bundles/org.eclipse.capra.ui.notification/src/org/eclipse/capra/ui/notification/DeleteQuickFix.java

/*******************************************************************************
 * Copyright (c) 2016 Chalmers | University of Gothenburg, rt-labs and others.
 * 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:
 *      Chalmers | University of Gothenburg and rt-labs - initial API and implementation and/or initial documentation
 *******************************************************************************/

package org.eclipse.capra.ui.notification;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.eclipse.capra.core.adapters.ArtifactMetaModelAdapter;
import org.eclipse.capra.core.adapters.Connection;
import org.eclipse.capra.core.adapters.TraceMetaModelAdapter;
import org.eclipse.capra.core.adapters.TracePersistenceAdapter;
import org.eclipse.capra.core.helpers.ExtensionPointHelper;
import org.eclipse.capra.core.helpers.TraceHelper;
import org.eclipse.core.resources.IMarker;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.ui.IMarkerResolution;

/**
 * A quick fix to delete a trace link if one of the linked objects is no longer
 * available.
 *
 * @author Michael Warne
 */
public class DeleteQuickFix implements IMarkerResolution {
	ArtifactMetaModelAdapter artifactAdapter = ExtensionPointHelper.getArtifactWrapperMetaModelAdapter().get();

	private String label;

	DeleteQuickFix(String label) {
		this.label = label;
	}

	@Override
	public String getLabel() {
		return label;
	}

	@Override
	public void run(IMarker marker) {

		ResourceSet resourceSet = new ResourceSetImpl();
		List<Connection> toDelete = new ArrayList<>();
		TracePersistenceAdapter tracePersistenceAdapter = ExtensionPointHelper.getTracePersistenceAdapter().get();
		EObject traceModel = tracePersistenceAdapter.getTraceModel(resourceSet);
		TraceHelper traceHelper = new TraceHelper(traceModel);
		TraceMetaModelAdapter traceMetamodelAdapter = ExtensionPointHelper.getTraceMetamodelAdapter().get();
		EObject artifactModel = tracePersistenceAdapter.getArtifactWrappers(new ResourceSetImpl());

		// get all artifacts
		List<EObject> artifacts = artifactAdapter.getAllArtifacts(artifactModel);

		String artifactContainerFileName = artifactModel.eResource().getURI().lastSegment();
		String markerContainerFileName = new File(marker.getResource().toString()).getName();
		String markerUri = marker.getAttribute(CapraNotificationHelper.OLD_URI, null);

		if (markerContainerFileName.equals(artifactContainerFileName)) {
			// The element that the marker points to is a Capra artifact.
			int index = -1;
			for (EObject aw : artifacts) {
				if (artifactAdapter.getArtifactUri(aw).equals(markerUri)) {
					toDelete = traceMetamodelAdapter.getConnectedElements(aw, traceModel);
				}
				index++;
			}
			// delete trace links associated with deleted artifact
			traceMetamodelAdapter.deleteTrace(toDelete, traceModel);
			EObject toRemove = artifacts.get(index);
			// Delete selected artifacts.
			EcoreUtil.delete(toRemove);
			URI artifactModelURI = EcoreUtil.getURI(artifactModel);
			Resource resourceForArtifacts = resourceSet.createResource(artifactModelURI);
			resourceForArtifacts.getContents().add(artifactModel);

			try {
				resourceForArtifacts.save(null);
			} catch (IOException e) {
				e.printStackTrace();
			}
			// delete Marker
			try {
				marker.delete();
				MessageDialog.openWarning(null, "TraceLinkDeleted", "Links successfully deleted");
			} catch (CoreException e) {
				e.printStackTrace();
			}
		} else {
			// The element that the marker points to is an EObject and is not
			// contained in the Capra artifact model.
			URI deletedEObjectUri = URI.createURI(markerUri);
			for (Connection c : traceMetamodelAdapter.getAllTraceLinks(traceModel)) {
				for (EObject item : traceHelper.getTracedElements(c)) {
					URI itemUri = CapraNotificationHelper.getFileUri(item);
					if (deletedEObjectUri.equals(itemUri)) {
						toDelete.add(c);
						break;
					}
				}
			}

			// Delete selected traces.
			traceMetamodelAdapter.deleteTrace(toDelete, traceModel);
			try {
				marker.delete();
			} catch (CoreException e) {
				e.printStackTrace();
			}
		}
	}
}