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

Example 36 with IExtensionRegistry

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

the class AggregationMethods method registerExtensionPoints.

/**
 * Registers all extension point implementations.
 */
private void registerExtensionPoints() {
    try {
        final IExtensionRegistry registry = Platform.getExtensionRegistry();
        final IExtensionPoint point = registry.getExtensionPoint(EXT_POINT_ID);
        if (point == null) {
            LOGGER.error("Invalid extension point: " + EXT_POINT_ID);
            throw new IllegalStateException("ACTIVATION ERROR: --> Invalid extension point: " + EXT_POINT_ID);
        }
        for (final IConfigurationElement elem : point.getConfigurationElements()) {
            final String operator = elem.getAttribute(EXT_POINT_ATTR_DF);
            final String decl = elem.getDeclaringExtension().getUniqueIdentifier();
            if (operator == null || operator.isEmpty()) {
                LOGGER.error("The extension '" + decl + "' doesn't provide the required attribute '" + EXT_POINT_ATTR_DF + "'");
                LOGGER.error("Extension " + decl + " ignored.");
                continue;
            }
            boolean isDeprecated = Boolean.parseBoolean(elem.getAttribute("deprecated"));
            try {
                final AggregationOperator aggrOperator = (AggregationOperator) elem.createExecutableExtension(EXT_POINT_ATTR_DF);
                if (isDeprecated) {
                    addDeprecatedOperator(aggrOperator);
                } else {
                    addOperator(aggrOperator);
                }
            } catch (final Throwable t) {
                LOGGER.error("Problems during initialization of aggregation operator (with id '" + operator + "'.)", t);
                if (decl != null) {
                    LOGGER.error("Extension " + decl + " ignored.", t);
                }
            }
        }
    } catch (final Exception e) {
        LOGGER.error("Exception while registering aggregation operator extensions", e);
    }
}

Example 37 with IExtensionRegistry

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

the class WorkflowManager method executeEarlyStartup.

private static void executeEarlyStartup() {
    String extPointId = "org.knime.core.EarlyStartup";
    IExtensionRegistry registry = Platform.getExtensionRegistry();
    IExtensionPoint point = registry.getExtensionPoint(extPointId);
    assert point != null : "Invalid extension point id: " + extPointId;
    Iterator<IConfigurationElement> it = Stream.of(point.getExtensions()).flatMap(ext -> Stream.of(ext.getConfigurationElements())).iterator();
    while (it.hasNext()) {
        IConfigurationElement e = it.next();
        try {
            ((IEarlyStartup) e.createExecutableExtension("class")).run();
        } catch (CoreException ex) {
            LOGGER.error("Could not create early startup object od class '" + e.getAttribute("class") + "' " + "from plug-in '" + e.getContributor().getName() + "': " + ex.getMessage(), ex);
        } catch (Exception ex) {
            LOGGER.error("Early startup in '" + e.getAttribute("class") + " from plug-in '" + e.getContributor().getName() + "' has thrown an uncaught exception: " + ex.getMessage(), ex);
        }
    }
}

Example 38 with IExtensionRegistry

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

the class WorkflowSaveHook method collectWorkflowSaveHooks.

private static List<WorkflowSaveHook> collectWorkflowSaveHooks() {
    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<WorkflowSaveHook> resultList = new ArrayList<WorkflowSaveHook>();
    for (IConfigurationElement elem : point.getConfigurationElements()) {
        String workflowSaveHookClassName = elem.getAttribute(EXT_POINT_ATTR_CLASS_NAME);
        String decl = elem.getDeclaringExtension().getUniqueIdentifier();
        if (StringUtils.isEmpty(workflowSaveHookClassName)) {
            LOGGER.errorWithFormat("The extension '%s' doesn't provide the required attribute '%s' - ignoring it", decl, EXT_POINT_ATTR_CLASS_NAME);
            continue;
        }
        WorkflowSaveHook instance = null;
        try {
            instance = (WorkflowSaveHook) elem.createExecutableExtension(EXT_POINT_ATTR_CLASS_NAME);
        } catch (Throwable t) {
            LOGGER.error("Problems during initialization of workflow save hook (class '" + workflowSaveHookClassName + "'.)", t);
            if (decl != null) {
                LOGGER.error("Extension " + decl + " ignored.");
            }
        }
        resultList.add(instance);
    }
    return Collections.unmodifiableList(resultList);
}

Example 39 with IExtensionRegistry

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

the class PortTypeRegistry method scanExtensionPointForSpecSerializer.

private <T extends PortObjectSpec> Optional<PortObjectSpecSerializer<T>> scanExtensionPointForSpecSerializer(final String specClassName) {
    // 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("specClass").equals(specClassName)).findFirst();
    if (o.isPresent()) {
        IConfigurationElement configElement = o.get();
        return createSpecSerializer(configElement);
    } else {
        return Optional.empty();
    }
}

Example 40 with IExtensionRegistry

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

the class PortTypeRegistry method getPortType.

/**
 * Returns the port type for the given port object class.
 *
 * @param portClass any port object class, must not be <code>null</code>
 * @param isOptional <code>true</code> for an optional port, <code>false</code> for a required port
 * @return a port type, never <code>null</code>
 */
public synchronized PortType getPortType(final Class<? extends PortObject> portClass, final boolean isOptional) {
    Map<Class<? extends PortObject>, PortType> map = isOptional ? m_allOptionalPortTypes : m_allPortTypes;
    PortType pt = map.get(portClass);
    if (pt == null) {
        IExtensionRegistry registry = Platform.getExtensionRegistry();
        IExtensionPoint point = registry.getExtensionPoint(EXT_POINT_ID);
        Optional<IConfigurationElement> configElement = Stream.of(point.getExtensions()).flatMap(ext -> Stream.of(ext.getConfigurationElements())).filter(e -> portClass.getName().equals(e.getAttribute("objectClass"))).findFirst();
        if (configElement.isPresent()) {
            createPortTypes(configElement.get());
            pt = map.get(portClass);
        } else {
            if (!portClass.isInterface()) {
                NodeLogger.getLogger(getClass()).coding("Port object class '" + portClass.getName() + "' is not " + "registered at the extension point org.knime.core.PortType.");
            }
            pt = new PortType(portClass, isOptional, null, PortType.DEFAULT_COLOR, true);
            map.put(portClass, pt);
        }
    }
    return pt;
}