Example usage for java.util.zip GZIPInputStream read

Introduction

In this page you can find the example usage for java.util.zip GZIPInputStream read.

Prototype

public int read(byte b[]) throws IOException 

Source Link

Document

Reads up to b.length bytes of data from this input stream into an array of bytes.

Usage

From source file:Base64.java

/**
 * Decodes data from Base64 notation, automatically
 * detecting gzip-compressed data and decompressing it.
 *
 * @param s the string to decode//  w w w.j a  v  a  2 s  . c o m
 * @return the decoded data
 * @since 1.4
 */
public static byte[] decode(String s) {
    byte[] bytes;
    try {
        bytes = s.getBytes(PREFERRED_ENCODING);
    } // end try
    catch (java.io.UnsupportedEncodingException uee) {
        bytes = s.getBytes();
    } // end catch
    //</change>

    // Decode
    bytes = decode(bytes, 0, bytes.length);

    // Check to see if it's gzip-compressed
    // GZIP Magic Two-Byte Number: 0x8b1f (35615)
    if (bytes != null && bytes.length >= 4) {

        int head = ((int) bytes[0] & 0xff) | ((bytes[1] << 8) & 0xff00);
        if (java.util.zip.GZIPInputStream.GZIP_MAGIC == head) {
            java.io.ByteArrayInputStream bais = null;
            java.util.zip.GZIPInputStream gzis = null;
            java.io.ByteArrayOutputStream baos = null;
            byte[] buffer = new byte[2048];
            int length = 0;

            try {
                baos = new java.io.ByteArrayOutputStream();
                bais = new java.io.ByteArrayInputStream(bytes);
                gzis = new java.util.zip.GZIPInputStream(bais);

                while ((length = gzis.read(buffer)) >= 0) {
                    baos.write(buffer, 0, length);
                } // end while: reading input

                // No error? Get new bytes.
                bytes = baos.toByteArray();

            } // end try
            catch (java.io.IOException e) {
                // Just return originally-decoded bytes
            } // end catch
            finally {
                try {
                    baos.close();
                } catch (Exception e) {
                }
                try {
                    gzis.close();
                } catch (Exception e) {
                }
                try {
                    bais.close();
                } catch (Exception e) {
                }
            } // end finally

        } // end if: gzipped
    } // end if: bytes.length >= 2

    return bytes;
}

---

From source file:com.github.tomakehurst.wiremock.StandaloneAcceptanceTest.java

/**
 * Decompress the binary gzipped content into a String.
 *
 * @param content the gzipped content to decompress
 * @return decompressed String./*from w  w  w .  j  av a2  s.  c  om*/
 */
private String decompress(byte[] content) {
    GZIPInputStream gin = null;
    try {
        gin = new GZIPInputStream(new ByteArrayInputStream(content));
        ByteArrayOutputStream baos = new ByteArrayOutputStream();

        byte[] buf = new byte[8192];

        int read = -1;
        while ((read = gin.read(buf)) != -1) {
            baos.write(buf, 0, read);
        }

        return new String(baos.toByteArray(), Charset.forName(UTF_8.name()));

    } catch (IOException e) {
        return null;
    } finally {
        if (gin != null)
            try {
                gin.close();
            } catch (IOException e) {

            }
    }
}

---

From source file:com.csipsimple.service.DownloadLibService.java

private boolean installRemoteLib(RemoteLibInfo lib) {
    String fileName = lib.getFileName();
    File filePath = lib.getFilePath();

