~azzar1/unity/add-show-desktop-key

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#!/usr/bin/python
# IVLE - Informatics Virtual Learning Environment
# Copyright (C) 2007-2009 The University of Melbourne
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

# Author:  Nicholas Chadwick

"""Script to upload an exercise file into the database"""

import os, sys, traceback
import xml.dom.minidom as minidom

from ivle.database import Exercise, TestSuite, TestCase, TestSuiteVar, TestCasePart, get_store

class XMLMalformedError(Exception):
    """Error thrown when encountering malformed data."""
    
    def __init__(self, text):
        self.msg = text

def getTextData(element):
    """ Get the text and cdata inside an element
    Leading and trailing whitespace are stripped
    """
    data = ''
    for child in element.childNodes:
        if child.nodeType == child.CDATA_SECTION_NODE:
            data += child.data
        elif child.nodeType == child.TEXT_NODE:
            data += child.data
        else:
            data += child.toxml()

    return unicode(data.strip())

def add_var(store, var_type, var_name=u"", var_value=u"", arg_no=0):
    """Given an var node, parse it into a storm object."""
    new_var = TestSuiteVar()
    new_var.var_name = unicode(var_name)
    new_var.var_value = unicode(var_value)
    new_var.var_type = unicode(var_type)
    new_var.arg_no = arg_no
    store.add(new_var)
    return new_var

def add_test_suite(suite_node, suite_num, store):
    """Given a test suite element, get all the cases it contains."""
    cases = []
    case_num = 0
    for case_node in suite_node.getElementsByTagName('function'):
        cases.append(add_test_case(case_node, case_num, store))
        case_num += 1

    ## ALLOWED TAGS ##
    # stdin     - Stdin for the suite - Unique - Text inside element
    # file      - File to add to the filespace - Name - List
    # var       - Variable for the suite - Name/Value - List
    # arg       - Argument to functions - Name/Value - ORDERED List
    # exception - Allowed exception name - Name - List
    # function  - An actual test case
    suite_vars = []
    
    # Add file nodes
    file_nodes = suite_node.getElementsByTagName('file')
    for file_node in file_nodes:
        suite_vars.append(add_var(store, 'file', file_node.getAttribute('name')))
    
    # Add vars
    var_nodes = suite_node.getElementsByTagName('var')
    for var_node in var_nodes:
        var_name = var_node.getAttribute('name')
        var_value = var_node.getAttribute('value')
        suite_vars.append(add_var(store, 'var', var_name, var_value))
    
    # Args need to be numbered as they are found, as this order matters
    arg_num = 0
    for arg_node in suite_node.getElementsByTagName('arg'):
        suite_vars.append(add_var(store, 'arg', arg_node.getAttribute('name'),
                          arg_node.getAttribute('value'), arg_num))
        arg_num += 1
         
    # Add allowed exceptions
    exception_nodes = suite_node.getElementsByTagName('exception')
    for exception_node in exception_nodes:
        name = exception_node.getAttribute('name')
        suite_vars.append(add_var(store, 'exception', name))
    
    # Can only have 0-1 stdin elements
    stdin = suite_node.getElementsByTagName('stdin')
    if len(stdin) > 1:
        raise XMLMalformedError('Too many stdin tags found.')
    if stdin:
        stdin = getTextData(stdin[0])
    else:
        stdin = ""
    
    new_suite = TestSuite()
    new_suite.description = unicode(suite_node.getAttribute('name'))
    new_suite.seq_no = suite_num
    new_suite.function = unicode(suite_node.getAttribute('function'))
    new_suite.stdin = unicode(stdin)
    for testcase in cases:
        new_suite.test_cases.add(testcase)
    for var in suite_vars:
        new_suite.variables.add(var)
    store.add(new_suite)
    return new_suite

def add_part(store, part_type, test_type, data, filename=u""):
    new_part = TestCasePart()
    new_part.part_type = unicode(part_type)
    new_part.test_type = unicode(test_type)
    new_part.data = unicode(data)
    new_part.filename = unicode(filename)
    store.add(new_part)
    return new_part

def add_test_case(case_node, case_num, store):
    """Given a test case node, parse it int a storm object."""
    
