protected void mergeEncodingPreferences(IProject project) {
Preferences projectRegularPrefs = null;
Preferences projectDerivedPrefs = getPreferences(project, false, true, true);
if (projectDerivedPrefs == null) return;
try {
boolean prefsChanged = false;
String[] affectedResources;
affectedResources = projectDerivedPrefs.keys();
for (int i = 0; i < affectedResources.length; i++) {
String path = affectedResources[i];
String value = projectDerivedPrefs.get(path, null);
projectDerivedPrefs.remove(path);
// lazy creation of non-derived preferences
if (projectRegularPrefs == null)
projectRegularPrefs = getPreferences(project, true, false, false);
projectRegularPrefs.put(path, value);
prefsChanged = true;
}
if (prefsChanged) {
Map<IProject, Boolean> projectsToSave = new HashMap<>();
// this is internal change so do not notify charset delta job
projectsToSave.put(project, Boolean.TRUE);
job.addChanges(projectsToSave);
}
} catch (BackingStoreException e) {
// problems with the project scope... we will miss the changes (but will log)
String message = Messages.resources_readingEncoding;
Policy.log(
new ResourceStatus(
IResourceStatus.FAILED_GETTING_CHARSET, project.getFullPath(), message, e));
}
}
private boolean isDerivedEncodingStoredSeparately(IProject project) {
// be careful looking up for our node so not to create any nodes as side effect
Preferences node = Platform.getPreferencesService().getRootNode().node(ProjectScope.SCOPE);
try {
// TODO once bug 90500 is fixed, should be as simple as this:
// String path = project.getName() + IPath.SEPARATOR + ResourcesPlugin.PI_RESOURCES;
// return node.nodeExists(path) ?
// node.node(path).getBoolean(ResourcesPlugin.PREF_SEPARATE_DERIVED_ENCODINGS, false) : false;
// for now, take the long way
if (!node.nodeExists(project.getName()))
return ResourcesPlugin.DEFAULT_PREF_SEPARATE_DERIVED_ENCODINGS;
node = node.node(project.getName());
if (!node.nodeExists(ResourcesPlugin.PI_RESOURCES))
return ResourcesPlugin.DEFAULT_PREF_SEPARATE_DERIVED_ENCODINGS;
node = node.node(ResourcesPlugin.PI_RESOURCES);
return node.getBoolean(
ResourcesPlugin.PREF_SEPARATE_DERIVED_ENCODINGS,
ResourcesPlugin.DEFAULT_PREF_SEPARATE_DERIVED_ENCODINGS);
} catch (BackingStoreException e) {
// nodeExists failed
String message = Messages.resources_readingEncoding;
Policy.log(
new ResourceStatus(
IResourceStatus.FAILED_GETTING_CHARSET, project.getFullPath(), message, e));
return ResourcesPlugin.DEFAULT_PREF_SEPARATE_DERIVED_ENCODINGS;
}
}
@Override
protected IStatus run(IProgressMonitor monitor) {
MultiStatus result =
new MultiStatus(
ResourcesPlugin.PI_RESOURCES,
IResourceStatus.FAILED_SETTING_CHARSET,
Messages.resources_updatingEncoding,
null);
monitor = Policy.monitorFor(monitor);
try {
monitor.beginTask(Messages.resources_charsetUpdating, Policy.totalWork);
final ISchedulingRule rule = workspace.getRuleFactory().modifyRule(workspace.getRoot());
try {
workspace.prepareOperation(rule, monitor);
workspace.beginOperation(true);
Map.Entry<IProject, Boolean> next;
while ((next = getNextChange()) != null) {
// just exit if the system is shutting down or has been shut down
// it is too late to change the workspace at this point anyway
if (systemBundle.getState() != Bundle.ACTIVE) return Status.OK_STATUS;
IProject project = next.getKey();
try {
if (project.isAccessible()) {
boolean shouldDisableCharsetDeltaJob = next.getValue().booleanValue();
// flush preferences for non-derived resources
flushPreferences(
getPreferences(project, false, false, true), shouldDisableCharsetDeltaJob);
