src/be/nikiroo/fanfix/supported/InfoReader.java

   1 package be.nikiroo.fanfix.supported;
   2
   3 import java.io.File;
   4 import java.io.FileInputStream;
   5 import java.io.FileNotFoundException;
   6 import java.io.IOException;
   7 import java.io.InputStream;
   8 import java.net.URL;
   9 import java.util.ArrayList;
  10 import java.util.List;
  11
  12 import be.nikiroo.fanfix.Instance;
  13 import be.nikiroo.fanfix.bundles.Config;
  14 import be.nikiroo.fanfix.data.MetaData;
  15 import be.nikiroo.utils.MarkableFileInputStream;
  16
  17 // not complete: no "description" tag
  18 public class InfoReader {
  19         public static MetaData readMeta(File infoFile, boolean withCover)
  20                         throws IOException {
  21                 if (infoFile == null) {
  22                         throw new IOException("File is null");
  23                 }
  24
  25                 if (infoFile.exists()) {
  26                         InputStream in = new MarkableFileInputStream(new FileInputStream(
  27                                         infoFile));
  28                         try {
  29                                 return createMeta(infoFile.toURI().toURL(), in, withCover);
  30                         } finally {
  31                                 in.close();
  32                                 in = null;
  33                         }
  34                 } else {
  35                         throw new FileNotFoundException(
  36                                         "File given as argument does not exists: "
  37                                                         + infoFile.getAbsolutePath());
  38                 }
  39         }
  40
  41         private static MetaData createMeta(URL sourceInfoFile, InputStream in,
  42                         boolean withCover) throws IOException {
  43                 MetaData meta = new MetaData();
  44
  45                 meta.setTitle(getInfoTag(in, "TITLE"));
  46                 meta.setAuthor(getInfoTag(in, "AUTHOR"));
  47                 meta.setDate(getInfoTag(in, "DATE"));
  48                 meta.setTags(getInfoTagList(in, "TAGS", ","));
  49                 meta.setSource(getInfoTag(in, "SOURCE"));
  50                 meta.setUrl(getInfoTag(in, "URL"));
  51                 meta.setPublisher(getInfoTag(in, "PUBLISHER"));
  52                 meta.setUuid(getInfoTag(in, "UUID"));
  53                 meta.setLuid(getInfoTag(in, "LUID"));
  54                 meta.setLang(getInfoTag(in, "LANG"));
  55                 meta.setSubject(getInfoTag(in, "SUBJECT"));
  56                 meta.setType(getInfoTag(in, "TYPE"));
  57                 meta.setImageDocument(getInfoTagBoolean(in, "IMAGES_DOCUMENT", false));
  58                 if (withCover) {
  59                         meta.setCover(BasicSupport.getImage(null, sourceInfoFile,
  60                                         getInfoTag(in, "COVER")));
  61                         // Second chance: try to check for a cover next to the info file
  62                         if (meta.getCover() == null) {
  63                                 String info = sourceInfoFile.getFile().toString();
  64                                 if (info.endsWith(".info")) {
  65                                         info = info.substring(0, info.length() - ".info".length());
  66                                         String ext = "."
  67                                                         + Instance.getConfig().getString(
  68                                                                         Config.IMAGE_FORMAT_COVER);
  69                                         meta.setCover(BasicSupport.getImage(null, sourceInfoFile,
  70                                                         info + ext));
  71                                 }
  72                         }
  73                 }
  74                 try {
  75                         meta.setWords(Long.parseLong(getInfoTag(in, "WORDCOUNT")));
  76                 } catch (NumberFormatException e) {
  77                         meta.setWords(0);
  78                 }
  79                 meta.setCreationDate(getInfoTag(in, "CREATION_DATE"));
  80                 meta.setFakeCover(Boolean.parseBoolean(getInfoTag(in, "FAKE_COVER")));
  81
  82                 if (withCover && meta.getCover() == null) {
  83                         meta.setCover(BasicSupport.getDefaultCover(meta.getSubject()));
  84                 }
  85
  86                 return meta;
  87         }
  88
  89         private static boolean getInfoTagBoolean(InputStream in, String key,
  90                         boolean def) throws IOException {
  91                 Boolean value = getInfoTagBoolean(in, key);
  92                 return value == null ? def : value;
  93         }
  94
  95         private static Boolean getInfoTagBoolean(InputStream in, String key)
  96                         throws IOException {
  97                 String value = getInfoTag(in, key);
  98                 if (value != null && !value.trim().isEmpty()) {
  99                         value = value.toLowerCase().trim();
 100                         return value.equals("1") || value.equals("on")
 101                                         || value.equals("true") || value.equals("yes");
 102                 }
 103
 104                 return null;
 105         }
 106
 107         private static List<String> getInfoTagList(InputStream in, String key,
 108                         String separator) throws IOException {
 109                 List<String> list = new ArrayList<String>();
 110                 String tt = getInfoTag(in, key);
 111                 if (tt != null) {
 112                         for (String tag : tt.split(separator)) {
 113                                 list.add(tag.trim());
 114                         }
 115                 }
 116
 117                 return list;
 118         }
 119
 120         /**
 121          * Return the value of the given tag in the <tt>.info</tt> file if present.
 122          *
 123          * @param key
 124          *            the tag key
 125          *
 126          * @return the value or NULL
 127          *
 128          * @throws IOException
 129          *             in case of I/O error
 130          */
 131         private static String getInfoTag(InputStream in, String key)
 132                         throws IOException {
 133                 key = "^" + key + "=";
 134
 135                 if (in != null) {
 136                         in.reset();
 137                         String value = BasicSupport.getLine(in, key, 0);
 138                         if (value != null && !value.isEmpty()) {
 139                                 value = value.trim().substring(key.length() - 1).trim();
 140                                 if (value.startsWith("'") && value.endsWith("'")
 141                                                 || value.startsWith("\"") && value.endsWith("\"")) {
 142                                         value = value.substring(1, value.length() - 1).trim();
 143                                 }
 144
 145                                 return value;
 146                         }
 147                 }
 148
 149                 return null;
 150         }
 151 }