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

Example 71 with IExtensionPoint

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

the class RpcTransportRegistry method collectRpcMessageTransportFactory.

/**
 * @return the factory provided by org.knime.core.ui (delegating message transport to NodeContainerUI#doRpc)
 */
private static RpcTransportFactory collectRpcMessageTransportFactory() {
    IExtensionRegistry registry = Platform.getExtensionRegistry();
    IExtensionPoint point = registry.getExtensionPoint(EXT_POINT_ID);
    // find all extensions implementing the RpcTransportFactory extension point
    List<RpcTransportFactory> factoryList = Stream.of(point.getExtensions()).flatMap(ext -> Stream.of(ext.getConfigurationElements())).map(RpcTransportRegistry::readFactory).filter(Objects::nonNull).collect(Collectors.toList());
    if (factoryList.isEmpty() || factoryList.size() > 1) {
        throw new IllegalStateException(String.format("%s factories registered via RpcTransportFactory extension point, should be exactly 1.\n" + "Factory list: %s", factoryList.size(), factoryList));
    }
    return factoryList.get(0);
}

Example 72 with IExtensionPoint

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

the class TestrunJanitor method getJanitors.

/**
 * Returns a list with all registered testrun janitors. Each call will create new instances.
 *
 * @return a (possibly empty) collection with testrun janitors
 */
public static Collection<TestrunJanitor> getJanitors() {
    List<TestrunJanitor> janitors = new ArrayList<>();
    IExtensionRegistry registry = Platform.getExtensionRegistry();
    IExtensionPoint point = registry.getExtensionPoint("org.knime.testing.TestrunJanitor");
    for (IExtension ext : point.getExtensions()) {
        IConfigurationElement[] elements = ext.getConfigurationElements();
        for (IConfigurationElement janitorElement : elements) {
            try {
                janitors.add((TestrunJanitor) janitorElement.createExecutableExtension("class"));
            } catch (CoreException ex) {
                NodeLogger.getLogger(TestrunJanitor.class).error("Could not create testrun janitor " + janitorElement.getAttribute("class") + " from plug-in " + janitorElement.getNamespaceIdentifier() + ": " + ex.getMessage(), ex);
            }
        }
    }
    return janitors;
}

Example 73 with IExtensionPoint

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

the class NodeExecutionJobManagerPool method collectJobManagerFactories.

private static void collectJobManagerFactories() {
    managerFactories = new LinkedHashMap<String, NodeExecutionJobManagerFactory>();
    IExtensionRegistry registry = Platform.getExtensionRegistry();
    IExtensionPoint point = registry.getExtensionPoint(EXT_POINT_ID);
    if (point == null) {
        // let's throw in the default manager - otherwise things fail badly
        managerFactories.put(getDefaultJobManagerFactory().getID(), getDefaultJobManagerFactory());
        LOGGER.error("Invalid extension point: " + EXT_POINT_ID);
        throw new IllegalStateException("ACTIVATION ERROR: " + " --> Invalid extension point: " + EXT_POINT_ID);
    }
    for (IConfigurationElement elem : point.getConfigurationElements()) {
        String jobMgr = elem.getAttribute(EXT_POINT_ATTR_JOBMGR);
        String decl = elem.getDeclaringExtension().getUniqueIdentifier();
        if (jobMgr == null || jobMgr.isEmpty()) {
            LOGGER.error("The extension '" + decl + "' doesn't provide the required attribute '" + EXT_POINT_ATTR_JOBMGR + "'");
            LOGGER.error("Extension " + decl + " ignored.");
            continue;
        }
        // try instantiating the job manager.
        NodeExecutionJobManagerFactory instance = null;
        try {
            // TODO: THE THREADED MANAGER NEEDS TO BE RE-WRITTEN!
            if (jobMgr.equals(getDefaultJobManagerFactory().getID())) {
                instance = getDefaultJobManagerFactory();
            } else {
                instance = (NodeExecutionJobManagerFactory) elem.createExecutableExtension(EXT_POINT_ATTR_JOBMGR);
            }
        } catch (UnsatisfiedLinkError ule) {
            // in case an implementation tries to load an external lib
            // when the factory class gets loaded
            LOGGER.error("Unable to load a library required for '" + jobMgr + "'");
            LOGGER.error("Either specify it in the -Djava.library.path " + "option at the program's command line, or");
            LOGGER.error("include it in the LD_LIBRARY_PATH variable.");
            LOGGER.error("Extension " + jobMgr + " ('" + decl + "') ignored.", ule);
        } catch (CoreException ex) {
            Throwable cause = ex.getStatus().getException();
            if (cause != null) {
                LOGGER.error("Problems during initialization of job manager (with id '" + jobMgr + "'): " + cause.getMessage(), ex);
                if (decl != null) {
                    LOGGER.error("Extension " + decl + " ignored.");
                }
            } else {
                LOGGER.error("Problems during initialization of job manager (with id '" + jobMgr + "')", ex);
                if (decl != null) {
                    LOGGER.error("Extension " + decl + " ignored.");
                }
            }
        } catch (Throwable t) {
            LOGGER.error("Problems during initialization of job manager (with id '" + jobMgr + "')", t);
            if (decl != null) {
                LOGGER.error("Extension " + decl + " ignored.");
            }
        }
        if (instance != null) {
            /*
                 * make sure the ThreadedJobManagerFactory is always the first
                 * in the list
                 */
            if ((instance instanceof ThreadPool) && managerFactories.size() > 0) {
                Map<String, NodeExecutionJobManagerFactory> old = managerFactories;
                managerFactories = new LinkedHashMap<String, NodeExecutionJobManagerFactory>();
                managerFactories.put(instance.getID(), instance);
                for (Map.Entry<String, NodeExecutionJobManagerFactory> e : old.entrySet()) {
                    managerFactories.put(e.getKey(), e.getValue());
                }
            } else {
                managerFactories.put(instance.getID(), instance);
            }
        }
    }
}

