ilExternalMediaAnalyzer Class Reference

Analyzes external media locations and extracts important information into parameter field. More...

Collaboration diagram for ilExternalMediaAnalyzer:

Static Public Member Functions
static	isYouTube ($a_location)
	Identify YouTube links.
static	extractYouTubeParameters ($a_location)
	Extract YouTube Parameter.
static	isFlickr ($a_location)
	Identify Flickr links.
static	extractFlickrParameters ($a_location)
	Extract Flickr Parameter.
static	isGoogleVideo ($a_location)
	Identify GoogleVideo links.
static	extractGoogleVideoParameters ($a_location)
	Extract GoogleVideo Parameter.
static	isGoogleDocument ($a_location)
	Identify Google Document links.
static	extractGoogleDocumentParameters ($a_location)
	Extract GoogleDocument Parameter.
static	extractUrlParameters ($a_location, $a_parameter)
	Extract URL information to parameter array.

Detailed Description

Analyzes external media locations and extracts important information into parameter field.

Author

Alex Killing alex..nosp@m.kill.nosp@m.ing@g.nosp@m.mx.d.nosp@m.e

Version

$Id$

Definition at line 33 of file class.ilExternalMediaAnalyzer.php.

Member Function Documentation

static ilExternalMediaAnalyzer::extractFlickrParameters (   $a_location )

static

Extract Flickr Parameter.

Definition at line 81 of file class.ilExternalMediaAnalyzer.php.

Referenced by extractUrlParameters().

        {
                $par = array();
                $pos1 = strpos($a_location, "flickr.com/photos/");
                $pos2 = strpos($a_location, "/", $pos1+18);
                if ($pos1 > 0)
                {
                        $len = ($pos2 > 0)
                                ? $pos2
                                : $a_location;
                        $par["user_id"] = substr($a_location, $pos1+18, $len - ($pos1+18));
                }
                
                // tags
                $pos1 = strpos($a_location, "/tags/");
                $pos2 = strpos($a_location, "/", $pos1+6);
                if ($pos1 > 0)
                {
                        $len = ($pos2 > 0)
                                ? $pos2
                                : strlen($a_location);
                        $par["tags"] = substr($a_location, $pos1+6, $len - ($pos1+6));
                }

                // sets
                $pos1 = strpos($a_location, "/sets/");
                $pos2 = strpos($a_location, "/", $pos1+6);
                if ($pos1 > 0)
                {
                        $len = ($pos2 > 0)
                                ? $pos2
                                : $a_location;
                        $par["sets"] = substr($a_location, $pos1+6, $len - ($pos1+6));
                }

                return $par;
        }

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static ilExternalMediaAnalyzer::extractGoogleDocumentParameters (   $a_location )

static

Extract GoogleDocument Parameter.

Definition at line 165 of file class.ilExternalMediaAnalyzer.php.

Referenced by extractUrlParameters().

        {
                $par = array();
                $pos1 = strpos($a_location, "id=");
                $pos2 = strpos($a_location, "&", $pos1 + 3);
                if ($pos1 > 0)
                {
                        $len = ($pos2 > 0)
                                ? $pos2
                                : strlen($a_location);
                        $par["docid"] = substr($a_location, $pos1+3, $len - ($pos1+3));
                }
                $pos1 = strpos($a_location, "docID=");
                $pos2 = strpos($a_location, "&", $pos1 + 6);
                if ($pos1 > 0)
                {
                        $len = ($pos2 > 0)
                                ? $pos2
                                : strlen($a_location);
                        $par["docid"] = substr($a_location, $pos1+6, $len - ($pos1+6));
                }
                if (strpos($a_location, "Presentation?") > 0)
                {
                        $par["type"] = "Presentation";
                }
                if (strpos($a_location, "View?") > 0)
                {
                        $par["type"] = "Document";
                }

                return $par;
        }

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static ilExternalMediaAnalyzer::extractGoogleVideoParameters (   $a_location )

static

Extract GoogleVideo Parameter.

Definition at line 134 of file class.ilExternalMediaAnalyzer.php.

Referenced by extractUrlParameters().

