porting LabParser and TraParser from c-style API to class API

src/mrmc.cpp

@@ -91,9 +91,9 @@ int main(const int argc, const char* argv[]) {
 		LOG4CPLUS_INFO(logger, "Enable verbose mode, log output gets printed to console.");
 	}
 
-	mrmc::storage::SquareSparseMatrix<double>* probMatrix = mrmc::parser::readTraFile(s->getString("trafile").c_str());
-	mrmc::models::AtomicPropositionsLabeling* labeling = mrmc::parser::readLabFile(probMatrix->getRowCount(), s->getString("labfile").c_str());
-	mrmc::models::Dtmc<double> dtmc(probMatrix, labeling);
+	mrmc::parser::TraParser traparser(s->getString("trafile").c_str());	
+	mrmc::parser::LabParser labparser(traparser.getMatrix()->getRowCount(), s->getString("labfile").c_str());
+	mrmc::models::Dtmc<double> dtmc(traparser.getMatrix(), labparser.getLabeling());
 
 	dtmc.printModelInformationToStream(std::cout);
 

src/parser/parser.cpp

@@ -29,7 +29,7 @@ extern log4cplus::Logger logger;
  *	@param end New pointer will be written there
  *	@return Result of strtol()
  */
-uint_fast64_t mrmc::parser::checked_strtol(const char* str, char** end)
+uint_fast64_t mrmc::parser::Parser::checked_strtol(const char* str, char** end)
 {
 	uint_fast64_t res = strtol(str, end, 10);
 	if (str == *end)
@@ -47,7 +47,7 @@ uint_fast64_t mrmc::parser::checked_strtol(const char* str, char** end)
  *	@param buf String buffer
  *	@return	pointer to first non-whitespace character
  */
-char* mrmc::parser::skipWS(char* buf)
+char* mrmc::parser::Parser::skipWS(char* buf)
 {
 	while ((*buf == ' ') || (*buf == '\t') || (*buf == '\n') || (*buf == '\r')) buf++;
 	return buf;

src/parser/parser.h

@@ -34,16 +34,6 @@ namespace mrmc {
  */
 namespace parser {
 	
-	/*!
-	 *	@brief Parses integer and checks, if something has been parsed.
-	 */
-	uint_fast64_t checked_strtol(const char* str, char** end);
-	
-	/*!
-	 *	@brief Skips common whitespaces in a string.
-	 */
-	char* skipWS(char* buf);
-	
 	/*!
 	 *	@brief Opens a file and maps it to memory providing a char*
 	 *	containing the file content.
@@ -110,6 +100,20 @@ namespace parser {
 		 */
 		~MappedFile();
 	};
+	
+	class Parser
+	{
+		protected:
+			/*!
+			 *	@brief Parses integer and checks, if something has been parsed.
+			 */
+			uint_fast64_t checked_strtol(const char* str, char** end);
+	
+			/*!
+			 *	@brief Skips common whitespaces in a string.
+			 */
+			char* skipWS(char* buf);
+	};
 
 } // namespace parser
 } // namespace mrmc

src/parser/readLabFile.cpp

@@ -45,7 +45,7 @@ namespace parser {
  *	@param filename   input .lab file's name.
  *	@return The pointer to the created labeling object.
  */
-mrmc::models::AtomicPropositionsLabeling * readLabFile(uint_fast64_t node_count, const char * filename)
+LabParser::LabParser(uint_fast64_t node_count, const char * filename)
 {
 	/*
 	 *	open file
@@ -105,7 +105,7 @@ mrmc::models::AtomicPropositionsLabeling * readLabFile(uint_fast64_t node_count,
 	/*
 	 *	create labeling object with given node and proposition count
 	 */
-	mrmc::models::AtomicPropositionsLabeling* result = new mrmc::models::AtomicPropositionsLabeling(node_count, proposition_count);
+	this->labeling = new mrmc::models::AtomicPropositionsLabeling(node_count, proposition_count);
 	