    ## ALLOWED TAGS ##
    # A function is allowed to contain the following elements 
    # stdout
    # stderr
    # result
    # exception
    # file
    # code
    allowed_parts = ['stdout', 'stderr', 'result', 'exception', 'file', 'code']
    parts = []
    for child_node in case_node.childNodes:
        if child_node.nodeType != child_node.ELEMENT_NODE:
            continue
        
        if child_node.tagName == 'file':
            part_type = 'file'
            test_type = child_node.getAttribute('type')
            data = getTextData(child_node)
            filename = child_node.getAttribute('name')
            if filename == "":
                raise XMLMalformedException('file tag must have names')
            parts.append(add_part(store, part_type, test_type, data,
                                        filename))
            
        elif child_node.tagName in allowed_parts:
            part_type = child_node.tagName
            test_type = child_node.getAttribute('type')
            data = getTextData(child_node)    
            parts.append(add_part(store, part_type, test_type, data))

    #Now create the object to hold the data
    new_test_case = TestCase()
    new_test_case.passmsg = unicode(case_node.getAttribute(u'pass'))
    new_test_case.failmsg = unicode(case_node.getAttribute(u'fail'))
    new_test_case.test_default = unicode(case_node.getAttribute(u'default'))
    new_test_case.seq_no = case_num
    store.add(new_test_case)
    for part in parts:
        new_test_case.parts.add(part)
    return new_test_case

xmlfile = sys.argv[1]

def add_exercise(xmlfile):
    store = get_store()

    # Skip existing ones.
    if store.find(Exercise, id=unicode(xmlfile)).count():
        return

    print "Adding exercise", xmlfile
    try:
        filedom = minidom.parse(xmlfile)
    except IOError, e:
        raise Exception('ivle-addexercise: error opening file ' + xmlfile + ': ' + e[1])

    for child in filedom.childNodes:
        if child.nodeType == child.ELEMENT_NODE and child.tagName == 'exercise':
            exercise = child
        else:
            raise XMLMalformedError('ivle-addexercise: error parsing XML: root node must be "exercise"')

    exercisename = exercise.getAttribute('name')
    rows = exercise.getAttribute('rows')
    if rows == '':
        rows = 4
    solution = None
    partial_solution = None
    include_code = None
    description = None
    test_suite_nodes = []
    for child in exercise.childNodes:
        if child.nodeType != child.ELEMENT_NODE:
            continue
        if child.tagName == 'solution':
            if solution is not None:
                raise XMLMalformedError('ivle-addexercise: error parsing XML: multiple "solution" nodes')
            solution = getTextData(child)
        elif child.tagName == 'include':
            if include_code is not None:
                raise XMLMalformedError('ivle-addexercise: error parsing XML: multiple "include" nodes')
            include_code = getTextData(child)
        elif child.tagName == 'partial':
            if partial_solution is not None:
                raise XMLMalformedError('ivle-addexercise: error parsing XML: multiple "include" nodes')
            partial_solution = getTextData(child)
        elif child.tagName == 'case':
            test_suite_nodes.append(child)
        elif child.tagName == 'desc':
            description = getTextData(child)

    new_exercise = Exercise()
    new_exercise.id = unicode(xmlfile)
    new_exercise.name = exercisename
    new_exercise.num_rows = int(rows)
    new_exercise.partial = partial_solution
    new_exercise.solution = solution
    new_exercise.include = include_code
    new_exercise.description = description
    new_exercise.partial = partial_solution
    store.add(new_exercise)
    suite_num = 0
    for suite in test_suite_nodes:
        new_exercise.test_suites.add(add_test_suite(suite, suite_num, store))
        suite_num += 1

    store.add(new_exercise)
    store.commit()
    
xmlfiles = sys.argv[1:]
for xmlfile in xmlfiles:
    try:
        add_exercise(xmlfile)
    except Exception, e:
        print "ERROR: Could not add file", xmlfile