mirror of https://gitee.com/bigwinds/arangodb
138 lines
4.8 KiB
C++
138 lines
4.8 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// @brief document utility functions
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///
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/// @file
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///
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/// DISCLAIMER
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///
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/// Copyright 2014 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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/// @author Copyright 2014, ArangoDB GmbH, Cologne, Germany
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/// @author Copyright 2012-2013, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#include "DocumentHelper.h"
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#include "Basics/json.h"
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#include "Basics/StringUtils.h"
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#include "VocBase/vocbase.h"
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using namespace triagens::arango;
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using namespace triagens::basics;
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// -----------------------------------------------------------------------------
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// --SECTION-- class DocumentHelper
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// -----------------------------------------------------------------------------
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// -----------------------------------------------------------------------------
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// --SECTION-- public static methods
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief assemble a document id from a string and a string
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////////////////////////////////////////////////////////////////////////////////
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std::string DocumentHelper::assembleDocumentId (std::string const& collectionName,
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std::string const& key) {
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return collectionName + TRI_DOCUMENT_HANDLE_SEPARATOR_STR + key;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief assemble a document id from a string and a char* key
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////////////////////////////////////////////////////////////////////////////////
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std::string DocumentHelper::assembleDocumentId (std::string const& collectionName,
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const TRI_voc_key_t key) {
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if (key == 0) {
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return collectionName + TRI_DOCUMENT_HANDLE_SEPARATOR_STR + "_unknown";
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}
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return collectionName + TRI_DOCUMENT_HANDLE_SEPARATOR_STR + key;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief extract the collection id and document key from an id
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////////////////////////////////////////////////////////////////////////////////
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bool DocumentHelper::parseDocumentId (CollectionNameResolver const& resolver,
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char const* input,
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TRI_voc_cid_t& cid,
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char** key) {
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if (input == nullptr) {
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return false;
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}
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char const* pos = strchr(input, TRI_DOCUMENT_HANDLE_SEPARATOR_CHR);
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if (pos == nullptr) {
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return false;
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}
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cid = resolver.getCollectionIdCluster(std::string(input, pos - input));
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*key = (char*) (pos + 1);
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if (cid == 0 || **key == '\0') {
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// unknown collection or empty key
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return false;
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}
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return true;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief extract the "_key" attribute from a JSON object
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////////////////////////////////////////////////////////////////////////////////
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int DocumentHelper::getKey (TRI_json_t const* json,
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TRI_voc_key_t* key) {
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*key = 0;
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// check type of json
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if (! TRI_IsObjectJson(json)) {
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return TRI_ERROR_NO_ERROR;
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}
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// check if _key is there
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TRI_json_t const* k = TRI_LookupObjectJson(json, TRI_VOC_ATTRIBUTE_KEY);
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if (k == nullptr) {
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return TRI_ERROR_NO_ERROR;
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}
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if (! TRI_IsStringJson(k)) {
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// _key is there but not a string
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return TRI_ERROR_ARANGO_DOCUMENT_KEY_BAD;
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}
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// _key is there and a string
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*key = k->_value._string.data;
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return TRI_ERROR_NO_ERROR;
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}
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// -----------------------------------------------------------------------------
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// --SECTION-- END-OF-FILE
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// -----------------------------------------------------------------------------
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// Local Variables:
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// mode: outline-minor
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// outline-regexp: "/// @brief\\|/// {@inheritDoc}\\|/// @page\\|// --SECTION--\\|/// @\\}"
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// End:
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