    File tmp_gz = new File(filePath, fileName + ".gz");
    File dest = new File(filePath, fileName);

    try {//from   w ww.  j a  v  a  2  s  .  c  o m
        if (dest.exists()) {
            dest.delete();
        }
        RandomAccessFile out = new RandomAccessFile(dest, "rw");
        out.seek(0);
        GZIPInputStream zis = new GZIPInputStream(new FileInputStream(tmp_gz));
        int len;
        byte[] buf = new byte[BUFFER];
        while ((len = zis.read(buf)) > 0) {
            out.write(buf, 0, len);
        }
        zis.close();
        out.close();
        Log.d(THIS_FILE, "Ungzip is in : " + dest.getAbsolutePath());
        tmp_gz.delete();
        //Update preferences fields with current stack values
        Editor editor = prefs.edit();
        editor.putString(CURRENT_STACK_ID, lib.getId());
        editor.putString(CURRENT_STACK_VERSION, lib.getVersion());
        editor.putString(CURRENT_STACK_URI, lib.getDownloadUri().toString());
        editor.commit();
        return true;
    } catch (IOException e) {
        Log.e(THIS_FILE, "We failed to install it ", e);
    }
    return false;
}

---

From source file:Base64.java

/**
 * Decodes data from Base64 notation, automatically
 * detecting gzip-compressed data and decompressing it.
 *
 * @param s the string to decode//from   www  .j  av  a  2 s.c o m
 * @return the decoded data
 * @since 1.4
 */
public static byte[] decode(String s) {
    byte[] bytes;
    try {
        bytes = s.getBytes(PREFERRED_ENCODING);
    } // end try
    catch (java.io.UnsupportedEncodingException uee) {
        bytes = s.getBytes();
    } // end catch
      //</change>

    // Decode
    bytes = decode(bytes, 0, bytes.length);

    // Check to see if it's gzip-compressed
    // GZIP Magic Two-Byte Number: 0x8b1f (35615)
    if (bytes != null && bytes.length >= 4) {

        int head = (bytes[0] & 0xff) | ((bytes[1] << 8) & 0xff00);
        if (java.util.zip.GZIPInputStream.GZIP_MAGIC == head) {
            java.io.ByteArrayInputStream bais = null;
            java.util.zip.GZIPInputStream gzis = null;
            java.io.ByteArrayOutputStream baos = null;
            byte[] buffer = new byte[2048];
            int length = 0;

            try {
                baos = new java.io.ByteArrayOutputStream();
                bais = new java.io.ByteArrayInputStream(bytes);
                gzis = new java.util.zip.GZIPInputStream(bais);

                while ((length = gzis.read(buffer)) >= 0) {
                    baos.write(buffer, 0, length);
                } // end while: reading input

                // No error? Get new bytes.
                bytes = baos.toByteArray();

            } // end try
            catch (java.io.IOException e) {
                // Just return originally-decoded bytes
            } // end catch
            finally {
                try {
                    baos.close();
                } catch (Exception e) {
                }
                try {
                    gzis.close();
                } catch (Exception e) {
                }
                try {
                    bais.close();
                } catch (Exception e) {
                }
            } // end finally

        } // end if: gzipped
    } // end if: bytes.length >= 2

    return bytes;
}

---

From source file:com.ning.http.client.async.MultipartUploadTest.java

/**
 * Test that the files were sent, based on the response from the servlet
 *
 * @param expectedContents//from  w  w w.  j a v a2  s  .  c  om
 * @param sourceFiles
 * @param r
 * @param deflate
 */
private void testSentFile(List<String> expectedContents, List<File> sourceFiles, Response r,
        List<Boolean> deflate) {
    String content = null;
    try {
        content = r.getResponseBody();
        assertNotNull("===>" + content);
        System.out.println(content);
    } catch (IOException e) {
        fail("Unable to obtain content");
    }

    String[] contentArray = content.split("\\|\\|");
    // TODO: this fail on win32
    assertEquals(2, contentArray.length);

    String tmpFiles = contentArray[1];
    assertNotNull(tmpFiles);
    assertTrue(tmpFiles.trim().length() > 2);
    tmpFiles = tmpFiles.substring(1, tmpFiles.length() - 1);

    String[] responseFiles = tmpFiles.split(",");
    assertNotNull(responseFiles);
    assertEquals(sourceFiles.size(), responseFiles.length);

