示例#1
0
  public void doGzip(String filePath) {

    FileOutputStream fos = null;
    GZIPOutputStream gos = null;
    FileInputStream fis = null;
    try {
      fos = new FileOutputStream("C:/myGzip.gzip");
      gos = new GZIPOutputStream(fos);
      fis = new FileInputStream(filePath);
      byte[] tmp = new byte[4 * 1024];
      int size = 0;
      while ((size = fis.read(tmp)) != -1) {
        gos.write(tmp, 0, size);
      }
      gos.finish();
      System.out.println("Done with GZip...");
    } catch (IOException e) {

    } finally {
      try {
        if (fis != null) fis.close();
        if (gos != null) gos.close();
      } catch (Exception ex) {
      }
    }
  }
示例#2
0
 @Override
 public void close(TaskAttemptContext context) throws IOException, InterruptedException {
   if (out != null) {
     fout.close();
     out.close();
   }
 }
示例#3
0
  public static MyResponse ok(Object content, boolean isEncryp) {

    MyResponse response = new MyResponse();
    if (isEncryp) {
      response.encryp = true;

      JsonMapper jsonMapper = new JsonMapper();
      String jsonContent = jsonMapper.toJson(content);

      try {
        // gzip压缩
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        GZIPOutputStream gzip = new GZIPOutputStream(out);
        gzip.write(jsonContent.getBytes());
        gzip.close();

        byte[] vi = Cryptos.generateIV();
        byte[] encryByte = Cryptos.aesEncrypt(out.toByteArray(), response.getCurrentToken(), vi);
        String encrypContent = Base64.encodeBase64String(encryByte);
        String viStr = Base64.encodeBase64String(vi);
        response.setContent(viStr + ":" + encrypContent);
      } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      }

    } else {
      response.setContent(content);
    }

    response.setStatus(STATUS_OK);

    return response;
  }
示例#4
0
 /**
  * @param ungzipped the bytes to be gzipped
  * @return gzipped bytes
  */
 private byte[] gzip(byte[] ungzipped) throws IOException {
   final ByteArrayOutputStream bytes = new ByteArrayOutputStream();
   final GZIPOutputStream gzipOutputStream = new GZIPOutputStream(bytes);
   gzipOutputStream.write(ungzipped);
   gzipOutputStream.close();
   return bytes.toByteArray();
 }
示例#5
0
 @Override
 protected void doPost(HttpServletRequest request, HttpServletResponse response)
     throws ServletException, IOException {
   String encoding = request.getHeader("Accept-Encoding");
   boolean supportsGzip = (encoding != null && encoding.toLowerCase().indexOf("gzip") > -1);
   SessionTerminal st = (SessionTerminal) request.getSession(true).getAttribute("terminal");
   if (st == null || st.isClosed()) {
     st = new SessionTerminal();
     request.getSession().setAttribute("terminal", st);
   }
   String str = request.getParameter("k");
   String f = request.getParameter("f");
   String dump = st.handle(str, f != null && f.length() > 0);
   if (dump != null) {
     if (supportsGzip) {
       response.setHeader("Content-Encoding", "gzip");
       response.setHeader("Content-Type", "text/html");
       try {
         GZIPOutputStream gzos = new GZIPOutputStream(response.getOutputStream());
         gzos.write(dump.getBytes());
         gzos.close();
       } catch (IOException ie) {
         // handle the error here
         ie.printStackTrace();
       }
     } else {
       response.getOutputStream().write(dump.getBytes());
     }
   }
 }
示例#6
0
 private static byte[] gzip(String message) throws IOException {
   ByteArrayOutputStream out = new ByteArrayOutputStream();
   GZIPOutputStream stream = new GZIPOutputStream(out);
   stream.write(message.getBytes(CharsetUtil.UTF_8));
   stream.close();
   return out.toByteArray();
 }
 /**
  * Do all required cleanup now that we're finished with the currently-open .tar.gz
  *
  * @exception java.io.IOException
  */
 @Override
 public void finished() throws IOException {
   outputStream.close();
   if (gzipOutputStream != null) {
     gzipOutputStream.close();
   }
 }
示例#8
0
  public static String saveSession(String sessionName) throws IOException {
    StringBuilder builder = new StringBuilder();
    String filename = mStoragePath + '/' + sessionName + ".dss", session;

    builder.append(SESSION_MAGIC + "\n");

