Example usage for java.util.zip ZipOutputStream setLevel

Introduction

In this page you can find the example usage for java.util.zip ZipOutputStream setLevel.

Prototype

public void setLevel(int level) 

Source Link

Document

Sets the compression level for subsequent entries which are DEFLATED.

Usage

From source file:Main.java

public static void main(String[] args) throws IOException {
    String outputFile = "a.zip";
    int level = 9;
    FileOutputStream fout = new FileOutputStream(outputFile);
    ZipOutputStream zout = new ZipOutputStream(fout);
    zout.setLevel(level);

    ZipEntry ze = new ZipEntry("a.zip");
    FileInputStream fin = new FileInputStream("b.dat");
    zout.putNextEntry(ze);/*from  w ww.  j av  a 2s.  c  o  m*/
    for (int c = fin.read(); c != -1; c = fin.read()) {
        zout.write(c);
    }
    fin.close();
    zout.close();
}

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From source file:Main.java

public static void main(String[] args) throws IOException {
    String outputFile = "new.zip";
    int level = 9;
    int start = 1;

    FileOutputStream fout = new FileOutputStream(outputFile);
    ZipOutputStream zout = new ZipOutputStream(fout);
    zout.setLevel(level);
    for (int i = start; i < args.length; i++) {
        ZipEntry ze = new ZipEntry(args[i]);
        FileInputStream fin = new FileInputStream(args[i]);
        try {/*  w  w  w  . j  a  va 2 s . c om*/
            System.out.println("Compressing " + args[i]);
            zout.putNextEntry(ze);
            for (int c = fin.read(); c != -1; c = fin.read()) {
                zout.write(c);
            }
        } finally {
            fin.close();
        }
    }
    zout.close();
}

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From source file:MainClass.java

public static void main(String[] args) throws IOException {
    String outputFile = "new.zip";
    // Default to maximum compression
    int level = 9;
    int start = 1;

    FileOutputStream fout = new FileOutputStream(outputFile);
    ZipOutputStream zout = new ZipOutputStream(fout);
    zout.setLevel(level);
    for (int i = start; i < args.length; i++) {
        ZipEntry ze = new ZipEntry(args[i]);
        FileInputStream fin = new FileInputStream(args[i]);
        try {/*from  w  w  w.ja va  2  s .  c  om*/
            System.out.println("Compressing " + args[i]);
            zout.putNextEntry(ze);
            for (int c = fin.read(); c != -1; c = fin.read()) {
                zout.write(c);
            }
        } finally {
            fin.close();
        }
    }
    zout.close();
}

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From source file:Main.java

public static ZipOutputStream createZipOutputStream(File file, int compressLevel) {
    try {// w w w .j a  v  a 2  s .  co m
        if (!file.exists()) {
            file.createNewFile();
        }
        final FileOutputStream fos = new FileOutputStream(file);
        final ZipOutputStream zos = new ZipOutputStream(fos);
        zos.setLevel(compressLevel);
        return zos;
    } catch (final IOException e) {
        throw new RuntimeException(e);
    }

}

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From source file:Main.java

public static String compress(String filename) throws FileNotFoundException, IOException {
    byte[] buffer = new byte[4096];
    int bytesRead;
    String[] entries = { ".mp4" };
    String zipfile = filename.replace(".mp4", ".zip");
    if (!(new File(zipfile)).exists()) {
        ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipfile));
        out.setLevel(Deflater.BEST_COMPRESSION);
        out.setMethod(ZipOutputStream.DEFLATED);
        for (int i = 0; i < entries.length; i++) {
            File f = new File(filename.replace(".mp4", entries[i]));
            if (f.exists()) {
                FileInputStream in = new FileInputStream(f);
                ZipEntry entry = new ZipEntry(f.getName());
                out.putNextEntry(entry);
                while ((bytesRead = in.read(buffer)) != -1)
                    out.write(buffer, 0, bytesRead);
                in.close();//from   w  ww  .ja  v a 2s.c o  m
            }
        }
        out.close();
    }
    return zipfile;
}

