Example usage for javafx.collections FXCollections emptyObservableList

List of usage examples for javafx.collections FXCollections emptyObservableList

Introduction

In this page you can find the example usage for javafx.collections FXCollections emptyObservableList.

Prototype

@SuppressWarnings("unchecked")
public static <E> ObservableList<E> emptyObservableList() 

Source Link

Document

Creates an empty unmodifiable observable list.

Usage

From source file:Main.java

private TreeItem<File> createNode(final File f) {
    return new TreeItem<File>(f) {
        private boolean isLeaf;
        private boolean isFirstTimeChildren = true;
        private boolean isFirstTimeLeaf = true;

        @Override//www.j av a2 s. co m
        public ObservableList<TreeItem<File>> getChildren() {
            if (isFirstTimeChildren) {
                isFirstTimeChildren = false;
                super.getChildren().setAll(buildChildren(this));
            }
            return super.getChildren();
        }

        @Override
        public boolean isLeaf() {
            if (isFirstTimeLeaf) {
                isFirstTimeLeaf = false;
                File f = (File) getValue();
                isLeaf = f.isFile();
            }
            return isLeaf;
        }

        private ObservableList<TreeItem<File>> buildChildren(TreeItem<File> TreeItem) {
            File f = TreeItem.getValue();
            if (f == null) {
                return FXCollections.emptyObservableList();
            }
            if (f.isFile()) {
                return FXCollections.emptyObservableList();
            }
            File[] files = f.listFiles();
            if (files != null) {
                ObservableList<TreeItem<File>> children = FXCollections.observableArrayList();
                for (File childFile : files) {
                    children.add(createNode(childFile));
                }
                return children;
            }
            return FXCollections.emptyObservableList();
        }
    };
}

From source file:Main.java

private TreeItem<File> createNode(final File f) {
    return new TreeItem<File>(f) {
        private boolean isLeaf;
        private boolean isFirstTimeChildren = true;
        private boolean isFirstTimeLeaf = true;

        @Override//from ww w . j  av a  2s.  c  o  m
        public ObservableList<TreeItem<File>> getChildren() {
            if (isFirstTimeChildren) {
                isFirstTimeChildren = false;
                super.getChildren().setAll(buildChildren(this));
            }
            return super.getChildren();
        }

        @Override
        public boolean isLeaf() {
            if (isFirstTimeLeaf) {
                isFirstTimeLeaf = false;
                File f = (File) getValue();
                isLeaf = f.isFile();
            }

            return isLeaf;
        }

        private ObservableList<TreeItem<File>> buildChildren(TreeItem<File> TreeItem) {
            File f = TreeItem.getValue();
            if (f != null && f.isDirectory()) {
                File[] files = f.listFiles();
                if (files != null) {
                    ObservableList<TreeItem<File>> children = FXCollections.observableArrayList();

                    for (File childFile : files) {
                        children.add(createNode(childFile));
                    }

                    return children;
                }
            }

            return FXCollections.emptyObservableList();
        }
    };
}

From source file:musicmetadatak1009705.FolderTreeView.java

private TreeItem<File> createNode(final File f) {
    return new TreeItem<File>(f) {
        private boolean isLeaf;
        private boolean isFirstTimeChildren = true;
        private boolean isFirstTimeLeaf = true;

        @Override/* ww w  . j  a v  a2  s.  c o  m*/
        public ObservableList<TreeItem<File>> getChildren() {
            if (isFirstTimeChildren) {
                isFirstTimeChildren = false;
                super.getChildren().setAll(buildChildren(this));
            }
            return super.getChildren();
        }

        @Override
        public boolean isLeaf() {
            if (isFirstTimeLeaf) {
                isFirstTimeLeaf = false;
                File f = (File) getValue();
                isLeaf = f.isFile();
            }
            return isLeaf;
        }

        private ObservableList<TreeItem<File>> buildChildren(TreeItem<File> TreeItem) {
            File f = TreeItem.getValue();
            if (f == null) {
                return FXCollections.emptyObservableList();
            }
            if (f.isFile()) {
                return FXCollections.emptyObservableList();
            }
            File[] files = f.listFiles();
            if (files != null) {
                ObservableList<TreeItem<File>> children = FXCollections.observableArrayList();
                for (File childFile : files) {
                    //System.out.println("Adding " + childFile.getAbsolutePath());
                    if (childFile.isDirectory()) {
                        children.add(createNode(childFile));
                    }
                }
                return children;
            }
            return FXCollections.emptyObservableList();
        }
    };
}

