class.assJavaApplet.php

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<?php
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once './Modules/TestQuestionPool/classes/class.assQuestion.php';
require_once './Modules/Test/classes/inc.AssessmentConstants.php';
require_once './Modules/TestQuestionPool/interfaces/interface.ilObjQuestionScoringAdjustable.php';
require_once './Modules/TestQuestionPool/interfaces/interface.iQuestionCondition.php';
require_once './Modules/TestQuestionPool/classes/class.ilUserQuestionResult.php';

class assJavaApplet extends assQuestion implements ilObjQuestionScoringAdjustable, iQuestionCondition
{
        var $javaapplet_filename;

        var $java_code;

        var $java_codebase;

        var $java_archive;

        var $java_width;

        var $java_height;

        var $parameters;

        function __construct(
                $title = "",
                $comment = "",
                $author = "",
                $owner = -1,
                $question = "",
                $javaapplet_filename = ""
        )
        {
                parent::__construct($title, $comment, $author, $owner, $question);
                $this->javaapplet_filename = $javaapplet_filename;
                $this->parameters = array();
        }

        public function splitParams($params = "")
        {
                $params_array = split("<separator>", $params);
                foreach ($params_array as $pair)
                {
                        if (preg_match("/(.*?)\=(.*)/", $pair, $matches))
                        {
                                switch ($matches[1])
                                {
                                        case "java_code" :
                                                $this->java_code = $matches[2];
                                                break;
                                        case "java_codebase" :
                                                $this->java_codebase = $matches[2];
                                                break;
                                        case "java_archive" :
                                                $this->java_archive = $matches[2];
                                                break;
                                        case "java_width" :
                                                $this->java_width = $matches[2];
                                                break;
                                        case "java_height" :
                                                $this->java_height = $matches[2];
                                                break;
                                }
                                if (preg_match("/param_name_(\d+)/", $matches[1], $found_key))
                                {
                                        $this->parameters[$found_key[1]]["name"] = $matches[2];
                                }
                                if (preg_match("/param_value_(\d+)/", $matches[1], $found_key))
                                {
                                        $this->parameters[$found_key[1]]["value"] = $matches[2];
                                }
                        }
                }
        }

        public function buildParams()
        {
                $params_array = array();
                if ($this->java_code)
                {
                        array_push($params_array, "java_code=$this->java_code");
                }
                if ($this->java_codebase)
                {
                        array_push($params_array, "java_codebase=$this->java_codebase");
                }
                if ($this->java_archive)
                {
                        array_push($params_array, "java_archive=$this->java_archive");
                }
                if ($this->java_width)
                {
                        array_push($params_array, "java_width=$this->java_width");
                }
                if ($this->java_height)
                {
                        array_push($params_array, "java_height=$this->java_height");
                }
                foreach ($this->parameters as $key => $value)
                {
                        array_push($params_array, "param_name_$key=" . $value["name"]);
                        array_push($params_array, "param_value_$key=" . $value["value"]);
                }
                
                return join($params_array, "<separator>");
        }

        public function buildParamsOnly()
        {
                $params_array = array();
                if ($this->java_code)
                {
                        array_push($params_array, "java_code=$this->java_code");
                        array_push($params_array, "java_codebase=$this->java_codebase");
                        array_push($params_array, "java_archive=$this->java_archive");
                }
                foreach ($this->parameters as $key => $value)
                {
                        array_push($params_array, "param_name_$key=" . $value["name"]);
                        array_push($params_array, "param_value_$key=" . $value["value"]);
                }
                return join($params_array, "<separator>");
        }

        public function isComplete()
        {
                if (strlen($this->title) 
                        && $this->author
                        && $this->question
                        && $this->javaapplet_filename 
                        && $this->java_width
                        && $this->java_height
                        && $this->getPoints() > 0
                )
                {
                        return true;
                }
                else if (strlen($this->title) 
                        && $this->author
                        && $this->question
                        && $this->getJavaArchive() 
                        && $this->getJavaCodebase() 
                        && $this->java_width
                        && $this->java_height
                        && $this->getPoints() > 0
                )
                {
                        return true;
                }
                return false;
        }


