OpenWalnut  1.4.0
WEEG2.cpp
00001 //---------------------------------------------------------------------------
00002 //
00003 // Project: OpenWalnut ( http://www.openwalnut.org )
00004 //
00005 // Copyright 2009 OpenWalnut Community, BSV@Uni-Leipzig and CNCF@MPI-CBS
00006 // For more information see http://www.openwalnut.org/copying
00007 //
00008 // This file is part of OpenWalnut.
00009 //
00010 // OpenWalnut is free software: you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as published by
00012 // the Free Software Foundation, either version 3 of the License, or
00013 // (at your option) any later version.
00014 //
00015 // OpenWalnut is distributed in the hope that it will be useful,
00016 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00018 // GNU Lesser General Public License for more details.
00019 //
00020 // You should have received a copy of the GNU Lesser General Public License
00021 // along with OpenWalnut. If not, see <http://www.gnu.org/licenses/>.
00022 //
00023 //---------------------------------------------------------------------------
00024 
00025 #include <cstddef>
00026 
00027 #include <sstream>
00028 #include <string>
00029 #include <vector>
00030 
00031 #include <boost/shared_ptr.hpp>
00032 
00033 #include "../common/exceptions/WOutOfBounds.h"
00034 #include "exceptions/WDHException.h"
00035 #include "io/WPagerEEG.h"
00036 #include "WEEGChannelInfo.h"
00037 #include "WEEGPositionsLibrary.h"
00038 #include "WEEG2Segment.h"
00039 #include "WEEG2.h"
00040 
00041 
00042 boost::shared_ptr< WPrototyped > WEEG2::m_prototype = boost::shared_ptr< WPrototyped >();
00043 
00044 WEEG2::WEEG2( boost::shared_ptr< WPagerEEG > pager, boost::shared_ptr< WEEGPositionsLibrary > positionsLibrary )
00045 {
00046     if( !pager )
00047     {
00048         throw WDHException( std::string( "Couldn't construct new EEG: pager invalid" ) );
00049     }
00050 
00051     if( !positionsLibrary )
00052     {
00053         throw WDHException( std::string( "Couldn't construct new EEG: positions library invalid" ) );
00054     }
00055 
00056     std::size_t nbSegments = pager->getNumberOfSegments();
00057     if( nbSegments <= 0 || WRecording::MAX_RECORDING_SEGMENTS < nbSegments )
00058     {
00059         throw WDHException( std::string( "Couldn't construct new EEG: invalid number of segments" ) );
00060     }
00061 
00062     std::size_t nbChannels = pager->getNumberOfChannels();
00063     if( nbChannels <= 0 || WRecording::MAX_RECORDING_CHANNELS < nbChannels )
00064     {
00065         throw WDHException( std::string( "Couldn't construct new EEG: invalid number of channels" ) );
00066     }
00067 
00068     m_samplingRate = pager->getSamplingRate();
00069     if( m_samplingRate <= 0.0 || WRecording::MAX_RECORDING_SAMPLING_FREQUENCY < m_samplingRate )
00070     {
00071         throw WDHException( std::string( "Couldn't construct new EEG: invalid sampling rate" ) );
00072     }
00073 
00074     setFilename( pager->getFilename() );
00075 
00076     m_segments.reserve( nbSegments );
00077     for( std::size_t segmentID = 0; segmentID < nbSegments; ++segmentID )
00078     {
00079         m_segments.push_back( boost::shared_ptr< WEEG2Segment >( new WEEG2Segment( segmentID, pager ) ) );
00080     }
00081 
00082     m_channelInfos.reserve( nbChannels );
00083     for( std::size_t channelID = 0; channelID < nbChannels; ++channelID )
00084     {
00085         m_channelInfos.push_back( boost::shared_ptr< WEEGChannelInfo >( new WEEGChannelInfo( channelID, pager, positionsLibrary ) ) );
00086     }
00087 }
00088 
00089 WEEG2::WEEG2()
00090 {
00091 }
00092 
00093 std::size_t WEEG2::getNumberOfSegments() const
00094 {
00095     return m_segments.size();
00096 }
00097 
00098 std::size_t WEEG2::getNumberOfChannels() const
00099 {
00100     return m_channelInfos.size();
00101 }
00102 
00103 double WEEG2::getSamplingRate() const
00104 {
00105     return m_samplingRate;
00106 }
00107 
00108 boost::shared_ptr< WEEG2Segment > WEEG2::getSegment( std::size_t segmentID ) const
00109 {
00110     if( segmentID >= m_segments.size() )
00111     {
00112         std::ostringstream stream;
00113         stream << "The EEG has no segment number " << segmentID;
00114         throw WOutOfBounds( stream.str() );
00115     }
00116 
00117     return m_segments[segmentID];
00118 }
00119 
00120 boost::shared_ptr< WEEGChannelInfo > WEEG2::getChannelInfo( std::size_t channelID ) const
00121 {
00122     if( channelID >= m_channelInfos.size() )
00123     {
00124         std::ostringstream stream;
00125         stream << "The EEG has no channel number " << channelID;
00126         throw WOutOfBounds( stream.str() );
00127     }
00128 
00129     return m_channelInfos[channelID];
00130 }
00131 
00132 const std::string WEEG2::getName() const
00133 {
00134     return "WEEG2";
00135 }
00136 
00137 const std::string WEEG2::getDescription() const
00138 {
00139     return "Contains EEG data";
00140 }
00141 
00142 boost::shared_ptr< WPrototyped > WEEG2::getPrototype()
00143 {
00144     if( !m_prototype )
00145     {
00146         m_prototype = boost::shared_ptr< WPrototyped >( new WEEG2() );
00147     }
00148 
00149     return m_prototype;
00150 }