Example usage for java.util.zip ZipEntry getCompressedSize

Introduction

In this page you can find the example usage for java.util.zip ZipEntry getCompressedSize.

Prototype

public long getCompressedSize() 

Source Link

Document

Returns the size of the compressed entry data.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    String zipname = "data.zip";
    ZipFile zipFile = new ZipFile(zipname);
    Enumeration enumeration = zipFile.entries();
    while (enumeration.hasMoreElements()) {
        ZipEntry zipEntry = (ZipEntry) enumeration.nextElement();
        System.out.println(zipEntry.getCompressedSize());
    }//from  w w w.java  2 s .  c om
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    ZipFile zip = new ZipFile(new File("sample.zip"));

    for (Enumeration e = zip.entries(); e.hasMoreElements();) {
        ZipEntry entry = (ZipEntry) e.nextElement();
        System.out.println("File name: " + entry.getName() + "; size: " + entry.getSize()
                + "; compressed size: " + entry.getCompressedSize());
        InputStream is = zip.getInputStream(entry);
        InputStreamReader isr = new InputStreamReader(is);

        char[] buffer = new char[1024];
        while (isr.read(buffer, 0, buffer.length) != -1) {
            String s = new String(buffer);
            System.out.println(s.trim());
        }/*  w ww .  j a  v  a 2 s  .  c o m*/
    }
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    ZipFile zf = new ZipFile("a.zip");
    Enumeration e = zf.entries();
    while (e.hasMoreElements()) {
        ZipEntry ze = (ZipEntry) e.nextElement();
        String name = ze.getName();

        long uncompressedSize = ze.getSize();
        long compressedSize = ze.getCompressedSize();
        long crc = ze.getCrc();
        int method = ze.getMethod();
        String comment = ze.getComment();

        System.out.println(name + " was stored at " + new Date(ze.getTime()));
        if (method == ZipEntry.STORED) {
            System.out.println("with a size of  " + uncompressedSize + " bytes");
        } else if (method == ZipEntry.DEFLATED) {
            System.out.println("from " + uncompressedSize + " bytes to " + compressedSize);
        } else {/*  w w  w  .j a  v  a 2 s  .  co m*/
            System.out.println("from " + uncompressedSize + " bytes to " + compressedSize);
        }
        System.out.println("Its CRC is " + crc);
        if (comment != null && !comment.equals("")) {
            System.out.println(comment);
        }
        if (ze.isDirectory()) {
            System.out.println(name + " is a directory");
        }
    }
}

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From source file:Main.java

public static void main(String[] argv) throws Exception {
    ZipFile zf = new ZipFile("a.zip");
    Enumeration<? extends ZipEntry> files = zf.entries();

    while (files.hasMoreElements()) {
        ZipEntry ze = files.nextElement();

        System.out.println("Decompressing " + ze.getName());
        System.out.println(/*from  ww  w . ja  v a  2  s  .com*/
                "  Compressed Size: " + ze.getCompressedSize() + "  Expanded Size: " + ze.getSize() + "\n");

        BufferedInputStream fin = new BufferedInputStream(zf.getInputStream(ze));
        BufferedOutputStream fout = new BufferedOutputStream(new FileOutputStream(ze.getName()));

        int i;
        do {
            i = fin.read();
            if (i != -1)
                fout.write(i);
        } while (i != -1);

        fout.close();
        fin.close();
    }
    zf.close();
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    ZipFile zf = new ZipFile("your.zip");
    Enumeration e = zf.entries();
    while (e.hasMoreElements()) {
        ZipEntry ze = (ZipEntry) e.nextElement();
        String name = ze.getName();

        Date lastModified = new Date(ze.getTime());
        long uncompressedSize = ze.getSize();
        long compressedSize = ze.getCompressedSize();

        int method = ze.getMethod();

        if (method == ZipEntry.STORED) {
            System.out.println(name + " was stored at " + lastModified);
            System.out.println("with a size of  " + uncompressedSize + " bytes");
        } else if (method == ZipEntry.DEFLATED) {
            System.out.println(name + " was deflated at " + lastModified);
            System.out.println("from  " + uncompressedSize + " bytes to " + compressedSize
                    + " bytes, a savings of " + (100.0 - 100.0 * compressedSize / uncompressedSize) + "%");
        } else {//w  w  w  .j  a  va 2s  .c  om
            System.out.println(name + " was compressed at " + lastModified);
            System.out.println("from  " + uncompressedSize + " bytes to " + compressedSize
                    + " bytes, a savings of " + (100.0 - 100.0 * compressedSize / uncompressedSize) + "%");
        }
    }
}

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From source file:MainClass.java

public static void main(String[] args) {

    try {//from w ww .j  a  v a2s  .c  om
        ZipFile zf = new ZipFile("your.zip");
        Enumeration e = zf.entries();
        while (e.hasMoreElements()) {
            ZipEntry ze = (ZipEntry) e.nextElement();
            String name = ze.getName();
            Date lastModified = new Date(ze.getTime());
            long uncompressedSize = ze.getSize();
            long compressedSize = ze.getCompressedSize();

