private void processSasFileHeader()

in src/main/java/com/epam/parso/impl/SasFileParser.java [318:384]
59 lines of code
9 McCabe index (conditional complexity)

    private void processSasFileHeader(String builderEncoding) throws IOException {
        int align1 = 0;
        int align2 = 0;

        Long[] offsetForAlign = {ALIGN_1_OFFSET, ALIGN_2_OFFSET};
        Integer[] lengthForAlign = {ALIGN_1_LENGTH, ALIGN_2_LENGTH};
        List<byte[]> varsForAlign = getBytesFromFile(offsetForAlign, lengthForAlign);

        if (varsForAlign.get(0)[0] == U64_BYTE_CHECKER_VALUE) {
            align2 = ALIGN_2_VALUE;
            sasFileProperties.setU64(true);
        }

        if (varsForAlign.get(1)[0] == ALIGN_1_CHECKER_VALUE) {
            align1 = ALIGN_1_VALUE;
        }

        int totalAlign = align1 + align2;

        Long[] offset = {ENDIANNESS_OFFSET, ENCODING_OFFSET, DATASET_OFFSET, FILE_TYPE_OFFSET,
                DATE_CREATED_OFFSET + align1, DATE_MODIFIED_OFFSET + align1, HEADER_SIZE_OFFSET + align1,
                PAGE_SIZE_OFFSET + align1, PAGE_COUNT_OFFSET + align1, SAS_RELEASE_OFFSET + totalAlign,
                SAS_SERVER_TYPE_OFFSET + totalAlign, OS_VERSION_NUMBER_OFFSET + totalAlign,
                OS_MAKER_OFFSET + totalAlign, OS_NAME_OFFSET + totalAlign};
        Integer[] length = {ENDIANNESS_LENGTH, ENCODING_LENGTH, DATASET_LENGTH, FILE_TYPE_LENGTH, DATE_CREATED_LENGTH,
                DATE_MODIFIED_LENGTH, HEADER_SIZE_LENGTH, PAGE_SIZE_LENGTH, PAGE_COUNT_LENGTH + align2,
                SAS_RELEASE_LENGTH, SAS_SERVER_TYPE_LENGTH, OS_VERSION_NUMBER_LENGTH, OS_MAKER_LENGTH, OS_NAME_LENGTH};
        List<byte[]> vars = getBytesFromFile(offset, length);

        sasFileProperties.setEndianness(vars.get(0)[0]);
        if (!isSasFileValid()) {
            throw new IOException(FILE_NOT_VALID);
        }

        String fileEncoding = SAS_CHARACTER_ENCODINGS.get(vars.get(1)[0]);
        if (builderEncoding != null) {
            this.encoding = builderEncoding;
        } else {
            this.encoding = fileEncoding != null ? fileEncoding : this.encoding;
        }
        sasFileProperties.setEncoding(fileEncoding);
        sasFileProperties.setName(bytesToString(vars.get(2)).trim());
        sasFileProperties.setFileType(bytesToString(vars.get(3)).trim());
        sasFileProperties.setDateCreated(bytesToDateTime(vars.get(4)));
        sasFileProperties.setDateModified(bytesToDateTime(vars.get(5)));
        sasFileProperties.setHeaderLength(bytesToInt(vars.get(6)));
        int pageLength = bytesToInt(vars.get(7));
        if (pageLength > MAX_PAGE_LENGTH) {
            throw new IOException("Page limit ("
                    + pageLength + ") exceeds maximum: " + MAX_PAGE_LENGTH);
        }
        sasFileProperties.setPageLength(pageLength);
        sasFileProperties.setPageCount(bytesToLong(vars.get(8)));
        sasFileProperties.setSasRelease(bytesToString(vars.get(9)).trim());
        sasFileProperties.setServerType(bytesToString(vars.get(10)).trim());
        sasFileProperties.setOsType(bytesToString(vars.get(11)).trim());
        if (vars.get(13)[0] != 0) {
            sasFileProperties.setOsName(bytesToString(vars.get(13)).trim());
        } else {
            sasFileProperties.setOsName(bytesToString(vars.get(12)).trim());
        }

        if (sasFileStream != null) {
            skipBytes(sasFileProperties.getHeaderLength() - currentFilePosition);
            currentFilePosition = 0;
        }
    }