        public function saveToDb($original_id = "")
        {
                $this->saveQuestionDataToDb($original_id);
                $this->saveAdditionalQuestionDataToDb();
                parent::saveToDb($original_id);
        }

        public function saveAdditionalQuestionDataToDb()
        {
                global $ilDB;
                $params = $this->buildParams();
                // save additional data
                $ilDB->manipulateF( "DELETE FROM " . $this->getAdditionalTableName() . " WHERE question_fi = %s",
                                                        array( "integer" ),
                                                        array( $this->getId() )
                );
                $ilDB->manipulateF( "INSERT INTO " . $this->getAdditionalTableName(
                                                                                                                        ) . " (question_fi, image_file, params) VALUES (%s, %s, %s)",
                                                        array( "integer", "text", "text" ),
                                                        array(
                                                                $this->getId(),
                                                                $this->javaapplet_filename,
                                                                $params
                                                        )
                );
        }

        public function loadFromDb($question_id)
        {
                global $ilDB;

                $result = $ilDB->queryF("SELECT qpl_questions.*, " . $this->getAdditionalTableName() . ".* FROM qpl_questions LEFT JOIN " . $this->getAdditionalTableName() . " ON " . $this->getAdditionalTableName() . ".question_fi = qpl_questions.question_id WHERE qpl_questions.question_id = %s",
                        array("integer"),
                        array($question_id)
                );
                if ($result->numRows() == 1)
                {
                        $data = $ilDB->fetchAssoc($result);
                        $this->setId($question_id);
                        $this->setObjId($data["obj_fi"]);
                        $this->setNrOfTries($data['nr_of_tries']);
                        $this->setTitle($data["title"]);
                        $this->setComment($data["description"]);
                        $this->setOriginalId($data["original_id"]);
                        $this->setAuthor($data["author"]);
                        $this->setPoints($data["points"]);
                        $this->setOwner($data["owner"]);
                        include_once("./Services/RTE/classes/class.ilRTE.php");
                        $this->setQuestion(ilRTE::_replaceMediaObjectImageSrc($data["question_text"], 1));
                        $this->setJavaAppletFilename($data["image_file"]);
                        $this->splitParams($data["params"]);
                        $this->setEstimatedWorkingTime(substr($data["working_time"], 0, 2), substr($data["working_time"], 3, 2), substr($data["working_time"], 6, 2));
                        
                        try
                        {
                                $this->setAdditionalContentEditingMode($data['add_cont_edit_mode']);
                        }
                        catch(ilTestQuestionPoolException $e)
                        {
                        }
                }
                parent::loadFromDb($question_id);
        }

        function duplicate($for_test = true, $title = "", $author = "", $owner = "", $testObjId = null)
        {
                if ($this->id <= 0)
                {
                        // The question has not been saved. It cannot be duplicated
                        return;
                }
                // duplicate the question in database
                $this_id = $this->getId();
                $thisObjId = $this->getObjId();
                
                $clone = $this;
                include_once ("./Modules/TestQuestionPool/classes/class.assQuestion.php");
                $original_id = assQuestion::_getOriginalId($this->id);
                $clone->id = -1;
                
                if( (int)$testObjId > 0 )
                {
                        $clone->setObjId($testObjId);
                }
                
                if ($title)
                {
                        $clone->setTitle($title);
                }
                if ($author)
                {
                        $clone->setAuthor($author);
                }
                if ($owner)
                {
                        $clone->setOwner($owner);
                }
                if ($for_test)
                {
                        $clone->saveToDb($original_id);
                }
                else
                {
                        $clone->saveToDb();
                }

                // copy question page content
                $clone->copyPageOfQuestion($this_id);
                // copy XHTML media objects
                $clone->copyXHTMLMediaObjectsOfQuestion($this_id);
                // duplicate the image
                $clone->duplicateApplet($this_id, $thisObjId);