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From source file:ZipHelper.java

public static void fileToZip(File file, File zipFile, int compressionLevel) throws Exception {
    zipFile.createNewFile();//ww  w.  jav  a2 s.  com
    FileOutputStream fout = new FileOutputStream(zipFile);
    ZipOutputStream zout = null;
    try {
        zout = new ZipOutputStream(new BufferedOutputStream(fout));
        zout.setLevel(compressionLevel);
        if (file.isDirectory()) {
            File[] files = file.listFiles();
            for (int i = 0; i < files.length; i++)
                fileToZip(files[i], zout, file);
        } else if (file.isFile()) {
            fileToZip(file, zout, file.getParentFile());
        }
    } finally {
        if (zout != null)
            zout.close();
    }
}

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From source file:Main.java

public static String zip(String filename) throws IOException {
    BufferedInputStream origin = null;
    Integer BUFFER_SIZE = 20480;/*from w ww  . ja  va2  s  .c  o  m*/

    if (android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED)) {

        File flockedFilesFolder = new File(
                Environment.getExternalStorageDirectory() + File.separator + "FlockLoad");
        System.out.println("FlockedFileDir: " + flockedFilesFolder);
        String uncompressedFile = flockedFilesFolder.toString() + "/" + filename;
        String compressedFile = flockedFilesFolder.toString() + "/" + "flockZip.zip";
        ZipOutputStream out = new ZipOutputStream(
                new BufferedOutputStream(new FileOutputStream(compressedFile)));
        out.setLevel(9);
        try {
            byte data[] = new byte[BUFFER_SIZE];
            FileInputStream fi = new FileInputStream(uncompressedFile);
            System.out.println("Filename: " + uncompressedFile);
            System.out.println("Zipfile: " + compressedFile);
            origin = new BufferedInputStream(fi, BUFFER_SIZE);
            try {
                ZipEntry entry = new ZipEntry(
                        uncompressedFile.substring(uncompressedFile.lastIndexOf("/") + 1));
                out.putNextEntry(entry);
                int count;
                while ((count = origin.read(data, 0, BUFFER_SIZE)) != -1) {
                    out.write(data, 0, count);
                }
            } finally {
                origin.close();
            }
        } finally {
            out.close();
        }
        return "flockZip.zip";
    }
    return null;
}

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From source file:com.recomdata.transmart.data.export.util.ZipUtil.java

/**
 * This method will bundle all the files into a zip file. 
 * If there are 2 files with the same name, only the first file is part of the zip.
 * /*from  w  w w.  ja v a 2 s .  co m*/
 * @param zipFileName
 * @param files
 * 
 * @return zipFile absolute path
 * 
 */
public static String bundleZipFile(String zipFileName, List<File> files) {
    File zipFile = null;
    Map<String, File> filesMap = new HashMap<String, File>();

    if (StringUtils.isEmpty(zipFileName))
        return null;

    try {
        zipFile = new File(zipFileName);
        if (zipFile.exists() && zipFile.isFile() && zipFile.delete()) {
            zipFile = new File(zipFileName);
        }

        ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipFile));
        zipOut.setLevel(ZipOutputStream.DEFLATED);
        byte[] buffer = new byte[BUFFER_SIZE];

        for (File file : files) {
            if (filesMap.containsKey(file.getName())) {
                continue;
            } else if (file.exists() && file.canRead()) {
                filesMap.put(file.getName(), file);
                zipOut.putNextEntry(new ZipEntry(file.getName()));
                FileInputStream fis = new FileInputStream(file);
                int bytesRead;
                while ((bytesRead = fis.read(buffer)) != -1) {
                    zipOut.write(buffer, 0, bytesRead);
                }
                zipOut.flush();
                zipOut.closeEntry();
            }
        }
        zipOut.finish();
        zipOut.close();
    } catch (IOException e) {
        //log.error("Error while creating Zip file");
    }

    return (null != zipFile) ? zipFile.getAbsolutePath() : null;
}

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From source file:com.l2jfree.gameserver.util.DatabaseBackupManager.java

public static void makeBackup() {
    File f = new File(Config.DATAPACK_ROOT, Config.DATABASE_BACKUP_SAVE_PATH);
    if (!f.mkdirs() && !f.exists()) {
        _log.warn("Could not create folder " + f.getAbsolutePath());
        return;/*from  w w w .  java2  s .c  om*/
    }

