src/be/nikiroo/fanfix/library/LocalLibrary.java

   1 package be.nikiroo.fanfix.library;
   2
   3 import java.io.File;
   4 import java.io.FileFilter;
   5 import java.io.FileInputStream;
   6 import java.io.IOException;
   7 import java.io.InputStream;
   8 import java.util.ArrayList;
   9 import java.util.HashMap;
  10 import java.util.List;
  11 import java.util.Map;
  12
  13 import be.nikiroo.fanfix.Instance;
  14 import be.nikiroo.fanfix.bundles.Config;
  15 import be.nikiroo.fanfix.data.MetaData;
  16 import be.nikiroo.fanfix.data.Story;
  17 import be.nikiroo.fanfix.output.BasicOutput;
  18 import be.nikiroo.fanfix.output.BasicOutput.OutputType;
  19 import be.nikiroo.fanfix.output.InfoCover;
  20 import be.nikiroo.fanfix.supported.InfoReader;
  21 import be.nikiroo.utils.IOUtils;
  22 import be.nikiroo.utils.Image;
  23 import be.nikiroo.utils.Progress;
  24
  25 /**
  26  * This {@link BasicLibrary} will store the stories locally on disk.
  27  *
  28  * @author niki
  29  */
  30 public class LocalLibrary extends BasicLibrary {
  31         private int lastId;
  32         private Map<MetaData, File[]> stories; // Files: [ infoFile, TargetFile ]
  33         private Map<String, Image> sourceCovers;
  34
  35         private File baseDir;
  36         private OutputType text;
  37         private OutputType image;
  38
  39         /**
  40          * Create a new {@link LocalLibrary} with the given back-end directory.
  41          *
  42          * @param baseDir
  43          *            the directory where to find the {@link Story} objects
  44          */
  45         public LocalLibrary(File baseDir) {
  46                 this(baseDir, Instance.getConfig().getString(
  47                                 Config.NON_IMAGES_DOCUMENT_TYPE), Instance.getConfig()
  48                                 .getString(Config.IMAGES_DOCUMENT_TYPE), false);
  49         }
  50
  51         /**
  52          * Create a new {@link LocalLibrary} with the given back-end directory.
  53          *
  54          * @param baseDir
  55          *            the directory where to find the {@link Story} objects
  56          * @param text
  57          *            the {@link OutputType} to use for non-image documents
  58          * @param image
  59          *            the {@link OutputType} to use for image documents
  60          * @param defaultIsHtml
  61          *            if the given text or image is invalid, use HTML by default (if
  62          *            not, it will be INFO_TEXT/CBZ by default)
  63          */
  64         public LocalLibrary(File baseDir, String text, String image,
  65                         boolean defaultIsHtml) {
  66                 this(baseDir, OutputType.valueOfAllOkUC(text,
  67                                 defaultIsHtml ? OutputType.HTML : OutputType.INFO_TEXT),
  68                                 OutputType.valueOfAllOkUC(image,
  69                                                 defaultIsHtml ? OutputType.HTML : OutputType.CBZ));
  70         }
  71
  72         /**
  73          * Create a new {@link LocalLibrary} with the given back-end directory.
  74          *
  75          * @param baseDir
  76          *            the directory where to find the {@link Story} objects
  77          * @param text
  78          *            the {@link OutputType} to use for non-image documents
  79          * @param image
  80          *            the {@link OutputType} to use for image documents
  81          */
  82         public LocalLibrary(File baseDir, OutputType text, OutputType image) {
  83                 this.baseDir = baseDir;
  84                 this.text = text;
  85                 this.image = image;
  86
  87                 this.lastId = 0;
  88                 this.stories = null;
  89                 this.sourceCovers = new HashMap<String, Image>();
  90
  91                 baseDir.mkdirs();
  92         }
  93
  94         @Override
  95         protected List<MetaData> getMetas(Progress pg) {
  96                 return new ArrayList<MetaData>(getStories(pg).keySet());
  97         }
  98
  99         @Override
 100         public File getFile(String luid, Progress pg) {
 101                 File[] files = getStories(pg).get(getInfo(luid));
 102                 if (files != null) {
 103                         return files[1];
 104                 }
 105
 106                 return null;
 107         }
 108
 109         @Override
 110         public Image getCover(String luid) {
 111                 MetaData meta = getInfo(luid);
 112                 if (meta != null) {
 113                         File[] files = getStories(null).get(meta);
 114                         if (files != null) {
 115                                 File infoFile = files[0];
 116
 117                                 try {
 118                                         meta = InfoReader.readMeta(infoFile, true);
 119                                         return meta.getCover();
 120                                 } catch (IOException e) {
 121                                         Instance.getTraceHandler().error(e);
 122                                 }
 123                         }
 124                 }
 125
 126                 return null;
 127         }
 128
 129         @Override
 130         protected synchronized void invalidateInfo(String luid) {
 131                 stories = null;
 132                 sourceCovers = new HashMap<String, Image>();
 133         }
 134
 135         @Override
 136         protected synchronized int getNextId() {
 137                 getStories(null); // make sure lastId is set
 138                 return ++lastId;
 139         }
 140
 141         @Override
 142         protected void doDelete(String luid) throws IOException {
 143                 for (File file : getRelatedFiles(luid)) {
 144                         // TODO: throw an IOException if we cannot delete the files?
