| /******************************************************************************* |
| * Copyright (c) 2014 itemis AG (http://www.itemis.eu) and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| *******************************************************************************/ |
| package org.eclipse.debug.internal.core; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.debug.core.DebugPlugin; |
| import org.eclipse.debug.core.model.IStepFilter; |
| |
| /** |
| * Manage step filter extensions. |
| * |
| * @see IConfigurationElementConstants |
| * @since 3.10 |
| */ |
| public class StepFilter { |
| |
| private IConfigurationElement fConfigurationElement; |
| |
| private String fModelIdentifier; |
| |
| private IStepFilter fDelegate; |
| |
| public StepFilter(IConfigurationElement element) throws CoreException { |
| fConfigurationElement = element; |
| fModelIdentifier = fConfigurationElement.getAttribute(IConfigurationElementConstants.MODEL_IDENTIFIER); |
| if (fModelIdentifier == null) { |
| throw new CoreException(new Status(IStatus.ERROR, DebugPlugin.getUniqueIdentifier(), DebugPlugin.ERROR, DebugCoreMessages.StepFilter_0, null)); |
| } |
| String className = fConfigurationElement.getAttribute(IConfigurationElementConstants.CLASS); |
| if (className == null) { |
| throw new CoreException(new Status(IStatus.ERROR, DebugPlugin.getUniqueIdentifier(), DebugPlugin.ERROR, DebugCoreMessages.StepFilter_1, null)); |
| } |
| } |
| |
| /** |
| * Returns step filters for the given model identifier. |
| * |
| * @param modelIdentifier the model identifier for which step filters are |
| * requested |
| * @return step filters |
| */ |
| public IStepFilter[] getStepFilters(String modelIdentifier) { |
| if (fModelIdentifier.equals(modelIdentifier)) { |
| IStepFilter delegate = getDelegate(); |
| return new IStepFilter[] { delegate }; |
| } |
| return new IStepFilter[0]; |
| } |
| |
| /** |
| * Returns the IStepFilter for this extension. |
| * |
| * @return the {@link IStepFilter} |
| */ |
| protected IStepFilter getDelegate() { |
| if (fDelegate == null) { |
| try { |
| fDelegate = (IStepFilter) fConfigurationElement.createExecutableExtension(IConfigurationElementConstants.CLASS); |
| } catch (CoreException e) { |
| DebugPlugin.log(e); |
| } |
| } |
| return fDelegate; |
| } |
| |
| } |