private void remoteQuery(String coreUrl, HttpServletResponse resp) throws IOException {
HttpRequestBase method = null;
HttpEntity httpEntity = null;
try {
String urlstr = coreUrl + queryParams.toQueryString();
boolean isPostOrPutRequest = "POST".equals(req.getMethod()) || "PUT".equals(req.getMethod());
if ("GET".equals(req.getMethod())) {
method = new HttpGet(urlstr);
} else if ("HEAD".equals(req.getMethod())) {
method = new HttpHead(urlstr);
} else if (isPostOrPutRequest) {
HttpEntityEnclosingRequestBase entityRequest =
"POST".equals(req.getMethod()) ? new HttpPost(urlstr) : new HttpPut(urlstr);
InputStream in =
new CloseShieldInputStream(req.getInputStream()); // Prevent close of container streams
HttpEntity entity = new InputStreamEntity(in, req.getContentLength());
entityRequest.setEntity(entity);
method = entityRequest;
} else if ("DELETE".equals(req.getMethod())) {
method = new HttpDelete(urlstr);
} else {
throw new SolrException(
SolrException.ErrorCode.SERVER_ERROR, "Unexpected method type: " + req.getMethod());
}
for (Enumeration<String> e = req.getHeaderNames(); e.hasMoreElements(); ) {
String headerName = e.nextElement();
if (!"host".equalsIgnoreCase(headerName)
&& !"authorization".equalsIgnoreCase(headerName)
&& !"accept".equalsIgnoreCase(headerName)) {
method.addHeader(headerName, req.getHeader(headerName));
}
}
// These headers not supported for HttpEntityEnclosingRequests
if (method instanceof HttpEntityEnclosingRequest) {
method.removeHeaders(TRANSFER_ENCODING_HEADER);
method.removeHeaders(CONTENT_LENGTH_HEADER);
}
final HttpResponse response =
solrDispatchFilter.httpClient.execute(
method, HttpClientUtil.createNewHttpClientRequestContext());
int httpStatus = response.getStatusLine().getStatusCode();
httpEntity = response.getEntity();
resp.setStatus(httpStatus);
for (HeaderIterator responseHeaders = response.headerIterator();
responseHeaders.hasNext(); ) {
Header header = responseHeaders.nextHeader();
// We pull out these two headers below because they can cause chunked
// encoding issues with Tomcat
if (header != null
&& !header.getName().equalsIgnoreCase(TRANSFER_ENCODING_HEADER)
&& !header.getName().equalsIgnoreCase(CONNECTION_HEADER)) {
resp.addHeader(header.getName(), header.getValue());
}
}
if (httpEntity != null) {
if (httpEntity.getContentEncoding() != null)
resp.setCharacterEncoding(httpEntity.getContentEncoding().getValue());
if (httpEntity.getContentType() != null)
resp.setContentType(httpEntity.getContentType().getValue());
InputStream is = httpEntity.getContent();
OutputStream os = resp.getOutputStream();
IOUtils.copyLarge(is, os);
}
} catch (IOException e) {
sendError(
new SolrException(
SolrException.ErrorCode.SERVER_ERROR,
"Error trying to proxy request for url: " + coreUrl,
e));
} finally {
Utils.consumeFully(httpEntity);
}
}
