Program Listing for File message_collection_helper.hpp
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// Copyright 2020 Bjarne von Horn
//
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// SPDX-License-Identifier: BSD-3-Clause
#ifndef WAREHOUSE_ROS_SQLITE__MESSAGE_COLLECTION_HELPER_HPP_
#define WAREHOUSE_ROS_SQLITE__MESSAGE_COLLECTION_HELPER_HPP_
#include <warehouse_ros/message_collection.h>
#include <warehouse_ros_sqlite/utils.hpp>
#include <warehouse_ros_sqlite/warehouse_ros_sqlite_export.hpp>
#include <string>
#include <utility>
namespace warehouse_ros_sqlite
{
class WAREHOUSE_ROS_SQLITE_EXPORT MessageCollectionHelper : public warehouse_ros::
MessageCollectionHelper
{
sqlite3_ptr db_;
std::string collection_name_;
std::string db_name_;
std::string mangled_tablename_;
schema::escaped_tablename escaped_mangled_name_;
public:
MessageCollectionHelper() = default;
MessageCollectionHelper(sqlite3_ptr db, const std::string & db_name, const std::string & name)
: db_(std::move(db)),
collection_name_(name),
db_name_(db_name),
mangled_tablename_(schema::mangle_database_and_collection_name(db_name, name)),
escaped_mangled_name_(schema::escape_and_mangle_database_and_collection_name(db_name, name))
{
}
bool initialize(const std::string & datatype, const std::string & md5) override;
void insert(char * msg, size_t msg_size, warehouse_ros::Metadata::ConstPtr metadata) override;
warehouse_ros::ResultIteratorHelper::Ptr query(
warehouse_ros::Query::ConstPtr query, const std::string & sort_by = "",
bool ascending = true) const override;
unsigned removeMessages(warehouse_ros::Query::ConstPtr query) override;
void modifyMetadata(
warehouse_ros::Query::ConstPtr q,
warehouse_ros::Metadata::ConstPtr m) override;
unsigned count() override;
warehouse_ros::Query::Ptr createQuery() const override;
warehouse_ros::Metadata::Ptr createMetadata() const override;
std::string collectionName() const override
{
return collection_name_;
}
private:
enum class Md5CompareResult
{
EMPTY,
MATCH,
MISMATCH
};
Md5CompareResult findAndMatchMd5Sum(const std::array<unsigned char, 16> & md5_bytes);
};
} // namespace warehouse_ros_sqlite
#endif // WAREHOUSE_ROS_SQLITE__MESSAGE_COLLECTION_HELPER_HPP_