| /******************************************************************************* |
| * Copyright (c) 2005, 2019 IBM Corporation 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 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.ui.internal.cheatsheets.composite.views; |
| |
| import java.io.IOException; |
| import java.lang.reflect.Constructor; |
| import java.net.URL; |
| |
| import org.eclipse.core.runtime.FileLocator; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Path; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.osgi.util.NLS; |
| import org.eclipse.ui.internal.cheatsheets.CheatSheetPlugin; |
| import org.eclipse.ui.internal.cheatsheets.ICheatSheetResource; |
| import org.eclipse.ui.internal.cheatsheets.Messages; |
| import org.eclipse.ui.internal.cheatsheets.registry.CheatSheetRegistryReader; |
| import org.eclipse.ui.internal.provisional.cheatsheets.TaskEditor; |
| import org.osgi.framework.Bundle; |
| |
| public class TaskEditorManager { |
| |
| private static TaskEditorManager instance; |
| |
| private TaskEditorManager() { |
| } |
| |
| public static TaskEditorManager getInstance() { |
| if (instance == null) { |
| instance = new TaskEditorManager(); |
| } |
| return instance; |
| } |
| |
| public TaskEditor getEditor(String editorKind) { |
| CheatSheetRegistryReader.TaskEditorNode editorInfo = |
| CheatSheetRegistryReader.getInstance().findTaskEditor(editorKind); |
| if (editorInfo != null) { |
| TaskEditor editorInstance = null; |
| Class<?> extClass = null; |
| String className = editorInfo.getClassName(); |
| try { |
| Bundle bundle = Platform.getBundle(editorInfo.getPluginId()); |
| extClass = bundle.loadClass(className); |
| } catch (Exception e) { |
| String message = NLS.bind(Messages.ERROR_LOADING_CLASS, (new Object[] {className})); |
| Status status = new Status(IStatus.ERROR, ICheatSheetResource.CHEAT_SHEET_PLUGIN_ID, IStatus.OK, message, e); |
| CheatSheetPlugin.getPlugin().getLog().log(status); |
| } |
| try { |
| if (extClass != null) { |
| Constructor<?> c = extClass.getConstructor(); |
| editorInstance = (TaskEditor) c.newInstance(); |
| } |
| } catch (Exception e) { |
| String message = NLS.bind(Messages.ERROR_CREATING_CLASS, (new Object[] {className})); |
| IStatus status = new Status(IStatus.ERROR, ICheatSheetResource.CHEAT_SHEET_PLUGIN_ID, IStatus.OK, message, e); |
| CheatSheetPlugin.getPlugin().getLog().log(status); |
| } |
| |
| return editorInstance; |
| } |
| |
| return null; |
| } |
| |
| public ImageDescriptor getImageDescriptor(String editorKind) { |
| CheatSheetRegistryReader.TaskEditorNode editorInfo = |
| CheatSheetRegistryReader.getInstance().findTaskEditor(editorKind); |
| if (editorInfo != null) { |
| Bundle bundle = Platform.getBundle(editorInfo.getPluginId()); |
| URL url = FileLocator.find(bundle, new Path(editorInfo.getIconPath()), null); |
| if (url != null) { |
| try { |
| url = FileLocator.resolve(url); |
| return ImageDescriptor.createFromURL(url); |
| } catch (IOException e) { |
| return null; |
| } |
| } |
| } |
| return null; |
| } |
| |
| } |