List of usage examples for java.io BufferedInputStream reset
public synchronized void reset() throws IOException
reset method of InputStream. From source file:org.docx4j.openpackaging.packages.OpcPackage.java
/** * Convenience method to create a WordprocessingMLPackage * or PresentationMLPackage/*from w ww . j a v a 2s .c o m*/ * from an inputstream (.docx/.docxm, .ppxtx or Flat OPC .xml). * It detects the convenient format inspecting two first bytes of stream (magic bytes). * For office 2007 'x' formats, these two bytes are 'PK' (same as zip file) * * @param inputStream * The docx file * @param password * The password, if the file is password protected (compound) * * @Since 2.8.0 */ public static OpcPackage load(final InputStream inputStream, String password) throws Docx4JException { //try to detect the type of file using a bufferedinputstream final BufferedInputStream bis = new BufferedInputStream(inputStream); bis.mark(0); final byte[] firstTwobytes = new byte[2]; int read = 0; try { read = bis.read(firstTwobytes); bis.reset(); } catch (final IOException e) { throw new Docx4JException("Error reading from the stream", e); } if (read != 2) { throw new Docx4JException("Error reading from the stream (no bytes available)"); } if (firstTwobytes[0] == 'P' && firstTwobytes[1] == 'K') { // 50 4B return OpcPackage.load(bis, Filetype.ZippedPackage, null); } else if (firstTwobytes[0] == (byte) 0xD0 && firstTwobytes[1] == (byte) 0xCF) { // password protected docx is a compound file, with signature D0 CF 11 E0 A1 B1 1A E1 log.info("Detected compound file"); return OpcPackage.load(bis, Filetype.Compound, password); } else { //Assume.. log.info("Assuming Flat OPC XML"); return OpcPackage.load(bis, Filetype.FlatOPC, null); } }
From source file:com.cyberway.issue.crawler.frontier.RecoveryJournal.java
/** * Read a line from the given bufferedinputstream into the MutableString. * Return true if a line was read; false if EOF. * //from w w w .j ava 2 s . c om * @param is * @param read * @return True if we read a line. * @throws IOException */ private static boolean readLine(BufferedInputStream is, MutableString read) throws IOException { read.length(0); int c = is.read(); while ((c != -1) && c != '\n' && c != '\r') { read.append((char) c); c = is.read(); } if (c == -1 && read.length() == 0) { // EOF and none read; return false return false; } if (c == '\n') { // consume LF following CR, if present is.mark(1); if (is.read() != '\r') { is.reset(); } } // a line (possibly blank) was read return true; }
From source file:Main.java
public static String getCharset(File file) { String charset = "GBK"; byte[] first3Bytes = new byte[3]; try {/*from ww w . j av a 2 s.c o m*/ boolean checked = false; BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file)); bis.mark(0); int read = bis.read(first3Bytes, 0, 3); if (read == -1) return charset; if (first3Bytes[0] == (byte) 0xFF && first3Bytes[1] == (byte) 0xFE) { charset = "UTF-16LE"; checked = true; } else if (first3Bytes[0] == (byte) 0xFE && first3Bytes[1] == (byte) 0xFF) { charset = "UTF-16BE"; checked = true; } else if (first3Bytes[0] == (byte) 0xEF && first3Bytes[1] == (byte) 0xBB && first3Bytes[2] == (byte) 0xBF) { charset = "UTF-8"; checked = true; } bis.reset(); if (!checked) { int loc = 0; while ((read = bis.read()) != -1) { loc++; if (read >= 0xF0) break; if (0x80 <= read && read <= 0xBF) break; if (0xC0 <= read && read <= 0xDF) { read = bis.read(); if (0x80 <= read && read <= 0xBF) continue; else break; } else if (0xE0 <= read && read <= 0xEF) { read = bis.read(); if (0x80 <= read && read <= 0xBF) { read = bis.read(); if (0x80 <= read && read <= 0xBF) { charset = "UTF-8"; break; } else break; } else break; } } } bis.close(); } catch (Exception e) { e.printStackTrace(); } return charset; }
From source file:cn.guoyukun.spring.utils.FileCharset.java
public static String getCharset(final BufferedInputStream is) { String charset = DEFAULT_CHARSET; byte[] first3Bytes = new byte[3]; try {//from www . jav a2 s. c om boolean checked = false; is.mark(0); int read = is.read(first3Bytes, 0, 3); if (read == -1) return charset; if (first3Bytes[0] == (byte) 0xFF && first3Bytes[1] == (byte) 0xFE) { charset = "UTF-16LE"; checked = true; } else if (first3Bytes[0] == (byte) 0xFE && first3Bytes[1] == (byte) 0xFF) { charset = "UTF-16BE"; checked = true; } else if (first3Bytes[0] == (byte) 0xEF && first3Bytes[1] == (byte) 0xBB && first3Bytes[2] == (byte) 0xBF) { charset = "UTF-8"; checked = true; } is.reset(); if (!checked) { int loc = 0; while ((read = is.read()) != -1 && loc < 100) { loc++; if (read >= 0xF0) break; if (0x80 <= read && read <= 0xBF) // ?BFGBK break; if (0xC0 <= read && read <= 0xDF) { read = is.read(); if (0x80 <= read && read <= 0xBF) // ? (0xC0 - 0xDF) // (0x80 // - 0xBF),?GB? continue; else break; } else if (0xE0 <= read && read <= 0xEF) {// ?? read = is.read(); if (0x80 <= read && read <= 0xBF) { read = is.read(); if (0x80 <= read && read <= 0xBF) { charset = "UTF-8"; break; } else break; } else break; } } } is.reset(); } catch (Exception e) { e.printStackTrace(); } return charset; }
