Examples with CRCFailError com.nightscout.core.dexcom.CRCFailError used on opensource projects

Example 1 with CRCFailError

use of com.nightscout.core.dexcom.CRCFailError in project android-uploader by nightscout.

the class SyncingService method handleActionSync.

/**
     * Handle action Sync in the provided background thread with the provided
     * parameters.
     */
protected void handleActionSync(int numOfPages, Context context, DeviceTransport serialDriver) {
    boolean broadcastSent = false;
    AndroidPreferences preferences = new AndroidPreferences(context);
    Tracker tracker = ((Nightscout) context).getTracker();
    PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
    PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "NSDownload");
    wl.acquire();
    if (serialDriver != null) {
        AbstractUploaderDevice uploaderDevice = AndroidUploaderDevice.getUploaderDevice(context);
        AbstractDevice device = new DexcomG4(serialDriver, preferences, uploaderDevice);
        ((DexcomG4) device).setNumOfPages(numOfPages);
        ((CdcAcmSerialDriver) serialDriver).setPowerManagementEnabled(preferences.isRootEnabled());
        try {
            DownloadResults results = device.download();
            G4Download download = results.getDownload();
            Uploader uploader = new Uploader(context, preferences);
            boolean uploadStatus;
            if (numOfPages < 20) {
                uploadStatus = uploader.upload(results, 1);
            } else {
                uploadStatus = uploader.upload(results);
            }
            EGVRecord recentEGV;
            if (download.download_status == DownloadStatus.SUCCESS) {
                recentEGV = new EGVRecord(download.sgv.get(download.sgv.size() - 1));
            } else {
                recentEGV = new EGVRecord(-1, TrendArrow.NONE, new Date(), new Date(), G4Noise.NOISE_NONE);
            }
            broadcastSGVToUI(recentEGV, uploadStatus, results.getNextUploadTime() + TIME_SYNC_OFFSET, results.getDisplayTime(), results.getResultArray(), download.receiver_battery);
            broadcastSent = true;
        } catch (ArrayIndexOutOfBoundsException e) {
            Log.wtf("Unable to read from the dexcom, maybe it will work next time", e);
            tracker.send(new HitBuilders.ExceptionBuilder().setDescription("Array Index out of bounds").setFatal(false).build());
        } catch (NegativeArraySizeException e) {
            Log.wtf("Negative array exception from receiver", e);
            tracker.send(new HitBuilders.ExceptionBuilder().setDescription("Negative Array size").setFatal(false).build());
        } catch (IndexOutOfBoundsException e) {
            Log.wtf("IndexOutOfBounds exception from receiver", e);
            tracker.send(new HitBuilders.ExceptionBuilder().setDescription("IndexOutOfBoundsException").setFatal(false).build());
        } catch (CRCFailError e) {
            // FIXME: may consider localizing this catch at a lower level (like ReadData) so that
            // if the CRC check fails on one type of record we can capture the values if it
            // doesn't fail on other types of records. This means we'd need to broadcast back
            // partial results to the UI. Adding it to a lower level could make the ReadData class
            // more difficult to maintain - needs discussion.
            Log.wtf("CRC failed", e);
            tracker.send(new HitBuilders.ExceptionBuilder().setDescription("CRC Failed").setFatal(false).build());
        } catch (Exception e) {
            Log.wtf("Unhandled exception caught", e);
            tracker.send(new HitBuilders.ExceptionBuilder().setDescription("Catch all exception in handleActionSync").setFatal(false).build());
        }
    }
    if (!broadcastSent)
        broadcastSGVToUI();
    wl.release();
}

Example 2 with CRCFailError

use of com.nightscout.core.dexcom.CRCFailError in project android-uploader by nightscout.

the class ReadDataTest method testPingCommandBadCrc.

@Test
public void testPingCommandBadCrc() throws IOException {
    ReadData readData = new ReadData(usbDevice);
    when(usbDevice.write((byte[]) anyObject(), anyInt())).thenReturn(6);
    byte[] readResponse = new byte[] { 0x01, 0x00, 0x00, 0x01, (byte) 0xB4, 0x75 };
    when(usbDevice.read(anyInt(), anyInt())).thenReturn(readResponse);
    try {
        readData.ping();
        fail("Expected CRC exception");
    } catch (CRCFailError e) {
        assertThat(e.getMessage(), is("CRC check failed. Was: B475 Expected: 9566"));
    }
}