Examples with Task org.apache.pivot.util.concurrent.Task used on opensource projects

Example 11 with Task

use of org.apache.pivot.util.concurrent.Task in project pivot by apache.

the class LargeData method loadData.

private void loadData() {
    int index = fileListButton.getSelectedIndex();
    int capacity = (int) Math.pow(10, index + 1);
    tableView.setTableData(new ArrayList<>(capacity));
    pageSize = Math.max(capacity / 1000, 100);
    String fileName = (String) fileListButton.getSelectedItem();
    URL fileURL = null;
    try {
        fileURL = new URL(origin, basePath + "/" + fileName);
    } catch (MalformedURLException exception) {
        System.err.println(exception.getMessage());
    }
    if (fileURL != null) {
        statusLabel.setText("Loading " + fileURL);
        final long t0 = System.currentTimeMillis();
        System.out.println("Loading \"" + fileURL + "\" ...");
        loadDataTask = new LoadDataTask(fileURL);
        loadDataTask.execute(new TaskAdapter<>(new TaskListener<Void>() {

            @Override
            public void taskExecuted(Task<Void> task) {
                long t1 = System.currentTimeMillis();
                String msg = "Read " + tableView.getTableData().getLength() + " rows in " + (t1 - t0) + "ms";
                loadDataButton.setEnabled(true);
                cancelButton.setEnabled(false);
                loadDataTask = null;
                ApplicationContext.queueCallback(() -> {
                    System.out.println(msg);
                    statusLabel.setText(msg);
                    statusLabel.repaint(true);
                });
            }

            @Override
            public void executeFailed(Task<Void> task) {
                String taskFault = task.getFault().toString();
                loadDataButton.setEnabled(true);
                cancelButton.setEnabled(false);
                loadDataTask = null;
                ApplicationContext.queueCallback(() -> {
                    System.out.println(taskFault);
                    statusLabel.setText(taskFault);
                    statusLabel.repaint(true);
                });
            }
        }));
    }
}

Example 12 with Task

use of org.apache.pivot.util.concurrent.Task in project pivot by apache.

the class RSSFeedDemo method initialize.

@Override
public void initialize(Map<String, Object> namespace, URL location, Resources resources) {
    feedListView = (ListView) namespace.get("feedListView");
    cardPane = (CardPane) namespace.get("cardPane");
    statusLabel = (Label) namespace.get("statusLabel");
    feedListView.getComponentMouseButtonListeners().add(new ComponentMouseButtonListener() {

        private int index = -1;

        @Override
        public boolean mouseClick(Component component, Mouse.Button button, int x, int y, int count) {
            if (count == 1) {
                index = feedListView.getItemAt(y);
            } else if (count == 2 && feedListView.getItemAt(y) == index) {
                Element itemElement = (Element) feedListView.getListData().get(index);
                String link = XML.getText(itemElement, "link");
                Desktop desktop = Desktop.getDesktop();
                try {
                    desktop.browse(new URL(link).toURI());
                } catch (MalformedURLException exception) {
                    throw new RuntimeException(exception);
                } catch (URISyntaxException exception) {
                    throw new RuntimeException(exception);
                } catch (IOException exception) {
                    System.out.println("Unable to open " + link + " in default browser.");
                }
            }
            return false;
        }
    });
    GetQuery getQuery = new GetQuery("feeds.dzone.com", "/javalobby/frontpage");
    getQuery.setSerializer(new XMLSerializer());
    getQuery.getParameters().put("format", "xml");
    getQuery.execute(new TaskAdapter<>(new TaskListener<Object>() {

        @Override
        public void taskExecuted(Task<Object> task) {
            Element root = (Element) task.getResult();
            feedListView.setListData(XML.getElements(root, "channel", "item"));
            cardPane.setSelectedIndex(1);
        }

        @Override
        public void executeFailed(Task<Object> task) {
            statusLabel.setText(task.getFault().toString());
        }
    }));
}

Example 13 with Task

use of org.apache.pivot.util.concurrent.Task in project pivot by apache.

the class ImageView method setImage.

