Java Code Examples for java.util.zip.DeflaterOutputStream#close()
The following examples show how to use
java.util.zip.DeflaterOutputStream#close() .
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Example 1
Source File: StandardEncrypter.java From fastods with GNU General Public License v3.0 | 6 votes |
/** * Deflate as LibreOffice. * * @param data the data to DEFLATE * @return the DEFLATEd data * @throws IOException if a I/O error occurs */ public byte[] compress(final byte[] data) throws IOException { final ByteArrayOutputStream os = new ByteArrayOutputStream(); final Deflater deflater = new Deflater(Deflater.BEST_COMPRESSION, true); final DeflaterOutputStream dos = new DeflaterOutputStream(os, deflater); final InputStream is = new ByteArrayInputStream(data); final byte[] buffer = new byte[BUFFER_SIZE]; int count = is.read(buffer); while (count != -1) { dos.write(buffer, 0, count); count = is.read(buffer); } dos.close(); return os.toByteArray(); }
Example 2
Source File: IDATChunk.java From BiglyBT with GNU General Public License v2.0 | 6 votes |
@Override public byte[] getContentPayload() { byte[] payload = new byte[(width+1)*height]; for(int i = 0; i<height ; i++) { int offset = i * (width+1); //NO filter on this line payload[offset++] = 0; for(int j = 0 ; j<width ; j++) { payload[offset+j] = (byte)(127); } } Deflater deflater = new Deflater( Deflater.DEFAULT_COMPRESSION ); ByteArrayOutputStream outBytes = new ByteArrayOutputStream((width+1)*height); DeflaterOutputStream compBytes = new DeflaterOutputStream( outBytes, deflater ); try { compBytes.write(payload); compBytes.close(); } catch(Exception e) { e.printStackTrace(); } byte[] compPayload = outBytes.toByteArray(); return compPayload; }
Example 3
Source File: UtilAll.java From DDMQ with Apache License 2.0 | 6 votes |
public static byte[] compress(final byte[] src, final int level) throws IOException { byte[] result = src; ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(src.length); java.util.zip.Deflater defeater = new java.util.zip.Deflater(level); DeflaterOutputStream deflaterOutputStream = new DeflaterOutputStream(byteArrayOutputStream, defeater); try { deflaterOutputStream.write(src); deflaterOutputStream.finish(); deflaterOutputStream.close(); result = byteArrayOutputStream.toByteArray(); } catch (IOException e) { defeater.end(); throw e; } finally { try { byteArrayOutputStream.close(); } catch (IOException ignored) { } defeater.end(); } return result; }
Example 4
Source File: UtilAll.java From rocketmq with Apache License 2.0 | 6 votes |
public static byte[] compress(final byte[] src, final int level) throws IOException { byte[] result = src; ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(src.length); java.util.zip.Deflater defeater = new java.util.zip.Deflater(level); DeflaterOutputStream deflaterOutputStream = new DeflaterOutputStream(byteArrayOutputStream, defeater); try { deflaterOutputStream.write(src); deflaterOutputStream.finish(); deflaterOutputStream.close(); result = byteArrayOutputStream.toByteArray(); } catch (IOException e) { defeater.end(); throw e; } finally { try { byteArrayOutputStream.close(); } catch (IOException ignored) { } defeater.end(); } return result; }
Example 5
Source File: MixAll.java From jmqtt with Apache License 2.0 | 6 votes |
public static byte[] compress(final byte[] src,final int level) throws IOException { byte[] result = src; ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(src.length); Deflater deflater = new Deflater(level); DeflaterOutputStream deflaterOutputStream = new DeflaterOutputStream(byteArrayOutputStream,deflater); try{ deflaterOutputStream.write(src); deflaterOutputStream.flush(); deflaterOutputStream.close(); result = byteArrayOutputStream.toByteArray(); }catch (IOException e){ deflater.end(); throw e; }finally { try { byteArrayOutputStream.close(); } catch (IOException ignored) { } deflater.end(); } return result; }
