Content Object (ILIAS native learning module / digilib book) Manifest export class. More...

Collaboration diagram for ilContObjectManifestBuilder:

Public Member Functions
	ilContObjectManifestBuilder (&$a_cont_obj)
	Constructor public.
	buildManifest ()
	build manifest structure
	dump ($a_target_dir)
	dump manifest file into directory
	writeItemHierarchy ()
	write item hierarchy
	writeResources ()
	write resources
	ilContObjectManifestBuilder (&$a_cont_obj)
	Constructor public.
	buildManifest ($ver, $revision=null)
	build manifest structure
	dump ($a_target_dir)
	dump manifest file into directory
	writeItemHierarchy ()
	write item hierarchy
	writeItemHierarchyRec ($tree, $a_parent_node)
	write item hierarchy (Recursive Style)
	writeResources ()
	Create resource entries for the learning module "PKG" and all SCOS and Assets.

Data Fields
	$db
	$ilias
	$cont_obj
	$inst_id
	$writer
	$version

Detailed Description

Content Object (ILIAS native learning module / digilib book) Manifest export class.

Scorm 2004 Content Object Manifest export class.

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

Version

Id:: class.ilContObjectManifestBuilder.php 25629 2010-09-09 13:04:01Z akill

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

Version

Id:: class.ilContObjectManifestBuilder.php 12658 2006-11-29 08:51:48Z akill

Definition at line 16 of file class.ilContObjectManifestBuilder.php.

Member Function Documentation

ilContObjectManifestBuilder::buildManifest ( )

build manifest structure

Definition at line 43 of file class.ilContObjectManifestBuilder.php.

References writeItemHierarchy(), writeResources(), and ilXmlWriter\xmlHeader().

        {
                require_once("./Services/Xml/classes/class.ilXmlWriter.php");
                $this->writer = new ilXmlWriter;
                // set xml header
                $this->writer->xmlHeader();
                // manifest start tag
                $attrs = array();
                $attrs["identifier"] = "il_".IL_INST_ID."_"."man".
                        "_".$this->cont_obj->getId();
                $attrs["version"] = "";
                $attrs["xmlns:xsi"] = "http://www.w3.org/2001/XMLSchema-instance";
                $attrs["xsi:schemaLocation"] = "http://www.imsproject.org/xsd/imscp_rootv1p1p2".
                        " imscp_rootv1p1p2.xsd".
                        " http://www.imsglobal.org/xsd/imsmd_rootv1p2p1".
                        " imsmd_rootv1p2p1.xsd".
                        " http://www.adlnet.org/xsd/adlcp_rootv1p2".
                        " adlcp_rootv1p2.xsd";
                $attrs["xmlns:imsmd"] = "http://www.imsproject.org/xsd/imsmd_rootv1p2p1";
                $attrs["xmlns:adlcp"] = "http://www.adlnet.org/xsd/adlcp_rootv1p2";
                $attrs["xmlns"] = "http://www.imsproject.org/xsd/imscp_rootv1p1p2";
                $this->writer->xmlStartTag("manifest", $attrs);
                // organizations start tag
                $attrs = array();
                $this->writer->xmlStartTag("organizations", $attrs);
                // organization start tag
                $attrs = array();
                $attrs["identifier"] =  "il_".IL_INST_ID."_".$this->cont_obj->getType().
                        "_".$this->cont_obj->getId();
                $attrs["structure"] = "hierarchical"; 
                $this->writer->xmlStartTag("organization", $attrs);
                
                // title element
                $attrs = array();
                $this->writer->xmlElement("title", $attrs, $this->cont_obj->getTitle());
                
                // write item hierarchy
                $this->writeItemHierarchy();
                // organization end tag
                $this->writer->xmlEndTag("organization");
                
                // organizations end tag
                $this->writer->xmlEndTag("organizations");
                
                // resources start tag
                $attrs = array();
                $this->writer->xmlStartTag("resources", $attrs);
                
                // write resources
                $this->writeResources();
                // resources end tag
                $this->writer->xmlEndTag("resources");
                
                // manifest end tag
                $this->writer->xmlEndTag("manifest");
                
                // write manifest file
                //$this->xml->xmlDumpFile($this->export_dir."/".$this->subdir."/".$this->filename
                //      , false);
                        
                // destroy writer object
                $this->writer->_XmlWriter;
        }

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ilContObjectManifestBuilder::buildManifest	(	$ver,
		$revision = `null`
	)

build manifest structure

Definition at line 45 of file class.ilContObjectManifestBuilder.php.