    // skip the network target
    builder.append(mTargets.size() - 1).append("\n");
    for (Target target : mTargets) {
      if (target.getType() != Target.Type.NETWORK) target.serialize(builder);
    }
    builder.append(mCurrentTarget).append("\n");

    session = builder.toString();

    FileOutputStream ostream = new FileOutputStream(filename);
    GZIPOutputStream gzip = new GZIPOutputStream(ostream);

    gzip.write(session.getBytes());

    gzip.close();

    mSessionName = sessionName;

    return filename;
  }
  // 生成tar并压缩成tar.gz
  public static void WriteToTarGzip(String folderPath, String targzipFilePath) {
    byte[] buf = new byte[1024]; // 设定读入缓冲区尺寸
    try {
      // 建立压缩文件输出流
      FileOutputStream fout = new FileOutputStream(targzipFilePath);
      // 建立tar压缩输出流
      TarOutputStream tout = new TarOutputStream(fout);
      addFiles(tout, folderPath);
      tout.close();
      fout.close();

      // 建立压缩文件输出流
      FileOutputStream gzFile = new FileOutputStream(targzipFilePath + ".gz");
      // 建立gzip压缩输出流
      GZIPOutputStream gzout = new GZIPOutputStream(gzFile);
      // 打开需压缩文件作为文件输入流
      FileInputStream tarin = new FileInputStream(targzipFilePath); // targzipFilePath是文件全路径
      int len;
      while ((len = tarin.read(buf)) != -1) {
        gzout.write(buf, 0, len);
      }
      gzout.close();
      gzFile.close();
      tarin.close();

    } catch (FileNotFoundException e) {
      System.out.println(e);
    } catch (IOException e) {
      System.out.println(e);
    }

    File tarfile = new File(targzipFilePath);
    tarfile.delete();
  }
示例#10
0
文件: FileIO.java 项目: Rubusch/java
 /**
  * Ctor. The level of zipping is setable using the method ZipOutputStream.setLevel(0 - 9).
  *
  * @param sz The filename.
  */
 public gzip(String sz) {
   GZIPOutputStream gzos = null;
   FileInputStream fis = null;
   try {
     gzos = new GZIPOutputStream(new FileOutputStream(sz + ".gz"));
     fis = new FileInputStream(sz);
     byte[] buffer = new byte[BLOCKSIZE];
     for (int length; (length = fis.read(buffer, 0, BLOCKSIZE)) != -1; )
       gzos.write(buffer, 0, length);
   } catch (IOException e) {
     System.err.println("Error: Couldn't compress " + sz);
   } finally {
     if (fis != null)
       try {
         fis.close();
       } catch (IOException e) {
         e.printStackTrace();
       }
     if (gzos != null)
       try {
         gzos.close();
       } catch (IOException e) {
         e.printStackTrace();
       }
   }
 }
示例#11
0
  public static Result processFile(Path prev, Path cur, Path outDir, int num, int gzipFrom)
      throws IOException {
    Result deltaHashes = new Result();
    Path deltaFile = outDir.resolve(cur.getFileName().toString() + ".bpatch");
    deleteIfExists(deltaFile);
    deltaHashes.path = deltaFile;

    boolean isGzipping = num >= gzipFrom;
    try (HashingOutputStream hashingStream =
        new HashingOutputStream(
            Hashing.sha256(),
            new BufferedOutputStream(newOutputStream(deltaFile, StandardOpenOption.CREATE_NEW)))) {
      GZIPOutputStream zipStream = null;
      GDiffWriter writer;
      if (isGzipping) {
        // Just constructing this object writes to the stream.
        zipStream = new GZIPOutputStream(hashingStream);
        writer = new GDiffWriter(zipStream);
      } else {
        writer = new GDiffWriter(hashingStream);
      }
      Delta delta = new Delta();
      deltaHashes.preHash = sha256(readAllBytes(prev));
      delta.compute(prev.toFile(), cur.toFile(), writer);
      if (isGzipping) zipStream.close();
      deltaHashes.patchHash = hashingStream.hash().asBytes();
      deltaHashes.postHash = sha256(readAllBytes(cur));
    }
    long size = Files.size(deltaFile);
    deltaHashes.patchSize = size;
    println("... done: %s   (%.2fkb) %s", deltaFile, size / 1024.0, isGzipping ? "zipped" : "");
    return deltaHashes;
  }
示例#12
0
    InMemorySourceRepository(@WillClose ZipInputStream in) throws IOException {
      try {
        while (true) {