Example 6
Source File: UtilAll.java From DDMQ with Apache License 2.0 | 6 votes |
public static byte[] compress(final byte[] src, final int level) throws IOException { byte[] result = src; ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(src.length); java.util.zip.Deflater defeater = new java.util.zip.Deflater(level); DeflaterOutputStream deflaterOutputStream = new DeflaterOutputStream(byteArrayOutputStream, defeater); try { deflaterOutputStream.write(src); deflaterOutputStream.finish(); deflaterOutputStream.close(); result = byteArrayOutputStream.toByteArray(); } catch (IOException e) { defeater.end(); throw e; } finally { try { byteArrayOutputStream.close(); } catch (IOException ignored) { } defeater.end(); } return result; }
Example 7
Source File: DeflateUncompressorTest.java From archive-patcher with Apache License 2.0 | 6 votes |
@Test public void testNowrap() throws IOException { // Recompress with nowrap set to false. Deflater deflater = new Deflater(Deflater.DEFAULT_COMPRESSION, false /* nowrap */); ByteArrayOutputStream compressedContentBuffer = new ByteArrayOutputStream(); DeflaterOutputStream deflateOut = new DeflaterOutputStream(compressedContentBuffer, deflater); deflateOut.write(CONTENT); deflateOut.finish(); deflateOut.close(); deflater.end(); compressedContent = compressedContentBuffer.toByteArray(); compressedContentIn = new ByteArrayInputStream(compressedContent); // Now expect wrapped content in the uncompressor, and uncompressing should "just work". uncompressor.setNowrap(false); uncompressor.uncompress(compressedContentIn, uncompressedContentOut); assertTrue(Arrays.equals(CONTENT, uncompressedContentOut.toByteArray())); }
Example 8
Source File: UtilAll.java From rocketmq-read with Apache License 2.0 | 6 votes |
/** * 压缩 * @param src ; * @param level ; * @return ; * @throws IOException ; */ public static byte[] compress(final byte[] src, final int level) throws IOException { byte[] result = src; ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(src.length); java.util.zip.Deflater defeater = new java.util.zip.Deflater(level); DeflaterOutputStream deflaterOutputStream = new DeflaterOutputStream(byteArrayOutputStream, defeater); try { deflaterOutputStream.write(src); deflaterOutputStream.finish(); deflaterOutputStream.close(); result = byteArrayOutputStream.toByteArray(); } catch (IOException e) { defeater.end(); throw e; } finally { try { byteArrayOutputStream.close(); } catch (IOException ignored) { } defeater.end(); } return result; }
Example 9
Source File: PNGImageWriter.java From jdk8u-jdk with GNU General Public License v2.0 | 5 votes |
private byte[] deflate(byte[] b) throws IOException { ByteArrayOutputStream baos = new ByteArrayOutputStream(); DeflaterOutputStream dos = new DeflaterOutputStream(baos); dos.write(b); dos.close(); return baos.toByteArray(); }
Example 10
Source File: DigestUtils.java From JobX with Apache License 2.0 | 5 votes |
public static String compressData(String data) { try { ByteArrayOutputStream bos = new ByteArrayOutputStream(); DeflaterOutputStream zos = new DeflaterOutputStream(bos); zos.write(data.getBytes()); zos.close(); return new String(getenBASE64inCodec(bos.toByteArray())); } catch (Exception ex) { ex.printStackTrace(); return "ZIP_ERR"; } }
Example 11
Source File: CdmrGridController.java From tds with BSD 3-Clause "New" or "Revised" License | 5 votes |