References writeItemHierarchyRec(), writeResources(), and ilXmlWriter\xmlHeader().

        {
                require_once("./Services/Xml/classes/class.ilXmlWriter.php");
                require_once("./Modules/Scorm2004/classes/seq_editor/class.ilSCORM2004Item.php");
                $this->version = $ver;
                $this->writer = new ilXmlWriter;
                // set xml header
                $this->writer->xmlHeader();
                // manifest start tag
                $attrs = array();
                $attrs["identifier"] = "il_".IL_INST_ID."_".$this->cont_obj->getType()."_m_".$this->cont_obj->getId();
                switch ($this->version)
                {
                        case "2004":
                                $attrs["xmlns:imsss"]="http://www.imsglobal.org/xsd/imsss";
                                $attrs["xmlns:adlseq"]="http://www.adlnet.org/xsd/adlseq_v1p3";
                                $attrs["xmlns:adlnav"]="http://www.adlnet.org/xsd/adlnav_v1p3";
                                $attrs["xmlns:xsi"]="http://www.w3.org/2001/XMLSchema-instance";
                                $attrs["xmlns:adlcp"]="http://www.adlnet.org/xsd/adlcp_v1p3";
                                $attrs["xmlns"]="http://www.imsglobal.org/xsd/imscp_v1p1";
                                $attrs["xsi:schemaLocation"]="http://www.imsglobal.org/xsd/imscp_v1p1 imscp_v1p1.xsd http://www.adlnet.org/xsd/adlcp_v1p3 adlcp_v1p3.xsd http://www.imsglobal.org/xsd/imsss imsss_v1p0.xsd http://www.adlnet.org/xsd/adlseq_v1p3 adlseq_v1p3.xsd http://www.adlnet.org/xsd/adlnav_v1p3 adlnav_v1p3.xsd";
                                $attrs["version"]="2004 ".$revision." Edition";
                                break;
                        case "12":
                                $attrs["xmlns"]="http://www.imsproject.org/xsd/imscp_rootv1p1p2";
                                $attrs["xmlns:adlcp"]="http://www.adlnet.org/xsd/adlcp_rootv1p2";
                                $attrs["xmlns:xsi"]="http://www.w3.org/2001/XMLSchema-instance";
                                $attrs["xsi:schemaLocation"]="http://www.imsproject.org/xsd/imscp_rootv1p1p2 imscp_rootv1p1p2.xsd http://www.imsglobal.org/xsd/imsmd_rootv1p2p1 imsmd_rootv1p2p1.xsd http://www.adlnet.org/xsd/adlcp_rootv1p2 adlcp_rootv1p2.xsd";
                                $attrs["version"]="1.1";
                                break;  
                }
                $this->writer->xmlStartTag("manifest", $attrs);
                
                if($this->version=="2004")
                {
                $this->writer->xmlStartTag("metadata");
                $this->writer->xmlElement("schema",null,"ADL SCORM");
                $this->writer->xmlElement("schemaversion",null,"2004 ".$revision." Edition");
        $this->writer->xmlElement("adlcp:location",null,"indexMD.xml");
                $this->writer->xmlEndTag("metadata");
                }
                // organizations start tag
                $attrs = array();
                if($this->version=="2004")
                $attrs["xmlns:imscp"] = "http://www.imsglobal.org/xsd/imscp_v1p1";
                $attrs["default"] = "il_".IL_INST_ID."_".$this->cont_obj->getType()."_".$this->cont_obj->getId();
                $this->writer->xmlStartTag("organizations", $attrs);
                // organization start tag
                $attrs = array();
                $attrs["identifier"] =  "il_".IL_INST_ID."_".$this->cont_obj->getType()."_".$this->cont_obj->getId();
                $attrs["structure"] = "hierarchical";
                $this->writer->xmlStartTag("organization", $attrs);
                // title element
                $attrs = array();
                $this->writer->xmlElement("title", $attrs, $this->cont_obj->getTitle());
                // entry page
                /*if ($this->version == "2004" && $this->cont_obj->getEntryPage())
                {
                        include_once("./Modules/Scorm2004/classes/class.ilSCORM2004EntryAsset.php");
                        ilSCORM2004EntryAsset::addEntryPageItemXML($this->writer,
                                $this->cont_obj);
                }*/
        
