| /******************************************************************************* |
| * Copyright (c) 2016-2017 Red Hat Inc. 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: |
| * Mickael Istria (Red Hat Inc.) - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.core.internal.resources; |
| |
| import java.io.*; |
| import java.util.*; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| import org.eclipse.core.internal.utils.FileUtil; |
| import org.eclipse.core.internal.utils.Messages; |
| import org.eclipse.core.resources.*; |
| import org.eclipse.core.runtime.*; |
| import org.eclipse.core.runtime.jobs.Job; |
| import org.eclipse.core.runtime.preferences.IEclipsePreferences; |
| import org.eclipse.core.runtime.preferences.IEclipsePreferences.IPreferenceChangeListener; |
| import org.eclipse.core.runtime.preferences.IEclipsePreferences.PreferenceChangeEvent; |
| import org.eclipse.core.runtime.preferences.InstanceScope; |
| import org.eclipse.osgi.util.NLS; |
| |
| public class CheckMissingNaturesListener implements IResourceChangeListener, IPreferenceChangeListener { |
| |
| public static final String MARKER_TYPE = ResourcesPlugin.getPlugin().getBundle().getSymbolicName() + ".unknownNature"; //$NON-NLS-1$ |
| public static final String NATURE_ID_ATTRIBUTE = "natureId"; //$NON-NLS-1$ |
| |
| @Override |
| public void resourceChanged(IResourceChangeEvent event) { |
| if (event.getDelta() == null) { |
| return; |
| } |
| try { |
| final Set<IProject> modifiedProjects = new HashSet<>(); |
| event.getDelta().accept(delta -> { |
| if (delta.getResource() != null && delta.getResource().getType() == IResource.PROJECT && (delta.getKind() == IResourceDelta.ADDED || delta.getKind() == IResourceDelta.CHANGED)) { |
| modifiedProjects.add((IProject) delta.getResource()); |
| } |
| return delta.getResource() == null || delta.getResource().getType() == IResource.ROOT; |
| }); |
| updateMarkers(modifiedProjects); |
| } catch (CoreException e) { |
| ResourcesPlugin.getPlugin().getLog().log(new Status(IStatus.ERROR, ResourcesPlugin.getPlugin().getBundle().getSymbolicName(), e.getMessage(), e)); |
| } |
| } |
| |
| int getMissingNatureSeverity(final IProject project) { |
| int severity = PreferenceInitializer.PREF_MISSING_NATURE_MARKER_SEVERITY_DEFAULT; |
| IEclipsePreferences node = InstanceScope.INSTANCE.getNode(ResourcesPlugin.PI_RESOURCES); |
| if (node != null) { |
| severity = node.getInt(ResourcesPlugin.PREF_MISSING_NATURE_MARKER_SEVERITY, PreferenceInitializer.PREF_MISSING_NATURE_MARKER_SEVERITY_DEFAULT); |
| } |
| return severity; |
| } |
| |
| @Override |
| public void preferenceChange(PreferenceChangeEvent event) { |
| if (ResourcesPlugin.PREF_MISSING_NATURE_MARKER_SEVERITY.equals(event.getKey())) { |
| final int newSeverity = event.getNewValue() != null ? Integer.parseInt((String) event.getNewValue()) : PreferenceInitializer.PREF_MISSING_NATURE_MARKER_SEVERITY_DEFAULT; |
| final int oldSeverity = event.getOldValue() != null ? Integer.parseInt((String) event.getOldValue()) : PreferenceInitializer.PREF_MISSING_NATURE_MARKER_SEVERITY_DEFAULT; |
| if (newSeverity < 0) { |
| removeAllMarkers(ResourcesPlugin.getWorkspace().getRoot()); |
| } else if (oldSeverity < 0 && newSeverity >= 0) { |
| updateMarkers(Arrays.asList(ResourcesPlugin.getWorkspace().getRoot().getProjects())); |
