void doPatch(final HttpServletRequest req, final HttpServletResponse resp) {
try {
// Parse out the required API versions.
final AcceptAPIVersion acceptVersion = parseAcceptAPIVersion(req);
// Prepare response.
prepareResponse(req, resp);
// Validate request.
preprocessRequest(req);
if (req.getHeader(HEADER_IF_NONE_MATCH) != null) {
// FIXME: i18n
throw new PreconditionFailedException(
"Use of If-None-Match not supported for PATCH requests");
}
final Map<String, String[]> parameters = req.getParameterMap();
final PatchRequest request =
Requests.newPatchRequest(getResourceName(req)).setRevision(getIfMatch(req));
request.getPatchOperations().addAll(getJsonPatchContent(req));
for (final Map.Entry<String, String[]> p : parameters.entrySet()) {
final String name = p.getKey();
final String[] values = p.getValue();
if (HttpUtils.isMultiPartRequest(req.getContentType())) {
// Ignore - multipart content adds form parts to the parameter set
} else if (parseCommonParameter(name, values, request)) {
continue;
} else {
request.setAdditionalParameter(name, asSingleValue(name, values));
}
}
doRequest(req, resp, acceptVersion, request);
} catch (final Exception e) {
fail(req, resp, e);
}
}
