Example usage for java.util Collections max

Introduction

In this page you can find the example usage for java.util Collections max.

Prototype

@SuppressWarnings({ "unchecked", "rawtypes" })
public static <T> T max(Collection<? extends T> coll, Comparator<? super T> comp) 

Source Link

Document

Returns the maximum element of the given collection, according to the order induced by the specified comparator.

Usage

From source file:arun.com.chromer.browsing.customtabs.dynamictoolbar.AppColorExtractorJob.java

private int getPreferredColorFromSwatches(Palette palette) {
    final List<Palette.Swatch> swatchList = ColorUtil.getSwatchListFromPalette(palette);
    final Palette.Swatch prominentSwatch = Collections.max(swatchList, (swatch1, swatch2) -> {
        int a = swatch1 == null ? 0 : swatch1.getPopulation();
        int b = swatch2 == null ? 0 : swatch2.getPopulation();
        return a - b;
    });/*from   ww w  .  jav  a  2s  .  c o m*/
    if (prominentSwatch != null)
        return prominentSwatch.getRgb();
    else
        return -1;
}

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From source file:org.opencms.site.xmlsitemap.CmsDetailPageDuplicateEliminatingSitemapGenerator.java

/**
 * @see org.opencms.site.xmlsitemap.CmsXmlSitemapGenerator#generateSitemapBeans()
 *//* w  w w . j a  va  2 s  .  c  o  m*/
@Override
public List<CmsXmlSitemapUrlBean> generateSitemapBeans() throws CmsException {

    List<CmsXmlSitemapUrlBean> parentResult = super.generateSitemapBeans();
    List<CmsXmlSitemapUrlBean> result = Lists.newArrayList();
    Multimap<String, CmsXmlSitemapUrlBean> detailPageBeans = ArrayListMultimap.create();

    // We want to eliminate duplicate detail pages for the same detail content and locale,
    // so first we group the XML sitemap beans belonging to detail pages by their locale/content combination,
    // and then we sort each group by the sitemap configuration where the detail page is coming from,
    // and then only take the last element in each group.

    for (CmsXmlSitemapUrlBean urlBean : parentResult) {
        if (urlBean.getDetailPageResource() == null) {
            result.add(urlBean);
        } else {
            String localeKey = urlBean.getOriginalResource().getStructureId() + "_" + urlBean.getLocale();
            detailPageBeans.put(localeKey, urlBean);
        }
    }
    Comparator<CmsXmlSitemapUrlBean> pathComparator = new Comparator<CmsXmlSitemapUrlBean>() {

        public int compare(CmsXmlSitemapUrlBean urlbean1, CmsXmlSitemapUrlBean urlbean2) {

            String subsite1 = urlbean1.getSubsite();
            if (subsite1 == null) {
                subsite1 = "";
            }
            String subsite2 = urlbean2.getSubsite();
            if (subsite2 == null) {
                subsite2 = "";
            }
            return subsite1.compareTo(subsite2);
        }
    };
    for (String key : detailPageBeans.keySet()) {
        result.add(Collections.max(detailPageBeans.get(key), pathComparator));
    }
    return result;
}

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From source file:com.tlongdev.bktf.adapter.HistoryAdapter.java

private void buildDataSet() {
    long first = Collections.min(mDataSet, priceAgeComparator).getLastUpdate();
    long last = Collections.max(mDataSet, priceAgeComparator).getLastUpdate();

    long days = TimeUnit.MILLISECONDS.toDays(last - first);

    int textColor = ContextCompat.getColor(mContext, R.color.text_primary);

    //Setup the X axis of the chart
    ArrayList<String> xValues = new ArrayList<>();

    SimpleDateFormat dateFormat = new SimpleDateFormat("dd/MM/yy", Locale.ENGLISH);

    for (long day = 0; day < days * 1.1; day++) {
        xValues.add(dateFormat.format(new Date(first + (day * 86400000L))));
    }//from  www  .jav  a 2 s  .  c o  m

    if (mDataSet.size() > 0) {
        ArrayList<Entry> entries = new ArrayList<>();

        for (Price price : mDataSet) {
            int day = (int) TimeUnit.MILLISECONDS.toDays(price.getLastUpdate() - first);
            entries.add(new Entry(
                    (float) price.getConvertedAveragePrice(mContext, mItem.getPrice().getCurrency()), day));
        }

