* @param groupName
* the name of the group being processed.
* @return a processor used to detect changes in imported resources.
*/
private ResourcePreProcessor createCssImportProcessor(final AtomicBoolean changeDetected, final String groupName) {
final ResourcePreProcessor cssImportProcessor = new AbstractCssImportPreProcessor() {
@Override
protected void onImportDetected(final String importedUri) {
LOG.debug("Found @import {}", importedUri);
final boolean isImportChanged = isChanged(Resource.create(importedUri, ResourceType.CSS), groupName);
LOG.debug("\tisImportChanged={}", isImportChanged);