 	/*
 	 *	second run: add propositions and node labels to labeling
@@ -135,7 +135,7 @@ mrmc::models::AtomicPropositionsLabeling * readLabFile(uint_fast64_t node_count,
 				if (strncmp(buf, "#END", cnt) == 0) break;
 				strncpy(proposition, buf, cnt);
 				proposition[cnt] = '\0';
-				result->addAtomicProposition(proposition);
+				this->labeling->addAtomicProposition(proposition);
 			}
 			else cnt = 1; // next char is separator, one step forward
 		} while (cnt > 0);
@@ -178,19 +178,17 @@ mrmc::models::AtomicPropositionsLabeling * readLabFile(uint_fast64_t node_count,
 				else
 				{
 					/*
-					 *	copy proposition to buffer and add it to result
+					 *	copy proposition to buffer and add it to labeling
 					 */
 					strncpy(proposition, buf, cnt);
 					proposition[cnt] = '\0';
-					result->addAtomicPropositionToState(proposition, node);
+					this->labeling->addAtomicPropositionToState(proposition, node);
 					buf += cnt;
 				}
 			}
 			buf = skipWS(buf);
 		}
 	}
-	
-	return result;
 }
 
 } //namespace parser

src/parser/readLabFile.h

@@ -4,6 +4,7 @@
 #include "src/models/AtomicPropositionsLabeling.h"
 #include "boost/integer/integer_mask.hpp"
 
+#include "src/parser/parser.h"
 
 namespace mrmc {
 namespace parser {
@@ -11,7 +12,18 @@ namespace parser {
 /*!
  *	@brief Load label file and return initialized AtomicPropositionsLabeling object.
  */
-mrmc::models::AtomicPropositionsLabeling * readLabFile(uint_fast64_t node_count, const char * filename);
+class LabParser : Parser
+{
+	public:
+		LabParser(uint_fast64_t node_count, const char* filename);
+		mrmc::models::AtomicPropositionsLabeling* getLabeling()
+		{
+			return this->labeling;
+		}
+	
+	private:
+		mrmc::models::AtomicPropositionsLabeling* labeling;
+};
 
 } // namespace parser
 } // namespace mrmc

src/parser/readTraFile.cpp

@@ -48,7 +48,7 @@ namespace parser{
  *	@param buf Data to scan. Is expected to be some char array.
  *	@param maxnode Is set to highest id of all nodes.
  */
-static uint_fast32_t makeFirstPass(char* buf, uint_fast32_t &maxnode)
+uint_fast32_t TraParser::firstPass(char* buf, uint_fast32_t &maxnode)
 {
 	uint_fast32_t non_zero = 0;
 	
@@ -117,7 +117,8 @@ static uint_fast32_t makeFirstPass(char* buf, uint_fast32_t &maxnode)
  *	@return a pointer to the created sparse matrix.
  */
 
-mrmc::storage::SquareSparseMatrix<double> * readTraFile(const char * filename) {
+TraParser::TraParser(const char * filename)
+{
 	/*
 	*	enforce locale where decimal point is '.'
 	*/
@@ -133,7 +134,7 @@ mrmc::storage::SquareSparseMatrix<double> * readTraFile(const char * filename) {
 	 *	perform first pass, i.e. count entries that are not zero and not on the diagonal
 	 */
 	uint_fast32_t maxnode;
-	uint_fast32_t non_zero = makeFirstPass(file.data, maxnode);
+	uint_fast32_t non_zero = this->firstPass(file.data, maxnode);
 	/*
 	 *	if first pass returned zero, the file format was wrong
 	 */
@@ -148,7 +149,6 @@ mrmc::storage::SquareSparseMatrix<double> * readTraFile(const char * filename) {
 	 *	
 	 *	from here on, we already know that the file header is correct
 	 */
-	mrmc::storage::SquareSparseMatrix<double> *sp = NULL;
 
 	/*
 	 *	read file header, extract number of states
@@ -165,13 +165,13 @@ mrmc::storage::SquareSparseMatrix<double> * readTraFile(const char * filename) {
 	 *	non-zero elements has to be specified (which is non_zero, computed by make_first_pass)
 	 */
 	LOG4CPLUS_INFO(logger, "Attempting to create matrix of size " << (maxnode+1) << " x " << (maxnode+1) << ".");
-	sp = new mrmc::storage::SquareSparseMatrix<double>(maxnode + 1);
-	if (sp == NULL)
+	this->matrix = new mrmc::storage::SquareSparseMatrix<double>(maxnode + 1);
+	if (this->matrix == NULL)
 	{
 		LOG4CPLUS_ERROR(logger, "Could not create matrix of size " << (maxnode+1) << " x " << (maxnode+1) << ".");
 		throw std::bad_alloc();
 	}
-	sp->initialize(non_zero);
+	this->matrix->initialize(non_zero);
 
 	uint_fast64_t row, col;
 	double val;
@@ -196,15 +196,14 @@ mrmc::storage::SquareSparseMatrix<double> * readTraFile(const char * filename) {
 			LOG4CPLUS_ERROR(logger, "Found transition probability of " << val << ", but we think probabilities should be from (0,1].");
 			throw mrmc::exceptions::wrong_file_format();
 		}
-		sp->addNextValue(row,col,val);
+		this->matrix->addNextValue(row,col,val);
 		buf = skipWS(buf);
 	}
 	
