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:org.libreplan.web.planner.order.OrderPlanningModel.java

public static ZoomLevel calculateDefaultLevel(PlannerConfiguration<TaskElement> configuration) {
    if (configuration.getData().isEmpty()) {
        return ZoomLevel.DETAIL_ONE;
    }//from   w w w .j a va2s .  com
    TaskElement earliest = Collections.min(configuration.getData(), TaskElement.getByStartDateComparator());
    TaskElement latest = Collections.max(configuration.getData(),
            TaskElement.getByEndAndDeadlineDateComparator());

    LocalDate startDate = earliest.getStartAsLocalDate();
    LocalDate endDate = latest.getBiggestAmongEndOrDeadline();

    return ZoomLevel.getDefaultZoomByDates(startDate, endDate);
}

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From source file:de.bund.bfr.knime.pmmlite.core.PmmUtils.java

public static <T> T getMaxCounted(Collection<T> values) {
    return Collections.max(LinkedHashMultiset.create(values).entrySet(),
            (o1, o2) -> Integer.compare(o1.getCount(), o2.getCount())).getElement();
}

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From source file:net.sourceforge.fenixedu.domain.accounting.Receipt.java

private Integer generateReceiptNumber(int year) {
    final List<Receipt> receipts = getReceiptsFor(year);
    return receipts.isEmpty() ? 1
            : Collections.max(receipts, Receipt.COMPARATOR_BY_NUMBER).getReceiptNumber() + 1;
}

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From source file:com.jaspersoft.jasperserver.remote.services.impl.PermissionsServiceImpl.java

public ObjectPermission getEffectivePermission(Resource resource, Authentication authentication) {
    ObjectPermission permission = new ObjectPermissionImpl();
    permission.setPermissionRecipient(authentication.getPrincipal());
    BasicAclEntry[] effectiveAcls = (BasicAclEntry[]) aclService.getAcls(resource, authentication);

    if (effectiveAcls != null) {
        BasicAclEntry entry = Collections.max(Arrays.asList(effectiveAcls), aclCompartor);

        permission.setPermissionMask(entry.getMask());
        permission.setURI(extractUriFromEntry(entry));
    } else {//from   w ww.  ja  v  a  2s.com
        permission.setPermissionMask(JasperServerAclEntry.NOTHING);
    }
    return permission;
}

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From source file:com.google.uzaygezen.core.BoundedRollupTest.java

@Test
public void subtreeIsOptimalWithinConstraints() {
    final List<int[]> list = Lists.newArrayList();
    IntArrayCallback callback = new ListCollector(list);
    for (int n = 0; n < 3; ++n) {
        list.clear();// w  w  w.  j a v  a2 s  .com
        // Exact sum means that no array will be a prefix of another one.
        TestUtils.generateSpecWithExactSum(n, 2 * n, callback);
        Collections.sort(list, IntArrayComparator.INSTANCE);
        BoundedRollup<Integer, LongContent> rollup = BoundedRollup.create(TestUtils.ZERO_LONG_CONTENT,
                Integer.MAX_VALUE);
        MapNode<Integer, LongContent> fullTreeRoot = createTree(list, rollup);
        checkTreeIsComplete(list, n, fullTreeRoot);
        int fullTreeSize = fullTreeRoot.subtreeSizeAndLeafCount()[0];
        for (int i = 1; i <= fullTreeSize + 5; ++i) {
            List<List<MapNode<Integer, LongContent>>> allPossibleExpansions = allPossibleExpansions(
                    fullTreeRoot, i);
            BoundedRollup<Integer, LongContent> constrainedRollup = BoundedRollup
                    .create(TestUtils.ZERO_LONG_CONTENT, i);
            MapNode<Integer, LongContent> constrainedTreeRoot = createTree(list, constrainedRollup);
            List<MapNode<Integer, LongContent>> actual = constrainedTreeRoot.preorder();
            List<List<MapNode<Integer, LongContent>>> all = toSortedValueListList(allPossibleExpansions);
            List<MapNode<Integer, LongContent>> constrained = toSortedValueList(actual);
            List<List<MapNode<Integer, LongContent>>> allSameSize = Lists.newArrayList();
            for (List<MapNode<Integer, LongContent>> row : all) {
                Assert.assertTrue(row.size() <= constrained.size());
                if (row.size() == constrained.size()) {
                    allSameSize.add(row);
                }
            }
            Assert.assertEquals(Collections.max(allSameSize, new ListComparator<MapNode<Integer, LongContent>>(
                    new MapNodeValueComparator<Integer, LongContent>())), constrained);
        }
    }
}

