Use bulk IInArchive.extract() for ~8x faster extraction, fix archive item resolution
- Replace extractSlow() per-item extraction with IInArchive.extract() bulk API in 7-Zip-JBinding. Solid RAR archives no longer re-decode from the beginning for each item, bringing extraction speed close to native WinRAR/7z.exe (~375 MB/s instead of ~43 MB/s). - Add BulkExtractCallback implementing both IArchiveExtractCallback and ICryptoGetTextPassword for proper password handling during bulk extraction. - Fix resolveArchiveItemsFromList with multi-level fallback matching: 1. Pattern match (multipart RAR, split ZIP/7z, generic splits) 2. Exact filename match (case-insensitive) 3. Stem-based fuzzy match (handles debrid service filename modifications) 4. Single-item archive fallback - Simplify caching from Set+Array workaround back to simple Map<string, T> (the original "caching failure" was caused by resolveArchiveItemsFromList returning empty arrays, not by Map/Set/Object data structure bugs). - Add comprehensive tests for archive item resolution (14 test cases) and JVM extraction progress callbacks (2 test cases). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Sucukdeluxe
co-authored by
Claude Opus 4.6
Claude Opus 4.6
parent
d9a78ea837
commit
51a01ea03f
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@@ -3,7 +3,9 @@ package com.sucukdeluxe.extractor;
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import net.lingala.zip4j.ZipFile;
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import net.lingala.zip4j.exception.ZipException;
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import net.lingala.zip4j.model.FileHeader;
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import net.sf.sevenzipjbinding.ExtractAskMode;
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import net.sf.sevenzipjbinding.ExtractOperationResult;
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import net.sf.sevenzipjbinding.IArchiveExtractCallback;
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import net.sf.sevenzipjbinding.IArchiveOpenCallback;
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import net.sf.sevenzipjbinding.IArchiveOpenVolumeCallback;
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import net.sf.sevenzipjbinding.IInArchive;
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@@ -360,110 +362,99 @@ public final class JBindExtractorMain {
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try {
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context = openSevenZipArchive(request.archiveFile, password);
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IInArchive archive = context.archive;
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ISimpleInArchive simple = archive.getSimpleInterface();
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ISimpleInArchiveItem[] items = simple.getArchiveItems();
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if (items == null) {
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int itemCount = archive.getNumberOfItems();
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if (itemCount <= 0) {
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throw new IOException("Archiv enthalt keine Eintrage oder konnte nicht gelesen werden: " + request.archiveFile.getAbsolutePath());
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}
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// Pre-scan: collect file indices, sizes, output paths, and detect encryption
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long totalUnits = 0;
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boolean encrypted = false;
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for (ISimpleInArchiveItem item : items) {
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if (item == null || item.isFolder()) {
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continue;
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}
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try {
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encrypted = encrypted || item.isEncrypted();
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} catch (Throwable ignored) {
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// ignore encrypted flag read issues
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}
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totalUnits += safeSize(item.getSize());
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}
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ProgressTracker progress = new ProgressTracker(totalUnits);
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progress.emitStart();
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List<Integer> fileIndices = new ArrayList<Integer>();
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List<File> outputFiles = new ArrayList<File>();
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List<Long> fileSizes = new ArrayList<Long>();
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Set<String> reserved = new HashSet<String>();
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for (ISimpleInArchiveItem item : items) {
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if (item == null) {
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continue;
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}
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String entryName = normalizeEntryName(item.getPath(), "item-" + item.getItemIndex());
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if (item.isFolder()) {
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for (int i = 0; i < itemCount; i++) {
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Boolean isFolder = (Boolean) archive.getProperty(i, PropID.IS_FOLDER);
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String entryPath = (String) archive.getProperty(i, PropID.PATH);
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String entryName = normalizeEntryName(entryPath, "item-" + i);
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if (Boolean.TRUE.equals(isFolder)) {
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File dir = resolveDirectory(request.targetDir, entryName);
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ensureDirectory(dir);
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reserved.add(pathKey(dir));
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continue;
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}
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long itemUnits = safeSize(item.getSize());
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File output = resolveOutputFile(request.targetDir, entryName, request.conflictMode, reserved);
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if (output == null) {
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progress.advance(itemUnits);
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continue;
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}
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ensureDirectory(output.getParentFile());
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rejectSymlink(output);
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final FileOutputStream out = new FileOutputStream(output);
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final long[] remaining = new long[] { itemUnits };
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boolean extractionSuccess = false;
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try {
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ExtractOperationResult result = item.extractSlow(new ISequentialOutStream() {
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@Override
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public int write(byte[] data) throws SevenZipException {
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if (data == null || data.length == 0) {
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return 0;
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}
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try {
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out.write(data);
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} catch (IOException error) {
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throw new SevenZipException("Fehler beim Schreiben: " + error.getMessage(), error);
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}
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long accounted = Math.min(remaining[0], (long) data.length);
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remaining[0] -= accounted;
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progress.advance(accounted);
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return data.length;
