public ScanResult scan()

in src/main/java/org/apache/sling/installer/provider/jcr/impl/WatchedFolder.java [116:155]

• 30 lines of code
• 8 McCabe index (conditional complexity)

    public ScanResult scan() throws RepositoryException {
        logger.debug("Scanning {}", path);

        Node folder = null;
        if (session.itemExists(path)) {
        	final Item i = session.getItem(path);
        	if(i.isNode()) {
        		folder = (Node)i;
        	}
        }

        // Return an InstallableResource for all child nodes for which we have a NodeConverter
        final ScanResult result = new ScanResult();
        final Set<String> resourcesSeen = new HashSet<String>();
        if (folder != null) {
            scanNode(folder, result, resourcesSeen);
        }

        // Resources that existed but are not in resourcesSeen need to be
        // unregistered from OsgiInstaller
        for(final String url : existingResourceUrls) {
        	if(!resourcesSeen.contains(url)) {
                result.toRemove.add(url);
        	}
        }
        for(final String u : result.toRemove) {
        	existingResourceUrls.remove(u);
        	digests.remove(u);
        }

        // Update saved digests of the resources that we're returning
        for(final InstallableResource r : result.toAdd) {
            existingResourceUrls.add(r.getId());
            digests.put(r.getId(), r.getDigest());
        }

        needsScan = false;

        return result;
    }