        LineDataSet set = new LineDataSet(entries, mItem.getPrice().getCurrency());

        set.setColor(textColor);
        set.setCircleColor(textColor);
        set.setHighLightColor(textColor);
        set.setAxisDependency(YAxis.AxisDependency.LEFT);
        set.setDrawValues(false);

        //Add data to the chart
        mData = new LineData(xValues, set);
    }
}

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From source file:com.thoughtworks.gauge.Table.java

private int getMaxStringSize(List<String> candidates) {
    if (candidates == null || candidates.isEmpty()) {
        return -1;
    }//  w  w w  .ja  v a2  s . c  o  m
    return Collections.max(candidates, maxStringLength()).length();
}

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From source file:ddf.catalog.transformer.OverlayMetacardTransformer.java

public static List<Vector> calculateBoundingBox(List<Vector> boundary) {
    double maxLon = Collections.max(boundary, Comparator.comparing(v -> v.get(0))).get(0);
    double minLon = Collections.min(boundary, Comparator.comparing(v -> v.get(0))).get(0);
    double maxLat = Collections.max(boundary, Comparator.comparing(v -> v.get(1))).get(1);
    double minLat = Collections.min(boundary, Comparator.comparing(v -> v.get(1))).get(1);

    List<Vector> boundingBox = new ArrayList<>();
    boundingBox.add(new BasicVector(new double[] { minLon, maxLat }));
    boundingBox.add(new BasicVector(new double[] { maxLon, minLat }));

    return boundingBox;
}

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From source file:com.palantir.paxos.PaxosStateLogImpl.java

public long getExtremeLogEntry(Extreme extreme) {
    lock.lock();/* w w w.ja  va 2  s  .  co  m*/
    try {
        File dir = new File(path);
        List<File> files = getLogEntries(dir);
        if (files == null) {
            return PaxosAcceptor.NO_LOG_ENTRY;
        }

        try {
            File file = (extreme == Extreme.GREATEST) ? Collections.max(files, nameAsLongComparator())
                    : Collections.min(files, nameAsLongComparator());
            long seq = getSeqFromFilename(file);
            return seq;
        } catch (NoSuchElementException e) {
            return PaxosAcceptor.NO_LOG_ENTRY;
        }
    } finally {
        lock.unlock();
    }
}

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From source file:hu.ppke.itk.nlpg.purepos.MorphTagger.java

private IToken findBestLemma(IToken t, int position) {
    Collection<IToken> stems;
    if (Util.analysisQueue.hasAnal(position)) {
        stems = Util.analysisQueue.getAnalysises(position);
        stems = this.simplifyLemmata(stems);
        this.isLastGuessed = false;
    } else {//from www.  ja  va 2 s  .c om
        stems = analyzer.analyze(t);
        this.isLastGuessed = false;
    }

    Map<ILemmaTransformation<String, Integer>, Double> tagLogProbabilities = model.getLemmaGuesser()
            .getTagLogProbabilities(t.getToken());
    Map<IToken, Pair<ILemmaTransformation<String, Integer>, Double>> lemmaSuffixProbs = LemmaUtil
            .batchConvert(tagLogProbabilities, t.getToken(), model.getTagVocabulary());

    boolean useMorph = true;
    if (Util.isEmpty(stems)) {
        this.isLastGuessed = true;
        // the guesser is used
        useMorph = false;
        stems = lemmaSuffixProbs.keySet();
    }
    // matching tags
    Collection<IToken> possibleStems = new HashSet<IToken>();
    for (IToken ct : stems) {
        if (t.getTag().equals(ct.getTag())) {
            // possibleStems.add(new Token(ct.getToken(), ct.getStem(), ct
            // .getTag()));
            possibleStems.add(ct);
            // possibleStems.add(new Token(ct.getToken(), Util.toLower(ct
            // .getStem()), ct.getTag()));
        }
    }

    if (Util.isEmpty(possibleStems)) {
        // error handling
        return new Token(t.getToken(), t.getToken(), t.getTag());
    }

    // most frequrent stem
    IToken best;
    if (possibleStems.size() == 1 && !Util.isUpper(t.getToken())) {
        best = possibleStems.iterator().next();
    } else {

        if (stemFilter != null) {
            possibleStems = stemFilter.filterStem(possibleStems);
        }
        List<Pair<IToken, ILemmaTransformation<String, Integer>>> comp = new LinkedList<Pair<IToken, ILemmaTransformation<String, Integer>>>();
        for (IToken possTok : possibleStems) {
            Pair<ILemmaTransformation<String, Integer>, Double> pair = lemmaSuffixProbs.get(possTok);
            ILemmaTransformation<String, Integer> traf;
            if (pair != null) {
                traf = pair.getKey();

