder, "NEWS", true);
  20                 appendLeft(builder, "", "");
  21                 appendLeft(builder, "You will find here a few pages full of news.", "");
  22                 appendLeft(builder, "", "");
  23                 appendLeft(
  24                                 builder,
  25                                 "They are simply scrapped from their associated webpage and converted into a gopher friendly format, updated a few times a day.",
  26                                 "");
  27                 appendLeft(builder, "", "");
  28
  29                 return builder.toString();
  30         }
  31
  32         @Override
  33         public String getIndexFooter() {
  34                 return "";
  35         }
  36
  37         @Override
  38         public String exportHeader(Story story) {
  39                 return append(new StringBuilder(), story, true).append("i\r\ni\r\n")
  40                                 .toString();
  41         }
  42
  43         @Override
  44         public String export(Story story) {
  45                 StringBuilder builder = new StringBuilder();
  46                 append(builder, story, false);
  47
  48                 builder.append("i\r\n");
  49
  50                 if (story.getComments() != null) {
  51                         for (Comment comment : story.getComments()) {
  52                                 append(builder, comment, "");
  53                         }
  54                 }
  55
  56                 builder.append("i\r\n");
  57
  58                 return builder.toString();
  59         }
  60
  61         private StringBuilder append(StringBuilder builder, Comment comment,
  62                         String space) {
  63
  64                 if (space.length() > LINE_SIZE - 20) {
  65                         space = space.substring(0, LINE_SIZE - 20);
  66                 }
  67
  68                 appendLeft(builder, comment.getTitle(), ">> ", "   ", space);
  69                 appendLeft(builder, "(" + comment.getAuthor() + ")", "   ", "   ",
  70                                 space);
  71
  72                 builder.append("i\r\n");
  73
  74                 appendLeft(builder, comment.getContent(), "   ", "   ", space);
  75
  76                 builder.append("i\r\n");
  77                 for (Comment subComment : comment) {
  78                         append(builder, subComment, space + "   ");
  79                         builder.append("i\r\n");
  80                 }
  81
  82                 return builder;
  83         }
  84
  85         private StringBuilder append(StringBuilder builder, Story story,
  86                         boolean resume) {
  87                 if (!resume) {
  88                         appendCenter(builder, story.getTitle(), true);
  89                         builder.append("i\r\n");
  90                         appendJustified(builder, story.getDetails(), "  ");
  91                         builder.append("i\r\n");
  92
  93                         builder.append("i  o News link: ").append(story.getUrlInternal())
  94                                         .append("\r\n");
  95                         builder.append("i  o Source link: ").append(story.getUrlExternal())
  96                                         .append("\r\n");
  97                         builder.append("i\r\n");
  98
  99                         builder.append("i\r\n");
 100
 101                         appendJustified(builder, story.getFullContent(), "    ");
 102                 } else {
 103                         builder.append('1').append(story.getTitle()) //
 104                                         .append('\t').append("0").append(story.getSelector()) //
 105                                         .append('\t').append(hostname) //
 106                                         .append('\t').append(port) //
 107                                         .append("\r\n");
 108                         appendJustified(builder, story.getDetails(), "  ");
 109                         builder.append("i\r\n");
 110
 111                         appendJustified(builder, story.getContent(), "    ");
 112                 }
 113
 114                 builder.append("i\r\n");
 115
 116                 return builder;
 117         }
 118
 119         // note: adds "i"
 120         private static void appendCenter(StringBuilder builder, String text,
 121                         boolean allCaps) {
 122                 if (allCaps) {
 123                         text = text.toUpperCase();
 124                 }
 125
 126                 for (String line : StringJustifier.center(text, LINE_SIZE)) {
 127                         builder.append("i").append(line).append("\r\n");
 128                 }
 129         }
 130
 131         // note: adds "i"
 132         private static void appendJustified(StringBuilder builder, String text,
 133                         String space) {
 134                 for (String line : StringJustifier.full(text,
 135                                 LINE_SIZE - space.length())) {
 136                         builder.append("i").append(line).append("\r\n");
 137                 }
 138         }
 139
 140         // note: adds "i"
 141         private static void appendLeft(StringBuilder builder, String text,
 142                         String space) {
 143                 appendLeft(builder, text, "", "", space);
 144         }
 145
 146         // note: adds "i"
 147         private static void appendLeft(StringBuilder builder, String text,
 148                         String prependFirst, String prependOthers, String space) {
 149                 String prepend = prependFirst;
 150                 for (String line : StringJustifier.left(text,
 151                                 LINE_SIZE - space.length())) {
 152                         builder.append("i").append(space).append(prepend).append(line)
 153                                         .append("\r\n");
 154                         prepend = prependOthers;
 155                 }
 156         }
 157 }