                // write item hierarchy
                //$this->writeItemHierarchy();
                include_once("./Modules/Scorm2004/classes/class.ilSCORM2004Tree.php");
                $tree = new ilSCORM2004Tree($this->cont_obj->getId());
                //$tree = new ilTree($this->cont_obj->getId());
                //$tree->setTableNames('sahs_sc13_tree', 'sahs_sc13_tree_node');
                //$tree->setTreeTablePK("slm_id");
                $this->writeItemHierarchyRec($tree,$tree->getRootId());
                
                
                // sequencing information
                if($this->version=="2004") {
                        $seq_item = new ilSCORM2004Item($this->cont_obj->getId(),true);
                        $this->writer->xmlData($this->writer->xmlFormatData($seq_item->exportAsXML()),false,false);
                }
                // organization end tag
                $this->writer->xmlEndTag("organization");
                
                // organizations end tag
                $this->writer->xmlEndTag("organizations");
                // resources start tag
                $attrs = array();
                $this->writer->xmlStartTag("resources", $attrs);
                // write resources
                $this->writeResources();
                // resources end tag
                $this->writer->xmlEndTag("resources");
                // manifest end tag
                $this->writer->xmlEndTag("manifest");
                // write manifest file
                //$this->xml->xmlDumpFile($this->export_dir."/".$this->subdir."/".$this->filename
                //      , false);
                        
                // destroy writer object
                $this->writer->_XmlWriter;
        }

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ilContObjectManifestBuilder::dump ( $a_target_dir )

dump manifest file into directory

Definition at line 117 of file class.ilContObjectManifestBuilder.php.

        {
                $this->writer->xmlDumpFile($a_target_dir."/imsmanifest.xml", false);
        }

ilContObjectManifestBuilder::dump ( $a_target_dir )

dump manifest file into directory

Definition at line 161 of file class.ilContObjectManifestBuilder.php.

        {
                $this->writer->xmlDumpFile($a_target_dir."/imsmanifest.xml", false);
        }

ilContObjectManifestBuilder::ilContObjectManifestBuilder ( & $a_cont_obj )

Constructor public.

Definition at line 27 of file class.ilContObjectManifestBuilder.php.

References $ilias.

        {
                global $ilDB, $ilias;
                $this->cont_obj =& $a_cont_obj;
                $this->ilias =& $ilias;
                $this->db =& $ilDB;
                $this->inst_id = IL_INST_ID;
        }

ilContObjectManifestBuilder::ilContObjectManifestBuilder ( & $a_cont_obj )

Constructor public.

Definition at line 29 of file class.ilContObjectManifestBuilder.php.

References $ilias.

        {
                global $ilDB, $ilias;
                $this->cont_obj =& $a_cont_obj;
                $this->ilias =& $ilias;
                $this->db =& $ilDB;
                $this->inst_id = IL_INST_ID;
        }

ilContObjectManifestBuilder::writeItemHierarchy ( )

write item hierarchy

this first version only writes one item for the whole learning module

Definition at line 127 of file class.ilContObjectManifestBuilder.php.

Referenced by buildManifest().

        {
                // start item
                $attrs = array();
                $attrs["identifier"] = "INDEX";
                $attrs["identifierref"] = "RINDEX";
                $this->writer->xmlStartTag("item", $attrs);
                
                // title element
                $attrs = array();
                $this->writer->xmlElement("title", $attrs, $this->cont_obj->getTitle());
                
                // end item
                $this->writer->xmlEndTag("item");
        }

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ilContObjectManifestBuilder::writeItemHierarchy ( )

write item hierarchy

this first version only writes one item for the whole learning module

Definition at line 171 of file class.ilContObjectManifestBuilder.php.

