src/main/java/eu/svjatoslav/meviz/htmlindexer/AbstractIndexer.java

   1 package eu.svjatoslav.meviz.htmlindexer;
   2
   3 import eu.svjatoslav.meviz.htmlindexer.metadata.Dimension;
   4 import eu.svjatoslav.meviz.htmlindexer.metadata.DirectoryMetadata;
   5 import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.AbstractFile;
   6 import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.DirectoryFile;
   7 import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.GeneralFile;
   8 import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.Picture;
   9
  10 import java.io.File;
  11 import java.io.UnsupportedEncodingException;
  12
  13 public abstract class AbstractIndexer {
  14
  15     public static boolean isImage(final String fileExtension) {
  16         for (final String ext : Constants.SUPPORTED_IMAGE_EXTENSIONS)
  17             if (ext.equals(fileExtension))
  18                 return true;
  19         return false;
  20     }
  21
  22     public static boolean isOgv(final String fileExtension) {
  23         return fileExtension.equalsIgnoreCase("ogv");
  24     }
  25
  26     static boolean shallFileBeIndexed(final File file) {
  27
  28         if (file.getName().startsWith("."))
  29             return false;
  30         if (file.getName().startsWith("index"))
  31             if (file.getName().endsWith(".html"))
  32                 return false;
  33
  34         return true;
  35     }
  36
  37     void compileHtml(final Layout layout,
  38                      final DirectoryMetadata directory)
  39             throws UnsupportedEncodingException {
  40
  41         for (final AbstractFile file : directory.getFiles())
  42             if (file instanceof GeneralFile) {
  43                 final String fileExtension = file.getFileExtension();
  44
  45                 if (isVideo(fileExtension))
  46                     layout.enlistVideo(file);
  47                 else
  48                     layout.enlistFile(file, directory);
  49
  50             } else if (file instanceof Picture)
  51                 layout.enlistImage((Picture) file, directory);
  52             else if (file instanceof DirectoryFile)
  53                 layout.enlistDirectory(file, directory);
  54
  55     }
  56
  57     public abstract String getDirectoryUrl(final AbstractFile directory,
  58                                            IndexingContext context);
  59
  60     public abstract String getParentDirectoryUrl(IndexingContext context);
  61
  62     public abstract String getThumbnailUrl(Picture picture,
  63                                            final Dimension desiredDimension, IndexingContext context);
  64
  65     public static String getVideoType(String fileExtension) {
  66         switch (fileExtension){
  67             case "ogv":
  68                 return "video/ogg";
  69             case "webm":
  70                 return "video/webm";
  71             case "mp4":
  72                 return "video/mp4";
  73             default:
  74                 return null;
  75         }
  76     }
  77
  78     public boolean isVideo(String fileExtension){
  79         return getVideoType(fileExtension) != null;
  80     }
  81 }