    System.out.println(Arrays.toString(responseFiles));
    //assertTrue("File should exist: " + tmpFile.getAbsolutePath(),tmpFile.exists());

    int i = 0;
    for (File sourceFile : sourceFiles) {

        FileInputStream instream = null;
        File tmp = null;
        try {

            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            byte[] sourceBytes = null;
            try {
                instream = new FileInputStream(sourceFile);
                byte[] buf = new byte[8092];
                int len = 0;
                while ((len = instream.read(buf)) > 0) {
                    baos.write(buf, 0, len);
                }
                System.out.println("================");
                System.out.println("Length of file: " + baos.toByteArray().length);
                System.out.println("Contents: " + Arrays.toString(baos.toByteArray()));
                System.out.println("================");
                System.out.flush();
                sourceBytes = baos.toByteArray();
            } finally {
                IOUtils.closeQuietly(instream);
            }

            tmp = new File(responseFiles[i].trim());
            System.out.println("==============================");
            System.out.println(tmp.getAbsolutePath());
            System.out.println("==============================");
            System.out.flush();
            assertTrue(tmp.exists());

            instream = new FileInputStream(tmp);
            ByteArrayOutputStream baos2 = new ByteArrayOutputStream();
            byte[] buf = new byte[8092];
            int len = 0;
            while ((len = instream.read(buf)) > 0) {
                baos2.write(buf, 0, len);
            }
            IOUtils.closeQuietly(instream);

            assertEquals(sourceBytes, baos2.toByteArray());

            if (!deflate.get(i)) {

                String helloString = new String(baos2.toByteArray());
                assertEquals(expectedContents.get(i), helloString);
            } else {
                instream = new FileInputStream(tmp);

                GZIPInputStream deflater = new GZIPInputStream(instream);
                ByteArrayOutputStream baos3 = new ByteArrayOutputStream();
                byte[] buf3 = new byte[8092];
                int len3 = 0;
                while ((len3 = deflater.read(buf3)) > 0) {
                    baos3.write(buf3, 0, len3);
                }

                String helloString = new String(baos3.toByteArray());

                assertEquals(expectedContents.get(i), helloString);

            }
        } catch (Exception e) {
            e.printStackTrace();
            fail("Download Exception");
        } finally {
            if (tmp != null)
                FileUtils.deleteQuietly(tmp);
            IOUtils.closeQuietly(instream);
            i++;
        }
    }
}

---

From source file:fr.gouv.finances.cp.xemelios.importers.batch.BatchRealImporter.java

