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/*****************************************************************************
* Copyright (c) 2021 Christian W. Damus, CEA LIST, 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
* http://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Christian W. Damus - Initial API and implementation
* Christian W. Damus - bugs 570097, 573788
*
*****************************************************************************/
package org.eclipse.papyrus.toolsmiths.validation.common.quickfix;
import java.util.Optional;
import java.util.stream.Stream;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IMarker;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EValidator;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.emf.edit.domain.IEditingDomainProvider;
import org.eclipse.papyrus.toolsmiths.validation.common.checkers.CommonProblemConstants;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IEditorReference;
import org.eclipse.ui.IMarkerResolution;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.part.FileEditorInput;
/**
* Helper class with utility methods used by {@linkplain IMarkerResolution marker resolutions}.
*/
public final class CommonMarkerResolutionUtils {
/** Returns the model name stored in the marker attribute {@link CommonProblemConstants#MODEL_NAME}. */
public static Optional<String> getModelName(IMarker marker) {
return Optional.ofNullable(marker.getAttribute(CommonProblemConstants.MODEL_NAME, null));
}
/** Returns the model path stored in the marker attribute {@link CommonProblemConstants#MODEL_PATH}. */
public static Optional<IPath> getModelPath(IMarker marker) {
return Optional.ofNullable(marker.getAttribute(CommonProblemConstants.MODEL_PATH, null)).map(Path::new);
}
/** Get the object of the given {@code type} from an editing {@code domain}, identified by the URI in the {@code marker}. */
public static <T extends EObject> Optional<T> getModelObject(IMarker marker, Class<T> type, EditingDomain domain) {
String targetURI = marker.getAttribute(EValidator.URI_ATTRIBUTE, null);
return Optional.ofNullable(targetURI).map(uri -> URI.createURI(uri, true))
.map(uri -> domain.getResourceSet().getEObject(uri, true))
.filter(type::isInstance)
.map(type::cast);
}
/** Get the editing domain from an editor that is currently open on the resource of a {@code marker}, if any. */
public static Optional<EditingDomain> getOpenEditingDomain(IMarker marker) {
IResource resource = marker.getResource();
if (!(resource instanceof IFile) || !PlatformUI.isWorkbenchRunning()) {
return Optional.empty();
}
IEditorInput editorInput = new FileEditorInput((IFile) resource);
IWorkbenchWindow[] windows = PlatformUI.getWorkbench().getWorkbenchWindows();
return Stream.of(windows).map(IWorkbenchWindow::getActivePage)
.flatMap(page -> Stream.of(page.findEditors(editorInput, null, IWorkbenchPage.MATCH_INPUT)))
.map(CommonMarkerResolutionUtils::getEditingDomain)
.findAny();
}
private static EditingDomain getEditingDomain(IEditorReference editorRef) {
EditingDomain result = null;
IEditorPart editor = editorRef.getEditor(true);
if (editor instanceof IEditingDomainProvider) {
result = ((IEditingDomainProvider) editor).getEditingDomain();
}
if (result == null && editor != null) {
result = editor.getAdapter(EditingDomain.class);
}
return result;
}
}
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