List of usage examples for org.apache.commons.compress.archivers.zip ZipArchiveEntry getSize
public long getSize()
From source file:com.fujitsu.dc.core.bar.BarFileReadRunner.java
/** * ????????./* w w w .j a v a 2s .com*/ * @param zae * @param entryName * @param maxSize * @param doneKeys * @return ???true? */ private boolean isValidFileStructure(ZipArchiveEntry zae, String entryName, long maxSize, List<String> doneKeys) { writeOutputStream(false, CODE_BAR_INSTALL_STARTED, entryName); // ??????? if (!barFileOrder.containsKey(entryName)) { log.info("[" + entryName + "] invalid file"); String message = DcCoreMessageUtils.getMessage("PL-BI-2001"); writeOutputStream(true, "PL-BI-1004", entryName, message); return false; } // ????? Pattern formatPattern = Pattern.compile(".*/+([0-9][0-9])_.*"); Matcher formatMatcher = formatPattern.matcher(entryName); String entryIndex = formatMatcher.replaceAll("$1"); if (doneKeys.isEmpty()) { // ?????"00"????? if (!entryIndex.equals("00")) { log.info("bar/00_meta/00_manifest.json is not exsist"); String message = DcCoreMessageUtils.getMessage("PL-BI-2001"); writeOutputStream(true, "PL-BI-1004", entryName, message); return false; } } else { String lastEntryName = doneKeys.get(doneKeys.size() - 1); formatMatcher = formatPattern.matcher(lastEntryName); String lastEntryIndex = formatMatcher.replaceAll("$1"); // ?????? if (entryIndex.compareTo(lastEntryIndex) < 0) { log.info("[" + entryName + "] invalid file"); String message = DcCoreMessageUtils.getMessage("PL-BI-2001"); writeOutputStream(true, "PL-BI-1004", entryName, message); return false; } } // [400]bar/bar?????? if (zae.getSize() > (long) (maxSize * MB)) { log.info("Bar file entry size too large invalid file [" + entryName + "]"); String message = DcCoreException.BarInstall.BAR_FILE_ENTRY_SIZE_TOO_LARGE .params(zae.getName(), String.valueOf(zae.getSize())).getMessage(); writeOutputStream(true, "PL-BI-1004", entryName, message); return false; } return true; }
From source file:io.personium.core.bar.BarFileReadRunner.java
/** * ????????.// w ww . j a va2s. c o m * @param zae * @param entryName * @param maxSize * @param doneKeys * @return ???true? */ private boolean isValidFileStructure(ZipArchiveEntry zae, String entryName, long maxSize, List<String> doneKeys) { writeOutputStream(false, CODE_BAR_INSTALL_STARTED, entryName); // ??????? if (!barFileOrder.containsKey(entryName)) { log.info("[" + entryName + "] invalid file"); String message = PersoniumCoreMessageUtils.getMessage("PL-BI-2001"); writeOutputStream(true, "PL-BI-1004", entryName, message); return false; } // ????? Pattern formatPattern = Pattern.compile(".*/+([0-9][0-9])_.*"); Matcher formatMatcher = formatPattern.matcher(entryName); String entryIndex = formatMatcher.replaceAll("$1"); if (doneKeys.isEmpty()) { // ?????"00"????? if (!entryIndex.equals("00")) { log.info("bar/00_meta/00_manifest.json is not exsist"); String message = PersoniumCoreMessageUtils.getMessage("PL-BI-2001"); writeOutputStream(true, "PL-BI-1004", entryName, message); return false; } } else { String lastEntryName = doneKeys.get(doneKeys.size() - 1); formatMatcher = formatPattern.matcher(lastEntryName); String lastEntryIndex = formatMatcher.replaceAll("$1"); // ?????? if (entryIndex.compareTo(lastEntryIndex) < 0) { log.info("[" + entryName + "] invalid file"); String message = PersoniumCoreMessageUtils.getMessage("PL-BI-2001"); writeOutputStream(true, "PL-BI-1004", entryName, message); return false; } } // [400]bar/bar?????? if (zae.getSize() > (long) (maxSize * MB)) { log.info("Bar file entry size too large invalid file [" + entryName + "]"); String message = PersoniumCoreException.BarInstall.BAR_FILE_ENTRY_SIZE_TOO_LARGE .params(zae.getName(), String.valueOf(zae.getSize())).getMessage(); writeOutputStream(true, "PL-BI-1004", entryName, message); return false; } return true; }