| } else { |
| updateExistingMarkersSeverity(ResourcesPlugin.getWorkspace().getRoot(), newSeverity); |
| } |
| } |
| } |
| |
| private void removeAllMarkers(IContainer workspaceRootOrProject) { |
| final Collection<IMarker> markers = getRelatedMarkers(workspaceRootOrProject); |
| if (markers.isEmpty()) { |
| return; |
| } |
| WorkspaceJob job = new WorkspaceJob(Messages.updateUnknownNatureMarkers) { |
| @Override |
| public IStatus runInWorkspace(IProgressMonitor monitor) throws CoreException { |
| for (IMarker marker : markers) { |
| if (marker.exists() && marker.getResource().isAccessible()) { |
| marker.delete(); |
| } |
| } |
| return Status.OK_STATUS; |
| } |
| |
| @Override |
| public boolean belongsTo(Object family) { |
| return super.belongsTo(family) || MARKER_TYPE.equals(family); |
| } |
| }; |
| job.setUser(false); |
| job.setSystem(true); |
| job.setPriority(Job.DECORATE); |
| job.setRule(workspaceRootOrProject); |
| job.schedule(); |
| } |
| |
| private void updateExistingMarkersSeverity(IContainer workspaceRootOrProject, int newSeverity) { |
| final Collection<IMarker> markers = getRelatedMarkers(workspaceRootOrProject); |
| if (markers.isEmpty()) { |
| return; |
| } |
| WorkspaceJob job = new WorkspaceJob(Messages.updateUnknownNatureMarkers) { |
| @Override |
| public IStatus runInWorkspace(IProgressMonitor monitor) throws CoreException { |
| for (IMarker marker : markers) { |
| if (marker.exists() && marker.getResource().isAccessible()) { |
| marker.setAttribute(IMarker.SEVERITY, newSeverity); |
| } |
| } |
| return Status.OK_STATUS; |
| } |
| |
| @Override |
| public boolean belongsTo(Object family) { |
| return super.belongsTo(family) || MARKER_TYPE.equals(family); |
| } |
| }; |
| job.setUser(false); |
| job.setSystem(true); |
| job.setPriority(Job.DECORATE); |
| job.setRule(workspaceRootOrProject); |
| job.schedule(); |
| } |
| |
| private void updateMarkers(Collection<IProject> projects) { |
| for (IProject project : projects) { |
| if (!project.isAccessible()) { |
| continue; |
| } |
| int severity = getMissingNatureSeverity(project); |
| try { |
| if (severity < 0) { |
| removeAllMarkers(project); |
| continue; |
| } |
| |
| final Set<String> missingNatures = new HashSet<>(); |
| for (String natureId : project.getDescription().getNatureIds()) { |
| if (project.getWorkspace().getNatureDescriptor(natureId) == null) { |
| missingNatures.add(natureId); |
| } |
| } |
| |
| final Set<IMarker> toRemove = new HashSet<>(); |
| for (IMarker existingMarker : getRelatedProjectMarkers(project)) { |
| String markerNature = existingMarker.getAttribute(NATURE_ID_ATTRIBUTE, ""); //$NON-NLS-1$ |
| if (!missingNatures.contains(markerNature)) { |
| toRemove.add(existingMarker); |
| } else { |
| // no need to create a new marker |
| missingNatures.remove(markerNature); |
| } |
| } |
| |
| if (!toRemove.isEmpty() || !missingNatures.isEmpty()) { |
| WorkspaceJob workspaceJob = new WorkspaceJob(Messages.updateUnknownNatureMarkers) { |
| @Override |
| public IStatus runInWorkspace(IProgressMonitor monitor) throws CoreException { |
| for (IMarker marker : toRemove) { |
| marker.delete(); |
| } |
| IResource targetResource = project.getFile(IProjectDescription.DESCRIPTION_FILE_NAME); |
| if (!targetResource.isAccessible()) { |
| targetResource = project; |
| } |
