| /******************************************************************************* |
| * Copyright (c) 2000, 2008 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 |
| *******************************************************************************/ |
| |
| package org.eclipse.jdt.internal.ui.search; |
| |
| 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.jdt.internal.corext.util.Messages; |
| |
| import org.eclipse.jdt.ui.search.IQueryParticipant; |
| |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| |
| /** |
| */ |
| public class SearchParticipantDescriptor { |
| private static final String CLASS= "class"; //$NON-NLS-1$ |
| private static final String NATURE= "nature"; //$NON-NLS-1$ |
| private static final String ID= "id"; //$NON-NLS-1$ |
| |
| private IConfigurationElement fConfigurationElement; |
| private boolean fEnabled; // |
| |
| protected SearchParticipantDescriptor(IConfigurationElement configElement) { |
| fConfigurationElement= configElement; |
| fEnabled= true; |
| } |
| |
| /** |
| * checks whether a participant has all the proper attributes. |
| * |
| * @return returns a status describing the result of the validation |
| */ |
| protected IStatus checkSyntax() { |
| if (fConfigurationElement.getAttribute(ID) == null) { |
| String format= SearchMessages.SearchParticipant_error_noID; |
| String message= Messages.format(format, new String[] { fConfigurationElement.getDeclaringExtension().getUniqueIdentifier() }); |
| return new Status(IStatus.ERROR, JavaPlugin.getPluginId(), 0, message, null); |
| } |
| if (fConfigurationElement.getAttribute(NATURE) == null) { |
| String format= SearchMessages.SearchParticipant_error_noNature; |
| String message= Messages.format(format, new String[] { fConfigurationElement.getAttribute(ID)}); |
| return new Status(IStatus.ERROR, JavaPlugin.getPluginId(), 0, message, null); |
| } |
| |
| if (fConfigurationElement.getAttribute(CLASS) == null) { |
| String format= SearchMessages.SearchParticipant_error_noClass; |
| String message= Messages.format(format, new String[] { fConfigurationElement.getAttribute(ID)}); |
| return new Status(IStatus.ERROR, JavaPlugin.getPluginId(), 0, message, null); |
| } |
| return Status.OK_STATUS; |
| } |
| |
| public String getID() { |
| return fConfigurationElement.getAttribute(ID); |
| } |
| |
| public void disable() { |
| fEnabled= false; |
| } |
| |
| public boolean isEnabled() { |
| return fEnabled; |
| } |
| |
| protected IQueryParticipant create() throws CoreException { |
| try { |
| return (IQueryParticipant) fConfigurationElement.createExecutableExtension(CLASS); |
| } catch (ClassCastException e) { |
| throw new CoreException(new Status(IStatus.ERROR, JavaPlugin.getPluginId(), 0, SearchMessages.SearchParticipant_error_classCast, e)); |
| } |
| } |
| |
| protected String getNature() { |
| return fConfigurationElement.getAttribute(NATURE); |
| } |
| |
| |
| } |