Example usage for java.util.zip ZipInputStream getNextEntry

List of usage examples for java.util.zip ZipInputStream getNextEntry

  1. HOME
  2. Java
  3. java
  4. java.util.zip.*
  5. ZipInputStream
  6. getNextEntry

Introduction

In this page you can find the example usage for java.util.zip ZipInputStream getNextEntry.

Prototype

public ZipEntry getNextEntry() throws IOException

Source Link

Document

Reads the next ZIP file entry and positions the stream at the beginning of the entry data.

Usage

From source file:Main.java

public static void readZipFile(String file) throws Exception {
    ZipFile zf = new ZipFile(file);
    InputStream in = new BufferedInputStream(new FileInputStream(file));
    ZipInputStream zin = new ZipInputStream(in);
    ZipEntry ze;// ww  w .j  a v  a2  s .c  o  m
    while ((ze = zin.getNextEntry()) != null) {
        if (ze.isDirectory()) {
        } else {
            System.err.println("file - " + ze.getName() + " : " + ze.getSize() + " bytes");
            long size = ze.getSize();
            if (size > 0) {
                BufferedReader br = new BufferedReader(new InputStreamReader(zf.getInputStream(ze)));
                String line;
                while ((line = br.readLine()) != null) {
                    System.out.println(line);
                }
                br.close();
            }
            System.out.println();
        }
    }
    zin.closeEntry();
}

From source file:com.sonatype.nexus.repository.nuget.internal.odata.NugetPackageUtils.java

private static byte[] extractNuspec(final InputStream is) {
    try {/*  w ww.ja  v  a 2  s.  co  m*/
        ZipInputStream zis = new ZipInputStream(is);
        for (ZipEntry e = zis.getNextEntry(); e != null; e = zis.getNextEntry()) {
            if (e.getName().endsWith(".nuspec")) {
                return ByteStreams.toByteArray(zis);
            }
        }
    } catch (IOException e) {
        throw Throwables.propagate(e);
    }
    throw new RuntimeException("Missing nuspec");
}

From source file:Main.java

public static void unzip(String zipFilePath, String fileName) {

    try {/*from w w w .  j  av  a 2  s.co m*/
        FileInputStream fin = new FileInputStream(zipFilePath);
        ZipInputStream zin = new ZipInputStream(fin);

        do {
            // no-op
        } while (!zin.getNextEntry().getName().equals(fileName));

        OutputStream os = new FileOutputStream(fileName);

        byte[] buffer = new byte[1024];
        int length;

        //read the entry from zip file and extract it to disk
        while ((length = zin.read(buffer)) > 0) {
            os.write(buffer, 0, length);
        }
        os.close();
        zin.close();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }

}

From source file:Main.java

public static void Unzip(String dir, byte[] data) throws Exception {
    ByteArrayInputStream input = new ByteArrayInputStream(data);
    ZipInputStream zipIn = new ZipInputStream(input);
    ZipEntry entry;/*from  w ww . j a  v a  2 s  . c  o  m*/
    while ((entry = zipIn.getNextEntry()) != null) {
        String outpath = dir + entry.getName();
        FileOutputStream output = null;
        try {
            File f = new File(outpath);
            f.getParentFile().mkdirs();

            output = new FileOutputStream(f);
            int len = 0;
            byte[] buffer = new byte[4096];
            while ((len = zipIn.read(buffer)) > 0) {
                output.write(buffer, 0, len);
            }
        } finally {
            if (output != null)
                output.close();
        }
    }

    zipIn.close();
}

From source file:Main.java

public static void unzip(InputStream is, String dir) throws IOException {
    File dest = new File(dir);
    if (!dest.exists()) {
        dest.mkdirs();//from  ww w.ja  v  a2 s .c o m
    }

    if (!dest.isDirectory())
        throw new IOException("Invalid Unzip destination " + dest);
    if (null == is) {
        throw new IOException("InputStream is null");
    }

    ZipInputStream zip = new ZipInputStream(is);

    ZipEntry ze;
    while ((ze = zip.getNextEntry()) != null) {
        final String path = dest.getAbsolutePath() + File.separator + ze.getName();

        String zeName = ze.getName();
        char cTail = zeName.charAt(zeName.length() - 1);
        if (cTail == File.separatorChar) {
            File file = new File(path);
            if (!file.exists()) {
                if (!file.mkdirs()) {
                    throw new IOException("Unable to create folder " + file);
                }
            }
            continue;
        }

        FileOutputStream fout = new FileOutputStream(path);
        byte[] bytes = new byte[1024];
        int c;
        while ((c = zip.read(bytes)) != -1) {
            fout.write(bytes, 0, c);
        }
        zip.closeEntry();
        fout.close();
    }
}

From source file:Main.java

public static void unZip(String zipFile, String outputFolder) {
    byte[] buffer = new byte[BUFFER_SIZE];

    try {/*ww w  .  j a  v a  2  s .  c o  m*/
        File folder = new File(outputFolder);
        if (!folder.exists()) {
            folder.mkdir();
        }

        ZipInputStream zis = new ZipInputStream(new FileInputStream(zipFile));
        ZipEntry ze = zis.getNextEntry();

        while (ze != null) {
            String fileName = ze.getName();
            File newFile = new File(outputFolder + File.separator + fileName);

