| /******************************************************************************** |
| * Copyright (c) 2011 Eike Stepper (Berlin, Germany) and others. |
| * |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Eike Stepper - initial API and implementation |
| ********************************************************************************/ |
| package org.eclipse.emf.ecp.internal.ui.model; |
| |
| import java.util.Collection; |
| |
| import org.eclipse.emf.ecp.core.ECPProvider; |
| import org.eclipse.emf.ecp.core.ECPRepository; |
| import org.eclipse.emf.ecp.core.ECPRepositoryManager; |
| import org.eclipse.emf.ecp.core.util.ECPProviderAware; |
| import org.eclipse.emf.ecp.core.util.ECPUtil; |
| import org.eclipse.emf.ecp.core.util.observer.ECPRepositoriesChangedObserver; |
| import org.eclipse.emf.ecp.core.util.observer.ECPRepositoryContentChangedObserver; |
| import org.eclipse.emf.ecp.spi.core.InternalProvider; |
| import org.eclipse.emf.ecp.spi.core.util.InternalChildrenList; |
| |
| /** |
| * @author Eike Stepper |
| * @author Eugen Neufeld |
| */ |
| public class RepositoriesContentProvider extends ECPContentProvider<ECPRepositoryManager> implements |
| // ECPRepositoryManager.Listener |
| ECPRepositoriesChangedObserver, ECPRepositoryContentChangedObserver { |
| private final ECPProvider allowedProvider; |
| |
| public RepositoriesContentProvider() { |
| allowedProvider = null; |
| } |
| |
| public RepositoriesContentProvider(ECPProvider allowedProvider) { |
| this.allowedProvider = allowedProvider; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public void repositoriesChanged(Collection<ECPRepository> oldRepositories, |
| Collection<ECPRepository> newRepositories) { |
| refreshViewer(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public void contentChanged(ECPRepository repository, Collection<Object> objects) { |
| // do always a full refresh |
| refreshViewer(true, objects.toArray()); |
| } |
| |
| @Override |
| protected void connectInput(ECPRepositoryManager input) { |
| super.connectInput(input); |
| ECPUtil.getECPObserverBus().register(this); |
| } |
| |
| @Override |
| protected void disconnectInput(ECPRepositoryManager input) { |
| ECPUtil.getECPObserverBus().register(this); |
| super.disconnectInput(input); |
| } |
| |
| @Override |
| protected boolean isSlow(Object parent) { |
| if (parent instanceof ECPProviderAware) { |
| final InternalProvider provider = (InternalProvider) ((ECPProviderAware) parent).getProvider(); |
| if (provider != null) { |
| return provider.isSlow(parent); |
| } |
| } |
| return super.isSlow(parent); |
| } |
| |
| @Override |
| protected void fillChildren(Object parent, InternalChildrenList childrenList) { |
| if (parent == ECPUtil.getECPRepositoryManager()) { |
| if (allowedProvider == null) { |
| childrenList.addChildren(ECPUtil.getECPRepositoryManager().getRepositories()); |
| } else { |
| for (final ECPRepository ecpRepository : ECPUtil.getECPRepositoryManager().getRepositories()) { |
| if (allowedProvider.equals(ecpRepository.getProvider())) { |
| childrenList.addChild(ecpRepository); |
| } |
| } |
| } |
| } else { |
| super.fillChildren(parent, childrenList); |
| } |
| } |
| } |