- DOI implementation wit unit testing

app/Http/Controllers/DoiController.php

@@ -0,0 +1,203 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Interfaces\DOIInterface;
+use App\Models\Dataset;
+use App\Models\DatasetIdentifier;
+use Illuminate\Http\Request;
+use App\Models\Oai\OaiModelError;
+use App\Exceptions\OaiModelException;
+use Illuminate\Support\Facades\Log;
+
+class DoiController extends Controller
+{
+    protected $doiService;
+    protected $LaudatioUtils;
+
+     /**
+     * Holds xml representation of document information to be processed.
+     *
+     * @var \DomDocument  Defaults to null.
+     */
+    protected $xml = null;
+     /**
+     * Holds the stylesheet for the transformation.
+     *
+     * @var \DomDocument  Defaults to null.
+     */
+    protected $xslt = null;
+
+    /**
+     * Holds the xslt processor.
+     *
+     * @var \XSLTProcessor  Defaults to null.
+     */
+    protected $proc = null;
+
+    /**
+     * DOIController constructor.
+     * @param DoiInterface $DOIService
+     */
+    public function __construct(DoiInterface $DoiClient)
+    {
+        $this->doiClient = $DoiClient;
+       
+        $this->xml = new \DomDocument();
+        $this->proc = new \XSLTProcessor();
+    }
+
+    /**
+     * Display a listing of the resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function index()
+    {
+        //
+    }
+
+    /**
+     * Show the form for creating a new resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function create(Request $request)
+    {
+       //
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        $dataId = $request->input('publish_id');
+        
+        // Setup stylesheet
+        $this->loadStyleSheet(public_path() .'\prefixes\doi_datacite.xslt');
+
+       // set timestamp
+        $date = new \DateTime();
+        $unixTimestamp = $date->getTimestamp();
+        $this->proc->setParameter('', 'unixTimestamp', $unixTimestamp);
+
+        $prefix = config('tethys.datacite_prefix');
+        $this->proc->setParameter('', 'prefix', $prefix);
+
+        $repIdentifier = "tethys";
+        $this->proc->setParameter('', 'repIdentifier', $repIdentifier);
+
+        $this->xml->appendChild($this->xml->createElement('Datasets'));
+        $dataset = Dataset::where('publish_id', '=', $dataId)->firstOrFail();
+        if (is_null($dataset)) {
+            throw new OaiModelException('Dataset is not available for registering DOI!', OaiModelError::NORECORDSMATCH);
+        }
+        $dataset->fetchValues();
+        $xmlModel = new \App\Library\Xml\XmlModel();
+        $xmlModel->setModel($dataset);
+        $xmlModel->excludeEmptyFields();
+        $cache = ($dataset->xmlCache) ? $dataset->xmlCache : new \App\Models\XmlCache();
+        $xmlModel->setXmlCache($cache);
+        $domNode = $xmlModel->getDomDocument()->getElementsByTagName('Rdr_Dataset')->item(0);
+        $node = $this->xml->importNode($domNode, true);
+        $this->addSpecInformation($node, 'data-type:' . $dataset->type);
+
+        $this->xml->documentElement->appendChild($node);
+        $xmlMeta = $this->proc->transformToXML($this->xml);
+        Log::alert($xmlMeta);
+       //create doiValue and correspunfing landingpage of tehtys
+        $doiValue = $prefix . '/tethys.' . $dataset->publish_id;
+        $appUrl = config('app.url');
+        $landingPageUrl = $appUrl . "/dataset/" . $dataset->publish_id;
+        $response = $this->doiClient->registerDoi($doiValue, $xmlMeta, $landingPageUrl);
+        if ($response->getStatusCode() == 201) {
+            $doi = new DatasetIdentifier();
+            $doi['value'] = $doiValue;
+            $doi['dataset_id'] = $dataset->id;
+            $doi['type'] = "doi";
+            $doi['status'] = "registered";
+            $doi['registration_ts'] = now();
+            // $doi->save();
+        }
+    }
+
+    /**
+     * Display the specified resource.
+     *
+     * @param  \App\Models\DatasetIdentifier  $doi
+     * @return \Illuminate\Http\Response
+     */
+    public function show(DatasetIdentifier $doi)
+    {
+        //
+    }
+
+    /**
+     * Show the form for editing the specified resource.
+     *
+     * @param  \App\Models\DatasetIdentifier  $doi
+     * @return \Illuminate\Http\Response
+     */
+    public function edit(DatasetIdentifier $doi)
+    {
+        //
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  \App\Models\DatasetIdentifier  $doi
+     * @return \Illuminate\Http\Response
+     */
+    public function update(Request $request, DatasetIdentifier $doi)
+    {
+        //
+    }
+
+    /**
+     * Remove the specified resource from storage.
+     *
+     * @param  \App\Models\DatasetIdentifier  $doi
+     * @return \Illuminate\Http\Response
+     */
+    public function destroy(DatasetIdentifier $doi)
+    {
+        //
+    }
+
+   
+
+    
+    /**
+     * Load an xslt stylesheet.
+     *
+     * @return void
+     */
+    private function loadStyleSheet($stylesheet)
+    {
+        $this->xslt = new \DomDocument;
+        $this->xslt->load($stylesheet);
+        $this->proc->importStyleSheet($this->xslt);
+        if (isset($_SERVER['HTTP_HOST'])) {
+            $this->proc->setParameter('', 'host', $_SERVER['HTTP_HOST']);
+        }
+        //$this->proc->setParameter('', 'server', $this->getRequest()->getBaseUrl());
+    }
+
+    private function addSpecInformation(\DOMNode $document, $information)
+    {
+        $setSpecAttribute = $this->xml->createAttribute('Value');
+        $setSpecAttributeValue = $this->xml->createTextNode($information);
+        $setSpecAttribute->appendChild($setSpecAttributeValue);
+
+        $setSpecElement = $this->xml->createElement('SetSpec');
+        //$setSpecElement =new \DOMElement("SetSpec");
+        $setSpecElement->appendChild($setSpecAttribute);
+        $document->appendChild($setSpecElement);
+    }
+}