| /******************************************************************************* |
| * Copyright (c) 2012, 2014 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| * Lars Vogel <Lars.Vogel@gmail.com> - Bug XXXXXX |
| *******************************************************************************/ |
| package org.eclipse.ui.internal.ide; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.core.runtime.IExtensionRegistry; |
| import org.eclipse.core.runtime.ISafeRunnable; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.core.runtime.SafeRunner; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.jface.util.SafeRunnable; |
| import org.eclipse.ui.ide.IEditorAssociationOverride; |
| |
| import com.ibm.icu.text.MessageFormat; |
| |
| |
| /** |
| * Describes a contribution to the 'org.eclipse.ui.ide.editorAssociationOverride' extension point. |
| * |
| * @since 3.8 |
| * @noinstantiate This class is not intended to be instantiated by clients. |
| */ |
| public final class EditorAssociationOverrideDescriptor { |
| |
| private static final String EDITOR_ASSOCIATION_OVERRIDE_EXTENSION_POINT= "org.eclipse.ui.ide.editorAssociationOverride"; //$NON-NLS-1$ |
| |
| private static final String EDITOR_ASSOCIATION_OVERRIDE_ELEMENT= "editorAssociationOverride"; //$NON-NLS-1$ |
| private static final String ID_ATTRIBUTE= "id"; //$NON-NLS-1$ |
| private static final String NAME_ATTRIBUTE= "name"; //$NON-NLS-1$ |
| private static final String DESCRIPTION_ATTRIBUTE= "description"; //$NON-NLS-1$ |
| private static final String CLASS_ATTRIBUTE= "class"; //$NON-NLS-1$ |
| |
| private IConfigurationElement fElement; |
| |
| |
| /** |
| * Returns descriptors for all editor association override extensions. |
| * |
| * @return an array with the contributed editor association overrides |
| */ |
| public static EditorAssociationOverrideDescriptor[] getContributedEditorAssociationOverrides() { |
| IExtensionRegistry registry= Platform.getExtensionRegistry(); |
| IConfigurationElement[] elements= registry.getConfigurationElementsFor(EDITOR_ASSOCIATION_OVERRIDE_EXTENSION_POINT); |
| EditorAssociationOverrideDescriptor[] editorAssociationOverrideDescs= createDescriptors(elements); |
| return editorAssociationOverrideDescs; |
| } |
| |
| /** |
| * Creates a new descriptor from the given configuration element. |
| * |
| * @param element the configuration element |
| */ |
| private EditorAssociationOverrideDescriptor(IConfigurationElement element) { |
| Assert.isNotNull(element); |
| fElement= element; |
| } |
| |
| /** |
| * Creates a new {@link IEditorAssociationOverride}. |
| * |
| * @return the editor association override or <code>null</code> if the plug-in isn't loaded yet |
| * @throws CoreException if a failure occurred during creation |
| */ |
| public IEditorAssociationOverride createOverride() throws CoreException { |
| final Throwable[] exception= new Throwable[1]; |
| final IEditorAssociationOverride[] result= new IEditorAssociationOverride[1]; |
| String message= MessageFormat.format(IDEWorkbenchMessages.editorAssociationOverride_error_couldNotCreate_message, getId(), fElement.getContributor().getName()); |
| ISafeRunnable code= new SafeRunnable(message) { |
| /* |
| * @see org.eclipse.core.runtime.ISafeRunnable#run() |
| */ |
| @Override |
| public void run() throws Exception { |
| // String pluginId = fElement.getContributor().getName(); |
| result[0]= (IEditorAssociationOverride)fElement.createExecutableExtension(CLASS_ATTRIBUTE); |
| } |
| /* |
| * @see org.eclipse.jface.util.SafeRunnable#handleException(java.lang.Throwable) |
| */ |
| @Override |
| public void handleException(Throwable ex) { |
| super.handleException(ex); |
| exception[0]= ex; |
| } |
| |
| }; |
| |
| SafeRunner.run(code); |
| |
| if (exception[0] == null) |
| return result[0]; |
| throw new CoreException(new Status(IStatus.ERROR, IDEWorkbenchPlugin.IDE_WORKBENCH, IStatus.OK, message, exception[0])); |
| |
| } |
| |
| //---- XML Attribute accessors --------------------------------------------- |
| |
| /** |
| * Returns the editor association override's id. |
| * |
| * @return the editor association override's id |
| */ |
| public String getId() { |
| return fElement.getAttribute(ID_ATTRIBUTE); |
| } |
| |
| /** |
| * Returns the editor association override's name. |
| * |
| * @return the editor association override's name |
| */ |
| public String getName() { |
| return fElement.getAttribute(NAME_ATTRIBUTE); |
| } |
| |
| /** |
| * Returns the editor association override's description. |
| * |
| * @return the editor association override's description or <code>null</code> if not provided |
| */ |
| public String getDescription() { |
| return fElement.getAttribute(DESCRIPTION_ATTRIBUTE); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj == null || !obj.getClass().equals(this.getClass()) || getId() == null) |
| return false; |
| return getId().equals(((EditorAssociationOverrideDescriptor)obj).getId()); |
| } |
| |
| @Override |
| public int hashCode() { |
| return getId().hashCode(); |
| } |
| |
| private static EditorAssociationOverrideDescriptor[] createDescriptors(IConfigurationElement[] elements) { |
| List result= new ArrayList(elements.length); |
| for (int i= 0; i < elements.length; i++) { |
| IConfigurationElement element= elements[i]; |
| if (EDITOR_ASSOCIATION_OVERRIDE_ELEMENT.equals(element.getName())) { |
| EditorAssociationOverrideDescriptor desc= new EditorAssociationOverrideDescriptor(element); |
| result.add(desc); |
| } else { |
| String message= MessageFormat.format(IDEWorkbenchMessages.editorAssociationOverride_error_invalidElementName_message, |
| element.getContributor().getName(), element.getName()); |
| IDEWorkbenchPlugin.getDefault().getLog().log(new Status(IStatus.ERROR, IDEWorkbenchPlugin.IDE_WORKBENCH, IStatus.OK, message, null)); |
| } |
| } |
| return (EditorAssociationOverrideDescriptor[])result.toArray(new EditorAssociationOverrideDescriptor[result.size()]); |
| } |
| |
| } |