Added support for getting datastructures and marked get codes as unsupported

Author: juangabreil

src/Sdmx/api/client/rest/DotStatClient.php

@@ -10,6 +10,7 @@
 use Sdmx\api\entities\DataflowStructure;
 use Sdmx\api\entities\DsdIdentifier;
 use Sdmx\api\entities\PortableTimeSeries;
+use Sdmx\api\exceptions\UnsupportedOperationException;
 use Sdmx\api\parser\DataStructureParser;
 
 class DotStatClient implements SdmxClient
@@ -86,19 +87,23 @@ public function getDataflow($dataflow, $agency, $version)
      */
     public function getDataflowStructure(DsdIdentifier $dsd, $full = false)
     {
-        // TODO: Implement getDataflowStructure() method.
+        $url = $this->queryBuilder->getDsdQuery($dsd->getId(), $dsd->getAgency(), $dsd->getVersion(), $full);
+        $response = $this->httpClient->get($url);
+        $dataflowStructures = $this->dataStructureParser->parse($response);
+
+        return count($dataflowStructures) > 0 ? $dataflowStructures[0] : null;
     }
 
     /**
      * Gets all the codes from this provider for a given codelist.
      * @param string $codelist
      * @param string $agency
      * @param string $version
-     * @return string[]
+     * @return \string[]
      */
     public function getCodes($codelist, $agency, $version)
     {
-        // TODO: Implement getCodes() method.
+        throw new UnsupportedOperationException('This method is not supported by dot stat api\'s');
     }
 
     /**

src/Sdmx/api/entities/DataflowStructure.php

@@ -10,6 +10,9 @@
  */
 class DataflowStructure
 {
+
+    const DEFAULT_MEASURE = 'OBS_VALUE';
+
     /**
      * @var string $id
      */
@@ -36,6 +39,11 @@ class DataflowStructure
      */
     private $dimensions;
 
+    /**
+     * @var string $measure
+     */
+    private $measure = self::DEFAULT_MEASURE;
+
     /**
      * DataflowStructure constructor.
      */
@@ -204,10 +212,19 @@ function __toString()
         return $str;
     }
 
-
+    /**
+     * @return string
+     */
     public function getMeasure()
     {
-        return 'OBS_VALUE';
+        return $this->measure;
+    }
+
+    /**
+     * @param string $measure
+     */
+    public function setMeasure($measure){
+        $this->measure = $measure;
     }
 
 

src/Sdmx/api/exceptions/UnsupportedOperationException.php

@@ -0,0 +1,9 @@
+<?php
+
+namespace Sdmx\api\exceptions;
+
+
+class UnsupportedOperationException extends \RuntimeException
+{
+
+}

src/Sdmx/api/parser/v20/V20CodelistParser.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace Sdmx\api\parser\v20;
+
+
+use Sdmx\api\parser\CodelistParser;
+use SimpleXMLElement;
+
+class V20CodelistParser implements CodelistParser
+{
+
+    /**
+     * Parses codelist into a hash indexed by codelist name and containing an array of codes
+     * @param SimpleXMLElement $data
+     * @return string[]
+     */
+    public function parseCodesFromNode(SimpleXMLElement $data)
+    {
+        $result = [];
+
+        $codes = $data->xpath('./*[name()="Code"]');
+
+        foreach ($codes as $code){
+            $name = $code->xpath('./*[name()="Description"][@xml:lang="en"]');
+            if(count($name) > 0){
+                $result[(string) $code['value']] = (string)$name[0];
+            }
+        }
+
+        return $result;
+    }
+
+    /**
+     * Parses codelist into a hash indexed by codelist name and containing an array of codes
+     * @param string $data
+     * @return string[]
+     */
+    public function parseCodes($data)
+    {
+        $xml = new SimpleXMLElement($data);
+        return $this->parseCodesFromNode($xml->xpath('//message:CodeLists/*[name()="CodeList"]')[0]);
+    }
+}