File QRTokener.java has 879 lines of code (exceeds 250 allowed). Consider refactoring.

Open

package de.uniks.networkparser.bytes.qr;

/*
NetworkParser
The MIT License

Method decode has a Cognitive Complexity of 41 (exceeds 5 allowed). Consider refactoring.

Open

    public DecoderResult decode(Object values) {
        if (values == null) {
            return null;
        }

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QRTokener has 44 methods (exceeds 20 allowed). Consider refactoring.

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public class QRTokener {
    private final ReedSolomon rsDecoder = new ReedSolomon(GenericGF.QR_CODE_FIELD_256);

    /* The original table is defined in the table 5 of JISX0510:2004 (p.19). */
    private static final int[] ALPHANUMERIC_TABLE = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,

Method embedDataBits has a Cognitive Complexity of 25 (exceeds 5 allowed). Consider refactoring.

Open

    private static boolean embedDataBits(BitArray dataBits, int maskPattern, ByteMatrix matrix) {
        if (dataBits == null || matrix == null) {
            return false;
        }
        int bitIndex = 0;

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Method decode has 76 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public DecoderResult decode(Object values) {
        if (values == null) {
            return null;
        }

Method applyMaskPenaltyRule1Internal has a Cognitive Complexity of 19 (exceeds 5 allowed). Consider refactoring.

Open

    private static int applyMaskPenaltyRule1Internal(ByteMatrix matrix, boolean isHorizontal) {
        if (matrix == null) {
            return -1;
        }
        int penalty = 0;

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Method interleaveWithECBytes has a Cognitive Complexity of 17 (exceeds 5 allowed). Consider refactoring.

Open

    static BitArray interleaveWithECBytes(BitArray bits, int numTotalBytes, int numDataBytes, int numRSBlocks) {
        /* "bits" must have "getNumDataBytes" bytes of data. */
        if (bits == null || bits.getSizeInBytes() != numDataBytes) {
            return null;
        }

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Consider simplifying this complex logical expression.

Open

                if (x + 6 < width && arrayY[x] == 1 && arrayY[x + 1] == 0 && arrayY[x + 2] == 1 && arrayY[x + 3] == 1
                        && arrayY[x + 4] == 1 && arrayY[x + 5] == 0 && arrayY[x + 6] == 1
                        && (isWhiteHorizontal(arrayY, x - 4, x) || isWhiteHorizontal(arrayY, x + 7, x + 11))) {
                    numPenalties++;
                }

Consider simplifying this complex logical expression.

Open

                if (y + 6 < height && array[y][x] == 1 && array[y + 1][x] == 0 && array[y + 2][x] == 1
                        && array[y + 3][x] == 1 && array[y + 4][x] == 1 && array[y + 5][x] == 0 && array[y + 6][x] == 1
                        && (isWhiteVertical(array, x, y - 4, y) || isWhiteVertical(array, x, y + 7, y + 11))) {
                    numPenalties++;
                }

Method interleaveWithECBytes has 46 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    static BitArray interleaveWithECBytes(BitArray bits, int numTotalBytes, int numDataBytes, int numRSBlocks) {
        /* "bits" must have "getNumDataBytes" bytes of data. */
        if (bits == null || bits.getSizeInBytes() != numDataBytes) {
            return null;
        }

Method applyMaskPenaltyRule3 has a Cognitive Complexity of 14 (exceeds 5 allowed). Consider refactoring.

Open

    private static int applyMaskPenaltyRule3(ByteMatrix matrix) {
        if (matrix == null) {
            return -1;
        }
        int numPenalties = 0;

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Method maybeEmbedPositionAdjustmentPatterns has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.

Open

    private static void maybeEmbedPositionAdjustmentPatterns(Version version, ByteMatrix matrix) {
        if (version == null || matrix == null) {
            return;
        }
        if (version.getVersionNumber() < 2) { /* The patterns appear if version >= 2 */

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Method encode has 38 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public QRCode encode(String content, ErrorCorrectionLevel ecLevel) {
        String encoding = DEFAULT_BYTE_MODE_ENCODING;
        /*
         * Determine what character encoding has been specified by the caller, if any
         * Pick an encoding mode appropriate for the content. Note that this will not

Method embedDataBits has 34 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    private static boolean embedDataBits(BitArray dataBits, int maskPattern, ByteMatrix matrix) {
        if (dataBits == null || matrix == null) {
            return false;
        }
        int bitIndex = 0;

Method getDataMaskBit has 34 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    static boolean getDataMaskBit(int maskPattern, int x, int y) {
        int intermediate;
        int temp;
        switch (maskPattern) {
        case 0:

Method appendAlphanumericBytes has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.