            } else {
                traf = LemmaUtil.defaultLemmaRepresentation(possTok, model.getData());
            }
            comp.add(Pair.of(possTok, traf));
            if (!useMorph) {
                IToken lowerTok = new Token(possTok.getToken(), Util.toLower(possTok.getStem()),
                        possTok.getTag());
                comp.add(Pair.of(lowerTok, traf));
            }

        }
        //try {
        best = Collections.max(comp, lemmaComparator).getKey();
        //} catch (Exception e) {
        //   System.err.println(t);
        //   return null;
        //}
    }
    IToken ret = decodeLemma(best);
    return ret;
}

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From source file:MainActivity.java

protected void takePicture(View view) {
    if (null == mCameraDevice) {
        return;/*from  w w  w  .  jav a 2 s . com*/
    }
    CameraManager manager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);
    try {
        CameraCharacteristics characteristics = manager.getCameraCharacteristics(mCameraDevice.getId());
        StreamConfigurationMap configurationMap = characteristics
                .get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
        if (configurationMap == null)
            return;
        Size largest = Collections.max(Arrays.asList(configurationMap.getOutputSizes(ImageFormat.JPEG)),
                new CompareSizesByArea());
        ImageReader reader = ImageReader.newInstance(largest.getWidth(), largest.getHeight(), ImageFormat.JPEG,
                1);
        List<Surface> outputSurfaces = new ArrayList<Surface>(2);
        outputSurfaces.add(reader.getSurface());
        outputSurfaces.add(new Surface(mTextureView.getSurfaceTexture()));
        final CaptureRequest.Builder captureBuilder = mCameraDevice
                .createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
        captureBuilder.addTarget(reader.getSurface());
        captureBuilder.set(CaptureRequest.CONTROL_MODE, CameraMetadata.CONTROL_MODE_AUTO);
        ImageReader.OnImageAvailableListener readerListener = new ImageReader.OnImageAvailableListener() {
            @Override
            public void onImageAvailable(ImageReader reader) {
                Image image = null;
                try {
                    image = reader.acquireLatestImage();
                    ByteBuffer buffer = image.getPlanes()[0].getBuffer();
                    byte[] bytes = new byte[buffer.capacity()];
                    buffer.get(bytes);
                    OutputStream output = new FileOutputStream(getPictureFile());
                    output.write(bytes);
                    output.close();
                } catch (FileNotFoundException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                } finally {
                    if (image != null) {
                        image.close();
                    }
                }
            }
        };
        HandlerThread thread = new HandlerThread("CameraPicture");
        thread.start();
        final Handler backgroudHandler = new Handler(thread.getLooper());
        reader.setOnImageAvailableListener(readerListener, backgroudHandler);
        final CameraCaptureSession.CaptureCallback captureCallback = new CameraCaptureSession.CaptureCallback() {
            @Override
            public void onCaptureCompleted(CameraCaptureSession session, CaptureRequest request,
                    TotalCaptureResult result) {
                super.onCaptureCompleted(session, request, result);
                Toast.makeText(MainActivity.this, "Picture Saved", Toast.LENGTH_SHORT).show();
                startPreview(session);
            }
        };
        mCameraDevice.createCaptureSession(outputSurfaces, new CameraCaptureSession.StateCallback() {
            @Override
            public void onConfigured(CameraCaptureSession session) {
                try {
                    session.capture(captureBuilder.build(), captureCallback, backgroudHandler);
                } catch (CameraAccessException e) {
                    e.printStackTrace();
                }
            }

            @Override
            public void onConfigureFailed(CameraCaptureSession session) {
            }
        }, backgroudHandler);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

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From source file:com.example.mediastock.util.Utilities.java

/**
 * Find most represented swatch of the palette, based on population.
 *//* w  w  w  .  j  av  a2 s. co  m*/
public static Palette.Swatch getDominantSwatch(Palette palette) {

    return Collections.max(palette.getSwatches(), new Comparator<Palette.Swatch>() {
        @Override
        public int compare(Palette.Swatch sw1, Palette.Swatch sw2) {
            return Integer.compare(sw1.getPopulation(), sw2.getPopulation());
        }
    });
}

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From source file:fm.last.moji.tracker.pool.MultiHostTrackerPool.java

private ManagedTrackerHost nextHost() throws TrackerException {
    return Collections.max(managedHosts, HostPriorityOrder.INSTANCE);
}

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