#!/usr/bin/env python import traceback import pwd import os from os.path import join, isfile import subprocess import importlib # local imports from code_evaluator import CodeEvaluator class JavaCodeEvaluator(CodeEvaluator): """Tests the Java code obtained from Code Server""" def setup(self): super(JavaCodeEvaluator, self).setup() self.submit_code_path = self.create_submit_code_file('Test.java') def teardown(self): super(JavaCodeEvaluator, self).teardown() # Delete the created file. os.remove(self.submit_code_path) def get_commands(self, clean_ref_code_path, user_code_directory): compile_command = 'javac {0}'.format(self.submit_code_path), compile_main = ('javac {0} -classpath ' '{1} -d {2}').format(clean_ref_code_path, user_code_directory, user_code_directory) return compile_command, compile_main def check_code(self, user_answer, test_case_data): """ Function validates student code using instructor code as reference.The first argument ref_code_path, is the path to instructor code, it is assumed to have executable permission. The second argument submit_code_path, is the path to the student code, it is assumed to have executable permission. Returns -------- returns (True, "Correct answer") : If the student function returns expected output when called by reference code. returns (False, error_msg): If the student function fails to return expected output when called by reference code. Returns (False, error_msg): If mandatory arguments are not files or if the required permissions are not given to the file(s). """ ref_code_path = test_case_data[0] clean_ref_code_path, clean_test_case_path = self._set_test_code_file_path(ref_code_path) if not isfile(clean_ref_code_path): return False, "No file at %s or Incorrect path" % clean_ref_code_path if not isfile(self.submit_code_path): return False, 'No file at %s or Incorrect path' % self.submit_code_path success = False user_code_directory = os.getcwd() + '/' self.write_to_submit_code_file(self.submit_code_path, user_answer) ref_file_name = (clean_ref_code_path.split('/')[-1]).split('.')[0] user_output_path = "{0}{1}.class".format(user_code_directory, 'Test') ref_output_path = "{0}{1}.class".format(user_code_directory, ref_file_name) # user_output_path, ref_output_path = self.set_file_paths(user_code_directory, clean_ref_code_path) compile_command, compile_main = self.get_commands(clean_ref_code_path, user_code_directory) run_command_args = "java -cp {0} {1}".format(user_code_directory, ref_file_name) ret = self._compile_command(compile_command) proc, stdnt_stderr = ret stdnt_stderr = self._remove_null_substitute_char(stdnt_stderr) # Only if compilation is successful, the program is executed # And tested with testcases if stdnt_stderr == '': ret = self._compile_command(compile_main) proc, main_err = ret main_err = self._remove_null_substitute_char(main_err) if main_err == '': ret = self._run_command(run_command_args, shell=True, stdin=None, stdout=subprocess.PIPE, stderr=subprocess.PIPE) proc, stdout, stderr = ret if proc.returncode == 0: success, err = True, "Correct answer" else: err = stdout + "\n" + stderr os.remove(ref_output_path) else: err = "Error:" try: error_lines = main_err.splitlines() for e in error_lines: if ':' in e: err = err + "\n" + e.split(":", 1)[1] else: err = err + "\n" + e except: err = err + "\n" + main_err os.remove(user_output_path) else: err = "Compilation Error:" try: error_lines = stdnt_stderr.splitlines() for e in error_lines: if ':' in e: err = err + "\n" + e.split(":", 1)[1] else: err = err + "\n" + e except: err = err + "\n" + stdnt_stderr return success, err # def __init__(self, test_case_data, test, language, user_answer, # ref_code_path=None, in_dir=None): # super(JavaCodeEvaluator, self).__init__(test_case_data, test, # language, user_answer, # ref_code_path, in_dir) # self.test_case_args = self.setup() # def setup(self): # super(JavaCodeEvaluator, self).setup() # ref_path, test_case_path = self._set_test_code_file_path(self.ref_code_path) # self.submit_path = self.create_submit_code_file('Test.java') # # Set file paths # java_student_directory = os.getcwd() + '/' # java_ref_file_name = (ref_path.split('/')[-1]).split('.')[0] # # Set command variables # compile_command = 'javac {0}'.format(self.submit_path), # compile_main = ('javac {0} -classpath ' # '{1} -d {2}').format(ref_path, # java_student_directory, # java_student_directory) # run_command_args = "java -cp {0} {1}".format(java_student_directory, # java_ref_file_name) # remove_user_output = "{0}{1}.class".format(java_student_directory, # 'Test') # remove_ref_output = "{0}{1}.class".format(java_student_directory, # java_ref_file_name) # return (ref_path, self.submit_path, compile_command, compile_main, # run_command_args, remove_user_output, remove_ref_output) # def teardown(self): # # Delete the created file. # super(JavaCodeEvaluator, self).teardown() # os.remove(self.submit_path) # def check_code(self, ref_code_path, submit_code_path, compile_command, # compile_main, run_command_args, remove_user_output, # remove_ref_output): # """ Function validates student code using instructor code as # reference.The first argument ref_code_path, is the path to # instructor code, it is assumed to have executable permission. # The second argument submit_code_path, is the path to the student # code, it is assumed to have executable permission. # Returns # -------- # returns (True, "Correct answer") : If the student function returns # expected output when called by reference code. # returns (False, error_msg): If the student function fails to return # expected output when called by reference code. # Returns (False, error_msg): If mandatory arguments are not files or # if the required permissions are not given to the file(s). # """ # if not isfile(ref_code_path): # return False, "No file at %s or Incorrect path" % ref_code_path # if not isfile(submit_code_path): # return False, 'No file at %s or Incorrect path' % submit_code_path # success = False # ret = self._compile_command(compile_command) # proc, stdnt_stderr = ret # stdnt_stderr = self._remove_null_substitute_char(stdnt_stderr) # # Only if compilation is successful, the program is executed # # And tested with testcases # if stdnt_stderr == '': # ret = self._compile_command(compile_main) # proc, main_err = ret # main_err = self._remove_null_substitute_char(main_err) # if main_err == '': # ret = self._run_command(run_command_args, shell=True, # stdin=None, # stdout=subprocess.PIPE, # stderr=subprocess.PIPE) # proc, stdout, stderr = ret # if proc.returncode == 0: # success, err = True, "Correct answer" # else: # err = stdout + "\n" + stderr # os.remove(remove_ref_output) # else: # err = "Error:" # try: # error_lines = main_err.splitlines() # for e in error_lines: # if ':' in e: # err = err + "\n" + e.split(":", 1)[1] # else: # err = err + "\n" + e # except: # err = err + "\n" + main_err # os.remove(remove_user_output) # else: # err = "Compilation Error:" # try: # error_lines = stdnt_stderr.splitlines() # for e in error_lines: # if ':' in e: # err = err + "\n" + e.split(":", 1)[1] # else: # err = err + "\n" + e # except: # err = err + "\n" + stdnt_stderr # return success, err