Example 74 with IExtensionPoint

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

the class AbstractWizardNodeView method getAllWizardNodeViews.

/**
 * Queries extension point for additional {@link AbstractWizardNodeView} implementations.
 *
 * @return A list with all registered view implementations.
 */
@SuppressWarnings("unchecked")
public static List<WizardNodeViewExtension> getAllWizardNodeViews() {
    List<WizardNodeViewExtension> viewExtensionList = new ArrayList<WizardNodeViewExtension>();
    IExtensionRegistry registry = Platform.getExtensionRegistry();
    IExtensionPoint point = registry.getExtensionPoint(EXT_POINT_ID);
    assert point != null : "Invalid extension point id: " + EXT_POINT_ID;
    for (IExtension ext : point.getExtensions()) {
        IConfigurationElement[] elements = ext.getConfigurationElements();
        for (IConfigurationElement viewElement : elements) {
            String viewClassName = viewElement.getAttribute("viewClass");
            String viewName = viewElement.getAttribute("name");
            String viewDesc = viewElement.getAttribute("description");
            Class<AbstractWizardNodeView<?, ?, ?>> viewClass;
            try {
                viewClass = (Class<AbstractWizardNodeView<?, ?, ?>>) Platform.getBundle(viewElement.getDeclaringExtension().getContributor().getName()).loadClass(viewClassName);
                viewExtensionList.add(new WizardNodeViewExtension(viewClass, viewName, viewDesc));
            } catch (ClassNotFoundException ex) {
                NodeLogger.getLogger(AbstractWizardNodeView.class).error("Could not find implementation for " + viewClassName, ex);
            }
        }
    }
    return viewExtensionList;
}

Example 75 with IExtensionPoint

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

the class DatabaseDriverLoader method loadDriversFromExtensionPoint.

/**
 * Loads all JDBC driver registered via the extension point.
 */
private static void loadDriversFromExtensionPoint() {
    IExtensionRegistry registry = Platform.getExtensionRegistry();
    IExtensionPoint point = registry.getExtensionPoint(EXT_POINT_ID);
    if (point == null) {
        throw new IllegalStateException("Invalid extension point id: " + EXT_POINT_ID);
    }
    for (IExtension ext : point.getExtensions()) {
        IConfigurationElement[] elements = ext.getConfigurationElements();
        for (IConfigurationElement e : elements) {
            String path = e.getAttribute("jarFile");
            String bundleId = e.getDeclaringExtension().getNamespaceIdentifier();
            Bundle bundle = Platform.getBundle(bundleId);
            URL jdbcUrl = FileLocator.find(bundle, new Path(path), null);
            if (jdbcUrl != null) {
                ClassLoader bundleClassLoader = bundle.adapt(BundleWiring.class).getClassLoader();
                try {
                    loadDriver(new File(FileLocator.toFileURL(jdbcUrl).getPath()), bundleClassLoader, false);
                } catch (IOException ex) {
                    LOGGER.error("Could not load JDBC driver '" + path + "': " + ex.getMessage(), ex);
                }
            } else {
                LOGGER.error("Could not find JDBC driver file '" + path + "' from plug-in '" + bundleId + "'");
            }
        }
    }
}