/**
* Goes through all the resource-dependent preferences associated with currentProject & key and
* updates the preference keys if needed based on projectDelta
*
* @param currentProject current project of the preferences to be looked at
* @param key current key/subcategory of the preferences to be looked at
* @param projectDelta the changes to process the preference keys against
* @param projectsToSave the projects that need to be updated/saved
* @return true if currentProject's preferences were modified
*/
private boolean processPreferences(
IProject currentProject, String key, IResourceDelta projectDelta, Set projectsToSave) {
boolean resourceChanges = false;
// get the project-key preference node
Preferences projectPrefs = CSSContentProperties.getPreferences(currentProject, key, false);
if (projectPrefs == null)
// no preferences for this project-key, just bail
return false;
String[] affectedResources;
try {
affectedResources = projectPrefs.keys();
} catch (BackingStoreException e) {
// problems with the project scope... we gonna miss the
// changes (but will log)
Logger.log(
Logger.WARNING_DEBUG, "Problem retreiving JSP Fragment preferences", e); // $NON-NLS-1$
return false;
}
// go through each preference key (which is really a file name)
for (int i = 0; i < affectedResources.length; i++) {
// see if preference key/file name was file that was changed
IResourceDelta memberDelta = projectDelta.findMember(new Path(affectedResources[i]));
// no changes for the given resource
if (memberDelta == null) continue;
if (memberDelta.getKind() == IResourceDelta.REMOVED) {
resourceChanges = true;
// remove the setting for the original location
String currentValue = projectPrefs.get(affectedResources[i], null);
projectPrefs.remove(affectedResources[i]);
if ((memberDelta.getFlags() & IResourceDelta.MOVED_TO) != 0) {
// if moving, copy the setting for the new location
IProject targetProject =
ResourcesPlugin.getWorkspace()
.getRoot()
.getProject(memberDelta.getMovedToPath().segment(0));
Preferences targetPrefs = CSSContentProperties.getPreferences(targetProject, key, true);
targetPrefs.put(
CSSContentProperties.getKeyFor(memberDelta.getMovedToPath()), currentValue);
if (targetProject != currentProject) projectsToSave.add(targetProject);
}
}
}
return resourceChanges;
}
protected IStatus run(IProgressMonitor monitor) {
MultiStatus result =
new MultiStatus(
CSSContentProperties.CSSCORE_ID,
IResourceStatus.FAILED_SETTING_CHARSET,
CSSCoreMessages.CSSContentPropertiesManager_Updating,
null);
monitor = monitor == null ? new NullProgressMonitor() : monitor;
try {
monitor.beginTask(
CSSCoreMessages.CSSContentPropertiesManager_Updating, asyncChanges.size());
try {
IProject 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 (Platform.getBundle("org.eclipse.osgi").getState() != Bundle.ACTIVE) // $NON-NLS-1$
return Status.OK_STATUS;
try {
// save the preferences nodes
if (next.isAccessible()) {
// save css profile preferences
Preferences projectPrefs =
CSSContentProperties.getPreferences(
next, CSSContentProperties.CSS_PROFILE, false);
if (projectPrefs != null) projectPrefs.flush();
}
} catch (BackingStoreException e) {
// we got an error saving
String detailMessage =
NLS.bind(
CSSCoreMessages.CSSContentPropertiesManager_Problems_Updating,
next.getFullPath());
result.add(
new Status(
1 << (IResourceStatus.FAILED_SETTING_CHARSET % 100 / 33),
ResourcesPlugin.PI_RESOURCES,
IResourceStatus.FAILED_SETTING_CHARSET,
detailMessage,
e));
}
}
monitor.worked(1);
} catch (OperationCanceledException e) {
throw e;
}
} finally {
monitor.done();
}
return result;
}