        {
                $par = array();
                $pos1 = strpos($a_location, "docid=");
                $pos2 = strpos($a_location, "&", $pos1 + 6);
                if ($pos1 > 0)
                {
                        $len = ($pos2 > 0)
                                ? $pos2
                                : strlen($a_location);
                        $par["docid"] = substr($a_location, $pos1+6, $len - ($pos1+6));
                }

                return $par;
        }

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static ilExternalMediaAnalyzer::extractUrlParameters (   $a_location,   $a_parameter  )

static

Extract URL information to parameter array.

Definition at line 201 of file class.ilExternalMediaAnalyzer.php.

References $name, extractFlickrParameters(), extractGoogleDocumentParameters(), extractGoogleVideoParameters(), extractYouTubeParameters(), isFlickr(), isGoogleDocument(), isGoogleVideo(), and isYouTube().

        {
                if (!is_array($a_parameter))
                {
                        $a_parameter = array();
                }
                
                $ext_par = array();
                
                // YouTube
                if (ilExternalMediaAnalyzer::isYouTube($a_location))
                {
                        $ext_par = ilExternalMediaAnalyzer::extractYouTubeParameters($a_location);
                        $a_parameter = array();
                }

                // Flickr
                if (ilExternalMediaAnalyzer::isFlickr($a_location))
                {
                        $ext_par = ilExternalMediaAnalyzer::extractFlickrParameters($a_location);
                        $a_parameter = array();
                }

                // GoogleVideo
                if (ilExternalMediaAnalyzer::isGoogleVideo($a_location))
                {
                        $ext_par = ilExternalMediaAnalyzer::extractGoogleVideoParameters($a_location);
                        $a_parameter = array();
                }

                // GoogleDocs
                if (ilExternalMediaAnalyzer::isGoogleDocument($a_location))
                {
                        $ext_par = ilExternalMediaAnalyzer::extractGoogleDocumentParameters($a_location);
                        $a_parameter = array();
                }

                foreach($ext_par as $name => $value)
                {
                        $a_parameter[$name] = $value;
                }

                return $a_parameter;
        }

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static ilExternalMediaAnalyzer::extractYouTubeParameters (   $a_location )

static

Extract YouTube Parameter.

Definition at line 50 of file class.ilExternalMediaAnalyzer.php.

Referenced by extractUrlParameters().

        {
                $par = array();
                $pos1 = strpos($a_location, "v=");
                $pos2 = strpos($a_location, "&", $pos1);
                if ($pos1 > 0)
                {
                        $len = ($pos2 > 0)
                                ? $pos2
                                : strlen($a_location);
                        $par["v"] = substr($a_location, $pos1+2, $len - ($pos1+2));
                }

                return $par;
        }

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static ilExternalMediaAnalyzer::isFlickr (   $a_location )

static

Identify Flickr links.

Definition at line 69 of file class.ilExternalMediaAnalyzer.php.

Referenced by extractUrlParameters().

        {
                if (strpos($a_location, "flickr.com") > 0)
                {
                        return true;
                }
                return false;
        }

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static ilExternalMediaAnalyzer::isGoogleDocument (   $a_location )

static

Identify Google Document links.

Definition at line 153 of file class.ilExternalMediaAnalyzer.php.

Referenced by extractUrlParameters().

        {
                if (strpos($a_location, "docs.google") > 0)
                {
                        return true;
                }
                return false;
        }

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static ilExternalMediaAnalyzer::isGoogleVideo (   $a_location )

static

Identify GoogleVideo links.

Definition at line 122 of file class.ilExternalMediaAnalyzer.php.

Referenced by extractUrlParameters().

        {
                if (strpos($a_location, "video.google") > 0)
                {
                        return true;
                }
                return false;
        }

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static ilExternalMediaAnalyzer::isYouTube (   $a_location )

static

Identify YouTube links.

Definition at line 38 of file class.ilExternalMediaAnalyzer.php.

Referenced by extractUrlParameters().

        {
                if (strpos($a_location, "youtube.com") > 0)
                {
                        return true;
                }
                return false;
        }

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The documentation for this class was generated from the following file:

• Services/MediaObjects/classes/class.ilExternalMediaAnalyzer.php