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/*******************************************************************************
* 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.jem.util.RegistryReader;
import org.eclipse.jem.util.logger.proxy.Logger;
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);
}
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) {
Logger.getLogger().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) {
Logger.getLogger().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)) {
Logger.getLogger().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) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return wizard;
}
}
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