From source file:acmi.l2.clientmod.l2smr.Controller.java

@Override
public void initialize(URL url, ResourceBundle resourceBundle) {
    stageProperty().addListener(observable -> initializeKeyCombinations());

    this.l2Path.textProperty().bind(
            Bindings.when(l2DirProperty().isNotNull()).then(Bindings.convert(l2DirProperty())).otherwise(""));

    initializeUnr();//w  ww  .  ja  v a 2  s.  co  m
    initializeUsx();

    this.filterPane.setExpanded(false);
    this.filterPane.setDisable(true);

    this.smaPane.setDisable(true);

    table.itemsProperty().bind(Bindings.createObjectBinding(() -> {
        if (actors.get() == null)
            return FXCollections.emptyObservableList();

        return FXCollections
                .observableArrayList(
                        actors.get().stream()
                                .filter(actor -> !rotatable.isSelected() || actor.getRotation() != null)
                                .filter(actor -> !scalable.isSelected() || actor.getScale() != null
                                        || actor.getScale3D() != null)
                                .filter(actor -> !rotating.isSelected() || actor.getRotationRate() != null)
                                .filter(actor -> filterStaticMesh.getText() == null
                                        || filterStaticMesh.getText().isEmpty()
                                        || actor.getStaticMesh().toLowerCase()
                                                .contains(filterStaticMesh.getText().toLowerCase()))
                                .filter(actor -> {
                                    Double x = getDoubleOrClearTextField(filterX);
                                    Double y = getDoubleOrClearTextField(filterY);
                                    Double z = getDoubleOrClearTextField(filterZ);
                                    Double range = getDoubleOrClearTextField(filterRange);

                                    return range == null || range(actor.getLocation(), x, y, z) < range;
                                }).collect(Collectors.toList()));
    }, actors, filterStaticMesh.textProperty(), filterX.textProperty(), filterY.textProperty(),
            filterZ.textProperty(), filterRange.textProperty(), rotatable.selectedProperty(),
            scalable.selectedProperty(), rotating.selectedProperty()));
}

From source file:com.ggvaidya.scinames.ui.DataReconciliatorController.java

private void reconcileDataFromOneDataset() {
    Project project = dataReconciliatorView.getProjectView().getProject();
    String reconciliationMethod = reconcileUsingComboBox.getValue();
    Table<String, String, Set<String>> precalc = HashBasedTable.create();

    Dataset namesDataset = useNamesFromComboBox.getSelectionModel().getSelectedItem();
    List<NameCluster> nameClusters = null;
    List<Name> namesInDataset = null;

    // Set up namesInDataset.
    switch (namesToUseComboBox.getValue()) {
    case USE_NAMES_IN_DATASET_ROWS:
        if (namesDataset == ALL) {
            namesInDataset = project.getDatasets().stream().flatMap(ds -> ds.getNamesInAllRows().stream())
                    .distinct().sorted().collect(Collectors.toList());
        } else {//from   w  w  w . j a  v a2  s. c o  m
            namesInDataset = namesDataset.getNamesInAllRows().stream().sorted().distinct()
                    .collect(Collectors.toList());
        }
        break;

    case USE_ALL_REFERENCED_NAMES:
        if (namesDataset == ALL) {
            namesInDataset = project.getDatasets().stream().flatMap(ds -> ds.getReferencedNames()).distinct()
                    .sorted().collect(Collectors.toList());
        } else {
            namesInDataset = namesDataset.getReferencedNames().sorted().collect(Collectors.toList());
        }

        break;

    case USE_ALL_RECOGNIZED_NAMES:
        if (namesDataset == ALL) {
            namesInDataset = project.getDatasets().stream()
                    .flatMap(ds -> project.getRecognizedNames(ds).stream()).distinct().sorted()
                    .collect(Collectors.toList());
        } else {
            namesInDataset = project.getRecognizedNames(namesDataset).stream().sorted()
                    .collect(Collectors.toList());
        }

        break;
    }

    // IMPORTANT NOTE
    // This algorithm now relies on nameClusters and namesInDataset
    // having EXACTLY the same size. So please make sure every combination
    // of logic here lines up exactly.

