/**
* @param exchange
* @param context
* @throws Exception
*/
@Override
public void handleRequest(HttpServerExchange exchange, RequestContext context) throws Exception {
DBObject content = context.getContent();
// cannot PATCH with no data
if (content == null) {
ResponseHelper.endExchangeWithMessage(
exchange, HttpStatus.SC_NOT_ACCEPTABLE, "data is empty");
return;
}
// cannot PATCH an array
if (content instanceof BasicDBList) {
ResponseHelper.endExchangeWithMessage(
exchange, HttpStatus.SC_NOT_ACCEPTABLE, "data cannot be an array");
return;
}
Object id = context.getDocumentId();
if (content.get("_id") == null) {
content.put("_id", id);
} else if (!content.get("_id").equals(id)) {
ResponseHelper.endExchangeWithMessage(
exchange,
HttpStatus.SC_NOT_ACCEPTABLE,
"_id in json data cannot be different than id in URL");
return;
}
ObjectId requestEtag = RequestHelper.getWriteEtag(exchange);
OperationResult result =
documentDAO.upsertDocument(
context.getDBName(),
context.getCollectionName(),
context.getDocumentId(),
content,
requestEtag,
true);
if (result.getEtag() != null) {
exchange.getResponseHeaders().put(Headers.ETAG, result.getEtag().toString());
} else {
ResponseHelper.endExchangeWithMessage(
exchange,
HttpStatus.SC_CONFLICT,
"The document's ETag must be provided using the '" + Headers.IF_MATCH + "' header");
return;
}
// send the warnings if any (and in case no_content change the return code to ok
if (context.getWarnings() != null && !context.getWarnings().isEmpty()) {
sendWarnings(result.getHttpCode(), exchange, context);
} else {
exchange.setResponseCode(result.getHttpCode());
}
exchange.endExchange();
}
