public Iterator getChildren()

in src/main/java/org/apache/sling/fsprovider/internal/mapper/FileResourceMapper.java [75:131]
43 lines of code
8 McCabe index (conditional complexity)

    public Iterator<Resource> getChildren(final ResourceResolver resolver, final Resource parent) {
        final String parentPath = parent.getPath();
        File parentFile = parent.adaptTo(File.class);

        // not a FsResource, try to create one from the resource
        if (parentFile == null) {
            // if the parent path is at or below the provider root, get
            // the respective file
            parentFile = getFile(parentPath);

            // if the parent path is actually the parent of the provider
            // root, return a single element iterator just containing the
            // provider file, unless the provider file is a directory and
            // a repository item with the same path actually exists
            if (parentFile == null) {

                if (!StringUtils.startsWith(parentPath, providerRoot)) {
                    String parentPathPrefix = parentPath.concat("/");
                    if (providerRoot.startsWith(parentPathPrefix)) {
                        String relPath = providerRoot.substring(parentPathPrefix.length());
                        if (relPath.indexOf('/') < 0) {
                            Resource res = new FileResource(resolver, providerRoot, providerFile, contentFileExtensions, contentFileCache, fileStatCache);
                            return IteratorUtils.singletonIterator(res);
                        }
                    }
                }

                // no children here
                return null;
            }
        }

        File[] files = parentFile.listFiles();
        if (files == null) {
            return null;
        }

        Arrays.sort(files, FileNameComparator.INSTANCE);
        Iterator<File> children = IteratorUtils.filteredIterator(IteratorUtils.arrayIterator(files), new Predicate() {
            @Override
            public boolean evaluate(Object object) {
                File file = (File)object;
                return !contentFileExtensions.matchesSuffix(file);
            }
        });
        if (!children.hasNext()) {
            return null;
        }
        return IteratorUtils.transformedIterator(children, new Transformer() {
            @Override
            public Object transform(Object input) {
                File file = (File)input;
                String path = parentPath + "/" + Escape.fileToResourceName(file.getName());
                return new FileResource(resolver, path, file, contentFileExtensions, contentFileCache, fileStatCache);
            }
        });
    }