    boolean flag_nameClustersAreTaxonConcepts = false;
    switch (reconciliationMethod) {
    case RECONCILE_BY_NAME:
        // namesInDataset already has all the names we want.

        nameClusters = createSingleNameClusters(namesDataset, namesInDataset);

        break;

    case RECONCILE_BY_SPECIES_NAME:
        namesInDataset = namesInDataset.stream().filter(n -> n.hasSpecificEpithet())
                .flatMap(n -> n.asBinomial()).distinct().sorted().collect(Collectors.toList());

        nameClusters = createSingleNameClusters(namesDataset, namesInDataset);

        break;

    case RECONCILE_BY_SPECIES_NAME_CLUSTER:
        // nameClusters = project.getNameClusterManager().getSpeciesClustersAfterFiltering(project).collect(Collectors.toList());

        namesInDataset = namesInDataset.stream().filter(n -> n.hasSpecificEpithet())
                .flatMap(n -> n.asBinomial()).distinct().sorted().collect(Collectors.toList());

        nameClusters = project.getNameClusterManager().getClusters(namesInDataset);

        break;

    case RECONCILE_BY_NAME_CLUSTER:
        // Note that this includes genus name clusters!
        nameClusters = project.getNameClusterManager().getClusters(namesInDataset);

        break;

    case RECONCILE_BY_SPECIES_TAXON_CONCEPT:
        /*
         * WARNING: untested! Please test before using!
         */

        List<NameCluster> nameClustersByName = project.getNameClusterManager().getClusters(namesInDataset);

        List<Name> namesInDatasetCorresponding = new LinkedList<>();
        List<NameCluster> nameClustersCorresponding = new LinkedList<>();

        for (int x = 0; x < namesInDataset.size(); x++) {
            Name name = namesInDataset.get(0);
            NameCluster nameCluster = nameClustersByName.get(0);
            List<TaxonConcept> taxonConcepts;

            if (nameCluster == null) {
                taxonConcepts = new ArrayList<>();
            } else {
                taxonConcepts = nameCluster.getTaxonConcepts(project);
            }

            // Now we need to unwind this data structure: each entry in nameClusters  
            // should have a corresponding entry in namesInDataset.
            for (TaxonConcept tc : taxonConcepts) {
                namesInDatasetCorresponding.add(name);
                nameClustersCorresponding.add((NameCluster) tc);
            }
        }

        // All good? Let's swap in those variables to replace their actual counterparts.
        namesInDataset = namesInDatasetCorresponding;
        nameClusters = nameClustersCorresponding;

        // This is special, at least for now. Maybe some day it won't?
        flag_nameClustersAreTaxonConcepts = true;

        break;

    default:
        LOGGER.log(Level.SEVERE, "Reconciliation method ''{0}'' has not yet been implemented!",
                reconciliationMethod);
        return;
    }

    if (nameClusters == null) {
        dataTableView.setItems(FXCollections.emptyObservableList());
        return;
    }

    LOGGER.info("Name clusters ready to display: " + nameClusters.size() + " clusters");
    LOGGER.info("Based on " + namesInDataset.size() + " names from " + namesDataset + ": " + namesInDataset);

    // What columns do we have from the other dataset?
    Dataset dataDataset = includeDataFromComboBox.getSelectionModel().getSelectedItem();
    List<Dataset> datasets = null;
    if (dataDataset == ALL)
        datasets = project.getDatasets();
    else if (dataDataset == NONE)
        datasets = new ArrayList<>();
    else
        datasets = Arrays.asList(dataDataset);

    // Precalculate.
    List<String> existingColNames = new ArrayList<>();
    existingColNames.add("id");
    existingColNames.add("name");
    existingColNames.add("names_in_dataset");
    existingColNames.add("all_names_in_cluster");
    existingColNames.add("dataset_rows_for_name");
    existingColNames.add("name_cluster_id");
    // existingColNames.add("distinct_dataset_rows_for_name");