 145                         IOUtils.deltree(file);
 146                         file.getParentFile().delete();
 147                 }
 148         }
 149
 150         @Override
 151         protected Story doSave(Story story, Progress pg) throws IOException {
 152                 MetaData meta = story.getMeta();
 153
 154                 File expectedTarget = getExpectedFile(meta);
 155                 expectedTarget.getParentFile().mkdirs();
 156
 157                 BasicOutput it = BasicOutput.getOutput(getOutputType(meta), true, true);
 158                 it.process(story, expectedTarget.getPath(), pg);
 159
 160                 return story;
 161         }
 162
 163         @Override
 164         protected synchronized void saveMeta(MetaData meta, Progress pg)
 165                         throws IOException {
 166                 File newDir = getExpectedDir(meta.getSource());
 167                 if (!newDir.exists()) {
 168                         newDir.mkdir();
 169                 }
 170
 171                 List<File> relatedFiles = getRelatedFiles(meta.getLuid());
 172                 for (File relatedFile : relatedFiles) {
 173                         // TODO: this is not safe at all.
 174                         // We should copy all the files THEN delete them
 175                         // Maybe also adding some rollback cleanup if possible
 176                         if (relatedFile.getName().endsWith(".info")) {
 177                                 try {
 178                                         String name = relatedFile.getName().replaceFirst(
 179                                                         "\\.info$", "");
 180                                         InfoCover.writeInfo(newDir, name, meta);
 181                                         relatedFile.delete();
 182                                         relatedFile.getParentFile().delete();
 183                                 } catch (IOException e) {
 184                                         Instance.getTraceHandler().error(e);
 185                                 }
 186                         } else {
 187                                 relatedFile.renameTo(new File(newDir, relatedFile.getName()));
 188                                 relatedFile.getParentFile().delete();
 189                         }
 190                 }
 191
 192                 invalidateInfo();
 193         }
 194
 195         @Override
 196         public Image getSourceCover(String source) {
 197                 if (!sourceCovers.containsKey(source)) {
 198                         sourceCovers.put(source, super.getSourceCover(source));
 199                 }
 200
 201                 return sourceCovers.get(source);
 202         }
 203
 204         @Override
 205         public void setSourceCover(String source, String luid) {
 206                 sourceCovers.put(source, getCover(luid));
 207                 File cover = new File(getExpectedDir(source), ".cover");
 208                 try {
 209                         Instance.getCache().saveAsImage(sourceCovers.get(source), cover,
 210                                         true);
 211                 } catch (IOException e) {
 212                         Instance.getTraceHandler().error(e);
 213                         sourceCovers.remove(source);
 214                 }
 215         }
 216
 217         @Override
 218         public void imprt(BasicLibrary other, String luid, Progress pg)
 219                         throws IOException {
 220                 if (pg == null) {
 221                         pg = new Progress();
 222                 }
 223
 224                 // Check if we can simply copy the files instead of the whole process
 225                 if (other instanceof LocalLibrary) {
 226                         LocalLibrary otherLocalLibrary = (LocalLibrary) other;
 227
 228                         MetaData meta = otherLocalLibrary.getInfo(luid);
 229                         String expectedType = ""
 230                                         + (meta != null && meta.isImageDocument() ? image : text);
 231                         if (meta != null && meta.getType().equals(expectedType)) {
 232                                 File from = otherLocalLibrary.getExpectedDir(meta.getSource());
 233                                 File to = this.getExpectedDir(meta.getSource());
 234                                 List<File> sources = otherLocalLibrary.getRelatedFiles(luid);
 235                                 if (!sources.isEmpty()) {
 236                                         pg.setMinMax(0, sources.size());
 237                                 }
 238
 239                                 for (File source : sources) {
 240                                         File target = new File(source.getAbsolutePath().replace(
 241                                                         from.getAbsolutePath(), to.getAbsolutePath()));
 242                                         if (!source.equals(target)) {
 243                                                 target.getParentFile().mkdirs();
 244                                                 InputStream in = null;
 245                                                 try {
 246                                                         in = new FileInputStream(source);
 247                                                         IOUtils.write(in, target);
 248                                                 } catch (IOException e) {
 249                                                         if (in != null) {
 250                                                                 try {
 251                                                                         in.close();
 252                                                                 } catch (Exception ee) {
 253                                                                 }
 254                                                         }
 255
 256                                                         pg.done();
 257                                                         throw e;
 258                                                 }
 259                                         }
 260
 261                                         pg.add(1);
 262                                 }
 263
 264                                 invalidateInfo();
 265                                 pg.done();
 266                                 return;
 267                         }
 268                 }
 269
 270                 super.imprt(other, luid, pg);
 271
 272                 invalidateInfo();
 273         }
 274
 275         /**
 276          * Return the {@link OutputType} for this {@link Story}.