                $clone->onDuplicate($thisObjId, $this_id, $clone->getObjId(), $clone->getId());
                
                return $clone->id;
        }

        function copyObject($target_questionpool_id, $title = "")
        {
                if ($this->id <= 0)
                {
                        // The question has not been saved. It cannot be duplicated
                        return;
                }
                // duplicate the question in database
                $clone = $this;
                include_once ("./Modules/TestQuestionPool/classes/class.assQuestion.php");
                $original_id = assQuestion::_getOriginalId($this->id);
                $clone->id = -1;
                $source_questionpool_id = $this->getObjId();
                $clone->setObjId($target_questionpool_id);
                if ($title)
                {
                        $clone->setTitle($title);
                }
                $clone->saveToDb();

                // copy question page content
                $clone->copyPageOfQuestion($original_id);
                // copy XHTML media objects
                $clone->copyXHTMLMediaObjectsOfQuestion($original_id);
                // duplicate the image
                $clone->copyApplet($original_id, $source_questionpool_id);
                
                $clone->onCopy($source_questionpool_id, $original_id, $clone->getObjId(), $clone->getId());
                
                return $clone->id;
        }

        public function createNewOriginalFromThisDuplicate($targetParentId, $targetQuestionTitle = "")
        {
                if ($this->id <= 0)
                {
                        // The question has not been saved. It cannot be duplicated
                        return;
                }

                include_once ("./Modules/TestQuestionPool/classes/class.assQuestion.php");

                $sourceQuestionId = $this->id;
                $sourceParentId = $this->getObjId();

                // duplicate the question in database
                $clone = $this;
                $clone->id = -1;

                $clone->setObjId($targetParentId);

                if ($targetQuestionTitle)
                {
                        $clone->setTitle($targetQuestionTitle);
                }

                $clone->saveToDb();
                // copy question page content
                $clone->copyPageOfQuestion($sourceQuestionId);
                // copy XHTML media objects
                $clone->copyXHTMLMediaObjectsOfQuestion($sourceQuestionId);
                // duplicate the image
                $clone->copyApplet($sourceQuestionId, $sourceParentId);

                $clone->onCopy($sourceParentId, $sourceQuestionId, $clone->getObjId(), $clone->getId());

                return $clone->id;
        }

        function duplicateApplet($question_id, $objectId = null)
        {
                $javapath = $this->getJavaPath();
                $javapath_original = preg_replace("/([^\d])$this->id([^\d])/", "\${1}$question_id\${2}", $javapath);
                
                if( (int)$objectId > 0 )
                {
                        $javapath_original = str_replace("/$this->obj_id/", "/$objectId/", $javapath_original);
                }
                
                if (!file_exists($javapath))
                {
                        ilUtil::makeDirParents($javapath);
                }
                $filename = $this->getJavaAppletFilename();
                if (!copy($javapath_original . $filename, $javapath . $filename)) {
                        print "java applet could not be duplicated!!!! ";
                }
        }

        function copyApplet($question_id, $source_questionpool)
        {
                $javapath = $this->getJavaPath();
                $javapath_original = preg_replace("/([^\d])$this->id([^\d])/", "\${1}$question_id\${2}", $javapath);
                $javapath_original = str_replace("/$this->obj_id/", "/$source_questionpool/", $javapath_original);
                if (!file_exists($javapath))
                {
                        ilUtil::makeDirParents($javapath);
                }
                $filename = $this->getJavaAppletFilename();
                if (!copy($javapath_original . $filename, $javapath . $filename)) {
                        print "java applet could not be copied!!!! ";
                }
        }

        function getJavaCode()
        {
                return $this->java_code;
        }

        function getJavaCodebase()
        {
                return $this->java_codebase;
        }

        function getJavaArchive()
        {
                return $this->java_archive;
        }

        function setJavaCode($java_code = "")
        {
                $this->java_code = $java_code;
        }

        function setJavaCodebase($java_codebase = "")
        {
                $this->java_codebase = $java_codebase;
        }

        function setJavaArchive($java_archive = "")
        {
                $this->java_archive = $java_archive;
        }

        function getJavaWidth()
        {
                return $this->java_width;
        }

        public function setJavaWidth($java_width = "")
        {
                $this->java_width = $java_width;
        }

        function getJavaHeight()
        {
                return $this->java_height;
        }

        function setJavaHeight($java_height = "")
        {
                $this->java_height = $java_height;
        }

        public function calculateReachedPoints($active_id, $pass = NULL, $authorizedSolution = true, $returndetails = FALSE)
        {
                if( $returndetails )
                {
                        throw new ilTestException('return details not implemented for '.__METHOD__);
                }
                
                global $ilDB;
                