          ZipEntry e = in.getNextEntry();
          if (e == null) break;
          if (!e.isDirectory()) {
            String name = e.getName();
            long size = e.getSize();

            if (size > Integer.MAX_VALUE)
              throw new IOException(name + " is too big at " + size + " bytes");
            ByteArrayOutputStream out;
            if (size <= 0) out = new ByteArrayOutputStream();
            else out = new ByteArrayOutputStream((int) size);
            GZIPOutputStream gOut = new GZIPOutputStream(out);
            IO.copy(in, gOut);
            gOut.close();
            byte data[] = out.toByteArray();
            contents.put(name, data);
            lastModified.put(name, e.getTime());
          }
          in.closeEntry();
        }
      } finally {
        Util.closeSilently(in);
      }
    }
示例#13
0
  /**
   * Submit an HTTP post to the given url, sending the data specified
   *
   * @param url url to post to
   * @param length number of bytes in the dataToSend to, er, send
   * @param dataToSend stream of bytes to be sent
   */
  public static boolean postData(URL url, long length, InputStream dataToSend) {
    try {
      HttpURLConnection con = (HttpURLConnection) url.openConnection();
      con.setDoInput(true);
      con.setDoOutput(true);
      con.setUseCaches(false);
      con.setRequestMethod("POST");
      con.setRequestProperty("Content-length", "" + length);

      OutputStream out = con.getOutputStream();
      byte buf[] = new byte[1 * 1024];
      int read;
      long sent = 0;
      GZIPOutputStream zipOut = new GZIPOutputStream(out);
      while ((read = dataToSend.read(buf)) != -1) {
        zipOut.write(buf, 0, read);
        sent += read;
        if (sent >= length) break;
      }

      zipOut.flush();
      zipOut.finish();
      zipOut.close();
      out.close();

      int rv = con.getResponseCode();
      _log.debug("Posted " + sent + " bytes: " + rv);
      return length == sent;
    } catch (IOException ioe) {
      _log.error("Error posting the data", ioe);
      return false;
    }
  }
示例#14
0
 protected void sendResponseAppropriately(
     CallingContext context, HttpServletRequest req, HttpServletResponse resp, String response)
     throws IOException {
   String encoding = req.getHeader("Accept-Encoding");
   resp.setContentType("application/json");
   if (encoding != null && encoding.indexOf("gzip") >= 0) {
     resp.setHeader("Content-Encoding", "gzip");
     OutputStream o = null;
     GZIPOutputStream gz = null;
     try {
       o = resp.getOutputStream();
       gz = new GZIPOutputStream(o);
       gz.write(response.getBytes("UTF-8"));
     } finally {
       if (gz != null) {
         gz.close();
       }
       if (o != null) {
         o.close();
       }
     }
   } else {
     resp.getWriter().append(response);
     resp.flushBuffer();
   }
 }
示例#15
0
  /** Returns an gzipped copy of the input array. */
  public static final byte[] zip(byte[] in) {
    try {
      // compress using GZIPOutputStream
      ByteArrayOutputStream byteOut =
          new ByteArrayOutputStream(in.length / EXPECTED_COMPRESSION_RATIO);

      GZIPOutputStream outStream = new GZIPOutputStream(byteOut);

      try {
        outStream.write(in);
      } catch (Exception e) {
        e.printStackTrace(LogUtil.getWarnStream(LOG));
      }

      try {
        outStream.close();
      } catch (IOException e) {
        e.printStackTrace(LogUtil.getWarnStream(LOG));
      }

      return byteOut.toByteArray();