 277          *
 278          * @param meta
 279          *            the {@link Story} {@link MetaData}
 280          *
 281          * @return the type
 282          */
 283         private OutputType getOutputType(MetaData meta) {
 284                 if (meta != null && meta.isImageDocument()) {
 285                         return image;
 286                 }
 287
 288                 return text;
 289         }
 290
 291         /**
 292          * Get the target {@link File} related to the given <tt>.info</tt>
 293          * {@link File} and {@link MetaData}.
 294          *
 295          * @param meta
 296          *            the meta
 297          * @param infoFile
 298          *            the <tt>.info</tt> {@link File}
 299          *
 300          * @return the target {@link File}
 301          */
 302         private File getTargetFile(MetaData meta, File infoFile) {
 303                 // Replace .info with whatever is needed:
 304                 String path = infoFile.getPath();
 305                 path = path.substring(0, path.length() - ".info".length());
 306                 String newExt = getOutputType(meta).getDefaultExtension(true);
 307
 308                 return new File(path + newExt);
 309         }
 310
 311         /**
 312          * The target (full path) where the {@link Story} related to this
 313          * {@link MetaData} should be located on disk for a new {@link Story}.
 314          *
 315          * @param key
 316          *            the {@link Story} {@link MetaData}
 317          *
 318          * @return the target
 319          */
 320         private File getExpectedFile(MetaData key) {
 321                 String title = key.getTitle();
 322                 if (title == null) {
 323                         title = "";
 324                 }
 325                 title = title.replaceAll("[^a-zA-Z0-9._+-]", "_");
 326                 return new File(getExpectedDir(key.getSource()), key.getLuid() + "_"
 327                                 + title);
 328         }
 329
 330         /**
 331          * The directory (full path) where the new {@link Story} related to this
 332          * {@link MetaData} should be located on disk.
 333          *
 334          * @param source
 335          *            the type (source)
 336          *
 337          * @return the target directory
 338          */
 339         private File getExpectedDir(String source) {
 340                 String sanitizedSource = source.replaceAll("[^a-zA-Z0-9._+-]", "_");
 341                 return new File(baseDir, sanitizedSource);
 342         }
 343
 344         /**
 345          * Return the list of files/directories on disk for this {@link Story}.
 346          * <p>
 347          * If the {@link Story} is not found, and empty list is returned.
 348          *
 349          * @param luid
 350          *            the {@link Story} LUID
 351          *
 352          * @return the list of {@link File}s
 353          *
 354          * @throws IOException
 355          *             if the {@link Story} was not found
 356          */
 357         private List<File> getRelatedFiles(String luid) throws IOException {
 358                 List<File> files = new ArrayList<File>();
 359
 360                 MetaData meta = getInfo(luid);
 361                 if (meta == null) {
 362                         throw new IOException("Story not found: " + luid);
 363                 }
 364
 365                 File infoFile = getStories(null).get(meta)[0];
 366                 File targetFile = getStories(null).get(meta)[1];
 367
 368                 files.add(infoFile);
 369                 files.add(targetFile);
 370
 371                 String readerExt = getOutputType(meta).getDefaultExtension(true);
 372                 String fileExt = getOutputType(meta).getDefaultExtension(false);
 373
 374                 String path = targetFile.getAbsolutePath();
 375                 if (readerExt != null && !readerExt.equals(fileExt)) {
 376                         path = path.substring(0, path.length() - readerExt.length())
 377                                         + fileExt;
 378                         File relatedFile = new File(path);
 379
 380                         if (relatedFile.exists()) {
 381                                 files.add(relatedFile);
 382                         }
 383                 }
 384
 385                 String coverExt = "."
 386                                 + Instance.getConfig().getString(Config.IMAGE_FORMAT_COVER)
 387                                                 .toLowerCase();
 388                 File coverFile = new File(path + coverExt);
 389                 if (!coverFile.exists()) {
 390                         coverFile = new File(path.substring(0,
 391                                         path.length() - fileExt.length())
 392                                         + coverExt);
 393                 }
 394
 395                 if (coverFile.exists()) {
 396                         files.add(coverFile);
 397                 }
 398
 399                 return files;
 400         }
 401
 402         /**
 403          * Fill the list of stories by reading the content of the local directory
 404          * {@link LocalLibrary#baseDir}.