private ImportContent files(final String extension, final String titreEtat) {
    ImportContent ic = new ImportContent();
    Vector<File> ret = new Vector<File>();
    ret.addAll(files);/*ww w.j av  a  2  s . c  o  m*/
    // on regarde si l'un des fichiers a importer est un zip
    for (int i = 0; i < ret.size(); i++) {
        if (ret.get(i).getName().toLowerCase().endsWith(".zip")) {
            if (ret.get(i).exists()) {
                ZipFile zf = null;
                try {
                    zf = new ZipFile(ret.get(i));
                    for (Enumeration<? extends ZipEntry> enumer = zf.entries(); enumer.hasMoreElements();) {
                        ZipEntry ze = enumer.nextElement();
                        if (!ze.isDirectory()) {
                            String fileName = ze.getName();
                            String entryName = fileName.toLowerCase();
                            fileName = fileName.replace(File.pathSeparatorChar, '_')
                                    .replace(File.separatorChar, '_').replace(':', '|').replace('\'', '_')
                                    .replace('/', '_');
                            logger.debug(entryName);
                            if (PJRef.isPJ(ze)) {
                                PJRef pj = new PJRef(ze);
                                File tmpFile = pj.writeTmpFile(FileUtils.getTempDir(), zf);
                                ic.pjs.add(pj);
                                filesToDrop.add(tmpFile);
                            } else if ((entryName.endsWith(extension.toLowerCase())
                                    || entryName.endsWith(".xml")) && !fileName.startsWith("_")) {
                                // on decompresse le fichier dans le
                                // repertoire temporaire, comme ca il sera
                                // supprime en quittant
                                InputStream is = zf.getInputStream(ze);
                                BufferedInputStream bis = new BufferedInputStream(is);
                                File output = new File(FileUtils.getTempDir(), fileName);
                                BufferedOutputStream bos = new BufferedOutputStream(
                                        new FileOutputStream(output));
                                byte[] buffer = new byte[1024];
                                int read = bis.read(buffer);
                                while (read > 0) {
                                    bos.write(buffer, 0, read);
                                    read = bis.read(buffer);
                                }
                                bos.flush();
                                bos.close();
                                bis.close();
                                ic.filesToImport.add(output);
                                filesToDrop.add(output);
                            }
                        }
                    }
                    zf.close();
                } catch (ZipException zEx) {
                    System.out.println(
                            "Le fichier " + ret.get(i).getName() + " n'est pas une archive ZIP valide.");
                } catch (IOException ioEx) {
                    ioEx.printStackTrace();
                } finally {
                    if (zf != null) {
                        try {
                            zf.close();
                        } catch (Throwable t) {
                        }
                    }
                }
            }
        } else if (ret.get(i).getName().toLowerCase().endsWith(".gz")) {
            try {
                String fileName = ret.get(i).getName();
                fileName = fileName.substring(0, fileName.length() - 3);
                File output = new File(FileUtils.getTempDir(), fileName);
                GZIPInputStream gis = new GZIPInputStream(new FileInputStream(ret.get(i)));
                BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(output));
                byte[] buffer = new byte[1024];
                int read = gis.read(buffer);
                while (read > 0) {
                    bos.write(buffer, 0, read);
                    read = gis.read(buffer);
                }
                bos.flush();
                bos.close();
                gis.close();
                ic.filesToImport.add(output);
                filesToDrop.add(output);
            } catch (IOException ioEx) {
                // nothing to do
            }
        } else {
            ic.filesToImport.add(ret.get(i));
            // dans ce cas l, on ne le supprime pas
        }
    }
    return ic;
}

---

From source file:org.opensextant.xtext.collectors.ArchiveNavigator.java

/**
 *
 * @param theFile/*w w  w  .  j a  v a  2  s  .c  o  m*/
 * @param fname
 * @return TAR file path for result.
 * @throws IOException on I/O failure
 */
private File gunzipAsTAR(File theFile, String fname) throws IOException {

    GZIPInputStream gzipInputStream = null;
    OutputStream out = null;

    try {
        gzipInputStream = new GZIPInputStream(new FileInputStream(theFile));
        // TODO:  more testing on this particular case:  gunzip *.gz *.tgz *.tar.gz -- a mix of tar and gunzip
        String outFilename = getWorkingDir() + '/' + fname + ".tar";
        File outFile = new File(outFilename);
        out = new BufferedOutputStream(new FileOutputStream(outFilename));

        byte[] buf = new byte[1024];
        int len;
        while ((len = gzipInputStream.read(buf)) > 0) {
            out.write(buf, 0, len);
        }

        return outFile;
    } finally {
        gzipInputStream.close();
        if (out != null) {
            out.close();
        }
    }
}

---

From source file:agilejson.Base64.java

/**
 * Decodes data from Base64 notation, automatically detecting gzip-compressed
 * data and decompressing it.//www .jav a  2s.co m
 * 
 * @param s the string to decode
 * @param options
 * @see Base64#URL_SAFE
 * @see Base64#ORDERED
 * @return the decoded data
 * @since 1.4
 */
public static byte[] decode(String s, int options) {
    byte[] bytes = null;
    try {
        bytes = s.getBytes(PREFERRED_ENCODING);

    } catch (UnsupportedEncodingException uee) {
        bytes = s.getBytes();
    } // end catch

    // Decode

    bytes = decode(bytes, 0, bytes.length, options);

