X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=org.argeo.enterprise%2Fsrc%2Forg%2Fargeo%2Futil%2FDirH.java;fp=org.argeo.enterprise%2Fsrc%2Forg%2Fargeo%2Futil%2FDirH.java;h=0000000000000000000000000000000000000000;hb=9f729eeb8255a9d800ad2506735dda8cc215a135;hp=b6d962f068fa6c4ca711498b44c4922b65732369;hpb=f9efbe5228615951dd8482a4582aa24e00c10ce5;p=lgpl%2Fargeo-commons.git

diff --git a/org.argeo.enterprise/src/org/argeo/util/DirH.java b/org.argeo.enterprise/src/org/argeo/util/DirH.java
deleted file mode 100644
index b6d962f06..000000000
--- a/org.argeo.enterprise/src/org/argeo/util/DirH.java
+++ /dev/null
@@ -1,116 +0,0 @@
-package org.argeo.util;
-
-import java.io.IOException;
-import java.io.PrintStream;
-import java.nio.charset.Charset;
-import java.nio.file.DirectoryStream;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-
-/** Hashes the hashes of the files in a directory. */
-public class DirH {
-
-	private final static Charset charset = Charset.forName("UTF-16");
-	private final static long bufferSize = 200 * 1024 * 1024;
-	private final static String algorithm = "SHA";
-
-	private final static byte EOL = (byte) '\n';
-	private final static byte SPACE = (byte) ' ';
-
-	private final int hashSize;
-
-	private final byte[][] hashes;
-	private final byte[][] fileNames;
-	private final byte[] digest;
-	private final byte[] dirName;
-
-	/**
-	 * @param dirName can be null or empty
-	 */
-	private DirH(byte[][] hashes, byte[][] fileNames, byte[] dirName) {
-		if (hashes.length != fileNames.length)
-			throw new IllegalArgumentException(hashes.length + " hashes and " + fileNames.length + " file names");
-		this.hashes = hashes;
-		this.fileNames = fileNames;
-		this.dirName = dirName == null ? new byte[0] : dirName;
-		if (hashes.length == 0) {// empty dir
-			hashSize = 20;
-			// FIXME what is the digest of an empty dir?
-			digest = new byte[hashSize];
-			Arrays.fill(digest, SPACE);
-			return;
-		}
-		hashSize = hashes[0].length;
-		for (int i = 0; i < hashes.length; i++) {
-			if (hashes[i].length != hashSize)
-				throw new IllegalArgumentException(
-						"Hash size for " + new String(fileNames[i], charset) + " is " + hashes[i].length);
-		}
-
-		try {
-			MessageDigest md = MessageDigest.getInstance(algorithm);
-			for (int i = 0; i < hashes.length; i++) {
-				md.update(this.hashes[i]);
-				md.update(SPACE);
-				md.update(this.fileNames[i]);
-				md.update(EOL);
-			}
-			digest = md.digest();
-		} catch (NoSuchAlgorithmException e) {
-			throw new IllegalArgumentException("Cannot digest", e);
-		}
-	}
-
-	public void print(PrintStream out) {
-		out.print(DigestUtils.encodeHexString(digest));
-		if (dirName.length > 0) {
-			out.print(' ');
-			out.print(new String(dirName, charset));
-		}
-		out.print('\n');
-		for (int i = 0; i < hashes.length; i++) {
-			out.print(DigestUtils.encodeHexString(hashes[i]));
-			out.print(' ');
-			out.print(new String(fileNames[i], charset));
-			out.print('\n');
-		}
-	}
-
-	public static DirH digest(Path dir) {
-		try (DirectoryStream<Path> files = Files.newDirectoryStream(dir)) {
-			List<byte[]> hs = new ArrayList<byte[]>();
-			List<String> fNames = new ArrayList<>();
-			for (Path file : files) {
-				if (!Files.isDirectory(file)) {
-					byte[] digest = DigestUtils.digestRaw(algorithm, file, bufferSize);
-					hs.add(digest);
-					fNames.add(file.getFileName().toString());
-				}
-			}
-
-			byte[][] fileNames = new byte[fNames.size()][];
-			for (int i = 0; i < fNames.size(); i++) {
-				fileNames[i] = fNames.get(i).getBytes(charset);
-			}
-			byte[][] hashes = hs.toArray(new byte[hs.size()][]);
-			return new DirH(hashes, fileNames, dir.toString().getBytes(charset));
-		} catch (IOException e) {
-			throw new RuntimeException("Cannot digest " + dir, e);
-		}
-	}
-
-	public static void main(String[] args) {
-		try {
-			DirH dirH = DirH.digest(Paths.get("/home/mbaudier/tmp/"));
-			dirH.print(System.out);
-		} catch (Exception e) {
-			e.printStackTrace();
-		}
-	}
-}