                $found_values = array();
                if (is_null($pass))
                {
                        $pass = $this->getSolutionMaxPass($active_id);
                }
                
                $result = $this->getCurrentSolutionResultSet($active_id, $pass, $authorizedSolution);
                
                $points = 0;
                while ($data = $ilDB->fetchAssoc($result))
                {
                        $points += $data["points"];
                }

                return $points;
        }
        
        public function calculateReachedPointsFromPreviewSession(ilAssQuestionPreviewSession $previewSession)
        {
                $points = 0;
                foreach($previewSession->getParticipantsSolution() as $solution)
                {
                        if( isset($solution['points']) )
                        {
                                $points += $solution['points'];
                        }
                }
                return $points;
        }
        
        // hey: prevPassSolutions - bypass intermediate solution requests and deligate
        //                                                      to own implementation for requests to authorized solutions 
        public function getSolutionValues($active_id, $pass = NULL, $authorized = true)
        {
                if( !$authorized )
                {
                        return array();
                }
                
                return $this->getSolutionValuesRegardlessOfAuthorization($active_id, $pass);
        }
        
        public function getSolutionValuesRegardlessOfAuthorization($active_id, $pass = NULL)
        {
                // - similar to getSolutionValues in general
                // - does not consider "step" in any kind
                // - returns a customized associative array
                // - is the original implementation for qtype
                return $this->getReachedInformation($active_id, $pass);
        }
        // hey.

        public function getReachedInformation($active_id, $pass = NULL)
        {
                global $ilDB;
                
                $found_values = array();
                if (is_null($pass))
                {
                        $pass = $this->getSolutionMaxPass($active_id);
                }
                $result = $ilDB->queryF("SELECT * FROM tst_solutions WHERE active_fi = %s AND question_fi = %s AND pass = %s",
                        array('integer','integer','integer'),
                        array($active_id, $this->getId(), $pass)
                );
                $counter = 1;
                $user_result = array();
                while ($data = $ilDB->fetchAssoc($result))
                {
                        $true = 0;
                        if ($data["points"] > 0)
                        {
                                $true = 1;
                        }
                        $solution = array(
                                "order" => $counter,
                                "points" => $data["points"],
                                "true" => $true,
                                "value1" => $data["value1"],
                                "value2" => $data["value2"],
                        );
                        $counter++;
                        array_push($user_result, $solution);
                }
                return $user_result;
        }

        function addParameter($name = "", $value = "")
        {
                $index = $this->getParameterIndex($name);
                if ($index > -1)
                {
                        $this->parameters[$index] = array("name" => $name, "value" => $value);
                }
                else
                {
                        array_push($this->parameters, array("name" => $name, "value" => $value));
                }
        }

        public function addParameterAtIndex($index = 0, $name = "", $value = "")
        {
                if (array_key_exists($index, $this->parameters))
                {
                        // insert parameter
                        $newparams = array();
                        for ($i = 0; $i < $index; $i++)
                        {
                                array_push($newparams, $this->parameters[$i]);
                        }
                        array_push($newparams, array($name, $value));
                        for ($i = $index; $i < count($this->parameters); $i++)
                        {
                                array_push($newparams, $this->parameters[$i]);
                        }
                        $this->parameters = $newparams;
                }
                else
                {
                        array_push($this->parameters, array($name, $value));
                }
        }

        public function removeParameter($index)
        {
                if ($index < 0) return;
                if (count($this->parameters) < 1) return;
                if ($index >= count($this->parameters)) return;
                unset($this->parameters[$index]);
                $this->parameters = array_values($this->parameters);
        }

        function getParameter($index)
        {
                if (($index < 0) or ($index >= count($this->parameters)))
                {
                        return undef;
                }
                return $this->parameters[$index];
        }

        function getParameterIndex($name)
        {
                foreach ($this->parameters as $key => $value)
                {
                        if (array_key_exists($name, $value))
                        {
                                return $key;
                        }
                }
                return -1;
        }

        function getParameterCount()
        {
                return count($this->parameters);
        }

        function flushParams()
        {
                $this->parameters = array();
        }

        public function saveWorkingData($active_id, $pass = NULL, $authorized = true)
        {
                // nothing to save!