From source file:com.android.sdklib.internal.repository.archives.ArchiveInstaller.java
/** * Unzips a zip file into the given destination directory. * * The archive file MUST have a unique "root" folder. * This root folder is skipped when unarchiving. *///from w ww . j a va 2 s . c o m @SuppressWarnings("unchecked") @VisibleForTesting(visibility = Visibility.PRIVATE) protected boolean unzipFolder(ArchiveReplacement archiveInfo, File archiveFile, File unzipDestFolder, ITaskMonitor monitor) { Archive newArchive = archiveInfo.getNewArchive(); Package pkg = newArchive.getParentPackage(); String pkgName = pkg.getShortDescription(); long compressedSize = newArchive.getSize(); ZipFile zipFile = null; try { zipFile = new ZipFile(archiveFile); // To advance the percent and the progress bar, we don't know the number of // items left to unzip. However we know the size of the archive and the size of // each uncompressed item. The zip file format overhead is negligible so that's // a good approximation. long incStep = compressedSize / NUM_MONITOR_INC; long incTotal = 0; long incCurr = 0; int lastPercent = 0; byte[] buf = new byte[65536]; Enumeration<ZipArchiveEntry> entries = zipFile.getEntries(); while (entries.hasMoreElements()) { ZipArchiveEntry entry = entries.nextElement(); String name = entry.getName(); // ZipFile entries should have forward slashes, but not all Zip // implementations can be expected to do that. name = name.replace('\\', '/'); // Zip entries are always packages in a top-level directory (e.g. docs/index.html). int pos = name.indexOf('/'); if (pos == -1) { // All zip entries should have a root folder. // This zip entry seems located at the root of the zip. // Rather than ignore the file, just place it at the root. } else if (pos == name.length() - 1) { // This is a zip *directory* entry in the form dir/, so essentially // it's the root directory of the SDK. It's safe to ignore that one // since we want to use our own root directory and we'll recreate // root directories as needed. // A direct consequence is that if a malformed archive has multiple // root directories, their content will all be merged together. continue; } else { // This is the expected behavior: the zip entry is in the form root/file // or root/dir/. We want to use our top-level directory so we drop the // first segment of the path name. name = name.substring(pos + 1); } File destFile = new File(unzipDestFolder, name); if (name.endsWith("/")) { //$NON-NLS-1$ // Create directory if it doesn't exist yet. This allows us to create // empty directories. if (!mFileOp.isDirectory(destFile) && !mFileOp.mkdirs(destFile)) { monitor.logError("Failed to create directory %1$s", destFile.getPath()); return false; } continue; } else if (name.indexOf('/') != -1) { // Otherwise it's a file in a sub-directory. // Sanity check: since we're always unzipping in a fresh temp folder // the destination file shouldn't already exist. if (mFileOp.exists(destFile)) { monitor.logVerbose("Duplicate file found: %1$s", name); } // Make sure the parent directory has been created. File parentDir = destFile.getParentFile(); if (!mFileOp.isDirectory(parentDir)) { if (!mFileOp.mkdirs(parentDir)) { monitor.logError("Failed to create directory %1$s", parentDir.getPath()); return false; } } } FileOutputStream fos = null; long remains = entry.getSize(); try { fos = new FileOutputStream(destFile); // Java bug 4040920: do not rely on the input stream EOF and don't // try to read more than the entry's size. InputStream entryContent = zipFile.getInputStream(entry); int n; while (remains > 0 && (n = entryContent.read(buf, 0, (int) Math.min(remains, buf.length))) != -1) { remains -= n; if (n > 0) { fos.write(buf, 0, n); } } } catch (EOFException e) { monitor.logError("Error uncompressing file %s. Size: %d bytes, Unwritten: %d bytes.", entry.getName(), entry.getSize(), remains); throw e; } finally { if (fos != null) { fos.close(); } } pkg.postUnzipFileHook(newArchive, monitor, mFileOp, destFile, entry); // Increment progress bar to match. We update only between files. for (incTotal += entry.getCompressedSize(); incCurr < incTotal; incCurr += incStep) { monitor.incProgress(1); } int percent = (int) (100 * incTotal / compressedSize); if (percent != lastPercent) { monitor.setDescription("Unzipping %1$s (%2$d%%)", pkgName, percent); lastPercent = percent; } if (monitor.isCancelRequested()) { return false; } } return true; } catch (IOException e) { monitor.logError("Unzip failed: %1$s", e.getMessage()); } finally { if (zipFile != null) { try { zipFile.close(); } catch (IOException e) { // pass } } } return false; }
From source file:ee.sk.digidoc.factory.SAXDigiDocFactory.java
/** * Reads in a DigiDoc file. One of fname or isSdoc must be given. * @param fname signed doc filename/*from ww w . j a v a 2 s.co m*/ * @param isSdoc opened stream with DigiDoc data * The user must open and close it. * @param errs list of errors to fill with parsing errors. If given * then attempt is made to continue parsing on errors and return them in this list. * If not given (null) then the first error found will be thrown. * @return signed document object if successfully parsed */ private SignedDoc readSignedDocOfType(String fname, InputStream isSdoc, boolean isBdoc, List errs) throws DigiDocException { // Use an instance of ourselves as the SAX event handler SAXDigiDocFactory handler = this; m_errs = errs; DigiDocVerifyFactory.initProvider(); SAXParserFactory factory = SAXParserFactory.newInstance(); if (m_logger.isDebugEnabled()) m_logger.debug("Start reading ddoc/bdoc " + ((fname != null) ? "from file: " + fname : "from stream") + " bdoc: " + isBdoc); if (fname == null && isSdoc == null) { throw new DigiDocException(DigiDocException.ERR_READ_FILE, "No input file", null); } if (fname != null) { File inFile = new File(fname); if (!inFile.canRead() || inFile.length() == 0) { throw new DigiDocException(DigiDocException.ERR_READ_FILE, "Empty or unreadable input file", null); } } ZipFile zf = null; ZipArchiveInputStream zis = null; ZipArchiveEntry ze = null; InputStream isEntry = null; File fTmp = null; try { factory.setFeature("http://xml.org/sax/features/external-general-entities", false); factory.setFeature("http://xml.org/sax/features/external-parameter-entities", false); if (isBdoc) { // bdoc parsing // must be a bdoc document ? m_doc = new SignedDoc(); m_doc.setVersion(SignedDoc.BDOC_VERSION_1_0); m_doc.setFormat(SignedDoc.FORMAT_BDOC); Enumeration eFiles = null; if (fname != null) { zf = new ZipFile(fname, "UTF-8"); eFiles = zf.getEntries(); } else if (isSdoc != null) { zis = new ZipArchiveInputStream(isSdoc, "UTF-8", true, true); } ArrayList lSigFnames = new ArrayList(); ArrayList lDataFnames = new ArrayList(); // read all entries boolean bHasMimetype = false, bManifest1 = false; int nFil = 0; while ((zf != null && eFiles.hasMoreElements()) || (zis != null && ((ze = zis.getNextZipEntry()) != null))) { nFil++; // read entry if (zf != null) { // ZipFile ze = (ZipArchiveEntry) eFiles.nextElement(); isEntry = zf.getInputStream(ze); } else { // ZipArchiveInputStream int n = 0, nTot = 0; if ((ze.getName().equals(FILE_MIMETYPE) || ze.getName().equals(FILE_MANIFEST) || (ze.getName().startsWith(FILE_SIGNATURES) && ze.getName().endsWith(".xml"))) || (nMaxBdocFilCached <= 0 || (ze.getSize() < nMaxBdocFilCached && ze.getSize() >= 0))) { ByteArrayOutputStream bos = new ByteArrayOutputStream(); byte[] data = new byte[2048]; while ((n = zis.read(data)) > 0) { bos.write(data, 0, n); nTot += n; } if (m_logger.isDebugEnabled()) m_logger.debug("Read: " + nTot + " bytes from zip"); data = bos.toByteArray(); bos = null; isEntry = new ByteArrayInputStream(data); } else { File fCacheDir = new File(ConfigManager.instance().getStringProperty( "DIGIDOC_DF_CACHE_DIR", System.getProperty("java.io.tmpdir"))); fTmp = File.createTempFile("bdoc-data", ".tmp", fCacheDir); FileOutputStream fos = new FileOutputStream(fTmp); byte[] data = new byte[2048]; while ((n = zis.read(data)) > 0) { fos.write(data, 0, n); nTot += n; } if (m_logger.isDebugEnabled()) m_logger.debug("Read: " + nTot + " bytes from zip to: " + fTmp.getAbsolutePath()); fos.close(); isEntry = new FileInputStream(fTmp); } } if (m_logger.isDebugEnabled()) m_logger.debug("Entry: " + ze.getName() + " nlen: " + ze.getName().length() + " size: " + ze.getSize() + " dir: " + ze.isDirectory() + " comp-size: " + ze.getCompressedSize()); // mimetype file if (ze.getName().equals(FILE_MIMETYPE)) { if (m_logger.isDebugEnabled()) m_logger.debug("Check mimetype!"); checkBdocMimetype(isEntry); bHasMimetype = true; m_doc.setComment(ze.getComment()); if (nFil != 1) { m_logger.error("mimetype file is " + nFil + " file but must be first"); handleError(new DigiDocException(DigiDocException.ERR_DIGIDOC_BADXML, "mimetype file is not first zip entry", null)); } } else if (ze.getName().equals(FILE_MANIFEST)) { // manifest.xml file if (m_logger.isDebugEnabled()) m_logger.debug("Read manifest"); if (!bManifest1 && isEntry != null) { bManifest1 = true; BdocManifestParser mfparser = new BdocManifestParser(m_doc); mfparser.readManifest(isEntry); } else { m_logger.error("Found multiple manifest.xml files!"); throw new DigiDocException(DigiDocException.ERR_MULTIPLE_MANIFEST_FILES, "Found multiple manifest.xml files!", null); } } else if (ze.getName().startsWith(FILE_SIGNATURES) && ze.getName().endsWith(".xml")) { // some signature m_fileName = ze.getName(); if (m_logger.isDebugEnabled()) m_logger.debug("Reading bdoc siganture: " + m_fileName); boolean bExists = false; for (int j = 0; j < lSigFnames.size(); j++) { String s1 = (String) lSigFnames.get(j); if (s1.equals(m_fileName)) bExists = true; } if (bExists) { m_logger.error("Duplicate signature filename: " + m_fileName); handleError(new DigiDocException(DigiDocException.ERR_DIGIDOC_BADXML, "Duplicate signature filename: " + m_fileName, null)); } else lSigFnames.add(m_fileName); SAXParser saxParser = factory.newSAXParser(); ByteArrayOutputStream bos = new ByteArrayOutputStream(); int n = 0; byte[] data = new byte[2048]; while ((n = isEntry.read(data)) > 0) bos.write(data, 0, n); data = bos.toByteArray(); bos = null; if (m_logger.isDebugEnabled()) m_logger.debug( "Parsing bdoc: " + m_fileName + " size: " + ((data != null) ? data.length : 0)); saxParser.parse(new SignatureInputStream(new ByteArrayInputStream(data)), this); if (m_logger.isDebugEnabled()) m_logger.debug("Parsed bdoc: " + m_fileName); Signature sig1 = m_doc.getLastSignature(); m_sigComment = ze.getComment(); if (sig1 != null) { sig1.setPath(m_fileName); sig1.setComment(ze.getComment()); } } else { // probably a data file if (m_logger.isDebugEnabled()) m_logger.debug("Read data file: " + ze.getName()); if (!ze.isDirectory()) { boolean bExists = false; for (int j = 0; j < lDataFnames.size(); j++) { String s1 = (String) lDataFnames.get(j); if (s1.equals(ze.getName())) bExists = true; } if (bExists) { m_logger.error("Duplicate datafile filename: " + ze.getName()); handleError(new DigiDocException(DigiDocException.ERR_DIGIDOC_BADXML, "Duplicate datafile filename: " + ze.getName(), null)); } else lDataFnames.add(ze.getName()); DataFile df = m_doc.findDataFileById(ze.getName()); if (df != null) { if (ze.getSize() > 0) df.setSize(ze.getSize()); df.setContentType(DataFile.CONTENT_BINARY); df.setFileName(ze.getName()); } else { df = new DataFile(ze.getName(), DataFile.CONTENT_BINARY, ze.getName(), "application/binary", m_doc); if (m_doc.getDataFiles() == null) m_doc.setDataFiles(new ArrayList()); m_doc.getDataFiles().add(df); //m_doc.addDataFile(df); // this does some intiailization work unnecessary here } // enable caching if requested if (isEntry != null) df.setOrCacheBodyAndCalcHashes(isEntry); df.setComment(ze.getComment()); df.setLastModDt(new Date(ze.getTime())); // fix mime type according to DataObjectFormat Signature sig1 = m_doc.getLastSignature(); if (sig1 != null) { Reference dRef = sig1.getSignedInfo().getReferenceForDataFile(df); if (dRef != null) { DataObjectFormat dof = sig1.getSignedInfo() .getDataObjectFormatForReference(dRef); if (dof != null) { df.setMimeType(dof.getMimeType()); } } } } } if (fTmp != null) { fTmp.delete(); fTmp = null; } } // while zip entries if (!bHasMimetype) { m_logger.error("No mimetype file"); handleError(new DigiDocException(DigiDocException.ERR_DIGIDOC_BADXML, "Not a BDOC format file! No mimetype file!", null)); } // if no signatures exist then copy mime-type from manifest.xml to DataFile -s if (m_doc.countSignatures() == 0) { for (int i = 0; i < m_doc.countDataFiles(); i++) { DataFile df = m_doc.getDataFile(i); if (m_doc.getManifest() != null) { for (int j = 0; j < m_doc.getManifest().getNumFileEntries(); j++) { ManifestFileEntry mfe = m_doc.getManifest().getFileEntry(j); if (mfe.getFullPath() != null && mfe.getFullPath().equals(df.getFileName())) { df.setMimeType(mfe.getMediaType()); } // if fullpath } // for } // if } // for i } } else { // ddoc parsing if (m_logger.isDebugEnabled()) m_logger.debug("Reading ddoc: " + fname + " file: " + m_fileName); m_fileName = fname; SAXParser saxParser = factory.newSAXParser(); if (fname != null) saxParser.parse(new SignatureInputStream(new FileInputStream(fname)), this); else if (isSdoc != null) saxParser.parse(isSdoc, this); } } catch (org.xml.sax.SAXParseException ex) { m_logger.error("SAX Error: " + ex); handleError(ex); } catch (Exception ex) { m_logger.error("Error reading3: " + ex); ex.printStackTrace(); /*if(ex instanceof DigiDocException){ DigiDocException dex = (DigiDocException)ex; m_logger.error("Dex: " + ex); if(dex.getNestedException() != null) { dex.getNestedException().printStackTrace(); m_logger.error("Trace: "); } }*/ handleError(ex); } finally { // cleanup try { if (isEntry != null) { isEntry.close(); isEntry = null; } if (zis != null) zis.close(); if (zf != null) zf.close(); if (fTmp != null) { fTmp.delete(); fTmp = null; } } catch (Exception ex) { m_logger.error("Error closing streams and files: " + ex); } } // compare Manifest and DataFiles boolean bErrList = (errs != null); if (errs == null) errs = new ArrayList(); boolean bOk = DigiDocVerifyFactory.verifyManifestEntries(m_doc, errs); if (m_doc == null) { m_logger.error("Error reading4: doc == null"); handleError(new DigiDocException(DigiDocException.ERR_DIGIDOC_BADXML, "This document is not in ddoc or bdoc format", null)); } if (!bErrList && errs.size() > 0) { // if error list was not used then we have to throw exception. So we will throw the first one since we can only do it once DigiDocException ex = (DigiDocException) errs.get(0); throw ex; } return m_doc; }
From source file:net.test.aliyun.oss.ImportShooterData.java
@Override public void onStart(AppContext appContext) throws Throwable { String BasePath = "D:/shooterData/"; OSSClient client = appContext.getInstance(OSSClient.class); String tempPath = appContext.getEnvironment().envVar(Environment.HASOR_TEMP_PATH); ///*from ww w . ja va 2 s . c om*/ File[] zipPacks = new File(BasePath).listFiles(); long intCount = 0; long size = 0; for (File zipfile : zipPacks) { String fileName = zipfile.getName(); fileName = fileName.split("\\.")[0]; ZipFile zipPack = new ZipFile(zipfile); Enumeration<ZipArchiveEntry> enumZip = zipPack.getEntries(); System.out.println(fileName); while (enumZip.hasMoreElements()) { ZipArchiveEntry ent = enumZip.nextElement(); if (ent.isDirectory() == true) { continue; } String itemName = ent.getName(); // // ObjectMetadata info = this.passInfo(tempPath, zipPack, ent); // info.addUserMetadata("oldFileName", itemName); // // String key = fileName + "/" + UUID.randomUUID().toString().replace("-", "") + ".rar"; //InputStream inStream = zipPack.getInputStream(ent); //PutObjectResult res = client.putObject("files-subtitle", key, inStream, info); // intCount++; long itemSize = ent.getSize(); String stated = String.format("%s-%s/%s\t%s\t%s", intCount, fileName, itemName, itemSize, ""); System.out.println(stated + " -> " + ""); size = size + itemSize; } zipPack.close(); } System.out.println(intCount + "\t" + size); }
