| /******************************************************************************* |
| * Copyright (c) 2008, 2016 xored software, Inc. and others. |
| * |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * xored software, Inc. - initial API and Implementation (Alex Panchenko) |
| *******************************************************************************/ |
| package org.eclipse.dltk.internal.testing; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.dltk.internal.testing.launcher.NullTestRunnerUI; |
| import org.eclipse.dltk.internal.testing.util.NumberUtils; |
| import org.eclipse.dltk.testing.DLTKTestingPlugin; |
| import org.eclipse.dltk.testing.ITestCategoryEngine; |
| import org.eclipse.dltk.testing.ITestRunnerUI; |
| import org.eclipse.dltk.utils.NatureExtensionManager; |
| |
| public class TestCategoryEngineManager extends |
| NatureExtensionManager<TestCategoryEngineManager.Descriptor> { |
| |
| private static final String EXTENSION_POINT = DLTKTestingPlugin.PLUGIN_ID |
| + ".categoryEngine"; //$NON-NLS-1$ |
| |
| @Override |
| protected String getCategoryAttributeName() { |
| return "testingEngineId"; //$NON-NLS-1$ |
| } |
| |
| static class Descriptor { |
| |
| final IConfigurationElement element; |
| final int priority; |
| |
| /** |
| * @param confElement |
| * @param priority |
| */ |
| public Descriptor(IConfigurationElement confElement, int priority) { |
| this.element = confElement; |
| this.priority = priority; |
| } |
| |
| } |
| |
| private TestCategoryEngineManager() { |
| super(EXTENSION_POINT, Descriptor.class); |
| } |
| |
| private static final String PRIORITY_ATTR = "priority"; //$NON-NLS-1$ |
| |
| @Override |
| protected Object createDescriptor(IConfigurationElement confElement) { |
| final String strPriority = confElement.getAttribute(PRIORITY_ATTR); |
| int priority = NumberUtils.toInt(strPriority); |
| return new Descriptor(confElement, priority); |
| } |
| |
| private final Comparator<Object> descriptorComparator = new Comparator<Object>() { |
| |
| @Override |
| public int compare(Object o1, Object o2) { |
| Descriptor descriptor1 = (Descriptor) o1; |
| Descriptor descriptor2 = (Descriptor) o2; |
| return descriptor1.priority - descriptor2.priority; |
| } |
| |
| }; |
| |
| @Override |
| protected void initializeDescriptors(List<Object> descriptors) { |
| Collections.sort(descriptors, descriptorComparator); |
| } |
| |
| @Override |
| protected Object createInstanceByDescriptor(Object descriptor) |
| throws CoreException { |
| return descriptor; |
| } |
| |
| @Override |
| protected Descriptor[] createEmptyResult() { |
| return new Descriptor[0]; |
| } |
| |
| private static TestCategoryEngineManager instance = null; |
| |
| private static synchronized TestCategoryEngineManager getInstance() { |
| if (instance == null) { |
| instance = new TestCategoryEngineManager(); |
| } |
| return instance; |
| } |
| |
| /** |
| * Returns the category engines registered for the specified testing engine |
| * or <code>null</code>. |
| * |
| * @param runnerUI |
| * @return |
| */ |
| public static ITestCategoryEngine[] getCategoryEngines( |
| ITestRunnerUI runnerUI) { |
| if (runnerUI instanceof NullTestRunnerUI) { |
| return null; |
| } |
| final Descriptor[] descriptors = getInstance().getInstances( |
| runnerUI.getTestingEngine().getId()); |
| if (descriptors == null) { |
| return null; |
| } |
| final List<ITestCategoryEngine> result = new ArrayList<ITestCategoryEngine>( |
| descriptors.length); |
| for (int i = 0; i < descriptors.length; ++i) { |
| final Descriptor descriptor = descriptors[i]; |
| ITestCategoryEngine categoryEngine; |
| try { |
| categoryEngine = (ITestCategoryEngine) descriptor.element |
| .createExecutableExtension("class"); //$NON-NLS-1$ |
| if (categoryEngine.initialize(runnerUI)) { |
| result.add(categoryEngine); |
| } |
| } catch (CoreException e) { |
| DLTKTestingPlugin.log("Error creating category engine", e); //$NON-NLS-1$ |
| } catch (ClassCastException e) { |
| DLTKTestingPlugin.log("Error creating category engine", e); //$NON-NLS-1$ |
| } |
| } |
| if (result.isEmpty()) { |
| return null; |
| } else { |
| return result.toArray(new ITestCategoryEngine[result.size()]); |
| } |
| } |
| } |