| for (String natureId : missingNatures) { |
| IMarker marker = targetResource.createMarker(MARKER_TYPE); |
| marker.setAttribute(IMarker.SEVERITY, getMissingNatureSeverity(project)); |
| marker.setAttribute(IMarker.MESSAGE, NLS.bind(Messages.natures_missingNature, natureId)); |
| marker.setAttribute(NATURE_ID_ATTRIBUTE, natureId); |
| if (targetResource.getType() == IResource.FILE) { |
| updateRange(marker, natureId, (IFile) targetResource); |
| } |
| } |
| return Status.OK_STATUS; |
| } |
| |
| @Override |
| public boolean belongsTo(Object family) { |
| return super.belongsTo(family) || MARKER_TYPE.equals(family); |
| } |
| }; |
| workspaceJob.setRule(project); |
| workspaceJob.setUser(false); |
| workspaceJob.setSystem(true); |
| workspaceJob.setPriority(Job.DECORATE); |
| workspaceJob.schedule(); |
| } |
| } catch (CoreException e) { |
| ResourcesPlugin.getPlugin().getLog().log(new Status(IStatus.ERROR, ResourcesPlugin.PI_RESOURCES, e.getMessage(), e)); |
| } |
| } |
| } |
| |
| protected void updateRange(IMarker marker, String natureId, IFile file) { |
| if (!file.isAccessible()) { |
| return; |
| } |
| Pattern pattern = Pattern.compile(".*<" + IModelObjectConstants.NATURE + ">\\s*(" + natureId.replace(".", "\\.") + ")\\s*</" + IModelObjectConstants.NATURE + ">.*", //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$ |
| Pattern.DOTALL); |
| try (InputStream input = file.getContents(); ByteArrayOutputStream output = new ByteArrayOutputStream();) { |
| FileUtil.transferStreams(input, output, file.getLocation().toString(), new NullProgressMonitor()); |
| String content = output.toString(); |
| Matcher matcher = pattern.matcher(content); |
| if (matcher.matches() && matcher.groupCount() > 0) { |
| marker.setAttribute(IMarker.CHAR_START, matcher.start(1)); |
| marker.setAttribute(IMarker.CHAR_END, matcher.end(1)); |
| } |
| } catch (IOException e) { |
| ResourcesPlugin.getPlugin().getLog().log(new Status(IStatus.ERROR, ResourcesPlugin.PI_RESOURCES, e.getMessage(), e)); |
| } catch (CoreException e) { |
| ResourcesPlugin.getPlugin().getLog().log(new Status(IStatus.ERROR, ResourcesPlugin.PI_RESOURCES, e.getMessage(), e)); |
| } |
| } |
| |
| protected Collection<IMarker> getRelatedMarkers(IContainer rootOrProject) { |
| switch (rootOrProject.getType()) { |
| case IResource.ROOT : |
| return getRelatedRootMarkers((IWorkspaceRoot) rootOrProject); |
| case IResource.PROJECT : |
| return getRelatedProjectMarkers((IProject) rootOrProject); |
| } |
| return Collections.emptyList(); |
| } |
| |
| protected Collection<IMarker> getRelatedRootMarkers(IWorkspaceRoot root) { |
| if (!root.isAccessible()) { |
| return Collections.emptyList(); |
| } |
| Set<IMarker> res = new HashSet<>(); |
| for (IProject project : root.getProjects()) { |
| res.addAll(getRelatedProjectMarkers(project)); |
| } |
| return res; |
| } |
| |
| protected Collection<IMarker> getRelatedProjectMarkers(IProject project) { |
| if (!project.isAccessible()) { |
| return Collections.emptyList(); |
| } |
| try { |
| return Arrays.asList(project.findMarkers(MARKER_TYPE, true, IResource.DEPTH_ONE)); |
| } catch (CoreException e) { |
| ResourcesPlugin.getPlugin().getLog().log(new Status(IStatus.ERROR, ResourcesPlugin.PI_RESOURCES, e.getMessage(), e)); |
| return Collections.emptyList(); |
| } |
| } |
| |
| } |