D:/Home/Programs/iSpike/src/Reader/FileAngleReader.cpp

Go to the documentation of this file.

//iSpike includes
#include <iSpike/Reader/FileAngleReader.hpp>
#include <iSpike/ISpikeException.hpp>
#include <iSpike/Log/Log.hpp>
using namespace ispike;

//Other includes
#include <boost/regex.hpp>
#include <vector>
#include <iostream>
#include <fstream>
using namespace std;


FileAngleReader::FileAngleReader() {
        // Define the properties of this reader
        addProperty(Property("anglesIn.txt", "File Name", "The file where the angles will be read from", true));

        //Create description
        readerDescription = Description("File Angle Reader", "This is a file angle reader", "Angle Reader");
}


FileAngleReader::~FileAngleReader(){
}


/*--------------------------------------------------------------------*/
/*---------                 PUBLIC METHODS                     -------*/
/*--------------------------------------------------------------------*/

//Inherited from Reader
void FileAngleReader::initialize(map<string, Property>& properties){
        setProperties(properties);
        setInitialized(true);
}


//Inherited from PropertyHolder
void FileAngleReader::setProperties(map<string, Property>& properties){
        string fileName = updateStringProperty(properties["File Name"]);
        LOG(LOG_INFO) << "FileAngleReader: Reading angles from: " << fileName;
        readAngleFromFile(fileName);
}


/*--------------------------------------------------------------------*/
/*---------                PRIVATE METHODS                     -------*/
/*--------------------------------------------------------------------*/

void FileAngleReader::readAngleFromFile(string& fileName) {
        ifstream fileStream;
        string contents;

        fileStream.open(fileName.c_str(), std::ios::in | std::ios::binary);

        if (!fileStream) {
                std::ostringstream messageStream;
                messageStream << "Can't read angles: " << fileName;
                std::string message(messageStream.str());
                throw ISpikeException(message);
        }
        fileStream >> contents;

        LOG(LOG_INFO) << "FileAngleReader: Read the following angles: " << contents;

        if (fileStream.fail()) {
                std::ostringstream messageStream;
                messageStream << "Can't read angles: " << fileName;
                std::string message(messageStream.str());
                throw ISpikeException(message);
        }
        fileStream.close();

        vector<double> buffer;
        boost::regex split_string(" ");
        list<string> lines;
        boost::regex_split(std::back_inserter(lines), contents, split_string);
        while(lines.size() > 0) {
                std::string current_string = *(lines.begin());
                lines.pop_front();
                double angle = boost::lexical_cast<double>(current_string);
                buffer.push_back(angle);
        }

        if(!buffer.empty()) {
                setAngle(buffer[0]);
        } else {
                throw ISpikeException("FileAngleReader: No angles found in file.");
        }
}