private long sendData(Array data, OutputStream out, boolean deflate) throws IOException, InvalidRangeException { // length of data uncompressed long uncompressedLength = data.getSizeBytes(); long size = 0; if (deflate) { // write to an internal buffer, so we can find out the size ByteArrayOutputStream bout = new ByteArrayOutputStream(); DeflaterOutputStream dout = new DeflaterOutputStream(bout); IospHelper.copyToOutputStream(data, dout); // write internal buffer to output stream dout.close(); int deflatedSize = bout.size(); size += NcStream.writeVInt(out, deflatedSize); bout.writeTo(out); size += deflatedSize; float ratio = ((float) uncompressedLength) / deflatedSize; if (showRes) System.out.printf(" org/compress= %d/%d = %f%n", uncompressedLength, deflatedSize, ratio); } else { size += NcStream.writeVInt(out, (int) uncompressedLength); size += IospHelper.copyToOutputStream(data, out); } return size; }
Example 12
Source File: DigestUtils.java From opencron with Apache License 2.0 | 5 votes |
public static String compressData(String data, String charset) { try { ByteArrayOutputStream bos = new ByteArrayOutputStream(); DeflaterOutputStream zos = new DeflaterOutputStream(bos); zos.write(data.getBytes()); zos.close(); return new String(getenBASE64inCodec(bos.toByteArray(), charset)); } catch (Exception ex) { ex.printStackTrace(); return "ZIP_ERR"; } }
Example 13
Source File: ReadParams.java From jdk8u_jdk with GNU General Public License v2.0 | 4 votes |
public static void main(String args[]) throws Exception{ /* initialise stuff */ File fn = new File("x.ReadBounds"); FileOutputStream fout = new FileOutputStream(fn); for (int i = 0; i < 32; i++) { fout.write(i); } fout.close(); byte b[] = new byte[64]; for(int i = 0; i < 64; i++) { b[i] = 1; } /* test all input streams */ FileInputStream fis = new FileInputStream(fn); doTest(fis); doTest1(fis); fis.close(); BufferedInputStream bis = new BufferedInputStream(new MyInputStream(1024)); doTest(bis); doTest1(bis); bis.close(); ByteArrayInputStream bais = new ByteArrayInputStream(b); doTest(bais); doTest1(bais); bais.close(); FileOutputStream fos = new FileOutputStream(fn); ObjectOutputStream oos = new ObjectOutputStream(fos); oos.writeInt(12345); oos.writeObject("Today"); oos.writeObject(new Integer(32)); oos.close(); ObjectInputStream ois = new ObjectInputStream(new FileInputStream(fn)); doTest(ois); doTest1(ois); ois.close(); DataInputStream dis = new DataInputStream(new MyInputStream(1024)); doTest(dis); doTest1(dis); dis.close(); LineNumberInputStream lis = new LineNumberInputStream(new MyInputStream(1024)); doTest(lis); doTest1(lis); lis.close(); PipedOutputStream pos = new PipedOutputStream(); PipedInputStream pis = new PipedInputStream(); pos.connect(pis); pos.write(b, 0, 64); doTest(pis); doTest1(pis); pis.close(); PushbackInputStream pbis = new PushbackInputStream(new MyInputStream(1024)); doTest(pbis); doTest1(pbis); pbis.close(); StringBufferInputStream sbis = new StringBufferInputStream(new String(b)); doTest(sbis); doTest1(sbis); sbis.close(); SequenceInputStream sis = new SequenceInputStream(new MyInputStream(1024), new MyInputStream(1024)); doTest(sis); doTest1(sis); sis.close(); ZipInputStream zis = new ZipInputStream(new FileInputStream(fn)); doTest(zis); doTest1(zis); zis.close(); byte[] data = new byte[256]; ByteArrayOutputStream bos = new ByteArrayOutputStream(); DeflaterOutputStream dos = new DeflaterOutputStream(bos); dos.write(data, 0, data.length); dos.close(); InflaterInputStream ifs = new InflaterInputStream (new ByteArrayInputStream(bos.toByteArray())); doTest(ifs); doTest1(ifs); ifs.close(); /* cleanup */ fn.delete(); }
Example 14
Source File: WriteParams.java From TencentKona-8 with GNU General Public License v2.0 | 4 votes |