From source file:com.seajas.search.contender.scripting.XmlHtmlReader.java
private static String getXMLGuessEncoding(final BufferedInputStream is) throws IOException { String encoding = null;//from w w w . j ava 2 s . c o m int[] bytes = new int[4]; is.mark(4); bytes[0] = is.read(); bytes[1] = is.read(); bytes[2] = is.read(); bytes[3] = is.read(); is.reset(); if (bytes[0] == 0x00 && bytes[1] == 0x3C && bytes[2] == 0x00 && bytes[3] == 0x3F) { encoding = UTF_16BE; } else if (bytes[0] == 0x3C && bytes[1] == 0x00 && bytes[2] == 0x3F && bytes[3] == 0x00) { encoding = UTF_16LE; } else if (bytes[0] == 0x3C && bytes[1] == 0x3F && bytes[2] == 0x78 && bytes[3] == 0x6D) { encoding = UTF_8; } return encoding; }
From source file:util.io.IOUtilities.java
/** * This method tries to open an inputstream as gzip and uncompresses it. If it fails, * a normal inputstream is returned//from w w w.j a va 2 s . c om * * @param is Inputstream that could be compressed * @return uncompressed inputstream * @throws IOException Problems during opening of the Stream * @since 3.0 */ public static InputStream openSaveGZipInputStream(final InputStream is) throws IOException { final BufferedInputStream bis = new BufferedInputStream(is); bis.mark(64); try { final InputStream result = new GZIPInputStream(bis); return result; } catch (final IOException e) { e.printStackTrace(); bis.reset(); return bis; } }
From source file:com.seajas.search.contender.scripting.XmlHtmlReader.java
private static String getBOMEncoding(final BufferedInputStream is) throws IOException { String encoding = null;/*from w w w .j av a 2 s. c o m*/ int[] bytes = new int[3]; is.mark(3); bytes[0] = is.read(); bytes[1] = is.read(); bytes[2] = is.read(); if (bytes[0] == 0xFE && bytes[1] == 0xFF) { encoding = UTF_16BE; is.reset(); is.read(); is.read(); } else if (bytes[0] == 0xFF && bytes[1] == 0xFE) { encoding = UTF_16LE; is.reset(); is.read(); is.read(); } else if (bytes[0] == 0xEF && bytes[1] == 0xBB && bytes[2] == 0xBF) { encoding = UTF_8; } else { is.reset(); } return encoding; }
From source file:immf.Util.java
@SuppressWarnings("unchecked") public static InputStream png2gif(InputStream is) throws IOException { InputStream gis = null;//from w w w . ja v a 2s . co m BufferedInputStream pis = new BufferedInputStream(is); try { // iPhone iOS??iOS 4.3??????? pis.mark(0); ImageInputStream iis = ImageIO.createImageInputStream(pis); Iterator i = ImageIO.getImageReaders(iis); if (i.hasNext() && ((ImageReader) i.next()).getFormatName().equals("gif")) { // ???gif????????????? pis.reset(); gis = pis; } } catch (Exception e) { } finally { pis.reset(); } if (gis != null) { return gis; } // PNG -> GIF? try { BufferedImage png = ImageIO.read(pis); ByteArrayOutputStream converted = new ByteArrayOutputStream(); if (ImageIO.write(png, "gif", converted)) { gis = new ByteArrayInputStream(converted.toByteArray()); } } catch (Exception e) { } if (gis != null) { return gis; } else { pis.reset(); return pis; } }
From source file:com.github.benmanes.caffeine.cache.simulator.parser.AbstractTraceReader.java
/** Returns the input stream, decompressing if required. */ private InputStream readFile(String filePath) throws IOException { BufferedInputStream input = new BufferedInputStream(openFile(filePath), BUFFER_SIZE); input.mark(100);/*from www . jav a2s . c om*/ try { return new XZInputStream(input); } catch (IOException e) { input.reset(); } try { return new CompressorStreamFactory().createCompressorInputStream(input); } catch (CompressorException e) { input.reset(); } try { return new ArchiveStreamFactory().createArchiveInputStream(input); } catch (ArchiveException e) { input.reset(); } return input; }
From source file:org.callimachusproject.io.CarInputStream.java
private String detectRdfType(BufferedInputStream in) throws IOException { byte[] peek = new byte[200]; in.mark(200);//from w w w .j a v a 2s.c o m int len = IOUtil.readBytes(in, peek); in.reset(); int first = new TextReader(new ByteArrayInputStream(peek, 0, len)).read(); if (first == '<') return "application/rdf+xml"; return "text/turtle"; }