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From source file:org.apache.storm.scheduler.utils.ArtifactoryConfigLoader.java

private String loadMostRecentArtifact(String location, String host, Integer port) {
    // Is this a directory or is it a file?
    JSONObject json = getArtifactMetadata(location, host, port);
    if (json == null) {
        LOG.error("got null metadata");
        return null;
    }/* w w w  .  j av  a 2  s. com*/
    String downloadURI = (String) json.get("downloadUri");

    // This means we are pointing at a file.
    if (downloadURI != null) {
        // Then get it and return the file as string.
        String returnValue = doGet(null, location, host, port);
        saveInArtifactoryCache(returnValue);
        return returnValue;
    }

    // This should mean that we were pointed at a directory.  
    // Find the most recent child and load that.
    JSONArray msg = (JSONArray) json.get("children");
    if (msg == null || msg.size() == 0) {
        LOG.error("Expected directory children not present");
        return null;
    }
    JSONObject newest = (JSONObject) Collections.max(msg, new DirEntryCompare());
    if (newest == null) {
        LOG.error("Failed to find most recent artifact uri in {}", location);
        return null;
    }

    String uri = (String) newest.get("uri");
    if (uri == null) {
        LOG.error("Expected directory uri not present");
        return null;
    }
    String returnValue = doGet(null, location + uri, host, port);
    saveInArtifactoryCache(returnValue);
    return returnValue;
}

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From source file:com.example.camera2apidemo.Camera2Fragment.java

private String setUpCameraOutputs(int width, int height) {
    Activity activity = getActivity();//from   www  .ja  v a 2 s  . co m
    CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE);
    try {
        for (String cameraId : manager.getCameraIdList()) {
            CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);

            // ??? We don't use a front facing camera in this sample.
            Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING);
            if (facing != null && facing == CameraCharacteristics.LENS_FACING_FRONT) {
                continue;
            }

            //              ??  ??
            StreamConfigurationMap map = characteristics
                    .get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
            if (map == null) {
                continue;
            }
            // For still image captures, we use the largest available size.
            Size largest = Collections.max(Arrays.asList(map.getOutputSizes(ImageFormat.JPEG)),
                    new CompareSizesByArea());

            mImageReader = ImageReader.newInstance(largest.getWidth(), largest.getHeight(), ImageFormat.JPEG,
                    /*maxImages*/2);
            mImageReader.setOnImageAvailableListener(mOnImageAvailableListener, mBackgroundHandler);

            // Check if the flash is supported.
            Boolean available = characteristics.get(CameraCharacteristics.FLASH_INFO_AVAILABLE);
            mFlashSupported = available == null ? false : available;

            return cameraId;
        }
    } catch (CameraAccessException e) {
        e.printStackTrace();
    } catch (NullPointerException e) {
        // Currently an NPE is thrown when the Camera2API is used but not supported on the
        // device this code runs.
        //            ErrorDialog.newInstance(getString(R.string.camera_error))
        //                    .show(getChildFragmentManager(), FRAGMENT_DIALOG);
    }
    return null;
}

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From source file:norbert.mynemo.core.selection.RecommenderSelector.java

