mirror of https://gitee.com/bigwinds/arangodb
104 lines
3.3 KiB
C++
104 lines
3.3 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief static transaction helper functions
|
|
///
|
|
/// @file
|
|
///
|
|
/// DISCLAIMER
|
|
///
|
|
/// Copyright 2004-2013 triAGENS GmbH, Cologne, Germany
|
|
///
|
|
/// Licensed under the Apache License, Version 2.0 (the "License");
|
|
/// you may not use this file except in compliance with the License.
|
|
/// You may obtain a copy of the License at
|
|
///
|
|
/// http://www.apache.org/licenses/LICENSE-2.0
|
|
///
|
|
/// Unless required by applicable law or agreed to in writing, software
|
|
/// distributed under the License is distributed on an "AS IS" BASIS,
|
|
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
/// See the License for the specific language governing permissions and
|
|
/// limitations under the License.
|
|
///
|
|
/// Copyright holder is triAGENS GmbH, Cologne, Germany
|
|
///
|
|
/// @author Jan Steemann
|
|
/// @author Copyright 2011-2013, triAGENS GmbH, Cologne, Germany
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include "Helper.h"
|
|
#include "Transaction/transactions.h"
|
|
#include "VocBase/vocbase.h"
|
|
|
|
using namespace std;
|
|
using namespace triagens::basics;
|
|
using namespace triagens::transaction;
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief append a document key
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool Helper::appendKey (Bson& document,
|
|
string const& key) {
|
|
return document.appendUtf8(string(TRI_VOC_ATTRIBUTE_KEY), key);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief extract a document key
|
|
/// this will throw if the document key is invalid
|
|
/// if the document does not contain the _key attribute, an empty string will
|
|
/// be returned
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
string Helper::documentKey (Bson const& document) {
|
|
BsonIter iter(document);
|
|
|
|
if (! iter.find(TRI_VOC_ATTRIBUTE_KEY)) {
|
|
// no _key attribute
|
|
return "";
|
|
}
|
|
|
|
// document has _key attribute
|
|
if (iter.getType() != BSON_TYPE_UTF8) {
|
|
// _key has an invalid type
|
|
THROW_ARANGO_EXCEPTION(TRI_ERROR_ARANGO_DOCUMENT_KEY_BAD);
|
|
}
|
|
|
|
// _key is a string
|
|
string const key = iter.getUtf8();
|
|
|
|
if (key.empty()) {
|
|
// _key is empty
|
|
THROW_ARANGO_EXCEPTION(TRI_ERROR_ARANGO_DOCUMENT_KEY_BAD);
|
|
}
|
|
|
|
return key;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief creates a BSON document from the string
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Bson Helper::documentFromJson (string const& data) {
|
|
return documentFromJson(data.c_str(), data.size());
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief creates a BSON document from the string
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Bson Helper::documentFromJson (char const* data,
|
|
size_t length) {
|
|
Bson document;
|
|
|
|
if (! document.fromJson(data)) {
|
|
THROW_ARANGO_EXCEPTION(TRI_ERROR_ARANGO_DOCUMENT_TYPE_INVALID);
|
|
}
|
|
|
|
return document;
|
|
}
|
|
|
|
// Local Variables:
|
|
// mode: outline-minor
|
|
// outline-regexp: "/// @brief\\|/// {@inheritDoc}\\|/// @addtogroup\\|/// @page\\|// --SECTION--\\|/// @\\}"
|
|
// End:
|