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[Rdfapi-php-svn] SF.net SVN: rdfapi-php: [547] trunk/rdfapi-php
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From: <p_f...@us...> - 2007-11-14 09:45:43
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Revision: 547
http://rdfapi-php.svn.sourceforge.net/rdfapi-php/?rev=547&view=rev
Author: p_frischmuth
Date: 2007-11-14 01:45:39 -0800 (Wed, 14 Nov 2007)
Log Message:
-----------
[added] initial version of a json parser
[added] loadFromString method in Model class, in order to easily load statements from strings (yet only json is supported)
[added] test class for new json parser and initial test routine
[modified] added constant PACKAGE_SYNTAX_JSON to constants.php
[added] SyntaxJSON package in order to load json parser dynamically
[propset] added svn:keywords for new file (Id)
Modified Paths:
--------------
trunk/rdfapi-php/api/constants.php
trunk/rdfapi-php/api/model/Model.php
Added Paths:
-----------
trunk/rdfapi-php/api/syntax/JsonParser.php
trunk/rdfapi-php/api/syntax/SyntaxJSON.php
trunk/rdfapi-php/test/unit/Syntax/jsonParser_test.php
Modified: trunk/rdfapi-php/api/constants.php
===================================================================
--- trunk/rdfapi-php/api/constants.php 2007-11-06 14:26:06 UTC (rev 546)
+++ trunk/rdfapi-php/api/constants.php 2007-11-14 09:45:39 UTC (rev 547)
@@ -31,6 +31,7 @@
define('PACKAGE_DBASE','model/DBase.php');
define('PACKAGE_SYNTAX_RDF','syntax/SyntaxRDF.php');
define('PACKAGE_SYNTAX_N3','syntax/SyntaxN3.php');
+define('PACKAGE_SYNTAX_JSON','syntax/SyntaxJSON.php');
define('PACKAGE_SYNTAX_GRDDL','syntax/SyntaxGRDDL.php');
define('PACKAGE_VOCABULARY','vocabulary/Vocabulary.php');
define('PACKAGE_RDQL','rdql/RDQL.php');
Modified: trunk/rdfapi-php/api/model/Model.php
===================================================================
--- trunk/rdfapi-php/api/model/Model.php 2007-11-06 14:26:06 UTC (rev 546)
+++ trunk/rdfapi-php/api/model/Model.php 2007-11-14 09:45:39 UTC (rev 547)
@@ -133,8 +133,27 @@
$this->setBaseURI($temp->getBaseURI());
}
+ /**
+ * This method takes a string conatining data and adds the parsed data to this model.
+ *
+ * @param string $str The string containing the data to be parsed and loaded.
+ * @param type $type The type of the string, currently only 'json' is supported.
+ */
+ function loadFromString($str, $type) {
+
+ switch ($type) {
+ case 'json':
+ include_once(RDFAPI_INCLUDE_DIR.PACKAGE_SYNTAX_JSON);
+ $parser = new JsonParser();
+ break;
+ default:
+ trigger_error('(class: Model; method: loadFromString): type ' . $type . 'is currently not supported',
+ E_USER_ERROR);
+ }
+
+ $parser->generateModelFromString($str, $this);
+ }
-
/**
* Adds a statement from another model to this model.
* If the statement to be added contains a blankNode with an identifier
Added: trunk/rdfapi-php/api/syntax/JsonParser.php
===================================================================
--- trunk/rdfapi-php/api/syntax/JsonParser.php (rev 0)
+++ trunk/rdfapi-php/api/syntax/JsonParser.php 2007-11-14 09:45:39 UTC (rev 547)
@@ -0,0 +1,52 @@
+<?php
+/**
+ * This class provides capabilities to parse json encoded rdf models.
+ *
+ * @package syntax
+ * @author Philipp Frischmuth <ph...@fr...>
+ * @version $Id$
+ */
+class JsonParser extends Object {
+
+ /**
+ * This method takes a json encoded rdf-model and a reference to aa (usually empty) MemModel, parses the json
+ * string and adds the statements to the given MemModel.
+ *
+ * @param string $jsonString The string that contains the rdf model, encoded as a json-string.
+ * @param MemModel $model A reference to the model, where to add the statements, usually an empty MemModel.
