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[yaffs-website] / vendor / easyrdf / easyrdf / lib / EasyRdf / Parser / Rapper.php

diff --git a/vendor/easyrdf/easyrdf/lib/EasyRdf/Parser/Rapper.php b/vendor/easyrdf/easyrdf/lib/EasyRdf/Parser/Rapper.php
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+<?php
+
+/**
+ * EasyRdf
+ *
+ * LICENSE
+ *
+ * Copyright (c) 2009-2013 Nicholas J Humfrey.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author 'Nicholas J Humfrey" may be used to endorse or
+ *    promote products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @package    EasyRdf
+ * @copyright  Copyright (c) 2009-2013 Nicholas J Humfrey
+ * @license    http://www.opensource.org/licenses/bsd-license.php
+ */
+
+/**
+ * Class to parse RDF using the 'rapper' command line tool.
+ *
+ * @package    EasyRdf
+ * @copyright  Copyright (c) 2009-2013 Nicholas J Humfrey
+ * @license    http://www.opensource.org/licenses/bsd-license.php
+ */
+class EasyRdf_Parser_Rapper extends EasyRdf_Parser_Json
+{
+    private $rapperCmd = null;
+
+    const MINIMUM_RAPPER_VERSION = '1.4.17';
+
+    /**
+     * Constructor
+     *
+     * @param string $rapperCmd Optional path to the rapper command to use.
+     * @return object EasyRdf_Parser_Rapper
+     */
+    public function __construct($rapperCmd = 'rapper')
+    {
+        $result = exec("$rapperCmd --version 2>/dev/null", $output, $status);
+        if ($status != 0) {
+            throw new EasyRdf_Exception(
+                "Failed to execute the command '$rapperCmd': $result"
+            );
+        } elseif (version_compare($result, self::MINIMUM_RAPPER_VERSION) < 0) {
+            throw new EasyRdf_Exception(
+                "Version ".self::MINIMUM_RAPPER_VERSION." or higher of rapper is required."
+            );
+        } else {
+            $this->rapperCmd = $rapperCmd;
+        }
+    }
+
+    /**
+      * Parse an RDF document into an EasyRdf_Graph
+      *
+      * @param object EasyRdf_Graph $graph   the graph to load the data into
+      * @param string               $data    the RDF document data
+      * @param string               $format  the format of the input data
+      * @param string               $baseUri the base URI of the data being parsed
+      * @return integer             The number of triples added to the graph
+      */
+    public function parse($graph, $data, $format, $baseUri)
+    {
+        parent::checkParseParams($graph, $data, $format, $baseUri);
+
+        $json = EasyRdf_Utils::execCommandPipe(
+            $this->rapperCmd,
+            array(
+                '--quiet',
+                '--input', $format,
+                '--output', 'json',
+                '--ignore-errors',
+                '--input-uri', $baseUri,
+                '--output-uri', '-', '-'
+            ),
+            $data
+        );
+
+        // Parse in the JSON
+        return parent::parse($graph, $json, 'json', $baseUri);
+    }
+}