    } catch (IOException e) {
      e.printStackTrace(LogUtil.getWarnStream(LOG));
      return null;
    }
  }
  protected void makeGzip(File file) throws IOException {
    BufferedInputStream bin = null;
    GZIPOutputStream gzos = null;

    try {

      FileInputStream fin = new FileInputStream(file);
      bin = new BufferedInputStream(fin);
      FileOutputStream fos = new FileOutputStream(file + ".gz");
      gzos = new GZIPOutputStream(fos);
      byte[] buf = new byte[1024];
      int len;
      while ((len = bin.read(buf)) > -1) {
        gzos.write(buf, 0, len);
      }
    } catch (IOException e) {
      LOGGER.fatal("Error while gzipping!", e);
    } finally {
      if (bin != null) {
        bin.close();
      }
      if (gzos != null) {

        gzos.close();
      }
    }
  }
  public byte[] compress(byte[] buffer) throws IOException {
    ByteArrayOutputStream arrayOutputStream = new ByteArrayOutputStream();
    GZIPOutputStream gzip = new GZIPOutputStream(arrayOutputStream);
    ByteArrayInputStream inputStream = new ByteArrayInputStream(buffer);

    try {
      byte[] buf = new byte[unit];
      int len = 0;
      while ((len = inputStream.read(buf)) != -1) {
        gzip.write(buf, 0, len);
      }

      gzip.finish();

      byte[] result = arrayOutputStream.toByteArray();

      return result;
    } catch (IOException e) {
      throw e;
    } finally {
      gzip.close();
      arrayOutputStream.close();
      inputStream.close();
    }
  }
 @Override
 public void run() {
   DataInputStream in = new DataInputStream(inStream);
   try {
     GZIPOutputStream out = new GZIPOutputStream(outStream);
     byte[] buf = new byte[256];
     int numbercount = 0;
     while (!suspending && !done) {
       numbercount = in.read(buf);
       if (numbercount == -1) {
         done = true;
         break;
       }
       out.write(buf, 0, numbercount);
       out.flush();
       try {
         Thread.sleep(9000);
       } catch (InterruptedException e) {
         e.printStackTrace();
       }
     }
     out.close();
   } catch (IOException e) {
     e.printStackTrace();
   }
   inStream.closeStream();
   inStream.setMigrated(true);
   outStream.closeStream();
   outStream.setMigrated(true);
   suspending = false;
 }
  // adds file to S3 Data store or offline cache (if working offline)
  public String addPointSet(File pointSetFile, String pointSetId) throws IOException {
    if (pointSetId == null) throw new NullPointerException("null point set id");

    File renamedPointSetFile = new File(POINT_DIR, pointSetId + ".json");

    if (renamedPointSetFile.exists()) return pointSetId;

    FileUtils.copyFile(pointSetFile, renamedPointSetFile);

    if (!this.workOffline) {
      // only upload if it doesn't exist
      try {
        s3.getObjectMetadata(pointsetBucket, pointSetId + ".json.gz");
      } catch (AmazonServiceException e) {
        // gzip compression in storage, not because we're worried about file size but to speed file
        // transfer
        FileInputStream fis = new FileInputStream(pointSetFile);
        File tempFile = File.createTempFile(pointSetId, ".json.gz");
        FileOutputStream fos = new FileOutputStream(tempFile);
        GZIPOutputStream gos = new GZIPOutputStream(fos);

        try {
          ByteStreams.copy(fis, gos);
        } finally {
          gos.close();
          fis.close();
        }

        s3.putObject(pointsetBucket, pointSetId + ".json.gz", tempFile);
        tempFile.delete();
      }
    }

    return pointSetId;
  }
示例#20
0
  @Override
  public byte[] packLog(long index, int itemsToPack) {
    if (index < this.startIndex.get() || index >= this.nextIndex.get()) {
      throw new IllegalArgumentException("index out of range");
    }

    try {
      ByteArrayOutputStream memoryStream = new ByteArrayOutputStream();
      GZIPOutputStream gzipStream = new GZIPOutputStream(memoryStream);
      PreparedStatement ps = this.connection.prepareStatement(SELECT_RANGE_SQL);
      ps.setLong(1, index);
      ps.setLong(2, index + itemsToPack);
      ResultSet rs = ps.executeQuery();
      while (rs.next()) {
        byte[] value = rs.getBytes(4);
        int size = value.length + Long.BYTES + 1 + Integer.BYTES;
        ByteBuffer buffer = ByteBuffer.allocate(size);
        buffer.putInt(size);
        buffer.putLong(rs.getLong(2));
        buffer.put(rs.getByte(3));
        buffer.put(value);
        gzipStream.write(buffer.array());
      }