        {
                include_once("Services/MetaData/classes/class.ilMD2XML.php");
                require_once("./Modules/Scorm2004/classes/seq_editor/class.ilSCORM2004Item.php");
                include_once("./Modules/Scorm2004/classes/class.ilSCORM2004Tree.php");
                $tree = new ilSCORM2004Tree($this->cont_obj->getId());
                //$tree = new ilTree($this->cont_obj->getId());
                //$tree->setTableNames('sahs_sc13_tree', 'sahs_sc13_tree_node');
                //$tree->setTreeTablePK("slm_id");
                $last_type = "";
                foreach($tree->getFilteredSubTree($tree->getRootId(),Array('page')) as $obj)
                {
                        if($obj['type']=='') continue;
                        $attrs = array();
                        if($obj['type']!='sco'&&$last_type=="sco")
                                $this->writer->xmlEndTag("item");
                        $attrs["identifier"] = "il_".IL_INST_ID."_".$obj['type']."_".$obj['obj_id'];
                        if($obj['type']=='sco')
                                $attrs["identifierref"] = $attrs["identifier"]."_ref";
                        $this->writer->xmlStartTag("item", $attrs);
                        $attrs = array();
                
                        $this->writer->xmlElement("title", $attrs, $obj['title']);      
                        if($this->version=="2004")
                        {
                                // sequencing information
                                $seq_item = new ilSCORM2004Item($obj['obj_id']);
                                $this->writer->xmlData($this->writer->xmlFormatData($seq_item->exportAsXML()),false,false);
                        }
                        
                        if($obj['type']=='sco') {
                                $this->writer->xmlEndTag("item");
                        }       
                        $last_type=$obj['type'];
                }
                $this->writer->xmlEndTag("item");
        }

ilContObjectManifestBuilder::writeItemHierarchyRec	(	$tree,
		$a_parent_node
	)

write item hierarchy (Recursive Style)

Definition at line 216 of file class.ilContObjectManifestBuilder.php.

Referenced by buildManifest().

                                                             {
                                
                foreach ($tree->getFilteredChilds(Array('page'),$a_parent_node) as $obj) 
                {
                        if($obj['type']=='') continue;
                        $attrs = array();
                        $attrs["identifier"] = "il_".IL_INST_ID."_".$obj['type']."_".$obj['obj_id'];
                        if($obj['type']=='sco' || $obj['type']=='ass')
                        {
                                $attrs["identifierref"] = $attrs["identifier"]."_ref";
                        }
                        $this->writer->xmlStartTag("item", $attrs);
                        $attrs = array();
                        $this->writer->xmlElement("title", $attrs, $obj['title']);
                        
                        if ($tree->getFilteredChilds(Array('page'),$obj['obj_id'])) 
                        {
                                $this->writeItemHierarchyRec($tree,$obj['obj_id']);
                        }
                        
                        if($this->version=="2004")
                        {
                                if($obj['type']=='sco' || $obj['type']=='ass')
                                {
                                        $this->writer->xmlStartTag("metadata");
                    $this->writer->xmlElement("adlcp:location",null,$obj['obj_id']."/indexMD.xml");
                        $this->writer->xmlEndTag("metadata");
                                }       
                                require_once("./Modules/Scorm2004/classes/seq_editor/class.ilSCORM2004Item.php");
                                $seq_item = new ilSCORM2004Item($obj['obj_id']);
                                $this->writer->xmlData($this->writer->xmlFormatData($seq_item->exportAsXML()),false,false);
                        }
                        $this->writer->xmlEndTag("item");       
                }
                
        }

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ilContObjectManifestBuilder::writeResources ( )

write resources

this first version only writes one resource for the whole learning module

Definition at line 149 of file class.ilContObjectManifestBuilder.php.

Referenced by buildManifest().

        {
                $attrs = array();
                $attrs["identifier"] = "RINDEX";
                $attrs["type"] = "webcontent";
                $attrs["adlcp:scormtype"] = "asset";
                $attrs["href"] = "res/index.html";
                $this->writer->xmlElement("resource", $attrs, "");
        }

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ilContObjectManifestBuilder::writeResources ( )

Create resource entries for the learning module "PKG" and all SCOS and Assets.

Definition at line 256 of file class.ilContObjectManifestBuilder.php.

References ilObject\_exists(), ilObject\_lookupType(), and ilObjStyleSheet\getContentStylePath().

