Examples with IExtensionRegistry org.eclipse.core.runtime.IExtensionRegistry used on opensource projects

Example 41 with IExtensionRegistry

use of org.eclipse.core.runtime.IExtensionRegistry in project knime-core by knime.

the class PortTypeRegistry method scanExtensionPointForObjectSerializer.

private <T extends PortObject> Optional<PortObjectSerializer<T>> scanExtensionPointForObjectSerializer(final String objectClassName) {
    // not found => scan extension point
    IExtensionRegistry registry = Platform.getExtensionRegistry();
    IExtensionPoint point = registry.getExtensionPoint(EXT_POINT_ID);
    Optional<IConfigurationElement> o = Stream.of(point.getExtensions()).flatMap(ext -> Stream.of(ext.getConfigurationElements())).filter(cfe -> cfe.getAttribute("objectClass").equals(objectClassName)).findFirst();
    if (o.isPresent()) {
        IConfigurationElement configElement = o.get();
        return createObjectSerializer(configElement);
    } else {
        return Optional.empty();
    }
}

Example 42 with IExtensionRegistry

use of org.eclipse.core.runtime.IExtensionRegistry in project knime-core by knime.

the class DatabaseUtilityRegistry method loadUtilities.

/**
 */
private void loadUtilities() {
    final IExtensionRegistry registry = Platform.getExtensionRegistry();
    final IExtensionPoint point = registry.getExtensionPoint(EXT_POINT_ID);
    assert point != null : "Invalid extension point id: " + EXT_POINT_ID;
    for (IExtension ext : point.getExtensions()) {
        final IConfigurationElement[] elements = ext.getConfigurationElements();
        for (IConfigurationElement utilityElement : elements) {
            try {
                final DatabaseUtility utility = (DatabaseUtility) utilityElement.createExecutableExtension("class");
                addUtility(utility);
            } catch (CoreException ex) {
                NodeLogger.getLogger(DatabaseUtilityRegistry.class).error("Could not create registered database utility " + utilityElement.getAttribute("class") + " from plug-in " + utilityElement.getNamespaceIdentifier() + ": " + ex.getMessage(), ex);
            }
        }
    }
}

Example 43 with IExtensionRegistry

use of org.eclipse.core.runtime.IExtensionRegistry in project eclipse.platform.swt by eclipse.

the class LauncherPlugin method getLaunchItemTree.

/**
 * Constructs a list of available programs from registered extensions.
 *
 * @return an ItemTreeNode representing the root of a tree of items (the root is not to be displayed)
 */
public static ItemTreeNode getLaunchItemTree() {
    ItemTreeNode categoryTree = new ItemTreeNode(new ItemDescriptor("<<Root>>", "<<Root>>", null, null, null, null, null, null));
    // get the platform's public plugin registry
    IExtensionRegistry extensionRegistry = Platform.getExtensionRegistry();
    // retrieve all configuration elements registered at our launchItems extension-point
    IConfigurationElement[] configurationElements = extensionRegistry.getConfigurationElementsFor(LAUNCH_ITEMS_POINT_ID);
    if (configurationElements == null || configurationElements.length == 0) {
        logError(getResourceString("error.CouldNotFindRegisteredExtensions"), null);
        return categoryTree;
    }
    /* Collect all launch categories -- coalesce those with same ID */
    HashMap<String, ItemTreeNode> idMap = new HashMap<>();
    for (IConfigurationElement ce : configurationElements) {
        final String ceName = ce.getName();
        final String attribId = getItemAttribute(ce, LAUNCH_ITEMS_XML_ATTRIB_ID, null);
        if (idMap.containsKey(attribId))
            continue;
        if (ceName.equalsIgnoreCase(LAUNCH_ITEMS_XML_CATEGORY)) {
            final String attribName = getItemName(ce);
            ItemDescriptor theDescriptor = new ItemDescriptor(attribId, attribName, getItemDescription(ce), null, null, null, null, ce);
            idMap.put(attribId, new ItemTreeNode(theDescriptor));
        }
    }
    /* Generate launch category hierarchy */
    // used to prevent duplicates from being entered into the tree
    Set<String> tempIdSet = new HashSet<>();
    for (IConfigurationElement ce : configurationElements) {
        final String ceName = ce.getName();
        final String attribId = getItemAttribute(ce, LAUNCH_ITEMS_XML_ATTRIB_ID, null);
        if (tempIdSet.contains(attribId))
            continue;
        if (ceName.equalsIgnoreCase(LAUNCH_ITEMS_XML_CATEGORY)) {
            final ItemTreeNode theNode = idMap.get(attribId);
            addItemByCategory(ce, categoryTree, theNode, idMap);
            tempIdSet.add(attribId);
        }
    }
    /* Generate program tree */
    for (IConfigurationElement ce : configurationElements) {
        final String ceName = ce.getName();
        final String attribId = getItemAttribute(ce, LAUNCH_ITEMS_XML_ATTRIB_ID, null);
        if (idMap.containsKey(attribId))
            continue;
        if (ceName.equalsIgnoreCase(LAUNCH_ITEMS_XML_CATEGORY)) {
        // ignore
        } else if (ceName.equalsIgnoreCase(LAUNCH_ITEMS_XML_ITEM)) {
            final String enabled = getItemAttribute(ce, LAUNCH_ITEMS_XML_ATTRIB_ENABLED, LAUNCH_ITEMS_XML_VALUE_TRUE);
            if (enabled.equalsIgnoreCase(LAUNCH_ITEMS_XML_VALUE_FALSE))
                continue;
            ItemDescriptor theDescriptor = createItemDescriptor(ce, attribId);
            if (theDescriptor != null) {
                final ItemTreeNode theNode = new ItemTreeNode(theDescriptor);
                addItemByCategory(ce, categoryTree, theNode, idMap);
                idMap.put(attribId, theNode);
            }
        }
    }
    return categoryTree;
}