/**
 * Removes from the given collection all evaluations that are significantly worst. The left
 * evaluations are non significantly different.
 *///from w  w  w  .ja v  a  2  s.co  m
private void retainBestEvaluations(Collection<RecommenderEvaluation> evaluations) {
    checkNotNull(evaluations);

    EvaluationComparator comparator = new EvaluationComparator(metric);
    Collection<RecommenderEvaluation> rejectedEvaluations = new ArrayList<>();

    for (RecommenderEvaluation evalA : evaluations) {
        for (RecommenderEvaluation evalB : evaluations) {
            if (areSignificantlyDifferent(evalA, evalB)) {
                rejectedEvaluations.add(Collections.max(newArrayList(evalA, evalB), comparator));
            }
        }
    }

    evaluations.removeAll(rejectedEvaluations);
}

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From source file:com.raulh82vlc.face_detection_sample.camera2.presentation.FDCamera2Presenter.java

/**
 * Sets up member variables related to camera.
 *
 * @param width  The width of available size for camera preview
 * @param height The height of available size for camera preview
 *//*from   w  w  w .  ja v a  2  s.  c  om*/
private void setUpCameraOutputs(int width, int height) {
    if (isViewAvailable()) {
        CameraManager manager = (CameraManager) activityView.getSystemService(Context.CAMERA_SERVICE);
        try {
            for (String cameraId : manager.getCameraIdList()) {
                CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);

                // We don't use a front facing camera in this sample.
                Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING);
                if (facing != null && facing == CameraCharacteristics.LENS_FACING_FRONT) {
                    continue;
                }

                StreamConfigurationMap map = characteristics
                        .get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
                if (map == null) {
                    continue;
                }

                imageDimension = map.getOutputSizes(SurfaceTexture.class)[0];

                // For still image captures, we use the largest available size.
                Size largest = Collections.max(Arrays.asList(map.getOutputSizes(ImageFormat.JPEG)),
                        new CompareSizesByArea());

                Point displaySize = new Point();
                activityView.getWindowManager().getDefaultDisplay().getSize(displaySize);
                int rotatedPreviewWidth = width;
                int rotatedPreviewHeight = height;
                int maxPreviewWidth = displaySize.x;
                int maxPreviewHeight = displaySize.y;

                if (maxPreviewWidth > MAX_PREVIEW_WIDTH) {
                    maxPreviewWidth = MAX_PREVIEW_WIDTH;
                }

                if (maxPreviewHeight > MAX_PREVIEW_HEIGHT) {
                    maxPreviewHeight = MAX_PREVIEW_HEIGHT;
                }

                // Danger, W.R.! Attempting to use too large a preview size could  exceed the camera
                // bus' bandwidth limitation, resulting in gorgeous previews but the storage of
                // garbage capture data.
                previewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class), rotatedPreviewWidth,
                        rotatedPreviewHeight, maxPreviewWidth, maxPreviewHeight, largest);

                // We fit the aspect ratio of TextureView to the size of preview we picked.
                int orientation = activityView.getResources().getConfiguration().orientation;
                if (orientation == Configuration.ORIENTATION_LANDSCAPE) {
                    activityView.getTextureView().setAspectRatio(previewSize.getWidth(),
                            previewSize.getHeight());
                } else {
                    activityView.getTextureView().setAspectRatio(previewSize.getHeight(),
                            previewSize.getWidth());
                }
                return;
            }
        } catch (CameraAccessException e) {
            e.printStackTrace();
        } catch (NullPointerException e) {
            // Currently an NPE is thrown when the Camera2API is used but not supported on the
            // device this code runs.
        }
    }
}

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From source file:org.libreplan.business.planner.entities.allocationalgorithms.UntilFillingHoursAllocator.java

private EffortDuration getMaxAssignment(List<? extends DayAssignment> newAssignments) {
    if (newAssignments.isEmpty()) {
        return zero();
    }/* ww  w . ja  v a2 s .c  om*/
    DayAssignment max = Collections.max(newAssignments, DayAssignment.byDurationComparator());
    return max.getDuration();
}

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