    // Check to see if it's gzip-compressed
    // GZIP Magic Two-Byte Number: 0x8b1f (35615)

    if (bytes != null && bytes.length >= 4) {
        int head = (bytes[0] & 0xff) | ((bytes[1] << 8) & 0xff00);
        if (GZIPInputStream.GZIP_MAGIC == head) {
            GZIPInputStream gzis = null;
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            try {
                gzis = new GZIPInputStream(new ByteArrayInputStream(bytes));

                byte[] buffer = new byte[2048];
                for (int length = 0; (length = gzis.read(buffer)) >= 0;) {
                    baos.write(buffer, 0, length);
                } // end while: reading input

                // No error? Get new bytes.
                bytes = baos.toByteArray();

            } catch (IOException e) {
                // Just return originally-decoded bytes

            } finally {
                try {
                    baos.close();
                } catch (Exception e) {
                    LOG.error("error closing ByteArrayOutputStream", e);
                }
                if (gzis != null) {
                    try {
                        gzis.close();
                    } catch (Exception e) {
                        LOG.error("error closing GZIPInputStream", e);
                    }
                }
            } // end finally
        } // end if: gzipped
    } // end if: bytes.length >= 2

    return bytes;
}

---

From source file:org.apache.hadoop.hbase.util.Base64.java

/**
 * Decodes data from Base64 notation, automatically detecting gzip-compressed
 * data and decompressing it.//from w ww  .  jav  a 2 s.  c  o  m
 *
 * @param s the string to decode
 * @param options options for decode
 * @see Base64#URL_SAFE
 * @see Base64#ORDERED
 * @return the decoded data
 * @since 1.4
 */
public static byte[] decode(String s, int options) {
    byte[] bytes;
    try {
        bytes = s.getBytes(PREFERRED_ENCODING);

    } catch (UnsupportedEncodingException uee) {
        bytes = s.getBytes();
    } // end catch

    // Decode

    bytes = decode(bytes, 0, bytes.length, options);

    // Check to see if it's gzip-compressed
    // GZIP Magic Two-Byte Number: 0x8b1f (35615)

    if (bytes != null && bytes.length >= 4) {
        int head = (bytes[0] & 0xff) | ((bytes[1] << 8) & 0xff00);
        if (GZIPInputStream.GZIP_MAGIC == head) {
            GZIPInputStream gzis = null;
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            try {
                gzis = new GZIPInputStream(new ByteArrayInputStream(bytes));

                byte[] buffer = new byte[2048];
                for (int length; (length = gzis.read(buffer)) >= 0;) {
                    baos.write(buffer, 0, length);
                } // end while: reading input

                // No error? Get new bytes.
                bytes = baos.toByteArray();

            } catch (IOException e) {
                // Just return originally-decoded bytes

            } finally {
                try {
                    baos.close();
                } catch (Exception e) {
                    LOG.error("error closing ByteArrayOutputStream", e);
                }
                if (gzis != null) {
                    try {
                        gzis.close();
                    } catch (Exception e) {
                        LOG.error("error closing GZIPInputStream", e);
                    }
                }
            } // end finally
        } // end if: gzipped
    } // end if: bytes.length >= 2

    return bytes;
}

---

From source file:org.opensextant.util.TextUtils.java

/**
 *
 * @param gzData//  ww  w.j av a 2s  . c o m
 *            byte array containing gzipped buffer
 * @param charset
 *            character set decoding for text
 * @return buffer of uncompressed, decoded string
 * @throws IOException
 *             on error with decompression or text encoding
 */
public static String uncompress(byte[] gzData, String charset) throws IOException {
    GZIPInputStream gzipInputStream = new GZIPInputStream(new ByteArrayInputStream(gzData));
    ByteArrayOutputStream out = new ByteArrayOutputStream();

    byte[] buf = new byte[ONEKB];
    int len;
    while ((len = gzipInputStream.read(buf)) > 0) {
        out.write(buf, 0, len);
    }

    gzipInputStream.close();
    out.close();

    return new String(out.toByteArray(), charset);
}

---

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