public static void main(String args[]) throws Exception{ /* initialise stuff here */ File fn = new File("x.WriteBounds"); FileOutputStream fout = new FileOutputStream(fn); for (int i = 0; i < 32; i++) { fout.write(i); } fout.close(); byte b[] = new byte[64]; for(int i = 0; i < 64; i++) { b[i] = 1; } /* test for different output streams */ FileOutputStream fos = new FileOutputStream(fn); doTest(fos); doTest1(fos); fos.close(); ObjectOutputStream oos = new ObjectOutputStream(new MyOutputStream()); doTest(oos); doTest1(oos); oos.close(); BufferedOutputStream bos = new BufferedOutputStream(new MyOutputStream()); doTest(bos); doTest1(bos); bos.close(); ByteArrayOutputStream baos = new ByteArrayOutputStream(); doTest(baos); doTest1(baos); baos.close(); DataOutputStream dos = new DataOutputStream(new MyOutputStream()); doTest(dos); doTest1(dos); dos.close(); PipedInputStream pis = new PipedInputStream(); PipedOutputStream pos = new PipedOutputStream(); pos.connect(pis); doTest(pos); doTest1(pos); pos.close(); DeflaterOutputStream dfos = new DeflaterOutputStream(new MyOutputStream()); doTest(dfos); doTest1(dfos); dfos.close(); /* cleanup */ fn.delete(); }
Example 15
Source File: ReadParams.java From TencentKona-8 with GNU General Public License v2.0 | 4 votes |
public static void main(String args[]) throws Exception{ /* initialise stuff */ File fn = new File("x.ReadBounds"); FileOutputStream fout = new FileOutputStream(fn); for (int i = 0; i < 32; i++) { fout.write(i); } fout.close(); byte b[] = new byte[64]; for(int i = 0; i < 64; i++) { b[i] = 1; } /* test all input streams */ FileInputStream fis = new FileInputStream(fn); doTest(fis); doTest1(fis); fis.close(); BufferedInputStream bis = new BufferedInputStream(new MyInputStream(1024)); doTest(bis); doTest1(bis); bis.close(); ByteArrayInputStream bais = new ByteArrayInputStream(b); doTest(bais); doTest1(bais); bais.close(); FileOutputStream fos = new FileOutputStream(fn); ObjectOutputStream oos = new ObjectOutputStream(fos); oos.writeInt(12345); oos.writeObject("Today"); oos.writeObject(new Integer(32)); oos.close(); ObjectInputStream ois = new ObjectInputStream(new FileInputStream(fn)); doTest(ois); doTest1(ois); ois.close(); DataInputStream dis = new DataInputStream(new MyInputStream(1024)); doTest(dis); doTest1(dis); dis.close(); LineNumberInputStream lis = new LineNumberInputStream(new MyInputStream(1024)); doTest(lis); doTest1(lis); lis.close(); PipedOutputStream pos = new PipedOutputStream(); PipedInputStream pis = new PipedInputStream(); pos.connect(pis); pos.write(b, 0, 64); doTest(pis); doTest1(pis); pis.close(); PushbackInputStream pbis = new PushbackInputStream(new MyInputStream(1024)); doTest(pbis); doTest1(pbis); pbis.close(); StringBufferInputStream sbis = new StringBufferInputStream(new String(b)); doTest(sbis); doTest1(sbis); sbis.close(); SequenceInputStream sis = new SequenceInputStream(new MyInputStream(1024), new MyInputStream(1024)); doTest(sis); doTest1(sis); sis.close(); ZipInputStream zis = new ZipInputStream(new FileInputStream(fn)); doTest(zis); doTest1(zis); zis.close(); byte[] data = new byte[256]; ByteArrayOutputStream bos = new ByteArrayOutputStream(); DeflaterOutputStream dos = new DeflaterOutputStream(bos); dos.write(data, 0, data.length); dos.close(); InflaterInputStream ifs = new InflaterInputStream (new ByteArrayInputStream(bos.toByteArray())); doTest(ifs); doTest1(ifs); ifs.close(); /* cleanup */ fn.delete(); }
Example 16
Source File: PdfStream.java From itext2 with GNU Lesser General Public License v3.0 | 4 votes |
