/*
* Meviz - Various tools collection to work with multimedia.
- * Copyright (C) 2012, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
- *
+ * 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 2 of the GNU General Public License
- * as published by the Free Software Foundation.
- */
+ * 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.meviz.htmlindexer.layouts.Layout;
+import eu.svjatoslav.meviz.htmlindexer.layouts.MixedLayout;
+
import java.awt.image.BufferedImage;
+import java.io.BufferedReader;
import java.io.File;
+import java.io.FileReader;
import java.io.IOException;
+import java.util.HashSet;
import java.util.zip.CRC32;
-import javax.imageio.ImageIO;
+import static javax.imageio.ImageIO.read;
public class Utils {
-
private static File lastLoadedFile;
-
private static BufferedImage lastLoadedBufferedImage;
/**
* Load image into {@link BufferedImage} and return it. Caches last loaded
* image to speed up subsequent loading attempts.
- *
+ *
* @throws ImageFormatError
* @throws IOException
*/
- public static BufferedImage getBufferedImage(final File file) throws ImageFormatError, IOException {
- if (file.equals(lastLoadedFile)) {
+ public static BufferedImage getBufferedImage(final File file)
+ throws ImageFormatError, IOException {
+ if (file.equals(lastLoadedFile))
return lastLoadedBufferedImage;
- }
System.out.println("Loading image: " + file.getPath());
- lastLoadedBufferedImage = ImageIO.read(file);
+ lastLoadedBufferedImage = read(file);
lastLoadedFile = file;
- if (lastLoadedBufferedImage == null)
- throw new ImageFormatError("File: " + file + " is not a valid image.");
+ if (lastLoadedBufferedImage == null) {
+ System.out.println("Error reading image: " + file);
+ throw new ImageFormatError("File: " + file
+ + " is not a valid image.");
+
+ }
return lastLoadedBufferedImage;
}
+ public static File getLayoutIndexFile(final Layout layout,
+ final File directoryToIndex) {
+
+ final String indexFilePath = directoryToIndex.getAbsolutePath()
+ + "/index" + layout.getFileNameSuffix() + ".html";
+
+ return new File(indexFilePath);
+ }
+
+ public static HashSet<Layout> getLayouts() {
+ final HashSet<Layout> layouts = new HashSet<>();
+ layouts.add(new MixedLayout());
+ return layouts;
+ }
+
public static String getStringCrcAsHex(final String input) {
// create a new CRC-calculating object
// loop, calculating CRC for each byte of the string
// There is no CRC16.update(byte[]) method.
- for (final byte b : input.getBytes()) {
+ for (final byte b : input.getBytes())
crc.update(b);
- }
// note use crc.value, not crc.getValue()
- final String hex = Integer.toHexString((int) crc.getValue()).toUpperCase();
- // System.out.println("Input string: " + input);
- // System.out.println("Result: " + hex);
+ return Integer.toHexString((int) crc.getValue())
+ .toUpperCase();
+ }
+
+ public static File getThumbnailsDirectory(final File directoryToIndex) {
+ return new File(getThumbnailsDirectoryPath(directoryToIndex));
+ }
+
+ public static String getThumbnailsDirectoryPath(final File directoryToIndex) {
+ return directoryToIndex.getAbsolutePath() + "/"
+ + Constants.THUMBNAILS_DIRECTORY_NAME + "/";
+ }
+
+ public static boolean isMevizGeneratedIndexFile(final File indexFile)
+ throws IOException {
+
+ boolean isMevizFile = false;
+
+ final FileReader fileReader = new FileReader(indexFile);
+ final BufferedReader reader = new BufferedReader(fileReader);
- return hex;
+ parseFile:
+ {
+ while (true) {
+ final String line = reader.readLine();
+
+ if (line == null)
+ break parseFile;
+
+ if (line.contains(Constants.HTML_MAGIC_STRING)) {
+ isMevizFile = true;
+ break parseFile;
+ }
+ }
+ }
+
+ reader.close();
+ fileReader.close();
+ return isMevizFile;
}
+ /**
+ * TODO: URL path component is encoded differently from URL query parameter.
+ * Also some URL encoding might work for HTML on local filesystem, while other
+ * stuff works for web. Things must be cleared up here. Currently they are mixed and
+ * hacked together.
+ */
+ public static String urlEncode(String string) {
+ if (string.startsWith("./"))
+ string = string.substring(2);
+
+ // TODO: get rid of UrlParamEncoder.
+ return UrlParamEncoder.encode(string);
+ //
+// try {
+// return URLEncoder.encode(string, UTF_8).replace("+", "%20");
+// } catch (UnsupportedEncodingException e) {
+// throw new RuntimeException(e);
+// }
+ }
}