Java tutorial
/** * This file is protected by Copyright. * Please refer to the COPYRIGHT file distributed with this source distribution. * * This file is part of REDHAWK IDE. * * 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. * */ package gov.redhawk.bulkio.ui.handlers; import gov.redhawk.bulkio.ui.BulkIOUIActivator; import gov.redhawk.bulkio.ui.views.SriDataView; import gov.redhawk.model.sca.ScaDomainManagerRegistry; import gov.redhawk.model.sca.ScaUsesPort; import gov.redhawk.model.sca.provider.ScaItemProviderAdapterFactory; import gov.redhawk.sca.util.PluginUtil; import gov.redhawk.sca.util.SubMonitor; import gov.redhawk.ui.port.nxmplot.IPlotView; import gov.redhawk.ui.port.nxmplot.PlotSource; import java.util.HashMap; import java.util.HashSet; import java.util.Iterator; import java.util.LinkedList; import java.util.List; import java.util.Map; import java.util.Set; import org.eclipse.core.commands.AbstractHandler; import org.eclipse.core.commands.ExecutionEvent; import org.eclipse.core.commands.ExecutionException; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.core.runtime.jobs.Job; import org.eclipse.emf.common.notify.Adapter; import org.eclipse.emf.ecore.EObject; import org.eclipse.emf.edit.provider.IItemLabelProvider; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.swt.widgets.Display; import org.eclipse.ui.IViewPart; import org.eclipse.ui.IWorkbenchPage; import org.eclipse.ui.IWorkbenchPart; import org.eclipse.ui.IWorkbenchWindow; import org.eclipse.ui.PartInitException; import org.eclipse.ui.handlers.HandlerUtil; import org.eclipse.ui.statushandlers.StatusManager; public class GetSriHandler extends AbstractHandler { public GetSriHandler() { } @Override public Object execute(ExecutionEvent event) throws ExecutionException { final IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindow(event); IStructuredSelection selection = (IStructuredSelection) HandlerUtil.getActiveMenuSelection(event); final Set<ScaUsesPort> elements = new HashSet<ScaUsesPort>(); final Map<ScaUsesPort, PlotSource> portToPlotSourceMap = new HashMap<ScaUsesPort, PlotSource>(); // Launches from an plot view dropdown IWorkbenchPart activePart = HandlerUtil.getActivePart(event); if (activePart instanceof IPlotView) { IPlotView view = (IPlotView) HandlerUtil.getActivePart(event); List<PlotSource> sources = view.getPlotPageBook().getSources(); for (PlotSource source : sources) { elements.add(source.getInput()); portToPlotSourceMap.put(source.getInput(), source); } } else if (selection == null) { selection = (IStructuredSelection) HandlerUtil.getCurrentSelection(event); } // Launches from a context menu if (selection != null) { for (Object obj : selection.toArray()) { ScaUsesPort port = PluginUtil.adapt(ScaUsesPort.class, obj); if (port != null) { elements.add(port); } } } if (elements.isEmpty()) { return null; } for (final ScaUsesPort port : elements) { if (port == null) { StatusManager.getManager().handle(new Status(IStatus.ERROR, BulkIOUIActivator.PLUGIN_ID, "Failed to find port for SRI Data View", null), StatusManager.LOG); continue; } try { IViewPart view = window.getActivePage().showView(SriDataView.ID, SriDataView.createSecondaryId(port), IWorkbenchPage.VIEW_ACTIVATE); if (view instanceof SriDataView) { final SriDataView sriView = (SriDataView) view; Job job = new Job("SRI View setup...") { @Override protected IStatus run(IProgressMonitor monitor) { final ScaItemProviderAdapterFactory factory = new ScaItemProviderAdapterFactory(); final StringBuilder name = new StringBuilder(); final StringBuilder tooltip = new StringBuilder(); SubMonitor subMonitor = SubMonitor.convert(monitor, "Fetching SRI...", elements.size()); port.fetchAttributes(subMonitor.newChild(1)); List<String> tmpList = new LinkedList<String>(); for (EObject eObj = port; !(eObj instanceof ScaDomainManagerRegistry) && eObj != null; eObj = eObj.eContainer()) { Adapter adapter = factory.adapt(eObj, IItemLabelProvider.class); if (adapter instanceof IItemLabelProvider) { IItemLabelProvider lp = (IItemLabelProvider) adapter; String text = lp.getText(eObj); if (text != null && !text.isEmpty()) { tmpList.add(0, text); } } } String nameStr = port.getName(); if (nameStr != null && nameStr != null && !nameStr.isEmpty()) { name.append(nameStr + " SRI "); } if (!tmpList.isEmpty()) { for (Iterator<String> i = tmpList.iterator(); i.hasNext();) { tooltip.append(i.next()); if (i.hasNext()) { tooltip.append(" -> "); } else { tooltip.append(" -> SRI"); } } tooltip.append("\n"); } PlotSource source = portToPlotSourceMap.get(port); if (source != null) { String connectionId = source.getBulkIOBlockSettings().getConnectionID(); sriView.activateReceiver(port, connectionId); } else { sriView.activateReceiver(port); } factory.dispose(); if (name.length() > 0 || tooltip.length() > 0) { Display display = window.getWorkbench().getDisplay(); display.asyncExec(new Runnable() { @Override public void run() { if (name.length() > 0) { sriView.setPartName(name.toString()); } if (tooltip.length() > 0) { sriView.setTitleToolTip(tooltip.toString()); } } }); } return Status.OK_STATUS; } }; job.schedule(); } } catch (PartInitException e) { StatusManager.getManager().handle( new Status(IStatus.ERROR, BulkIOUIActivator.PLUGIN_ID, "Failed to show SRI Data View", e), StatusManager.LOG | StatusManager.SHOW); } } return null; } }