/** * Compresses the stream. * @param compressionLevel the compression level (0 = best speed, 9 = best compression, -1 is default) * @since 2.1.3 */ public void flateCompress(int compressionLevel) { if (!Document.compress) return; // check if the flateCompress-method has already been if (compressed) { return; } this.compressionLevel = compressionLevel; if (inputStream != null) { compressed = true; return; } // check if a filter already exists PdfObject filter = PdfReader.getPdfObject(get(PdfName.FILTER)); if (filter != null) { if (filter.isName()) { if (PdfName.FLATEDECODE.equals(filter)) return; } else if (filter.isArray()) { if (((PdfArray) filter).contains(PdfName.FLATEDECODE)) return; } else { throw new RuntimeException("Stream could not be compressed: filter is not a name or array."); } } try { // compress ByteArrayOutputStream stream = new ByteArrayOutputStream(); Deflater deflater = new Deflater(compressionLevel); DeflaterOutputStream zip = new DeflaterOutputStream(stream, deflater); if (streamBytes != null) streamBytes.writeTo(zip); else zip.write(bytes); zip.close(); deflater.end(); // update the object streamBytes = stream; bytes = null; put(PdfName.LENGTH, new PdfNumber(streamBytes.size())); if (filter == null) { put(PdfName.FILTER, PdfName.FLATEDECODE); } else { PdfArray filters = new PdfArray(filter); filters.add(PdfName.FLATEDECODE); put(PdfName.FILTER, filters); } compressed = true; } catch(IOException ioe) { throw new ExceptionConverter(ioe); } }
Example 17
Source File: WriteParams.java From openjdk-8 with GNU General Public License v2.0 | 4 votes |
public static void main(String args[]) throws Exception{ /* initialise stuff here */ File fn = new File("x.WriteBounds"); FileOutputStream fout = new FileOutputStream(fn); for (int i = 0; i < 32; i++) { fout.write(i); } fout.close(); byte b[] = new byte[64]; for(int i = 0; i < 64; i++) { b[i] = 1; } /* test for different output streams */ FileOutputStream fos = new FileOutputStream(fn); doTest(fos); doTest1(fos); fos.close(); ObjectOutputStream oos = new ObjectOutputStream(new MyOutputStream()); doTest(oos); doTest1(oos); oos.close(); BufferedOutputStream bos = new BufferedOutputStream(new MyOutputStream()); doTest(bos); doTest1(bos); bos.close(); ByteArrayOutputStream baos = new ByteArrayOutputStream(); doTest(baos); doTest1(baos); baos.close(); DataOutputStream dos = new DataOutputStream(new MyOutputStream()); doTest(dos); doTest1(dos); dos.close(); PipedInputStream pis = new PipedInputStream(); PipedOutputStream pos = new PipedOutputStream(); pos.connect(pis); doTest(pos); doTest1(pos); pos.close(); DeflaterOutputStream dfos = new DeflaterOutputStream(new MyOutputStream()); doTest(dfos); doTest1(dfos); dfos.close(); /* cleanup */ fn.delete(); }
Example 18
Source File: WriteParams.java From jdk8u60 with GNU General Public License v2.0 | 4 votes |
public static void main(String args[]) throws Exception{ /* initialise stuff here */ File fn = new File("x.WriteBounds"); FileOutputStream fout = new FileOutputStream(fn); for (int i = 0; i < 32; i++) { fout.write(i); } fout.close(); byte b[] = new byte[64]; for(int i = 0; i < 64; i++) { b[i] = 1; } /* test for different output streams */ FileOutputStream fos = new FileOutputStream(fn); doTest(fos); doTest1(fos); fos.close(); ObjectOutputStream oos = new ObjectOutputStream(new MyOutputStream()); doTest(oos); doTest1(oos); oos.close(); BufferedOutputStream bos = new BufferedOutputStream(new MyOutputStream()); doTest(bos); doTest1(bos); bos.close(); ByteArrayOutputStream baos = new ByteArrayOutputStream(); doTest(baos); doTest1(baos); baos.close(); DataOutputStream dos = new DataOutputStream(new MyOutputStream()); doTest(dos); doTest1(dos); dos.close(); PipedInputStream pis = new PipedInputStream(); PipedOutputStream pos = new PipedOutputStream(); pos.connect(pis); doTest(pos); doTest1(pos); pos.close(); DeflaterOutputStream dfos = new DeflaterOutputStream(new MyOutputStream()); doTest(dfos); doTest1(dfos); dfos.close(); /* cleanup */ fn.delete(); }