// flush preferences for derived resources
flushPreferences(
getPreferences(project, false, true, true), shouldDisableCharsetDeltaJob);
}
} catch (BackingStoreException e) {
// we got an error saving
String detailMessage = Messages.resources_savingEncoding;
result.add(
new ResourceStatus(
IResourceStatus.FAILED_SETTING_CHARSET,
project.getFullPath(),
detailMessage,
e));
}
}
monitor.worked(Policy.opWork);
} catch (OperationCanceledException e) {
workspace.getWorkManager().operationCanceled();
throw e;
} finally {
workspace.endOperation(rule, true, Policy.subMonitorFor(monitor, Policy.endOpWork));
}
} catch (CoreException ce) {
return ce.getStatus();
} finally {
monitor.done();
}
return result;
}
public void setCharsetFor(IPath resourcePath, String newCharset) throws CoreException {
// for the workspace root we just set a preference in the instance scope
if (resourcePath.segmentCount() == 0) {
IEclipsePreferences resourcesPreferences =
InstanceScope.INSTANCE.getNode(ResourcesPlugin.PI_RESOURCES);
if (newCharset != null) resourcesPreferences.put(ResourcesPlugin.PREF_ENCODING, newCharset);
else resourcesPreferences.remove(ResourcesPlugin.PREF_ENCODING);
try {
resourcesPreferences.flush();
} catch (BackingStoreException e) {
IProject project = workspace.getRoot().getProject(resourcePath.segment(0));
String message = Messages.resources_savingEncoding;
throw new ResourceException(
IResourceStatus.FAILED_SETTING_CHARSET, project.getFullPath(), message, e);
}
return;
}
// for all other cases, we set a property in the corresponding project
IResource resource = workspace.getRoot().findMember(resourcePath);
if (resource != null) {
try {
// disable the listener so we don't react to changes made by ourselves
Preferences encodingSettings =
getPreferences(
resource.getProject(), true, resource.isDerived(IResource.CHECK_ANCESTORS));
if (newCharset == null || newCharset.trim().length() == 0)
encodingSettings.remove(getKeyFor(resourcePath));
else encodingSettings.put(getKeyFor(resourcePath), newCharset);
flushPreferences(encodingSettings, true);
} catch (BackingStoreException e) {
IProject project = workspace.getRoot().getProject(resourcePath.segment(0));
String message = Messages.resources_savingEncoding;
throw new ResourceException(
IResourceStatus.FAILED_SETTING_CHARSET, project.getFullPath(), message, e);
}
}
}
Preferences getPreferences(
IProject project,
boolean create,
boolean isDerived,
boolean isDerivedEncodingStoredSeparately) {
boolean localIsDerived = isDerivedEncodingStoredSeparately ? isDerived : false;
String qualifier =
localIsDerived
? ProjectPreferences.PREFS_DERIVED_QUALIFIER
: ProjectPreferences.PREFS_REGULAR_QUALIFIER;
if (create)
// create all nodes down to the one we are interested in
return new ProjectScope(project).getNode(qualifier).node(ResourcesPlugin.PREF_ENCODING);
// be careful looking up for our node so not to create any nodes as side effect
Preferences node = Platform.getPreferencesService().getRootNode().node(ProjectScope.SCOPE);
try {
// TODO once bug 90500 is fixed, should be as simple as this:
// String path = project.getName() + IPath.SEPARATOR + ResourcesPlugin.PI_RESOURCES +
// IPath.SEPARATOR + ENCODING_PREF_NODE;
// return node.nodeExists(path) ? node.node(path) : null;
// for now, take the long way
if (!node.nodeExists(project.getName())) return null;
node = node.node(project.getName());
if (!node.nodeExists(qualifier)) return null;
node = node.node(qualifier);
if (!node.nodeExists(ResourcesPlugin.PREF_ENCODING)) return null;