                //$this->getProcessLocker()->requestUserSolutionUpdateLock();
                // store in tst_solutions
                //$this->getProcessLocker()->releaseUserSolutionUpdateLock();
                
                return true;
        }

        protected function savePreviewData(ilAssQuestionPreviewSession $previewSession)
        {
                // nothing to save!

                return true;
        }

        protected function reworkWorkingData($active_id, $pass, $obligationsAnswered)
        {
                // nothing to rework!
        }

        function getJavaAppletFilename()
        {
                return $this->javaapplet_filename;
        }

        public function setJavaAppletFilename($javaapplet_filename, $javaapplet_tempfilename = "")
        {
                if (!empty($javaapplet_filename))
                {
                        $this->javaapplet_filename = $javaapplet_filename;
                }
                if (!empty($javaapplet_tempfilename))
                {
                        $javapath = $this->getJavaPath();
                        if (!file_exists($javapath))
                        {
                                ilUtil::makeDirParents($javapath);
                        }
                        
                        if (!ilUtil::moveUploadedFile($javaapplet_tempfilename, $javaapplet_filename, $javapath.$javaapplet_filename))
                        {
                                $ilLog->write("ERROR: java applet question: java applet not uploaded: $javaapplet_filename");
                        }
                        else
                        {
                                $this->setJavaCodebase();
                                $this->setJavaArchive();
                        }
                }
        }
        
        function deleteJavaAppletFilename()
        {
                @unlink($this->getJavaPath() . $this->getJavaAppletFilename());
                $this->javaapplet_filename = "";
        }

        public function getQuestionType()
        {
                return "assJavaApplet";
        }

        public function getAdditionalTableName()
        {
                return "qpl_qst_javaapplet";
        }

        function getRTETextWithMediaObjects()
        {
                return parent::getRTETextWithMediaObjects();
        }

        public function setExportDetailsXLS(&$worksheet, $startrow, $active_id, $pass, &$format_title, &$format_bold)
        {
                include_once ("./Services/Excel/classes/class.ilExcelUtils.php");
                $solutions = $this->getSolutionValues($active_id, $pass);
                $worksheet->writeString($startrow, 0, ilExcelUtils::_convert_text($this->lng->txt($this->getQuestionType())), $format_title);
                $worksheet->writeString($startrow, 1, ilExcelUtils::_convert_text($this->getTitle()), $format_title);
                $i = 1;
                foreach ($solutions as $solution)
                {
                        $worksheet->write($startrow + $i, 1, ilExcelUtils::_convert_text($this->lng->txt("result") . " $i"));
                        if (strlen($solution["value1"])) $worksheet->write($startrow + $i, 1, ilExcelUtils::_convert_text($solution["value1"]));
                        if (strlen($solution["value2"])) $worksheet->write($startrow + $i, 2, ilExcelUtils::_convert_text($solution["value2"]));
                        $i++;
                }
                return $startrow + $i + 1;
        }

        public function isAutosaveable()
        {
                return FALSE;
        }

        public function getOperators($expression)
        {
                require_once "./Modules/TestQuestionPool/classes/class.ilOperatorsExpressionMapping.php";
                return ilOperatorsExpressionMapping::getOperatorsByExpression($expression);
        }

        public function getExpressionTypes()
        {
                return array(
                        iQuestionCondition::PercentageResultExpression,
                        iQuestionCondition::EmptyAnswerExpression,
                );
        }

        public function getUserQuestionResult($active_id, $pass)
        {
                $result = new ilUserQuestionResult($this, $active_id, $pass);

                $points = $this->calculateReachedPoints($active_id, $pass);
                $max_points = $this->getMaximumPoints();

                $result->setReachedPercentage(($points/$max_points) * 100);

                return $result;
        }

        public function getAvailableAnswerOptions($index = null)
        {
                return array();
        }
}