/*******************************************************************************
* Copyright (c) 2006 Sybase, Inc. 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:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.pagedesigner.meta.internal;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtension;
import org.eclipse.core.runtime.IExtensionPoint;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jst.pagedesigner.IJMTConstants;
import org.eclipse.jst.pagedesigner.PDPlugin;
import org.eclipse.jst.pagedesigner.meta.ITagAttributeCellEditorFactory;
/**
* Read the registry to find out all the CellEditorFactory.
*
* @author mengbo
*/
public class CellEditorFacRegistryReader {
static ITagAttributeCellEditorFactory[] _factories = null;
/**
* @return ITagAttributeCellEditorFactory[]
*/
public static synchronized ITagAttributeCellEditorFactory[] getAllFactories() {
if (_factories == null) {
_factories = readAllFactories();
}
return _factories;
}
private static ITagAttributeCellEditorFactory[] readAllFactories() {
List result = new ArrayList();
IExtensionPoint extensionPoint = Platform.getExtensionRegistry()
.getExtensionPoint(PDPlugin.getPluginId(),
IJMTConstants.EXTENSION_POINT_PAGEDESIGNER);
IExtension[] extensions = extensionPoint.getExtensions();
for (int i = 0; i < extensions.length; i++) {
IExtension ext = extensions[i];
IConfigurationElement[] facs = ext.getConfigurationElements();
for (int j = 0; j < facs.length; j++) {
if (facs[j].getName().equals(
IJMTConstants.TAG_ATTRIBUTE_CELLEDITOR_FACTORY)) {
Object obj;
try {
obj = facs[j].createExecutableExtension("class"); //$NON-NLS-1$
if (obj instanceof ITagAttributeCellEditorFactory) {
result.add(obj);
}
} catch (CoreException e) {
// ignore the exception
e.printStackTrace();
}
}
}
}
ITagAttributeCellEditorFactory[] ret = new ITagAttributeCellEditorFactory[result
.size()];
result.toArray(ret);
return ret;
}
}