Java tutorial
/******************************************************************************* * Copyright (c) 2004, 2007 Boeing. * 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: * Boeing - initial API and implementation *******************************************************************************/ package org.eclipse.osee.ote.ui.define.viewers; import java.net.URI; import java.util.ArrayList; import java.util.Arrays; import java.util.HashSet; import java.util.List; import java.util.Set; import java.util.logging.Level; import org.eclipse.core.resources.IResource; import org.eclipse.core.runtime.IAdaptable; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.core.runtime.jobs.IJobChangeEvent; import org.eclipse.core.runtime.jobs.Job; import org.eclipse.core.runtime.jobs.JobChangeAdapter; import org.eclipse.jface.util.LocalSelectionTransfer; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.TreeSelection; import org.eclipse.osee.framework.core.enums.CoreArtifactTypes; import org.eclipse.osee.framework.core.model.Branch; import org.eclipse.osee.framework.jdk.core.type.OseeCoreException; import org.eclipse.osee.framework.logging.OseeLog; import org.eclipse.osee.framework.skynet.core.artifact.Artifact; import org.eclipse.osee.framework.skynet.core.artifact.ArtifactData; import org.eclipse.osee.framework.ui.skynet.artifact.ArtifactTransfer; import org.eclipse.osee.ote.define.jobs.OutfileToArtifactJob; import org.eclipse.osee.ote.define.utilities.OutfileParserExtensionManager; import org.eclipse.osee.ote.ui.define.OteUiDefinePlugin; import org.eclipse.osee.ote.ui.define.dialogs.BranchComboDialog; import org.eclipse.osee.ote.ui.define.jobs.AddArtifactsToViewerJob; import org.eclipse.osee.ote.ui.define.jobs.ReportErrorsJob; import org.eclipse.osee.ote.ui.define.views.TestRunView; import org.eclipse.swt.dnd.DND; import org.eclipse.swt.dnd.DragSource; import org.eclipse.swt.dnd.DragSourceEvent; import org.eclipse.swt.dnd.DragSourceListener; import org.eclipse.swt.dnd.DropTarget; import org.eclipse.swt.dnd.DropTargetAdapter; import org.eclipse.swt.dnd.DropTargetEvent; import org.eclipse.swt.dnd.Transfer; /** * @author Roberto E. Escobar */ public class DragDropHandler { private final XViewerDataManager viewerDataManager; public DragDropHandler(XViewerDataManager viewerDataManager) { this.viewerDataManager = viewerDataManager; setupDropSupport(); setupDragSupport(); } private void setupDropSupport() { DropTarget dropTarget = new DropTarget(viewerDataManager.getControl(), DND.DROP_COPY); dropTarget.setTransfer( new Transfer[] { LocalSelectionTransfer.getTransfer(), ArtifactTransfer.getInstance(), }); dropTarget.addDropListener(new DropTargetAdapter() { @Override public void drop(DropTargetEvent event) { try { performDrop(event); } catch (OseeCoreException ex) { OseeLog.log(OteUiDefinePlugin.class, Level.SEVERE, ex); } } @Override public void dragOver(DropTargetEvent event) { event.detail = DND.DROP_COPY; } }); } private void setupDragSupport() { DragSource dragSource = new DragSource(viewerDataManager.getControl(), DND.DROP_COPY); dragSource.setTransfer(new Transfer[] { ArtifactTransfer.getInstance() }); dragSource.addDragListener(new DragSourceListener() { @Override public void dragFinished(DragSourceEvent event) { } @Override public void dragSetData(DragSourceEvent event) { List<Artifact> artifacts = viewerDataManager.getSelectedArtifacts(); if (artifacts.size() > 0) { event.data = new ArtifactData(artifacts.toArray(new Artifact[artifacts.size()]), "", TestRunView.VIEW_ID); } } @Override public void dragStart(DragSourceEvent event) { event.doit = false; List<Artifact> artifacts = viewerDataManager.getSelectedArtifacts(); if (artifacts.size() > 0) { event.doit = true; } } }); } private void performDrop(DropTargetEvent e) throws OseeCoreException { Object object = e.data; if (object instanceof ArtifactData) { handleArtifactDrops((ArtifactData) object); } else if (object instanceof TreeSelection) { StructuredSelection selection = (StructuredSelection) object; if (selection.size() > 0) { URI[] iFiles = toResourceArray(selection.toArray()); if (iFiles.length > 0) { try { handleResourceDrops(iFiles); } catch (OseeCoreException ex) { OseeLog.log(OteUiDefinePlugin.class, Level.SEVERE, ex); } } else { OseeLog.log(OteUiDefinePlugin.class, Level.WARNING, "No valid files dropped"); } } } } private URI[] toResourceArray(Object[] objects) { List<URI> toReturn = new ArrayList<URI>(); for (Object object : objects) { if (object instanceof IAdaptable) { Object resource = ((IAdaptable) object).getAdapter(IResource.class); if (resource != null) { IResource iResource = (IResource) resource; if (isResourceAllowed(iResource)) { toReturn.add(iResource.getLocationURI()); } } } } return toReturn.toArray(new URI[toReturn.size()]); } private boolean isResourceAllowed(IResource resource) { if (resource.getType() == IResource.FILE && resource.isAccessible()) { String toCheck = resource.getFileExtension(); try { for (String extension : OutfileParserExtensionManager.getInstance().getSupportedExtensions()) { if (toCheck.equalsIgnoreCase(extension)) { return true; } } } catch (OseeCoreException ex) { // Do Nothing } } return false; } private void handleArtifactDrops(ArtifactData artifactData) throws OseeCoreException { Artifact[] artifactsDropped = artifactData.getArtifacts(); Set<Artifact> artifactsToAdd = new HashSet<Artifact>(); for (Artifact artifact : artifactsDropped) { if (artifact.isOfType(CoreArtifactTypes.TestRun)) { artifactsToAdd.add(artifact); } } addArtifactsToTable(new ArrayList<Artifact>(artifactsToAdd)); } private void handleResourceDrops(URI[] iFiles) throws OseeCoreException { Branch branch = BranchComboDialog.getBranchFromUser(); if (branch != null) { OutfileToArtifactJob artifactJob = new OutfileToArtifactJob(branch, iFiles); artifactJob.addJobChangeListener(new JobChangeAdapter() { @Override public void done(IJobChangeEvent event) { IStatus status = event.getResult(); if (status.equals(Status.OK_STATUS)) { OutfileToArtifactJob job = (OutfileToArtifactJob) event.getJob(); Artifact[] results = job.getResults(); URI[] unparseable = job.getUnparseableFiles(); reportUnparseableItems(unparseable); addArtifactsToTable(Arrays.asList(results)); } } }); artifactJob.schedule(); } } private void addArtifactsToTable(final List<Artifact> artifacts) { Job job = new AddArtifactsToViewerJob(viewerDataManager, artifacts); job.schedule(); } private void reportUnparseableItems(final URI[] unparseable) { if (unparseable.length > 0) { String title = "Artifact Drop Error"; String message = "The following file(s) had errors during the parsing operation: "; ReportErrorsJob.openError(title, message, (Object[]) unparseable); } } }