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timestamp_config.h
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timestamp_config.h
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/*ckwg +29
* Copyright 2015 by Kitware, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither name of Kitware, Inc. nor the names of any contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _VITAL_TYPES_TIMESTAMP_CONFIG_H
#define _VITAL_TYPES_TIMESTAMP_CONFIG_H
#include <vital/types/timestamp.h>
#include <vital/config/config_block.h>
#include <sstream>
namespace kwiver {
namespace vital {
/**
* @brief Convert string to timestamp for config block.
*
* This function is a specialization of the config type converter. It
* converts a string to a native timestamp object.
*
* This is primarily used to supply *default* behaviour for a
* timestamp when getting data from the confiug.
*
* @param value String representation of timestamp.
*
* @return Native timestamp.
*/
template<>
inline
timestamp
config_block_get_value_cast( config_block_value_t const& value )
{
timestamp obj;
std::stringstream str; // add string to stream
str << value;
timestamp::time_t t;
str >> t;
obj.set_time_usec( t );
timestamp::frame_t f;
str >> f;
obj.set_frame( f );
return obj;
}
/**
* @brief Convert timestamp to string for config block.
*
* This function is a specialization of the config type converter. It
* converts a timestamp to a string representation for use in a config
* block.
*
* @param value Timestamp to be converted to a string.
*
* @return String representation of timestamp.
*/
template<>
inline
config_block_value_t
config_block_set_value_cast( timestamp const& value )
{
std::stringstream str;
str << value.get_time_usec() << " " << value.get_frame();
return str.str();
}
} } // end namespace
#endif /* _VITAL_TYPES_TIMESTAMP_CONFIG_H */