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[Rdfapi-php-svn] SF.net SVN: rdfapi-php: [552] trunk/rdfapi-php
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From: <p_f...@us...> - 2007-11-23 09:12:14
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Revision: 552
http://rdfapi-php.svn.sourceforge.net/rdfapi-php/?rev=552&view=rev
Author: p_frischmuth
Date: 2007-11-23 01:12:11 -0800 (Fri, 23 Nov 2007)
Log Message:
-----------
[added] a serializer class for rdf/json format
[added] a unit test class for the json serializer in order to test the serialize method
[propset] set svn:keyword Id on new files
[modified] added the new test classes to the allTest environment
Modified Paths:
--------------
trunk/rdfapi-php/api/syntax/SyntaxJSON.php
trunk/rdfapi-php/test/unit/allTests.php
Added Paths:
-----------
trunk/rdfapi-php/api/syntax/JsonSerializer.php
trunk/rdfapi-php/test/unit/Syntax/jsonSerializer_test.php
Added: trunk/rdfapi-php/api/syntax/JsonSerializer.php
===================================================================
--- trunk/rdfapi-php/api/syntax/JsonSerializer.php (rev 0)
+++ trunk/rdfapi-php/api/syntax/JsonSerializer.php 2007-11-23 09:12:11 UTC (rev 552)
@@ -0,0 +1,137 @@
+<?php
+/**
+ * This class provides capabilities to serialize MemModels to json strings.
+ *
+ * @package syntax
+ * @author Philipp Frischmuth <ph...@fr...>
+ * @version $Id:$
+ */
+class JsonSerializer extends Object {
+
+ /**
+ * This method takes a MemModel object ad parameter and serializes all contained triples to rdf/json format.
+ *
+ * @see http://n2.talis.com/wiki/RDF_JSON_Specification#rdf.2Fjson
+ * @param MemModel $model
+ * @return string Returns a string containing the serialized model.
+ */
+ public function serialize(MemModel $model) {
+
+ // create the root json object (root object)
+ $jsonString = '{';
+ $subjects = array();
+
+ // sort triples by subject
+ foreach ($model->triples as $triple) {
+ $subjects[$triple->toStringSubject()][] = $triple;
+ }
+
+ // sort alphabetically
+ ksort($subjects);
+
+ // echo '<pre>';
+ // print_r($subjects);
+ // echo '</pre>';
+
+ // triples are sorted by subject now, each key is a subject uri, containing all triples with this subject uri
+ $i = 0;
+ foreach ($subjects as $predicatesArray) {
+ $predicates = array();
+
+ if ($i > 0) {
+ $jsonString .= ',';
+ }
+ $i++;
+
+ $subj = $predicatesArray[0]->getSubject();
+
+ // add special _: sequence for blank node only
+ if ($subj instanceof BlankNode) {
+ $jsonString .= PHP_EOL . ' "_:' . $subj->getLabel() . '" : ';
+ } else {
+ $jsonString .= PHP_EOL . ' "' . $subj->getLabel() . '" : ';
+ }
+
+
+
+ // create a json object for each subject (subject object)
+ $jsonString .= '{';
+
+ // sort triples with current subject by predicate
+ foreach ($predicatesArray as $triple) {
+ $predicates[$triple->toStringPredicate()][] = $triple;
+ }
+
+ // sort alphabetically
+ ksort($predicates);
+
+ $j = 0;
+ foreach ($predicates as $valueArray) {
+
+ if ($j > 0) {
+ $jsonString .= ',';
+ }
+ $j++;
+
+ $jsonString .= PHP_EOL . ' "' . $valueArray[0]->getLabelPredicate() . '" : ';
+
+ // create a json array (value array)
+ $jsonString .= '[';
+
+ $k = 0;
+ foreach ($valueArray as $triple) {
+ if ($k > 0) {
+ $jsonString .= ',';
+ }
+ $k++;
+
+ // create json value object (value object)
+ $jsonString .= PHP_EOL . ' {';
+
+ $obj = $triple->getObject();
+
+ // add special _: sequence for blank nodes only
+ if ($obj instanceof BlankNode) {
+ $jsonString .= PHP_EOL . ' "value" : "_:' . $obj->getLabel() . '",';
+ } else {
+ $jsonString .= PHP_EOL . ' "value" : "' . $obj->getLabel() . '",';
+ }
+
+ // add type of object
+ if ($obj instanceof Literal) {
+ $jsonString .= PHP_EOL . ' "type" : "literal"';
+ } else if ($obj instanceof BlankNode) {
+ $jsonString .= PHP_EOL . ' "type" : "bnode"';
+ } else {
+ $jsonString .= PHP_EOL . ' "type" : "uri"';
+ }
+
+ if ($obj instanceof Literal) {
+ if ($obj->getLanguage() != '') {
+ $jsonString .= ',' . PHP_EOL . ' "lang" : "' . $obj->getLanguage() . '"';
+ }
