/*******************************************************************************
* Copyright (c) 2006 Jeff Mesnil
* 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:
* "Rob Stryker" <rob.stryker@redhat.com> - Initial implementation
*******************************************************************************/
package net.jmesnil.jmx.ui;
import java.util.ArrayList;
import java.util.HashMap;
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.IExtensionRegistry;
import org.eclipse.core.runtime.InvalidRegistryObjectException;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.wizard.IWizardPage;
import org.eclipse.ui.plugin.AbstractUIPlugin;
/**
* Extension Manager for UI extensions
*/
public class UIExtensionManager {
/* Wizard Pages */
private static final String CONNECTION_PAGES = "net.jmesnil.jmx.ui.providerUI"; //$NON-NLS-1$
private static final String ID = "id"; //$NON-NLS-1$
private static final String NAME = "name"; //$NON-NLS-1$
private static final String ICON = "icon"; //$NON-NLS-1$
private static final String CLASS = "class"; //$NON-NLS-1$
public static class ConnectionProviderUI {
String id, name, icon;
IConfigurationElement[] wizardPages;
ImageDescriptor imageDescriptor;
public ConnectionProviderUI(IConfigurationElement element) {
id = element.getAttribute(ID);
name = element.getAttribute(NAME);
icon = element.getAttribute(ICON);
wizardPages = element.getChildren();
String pluginName = element.getDeclaringExtension().getContributor().getName();
imageDescriptor = AbstractUIPlugin.imageDescriptorFromPlugin(pluginName, icon);
}
public String getId() {
return id;
}
public String getName() {
return name;
}
public String getIcon() {
return icon;
}
public ImageDescriptor getImageDescriptor() {
return imageDescriptor;
}
public ConnectionWizardPage[] createPages() {
ArrayList<ConnectionWizardPage> list = new ArrayList<ConnectionWizardPage>();
for( int i = 0; i < wizardPages.length; i++ ) {
try {
ConnectionWizardPage wp = (ConnectionWizardPage)wizardPages[i].createExecutableExtension(CLASS);
list.add(wp);
} catch( CoreException ce ) {
ce.printStackTrace();
// TODO LOG
}
}
return list.toArray(new ConnectionWizardPage[list.size()]);
}
}
private static HashMap<String, ConnectionProviderUI> connectionUIElements;
public static HashMap<String, ConnectionProviderUI> getConnectionUIElements() {
if( connectionUIElements == null )
loadConnectionUI();
return connectionUIElements;
}
public static ConnectionProviderUI getConnectionProviderUI(String id) {
if( connectionUIElements == null )
loadConnectionUI();
return connectionUIElements.get(id);
}
private static void loadConnectionUI() {
HashMap<String, ConnectionProviderUI> map = new HashMap<String, ConnectionProviderUI>();
IExtension[] extensions = findExtension(CONNECTION_PAGES);
ConnectionProviderUI pUI;
for (int i = 0; i < extensions.length; i++) {
IConfigurationElement elements[] = extensions[i].getConfigurationElements();
for (int j = 0; j < elements.length; j++) {
try {
pUI = new ConnectionProviderUI(elements[j]);
map.put(pUI.getId(), pUI);
} catch (InvalidRegistryObjectException e) {
// TODO document
}
}
}
connectionUIElements = map;
}
public static IWizardPage[] getNewConnectionWizardPages(String typeName) {
ConnectionProviderUI ui = connectionUIElements.get(typeName);
if( ui != null ) {
IWizardPage[] pages = ui.createPages();
if( pages != null )
return pages;
}
return new IWizardPage[]{};
}
private static IExtension[] findExtension(String extensionId) {
IExtensionRegistry registry = Platform.getExtensionRegistry();
IExtensionPoint extensionPoint = registry
.getExtensionPoint(extensionId);
return extensionPoint.getExtensions();
}
}