      rs.close();
      gzipStream.flush();
      memoryStream.flush();
      gzipStream.close();
      return memoryStream.toByteArray();
    } catch (Throwable error) {
      this.logger.error("failed to pack log entries", error);
      throw new RuntimeException("log store error", error);
    }
  }
示例#21
0
  // 测试压缩
  // @Test
  public void testCompress() throws Exception {

    GZIPOutputStream gOut = new GZIPOutputStream(new FileOutputStream(destDirectory));
    FileInputStream in = new FileInputStream(sourceTar);
    IOUtils.copy(in, gOut);
    gOut.close();
    in.close();
  }
示例#22
0
  public byte[] gzip(byte b[]) throws IOException {

    ByteArrayOutputStream bout = new ByteArrayOutputStream();
    GZIPOutputStream gout = new GZIPOutputStream(bout);
    gout.write(b);
    gout.close();
    return bout.toByteArray();
  }
  // 不能对每层都包含文件和目录的多层次目录结构打包
  public static void compressedFiles_Gzip(String folderPath, String targzipFilePath) {
    File srcPath = new File(folderPath);
    int length = srcPath.listFiles().length;
    byte[] buf = new byte[1024]; // 设定读入缓冲区尺寸
    File[] files = srcPath.listFiles();
    try {
      File targetFile = new File(targzipFilePath);
      File parent = targetFile.getParentFile();
      if (!parent.exists()) {
        parent.mkdirs();
      }
      // 建立压缩文件输出流
      FileOutputStream fout = new FileOutputStream(targetFile);
      // 建立tar压缩输出流
      TarOutputStream tout = new TarOutputStream(fout);
      for (int i = 0; i < length; i++) {
        String filename = srcPath.getPath() + File.separator + files[i].getName();
        // 打开需压缩文件作为文件输入流
        FileInputStream fin = new FileInputStream(filename); // filename是文件全路径
        TarEntry tarEn = new TarEntry(files[i]); // 此处必须使用new
        // TarEntry(File
        // file);
        // tarEn.setName(files[i].getName());
        // //此处需重置名称,默认是带全路径的,否则打包后会带全路径
        tout.putNextEntry(tarEn);
        int num;
        while ((num = fin.read(buf)) != -1) {
          tout.write(buf, 0, num);
        }
        tout.closeEntry();
        fin.close();
      }

      tout.close();
      fout.close();

      // 建立压缩文件输出流
      FileOutputStream gzFile = new FileOutputStream(targzipFilePath + ".gz");
      // 建立gzip压缩输出流
      GZIPOutputStream gzout = new GZIPOutputStream(gzFile);
      // 打开需压缩文件作为文件输入流
      FileInputStream tarin = new FileInputStream(targzipFilePath); // targzipFilePath是文件全路径
      int len;
      while ((len = tarin.read(buf)) != -1) {
        gzout.write(buf, 0, len);
      }
      gzout.close();
      gzFile.close();
      tarin.close();
      // 因为只要tar.gz文件,所以删除.tar文件
      del(targzipFilePath);
    } catch (FileNotFoundException e) {
      System.out.println(e);
    } catch (IOException e) {
      System.out.println(e);
    }
  }
 /**
  * End the current request. It is acceptable to write extra bytes using buffer.doWrite during the
  * execution of this method.
  */
 @Override
 public long end() throws IOException {
   if (compressionStream == null) {
     compressionStream = new FlushableGZIPOutputStream(fakeOutputStream);
   }
   compressionStream.finish();
   compressionStream.close();
   return ((OutputFilter) buffer).end();
 }
示例#25
0
    @JRubyMethod(name = "close")
    public IRubyObject close() throws IOException {
      if (!closed) {
        io.close();
      }
      this.closed = true;