+ if ($obj->getDatatype() != '') {
+ $jsonString .= ',' . PHP_EOL . ' "datatype" : "' . $obj->getDatatype() . '"';
+ }
+
+ }
+
+ // close value object
+ $jsonString .= PHP_EOL . ' }';
+ }
+
+ // close the value array
+ $jsonString .= PHP_EOL . ' ]';
+ }
+
+ // close the json object (for the subject) (subject object)
+ $jsonString .= PHP_EOL . ' }';
+ }
+
+ // close root json object (root object)
+ $jsonString .= PHP_EOL . '}';
+
+ return $jsonString;
+ }
+}
+?>
Property changes on: trunk/rdfapi-php/api/syntax/JsonSerializer.php
___________________________________________________________________
Name: svn:keywords
+ Id
Modified: trunk/rdfapi-php/api/syntax/SyntaxJSON.php
===================================================================
--- trunk/rdfapi-php/api/syntax/SyntaxJSON.php 2007-11-22 19:58:35 UTC (rev 551)
+++ trunk/rdfapi-php/api/syntax/SyntaxJSON.php 2007-11-23 09:12:11 UTC (rev 552)
@@ -2,4 +2,5 @@
// Include Syntax classes
// $Id$
require_once( RDFAPI_INCLUDE_DIR . 'syntax/JsonParser.php' );
+require_once( RDFAPI_INCLUDE_DIR . 'syntax/JsonSerializer.php' );
?>
\ No newline at end of file
Added: trunk/rdfapi-php/test/unit/Syntax/jsonSerializer_test.php
===================================================================
--- trunk/rdfapi-php/test/unit/Syntax/jsonSerializer_test.php (rev 0)
+++ trunk/rdfapi-php/test/unit/Syntax/jsonSerializer_test.php 2007-11-23 09:12:11 UTC (rev 552)
@@ -0,0 +1,57 @@
+<?php
+require_once RDFAPI_INCLUDE_DIR.PACKAGE_SYNTAX_JSON;
+/**
+ * Tests the JsonSerializer
+ *
+ * @version $Id $
+ * @author Philipp Frischmuth <ph...@fr...>
+ *
+ * @package unittests
+ * @access public
+ */
+class testJsonSerializer extends UnitTestCase {
+
+ var $model;
+
+ function testJsonSerializer() {
+
+ $this->model = new MemModel();
+
+ $res1 = new Resource('http://example.com/res1');
+ $res2 = new Resource('http://example.com/res2');
+ $res3 = new Resource('http://example.com/res3');
+
+ $bn1 = new BlankNode('test1');
+ $bn2 = new BlankNode('test2');
+
+ $literal1 = new Literal('test literal');
+ $literal2 = new Literal('test literal', 'en');
+ $literal3 = new Literal('test literal', 'de', 'http://www.w3.org/2001/XMLSchema#string');
+
+ $stm1 = new Statement($res1, $res2, $res3);
+ $stm2 = new Statement($res1, $res2, $bn1);
+ $stm3 = new Statement($res1, $res2, $literal1);
+ $stm4 = new Statement($res1, $res2, $literal2);
+ $stm5 = new Statement($res1, $res2, $literal3);
+ $stm6 = new Statement($bn1, $res2, $bn2);
+
+ $this->model->add($stm1);
+ $this->model->add($stm2);
+ $this->model->add($stm3);
+ $this->model->add($stm4);
+ $this->model->add($stm5);
+ $this->model->add($stm6);
+ }
+
+ function testSerialize() {
+
+ $ser = new JsonSerializer();
+
+ $jsonString = $ser->serialize($this->model);
+ $memModel = new MemModel();
+ $memModel->loadFromString($jsonString, 'json');
+
+ $this->assertTrue($this->model->equals($memModel));
+ }
+}
+?>
Property changes on: trunk/rdfapi-php/test/unit/Syntax/jsonSerializer_test.php
___________________________________________________________________
Name: svn:keywords
+ Id
Modified: trunk/rdfapi-php/test/unit/allTests.php
===================================================================
--- trunk/rdfapi-php/test/unit/allTests.php 2007-11-22 19:58:35 UTC (rev 551)
+++ trunk/rdfapi-php/test/unit/allTests.php 2007-11-23 09:12:11 UTC (rev 552)
@@ -119,6 +119,8 @@
$test_syntax->addTestFile(RDFAPI_TEST_INCLUDE_DIR. 'test/unit/Syntax/n3Serializer_test.php');
$test_syntax->addTestFile(RDFAPI_TEST_INCLUDE_DIR. 'test/unit/Syntax/rdf_Parser_tests.php');
$test_syntax->addTestFile(RDFAPI_TEST_INCLUDE_DIR. 'test/unit/Syntax/rdf_Serializer_tests.php');
+$test_syntax->addTestFile(RDFAPI_TEST_INCLUDE_DIR. 'test/unit/Syntax/jsonParser_test.php');
+$test_syntax->addTestFile(RDFAPI_TEST_INCLUDE_DIR. 'test/unit/Syntax/jsonSerializer_test.php');
//$test_syntax->addTestFile(RDFAPI_TEST_INCLUDE_DIR. 'test/unit/rdf/rdf_test_cases.php');
$test_syntax->run(new $runnerClass());
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