after many days of search and many unsuccessful tries, I hope that the community knows a way to achieve my task:
I want to use grails as a kind of a proxy to my solr backend. By this, I want to ensure that only authorized requests are handled by solr. Grails checks the provided collection and the requested action and validated the request with predefined user based rules. Therefore, I extended my grails URL mapping to
"/documents/$collection/$query" {
controller = "documents"
action = action = [GET: "proxy_get", POST: "proxy_post"]
}
The proxy_get method works fine even when the client is using solrJ. All I have to to is to forward the URL request to solr and to reply with the solr response.
However, in the proxy_post method, I need to get the raw body data of the request to forward it to solr. SolrJ is using javabin for that and I was not able so far to get the raw binary request. The most promising approach was this:
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(solrUrl);
InputStream requestStream = request.getInputStream();
ContentType contentType = ContentType.create(request.getContentType());
httpPost.setEntity(new ByteArrayEntity(IOUtils.toByteArray(requestStream), contentType));
httpPost.setHeader("Content-Type", request.getContentType())
HttpResponse solrResponse = httpClient.execute(httpPost);
However, the transferred content is empty in case of javabin (e.g. when I add a document using solrJ).
So my question is, whether there is any possibility to get to the raw binary post content so that I can forward the request to solr.
Mathias