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Database.cpp
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137 lines (103 loc) · 2.93 KB
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//
// Database.cpp
//
// $Id$
//
// Library: MongoDB
// Package: MongoDB
// Module: Database
//
// Implementation of the Database class.
//
// Copyright (c) 2012, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/MongoDB/Database.h"
namespace Poco {
namespace MongoDB {
Database::Database(const std::string& db) : _dbname(db)
{
}
Database::~Database()
{
}
Int64 Database::count(Connection& connection, const std::string& collectionName) const
{
Poco::SharedPtr<Poco::MongoDB::QueryRequest> countRequest = createCountRequest(collectionName);
Poco::MongoDB::ResponseMessage response;
connection.sendRequest(*countRequest, response);
if ( response.documents().size() > 0 )
{
Poco::MongoDB::Document::Ptr doc = response.documents()[0];
if (doc->isType<double>("n")) {
return static_cast<Int64>(doc->get<double>("n"));
}
else if (doc->isType<Int32>("n")) {
return doc->get<Int32>("n");
}
else if (doc->isType<Int64>("n")) {
return doc->get<Int64>("n");
}
}
return -1;
}
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)
{
Poco::MongoDB::Document::Ptr index = new Poco::MongoDB::Document();
index->add("ns", _dbname + "." + collection);
index->add("name", indexName);
index->add("key", keys);
if ( version > 0 )
{
index->add("version", version);
}
if ( unique )
{
index->add("unique", true);
}
if ( background )
{
index->add("background", true);
}
if ( ttl > 0 )
{
index->add("expireAfterSeconds", ttl);
}
Poco::SharedPtr<Poco::MongoDB::InsertRequest> insertRequest = createInsertRequest("system.indexes");
insertRequest->documents().push_back(index);
connection.sendRequest(*insertRequest);
return getLastErrorDoc(connection);
}
Document::Ptr Database::getLastErrorDoc(Connection& connection) const
{
Document::Ptr errorDoc;
Poco::SharedPtr<Poco::MongoDB::QueryRequest> request = createQueryRequest("$cmd");
request->setNumberToReturn(1);
request->selector().add("getLastError", 1);
Poco::MongoDB::ResponseMessage response;
connection.sendRequest(*request, response);
if ( response.documents().size() > 0 )
{
errorDoc = response.documents()[0];
}
return errorDoc;
}
std::string Database::getLastError(Connection& connection) const
{
Document::Ptr errorDoc = getLastErrorDoc(connection);
if ( !errorDoc.isNull() && errorDoc->isType<std::string>("err") )
{
return errorDoc->get<std::string>("err");
}
return "";
}
Poco::SharedPtr<Poco::MongoDB::QueryRequest> Database::createCountRequest(const std::string& collectionName) const
{
Poco::SharedPtr<Poco::MongoDB::QueryRequest> request = createQueryRequest("$cmd");
request->setNumberToReturn(1);
request->selector().add("count", collectionName);
return request;
}
} } // namespace Poco::MongoDB