Examples of javax.imageio.stream.ImageInputStream.readFully()

Class javax.imageio.stream.ImageInputStream

Examples of javax.imageio.stream.ImageInputStream.readFully()

javax.imageio.stream.ImageInputStream.readFully()
Reads len bytes from the stream, and stores them into b starting at index off. If the end of the stream is reached, an java.io.EOFException will be thrown.
The bit offset within the stream is reset to zero before the read occurs. @param b an array of bytes to be written to. @param off the starting position within b to write to. @param len the maximum number of bytes to read. @exception IndexOutOfBoundsException if off isnegative, len is negative, or off + len is greater than b.length. @exception NullPointerException if b isnull. @exception java.io.EOFException if the stream reaches the end beforereading all the bytes. @exception IOException if an I/O error occurs.

        }
        
        ImageInputStream stream = (ImageInputStream)input;
        byte[] b = new byte[6];
        stream.mark();
        stream.readFully(b);
        stream.reset();


        return b[0] == 'G' && b[1] == 'I' && b[2] == 'F' && b[3] == '8' &&
            (b[4] == '7' || b[4] == '9') && b[5] == 'a';
    }

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        }


        ImageInputStream stream = (ImageInputStream)input;
        byte[] b = new byte[8];
        stream.mark();
        stream.readFully(b);
        stream.reset();
        
        return (b[0] == (byte)137 &&
                b[1] == (byte)80 &&
                b[2] == (byte)78 &&

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        }


        ImageInputStream stream = (ImageInputStream)input;
        byte[] b = new byte[8];
        stream.mark();
        stream.readFully(b);
        stream.reset();


        return (b[0] == (byte)137 &&
                b[1] == (byte)80 &&
                b[2] == (byte)78 &&

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        }


        ImageInputStream stream = (ImageInputStream)input;
        byte[] b = new byte[6];
        stream.mark();
        stream.readFully(b);
        stream.reset();


        return b[0] == 'G' && b[1] == 'I' && b[2] == 'F' && b[3] == '8' &&
            (b[4] == '7' || b[4] == '9') && b[5] == 'a';
    }

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        }


        ImageInputStream stream = (ImageInputStream)source;
        byte[] b = new byte[2];
        stream.mark();
        stream.readFully(b);
        stream.reset();


        return (b[0] == 0x42) && (b[1] == 0x4d);
    }

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                    in.mark();
                    try {
                        reclen = in.readUnsignedShort();
                        // Check for ICC profile
                        byte[] iccString = new byte[11];
                        in.readFully(iccString);
                        in.skipBytes(1); //string terminator (null byte)


                        if ("ICC_PROFILE".equals(new String(iccString, "US-ASCII"))) {
                            log.debug("JPEG has an ICC profile");
                            in.skipBytes(2); //chunk sequence number and total number of chunks

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                                //ICC profiles can be split into several chunks
                                //so collect in a byte array output stream
                                iccStream = new ByteArrayOutputStream();
                            }
                            byte[] buf = new byte[reclen - 18];
                            in.readFully(buf);
                            iccStream.write(buf);
                        }
                    } finally {
                        in.reset();
                    }

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                    in.mark();
                    try {
                        reclen = in.readUnsignedShort();
                        // Check for Adobe header
                        byte[] adobeHeader = new byte[5];
                        in.readFully(adobeHeader);
                        
                        if ("Adobe".equals(new String(adobeHeader, "US-ASCII"))) {
                            // The reason for reading the APPE marker is that Adobe Photoshop
                            // generates CMYK JPEGs with inverted values. The correct thing
                            // to do would be to interpret the values in the marker, but for now

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                    in.mark();
                    try {
                        reclen = jpeg.readSegmentLength();
                        // Check for ICC profile
                        byte[] iccString = new byte[11];
                        in.readFully(iccString);
                        in.skipBytes(1); //string terminator (null byte)


                        if ("ICC_PROFILE".equals(new String(iccString, "US-ASCII"))) {
                            in.skipBytes(2); //chunk sequence number and total number of chunks
                            int payloadSize = reclen - 2 - 12 - 2;

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                            if (ignoreColorProfile(hints)) {
                                log.debug("Ignoring ICC profile data in JPEG");
                                in.skipBytes(payloadSize);
                            } else {
                                byte[] buf = new byte[payloadSize];
                                in.readFully(buf);
                                if (iccStream == null) {
                                    if (log.isDebugEnabled()) {
                                        log.debug("JPEG has an ICC profile");
                                        DataInputStream din = new DataInputStream(new ByteArrayInputStream(buf));
                                        log.debug("Declared ICC profile size: " + din.readInt());

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