Examples with SearchScope com.unboundid.ldap.sdk.SearchScope used on opensource projects

Example 1 with SearchScope

use of com.unboundid.ldap.sdk.SearchScope in project zm-mailbox by Zimbra.

the class UBIDLdapContext method searchPaged.

@Override
public void searchPaged(SearchLdapOptions searchOptions) throws ServiceException {
    int maxResults = searchOptions.getMaxResults();
    String base = searchOptions.getSearchBase();
    ZLdapFilter filter = searchOptions.getFilter();
    Set<String> binaryAttrs = searchOptions.getBinaryAttrs();
    SearchScope searchScope = ((UBIDSearchScope) searchOptions.getSearchScope()).getNative();
    SearchLdapOptions.SearchLdapVisitor visitor = searchOptions.getVisitor();
    SearchGalResult searchGalResult = searchOptions.getSearchGalResult();
    int pageSize = searchOptions.getResultPageSize();
    int offset = 0;
    boolean pagination = false;
    int limit = 0;
    String prevLastReturnedItemCreateDate = null;
    if (searchGalResult != null) {
        offset = searchGalResult.getLdapMatchCount();
        prevLastReturnedItemCreateDate = searchGalResult.getLdapTimeStamp();
        pagination = searchGalResult.getHadMore();
        limit = searchGalResult.getLimit();
    }
    if (GalOp.sync == searchOptions.getGalOp() && !pagination) {
        limit = 0;
    }
    if (limit == 0) {
        limit = Integer.MAX_VALUE;
    }
    int pageCount = 0;
    int pageOffset = 0;
    int currentPage = 0;
    int index = 0;
    if (offset > 0) {
        pageCount = offset / pageSize;
        pageOffset = offset % pageSize;
    }
    String newToken = "";
    // TODO: this is the legacy behavior, we can make it a param
    boolean wantPartialResult = true;
    try {
        SearchRequest searchRequest = new SearchRequest(base, searchScope, derefAliasPolicy, maxResults, 0, false, ((UBIDLdapFilter) filter).getNative());
        searchRequest.setAttributes(searchOptions.getReturnAttrs());
        // Set the page size and initialize the cookie that we pass back in subsequent pages
        ASN1OctetString cookie = null;
        int count = offset;
        do {
            List<Control> controls = Lists.newArrayListWithCapacity(2);
            if (searchOptions.isUseControl()) {
                controls.add(new SimplePagedResultsControl(pageSize, cookie));
            }
            if (searchOptions.isManageDSAit()) {
                controls.add(new ManageDsaITRequestControl(false));
            }
            searchRequest.setControls(controls.toArray(new Control[0]));
            SearchResult result = null;
            try {
                result = UBIDLdapOperation.SEARCH.execute(this, searchRequest, filter);
            } catch (LDAPException e) {
                if (ResultCode.SIZE_LIMIT_EXCEEDED == e.getResultCode() && wantPartialResult) {
                    // if callsite wants partial result, return them
                    LDAPResult ldapResult = e.toLDAPResult();
                    if (ldapResult instanceof SearchResult) {
                        SearchResult searchResult = (SearchResult) ldapResult;
                        for (SearchResultEntry entry : searchResult.getSearchEntries()) {
                            String dn = entry.getDN();
                            UBIDAttributes ubidAttrs = new UBIDAttributes(entry);
                            if (visitor.wantAttrMapOnVisit()) {
                                visitor.visit(dn, ubidAttrs.getAttrs(binaryAttrs), ubidAttrs);
                            } else {
                                visitor.visit(dn, ubidAttrs);
                            }
                            newToken = ubidAttrs.getAttrString("whenCreated") != null ? ubidAttrs.getAttrString("whenCreated") : ubidAttrs.getAttrString("createTimeStamp");
                        }
                        if (searchGalResult != null) {
                            searchGalResult.setLdapTimeStamp(newToken);
                            searchGalResult.setLdapMatchCount(1);
                            searchGalResult.setHadMore(true);
                        }
                    }
                }
                // always re-throw
                throw e;
            }
            List<SearchResultEntry> entries = result.getSearchEntries();
            boolean hasMore = false;
            int resultSize = entries.size();
            if (resultSize > (limit + pageOffset)) {
                hasMore = true;
            }
            String leCreateDate = null;
            if (currentPage >= pageCount) {
                leCreateDate = getLastEntryCreationDate(limit + pageOffset, entries);
                if (prevLastReturnedItemCreateDate != null && !prevLastReturnedItemCreateDate.equals(leCreateDate)) {
                    count = 0;
                }
                for (index = pageOffset; index < entries.size() && limit > 0; index++) {
                    SearchResultEntry entry = entries.get(index);
                    String dn = entry.getDN();
                    UBIDAttributes ubidAttrs = new UBIDAttributes(entry);
                    if (visitor.wantAttrMapOnVisit()) {
                        visitor.visit(dn, ubidAttrs.getAttrs(binaryAttrs), ubidAttrs);
                    } else {
                        visitor.visit(dn, ubidAttrs);
                    }
                    limit--;
                    newToken = ubidAttrs.getAttrString("whenCreated") != null ? ubidAttrs.getAttrString("whenCreated") : ubidAttrs.getAttrString("createTimeStamp");
                    if (newToken != null && newToken.equals(leCreateDate)) {
                        count++;
                    }
                }
                prevLastReturnedItemCreateDate = leCreateDate;
                pageOffset = 0;
            }
            cookie = null;
            for (Control c : result.getResponseControls()) {
                if (c instanceof SimplePagedResultsControl) {
                    cookie = ((SimplePagedResultsControl) c).getCookie();
                }
            }
            if (searchGalResult != null && (GalOp.sync == searchOptions.getGalOp())) {
                if (limit == 0 && (((cookie != null) && (cookie.getValueLength() > 0)) || hasMore)) {
                    searchGalResult.setHadMore(true);
                    searchGalResult.setLdapTimeStamp(newToken);
                    searchGalResult.setLdapMatchCount(count);
                } else if (((cookie != null) && (cookie.getValueLength() == 0))) {
                    searchGalResult.setHadMore(false);
                    searchGalResult.setLdapMatchCount(0);
                }
            }
            currentPage++;
        } while ((cookie != null) && (cookie.getValueLength() > 0) && limit > 0);
    } catch (SearchLdapOptions.StopIteratingException e) {
    // break out of the loop and close the ne
    } catch (LDAPException e) {
        throw mapToLdapException("unable to search ldap", e);
    }
}