            System.out.println("file unzip : " + newFile.getAbsoluteFile());
            if (ze.isDirectory()) {
                newFile.mkdirs();
            } else {
                FileOutputStream fos = new FileOutputStream(newFile);
                int len;
                while ((len = zis.read(buffer)) > 0) {
                    fos.write(buffer, 0, len);
                }
                fos.close();
            }
            ze = zis.getNextEntry();
        }
        zis.closeEntry();
        zis.close();
        System.out.println("Done");
    } catch (IOException ex) {
        ex.printStackTrace();
    }
}

From source file:Main.java

public static void unzip(final InputStream input, final File destFolder) {
    try {//from  w w w.  ja va  2  s .  c  om
        byte[] buffer = new byte[4096];
        int read;
        ZipInputStream is = new ZipInputStream(input);
        ZipEntry entry;
        while ((entry = is.getNextEntry()) != null) {
            if (!entry.isDirectory()) {
                String fileName = entry.getName();
                File fileFolder = destFolder;
                int lastSep = entry.getName().lastIndexOf(File.separatorChar);
                if (lastSep != -1) {
                    String dirPath = fileName.substring(0, lastSep);
                    fileFolder = new File(fileFolder, dirPath);
                    fileName = fileName.substring(lastSep + 1);
                }
                fileFolder.mkdirs();
                File file = new File(fileFolder, fileName);
                FileOutputStream os = new FileOutputStream(file);
                while ((read = is.read(buffer)) != -1) {
                    os.write(buffer, 0, read);
                }
                os.flush();
                os.close();
            }
        }
        is.close();
    } catch (Exception ex) {
        throw new RuntimeException("Cannot unzip stream to " + destFolder.getAbsolutePath(), ex);
    }
}

From source file:Main.java

private static List<String> extractClassNames(String path) throws IOException, NoSuchMethodException,
        SecurityException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {
    addToClassPath(path);/*  ww  w  . j  av a2 s.c o m*/
    List<String> classNames = new ArrayList<String>();
    ZipInputStream zipStream = new ZipInputStream(new FileInputStream(path));
    try {
        for (ZipEntry entry = zipStream.getNextEntry(); entry != null; entry = zipStream.getNextEntry()) {
            if (!entry.isDirectory() && entry.getName().endsWith(".class")) {
                String className = entry.getName().replace('/', '.');
                classNames.add(className.substring(0, className.length() - ".class".length()));
            }
        }
        return classNames;
    } finally {
        zipStream.close();
    }
}

From source file:Main.java

/**
 * kudos: http://www.jondev.net/articles/Unzipping_Files_with_Android_(Programmatically)
 * @param zipFile/*from  ww w.  j a  va 2 s . c  o m*/
 * @param destinationDirectory
 */
public static void unZip(String zipFile, String destinationDirectory) {
    try {
        FileInputStream fin = new FileInputStream(zipFile);
        ZipInputStream zin = new ZipInputStream(fin);
        ZipEntry ze = null;
        while ((ze = zin.getNextEntry()) != null) {
            Log.v("Decompress", "Unzipping " + ze.getName());
            String destinationPath = destinationDirectory + File.separator + ze.getName();
            if (ze.isDirectory()) {
                dirChecker(destinationPath);
            } else {
                FileOutputStream fout;
                try {
                    File outputFile = new File(destinationPath);
                    if (!outputFile.getParentFile().exists()) {
                        dirChecker(outputFile.getParentFile().getPath());
                    }
                    fout = new FileOutputStream(destinationPath);
                    for (int c = zin.read(); c != -1; c = zin.read()) {
                        fout.write(c);
                    }
                    zin.closeEntry();
                    fout.close();
                } catch (Exception e) {
                    // ok for now.
                    Log.v("Decompress", "Error: " + e.getMessage());
                }
            }
        }
        zin.close();
    } catch (Exception e) {
        Log.e("Decompress", "unzip", e);
    }
}

From source file:Main.java

public static void unZip(String path) {
    int count = -1;
    int index = -1;

    String savepath = "";

    savepath = path.substring(0, path.lastIndexOf("."));
    try {/*from  w w w  . j a  v a2  s .  c o  m*/
        BufferedOutputStream bos = null;
        ZipEntry entry = null;
        FileInputStream fis = new FileInputStream(path);
        ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fis));

        while ((entry = zis.getNextEntry()) != null) {
            byte data[] = new byte[buffer];

            String temp = entry.getName();
            index = temp.lastIndexOf("/");
            if (index > -1)
                temp = temp.substring(index + 1);
            String tempDir = savepath + "/zip/";
            File dir = new File(tempDir);
            dir.mkdirs();
            temp = tempDir + temp;
            File f = new File(temp);
            f.createNewFile();

            FileOutputStream fos = new FileOutputStream(f);
            bos = new BufferedOutputStream(fos, buffer);

            while ((count = zis.read(data, 0, buffer)) != -1) {
                bos.write(data, 0, count);
            }

            bos.flush();
            bos.close();
        }

        zis.close();

    } catch (Exception e) {
        e.printStackTrace();
    }
}