| /******************************************************************************* |
| * Copyright (c) 2003, 2005 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.wst.common.frameworks.internal.operation.extensionui; |
| |
| import java.util.HashMap; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.wst.common.core.util.RegistryReader; |
| import org.eclipse.wst.common.frameworks.datamodel.IDataModel; |
| import org.eclipse.wst.common.frameworks.internal.datamodel.ui.DataModelWizard; |
| import org.eclipse.wst.common.frameworks.internal.ui.WTPUIPlugin; |
| |
| public class DataModelWizardExtensionReader extends RegistryReader { |
| |
| private static final String EXTENSION = "DataModelWizardExtension"; //$NON-NLS-1$ |
| private static final String ELEMENT = "DataModelWizard"; //$NON-NLS-1$ |
| private static final String ATTRIBUTE_ID = "id"; //$NON-NLS-1$ |
| private static final String ATTRIBUTE_CLASS = "class"; //$NON-NLS-1$ |
| |
| private HashMap extensions; |
| |
| public DataModelWizardExtensionReader() { |
| super(WTPUIPlugin.PLUGIN_ID, EXTENSION); |
| } |
| |
| @Override |
| public boolean readElement(IConfigurationElement element) { |
| if (!element.getName().equals(ELEMENT)) |
| return false; |
| String id = element.getAttribute(ATTRIBUTE_ID); |
| if (null == id || id.trim().length() == 0) { |
| WTPUIPlugin.logError(new RuntimeException("Extension:" + EXTENSION + " Element:" + ELEMENT + " is missing " + ATTRIBUTE_ID)); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| String className = element.getAttribute(ATTRIBUTE_CLASS); |
| if (null == className || className.trim().length() == 0) { |
| WTPUIPlugin.logError(new RuntimeException("Extension:" + EXTENSION + " Element:" + ELEMENT + " is missing " + ATTRIBUTE_CLASS)); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| addExtension(id, element); |
| return true; |
| } |
| |
| private void addExtension(String id, IConfigurationElement element) { |
| if (extensions.containsKey(id)) { |
| WTPUIPlugin.logError(new RuntimeException("Duplicate " + ELEMENT + " " + ATTRIBUTE_ID + " " + id)); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| extensions.put(id, element); |
| } |
| |
| protected IConfigurationElement getExtension(String id) { |
| if (extensions == null) { |
| extensions = new HashMap(); |
| readRegistry(); |
| } |
| IConfigurationElement element = (IConfigurationElement) extensions.get(id); |
| if (null == element) { |
| throw new RuntimeException("Extension:" + EXTENSION + " Element:" + ELEMENT + " not found for " + ATTRIBUTE_ID + ": " + id); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ |
| } |
| return element; |
| } |
| |
| public DataModelWizard getWizard(IDataModel dataModel) { |
| DataModelWizard wizard = null; |
| IConfigurationElement element = getExtension(dataModel.getID()); |
| |
| try { |
| wizard = (DataModelWizard) element.createExecutableExtension(ATTRIBUTE_CLASS); |
| wizard.setDataModel(dataModel); |
| } catch (CoreException e) { |
| WTPUIPlugin.logError(e); |
| } |
| |
| return wizard; |
| } |
| } |