Examples with DynamicNodeTemplate org.knime.workbench.repository.model.DynamicNodeTemplate used on opensource projects

Example 1 with DynamicNodeTemplate

use of org.knime.workbench.repository.model.DynamicNodeTemplate in project knime-core by knime.

the class RepositoryManager method readNodeSets.

/**
 * @param isInExpertMode
 */
private void readNodeSets(final IProgressMonitor monitor) {
    // 
    // Process the contributed node sets
    // 
    Iterator<IConfigurationElement> it = Stream.of(RepositoryManager.getExtensions(ID_NODE_SET)).flatMap(ext -> Stream.of(ext.getConfigurationElements())).filter(elem -> !"true".equalsIgnoreCase(elem.getAttribute("deprecated"))).iterator();
    while (it.hasNext()) {
        IConfigurationElement elem = it.next();
        try {
            Collection<DynamicNodeTemplate> dynamicNodeTemplates = RepositoryFactory.createNodeSet(m_root, elem);
            for (DynamicNodeTemplate node : dynamicNodeTemplates) {
                if (monitor.isCanceled()) {
                    return;
                }
                for (Listener l : m_loadListeners) {
                    l.newNode(m_root, node);
                }
                m_nodesById.put(node.getID(), node);
                String nodeName = node.getID();
                nodeName = nodeName.substring(nodeName.lastIndexOf('.') + 1);
                // Ask the root to lookup the category-container located
                // at
                // the given path
                IContainerObject parentContainer = m_root.findContainer(node.getCategoryPath());
                // the node to the repository root.
                if (parentContainer == null) {
                    LOGGER.warn("Invalid category-path for node " + "contribution: '" + node.getCategoryPath() + "' - adding to root instead");
                    m_root.addChild(node);
                } else {
                    // everything is fine, add the node to its parent
                    // category
                    parentContainer.addChild(node);
                }
            }
        } catch (Throwable t) {
            String message = "Node " + elem.getAttribute("factory-class") + "' from plugin '" + elem.getNamespaceIdentifier() + "' could not be created.";
            Bundle bundle = Platform.getBundle(elem.getNamespaceIdentifier());
            if ((bundle == null) || (bundle.getState() != Bundle.ACTIVE)) {
                // if the plugin is null, the plugin could not
                // be activated maybe due to a not
                // activateable plugin (plugin class cannot be found)
                message += " The corresponding plugin " + "bundle could not be activated!";
            }
            LOGGER.error(message, t);
        }
    }
}

Example 2 with DynamicNodeTemplate

use of org.knime.workbench.repository.model.DynamicNodeTemplate in project knime-core by knime.

the class RepositoryFactory method createNodeSet.

/**
 * Creates the set of dynamic node templates.
 *
 * @param root the root to add the missing categories in
 * @param element from the extension points
 * @return the created dynamic node templates
 */
public static Collection<DynamicNodeTemplate> createNodeSet(final Root root, final IConfigurationElement element) {
    String iconPath = element.getAttribute("default-category-icon");
    // Try to load the node set factory class...
    NodeSetFactory nodeSet;
    // this ensures that the class is loaded by the correct eclipse
    // classloaders
    GlobalClassCreator.lock.lock();
    try {
        nodeSet = (NodeSetFactory) element.createExecutableExtension("factory-class");
    } catch (Throwable e) {
        throw new IllegalArgumentException("Can't load factory class for node: " + element.getAttribute("factory-class"), e);
    } finally {
        GlobalClassCreator.lock.unlock();
    }
    Collection<DynamicNodeTemplate> dynamicNodeTemplates = new ArrayList<DynamicNodeTemplate>();
    // for all nodes in the node set
    for (String factoryId : nodeSet.getNodeFactoryIds()) {
        @SuppressWarnings("unchecked") Class<NodeFactory<? extends NodeModel>> factoryClass = (Class<NodeFactory<? extends NodeModel>>) nodeSet.getNodeFactory(factoryId);
        // Try to load the node factory class...
        NodeFactory<? extends NodeModel> factory;
        // this ensures that the class is loaded by the correct eclipse
        // classloaders
        GlobalClassCreator.lock.lock();
        try {
            factory = DynamicNodeTemplate.createFactoryInstance(factoryClass, nodeSet, factoryId);
        } catch (Throwable e) {
            throw new IllegalArgumentException("Can't load factory class for node: " + factoryClass.getName() + "-" + factoryId, e);
        } finally {
            GlobalClassCreator.lock.unlock();
        }
        // DynamicNodeFactory implementations can set deprecation independently from extension
        if (factory.isDeprecated()) {
            continue;
        }
        DynamicNodeTemplate node = new DynamicNodeTemplate(factoryClass, factoryId, nodeSet, factory.getNodeName());
        node.setAfterID(nodeSet.getAfterID(factoryId));
        if (!Boolean.getBoolean("java.awt.headless")) {
            Image icon = ImageRepository.getIconImage(factory);
            node.setIcon(icon);
        }
        node.setCategoryPath(nodeSet.getCategoryPath(factoryId));
        dynamicNodeTemplates.add(node);
        String pluginID = element.getDeclaringExtension().getNamespaceIdentifier();
        // 
        // Insert in proper location, create all categories on
        // the path
        // if not already there
        // 
        String path = node.getCategoryPath();
        if (path.startsWith("/")) {
            path = path.substring(1);
        }
        // split the path
        String[] segments = path.split("/");
        // start at root
        IContainerObject container = root;
        String currentPath = "";
        for (int i = 0; i < segments.length; i++) {
            IRepositoryObject obj = container.getChildByID(segments[i], false);
            currentPath += segments[i];
            if (obj == null) {
                Category cat = createCategory(pluginID, segments[i], "", segments[i], "", iconPath, currentPath);
                // append the newly created category to the container
                container.addChild(cat);
                obj = cat;
            }
            currentPath += "/";
            // continue at this level
            container = (IContainerObject) obj;
        }
    }
    return dynamicNodeTemplates;
}