Examples with Result com.google.zxing.Result used on opensource projects

Example 1 with Result

use of com.google.zxing.Result in project zxing by zxing.

the class DecodeServlet method processImage.

private static void processImage(BufferedImage image, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
    LuminanceSource source = new BufferedImageLuminanceSource(image);
    BinaryBitmap bitmap = new BinaryBitmap(new GlobalHistogramBinarizer(source));
    Collection<Result> results = new ArrayList<>(1);
    try {
        Reader reader = new MultiFormatReader();
        ReaderException savedException = null;
        try {
            // Look for multiple barcodes
            MultipleBarcodeReader multiReader = new GenericMultipleBarcodeReader(reader);
            Result[] theResults = multiReader.decodeMultiple(bitmap, HINTS);
            if (theResults != null) {
                results.addAll(Arrays.asList(theResults));
            }
        } catch (ReaderException re) {
            savedException = re;
        }
        if (results.isEmpty()) {
            try {
                // Look for pure barcode
                Result theResult = reader.decode(bitmap, HINTS_PURE);
                if (theResult != null) {
                    results.add(theResult);
                }
            } catch (ReaderException re) {
                savedException = re;
            }
        }
        if (results.isEmpty()) {
            try {
                // Look for normal barcode in photo
                Result theResult = reader.decode(bitmap, HINTS);
                if (theResult != null) {
                    results.add(theResult);
                }
            } catch (ReaderException re) {
                savedException = re;
            }
        }
        if (results.isEmpty()) {
            try {
                // Try again with other binarizer
                BinaryBitmap hybridBitmap = new BinaryBitmap(new HybridBinarizer(source));
                Result theResult = reader.decode(hybridBitmap, HINTS);
                if (theResult != null) {
                    results.add(theResult);
                }
            } catch (ReaderException re) {
                savedException = re;
            }
        }
        if (results.isEmpty()) {
            try {
                throw savedException == null ? NotFoundException.getNotFoundInstance() : savedException;
            } catch (FormatException | ChecksumException e) {
                log.info(e.toString());
                errorResponse(request, response, "format");
            } catch (ReaderException e) {
                // Including NotFoundException
                log.info(e.toString());
                errorResponse(request, response, "notfound");
            }
            return;
        }
    } catch (RuntimeException re) {
        // Call out unexpected errors in the log clearly
        log.log(Level.WARNING, "Unexpected exception from library", re);
        throw new ServletException(re);
    }
    String fullParameter = request.getParameter("full");
    boolean minimalOutput = fullParameter != null && !Boolean.parseBoolean(fullParameter);
    if (minimalOutput) {
        response.setContentType(MediaType.PLAIN_TEXT_UTF_8.toString());
        response.setCharacterEncoding(StandardCharsets.UTF_8.name());
        try (Writer out = new OutputStreamWriter(response.getOutputStream(), StandardCharsets.UTF_8)) {
            for (Result result : results) {
                out.write(result.getText());
                out.write('\n');
            }
        }
    } else {
        request.setAttribute("results", results);
        request.getRequestDispatcher("decoderesult.jspx").forward(request, response);
    }
}

Example 2 with Result

use of com.google.zxing.Result in project zxing by zxing.

the class RSSExpandedStackedInternalTestCase method testDecodingRowByRow.

@Test
public void testDecodingRowByRow() throws Exception {
    RSSExpandedReader rssExpandedReader = new RSSExpandedReader();
    BinaryBitmap binaryMap = TestCaseUtil.getBinaryBitmap("src/test/resources/blackbox/rssexpandedstacked-2/1000.png");
    int firstRowNumber = binaryMap.getHeight() / 3;
    BitArray firstRow = binaryMap.getBlackRow(firstRowNumber, null);
    try {
        rssExpandedReader.decodeRow2pairs(firstRowNumber, firstRow);
        fail(NotFoundException.class.getName() + " expected");
    } catch (NotFoundException nfe) {
    // ok
    }
    assertEquals(1, rssExpandedReader.getRows().size());
    ExpandedRow firstExpandedRow = rssExpandedReader.getRows().get(0);
    assertEquals(firstRowNumber, firstExpandedRow.getRowNumber());
    assertEquals(2, firstExpandedRow.getPairs().size());
    firstExpandedRow.getPairs().get(1).getFinderPattern().getStartEnd()[1] = 0;
    int secondRowNumber = 2 * binaryMap.getHeight() / 3;
    BitArray secondRow = binaryMap.getBlackRow(secondRowNumber, null);
    secondRow.reverse();
    List<ExpandedPair> totalPairs = rssExpandedReader.decodeRow2pairs(secondRowNumber, secondRow);
    Result result = RSSExpandedReader.constructResult(totalPairs);
    assertEquals("(01)98898765432106(3202)012345(15)991231", result.getText());
}

Example 3 with Result

use of com.google.zxing.Result in project zxing by zxing.

the class RSSExpandedStackedInternalTestCase method testCompleteDecode.

@Test
public void testCompleteDecode() throws Exception {
    OneDReader rssExpandedReader = new RSSExpandedReader();
    BinaryBitmap binaryMap = TestCaseUtil.getBinaryBitmap("src/test/resources/blackbox/rssexpandedstacked-2/1000.png");
    Result result = rssExpandedReader.decode(binaryMap);
    assertEquals("(01)98898765432106(3202)012345(15)991231", result.getText());
}

Example 4 with Result

use of com.google.zxing.Result in project zxing by zxing.

the class DecodeWorker method dumpResult.

private static void dumpResult(URI input, Result... results) throws IOException {
    Collection<String> resultTexts = new ArrayList<>();
    for (Result result : results) {
        resultTexts.add(result.getText());
    }
    Files.write(buildOutputPath(input, ".txt"), resultTexts, StandardCharsets.UTF_8);
}

Example 5 with Result

use of com.google.zxing.Result in project zxing by zxing.

the class HistoryItemAdapter method getView.

@Override
public View getView(int position, View view, ViewGroup viewGroup) {
    View layout;
    if (view instanceof LinearLayout) {
        layout = view;
    } else {
        LayoutInflater factory = LayoutInflater.from(activity);
        layout = factory.inflate(R.layout.history_list_item, viewGroup, false);
    }
    HistoryItem item = getItem(position);
    Result result = item.getResult();
    CharSequence title;
    CharSequence detail;
    if (result != null) {
        title = result.getText();
        detail = item.getDisplayAndDetails();
    } else {
        Resources resources = getContext().getResources();
        title = resources.getString(R.string.history_empty);
        detail = resources.getString(R.string.history_empty_detail);
    }
    ((TextView) layout.findViewById(R.id.history_title)).setText(title);
    ((TextView) layout.findViewById(R.id.history_detail)).setText(detail);
    return layout;
}