    // If these are taxon concepts, there's three other columns we want
    // to emit.
    if (flag_nameClustersAreTaxonConcepts) {
        existingColNames.add("starts_with");
        existingColNames.add("ends_with");
        existingColNames.add("is_ongoing");
    } else {
        existingColNames.add("taxon_concept_count");
        existingColNames.add("taxon_concepts");
        existingColNames.add("trajectory");
        existingColNames.add("trajectory_without_renames");
        existingColNames.add("trajectory_lumps_splits");
    }

    existingColNames.add("first_added_dataset");
    existingColNames.add("first_added_year");

    existingColNames.add("reconciliation_duplicate_of");

    // Precalculate all dataset rows.
    Map<Name, Set<DatasetRow>> datasetRowsByName = new HashMap<>();
    for (Dataset ds : datasets) {
        Map<Name, Set<DatasetRow>> rowsByName = ds.getRowsByName();

        // Merge into the main list.
        for (Name n : rowsByName.keySet()) {
            Set<DatasetRow> rows = rowsByName.get(n);

            if (!reconciliationMethod.equals(RECONCILE_BY_NAME)) {
                // If we're reconciling by binomial names, then
                // we should include binomial names for each row, too.
                Optional<Name> binomialName = n.asBinomial().findAny();
                if (binomialName.isPresent()) {
                    Set<DatasetRow> rowsForBinomial = rowsByName.get(binomialName.get());
                    if (rowsForBinomial != null)
                        rows.addAll(rowsForBinomial);

                    // Don't write this to the sub-binomial name,
                    // just write to the binomial name.
                    n = binomialName.get();
                }
            }

            if (!datasetRowsByName.containsKey(n))
                datasetRowsByName.put(n, new HashSet<>());

            datasetRowsByName.get(n).addAll(rows);
        }
    }

    LOGGER.info("Precalculating all dataset rows");

    // Finally, come up with unique names for every dataset we might have.
    Map<DatasetColumn, String> datasetColumnMap = new HashMap<>();

    existingColNames.addAll(datasets.stream().flatMap(ds -> ds.getColumns().stream()).distinct().map(col -> {
        String colName = col.getName();
        String baseName = colName;

        int uniqueCounter = 0;
        while (existingColNames.contains(colName)) {
            // Duplicate column name! Map it elsewhere.
            uniqueCounter++;
            colName = baseName + "." + uniqueCounter;
        }

        // Where did we map it to?
        datasetColumnMap.put(col, colName);

        // Okay, now return the new column name we need to create.
        return colName;
    }).collect(Collectors.toList()));

    LOGGER.info("Precalculating " + nameClusters.size() + " name clusters");

    // Make sure names and name clusters are unique, otherwise bail.
    // Earlier this was being ensured by keeping namesInDataset as a
    // Set, but since it's a List now, duplicates might sneak in.
    assert (namesInDataset.size() == new HashSet<>(namesInDataset).size());

    // Since it's a list, we can set it up so that it always corresponds to
    // the correct name cluster.
    assert (namesInDataset.size() == nameClusters.size());

    // Now, nameClusters should NOT be de-duplicated: we might have the same
    // cluster appear multiple times! If so, we'll set 
    // "reconciliation_duplicate_of" to point to the first reconciliation,
    // so we don't duplicate reconciliations.

    // Let's track which IDs we use for duplicated name clusters.
    Map<NameCluster, List<String>> idsForNameClusters = new HashMap<>();

    if (nameClusters.size() != new HashSet<>(nameClusters).size()) {

        LOGGER.warning("Clusters not unique: " + nameClusters.size() + " clusters found, but only "
                + new HashSet<>(nameClusters).size() + " are unique.");
    }

    // Track duplicates.
    Map<NameCluster, List<String>> clusterIDsPerNameCluster = new HashMap<>();

    int totalClusterCount = nameClusters.size();
    int currentClusterCount = 0;
    List<String> nameClusterIDs = new LinkedList<>();
    for (NameCluster cluster : nameClusters) {
        currentClusterCount++;

        // Probably don't need GUIDs here, right?
        String clusterID = String.valueOf(currentClusterCount);
        nameClusterIDs.add(clusterID);

        LOGGER.info("(" + currentClusterCount + "/" + totalClusterCount + ") Precalculating name cluster: "
                + cluster);

        precalc.put(clusterID, "id", getOneElementSet(clusterID));
        precalc.put(clusterID, "name_cluster_id", getOneElementSet(cluster.getId().toString()));