From source file:net.test.aliyun.oss.ImportShooterData.java
private ObjectMetadata passInfo(String tempPath, ZipFile zipPack, ZipArchiveEntry ent) throws IOException { ObjectMetadata meta = new ObjectMetadata(); meta.setContentLength(ent.getSize()); meta.setContentDisposition(ent.getName() + ".rar"); return meta;//ww w .ja v a 2 s . c om }
From source file:org.abysm.onionzip.ZipFileExtractHelper.java
void listZipArchiveEntries() throws IOException { ZipFile zipFile = new ZipFile(zipFilename, encoding); try {/*from w w w. j a va 2 s .c o m*/ System.out.println("Length\tDatetime\tName\tEFS\tUnix Mode"); for (Enumeration<ZipArchiveEntry> zipArchiveEntryEnumeration = zipFile .getEntries(); zipArchiveEntryEnumeration.hasMoreElements();) { ZipArchiveEntry entry = zipArchiveEntryEnumeration.nextElement(); System.out.format("%d\t%s\t%s\t%b\t%o\n", entry.getSize(), entry.getLastModifiedDate().toString(), entry.getName(), entry.getGeneralPurposeBit().usesUTF8ForNames(), entry.getUnixMode()); } } finally { ZipFile.closeQuietly(zipFile); } }
From source file:org.apache.slider.common.tools.SliderUtils.java
public static InputStream getApplicationResourceInputStream(FileSystem fs, Path appPath, String entry) throws IOException { InputStream is = null;/*from w ww. ja v a 2s . co m*/ FSDataInputStream appStream = null; try { appStream = fs.open(appPath); ZipArchiveInputStream zis = new ZipArchiveInputStream(appStream); ZipArchiveEntry zipEntry; boolean done = false; while (!done && (zipEntry = zis.getNextZipEntry()) != null) { if (entry.equals(zipEntry.getName())) { int size = (int) zipEntry.getSize(); if (size != -1) { log.info("Reading {} of size {}", zipEntry.getName(), zipEntry.getSize()); byte[] content = new byte[size]; int offset = 0; while (offset < size) { offset += zis.read(content, offset, size - offset); } is = new ByteArrayInputStream(content); } else { log.debug("Size unknown. Reading {}", zipEntry.getName()); ByteArrayOutputStream baos = new ByteArrayOutputStream(); while (true) { int byteRead = zis.read(); if (byteRead == -1) { break; } baos.write(byteRead); } is = new ByteArrayInputStream(baos.toByteArray()); } done = true; } } } finally { IOUtils.closeStream(appStream); } return is; }
From source file:org.callimachusproject.behaviours.ZipArchiveSupport.java
public void validateZipAndClose(InputStream in) throws IOException { ZipArchiveInputStream zip = new ZipArchiveInputStream(in); try {// w w w .jav a 2s. co m byte[] buf = new byte[1024]; ZipArchiveEntry entry = zip.getNextZipEntry(); if (entry == null) throw new BadRequest("Archive is empty"); do { entry.getName(); entry.getMethod(); entry.getSize(); while (zip.read(buf, 0, buf.length) >= 0) ; entry = zip.getNextZipEntry(); } while (entry != null); } finally { zip.close(); } }
From source file:org.callimachusproject.behaviours.ZipArchiveSupport.java
public InputStream readZipEntry(String match) throws IOException { InputStream in = this.openInputStream(); try {//from w w w .j a v a2s .c om ZipArchiveInputStream zip = new ZipArchiveInputStream(in); byte[] buf = new byte[1024]; ZipArchiveEntry entry = zip.getNextZipEntry(); do { if (entry.getName().equals(match)) { return zip; } long size = entry.getSize(); if (size > 0) { zip.skip(size); } else { while (zip.read(buf, 0, buf.length) >= 0) ; } entry = zip.getNextZipEntry(); } while (entry != null); zip.close(); } catch (RuntimeException | Error | IOException e) { in.close(); throw e; } return null; }