Examples of java.io.FileInputStream.skip()

java.io.FileInputStream.skip()
Skips over and discards n bytes of data from the input stream.
The skip method may, for a variety of reasons, end up skipping over some smaller number of bytes, possibly 0. If n is negative, an IOException is thrown, even though the skip method of the {@link InputStream} superclass does nothing in this case.The actual number of bytes skipped is returned.
This method may skip more bytes than are remaining in the backing file. This produces no exception and the number of bytes skipped may include some number of bytes that were beyond the EOF of the backing file. Attempting to read from the stream after skipping past the end will result in -1 indicating the end of the file. @param n the number of bytes to be skipped. @return the actual number of bytes skipped. @exception IOException if n is negative, if the stream does notsupport seek, or if an I/O error occurs.

            }


            final FileInputStream fis = new FileInputStream(file);


            if (pos > 0) {
                final long actualPos = fis.skip(pos);
            }


            final BufferedInputStream  bis = new BufferedInputStream(fis);
            final CountdownInputStream cis = new CountdownInputStream(bis);

View Full Code Here

      }
      if(isRange()){
        System.out.println("Byte range: "+startByte+" - "+(getRangeSize()>0?endByte:""));
        long skipped=0;
        while(skipped<startByte){
          skipped+=is.skip(startByte);
        }
        ftc.writeAllData(is, endByte-startByte+1);
        
      }else{
        ftc.writeAllData(is);

View Full Code Here

              @Override
              public int available() throws IOException {
                return (int) dataLen;
              }
            };
            fis.skip(startFrom);


            res = new Response(HTTP_PARTIALCONTENT, mime, fis);
            res.addHeader("Content-Length", "" + dataLen);
            res.addHeader("Content-Range", "bytes " + startFrom + "-" + endAt + "/" + fileLen);
            res.addHeader("ETag", etag);

View Full Code Here

     * diffBlockLen); System.err.println ("newsize=" + newsize);
     */


    FileInputStream in;
    in = new FileInputStream(diffFile);
    in.skip(ctrlBlockLen + 32);
    GZIPInputStream diffBlockIn = new GZIPInputStream(in);


    in = new FileInputStream(diffFile);
    in.skip(diffBlockLen + ctrlBlockLen + 32);
    GZIPInputStream extraBlockIn = new GZIPInputStream(in);

View Full Code Here

    in = new FileInputStream(diffFile);
    in.skip(ctrlBlockLen + 32);
    GZIPInputStream diffBlockIn = new GZIPInputStream(in);


    in = new FileInputStream(diffFile);
    in.skip(diffBlockLen + ctrlBlockLen + 32);
    GZIPInputStream extraBlockIn = new GZIPInputStream(in);


    /*
     * Read in old file (file to be patched) to oldBuf
     */

View Full Code Here

        {
            fIn = new FileInputStream( pdfFile );
            
            final int trailByteCount = ( fileLen < readTrailBytes ) ? (int) fileLen : readTrailBytes;
            buf = new byte[ trailByteCount ]; 
            fIn.skip( skipBytes = fileLen - trailByteCount );
            
            int off = 0;
            int readBytes;
            while ( off < trailByteCount )
            {

View Full Code Here

            //new File(mapOutputFileName.toUri().getPath()), runAsUserName);


        ReadaheadRequest curReadahead = null;
        
        //seek to the correct offset for the reduce
        mapOutputIn.skip(info.startOffset);
        long rem = info.partLength;
        long offset = info.startOffset;
        while (rem > 0) {
          if (tracker.manageOsCacheInShuffle && tracker.readaheadPool != null) {
            curReadahead = tracker.readaheadPool.readaheadStream(filePath,

View Full Code Here

        {
            fIn = new FileInputStream(pdfFile);


            final int trailByteCount = (fileLen < readTrailBytes) ? (int) fileLen : readTrailBytes;
            buf = new byte[trailByteCount];
            fIn.skip(skipBytes = fileLen - trailByteCount);


            int off = 0;
            int readBytes;
            while (off < trailByteCount)
            {

View Full Code Here

    byte flags = (byte)(compressedBuf[3] & 0xff);
    if ((flags & 0x04) != 0) {   // FEXTRA
      numBytesRead = in.read(compressedBuf, 0, 2);
      assertEquals("XLEN bytes read", 2, numBytesRead);
      int xlen = ((compressedBuf[1] << 8) | compressedBuf[0]) & 0xffff;
      in.skip(xlen);
    }
    if ((flags & 0x08) != 0) {   // FNAME
      while ((numBytesRead = in.read()) != 0) {
        assertFalse("unexpected end-of-file while reading filename",
                    numBytesRead == -1);

View Full Code Here


            final long dataLen = newLen;
            FileInputStream fis = new FileInputStream( f ) {
              public int available() throws IOException { return (int)dataLen; }
            };
            fis.skip( startFrom );


            res = new Response( HTTP_PARTIALCONTENT, mime, fis );
            res.addHeader( "Content-Length", "" + dataLen);
            res.addHeader( "Content-Range", "bytes " + startFrom + "-" + endAt + "/" + fileLen);
            res.addHeader( "ETag", etag);

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.