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}
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}, password == null ? "" : password);
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if (remaining[0] > 0) {
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progress.advance(remaining[0]);
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}
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if (result != ExtractOperationResult.OK) {
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if (isPasswordFailure(result, encrypted)) {
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throw new WrongPasswordException(new IOException("Falsches Passwort"));
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}
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throw new IOException("7z-Fehler: " + result.name());
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}
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extractionSuccess = true;
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} catch (SevenZipException error) {
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if (looksLikeWrongPassword(error, encrypted)) {
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throw new WrongPasswordException(error);
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}
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throw error;
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} finally {
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try {
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out.close();
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} catch (Throwable ignored) {
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}
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if (!extractionSuccess && output.exists()) {
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try {
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output.delete();
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} catch (Throwable ignored) {
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}
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}
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}
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try {
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java.util.Date modified = item.getLastWriteTime();
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if (modified != null) {
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output.setLastModified(modified.getTime());
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}
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Boolean isEncrypted = (Boolean) archive.getProperty(i, PropID.ENCRYPTED);
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encrypted = encrypted || Boolean.TRUE.equals(isEncrypted);
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} catch (Throwable ignored) {
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// best effort
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// ignore encrypted flag read issues
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}
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Long rawSize = (Long) archive.getProperty(i, PropID.SIZE);
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long itemSize = safeSize(rawSize);
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totalUnits += itemSize;
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File output = resolveOutputFile(request.targetDir, entryName, request.conflictMode, reserved);
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fileIndices.add(i);
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outputFiles.add(output); // null if skipped
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fileSizes.add(itemSize);
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}
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if (fileIndices.isEmpty()) {
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// All items are folders or skipped
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ProgressTracker progress = new ProgressTracker(1);
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progress.emitStart();
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progress.emitDone();
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return;
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}
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ProgressTracker progress = new ProgressTracker(totalUnits);
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progress.emitStart();
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// Build index array for bulk extract
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int[] indices = new int[fileIndices.size()];
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for (int i = 0; i < fileIndices.size(); i++) {
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indices[i] = fileIndices.get(i);
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}
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// Map from archive index to our position in fileIndices/outputFiles
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Map<Integer, Integer> indexToPos = new HashMap<Integer, Integer>();
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for (int i = 0; i < fileIndices.size(); i++) {
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indexToPos.put(fileIndices.get(i), i);
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}
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// Bulk extraction state
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final boolean encryptedFinal = encrypted;
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final String effectivePassword = password == null ? "" : password;
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final File[] currentOutput = new File[1];
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final FileOutputStream[] currentStream = new FileOutputStream[1];
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final boolean[] currentSuccess = new boolean[1];
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final long[] currentRemaining = new long[1];
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final Throwable[] firstError = new Throwable[1];
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final int[] currentPos = new int[] { -1 };
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try {
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archive.extract(indices, false, new BulkExtractCallback(
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archive, indexToPos, fileIndices, outputFiles, fileSizes,
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progress, encryptedFinal, effectivePassword, currentOutput,
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currentStream, currentSuccess, currentRemaining, currentPos, firstError
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));
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} catch (SevenZipException error) {
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if (looksLikeWrongPassword(error, encryptedFinal)) {
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throw new WrongPasswordException(error);
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}
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throw error;
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}
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if (firstError[0] != null) {
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if (firstError[0] instanceof WrongPasswordException) {
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throw (WrongPasswordException) firstError[0];
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}
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throw (Exception) firstError[0];
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}
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progress.emitDone();
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@@ -888,6 +879,176 @@ public final class JBindExtractorMain {
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private final List<String> passwords = new ArrayList<String>();
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}
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/**
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* Bulk extraction callback that implements both IArchiveExtractCallback and
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* ICryptoGetTextPassword. Using the bulk IInArchive.extract() API instead of
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* per-item extractSlow() is critical for performance — solid RAR archives
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* otherwise re-decode from the beginning for every single item.
