mirror of https://gitee.com/bigwinds/arangodb
128 lines
4.3 KiB
JavaScript
128 lines
4.3 KiB
JavaScript
////////////////////////////////////////////////////////////////////////////////
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/// @brief query actions
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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 2012 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 triAGENS GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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/// @author Copyright 2012, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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/// @addtogroup AvocadoAPI
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/// @{
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////////////////////////////////////////////////////////////////////////////////
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// -----------------------------------------------------------------------------
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// --SECTION-- global variables
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// -----------------------------------------------------------------------------
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var actions = require("actions");
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////////////////////////////////////////////////////////////////////////////////
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/// @brief parse a query and return information about it
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///
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/// @REST{POST /_api/query}
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///
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/// To validate a query string without executing it, the query string can be
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/// passed to the server via an HTTP POST request.
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///
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/// These query string needs to be passed in the attribute @LIT{query} of a
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/// JSON object as the body of the POST request.
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///
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/// The server will respond with @LIT{HTTP 400} or @LIT{HTTP 500} in case of a
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/// malformed request or a general error.
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/// If the query contains a parse error, the server will respond with an
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/// @LIT{HTTP 404} error.
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///
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/// The body of the response will contain the error details embedded in a JSON
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/// object.
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///
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/// @verbinclude querypostfail
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///
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/// If the query is valid, the server will respond with @LIT{HTTP 200} and return
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/// the names of the bind parameters it found in the query (if any) in the
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/// @LIT{"bindVars"} attribute of the response.
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///
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/// @verbinclude querypost
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////////////////////////////////////////////////////////////////////////////////
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function POST_api_query (req, res) {
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if (req.suffix.length != 0) {
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actions.resultNotFound(req, res, actions.ERROR_HTTP_NOT_FOUND);
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return;
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}
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try {
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var json = JSON.parse(req.requestBody);
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if (!json || !(json instanceof Object) || json.query == undefined) {
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actions.resultBad(req, res, actions.ERROR_QUERY_SPECIFICATION_INVALID, actions.getErrorMessage(actions.ERROR_QUERY_SPECIFICATION_INVALID));
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return;
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}
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var result = AHUACATL_PARSE(json.query);
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if (result instanceof AvocadoError) {
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actions.resultBad(req, res, result.errorNum, result.errorMessage);
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return;
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}
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result = { "bindVars" : result };
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actions.resultOk(req, res, actions.HTTP_OK, result);
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}
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catch (err) {
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actions.resultException(req, res, err);
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}
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}
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// -----------------------------------------------------------------------------
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// --SECTION-- initialiser
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @brief query actions gateway
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////////////////////////////////////////////////////////////////////////////////
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actions.defineHttp({
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url : "_api/query",
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context : "api",
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callback : function (req, res) {
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switch (req.requestType) {
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case (actions.POST) :
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POST_api_query(req, res);
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break;
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default:
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actions.resultUnsupported(req, res);
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}
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}
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});
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////////////////////////////////////////////////////////////////////////////////
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/// @}
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////////////////////////////////////////////////////////////////////////////////
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// Local Variables:
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// mode: outline-minor
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// outline-regexp: "^\\(/// @brief\\|/// @addtogroup\\|// --SECTION--\\|/// @page\\|/// @}\\)"
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// End:
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