Example 44 with IExtensionRegistry

use of org.eclipse.core.runtime.IExtensionRegistry in project linuxtools by eclipse.

the class LibHover method getLibHoverDocs.

public static synchronized void getLibHoverDocs() {
    if (docsFetched) {
        return;
    }
    libraries.clear();
    helpBooks.clear();
    helpBooksMap.clear();
    // Check if caching of library info is enabled and if so, get any
    // cached library hover info.
    IPreferenceStore ps = LibhoverPlugin.getDefault().getPreferenceStore();
    if (ps.getBoolean(PreferenceConstants.CACHE_EXT_LIBHOVER)) {
        // Look for cached libhover files in the plugin state location
        IPath stateLocation = LibhoverPlugin.getDefault().getStateLocation();
        IFileSystem fs = EFS.getLocalFileSystem();
        // $NON-NLS-1$
        IPath CLibraryLocation = stateLocation.append("C");
        // $NON-NLS-1$
        IPath CPPLibraryLocation = stateLocation.append("CPP");
        IFileStore cDir = fs.getStore(CLibraryLocation);
        if (cDir.fetchInfo().exists()) {
            // $NON-NLS-1$
            getCachedLibraries(cDir, "C");
        }
        IFileStore cppDir = fs.getStore(CPPLibraryLocation);
        if (cppDir.fetchInfo().exists()) {
            // $NON-NLS-1$
            getCachedLibraries(cppDir, "C++");
        }
    }
    IExtensionRegistry x = RegistryFactory.getRegistry();
    IConfigurationElement[] ces = x.getConfigurationElementsFor(LIBHOVER_DOC_EXTENSION);
    for (int i = 0; i < ces.length; ++i) {
        IConfigurationElement ce = ces[i];
        if (ce.getName().equals("library")) {
            // $NON-NLS-1$
            // see comment in initialize()
            // Use the FileLocator class to open the magic hover doc file
            // in the plugin's jar.
            // Either open the html file or file system file depending
            // on what has been specified.
            // $NON-NLS-1$
            String location = ce.getAttribute("location");
            // $NON-NLS-1$
            String name = ce.getAttribute("name");
            // $NON-NLS-1$
            String helpdocs = ce.getAttribute("docs");
            // $NON-NLS-1$
            String type = ce.getAttribute("type");
            String nameSpace = ce.getContributor().getName();
            // If library not already cached, create it
            ICHelpBook book = helpBooksMap.get(name);
            if (book == null) {
                HelpBook h = new HelpBook(name, type);
                helpBooks.add(h);
                helpBooksMap.put(name, h);
                LibHoverLibrary l = new LibHoverLibrary(name, location, helpdocs, nameSpace, // $NON-NLS-1$
                "C++".equals(type));
                libraries.put(h, l);
            } else {
                LibHoverLibrary l = libraries.get(book);
                if (l != null) {
                    l.setDocs(helpdocs);
                }
            }
            docsFetched = true;
        }
    }
}

Example 45 with IExtensionRegistry

use of org.eclipse.core.runtime.IExtensionRegistry in project knime-core by knime.

the class NodeFactoryClassMapper method collectNodeFactoryMappers.

private static List<NodeFactoryClassMapper> collectNodeFactoryMappers() {
    IExtensionRegistry registry = Platform.getExtensionRegistry();
    IExtensionPoint point = registry.getExtensionPoint(EXT_POINT_ID);
    if (point == null) {
        LOGGER.error("Invalid extension point: " + EXT_POINT_ID);
        return Collections.emptyList();
    }
    List<NodeFactoryClassMapper> resultList = new ArrayList<NodeFactoryClassMapper>();
    for (IConfigurationElement elem : point.getConfigurationElements()) {
        String classMapperCLName = elem.getAttribute(EXT_POINT_ATTR_CLASS_NAME);
        String decl = elem.getDeclaringExtension().getUniqueIdentifier();
        if (classMapperCLName == null || classMapperCLName.isEmpty()) {
            LOGGER.error("The extension '" + decl + "' doesn't provide the required attribute '" + EXT_POINT_ATTR_CLASS_NAME + "' - ignoring it");
            continue;
        }
        NodeFactoryClassMapper instance = null;
        try {
            instance = (NodeFactoryClassMapper) elem.createExecutableExtension(EXT_POINT_ATTR_CLASS_NAME);
        } catch (Throwable t) {
            LOGGER.error("Problems during initialization of node factory class mapper (with id '" + classMapperCLName + "'.)", t);
            if (decl != null) {
                LOGGER.error("Extension " + decl + " ignored.");
            }
        }
        resultList.add(instance);
    }
    return Collections.unmodifiableList(resultList);
}