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152 lines
4.1 KiB
C++
152 lines
4.1 KiB
C++
//
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// Database.cpp
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//
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// $Id$
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//
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// Library: MongoDB
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// Package: MongoDB
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// Module: Database
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//
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// Implementation of the Database class.
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//
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// Copyright (c) 2012, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#include "Poco/MongoDB/Database.h"
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namespace Poco {
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namespace MongoDB {
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Database::Database( const std::string& db) : _dbname(db)
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{
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}
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Database::~Database()
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{
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}
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double Database::count(Connection& connection, const std::string& collectionName) const
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{
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Poco::SharedPtr<Poco::MongoDB::QueryRequest> countRequest = createCountRequest(collectionName);
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Poco::MongoDB::ResponseMessage response;
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connection.sendRequest(*countRequest, response);
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if ( response.documents().size() > 0 )
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{
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Poco::MongoDB::Document::Ptr doc = response.documents()[0];
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return doc->get<double>("n");
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}
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return -1;
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}
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Poco::MongoDB::Document::Ptr Database::ensureIndex(Connection& connection, const std::string& collection, const std::string& indexName, Poco::MongoDB::Document::Ptr keys, bool unique, bool background, int version, int ttl)
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{
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Poco::MongoDB::Document::Ptr index = new Poco::MongoDB::Document();
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index->add("ns", _dbname + ".players");
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index->add("name", indexName);
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index->add("key", keys);
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if ( version > 0 )
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{
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index->add("version", version);
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}
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if ( unique )
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{
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index->add("unique", true);
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}
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if ( background )
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{
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index->add("background", true);
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}
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if ( ttl > 0 )
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{
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index->add("expireAfterSeconds", ttl);
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}
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Poco::SharedPtr<Poco::MongoDB::InsertRequest> insertRequest = createInsertRequest("system.indexes");
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insertRequest->documents().push_back(index);
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connection.sendRequest(*insertRequest);
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insertRequest->documents().push_back(index);
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connection.sendRequest(*insertRequest);
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return getLastErrorDoc(connection);
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}
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Document::Ptr Database::getLastErrorDoc(Connection& connection) const
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{
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Document::Ptr errorDoc;
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Poco::SharedPtr<Poco::MongoDB::QueryRequest> request = createQueryRequest("$cmd");
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request->setNumberToReturn(1);
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request->selector().add("getLastError", 1);
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Poco::MongoDB::ResponseMessage response;
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connection.sendRequest(*request, response);
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if ( response.documents().size() > 0 )
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{
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errorDoc = response.documents()[0];
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}
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return errorDoc;
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}
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std::string Database::getLastError(Connection& connection) const
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{
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Document::Ptr errorDoc = getLastErrorDoc(connection);
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if ( !errorDoc.isNull() && errorDoc->isType<std::string>("err") )
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{
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return errorDoc->get<std::string>("err");
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}
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return "";
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}
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Poco::SharedPtr<Poco::MongoDB::QueryRequest> Database::createCountRequest(const std::string& collectionName) const
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{
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Poco::SharedPtr<Poco::MongoDB::QueryRequest> request = createQueryRequest("$cmd");
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request->setNumberToReturn(1);
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request->selector().add("count", collectionName);
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return request;
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}
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} } // namespace Poco::MongoDB
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