/**
 * Sets the image view's current image by URL. <p> If the icon already
 * exists in the application context resource cache, the cached value will
 * be used. Otherwise, the icon will be loaded synchronously and added to
 * the cache.
 *
 * @param imageURL The location of the image to set.
 */
public final void setImage(final URL imageURL) {
    Utils.checkNull(imageURL, "imageURL");
    Image imageLocal = (Image) ApplicationContext.getResourceCache().get(imageURL);
    if (imageLocal == null) {
        // Convert to URI because using a URL as a key causes performance problems
        final java.net.URI imageURI;
        try {
            imageURI = imageURL.toURI();
        } catch (URISyntaxException exception) {
            throw new RuntimeException(exception);
        }
        if (asynchronous) {
            if (loadMap.containsKey(imageURI)) {
                // Add this to the list of image views that are interested in
                // the image at this URL
                loadMap.get(imageURI).add(this);
            } else {
                Image.load(imageURL, new TaskAdapter<>(new TaskListener<Image>() {

                    @Override
                    public void taskExecuted(Task<Image> task) {
                        Image imageLoadedLocal = task.getResult();
                        // Update the contents of all image views that requested this image
                        for (ImageView imageView : loadMap.get(imageURI)) {
                            imageView.setImage(imageLoadedLocal);
                        }
                        loadMap.remove(imageURI);
                        // Add the image to the cache
                        ApplicationContext.getResourceCache().put(imageURL, imageLoadedLocal);
                    }

                    @Override
                    public void executeFailed(Task<Image> task) {
                    // No-op
                    }
                }));
                loadMap.put(imageURI, new ArrayList<>(this));
            }
        } else {
            imageLocal = Image.loadFromCache(imageURL);
        }
    }
    setImage(imageLocal);
}

Example 14 with Task

use of org.apache.pivot.util.concurrent.Task in project pivot by apache.

the class TerraVFSBrowserSkin method refreshFileList.

private void refreshFileList() {
    // Cancel any outstanding task
    if (refreshFileListTask != null) {
        refreshFileListTask.abort();
        if (indicator != null) {
            indicator.setActive(false);
            fileStackPane.remove(fileStackPane.getLength() - 1, 1);
        }
    }
    if (indicator == null) {
        indicator = new ActivityIndicator();
        activityGrid = new GridPane(5);
        GridPane.Row row1 = new GridPane.Row(activityGrid);
        GridPane.Row row2 = new GridPane.Row(activityGrid);
        GridPane.Row row3 = new GridPane.Row(activityGrid);
        for (int i = 0; i < 5; i++) {
            row1.add(new GridPane.Filler());
            if (i == 2) {
                row2.add(indicator);
            } else {
                row2.add(new GridPane.Filler());
            }
            row3.add(new GridPane.Filler());
        }
    }
    fileStackPane.add(activityGrid);
    indicator.setActive(true);
    fileTableView.setTableData(new ArrayList<FileObject>());
    String text = searchTextInput.getText().trim();
    Filter<FileObject> disabledFileFilter = hideDisabledFiles ? ((VFSBrowser) getComponent()).getDisabledFileFilter() : null;
    Filter<FileObject> includeFileFilter = text.length() != 0 ? new IncludeFileFilter(text) : null;
    TableView.SortDictionary sort = fileTableView.getSort();
    final FileComparator fileComparator;
    if (sort.isEmpty()) {
        fileComparator = null;
    } else {
        Dictionary.Pair<String, SortDirection> pair = fileTableView.getSort().get(0);
        fileComparator = getFileComparator(pair.key, pair.value);
    }
    refreshFileListTask = new RefreshFileListTask(includeFileFilter, disabledFileFilter, fileComparator);
    refreshFileListTask.execute(new TaskAdapter<>(new TaskListener<ArrayList<FileObject>>() {

        @Override
        public void taskExecuted(Task<ArrayList<FileObject>> task) {
            if (task == refreshFileListTask) {
                indicator.setActive(false);
                fileStackPane.remove(fileStackPane.getLength() - 1, 1);
                ArrayList<FileObject> fileList = task.getResult();
                fileTableView.setTableData(fileList);
                updateSelectedFiles((VFSBrowser) getComponent());
                refreshFileListTask = null;
            }
        }

        @Override
        public void executeFailed(Task<ArrayList<FileObject>> task) {
            if (task == refreshFileListTask) {
                indicator.setActive(false);
                fileStackPane.remove(fileStackPane.getLength() - 1, 1);
                refreshFileListTask = null;
            }
        }
    }));
}