    _log.info("DatabaseBackupManager: backing up `" + Config.DATABASE_BACKUP_DATABASE_NAME + "`...");

    Process run = null;
    try {
        run = Runtime.getRuntime().exec("mysqldump" + " --user=" + Config.DATABASE_LOGIN + " --password="
                + Config.DATABASE_PASSWORD
                + " --compact --complete-insert --default-character-set=utf8 --extended-insert --lock-tables --quick --skip-triggers "
                + Config.DATABASE_BACKUP_DATABASE_NAME, null, new File(Config.DATABASE_BACKUP_MYSQLDUMP_PATH));
    } catch (Exception e) {
    } finally {
        if (run == null) {
            _log.warn("Could not execute mysqldump!");
            return;
        }
    }

    try {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd_HH-mm-ss");
        Date time = new Date();

        File bf = new File(f, sdf.format(time) + (Config.DATABASE_BACKUP_COMPRESSION ? ".zip" : ".sql"));
        if (!bf.createNewFile())
            throw new IOException("Cannot create backup file: " + bf.getCanonicalPath());
        InputStream input = run.getInputStream();
        OutputStream out = new FileOutputStream(bf);
        if (Config.DATABASE_BACKUP_COMPRESSION) {
            ZipOutputStream dflt = new ZipOutputStream(out);
            dflt.setMethod(ZipOutputStream.DEFLATED);
            dflt.setLevel(Deflater.BEST_COMPRESSION);
            dflt.setComment("L2JFree Schema Backup Utility\r\n\r\nBackup date: "
                    + new SimpleDateFormat("yyyy-MM-dd HH:mm:ss:SSS z").format(time));
            dflt.putNextEntry(new ZipEntry(Config.DATABASE_BACKUP_DATABASE_NAME + ".sql"));
            out = dflt;
        }

        byte[] buf = new byte[4096];
        int written = 0;
        for (int read; (read = input.read(buf)) != -1;) {
            out.write(buf, 0, read);

            written += read;
        }
        input.close();
        out.close();

        if (written == 0) {
            bf.delete();
            BufferedReader br = new BufferedReader(new InputStreamReader(run.getErrorStream()));
            String line;
            while ((line = br.readLine()) != null)
                _log.warn("DatabaseBackupManager: " + line);
            br.close();
        } else
            _log.info("DatabaseBackupManager: Schema `" + Config.DATABASE_BACKUP_DATABASE_NAME
                    + "` backed up successfully in " + (System.currentTimeMillis() - time.getTime()) / 1000
                    + " s.");

        run.waitFor();
    } catch (Exception e) {
        _log.warn("DatabaseBackupManager: Could not make backup: ", e);
    }
}

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From source file:de.thischwa.pmcms.tool.compression.Zip.java

/**
 * Static method to compress all files based on the ImputStream in 'entries' into 'zip'. 
 * Each entry has a InputStream and its String representation in the zip.
 * //  ww w. j ava2  s.c  o m
 * @param zip The zip file. It will be deleted if exists. 
 * @param entries Map<File, String>
 * @param monitor Must be initialized correctly by the caller.
 * @throws IOException
 */
public static void compress(final File zip, final Map<InputStream, String> entries,
        final IProgressMonitor monitor) throws IOException {
    if (zip == null || entries == null || CollectionUtils.isEmpty(entries.keySet()))
        throw new IllegalArgumentException("One ore more parameters are empty!");
    if (zip.exists())
        zip.delete();
    else if (!zip.getParentFile().exists())
        zip.getParentFile().mkdirs();

    ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(zip)));
    out.setLevel(Deflater.BEST_COMPRESSION);
    try {
        for (InputStream inputStream : entries.keySet()) {
            // skip beginning slash, because can cause errors in other zip apps
            ZipEntry zipEntry = new ZipEntry(skipBeginningSlash(entries.get(inputStream)));
            out.putNextEntry(zipEntry);
            IOUtils.copy(inputStream, out);
            out.closeEntry();
            inputStream.close();
            if (monitor != null)
                monitor.worked(1);
        }
    } finally { // cleanup
        IOUtils.closeQuietly(out);
    }
}

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