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

   1 package eu.svjatoslav.meviz.htmlindexer;
   2
   3 import java.io.BufferedInputStream;
   4 import java.io.IOException;
   5 import java.io.ObjectInputStream;
   6 import java.net.MalformedURLException;
   7 import java.net.URL;
   8 import java.util.List;
   9
  10 import eu.svjatoslav.commons.network.UrlParamEncoder;
  11 import eu.svjatoslav.meviz.htmlindexer.layouts.MixedLayout;
  12 import eu.svjatoslav.meviz.htmlindexer.metadata.Dimension;
  13 import eu.svjatoslav.meviz.htmlindexer.metadata.DirectoryMetadata;
  14 import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.AbstractFile;
  15 import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.Picture;
  16
  17 public class WebIndexer extends AbstractIndexer {
  18
  19         private final String globalPrefix;
  20
  21         public WebIndexer(final String globalPrefix) {
  22                 this.globalPrefix = globalPrefix;
  23         }
  24
  25         @Override
  26         public String getDirectoryUrl(final AbstractFile directory,
  27                         final IndexingContext context) {
  28                 return "photos.jsp?path=" + context.getLocalUrl() + "/"
  29                                 + UrlParamEncoder.encode(directory.fileName);
  30         }
  31
  32         public String getHtml(String requestPath) throws MalformedURLException,
  33                         IOException, ClassNotFoundException {
  34
  35                 if (requestPath.equals("/"))
  36                         requestPath = "";
  37
  38                 final MixedLayout layout = new MixedLayout();
  39                 final IndexingContext context = new IndexingContext(globalPrefix,
  40                                 requestPath);
  41                 layout.init("Photos", context.getLocalPathComponents(), this, context);
  42
  43                 final DirectoryMetadata metadata = getMetadataForPath(requestPath);
  44
  45                 compileHtml(layout, metadata);
  46
  47                 return layout.getHtml(false, false);
  48         }
  49
  50         public DirectoryMetadata getMetadataForPath(final String requestPath)
  51                         throws IOException, MalformedURLException, ClassNotFoundException {
  52
  53                 final StringBuffer urlStringBuffer = new StringBuffer();
  54
  55                 urlStringBuffer.append(globalPrefix);
  56                 urlStringBuffer.append(UrlParamEncoder.encode(requestPath));
  57                 urlStringBuffer.append("/.thumbnails/metadata_6.dat");
  58
  59                 final String urlString = urlStringBuffer.toString();
  60
  61                 final BufferedInputStream in = new BufferedInputStream(new URL(
  62                                 urlString).openStream());
  63
  64                 final ObjectInputStream oin = new ObjectInputStream(in);
  65                 final DirectoryMetadata directory = (DirectoryMetadata) oin
  66                                 .readObject();
  67                 in.close();
  68
  69                 return directory;
  70         }
  71
  72         @Override
  73         public String getParentDirectoryUrl(final IndexingContext context) {
  74                 final StringBuffer result = new StringBuffer();
  75
  76                 result.append("photos.jsp?path=");
  77
  78                 final List<String> components = context.getLocalPathComponents();
  79
  80                 for (final String pathComponent : components.subList(0,
  81                                 components.size() - 1)) {
  82                         result.append("/");
  83                         result.append(pathComponent);
  84                 }
  85
  86                 return result.toString();
  87         }
  88
  89         @Override
  90         public String getThumbnailUrl(final Picture picture,
  91                         final Dimension desiredDimension, final IndexingContext context) {
  92
  93                 // in case thumbnail size was equal to original, then return original
  94                 // file path
  95                 if (picture.getDimensions().equals(desiredDimension))
  96                         return context.getGlobalUrl() + context.getLocalUrl() + "/"
  97                                         + picture.fileName;
  98
  99                 final String thumbnailFileName = picture
 100                                 .getRelativeThumbnailFileName(desiredDimension);
 101
 102                 return context.getGlobalUrl() + context.getLocalUrl() + "/"
 103                                 + Constants.THUMBNAILS_DIRECTORY_NAME + "/"
 104                                 + UrlParamEncoder.encode(thumbnailFileName);
 105         }
 106
 107 }