/*******************************************************************************
* Copyright (c) 2008, 2011 Obeo.
* 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.emf.eef.runtime.impl.services;
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.emf.eef.runtime.EEFRuntimePlugin;
import org.eclipse.emf.eef.runtime.api.providers.IPropertiesEditionPartProvider;
import org.eclipse.emf.eef.runtime.api.providers.IPropertiesEditionPartProviderFactory;
import org.eclipse.emf.eef.runtime.impl.providers.StandardPropertiesEditionPartProviderFactory;
/**
* Service that manage all the registered {@link IPropertiesEditionPartProviderFactory}.
*
* @author <a href="mailto:goulwen.lefur@obeo.fr">Goulwen Le Fur</a>
*/
public class PropertiesEditionPartProviderService implements IPropertiesEditionPartProviderFactory {
/**
* The extension name.
*/
public static final String EXTENSION_NAME = "PropertiesEditionPartProvider"; //$NON-NLS-1$
/**
* The extension's element name.
*/
private static final String EXTENSION_ELEMENT_NAME = "PropertiesEditionPartProvider"; //$NON-NLS-1$
/**
* The element's attribute name.
*/
private static final String EXTENSION_ATTRIBUTE_NAME = "providerClass"; //$NON-NLS-1$
/**
* A singleton for the service.
*/
private static PropertiesEditionPartProviderService instance = new PropertiesEditionPartProviderService();
/**
* The factory where the providers are registered.
*/
private IPropertiesEditionPartProviderFactory editPropertiesPartProviderFactory;
/**
* Default constructor.
*/
private PropertiesEditionPartProviderService() {
editPropertiesPartProviderFactory = new StandardPropertiesEditionPartProviderFactory();
configureService();
}
/**
* Singleton constructor.
*
* @return the Singleton instance
*/
public static PropertiesEditionPartProviderService getInstance() {
return instance;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.eef.runtime.api.providers.IPropertiesEditionPartProviderFactory#getProvider(java.lang.Object)
*/
public IPropertiesEditionPartProvider getProvider(Object key) {
return editPropertiesPartProviderFactory.getProvider(key);
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.eef.runtime.api.providers.IPropertiesEditionPartProviderFactory#provides(java.lang.Object)
*/
public boolean provides(Object key) {
return editPropertiesPartProviderFactory.provides(key);
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.eef.runtime.api.providers.IPropertiesEditionPartProviderFactory#register(org.eclipse.emf.eef.runtime.api.providers.IPropertiesEditionPartProvider)
*/
public void register(IPropertiesEditionPartProvider editPropertiesProvider) {
editPropertiesPartProviderFactory.register(editPropertiesProvider);
}
/**
* Load all the providers registered by extension point.
*/
private void configureService() {
IExtensionPoint extensionPoint = Platform.getExtensionRegistry().getExtensionPoint(
EEFRuntimePlugin.PLUGIN_ID, EXTENSION_NAME);
IExtension[] extensions = extensionPoint.getExtensions();
for (int extensionIndex = 0; extensionIndex < extensions.length; extensionIndex++) {
IExtension extension = extensions[extensionIndex];
IConfigurationElement[] configurationElements = extension.getConfigurationElements();
for (int i = 0; i < configurationElements.length; i++) {
IConfigurationElement cfg = configurationElements[i];
if (EXTENSION_ELEMENT_NAME.equals(cfg.getName())) {
try {
register((IPropertiesEditionPartProvider)cfg
.createExecutableExtension(EXTENSION_ATTRIBUTE_NAME));
} catch (CoreException e) {
e.printStackTrace();
}
}
}
}
}
}