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*/
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private static final class BulkExtractCallback implements IArchiveExtractCallback, ICryptoGetTextPassword {
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private final IInArchive archive;
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private final Map<Integer, Integer> indexToPos;
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private final List<Integer> fileIndices;
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private final List<File> outputFiles;
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private final List<Long> fileSizes;
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private final ProgressTracker progress;
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private final boolean encrypted;
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private final String password;
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private final File[] currentOutput;
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private final FileOutputStream[] currentStream;
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private final boolean[] currentSuccess;
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private final long[] currentRemaining;
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private final int[] currentPos;
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private final Throwable[] firstError;
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BulkExtractCallback(IInArchive archive, Map<Integer, Integer> indexToPos,
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List<Integer> fileIndices, List<File> outputFiles, List<Long> fileSizes,
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ProgressTracker progress, boolean encrypted, String password,
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File[] currentOutput, FileOutputStream[] currentStream,
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boolean[] currentSuccess, long[] currentRemaining, int[] currentPos,
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Throwable[] firstError) {
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this.archive = archive;
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this.indexToPos = indexToPos;
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this.fileIndices = fileIndices;
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this.outputFiles = outputFiles;
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this.fileSizes = fileSizes;
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this.progress = progress;
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this.encrypted = encrypted;
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this.password = password;
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this.currentOutput = currentOutput;
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this.currentStream = currentStream;
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this.currentSuccess = currentSuccess;
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this.currentRemaining = currentRemaining;
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this.currentPos = currentPos;
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this.firstError = firstError;
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}
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@Override
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public String cryptoGetTextPassword() {
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return password;
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}
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@Override
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public void setTotal(long total) {
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// 7z reports total compressed bytes; we track uncompressed via ProgressTracker
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}
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@Override
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public void setCompleted(long complete) {
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// Not used — we track per-write progress
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}
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@Override
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public ISequentialOutStream getStream(int index, ExtractAskMode extractAskMode) throws SevenZipException {
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closeCurrentStream();
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Integer pos = indexToPos.get(index);
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if (pos == null) {
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return null;
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}
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currentPos[0] = pos;
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currentOutput[0] = outputFiles.get(pos);
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currentSuccess[0] = false;
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currentRemaining[0] = fileSizes.get(pos);
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if (extractAskMode != ExtractAskMode.EXTRACT) {
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currentOutput[0] = null;
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return null;
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}
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if (currentOutput[0] == null) {
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progress.advance(currentRemaining[0]);
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return null;
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}
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try {
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ensureDirectory(currentOutput[0].getParentFile());
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rejectSymlink(currentOutput[0]);
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currentStream[0] = new FileOutputStream(currentOutput[0]);
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} catch (IOException error) {
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throw new SevenZipException("Fehler beim Erstellen: " + error.getMessage(), error);
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}
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return new ISequentialOutStream() {
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@Override
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public int write(byte[] data) throws SevenZipException {
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if (data == null || data.length == 0) {
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return 0;
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}
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try {
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currentStream[0].write(data);
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} catch (IOException error) {
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throw new SevenZipException("Fehler beim Schreiben: " + error.getMessage(), error);
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}
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long accounted = Math.min(currentRemaining[0], (long) data.length);
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currentRemaining[0] -= accounted;
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progress.advance(accounted);
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return data.length;
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}
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};
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}
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@Override
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public void prepareOperation(ExtractAskMode extractAskMode) {
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// no-op
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}
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@Override
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public void setOperationResult(ExtractOperationResult result) throws SevenZipException {
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if (currentRemaining[0] > 0) {
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progress.advance(currentRemaining[0]);
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currentRemaining[0] = 0;
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}
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if (result == ExtractOperationResult.OK) {
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currentSuccess[0] = true;
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closeCurrentStream();
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if (currentPos[0] >= 0 && currentOutput[0] != null) {
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try {
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int archiveIndex = fileIndices.get(currentPos[0]);
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java.util.Date modified = (java.util.Date) archive.getProperty(archiveIndex, PropID.LAST_MODIFICATION_TIME);
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if (modified != null) {
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currentOutput[0].setLastModified(modified.getTime());
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}
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} catch (Throwable ignored) {
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// best effort
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}
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}
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} else {
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closeCurrentStream();
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if (currentOutput[0] != null && currentOutput[0].exists()) {
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try {
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currentOutput[0].delete();
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} catch (Throwable ignored) {
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}
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}
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if (firstError[0] == null) {
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if (isPasswordFailure(result, encrypted)) {
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firstError[0] = new WrongPasswordException(new IOException("Falsches Passwort"));
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} else {
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firstError[0] = new IOException("7z-Fehler: " + result.name());
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}
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}
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}
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}
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private void closeCurrentStream() {
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if (currentStream[0] != null) {
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try {
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currentStream[0].close();
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} catch (Throwable ignored) {
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}
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currentStream[0] = null;
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}
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if (!currentSuccess[0] && currentOutput[0] != null && currentOutput[0].exists()) {
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try {
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currentOutput[0].delete();
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} catch (Throwable ignored) {
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}
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}
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}
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}
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private static final class WrongPasswordException extends Exception {
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private static final long serialVersionUID = 1L;
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Reference in New Issue
Block a user