Add a custom parameter to Solr while using Spring Data Solr - spring

Question

Is it possible to add an additional parameter to a Solr query using Spring Data Solr that generates the following request?
"params": {
"indent": "true",
"q": "*.*",
"_": "1430295713114",
"wt": "java",
"AuthenticatedUserName": "user#domain.com"
}
I want to add a parameter needed by Apache Manifoldcf, AuthenticatedUserName and its value, alongside the other ones that are automatically populated by Spring Data Solr (q, wt).
Thank you,
V.

Answer 1

I managed to make it work by looking at the source code of the SolrTemplate class but I was wondering if there is a less intrusive solution.
public Page<Document> searchDocuments(DocumentSearchCriteria criteria, Pageable page) {
String[] words = criteria.getTitle().split(" ");
Criteria conditions = createSearchConditions(words);
SimpleQuery query = new SimpleQuery(conditions);
query.setPageRequest(page);
SolrQuery solrQuery = queryParsers.getForClass(query.getClass()).constructSolrQuery(query);
solrQuery.add(AUTHENTICATED_USER_NAME, criteria.getLoggedUsername());
try {
String queryString = this.queryParsers.getForClass(query.getClass()).getQueryString(query);
solrQuery.set(CommonParams.Q, queryString);
QueryResponse response = solrTemplate.getSolrServer().query(solrQuery);
List<Document> beans = convertQueryResponseToBeans(response, Document.class);
SolrDocumentList results = response.getResults();
return new SolrResultPage<>(beans, query.getPageRequest(), results.getNumFound(), results.getMaxScore());
} catch (SolrServerException e) {
log.error(e.getMessage(), e);
return new SolrResultPage<>(Collections.<Document>emptyList());
}
}
private <T> List<T> convertQueryResponseToBeans(QueryResponse response, Class<T> targetClass) {
return response != null ? convertSolrDocumentListToBeans(response.getResults(), targetClass) : Collections
.<T> emptyList();
}
public <T> List<T> convertSolrDocumentListToBeans(SolrDocumentList documents, Class<T> targetClass) {
if (documents == null) {
return Collections.emptyList();
}
return solrTemplate.getConverter().read(documents, targetClass);
}
private Criteria createSearchConditions(String[] words) {
return new Criteria("title").contains(words)
.or(new Criteria("description").contains(words))
.or(new Criteria("content").contains(words))
.or(new Criteria("resourcename").contains(words));
}