        {
                include_once("./Modules/Scorm2004/classes/class.ilSCORM2004Tree.php");
                $tree = new ilSCORM2004Tree($this->cont_obj->getId());
                //$tree = new ilTree($this->cont_obj->getId());
                //$tree->setTableNames('sahs_sc13_tree', 'sahs_sc13_tree_node');
                //$tree->setTreeTablePK("slm_id");
                foreach($tree->getSubTree($tree->getNodeData($tree->root_id),true,array('sco', 'ass')) as $obj)
                {
                        $attrs = array();
                        $attrs["identifier"] = "il_".IL_INST_ID."_".$obj['type']."_".$obj['obj_id']."_ref";
                        $attrs["type"] = "webcontent";
                        if ($obj['type'] == "sco")
                        {
                                $attrs[($this->version=="2004"?"adlcp:scormType":"adlcp:scormtype")] = "sco";
                        }
                        else
                        {
                                $attrs[($this->version=="2004"?"adlcp:scormType":"adlcp:scormtype")] = "asset";
                        }
                        $attrs["href"] = "./".$obj['obj_id']."/index.html";
                        $this->writer->xmlStartTag("resource", $attrs, "");
                        $this->writer->xmlElement("dependency", array("identifierref"=>"il_".IL_INST_ID."_".$obj['type']."_".$obj['obj_id'].'ITSELF'), "");
                        $this->writer->xmlElement("dependency", array("identifierref"=>"il_".IL_INST_ID."_".$obj['type']."_".$obj['obj_id'].'OBJECTS'), "");
                        $this->writer->xmlElement("dependency", array("identifierref"=>"il_".IL_INST_ID."_".$obj['type']."_".$obj['obj_id'].'RESOURCES'), "");
                        $this->writer->xmlElement("dependency", array("identifierref"=>"il_".IL_INST_ID."_".$obj['type']."_".$obj['obj_id'].'FLAVOUR'), "");
                        $this->writer->xmlEndTag("resource");
                        
                        $attrs = array();
                        $attrs["identifier"] = "il_".IL_INST_ID."_".$obj['type']."_".$obj['obj_id'].'ITSELF';
                        $attrs["type"] = "webcontent";
                        $attrs[($this->version=="2004"?"adlcp:scormType":"adlcp:scormtype")] = "asset";
                        $this->writer->xmlStartTag("resource", $attrs, "");
                        $this->writer->xmlElement("file", array("href"=>"./".$obj['obj_id']."/index.xml"), "");
                        $this->writer->xmlElement("file", array("href"=>"./".$obj['obj_id']."/ilias_co_3_7.dtd"), "");
                        $this->writer->xmlElement("file", array("href"=>"./".$obj['obj_id']."/index.html"), "");
                        $this->writer->xmlEndTag("resource");
                        
                        $attrs = array();
                        $attrs["identifier"] = "il_".IL_INST_ID."_".$obj['type']."_".$obj['obj_id'].'RESOURCES';
                        $attrs["type"] = "webcontent";
                        $attrs[($this->version=="2004"?"adlcp:scormType":"adlcp:scormtype")] = "asset";
                        $this->writer->xmlStartTag("resource", $attrs, "");
                        $this->writer->xmlEndTag("resource");
                        
                        $attrs = array();
                        $attrs["identifier"] = "il_".IL_INST_ID."_".$obj['type']."_".$obj['obj_id'].'FLAVOUR';
                        $attrs["type"] = "webcontent";
                        $attrs[($this->version=="2004"?"adlcp:scormType":"adlcp:scormtype")] = "asset";
                        $this->writer->xmlStartTag("resource", $attrs, "");
                        $this->writer->xmlElement("file", array("href"=>"./".$obj['obj_id']."/index.xml"), "");
                        $this->writer->xmlElement("file", array("href"=>"./".$obj['obj_id']."/sco.xsl"), "");
                        $this->writer->xmlElement("file", array("href"=>"./".$obj['obj_id']."/css/system.css"), "");
                        $this->writer->xmlElement("file", array("href"=>"./".$obj['obj_id']."/css/style.css"), "");
                        $this->writer->xmlElement("file", array("href"=>"./".$obj['obj_id']."/js/scorm.js"), "");
                        $this->writer->xmlEndTag("resource");
                        
                        $attrs = array();
                        $attrs["identifier"] = "il_".IL_INST_ID."_".$obj['type']."_".$obj['obj_id'].'OBJECTS';
                        $attrs["type"] = "webcontent";
                        $attrs[($this->version=="2004"?"adlcp:scormType":"adlcp:scormtype")] = "asset";
                        $this->writer->xmlStartTag("resource", $attrs, "");
                        