        // The 'name' should come from namesInDataset.
        precalc.put(clusterID, "name",
                getOneElementSet(namesInDataset.get(currentClusterCount - 1).getFullName()));

        // Okay, here's what we need to do:
        //   - If names is ALL, then we can't do better than cluster.getName().
        if (namesDataset == ALL) {
            precalc.put(clusterID, "names_in_dataset",
                    cluster.getNames().stream().map(n -> n.getFullName()).collect(Collectors.toSet()));
        } else {
            // hey, here's something cool we can do: figure out which name(s)
            // this dataset uses from this cluster!
            Set<Name> namesToFilterTo = new HashSet<>(namesInDataset);

            List<String> namesInCluster = cluster.getNames().stream().filter(n -> namesToFilterTo.contains(n))
                    .map(n -> n.getFullName()).collect(Collectors.toList());

            precalc.put(clusterID, "names_in_dataset", new HashSet<>(namesInCluster));
        }

        precalc.put(clusterID, "all_names_in_cluster",
                cluster.getNames().stream().map(n -> n.getFullName()).collect(Collectors.toSet()));

        // Is this a duplicate?
        if (clusterIDsPerNameCluster.containsKey(cluster)) {
            List<String> duplicatedRows = clusterIDsPerNameCluster.get(cluster);

            // Only the first one should have the actual data.

            precalc.put(clusterID, "reconciliation_duplicate_of", getOneElementSet(duplicatedRows.get(0)));
            duplicatedRows.add(clusterID);

            // Okay, do no other work on this cluster, since all the actual information is
            // in the other entry.
            continue;

        } else {
            precalc.put(clusterID, "reconciliation_duplicate_of", getOneElementSet("NA"));

            List<String> clusterIds = new LinkedList<>();
            clusterIds.add(clusterID);
            clusterIDsPerNameCluster.put(cluster, clusterIds);
        }

        LOGGER.fine("Cluster calculation began for " + cluster);

        // If it's a taxon concept, precalculate a few more columns.
        if (flag_nameClustersAreTaxonConcepts) {
            TaxonConcept tc = (TaxonConcept) cluster;

            precalc.put(clusterID, "starts_with",
                    tc.getStartsWith().stream().map(ch -> ch.toString()).collect(Collectors.toSet()));
            precalc.put(clusterID, "ends_with",
                    tc.getEndsWith().stream().map(ch -> ch.toString()).collect(Collectors.toSet()));
            precalc.put(clusterID, "is_ongoing", getOneElementSet(tc.isOngoing(project) ? "yes" : "no"));
        } else {
            // If it's a true name cluster, then perhaps people will want
            // to know what taxon concepts are in here? Maybe for some sort
            // of PhD?
            List<TaxonConcept> tcs = cluster.getTaxonConcepts(project);

            precalc.put(clusterID, "taxon_concept_count", getOneElementSet(String.valueOf(tcs.size())));
            precalc.put(clusterID, "taxon_concepts",
                    tcs.stream().map(tc -> tc.toString()).collect(Collectors.toSet()));
        }

        LOGGER.fine("Cluster calculation ended for " + cluster);

        // When was this first added?
        List<Dataset> foundInSorted = cluster.getFoundInSortedWithDates();
        if (!foundInSorted.isEmpty()) {
            precalc.put(clusterID, "first_added_dataset", getOneElementSet(foundInSorted.get(0).getCitation()));
            precalc.put(clusterID, "first_added_year",
                    getOneElementSet(foundInSorted.get(0).getDate().getYearAsString()));
        }

        LOGGER.fine("Trajectory began for " + cluster);

        // For name clusters we can also figure out trajectories!
        if (!flag_nameClustersAreTaxonConcepts) {
            List<String> trajectorySteps = cluster.getFoundInSortedWithDates().stream().map(dataset -> {
                String changes = dataset.getChanges(project).filter(ch -> cluster.containsAny(ch.getAllNames()))
                        .map(ch -> ch.getType().toString()).collect(Collectors.joining("|"));
                if (!changes.isEmpty())
                    return changes;