return node.node(ResourcesPlugin.PREF_ENCODING);
} catch (BackingStoreException e) {
// nodeExists failed
String message = Messages.resources_readingEncoding;
Policy.log(
new ResourceStatus(
IResourceStatus.FAILED_GETTING_CHARSET, project.getFullPath(), message, e));
}
return null;
}
private void processEntryChanges(
IResourceDelta projectDelta, Map<IProject, Boolean> projectsToSave) {
// check each resource with user-set encoding to see if it has
// been moved/deleted or if derived state has been changed
IProject currentProject = (IProject) projectDelta.getResource();
Preferences projectRegularPrefs = getPreferences(currentProject, false, false, true);
Preferences projectDerivedPrefs = getPreferences(currentProject, false, true, true);
Map<Boolean, String[]> affectedResourcesMap = new HashMap<>();
try {
// no regular preferences for this project
if (projectRegularPrefs == null) affectedResourcesMap.put(Boolean.FALSE, new String[0]);
else affectedResourcesMap.put(Boolean.FALSE, projectRegularPrefs.keys());
// no derived preferences for this project
if (projectDerivedPrefs == null) affectedResourcesMap.put(Boolean.TRUE, new String[0]);
else affectedResourcesMap.put(Boolean.TRUE, projectDerivedPrefs.keys());
} catch (BackingStoreException e) {
// problems with the project scope... we will miss the changes (but will log)
String message = Messages.resources_readingEncoding;
Policy.log(
new ResourceStatus(
IResourceStatus.FAILED_GETTING_CHARSET, currentProject.getFullPath(), message, e));
return;
}
for (Iterator<Boolean> it = affectedResourcesMap.keySet().iterator(); it.hasNext(); ) {
Boolean isDerived = it.next();
String[] affectedResources = affectedResourcesMap.get(isDerived);
Preferences projectPrefs =
isDerived.booleanValue() ? projectDerivedPrefs : projectRegularPrefs;
for (int i = 0; i < affectedResources.length; i++) {
IResourceDelta memberDelta = projectDelta.findMember(new Path(affectedResources[i]));
// no changes for the given resource
if (memberDelta == null) continue;
if (memberDelta.getKind() == IResourceDelta.REMOVED) {
boolean shouldDisableCharsetDeltaJobForCurrentProject = false;
// remove the setting for the original location - save its value though
String currentValue = projectPrefs.get(affectedResources[i], null);
projectPrefs.remove(affectedResources[i]);
if ((memberDelta.getFlags() & IResourceDelta.MOVED_TO) != 0) {
IPath movedToPath = memberDelta.getMovedToPath();
IResource resource = workspace.getRoot().findMember(movedToPath);
if (resource != null) {
Preferences encodingSettings =
getPreferences(
resource.getProject(), true, resource.isDerived(IResource.CHECK_ANCESTORS));
if (currentValue == null || currentValue.trim().length() == 0)
encodingSettings.remove(getKeyFor(movedToPath));
else encodingSettings.put(getKeyFor(movedToPath), currentValue);
IProject targetProject = workspace.getRoot().getProject(movedToPath.segment(0));
if (targetProject.equals(currentProject))
// if the file was moved inside the same project disable charset listener
shouldDisableCharsetDeltaJobForCurrentProject = true;
else projectsToSave.put(targetProject, Boolean.FALSE);
}
}
projectsToSave.put(
currentProject, Boolean.valueOf(shouldDisableCharsetDeltaJobForCurrentProject));
}
}
if (moveSettingsIfDerivedChanged(
projectDelta, currentProject, projectPrefs, affectedResources)) {
// if settings were moved between preferences files disable charset listener so we don't
// react to changes made by ourselves
projectsToSave.put(currentProject, Boolean.TRUE);
}
}
}