            System.out.println(name);
            System.out.println(lastModified);
            System.out.println(uncompressedSize);
            System.out.println(compressedSize);

        }
    } catch (IOException ex) {
        System.err.println(ex);
    }
}

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From source file:MainClass.java

public static void main(String[] args) {

    try {/*w w w  .ja va 2s .co  m*/
        ZipFile zf = new ZipFile("your.zip");
        Enumeration e = zf.entries();
        while (e.hasMoreElements()) {
            ZipEntry ze = (ZipEntry) e.nextElement();
            String name = ze.getName();

            Date lastModified = new Date(ze.getTime());
            long uncompressedSize = ze.getSize();
            long compressedSize = ze.getCompressedSize();

            int method = ze.getMethod();

            if (method == ZipEntry.STORED) {
                System.out.println(name + " was stored at " + lastModified);
                System.out.println("with a size of  " + uncompressedSize + " bytes");
            } else if (method == ZipEntry.DEFLATED) {
                System.out.println(name + " was deflated at " + lastModified);
                System.out.println("from  " + uncompressedSize + " bytes to " + compressedSize
                        + " bytes, a savings of " + (100.0 - 100.0 * compressedSize / uncompressedSize) + "%");
            } else {
                System.out.println(name + " was compressed using an unrecognized method at " + lastModified);
                System.out.println("from  " + uncompressedSize + " bytes to " + compressedSize
                        + " bytes, a savings of " + (100.0 - 100.0 * compressedSize / uncompressedSize) + "%");
            }
        }
    } catch (IOException ex) {
        System.err.println(ex);
    }
}

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From source file:Main.java

public static void main(String args[]) throws Exception {
    ZipOutputStream fout = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(args[0])));

    for (int n = 1; n < args.length; n++) {

        BufferedInputStream fin = new BufferedInputStream(new FileInputStream(args[n]));
        ZipEntry ze = new ZipEntry(rmPath(args[n]));

        fout.putNextEntry(ze);// w w w  .  j  a  va 2 s.  co m

        int i;
        do {
            i = fin.read();
            if (i != -1)
                fout.write(i);
        } while (i != -1);

        fout.closeEntry();
        fin.close();

        System.out.println("Compressing " + args[n]);
        System.out.println(
                " Original Size: " + ze.getSize() + " Compressed Size: " + ze.getCompressedSize() + "\n");
    }
    fout.close();
}

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From source file:org.mycontroller.standalone.backup.Restore.java

private static void extractZipFile(String zipFileName, String destination)
        throws FileNotFoundException, IOException {
    ZipFile zipFile = new ZipFile(zipFileName);
    Enumeration<?> enu = zipFile.entries();
    //create destination if not exists
    FileUtils.forceMkdir(FileUtils.getFile(destination));
    while (enu.hasMoreElements()) {
        ZipEntry zipEntry = (ZipEntry) enu.nextElement();
        String name = zipEntry.getName();
        long size = zipEntry.getSize();
        long compressedSize = zipEntry.getCompressedSize();
        _logger.debug("name:{} | size:{} | compressed size:{}", name, size, compressedSize);
        File file = FileUtils.getFile(destination + File.separator + name);
        //Create destination if it's not available
        if (name.endsWith(File.separator)) {
            file.mkdirs();//from  www.  j a va 2 s .com
            continue;
        }

        File parent = file.getParentFile();
        if (parent != null) {
            parent.mkdirs();
        }

        InputStream is = zipFile.getInputStream(zipEntry);
        FileOutputStream fos = new FileOutputStream(file);
        byte[] bytes = new byte[1024];
        int length;
        while ((length = is.read(bytes)) >= 0) {
            fos.write(bytes, 0, length);
        }
        is.close();
        fos.close();
    }
    zipFile.close();
}

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From source file:org.mycontroller.standalone.BackupRestore.java

private static void extractZipFile(String zipFileName, String destination)
        throws FileNotFoundException, IOException {
    ZipFile zipFile = new ZipFile(zipFileName);
    Enumeration<?> enu = zipFile.entries();
    //create destination if not exists
    FileUtils.forceMkdir(FileUtils.getFile(destination));
    while (enu.hasMoreElements()) {
        ZipEntry zipEntry = (ZipEntry) enu.nextElement();
        String name = zipEntry.getName();
        long size = zipEntry.getSize();
        long compressedSize = zipEntry.getCompressedSize();
        _logger.debug("name:{} | size:{} | compressed size:{}", name, size, compressedSize);
        File file = FileUtils.getFile(destination + "/" + name);
        //Create destination if it's not available
        if (name.endsWith("/")) {
            file.mkdirs();/*from w ww. j a  v a  2 s  .co  m*/
            continue;
        }

        File parent = file.getParentFile();
        if (parent != null) {
            parent.mkdirs();
        }

        InputStream is = zipFile.getInputStream(zipEntry);
        FileOutputStream fos = new FileOutputStream(file);
        byte[] bytes = new byte[1024];
        int length;
        while ((length = is.read(bytes)) >= 0) {
            fos.write(bytes, 0, length);
        }
        is.close();
        fos.close();
    }
    zipFile.close();
}

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