| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.sling.ide.eclipse.ui.internal; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.eclipse.core.expressions.IEvaluationContext; |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.ui.ISources; |
| import org.eclipse.wst.server.core.IModule; |
| import org.eclipse.wst.server.core.IServer; |
| import org.eclipse.wst.server.core.ServerCore; |
| import org.eclipse.wst.server.core.ServerUtil; |
| |
| public abstract class SelectionUtils { |
| |
| public static List<IServer> getServersLinkedToProject(IStructuredSelection sel, IProgressMonitor monitor) { |
| |
| if (sel.isEmpty()) { |
| return Collections.emptyList(); |
| } |
| |
| Object first = sel.iterator().next(); |
| |
| if (!(first instanceof IProject)) { |
| return Collections.emptyList(); |
| } |
| |
| IProject project = (IProject) first; |
| return getServersLinkedToProject(project, monitor); |
| } |
| |
| public static List<IServer> getServersLinkedToProject(IProject project, |
| IProgressMonitor monitor) { |
| if (project == null) { |
| return Collections.emptyList(); |
| } |
| List<IServer> servers = new ArrayList<>(); |
| |
| IModule[] modules = ServerUtil.getModules(project); |
| |
| for (IServer server : ServerCore.getServers()) { |
| for (IModule module : modules) { |
| if (ServerUtil.containsModule(server, module, monitor)) { |
| servers.add(server); |
| } |
| } |
| } |
| |
| return servers; |
| } |
| |
| /** |
| * Returns the first object contained in the specified <tt>sel</tt> |
| * |
| * @param selection the selection object |
| * @param type the type of the selected object |
| * @return the selected value, or <code>null</code> |
| */ |
| @SuppressWarnings("unchecked") // cast guarded by type.isInstance |
| public static <T> T getFirst(ISelection selection, Class<T> type) { |
| |
| if ( selection instanceof IStructuredSelection) { |
| Object selected = ((IStructuredSelection) selection).getFirstElement(); |
| |
| if ( type.isInstance(selected)) { |
| return (T) selected; |
| } |
| } |
| |
| return null; |
| } |
| |
| public static ISelection getSelectionFromEvaluationContext(Object evaluationContext) { |
| if ( !(evaluationContext instanceof IEvaluationContext)) { |
| return null; |
| } |
| |
| IEvaluationContext ctx = (IEvaluationContext) evaluationContext; |
| Object selection = ctx.getVariable(ISources.ACTIVE_CURRENT_SELECTION_NAME); |
| if ( !(selection instanceof ISelection)) { |
| return null; |
| } |
| |
| return (ISelection) selection; |
| } |
| |
| private SelectionUtils() { |
| |
| } |
| } |