+ */
+ public function generateModelFromString($jsonString, $model) {
+
+ $jsonModel = array();
+ $jsonModel = json_decode($jsonString, true);
+
+ // throws an excpetion if json model was corrupt
+ if (!is_array($jsonModel)) {
+ throw new Exception('error in json string');
+ }
+
+ foreach ($jsonModel as $subject=>$remain) {
+ foreach ($remain as $predicate=>$object) {
+ $s = (strpos($subject, '_') === 0) ? new BlankNode(substr($subject, 2)) : new Resource($subject);
+ $p = new Resource($predicate);
+
+ foreach ($object as $obj) {
+ if ($obj['type'] === 'uri') {
+ $o = new Resource($obj['value']);
+ } else if ($obj['type'] === 'bnode') {
+ $o = new BlankNode(substr($obj['value'], 2));
+ } else {
+ $dtype = (isset($obj['datatype'])) ? $obj['datatype'] : '';
+ $lang = (isset($obj['lang'])) ? $obj['lang'] : '';
+
+ $o = new Literal($obj['value'], $lang);
+ $o->setDatatype($dtype);
+ }
+
+ $model->add(new Statement($s, $p, $o));
+ }
+ }
+ }
+ }
+}
+?>
Property changes on: trunk/rdfapi-php/api/syntax/JsonParser.php
___________________________________________________________________
Name: svn:keywords
+ Id
Added: trunk/rdfapi-php/api/syntax/SyntaxJSON.php
===================================================================
--- trunk/rdfapi-php/api/syntax/SyntaxJSON.php (rev 0)
+++ trunk/rdfapi-php/api/syntax/SyntaxJSON.php 2007-11-14 09:45:39 UTC (rev 547)
@@ -0,0 +1,5 @@
+<?php
+// Include Syntax classes
+// $Id$
+require_once( RDFAPI_INCLUDE_DIR . 'syntax/JsonParser.php' );
+?>
\ No newline at end of file
Property changes on: trunk/rdfapi-php/api/syntax/SyntaxJSON.php
___________________________________________________________________
Name: svn:keywords
+ Id
Added: trunk/rdfapi-php/test/unit/Syntax/jsonParser_test.php
===================================================================
--- trunk/rdfapi-php/test/unit/Syntax/jsonParser_test.php (rev 0)
+++ trunk/rdfapi-php/test/unit/Syntax/jsonParser_test.php 2007-11-14 09:45:39 UTC (rev 547)
@@ -0,0 +1,119 @@
+<?php
+require_once RDFAPI_INCLUDE_DIR.PACKAGE_SYNTAX_JSON;
+/**
+ * Tests the JsonParser
+ *
+ * @version $Id $
+ * @author Philipp Frischmuth <ph...@fr...>
+ *
+ * @package unittests
+ * @access public
+ */
+
+class testJsonParser extends UnitTestCase
+{
+ var $modelString;
+
+ function testJsonParser() {
+ $this->UnitTestCase();
+
+ GLOBAL $short_datatype;
+
+ $this->modelString = '{ "http://example.org/about" : {
+ "http://purl.org/dc/elements/1.1/creator" : [
+ {
+ "value" : "Anna Wilder",
+ "type" : "literal"
+ }
+ ],
+ "http://purl.org/dc/elements/1.1/title" : [
+ {
+ "value" : "Annas Homepage",
+ "type" : "literal",
+ "lang" : "en"
+ }
+ ],
+ "http://xmlns.com/foaf/0.1/maker" : [
+ {
+ "value" : "_:person",
+ "type" : "bnode"
+ }
+ ],
+ "http://purl.org/dc/elements/1.1/title2" : [
+ {
+ "value" : "Anns HP",
+ "type" : "literal",
+ "lang" : "en",
+ "datatype" : "' . $short_datatype['STRING'] . '"
+ }
+ ]
+ },
+ "_:person" : {
+ "http://xmlns.com/foaf/0.1/homepage" : [
+ {
+ "value" : "http://example.org/about",
+ "type" : "uri"
+ }
+ ]
+ }}';
+ }
+
+ function testGenerateModelFromString() {
+
+ $parser = new JsonParser();
+ $model = new MemModel('http://example.com/');
+
+ try {
+ $parser->generateModelFromString($this->modelString, $model);
+ } catch (Exception $e) {
+ $this->fail($e->getMessage());
+ }
+
+ GLOBAL $short_datatype;
+ $model2 = new MemModel('http://example.com/');
+
+ // Ceate new statements and add them to the model
+ $statement1 = new Statement(new Resource('http://example.org/about'),
+ new Resource('http://purl.org/dc/elements/1.1/creator'),
+ new Literal('Anna Wilder'));
+
+ $statement2 = new Statement(new Resource('http://example.org/about'),
+ new Resource("http://purl.org/dc/elements/1.1/title"),
+ new Literal('Annas Homepage', 'en'));
+
+ $statement3 = new Statement(new Resource('http://example.org/about'),
+ new Resource('http://xmlns.com/foaf/0.1/maker'),
+ new BlankNode('person'));
+
+ $statement4 = new Statement(new BlankNode('person'),
+ new Resource("http://xmlns.com/foaf/0.1/homepage"),
+ new Resource('http://example.org/about'));
+
+ $statement5 = new Statement(new Resource('http://example.org/about'),
+ new Resource("http://purl.org/dc/elements/1.1/title2"),
+ new Literal('Anns HP', 'en', $short_datatype['STRING']));
+
+ $statement6 = new Statement(new Resource('http://example.org/about'),
+ new Resource("http://purl.org/dc/elements/1.1/title2"),
+ new Literal('Anns HP', 'en', $short_datatype['INTEGER']));
+
+
+ $model2->add($statement1);
+ $model2->add($statement2);
+ $model2->add($statement3);
+ $model2->add($statement4);
+ $model2->add($statement5);
+
+ $this->assertTrue($model->containsAll($model2));
+
+ $model2->remove($statement5);
+ $model2->add($statement6);
+
+ $this->assertFalse($model->containsAll($model2));
+
+#echo "<pre>";
+#print_r($model2);
+#echo "</pre>";
+ }
+}
+?>
Property changes on: trunk/rdfapi-php/test/unit/Syntax/jsonParser_test.php
___________________________________________________________________
Name: svn:keywords
+ Id
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