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78 lines
2.0 KiB
78 lines
2.0 KiB
/*!
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* SparseStateRewardParser.cpp
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*
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* Created on: 23.12.2012
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* Author: Christian Dehnert
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*/
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#include "src/parser/SparseStateRewardParser.h"
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#include <errno.h>
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#include <time.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <locale.h>
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#include <iostream>
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#include <cstdlib>
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#include <cstdio>
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#include <cstring>
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#include <string>
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#include <vector>
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#include <clocale>
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#include "src/exceptions/WrongFormatException.h"
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#include "src/exceptions/FileIoException.h"
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#include "src/utility/OsDetection.h"
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#include "log4cplus/logger.h"
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#include "log4cplus/loggingmacros.h"
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extern log4cplus::Logger logger;
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namespace storm {
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namespace parser {
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/*!
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* Reads a state reward file and puts the result in a state reward vector.
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*
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* @param stateCount The number of states.
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* @param filename The filename of the state reward file.
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* @return The created state reward vector.
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*/
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std::vector<double> SparseStateRewardParser(uint_fast64_t stateCount, std::string const & filename) {
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// Open file.
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if (!fileExistsAndIsReadable(filename.c_str())) {
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LOG4CPLUS_ERROR(logger, "Error while parsing " << filename << ": File does not exist or is not readable.");
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throw storm::exceptions::WrongFormatException();
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}
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MappedFile file(filename.c_str());
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char* buf = file.data;
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// Create state reward vector with given state count.
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std::vector<double> stateRewards(stateCount);
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{
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// Now parse state reward assignments.
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uint_fast64_t state;
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double reward;
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// Iterate over states.
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while (buf[0] != '\0') {
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// Parse state number and reward value.
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state = checked_strtol(buf, &buf);
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reward = checked_strtod(buf, &buf);
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if (reward < 0.0) {
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LOG4CPLUS_ERROR(logger, "Expected positive reward value but got \"" << reward << "\".");
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throw storm::exceptions::WrongFormatException() << "State reward file specifies illegal reward value.";
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}
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stateRewards[state] = reward;
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buf = trimWhitespaces(buf);
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}
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}
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return stateRewards;
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}
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} // namespace parser
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} // namespace storm
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