                        $this->writer->xmlElement("file", array("href"=>"./".$obj['obj_id']."/players/flvplayer.swf"), "");
                        $this->writer->xmlElement("file", array("href"=>"./".$obj['obj_id']."/players/mp3player.swf"), "");
                        
                        include_once("./Services/Style/classes/class.ilObjStyleSheet.php");
                        
                        $active_css = ilObjStyleSheet::getContentStylePath($this->cont_obj->getStyleSheetId());
                        $active_css = split(@'\?',$active_css,2);
                        $css = fread(fopen($active_css[0],'r'),filesize($active_css[0]));
                        preg_match_all("/url\(([^\)]*)\)/",$css,$css_files);
                        $css_files = array_unique($css_files[1]);
                        $currdir = getcwd();
                        chdir(dirname($active_css[0]));
                        foreach ($css_files as $fileref)
                        {
                                if(file_exists($fileref))
                                {
                                $this->writer->xmlElement("file", array("href"=>"./".$obj['obj_id']."/images/".basename($fileref)), "");
                        }
                        }
                        chdir($currdir);
                        include_once("./Modules/Scorm2004/classes/class.ilSCORM2004Tree.php");
                        $pagetree = new ilSCORM2004Tree($this->cont_obj->getId());
                        //$pagetree = new ilTree($this->cont_obj->getId());
                        //$pagetree->setTableNames('sahs_sc13_tree', 'sahs_sc13_tree_node');
                        //$pagetree->setTreeTablePK("slm_id");
                        foreach($pagetree->getSubTree($pagetree->getNodeData($obj['obj_id']),false,'page') as $page)
                        {
                                $page_obj = new ilSCORM2004Page($page);
                                $page_obj->buildDom();
                                $mob_ids = $page_obj->collectMediaObjects(false);
                                foreach($mob_ids as $mob_id)
                                {
                                        if ($mob_id > 0 && ilObject::_exists($mob_id))
                                        {
                                                $media_obj = new ilObjMediaObject($mob_id);
                                                $media_obj = $media_obj->getMediaItem("Standard");
                                                if($media_obj!=null && $media_obj->getLocationType() == "LocalFile")
                                                        $this->writer->xmlElement("file", array("href"=>"./".$obj['obj_id']."/objects/il_".IL_INST_ID."_mob_".$mob_id."/".rawurlencode($media_obj->getLocation())), "");
                                        }
                                }
                                $file_ids = $page_obj->collectFileItems();
                                foreach($file_ids as $file_id)
                                {
                                        if (ilObject::_lookupType($file_id) == "file")
                                        {
                                                $file_obj = new ilObjFile($file_id, false);
                                                $this->writer->xmlElement("file", array("href"=>"./".$obj['obj_id']."/objects/il_".IL_INST_ID."_file_".$file_id."/".rawurlencode($file_obj->filename)), "");
                                        }
                                }
                                unset($page_obj);
                        }
                                                
                        $this->writer->xmlEndTag("resource");
                }
                if($this->version=="2004")
                {
                        $attrs = array();
                        $attrs["identifier"] = "PKG";
                        $attrs["type"] = "webcontent";
                                $attrs[($this->version=="2004"?"adlcp:scormType":"adlcp:scormtype")] = "asset";
                        $this->writer->xmlStartTag("resource", $attrs, "");
                        
                        $xsd_files = array('adlcp_v1p3.xsd','adlseq_v1p3.xsd','imsss_v1p0.xsd','adlnav_v1p3.xsd','adlnav_v1p3.xsd',
                        'imscp_v1p1.xsd','imsmanifest.xml','imsss_v1p0auxresource.xsd','imsss_v1p0control.xsd','imsss_v1p0delivery.xsd',
                        'imsss_v1p0limit.xsd','imsss_v1p0objective.xsd','imsss_v1p0random.xsd','imsss_v1p0rollup.xsd','imsss_v1p0seqrule.xsd',
                        'imsss_v1p0util.xsd','xml.xsd','index.html');
                        foreach($xsd_files as $xsd_file)
                        {
                                $attrs = array();
                                $attrs["href"] = $xsd_file;
                                $this->writer->xmlElement("file", $attrs, "");
                        }
                        $this->writer->xmlEndTag("resource");
                }
        }