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lib/pkp/classes/oai/OAIMetadataFormat.php

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+<?php
+
+/**
+ * @file classes/oai/OAIMetadataFormat.php
+ *
+ * Copyright (c) 2014-2021 Simon Fraser University
+ * Copyright (c) 2000-2021 John Willinsky
+ * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
+ *
+ * @class OAIMetadataFormat
+ *
+ * @ingroup oai
+ *
+ * @see OAI
+ *
+ * @brief OAI-PMH metadata format
+ */
+
+namespace PKP\oai;
+
+/**
+ * OAI metadata format.
+ * Used to generated metadata XML according to a specified schema.
+ */
+class OAIMetadataFormat
+{
+    /** @var string metadata prefix */
+    public $prefix;
+
+    /** @var string XML schema */
+    public $schema;
+
+    /** @var string XML namespace */
+    public $namespace;
+
+    /**
+     * Constructor.
+     */
+    public function __construct($prefix, $schema, $namespace)
+    {
+        $this->prefix = $prefix;
+        $this->schema = $schema;
+        $this->namespace = $namespace;
+    }
+
+    public function getLocalizedData($data, $locale)
+    {
+        foreach ($data as $element) {
+            if (isset($data[$locale])) {
+                return $data[$locale];
+            }
+        }
+        return '';
+    }
+
+    /**
+     * Retrieve XML-formatted metadata for the specified record.
+     *
+     * @param OAIRecord $record
+     * @param string $format OAI metadata prefix
+     *
+     * @return string
+     */
+    public function toXml($record, $format = null)
+    {
+        return '';
+    }
+}
+
+if (!PKP_STRICT_MODE) {
+    class_alias('\PKP\oai\OAIMetadataFormat', '\OAIMetadataFormat');
+}