      return getRuntime().getNil();
    }
示例#26
0
 // http://stackoverflow.com/questions/6717165/how-can-i-compress-a-string-using-gzipoutputstream-and-vice-versa
 public static byte[] compress(String string) throws IOException {
   ByteArrayOutputStream os = new ByteArrayOutputStream(string.length());
   GZIPOutputStream gos = new GZIPOutputStream(os);
   gos.write(string.getBytes());
   gos.close();
   byte[] compressed = os.toByteArray();
   os.close();
   return compressed;
 }
示例#27
0
  public static InputStream gzip(final InputStream inputStream) throws IOException {
    Assert.notNull(inputStream, "inputStream");
    InputOutputStream inputOutputStream = new InputOutputStream();
    GZIPOutputStream gzipOutputStream = new GZIPOutputStream(inputOutputStream);
    IOUtils.copy(inputStream, gzipOutputStream);

    gzipOutputStream.close();
    return inputOutputStream.getInputStream();
  }
示例#28
0
  /**
   * Serializes an object and returns the Base64-encoded version of that serialized object. If the
   * object cannot be serialized or there is another error, the method will return <tt>null</tt>.
   *
   * <p>Valid options:
   *
   * <pre>
   *   GZIP: gzip-compresses object before encoding it.
   *   DONT_BREAK_LINES: don't break lines at 76 characters
   *     <i>Note: Technically, this makes your encoding non-compliant.</i>
   * </pre>
   *
   * <p>Example: <code>encodeObject( myObj, Base64.GZIP )</code> or
   *
   * <p>Example: <code>encodeObject( myObj, Base64.GZIP | Base64.DONT_BREAK_LINES )</code>
   *
   * @param serializableObject The object to encode
   * @param options Specified options
   * @return The Base64-encoded object
   * @see Base64#GZIP
   * @see Base64#DONT_BREAK_LINES
   * @since 2.0
   */
  public static String encodeObject(java.io.Serializable serializableObject, int options) {
    // Streams
    java.io.ByteArrayOutputStream baos = null;
    java.io.OutputStream b64os = null;
    java.io.ObjectOutputStream oos = null;
    java.util.zip.GZIPOutputStream gzos = null;

    // Isolate options
    int gzip = (options & GZIP);
    int dontBreakLines = (options & DONT_BREAK_LINES);

    try {
      // ObjectOutputStream -> (GZIP) -> Base64 -> ByteArrayOutputStream
      baos = new java.io.ByteArrayOutputStream();
      b64os = new Base64.OutputStream(baos, ENCODE | dontBreakLines);

      // GZip?
      if (gzip == GZIP) {
        gzos = new java.util.zip.GZIPOutputStream(b64os);
        oos = new java.io.ObjectOutputStream(gzos);
      } // end if: gzip
      else oos = new java.io.ObjectOutputStream(b64os);

      oos.writeObject(serializableObject);
    } // end try
    catch (java.io.IOException e) {
      e.printStackTrace();
      return null;
    } // end catch
    finally {
      try {
        oos.close();
      } catch (Exception e) {
      }
      try {
        gzos.close();
      } catch (Exception e) {
      }
      try {
        b64os.close();
      } catch (Exception e) {
      }
      try {
        baos.close();
      } catch (Exception e) {
      }
    } // end finally

    // Return value according to relevant encoding.
    try {
      return new String(baos.toByteArray(), PREFERRED_ENCODING);
    } // end try
    catch (java.io.UnsupportedEncodingException uue) {
      return new String(baos.toByteArray());
    } // end catch
  } // end encode
示例#29
0
  public byte[] compresBytesToGzip(byte[] bytes) throws IOException {

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    GZIPOutputStream gzos = new GZIPOutputStream(baos);

    gzos.write(bytes, 0, bytes.length);
    gzos.close();

    return baos.toByteArray();
  }
示例#30
0
 private ByteString gzip(final String s) throws IOException {
   final ByteArrayOutputStream buf = new ByteArrayOutputStream();
   final GZIPOutputStream out = new GZIPOutputStream(buf);
   try {
     out.write(s.getBytes(StandardCharsets.UTF_8));
   } finally {
     out.close();
   }
   return ByteString.fromArray(buf.toByteArray());
 }