Open

    static boolean appendAlphanumericBytes(CharSequence content, BitArray bits) {
        if (content == null || bits == null) {
            return false;
        }
        int length = content.length();

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Method appendKanjiBytes has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.

Open

    static boolean appendKanjiBytes(String content, BitArray bits) {
        if (content == null || bits == null) {
            return false;
        }
        byte[] bytes;

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Method chooseMode has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.

Open

    private static Mode chooseMode(String content, String encoding) {
        if ("Shift_JIS".equals(encoding) && isOnlyDoubleByteKanji(content)) {
            /* Choose Kanji mode if all input are double-byte characters */
            return Mode.KANJI;
        }

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Method appendKanjiBytes has 27 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    static boolean appendKanjiBytes(String content, BitArray bits) {
        if (content == null || bits == null) {
            return false;
        }
        byte[] bytes;

Method applyMaskPenaltyRule1Internal has 26 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    private static int applyMaskPenaltyRule1Internal(ByteMatrix matrix, boolean isHorizontal) {
        if (matrix == null) {
            return -1;
        }
        int penalty = 0;

Method isOnlyDoubleByteKanji has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.

Open

    private static boolean isOnlyDoubleByteKanji(String content) {
        if (content == null) {
            return false;
        }
        byte[] bytes;

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Method applyMaskPenaltyRule2 has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.

Open

    static int applyMaskPenaltyRule2(ByteMatrix matrix) {
        if (matrix == null) {
            return -1;
        }
        int penalty = 0;

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Method getNumDataBytesAndNumECBytesForBlockID has 6 arguments (exceeds 4 allowed). Consider refactoring.

Open

    static boolean getNumDataBytesAndNumECBytesForBlockID(int numTotalBytes, int numDataBytes, int numRSBlocks,
            int blockID, int[] numDataBytesInBlock, int[] numECBytesInBlock) {

Method terminateBits has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.

Open

    static boolean terminateBits(int numDataBytes, BitArray bits) {
        int capacity = numDataBytes * 8;
        if (bits == null || bits.getSize() > capacity) {
            return false; /* "data bits cannot fit in the QR Code" + bits.getSize() + " > " + capacity */
        }

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Method applyMaskPenaltyRule4 has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.

Open

    private static int applyMaskPenaltyRule4(ByteMatrix matrix) {
        if (matrix == null) {
            return -1;
        }
        int numDarkCells = 0;

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Method buildMatrix has 5 arguments (exceeds 4 allowed). Consider refactoring.

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    private static boolean buildMatrix(BitArray dataBits, ErrorCorrectionLevel ecLevel, Version version,
            int maskPattern, ByteMatrix matrix) {

Method append8BitBytes has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

Open

    static boolean append8BitBytes(String content, BitArray bits, String encoding) {
        if (content == null) {
            return false;
        }
        byte[] bytes = null;

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Method appendNumericBytes has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

Open

    static boolean appendNumericBytes(CharSequence content, BitArray bits) {
        if (content == null || bits == null) {
            return false;
        }
        int length = content.length();

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Avoid too many return statements within this method.

Open

        return Mode.BYTE;

Avoid too many return statements within this method.

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        return false;

Avoid too many return statements within this method.

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            return result;

Avoid too many return statements within this method.

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            return Mode.NUMERIC;

Avoid too many return statements within this method.

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        return true;

Avoid too many return statements within this method.

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        return decode(bits);

Avoid too many return statements within this method.

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                return result;

Avoid too many return statements within this method.

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        return true;

Avoid too many return statements within this method.

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            return null;

Method getNumDataBytesAndNumECBytesForBlockID has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    static boolean getNumDataBytesAndNumECBytesForBlockID(int numTotalBytes, int numDataBytes, int numRSBlocks,
            int blockID, int[] numDataBytesInBlock, int[] numECBytesInBlock) {
        if (blockID >= numRSBlocks) {
            return false; /* "Block ID too large"; */
        }

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Method chooseVersion has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

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    private static Version chooseVersion(int numInputBits, ErrorCorrectionLevel ecLevel) {
        /* In the following comments, we use numbers of Version 7-H. */
        for (int versionNum = 1; versionNum <= 40; versionNum++) {
            Version version = Version.getVersionForNumber(versionNum);
            /* numBytes = 196 */

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Method embedTimingPatterns has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    private static boolean embedTimingPatterns(ByteMatrix matrix) {
        if (matrix == null) {
            return false;
        }
        /*

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Method embedPositionDetectionPattern has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

    private static void embedPositionDetectionPattern(int xStart, int yStart, ByteMatrix matrix) {
        if (matrix != null) {
            for (int y = 0; y < 7; ++y) {
                for (int x = 0; x < 7; ++x) {
                    matrix.set(xStart + x, yStart + y, POSITION_DETECTION_PATTERN[y][x]);

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