 405          * <p>
 406          * Will use a cached list when possible (see
 407          * {@link BasicLibrary#invalidateInfo()}).
 408          *
 409          * @param pg
 410          *            the optional {@link Progress}
 411          *
 412          * @return the list of stories
 413          */
 414         private synchronized Map<MetaData, File[]> getStories(Progress pg) {
 415                 if (pg == null) {
 416                         pg = new Progress();
 417                 } else {
 418                         pg.setMinMax(0, 100);
 419                 }
 420
 421                 if (stories == null) {
 422                         stories = new HashMap<MetaData, File[]>();
 423
 424                         lastId = 0;
 425
 426                         File[] dirs = baseDir.listFiles(new FileFilter() {
 427                                 @Override
 428                                 public boolean accept(File file) {
 429                                         return file != null && file.isDirectory();
 430                                 }
 431                         });
 432
 433                         if (dirs != null) {
 434                                 Progress pgDirs = new Progress(0, 100 * dirs.length);
 435                                 pg.addProgress(pgDirs, 100);
 436
 437                                 for (File dir : dirs) {
 438                                         File[] infoFiles = dir.listFiles(new FileFilter() {
 439                                                 @Override
 440                                                 public boolean accept(File file) {
 441                                                         return file != null
 442                                                                         && file.getPath().toLowerCase()
 443                                                                                         .endsWith(".info");
 444                                                 }
 445                                         });
 446
 447                                         Progress pgFiles = new Progress(0, infoFiles.length);
 448                                         pgDirs.addProgress(pgFiles, 100);
 449                                         pgDirs.setName("Loading from: " + dir.getName());
 450
 451                                         String source = null;
 452                                         for (File infoFile : infoFiles) {
 453                                                 pgFiles.setName(infoFile.getName());
 454                                                 try {
 455                                                         MetaData meta = InfoReader
 456                                                                         .readMeta(infoFile, false);
 457                                                         source = meta.getSource();
 458                                                         try {
 459                                                                 int id = Integer.parseInt(meta.getLuid());
 460                                                                 if (id > lastId) {
 461                                                                         lastId = id;
 462                                                                 }
 463
 464                                                                 stories.put(meta, new File[] { infoFile,
 465                                                                                 getTargetFile(meta, infoFile) });
 466                                                         } catch (Exception e) {
 467                                                                 // not normal!!
 468                                                                 throw new IOException(
 469                                                                                 "Cannot understand the LUID of "
 470                                                                                                 + infoFile + ": "
 471                                                                                                 + meta.getLuid(), e);
 472                                                         }
 473                                                 } catch (IOException e) {
 474                                                         // We should not have not-supported files in the
 475                                                         // library
 476                                                         Instance.getTraceHandler().error(
 477                                                                         new IOException(
 478                                                                                         "Cannot load file from library: "
 479                                                                                                         + infoFile, e));
 480                                                 }
 481                                                 pgFiles.add(1);
 482                                         }
 483
 484                                         File cover = new File(dir, ".cover.png");
 485                                         if (cover.exists()) {
 486                                                 try {
 487                                                         InputStream in = new FileInputStream(cover);
 488                                                         try {
 489                                                                 sourceCovers.put(source, new Image(in));
 490                                                         } finally {
 491                                                                 in.close();
 492                                                         }
 493                                                 } catch (IOException e) {
 494                                                         Instance.getTraceHandler().error(e);
 495                                                 }
 496                                         }
 497
 498                                         pgFiles.setName(null);
 499                                 }
 500
 501                                 pgDirs.setName("Loading directories");
 502                         }
 503                 }
 504
 505                 pg.done();
 506                 return stories;
 507         }
 508
 509         /**
 510          * Fix the source cover to the given story cover.
 511          *
 512          * @param source
 513          *            the source to change
 514          * @param coverImage
 515          *            the cover image
 516          */
 517         void setSourceCover(String source, Image coverImage) {
 518                 sourceCovers.put(source, coverImage);
 519                 File cover = new File(getExpectedDir(source), ".cover");
 520                 try {
 521                         Instance.getCache().saveAsImage(sourceCovers.get(source), cover,
 522                                         true);
 523                 } catch (IOException e) {
 524                         Instance.getTraceHandler().error(e);
 525                         sourceCovers.remove(source);
 526                 }
 527         }
 528 }