                // This can happen when a change is referenced without an explicit addition.
                if (cluster.containsAny(dataset.getReferencedNames().collect(Collectors.toList())))
                    return "referenced";
                else
                    return "missing";
            }).collect(Collectors.toList());

            precalc.put(clusterID, "trajectory", getOneElementSet(String.join(" -> ", trajectorySteps)));

            precalc.put(clusterID, "trajectory_without_renames", getOneElementSet(trajectorySteps.stream()
                    .filter(ch -> !ch.contains("rename")).collect(Collectors.joining(" -> "))));

            precalc.put(clusterID, "trajectory_lumps_splits",
                    getOneElementSet(
                            trajectorySteps.stream().filter(ch -> ch.contains("split") || ch.contains("lump"))
                                    .collect(Collectors.joining(" -> "))));
        }

        LOGGER.fine("Trajectory ended for " + cluster);

        // Okay, here's where we reconcile!
        LOGGER.fine("Reconciliation began for " + cluster);

        // Now we need to actually reconcile the data from these unique row objects.
        Set<DatasetRow> allDatasetRowsCombined = new HashSet<>();

        for (Name name : cluster.getNames()) {
            // We don't have to convert cluster names to binomial,
            // because the cluster formation -- or the hacky thing we do
            // for RECONCILE_SPECIES_NAME -- should already have done that!
            //
            // Where necessary, the previous code will automatically
            // set up datasetRowsByName so it matched binomial names.
            Set<DatasetRow> rowsToReconcile = datasetRowsByName.get(name);
            if (rowsToReconcile == null)
                continue;

            allDatasetRowsCombined.addAll(rowsToReconcile);

            Set<DatasetColumn> columns = rowsToReconcile.stream().flatMap(row -> row.getColumns().stream())
                    .collect(Collectors.toSet());

            for (DatasetColumn col : columns) {
                // We've precalculated column names.
                String colName = datasetColumnMap.get(col);

                // Make sure we get this column down into 'precalc'. 
                if (!precalc.contains(clusterID, colName))
                    precalc.put(clusterID, colName, new HashSet<>());

                // Add all values for all rows in this column.
                Set<String> vals = rowsToReconcile.stream().flatMap(row -> {
                    if (!row.hasColumn(col))
                        return Stream.empty();
                    else
                        return Stream.of(row.get(col));
                }).collect(Collectors.toSet());

                precalc.get(clusterID, colName).addAll(vals);

                LOGGER.fine("Added " + vals.size() + " rows under name cluster '" + cluster + "'");
            }
        }

        LOGGER.info("(" + currentClusterCount + "/" + totalClusterCount + ") Reconciliation completed for "
                + cluster);

        precalc.put(clusterID, "dataset_rows_for_name", getOneElementSet(allDatasetRowsCombined.size()));
    }

    // Set up table items.
    dataTableView.setItems(FXCollections.observableList(nameClusterIDs));

    LOGGER.info("Setting up columns: " + existingColNames);

    dataTableView.getColumns().clear();
    for (String colName : existingColNames) {
        dataTableView.getColumns().add(createColumnFromPrecalc(colName, precalc));
    }

    // Get distinct column names.
    Stream<String> colNames = precalc.cellSet().stream().map(set -> set.getColumnKey());

    // Eliminate columns that are in the existingColNames.
    colNames = colNames.filter(colName -> !existingColNames.contains(colName));

    // And add tablecolumns for the rest.
    List<TableColumn<String, String>> cols = colNames.distinct().sorted()
            .map(colName -> createColumnFromPrecalc(colName, precalc)).collect(Collectors.toList());
    dataTableView.getColumns().addAll(cols);
    dataTableView.refresh();

    // Fill in status text field.
    long distinctNameCount = precalc.cellSet().stream().map(cluster -> precalc.get(cluster, "name")).distinct()
            .count();
    String str_duplicates = "";
    if (distinctNameCount != dataTableView.getItems().size()) {
        str_duplicates = " for " + distinctNameCount + " distinct names";
    }

    statusTextField.setText(dataTableView.getItems().size() + " rows across " + cols.size()
            + " reconciled columns" + str_duplicates);

    LOGGER.info("All done!");
}

From source file:jduagui.Controller.java

private TreeItem<File> createNode(final File f) {
    return new TreeItem<File>(f) {
        private boolean isLeaf;
        private boolean isFirstTimeChildren = true;
        private boolean isFirstTimeLeaf = true;

        @Override/*  w w w .  j  a  va 2s  . c  om*/
        public ObservableList<TreeItem<File>> getChildren() {
            if (isFirstTimeChildren) {
                isFirstTimeChildren = false;
                super.getChildren().setAll(buildChildren(this));
            }
            return super.getChildren();
        }

