Examples with PageCollator org.alfresco.repo.virtual.page.PageCollator used on opensource projects

Example 1 with PageCollator

use of org.alfresco.repo.virtual.page.PageCollator in project alfresco-repository by Alfresco.

the class VirtualStoreImpl method list.

@Override
public PagingResults<Reference> list(final Reference ref, boolean actual, boolean virtual, final boolean files, final boolean folders, final String pattern, final Set<QName> searchTypeQNames, final Set<QName> ignoreTypeQNames, final Set<QName> ignoreAspectQNames, final List<Pair<QName, Boolean>> sortProps, final PagingRequest pagingRequest) throws VirtualizationException {
    VirtualFolderDefinition structure = resolveVirtualFolderDefinition(ref);
    List<Reference> virtualRefs = null;
    // constraints should handle folder & file filtering
    if (virtual && folders) {
        virtualRefs = createChildReferences(ref, structure);
    } else {
        virtualRefs = Collections.emptyList();
    }
    if (actual) {
        final VirtualQuery query = structure.getQuery();
        if (query != null) {
            // we have a query we must collate results
            PagingResultsSource<Reference> querySourc = new PagingResultsSource<Reference>() {

                @Override
                public PagingResults<Reference> retrieve(PagingRequest pr) throws PageCollationException {
                    try {
                        return query.perform(environment, files, folders, pattern, searchTypeQNames, ignoreTypeQNames, ignoreAspectQNames, sortProps, pr, ref);
                    } catch (VirtualizationException e) {
                        throw new PageCollationException(e);
                    }
                }
            };
            PageCollator<Reference> collator = new PageCollator<>();
            try {
                return collator.collate(virtualRefs, querySourc, pagingRequest, new ReferenceComparator(this, sortProps));
            } catch (PageCollationException e) {
                throw new VirtualizationException(e);
            }
        }
    }
    return new ListBackedPagingResults<>(virtualRefs);
}