 	/*
 	 * clean up
 	 */	
-	sp->finalize();
-	return sp;
+	this->matrix->finalize();
 }
 
 } //namespace parser

src/parser/readTraFile.h

@@ -3,6 +3,8 @@
 
 #include "src/storage/SquareSparseMatrix.h"
 
+#include "src/parser/parser.h"
+
 namespace mrmc {
 namespace parser {
 	
@@ -10,7 +12,22 @@ namespace parser {
  *	@brief	Load transition system from file and return initialized
  *	StaticSparseMatrix object.
  */
-mrmc::storage::SquareSparseMatrix<double> * readTraFile(const char * filename);
+class TraParser : Parser
+{
+	public:
+		TraParser(const char* filename);
+	
+		mrmc::storage::SquareSparseMatrix<double>* getMatrix()
+		{
+			return this->matrix;
+		}
+	
+	private:
+		mrmc::storage::SquareSparseMatrix<double>* matrix;
+		
+		uint_fast32_t firstPass(char* buf, uint_fast32_t &maxnode);
+	
+};
 		
 } // namespace parser
 } // namespace mrmc

src/utility/utility.cpp

@@ -74,16 +74,13 @@ void dtmcToDot(mrmc::models::Dtmc<double>* dtmc, const char* filename) {
 }
 
 mrmc::models::Dtmc<double>* parseDTMC(const char* tra_file, const char* lab_file) {
-   mrmc::storage::SquareSparseMatrix<double>* transition_matrix =
-         mrmc::parser::readTraFile(tra_file);
-   uint_fast64_t node_count = transition_matrix->getRowCount();
+	mrmc::parser::TraParser tp(tra_file);
+	uint_fast64_t node_count = tp.getMatrix()->getRowCount();
 
-   mrmc::models::AtomicPropositionsLabeling* labeling =
-         mrmc::parser::readLabFile(node_count, lab_file);
+	mrmc::parser::LabParser lp(node_count, lab_file);
 
-   mrmc::models::Dtmc<double>* result =
-         new mrmc::models::Dtmc<double>(transition_matrix, labeling);
-   return result;
+	mrmc::models::Dtmc<double>* result = new mrmc::models::Dtmc<double>(tp.getMatrix(), lp.getLabeling());
+	return result;
 }
 
 }

test/parser/read_lab_file_test.cpp

@@ -14,15 +14,17 @@
 
 TEST(ReadLabFileTest, NonExistingFileTest) {
    //No matter what happens, please don't create a file with the name "nonExistingFile.not"! :-)
-   ASSERT_THROW(mrmc::parser::readLabFile(0,MRMC_CPP_TESTS_BASE_PATH "/nonExistingFile.not"), mrmc::exceptions::file_IO_exception);
+   ASSERT_THROW(mrmc::parser::LabParser(0,MRMC_CPP_TESTS_BASE_PATH "/nonExistingFile.not"), mrmc::exceptions::file_IO_exception);
 }
 
 TEST(ReadLabFileTest, ParseTest) {
 	//This test is based on a test case from the original MRMC.
 	mrmc::models::AtomicPropositionsLabeling* labeling = NULL;
-
+	
+	mrmc::parser::LabParser* parser;
 	//Parsing the file
-	ASSERT_NO_THROW(labeling = mrmc::parser::readLabFile(12, MRMC_CPP_TESTS_BASE_PATH "/parser/lab_files/pctl_general_input_01.lab"));
+	ASSERT_NO_THROW(parser = new mrmc::parser::LabParser(12, MRMC_CPP_TESTS_BASE_PATH "/parser/lab_files/pctl_general_input_01.lab"));
+	labeling = parser->getLabeling();
 
 	//Checking whether all propositions are in the labelling
 
@@ -76,20 +78,21 @@ TEST(ReadLabFileTest, ParseTest) {
 
 		//Deleting the labeling
 		delete labeling;
+		delete parser;
 	} else {
 		FAIL();
 	}
 }
 
 TEST(ReadLabFileTest, WrongHeaderTest1) {
-   ASSERT_THROW(mrmc::parser::readLabFile(3, MRMC_CPP_TESTS_BASE_PATH "/parser/lab_files/wrong_format_header1.lab"), mrmc::exceptions::wrong_file_format);
+   ASSERT_THROW(mrmc::parser::LabParser(3, MRMC_CPP_TESTS_BASE_PATH "/parser/lab_files/wrong_format_header1.lab"), mrmc::exceptions::wrong_file_format);
 }
 
