+++ /dev/null
-/*
- * Meviz - Various tools collection to work with multimedia.
- * Copyright (C) 2012 -- 2019, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 3 of the GNU Lesser General Public License
- * or later as published by the Free Software Foundation.
-*/
-
-package eu.svjatoslav.meviz.htmlindexer;
-
-import eu.svjatoslav.commons.file.IOHelper;
-import eu.svjatoslav.meviz.htmlindexer.metadata.Dimension;
-import eu.svjatoslav.meviz.htmlindexer.metadata.DirectoryMetadata;
-import eu.svjatoslav.meviz.htmlindexer.metadata.MetadadaHelper;
-import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.AbstractFile;
-import eu.svjatoslav.meviz.htmlindexer.metadata.fileTypes.Picture;
-import org.apache.log4j.Logger;
-
-import java.io.File;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.HashSet;
-import java.util.List;
-
-/**
- * Main class of HTML indexer.
- */
-
-public class FilesystemIndexer extends AbstractIndexer {
-
- private static final Logger logger = Logger
- .getLogger(FilesystemIndexer.class);
-
- private final HashSet<String> validMetadataFiles = new HashSet<>();
-
- private final File directoryToIndex;
- private final List<String> pathElements;
- private final CommandlineHandler commandlineHandler;
- private File metadataFile;
- private DirectoryMetadata metadata;
- private HashSet<Layout> layouts;
-
- public FilesystemIndexer(final File directoryToIndex,
- final CommandlineHandler commandlineHandler,
- final List<String> pathElements) throws Exception {
-
- this.directoryToIndex = directoryToIndex;
- this.commandlineHandler = commandlineHandler;
- this.pathElements = pathElements;
-
- if (!directoryToIndex.canRead())
- return;
-
- validMetadataFiles.add(Constants.METADATA_FILE_NAME);
-
- initializeThumbnailsDirectory();
- loadOrCreateMetadata();
-
- initializeLayouts();
-
- updateMetadata();
-
- metadata.removeUnusedMetadataEntries();
-
- generateHtmlFromMetadata(layouts);
-
- removeUnusedThumbnailFiles();
-
- // save directory metadata
- if (metadata.changed)
- MetadadaHelper.saveDirectoryMetadata(metadataFile, metadata);
-
- }
-
- private boolean canWriteIndexFile(final File indexFile)
- throws IOException {
-
- return !indexFile.exists() || Utils.isMevizGeneratedIndexFile(indexFile);
-
- }
-
- private void generateHtmlFromMetadata(final HashSet<Layout> layouts) {
- // Generate HTML from metadata
- for (final Layout layout : layouts)
- try {
- final File indexFile = Utils.getLayoutIndexFile(layout,
- directoryToIndex);
-
- if (canWriteIndexFile(indexFile)) {
-
- compileHtml(layout, metadata);
-
- IOHelper.overwriteFileIfContentDiffers(indexFile, layout
- .getHtml(true, true, metadata).getBytes());
- }
- } catch (final Exception e) {
- logger.error("Error writing index file. ", e);
- }
- }
-
- private List<String> getChildPath(final File file) {
-
- final List<String> result = new ArrayList<>();
- result.addAll(pathElements);
- result.add(file.getName());
-
- return result;
- }
-
- @Override
- public String getDirectoryUrl(final AbstractFile directory,
- final IndexingContext context) {
- return Utils.urlEncode(directory.fileName) + "/index.html";
- }
-
- @Override
- public String getParentDirectoryUrl(final IndexingContext context) {
- return "../index.html";
- }
-
- @Override
- public String getThumbnailUrl(final Picture picture,
- final Dimension desiredDimension, final IndexingContext context) {
-
- // in case thumbnail size was equal to original, then return original
- // file path
- if (picture.getDimensions().equals(desiredDimension))
- return picture.fileName;
-
- final String thumbnailFileName = picture
- .getRelativeThumbnailFileName(desiredDimension);
-
- validMetadataFiles.add(thumbnailFileName);
- final File thumbnailFile = new File(
- Utils.getThumbnailsDirectoryPath(directoryToIndex)
- + thumbnailFileName);
-
- if (!thumbnailFile.exists()) {
-
- final File originalFile = new File(
- directoryToIndex.getAbsolutePath() + "/" + picture.fileName);
-
- // generate new thumbnail
- Picture.makeThumbnail(originalFile, thumbnailFile,
- desiredDimension.getAwtDimension());
- }
- return Constants.THUMBNAILS_DIRECTORY_NAME + "/"
- + Utils.urlEncode(thumbnailFileName);
- }
-
- private void initializeLayouts() {
-
- layouts = Utils.getLayouts();
-
- final String galleryTitle = commandlineHandler.getGalleryTitle();
-
- for (final Layout layout : layouts)
- layout.init(galleryTitle, pathElements, this, new IndexingContext(
- "", "."));
- }
-
- private void initializeThumbnailsDirectory() {
- final File thumbnailsDirectory = Utils
- .getThumbnailsDirectory(directoryToIndex);
-
- if (!thumbnailsDirectory.exists())
- thumbnailsDirectory.mkdirs();
- }
-
- private void loadOrCreateMetadata() {
-
- metadataFile = new File(
- Utils.getThumbnailsDirectoryPath(directoryToIndex)
- + Constants.METADATA_FILE_NAME);
-
- metadata = MetadadaHelper.initDirectoryMetadata(metadataFile);
- }
-
- private void removeUnusedThumbnailFiles() {
-
- for (final File file : Utils.getThumbnailsDirectory(directoryToIndex)
- .listFiles())
- if (!validMetadataFiles.contains(file.getName()))
- file.delete();
-
- }
-
- private void updateMetadata() throws Exception {
-
- for (final File file : directoryToIndex.listFiles())
- if (shallFileBeIndexed(file)) {
-
- metadata.ensureFileMetadataIsUpToDate(directoryToIndex, file);
-
- if (file.isDirectory())
- new FilesystemIndexer(file, commandlineHandler,
- getChildPath(file));
- }
- }
-}
projects / meviz.git / blobdiff