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

Example 21 with IExtensionRegistry

use of org.eclipse.core.runtime.IExtensionRegistry 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 22 with IExtensionRegistry

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

the class ExtensibleUtilityFactory method readRenderersFromExtensionPoint.

private void readRenderersFromExtensionPoint() {
    if (m_renderers != null) {
        return;
    }
    synchronized (m_logger) {
        if (m_renderers != null) {
            return;
        }
        Map<String, DataValueRendererFactory> renderers = new HashMap<String, DataValueRendererFactory>();
        IExtensionRegistry registry = Platform.getExtensionRegistry();
        IExtensionPoint point = registry.getExtensionPoint(EXT_POINT_ID);
        assert point != null : "Invalid extension point id: " + EXT_POINT_ID;
        String defaultRendererId = null;
        for (IExtension ext : point.getExtensions()) {
            IConfigurationElement[] elements = ext.getConfigurationElements();
            for (IConfigurationElement valueClassElement : elements) {
                String valueClassName = valueClassElement.getAttribute("valueClass");
                if (!m_valueClass.getName().equals(valueClassName)) {
                    continue;
                }
                for (IConfigurationElement rendererClassElement : valueClassElement.getChildren()) {
                    boolean suggestAsDefault = Boolean.parseBoolean(rendererClassElement.getAttribute("suggestAsDefault"));
                    try {
                        DataValueRendererFactory rendererFactory = (DataValueRendererFactory) rendererClassElement.createExecutableExtension("rendererFactoryClass");
                        renderers.put(rendererFactory.getId(), rendererFactory);
                        if (suggestAsDefault || (defaultRendererId == null)) {
                            defaultRendererId = rendererFactory.getId();
                            CORE_DEFAULT_PREFS.put(getPreferenceKey(), defaultRendererId);
                        }
                    } catch (CoreException ex) {
                        m_logger.error("Could not load registered renderer factory " + rendererClassElement.getAttribute("rendererFactoryClass") + " for " + valueClassName + " from plug-in " + valueClassElement.getNamespaceIdentifier() + ": " + ex.getMessage(), ex);
                    }
                }
            }
        }
        m_renderers = renderers;
    }
}

Example 23 with IExtensionRegistry

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

the class Activator method initializeResourceServiceProviderRegistry.

private void initializeResourceServiceProviderRegistry(BundleContext context) {
    IExtensionRegistry eReg = Platform.getExtensionRegistry();
    String symbolicName = context.getBundle().getSymbolicName();
    new ContentResourceServiceProviderRegistryReader(eReg, symbolicName).readRegistry();
    new ExtensionResourceServiceProviderRegistryReader(eReg, symbolicName).readRegistry();
    new ProtocolResourceServiceProviderRegistryReader(eReg, symbolicName).readRegistry();
}

Example 24 with IExtensionRegistry

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

the class MissingCellHandlerFactoryManager method registerExtensionPoints.

/**
 * Registers all extension point implementations.
 * @param extPointId id of the extension point
 * @param extPointAttrDf attribute of the factory class within the handler extension point
 */
protected void registerExtensionPoints(final String extPointId, final String extPointAttrDf) {
    try {
        final IExtensionRegistry registry = Platform.getExtensionRegistry();
        final IExtensionPoint point = registry.getExtensionPoint(extPointId);
        if (point == null) {
            LOGGER.error("Invalid extension point: " + extPointId);
            throw new IllegalStateException("ACTIVATION ERROR: " + " --> Invalid extension point: " + extPointId);
        }
        for (final IConfigurationElement elem : point.getConfigurationElements()) {
            final String operator = elem.getAttribute(extPointAttrDf);
            final String decl = elem.getDeclaringExtension().getUniqueIdentifier();
            if ((operator == null) || operator.isEmpty()) {
                LOGGER.error("The extension '" + decl + "' doesn't provide the required attribute '" + extPointAttrDf + "'");
                LOGGER.error("Extension " + decl + " ignored.");
                continue;
            }
            try {
                final MissingCellHandlerFactory factory = (MissingCellHandlerFactory) elem.createExecutableExtension(extPointAttrDf);
                addMissingCellHandlerFactory(factory);
            } catch (final Exception t) {
                LOGGER.error("Problems during initialization of missing value handler factory (with id '" + operator + "'.)");
                if (decl != null) {
                    LOGGER.error("Extension " + decl + " ignored.", t);
                }
            }
        }
    } catch (final Exception e) {
        LOGGER.error("Exception while registering MissingCellHandler extensions");
    }
}

Example 25 with IExtensionRegistry

use of org.eclipse.core.runtime.IExtensionRegistry 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<?, ?, ?>>) Class.forName(viewClassName);
                viewExtensionList.add(new WizardNodeViewExtension(viewClass, viewName, viewDesc));
            } catch (ClassNotFoundException ex) {
                NodeLogger.getLogger(AbstractWizardNodeView.class).coding("Could not find implementation for " + viewClassName, ex);
            }
        }
    }
    return viewExtensionList;
}