private static void setPagination(
HttpServletRequest request,
DiscoverQuery queryArgs,
DiscoveryConfiguration discoveryConfiguration) {
int start = UIUtil.getIntParameter(request, "start");
// can't start earlier than 0 in the results!
if (start < 0) {
start = 0;
}
String sortBy = request.getParameter("sort_by");
String sortOrder = request.getParameter("order");
DiscoverySortConfiguration searchSortConfiguration =
discoveryConfiguration.getSearchSortConfiguration();
if (sortBy == null) {
// Attempt to find the default one, if none found we use SCORE
sortBy = "score";
if (searchSortConfiguration != null) {
for (DiscoverySortFieldConfiguration sortFieldConfiguration :
searchSortConfiguration.getSortFields()) {
if (sortFieldConfiguration.equals(searchSortConfiguration.getDefaultSort())) {
sortBy =
SearchUtils.getSearchService()
.toSortFieldIndex(
sortFieldConfiguration.getMetadataField(),
sortFieldConfiguration.getType());
}
}
}
}
if (sortOrder == null && searchSortConfiguration != null) {
sortOrder = searchSortConfiguration.getDefaultSortOrder().toString();
}
if (sortBy != null) {
if ("asc".equalsIgnoreCase(sortOrder)) {
queryArgs.setSortField(sortBy, SORT_ORDER.asc);
} else {
queryArgs.setSortField(sortBy, SORT_ORDER.desc);
}
}
int rpp = UIUtil.getIntParameter(request, "rpp");
// Override the page setting if exporting metadata
if ("submit_export_metadata".equals(UIUtil.getSubmitButton(request, "submit"))) {
queryArgs.setStart(0);
queryArgs.setMaxResults(Integer.MAX_VALUE);
// search only for items other objects are not exported
queryArgs.addFilterQueries("search.resourcetype:2");
} else {
// String groupBy = request.getParameter("group_by");
//
// // Enable groupBy collapsing if designated
// if (groupBy != null && !groupBy.equalsIgnoreCase("none")) {
// /** Construct a Collapse Field Query */
// queryArgs.addProperty("collapse.field", groupBy);
// queryArgs.addProperty("collapse.threshold", "1");
// queryArgs.addProperty("collapse.includeCollapsedDocs.fl",
// "handle");
// queryArgs.addProperty("collapse.facet", "before");
//
// //queryArgs.a type:Article^2
//
// // TODO: This is a hack to get Publications (Articles) to always
// be at the top of Groups.
// // TODO: I think the can be more transparently done in the solr
// solrconfig.xml with DISMAX and boosting
// /** sort in groups to get publications to top */
// queryArgs.setSortField("dc.type", DiscoverQuery.SORT_ORDER.asc);
//
// }
if (rpp > 0) {
queryArgs.setMaxResults(rpp);
} else {
queryArgs.setMaxResults(discoveryConfiguration.getDefaultRpp());
}
queryArgs.setStart(start);
}
}