        @Override
        public boolean isLeaf() {
            if (isFirstTimeLeaf) {
                isFirstTimeLeaf = false;
                File f = (File) getValue();
                isLeaf = f.isFile();
            }
            return isLeaf;
        }

        private ObservableList<TreeItem<File>> buildChildren(TreeItem<File> TreeItem) {
            File f = TreeItem.getValue();
            if (f != null && f.isDirectory() && (!f.getAbsolutePath().equals("/proc/"))) {
                File[] files = f.listFiles();
                if (files != null) {
                    ObservableList<TreeItem<File>> children = FXCollections.observableArrayList();
                    for (File childFile : files) {
                        children.add(createNode(childFile));
                    }
                    return children;
                }
            }
            return FXCollections.emptyObservableList();
        }
    };
}

From source file:com.ggvaidya.scinames.complexquery.ComplexQueryViewController.java

public void updateTableWithNameClusters(Project project, List<NameCluster> nameClusters,
        List<Dataset> datasets) {
    Table<NameCluster, String, Set<String>> precalc = HashBasedTable.create();

    if (nameClusters == null) {
        dataTableView.setItems(FXCollections.emptyObservableList());
        return;/*from   w  w  w  . ja v a2 s .  co m*/
    }
    boolean flag_nameClustersAreTaxonConcepts = false;

    if (nameClusters.size() > 0 && TaxonConcept.class.isAssignableFrom(nameClusters.get(0).getClass()))
        flag_nameClustersAreTaxonConcepts = true;
    dataTableView.setItems(FXCollections.observableList(nameClusters));

    // Precalculate.
    List<String> existingColNames = new ArrayList<>();
    existingColNames.add("id");
    existingColNames.add("name");
    existingColNames.add("names_in_dataset");
    existingColNames.add("all_names_in_cluster");

    // If these are taxon concepts, there's three other columns we want
    // to emit.
    if (flag_nameClustersAreTaxonConcepts) {
        existingColNames.add("name_cluster_id");
        existingColNames.add("starts_with");
        existingColNames.add("ends_with");
        existingColNames.add("is_ongoing");
    } else {
        existingColNames.add("taxon_concept_count");
        existingColNames.add("taxon_concepts");
    }

    // Set<Name> recognizedNamesInDataset = namesDataset.getRecognizedNames(project).collect(Collectors.toSet());

    for (NameCluster cluster : nameClusters) {
        precalc.put(cluster, "id", getOneElementSet(cluster.getId().toString()));

        // Okay, here's what we need to do:
        //   - If names is ALL, then we can't do better than cluster.getName().
        // if(namesDataset == ALL) {
        precalc.put(cluster, "names_in_dataset",
                cluster.getNames().stream().map(n -> n.getFullName()).collect(Collectors.toSet()));
        precalc.put(cluster, "name", getOneElementSet(cluster.getName().getFullName()));
        //} else {
        /*
           // hey, here's something cool we can do: figure out which name(s)
           // this dataset uses from this cluster!
           List<String> namesInDataset = cluster.getNames().stream()
              .filter(n -> recognizedNamesInDataset.contains(n))
              .map(n -> n.getFullName())
              .collect(Collectors.toList());
           String firstName = "";
           if(namesInDataset.size() > 0)
              firstName = namesInDataset.get(0);
                   
           precalc.put(cluster, "names_in_dataset", new HashSet<>(namesInDataset));
           precalc.put(cluster, "name", getOneElementSet(firstName));            
        }*/

        precalc.put(cluster, "all_names_in_cluster",
                cluster.getNames().stream().map(n -> n.getFullName()).collect(Collectors.toSet()));