Example 19
Source File: WriteParams.java From jdk8u-jdk with GNU General Public License v2.0 | 4 votes |
public static void main(String args[]) throws Exception{ /* initialise stuff here */ File fn = new File("x.WriteBounds"); FileOutputStream fout = new FileOutputStream(fn); for (int i = 0; i < 32; i++) { fout.write(i); } fout.close(); byte b[] = new byte[64]; for(int i = 0; i < 64; i++) { b[i] = 1; } /* test for different output streams */ FileOutputStream fos = new FileOutputStream(fn); doTest(fos); doTest1(fos); fos.close(); ObjectOutputStream oos = new ObjectOutputStream(new MyOutputStream()); doTest(oos); doTest1(oos); oos.close(); BufferedOutputStream bos = new BufferedOutputStream(new MyOutputStream()); doTest(bos); doTest1(bos); bos.close(); ByteArrayOutputStream baos = new ByteArrayOutputStream(); doTest(baos); doTest1(baos); baos.close(); DataOutputStream dos = new DataOutputStream(new MyOutputStream()); doTest(dos); doTest1(dos); dos.close(); PipedInputStream pis = new PipedInputStream(); PipedOutputStream pos = new PipedOutputStream(); pos.connect(pis); doTest(pos); doTest1(pos); pos.close(); DeflaterOutputStream dfos = new DeflaterOutputStream(new MyOutputStream()); doTest(dfos); doTest1(dfos); dfos.close(); /* cleanup */ fn.delete(); }
Example 20
Source File: ReadParams.java From jdk8u-jdk with GNU General Public License v2.0 | 4 votes |
public static void main(String args[]) throws Exception{ /* initialise stuff */ File fn = new File("x.ReadBounds"); FileOutputStream fout = new FileOutputStream(fn); for (int i = 0; i < 32; i++) { fout.write(i); } fout.close(); byte b[] = new byte[64]; for(int i = 0; i < 64; i++) { b[i] = 1; } /* test all input streams */ FileInputStream fis = new FileInputStream(fn); doTest(fis); doTest1(fis); fis.close(); BufferedInputStream bis = new BufferedInputStream(new MyInputStream(1024)); doTest(bis); doTest1(bis); bis.close(); ByteArrayInputStream bais = new ByteArrayInputStream(b); doTest(bais); doTest1(bais); bais.close(); FileOutputStream fos = new FileOutputStream(fn); ObjectOutputStream oos = new ObjectOutputStream(fos); oos.writeInt(12345); oos.writeObject("Today"); oos.writeObject(new Integer(32)); oos.close(); ObjectInputStream ois = new ObjectInputStream(new FileInputStream(fn)); doTest(ois); doTest1(ois); ois.close(); DataInputStream dis = new DataInputStream(new MyInputStream(1024)); doTest(dis); doTest1(dis); dis.close(); LineNumberInputStream lis = new LineNumberInputStream(new MyInputStream(1024)); doTest(lis); doTest1(lis); lis.close(); PipedOutputStream pos = new PipedOutputStream(); PipedInputStream pis = new PipedInputStream(); pos.connect(pis); pos.write(b, 0, 64); doTest(pis); doTest1(pis); pis.close(); PushbackInputStream pbis = new PushbackInputStream(new MyInputStream(1024)); doTest(pbis); doTest1(pbis); pbis.close(); StringBufferInputStream sbis = new StringBufferInputStream(new String(b)); doTest(sbis); doTest1(sbis); sbis.close(); SequenceInputStream sis = new SequenceInputStream(new MyInputStream(1024), new MyInputStream(1024)); doTest(sis); doTest1(sis); sis.close(); ZipInputStream zis = new ZipInputStream(new FileInputStream(fn)); doTest(zis); doTest1(zis); zis.close(); byte[] data = new byte[256]; ByteArrayOutputStream bos = new ByteArrayOutputStream(); DeflaterOutputStream dos = new DeflaterOutputStream(bos); dos.write(data, 0, data.length); dos.close(); InflaterInputStream ifs = new InflaterInputStream (new ByteArrayInputStream(bos.toByteArray())); doTest(ifs); doTest1(ifs); ifs.close(); /* cleanup */ fn.delete(); }