 TEST(ReadLabFileTest, WrongHeaderTest2) {
-   ASSERT_THROW(mrmc::parser::readLabFile(3, MRMC_CPP_TESTS_BASE_PATH "/parser/lab_files/wrong_format_header2.lab"), mrmc::exceptions::wrong_file_format);
+   ASSERT_THROW(mrmc::parser::LabParser(3, MRMC_CPP_TESTS_BASE_PATH "/parser/lab_files/wrong_format_header2.lab"), mrmc::exceptions::wrong_file_format);
 }
 
 TEST(ReadLabFileTest, WrongPropositionTest) {
-   ASSERT_THROW(mrmc::parser::readLabFile(3, MRMC_CPP_TESTS_BASE_PATH "/parser/lab_files/wrong_format_proposition.lab"), mrmc::exceptions::wrong_file_format);
+   ASSERT_THROW(mrmc::parser::LabParser(3, MRMC_CPP_TESTS_BASE_PATH "/parser/lab_files/wrong_format_proposition.lab"), mrmc::exceptions::wrong_file_format);
 }
 

test/parser/read_tra_file_test.cpp

@@ -14,14 +14,16 @@
 
 TEST(ReadTraFileTest, NonExistingFileTest) {
    //No matter what happens, please don't create a file with the name "nonExistingFile.not"! :-)
-   ASSERT_THROW(mrmc::parser::readTraFile(MRMC_CPP_TESTS_BASE_PATH "/nonExistingFile.not"), mrmc::exceptions::file_IO_exception);
+   ASSERT_THROW(mrmc::parser::TraParser(MRMC_CPP_TESTS_BASE_PATH "/nonExistingFile.not"), mrmc::exceptions::file_IO_exception);
 }
 
 /* The following test case is based on one of the original MRMC test cases
  */
 TEST(ReadTraFileTest, ParseFileTest1) {
 	mrmc::storage::SquareSparseMatrix<double> *result = NULL;
-	ASSERT_NO_THROW(result = mrmc::parser::readTraFile(MRMC_CPP_TESTS_BASE_PATH "/parser/tra_files/csl_general_input_01.tra"));
+	mrmc::parser::TraParser* parser;
+	ASSERT_NO_THROW(parser = new mrmc::parser::TraParser(MRMC_CPP_TESTS_BASE_PATH "/parser/tra_files/csl_general_input_01.tra"));
+	result = parser->getMatrix();
 
 	if (result != NULL) {
 		double val = 0;
@@ -62,19 +64,20 @@ TEST(ReadTraFileTest, ParseFileTest1) {
 		// FIXME: adapt this test case to the new dot-output routines
 		/* result->toDOTFile("output.dot"); */
 		delete result;
+		delete parser;
 	} else {
 		FAIL();
 	}
 }
 
 TEST(ReadTraFileTest, WrongFormatTestHeader1) {
-   ASSERT_THROW(mrmc::parser::readTraFile(MRMC_CPP_TESTS_BASE_PATH "/parser/tra_files/wrong_format_header1.tra"), mrmc::exceptions::wrong_file_format);
+   ASSERT_THROW(mrmc::parser::TraParser(MRMC_CPP_TESTS_BASE_PATH "/parser/tra_files/wrong_format_header1.tra"), mrmc::exceptions::wrong_file_format);
 }
 
 TEST(ReadTraFileTest, WrongFormatTestHeader2) {
-   ASSERT_THROW(mrmc::parser::readTraFile(MRMC_CPP_TESTS_BASE_PATH "/parser/tra_files/wrong_format_header2.tra"), mrmc::exceptions::wrong_file_format);
+   ASSERT_THROW(mrmc::parser::TraParser(MRMC_CPP_TESTS_BASE_PATH "/parser/tra_files/wrong_format_header2.tra"), mrmc::exceptions::wrong_file_format);
 }
 
 TEST(ReadTraFileTest, WrongFormatTestTransition) {
-   ASSERT_THROW(mrmc::parser::readTraFile(MRMC_CPP_TESTS_BASE_PATH "/parser/tra_files/wrong_format_transition.tra"), mrmc::exceptions::wrong_file_format);
+   ASSERT_THROW(mrmc::parser::TraParser(MRMC_CPP_TESTS_BASE_PATH "/parser/tra_files/wrong_format_transition.tra"), mrmc::exceptions::wrong_file_format);
 }