        // If it's a taxon concept, precalculate a few more columns.
        if (flag_nameClustersAreTaxonConcepts) {
            TaxonConcept tc = (TaxonConcept) cluster;

            precalc.put(cluster, "name_cluster_id", getOneElementSet(tc.getNameCluster().getId().toString()));
            precalc.put(cluster, "starts_with",
                    tc.getStartsWith().stream().map(ch -> ch.toString()).collect(Collectors.toSet()));
            precalc.put(cluster, "ends_with",
                    tc.getEndsWith().stream().map(ch -> ch.toString()).collect(Collectors.toSet()));
            precalc.put(cluster, "is_ongoing", getOneElementSet(tc.isOngoing(project) ? "yes" : "no"));
        } else {
            // If it's a true name cluster, then perhaps people will want
            // to know what taxon concepts are in here? Maybe for some sort
            // of PhD?
            List<TaxonConcept> tcs = cluster.getTaxonConcepts(project);

            precalc.put(cluster, "taxon_concept_count", getOneElementSet(String.valueOf(tcs.size())));
            precalc.put(cluster, "taxon_concepts",
                    tcs.stream().map(tc -> tc.toString()).collect(Collectors.toSet()));
        }

        // Okay, here's where we reconcile!
        for (Name n : cluster.getNames()) {
            // TODO: there's probably an optimization here, in which we should
            // loop on the smaller set (either loop on 'datasets' and compare
            // to cluster, or loop on cluster.foundIn and compare to 'datasets').
            for (Dataset ds : datasets) {
                Map<Name, Set<DatasetRow>> rowsByName = ds.getRowsByName();

                // Are we included in this name cluster? If not, skip!
                if (!cluster.getFoundIn().contains(ds))
                    continue;

                // Check to see if we have any rows for this name; if not, skip.
                if (!rowsByName.containsKey(n))
                    continue;

                Set<DatasetRow> matched = rowsByName.get(n);
                LOGGER.log(Level.FINER, "Adding {0} rows under name ''{1}''",
                        new Object[] { matched.size(), n.getFullName() });

                Map<Set<DatasetColumn>, List<DatasetRow>> rowsByCols = matched.stream()
                        .collect(Collectors.groupingBy((DatasetRow row) -> row.getColumns()));

                for (Set<DatasetColumn> cols : rowsByCols.keySet()) {
                    for (DatasetColumn col : cols) {
                        String colName = col.getName();

                        if (existingColNames.contains(colName))
                            colName = "datasets." + colName;

                        if (!precalc.contains(cluster, colName))
                            precalc.put(cluster, colName, new HashSet());

                        for (DatasetRow row : rowsByCols.get(cols)) {
                            if (!row.hasColumn(col))
                                continue;

                            precalc.get(cluster, colName).add(row.get(col));
                        }

                        LOGGER.log(Level.FINER, "Added {0} rows under name ''{1}''",
                                new Object[] { rowsByCols.get(cols).size(), n.getFullName() });
                    }
                }
            }
        }
    }

    dataTableView.getColumns().clear();
    for (String colName : existingColNames) {
        dataTableView.getColumns().add(createColumnFromPrecalc(colName, precalc));
    }

    // Get distinct column names.
    Stream<String> colNames = precalc.cellSet().stream().map(set -> set.getColumnKey());

    // Eliminate columns that are in the existingColNames.
    colNames = colNames.filter(colName -> !existingColNames.contains(colName));

    // And add tablecolumns for the rest.
    List<TableColumn<NameCluster, String>> cols = colNames.distinct().sorted()
            .map(colName -> createColumnFromPrecalc(colName, precalc)).collect(Collectors.toList());
    dataTableView.getColumns().addAll(cols);
    dataTableView.refresh();

    // Fill in status text field.
    statusTextField
            .setText(dataTableView.getItems().size() + " rows across " + cols.size() + " reconciled columns");
}

From source file:org.jevis.jeconfig.plugin.classes.ClassTree.java

public ObservableList<TreeItem<JEVisClass>> getChildrenList(TreeItem<JEVisClass> item) {
    if (item == null || item.getValue() == null) {
        return FXCollections.emptyObservableList();
    }//  w w  w.  j  a  v  a2s  .  c  o  m

    if (_itemChildren.containsKey(item)) {
        return _itemChildren.get(item);
    }

    ObservableList<TreeItem<JEVisClass>> list = FXCollections.observableArrayList();
    try {
        for (JEVisClass child : item.getValue().getHeirs()) {
            TreeItem<JEVisClass> newItem = buildItem(child);
            list.add(newItem);
        }
    } catch (JEVisException ex) {
        Logger.getLogger(ClassTree.class.getName()).log(Level.SEVERE, null, ex);
    }
    //        sortList(list);
    _itemChildren.put(item, list);

    return list;

}