/**
* Deletes a set of files from the file system, and also their parent folders if those become
* empty during this process.
*
* @param nameSet set of file paths
* @param monitor progress monitor
* @throws CoreException if an error occurs
*/
private void deleteFiles(final Set<IPath> nameSet, IProgressMonitor monitor)
throws CoreException {
if (nameSet == null || nameSet.isEmpty()) {
return;
}
Set<IContainer> subFolders = new HashSet<IContainer>();
for (IPath filePath : nameSet) {
// Generate new path
IFile currentFile = project.getFile(filePath);
if (currentFile.exists()) {
// Retrieve parent folder and store for deletion
IContainer folder = currentFile.getParent();
subFolders.add(folder);
currentFile.delete(true, monitor);
}
monitor.worked(1);
}
// Delete parent folders, if they are empty
for (IContainer folder : subFolders) {
if (folder.exists() && folder.members().length == 0) {
folder.delete(true, monitor);
}
monitor.worked(1);
}
}
protected void deleteEmptyParent(IProgressMonitor monitor, IContainer container)
throws CoreException {
final IContainer parent = container.getParent();
if (container.members().length == 0) {
container.delete(true, monitor);
deleteEmptyParent(monitor, parent);
}
}
private void removeGlobalEiq(IProject project) throws CoreException {
final IResource globalEiqFile = project.findMember(MigratorConstants.GLOBAL_EIQ_PATH);
if (globalEiqFile != null) {
final IProgressMonitor monitor = new NullProgressMonitor();
final IContainer parent = globalEiqFile.getParent();
globalEiqFile.delete(true, monitor);
if (parent.members().length == 0) {
parent.delete(true, monitor);
}
}
}
private void delete(
IResource resource,
OutputConfiguration config,
EclipseResourceFileSystemAccess2 access,
IProgressMonitor monitor)
throws CoreException {
if (monitor.isCanceled()) {
throw new OperationCanceledException();
}
if (resource instanceof IContainer) {
IContainer container = (IContainer) resource;
for (IResource child : container.members()) {
delete(child, config, access, monitor);
}
container.delete(IResource.KEEP_HISTORY, monitor);
} else if (resource instanceof IFile) {
IFile file = (IFile) resource;
access.deleteFile(file, config.getName(), monitor);
} else {
resource.delete(IResource.KEEP_HISTORY, monitor);
}
}