mirror of https://gitee.com/bigwinds/arangodb
140 lines
4.4 KiB
C++
140 lines
4.4 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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////////////////////////////////////////////////////////////////////////////////
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#include "RestQueryCacheHandler.h"
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#include "Aql/QueryCache.h"
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#include "Rest/HttpRequest.h"
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using namespace arangodb;
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using namespace arangodb::aql;
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using namespace arangodb::basics;
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using namespace arangodb::rest;
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RestQueryCacheHandler::RestQueryCacheHandler(GeneralRequest* request,
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GeneralResponse* response)
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: RestVocbaseBaseHandler(request, response) {}
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bool RestQueryCacheHandler::isDirect() const { return false; }
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RestStatus RestQueryCacheHandler::execute() {
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// extract the sub-request type
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auto const type = _request->requestType();
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switch (type) {
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case rest::RequestType::DELETE_REQ:
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clearCache();
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break;
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case rest::RequestType::GET:
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readProperties();
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break;
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case rest::RequestType::PUT:
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replaceProperties();
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break;
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default:
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generateNotImplemented("ILLEGAL " + DOCUMENT_PATH);
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break;
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}
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// this handler is done
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return RestStatus::DONE;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief was docuBlock DeleteApiQueryCache
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////////////////////////////////////////////////////////////////////////////////
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bool RestQueryCacheHandler::clearCache() {
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auto queryCache = arangodb::aql::QueryCache::instance();
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queryCache->invalidate();
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VPackBuilder result;
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result.add(VPackValue(VPackValueType::Object));
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result.add("error", VPackValue(false));
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result.add("code", VPackValue((int)rest::ResponseCode::OK));
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result.close();
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generateResult(rest::ResponseCode::OK, result.slice());
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return true;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief was docuBlock GetApiQueryCacheProperties
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////////////////////////////////////////////////////////////////////////////////
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bool RestQueryCacheHandler::readProperties() {
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auto queryCache = arangodb::aql::QueryCache::instance();
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VPackBuilder result = queryCache->properties();
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generateResult(rest::ResponseCode::OK, result.slice());
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return true;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief was docuBlock PutApiQueryCacheProperties
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////////////////////////////////////////////////////////////////////////////////
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bool RestQueryCacheHandler::replaceProperties() {
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auto const& suffixes = _request->suffixes();
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if (suffixes.size() != 1 || suffixes[0] != "properties") {
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generateError(rest::ResponseCode::BAD,
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TRI_ERROR_HTTP_BAD_PARAMETER,
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"expecting PUT /_api/query-cache/properties");
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return true;
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}
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bool validBody = true;
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std::shared_ptr<VPackBuilder> parsedBody =
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parseVelocyPackBody(&VPackOptions::Defaults, validBody);
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if (!validBody) {
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// error message generated in parseJsonBody
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return true;
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}
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VPackSlice body = parsedBody.get()->slice();
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if (!body.isObject()) {
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generateError(rest::ResponseCode::BAD,
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TRI_ERROR_HTTP_BAD_PARAMETER, "expecting a JSON-Object body");
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return true;
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}
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auto queryCache = arangodb::aql::QueryCache::instance();
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std::pair<std::string, size_t> cacheProperties;
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queryCache->properties(cacheProperties);
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VPackSlice attribute = body.get("mode");
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if (attribute.isString()) {
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cacheProperties.first = attribute.copyString();
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}
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attribute = body.get("maxResults");
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if (attribute.isNumber()) {
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cacheProperties.second = static_cast<size_t>(attribute.getUInt());
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}
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queryCache->setProperties(cacheProperties);
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return readProperties();
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}
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