function parse($path, $data = '')
{
$this->state = 0;
/* reader */
if (!$this->v('reader')) {
ARC2::inc('Reader');
$this->reader =& new ARC2_Reader($this->a, $this);
}
$this->reader->setAcceptHeader('Accept: sparql-results+xml; q=0.9, */*; q=0.1');
$this->reader->activate($path, $data);
$this->x_base = isset($this->a['base']) && $this->a['base'] ? $this->a['base'] : $this->reader->base;
/* xml parser */
$this->initXMLParser();
/* parse */
$first = true;
while ($d = $this->reader->readStream()) {
if (!xml_parse($this->xml_parser, $d, false)) {
$error_str = xml_error_string(xml_get_error_code($this->xml_parser));
$line = xml_get_current_line_number($this->xml_parser);
$this->tmp_error = 'XML error: "' . $error_str . '" at line ' . $line . ' (parsing as ' . $this->getEncoding() . ')';
return $this->addError($this->tmp_error);
}
}
$this->target_encoding = xml_parser_get_option($this->xml_parser, XML_OPTION_TARGET_ENCODING);
xml_parser_free($this->xml_parser);
$this->reader->closeStream();
return $this->done();
}
function runQuery($infos, $keep_bnode_ids = 0)
{
$this->infos = $infos;
$con = $this->store->getDBCon();
ARC2::inc('StoreDumper');
$d = new ARC2_StoreDumper($this->a, $this->store);
$d->dumpSPOG();
return 1;
}
function parse($path, $data = '', $iso_fallback = false)
{
/* reader */
if (!$this->v('reader')) {
ARC2::inc('Reader');
$this->reader = new ARC2_Reader($this->a, $this);
}
$this->reader->setAcceptHeader('Accept: application/rdf+xml; q=0.9, */*; q=0.1');
$this->reader->activate($path, $data);
$this->x_base = isset($this->a['base']) && $this->a['base'] ? $this->a['base'] : $this->reader->base;
/* xml parser */
$this->initXMLParser();
/* parse */
$first = true;
while ($d = $this->reader->readStream()) {
if (!$this->keep_time_limit) {
@set_time_limit($this->v('time_limit', 60, $this->a));
}
if ($iso_fallback && $first) {
$d = '<?xml version="1.0" encoding="ISO-8859-1"?>' . "\n" . preg_replace('/^\\<\\?xml [^\\>]+\\?\\>\\s*/s', '', $d);
$first = false;
}
preg_match_all('/<<<(.+?\\s*?)*?>>>/', $d, $res);
if (isset($res)) {
foreach ($res[0] as $templ) {
$key = 'template_' . count($this->templates);
$this->templates[$key] = str_replace('<<<', '', str_replace('>>>', '', $templ));
$d = str_replace($templ, $key, $d);
}
}
if (!xml_parse($this->xml_parser, $d, false)) {
$error_str = xml_error_string(xml_get_error_code($this->xml_parser));
$line = xml_get_current_line_number($this->xml_parser);
$this->tmp_error = 'XML error: "' . $error_str . '" at line ' . $line . ' (parsing as ' . $this->getEncoding() . ')';
if (!$iso_fallback && preg_match("/Invalid character/i", $error_str)) {
xml_parser_free($this->xml_parser);
unset($this->xml_parser);
$this->reader->closeStream();
$this->__init();
$this->encoding = 'ISO-8859-1';
unset($this->xml_parser);
unset($this->reader);
return $this->parse($path, $data, true);
} else {
return $this->addError($this->tmp_error);
}
}
}
$this->target_encoding = xml_parser_get_option($this->xml_parser, XML_OPTION_TARGET_ENCODING);
xml_parser_free($this->xml_parser);
$this->reader->closeStream();
unset($this->reader);
return $this->done();
}
public function setNegotiators()
{
if ($handle = opendir('./')) {
while (false !== ($file = readdir($handle))) {
if (substr($file, 0, 12) == 'negotiators_' && $file != 'negotiators_DataNegotiatorPlugin' && substr($file, -1) != '~') {
ARC2::inc(rtrim($file, '.php'));
$this->negotiators[] = rtrim($file, '.php');
}
}
closedir($handle);
}
}
public function testInc()
{
$actual = ARC2::inc('Class');
$this->assertNotEquals(0, $actual);
$actual = ARC2::inc('RDFParser');
$this->assertNotEquals(0, $actual);
$actual = ARC2::inc('ARC2_RDFParser');
$this->assertNotEquals(0, $actual);
$actual = ARC2::inc('Foo');
$this->assertEquals(0, $actual);
$actual = ARC2::inc('Vendor_Foo');
$this->assertEquals(0, $actual);
}
function runQuery($infos, $keep_bnode_ids = 0)
{
$this->infos = $infos;
$con = $this->store->getDBCon();
/* insert */
if (!$this->v('pattern', array(), $this->infos['query'])) {
return $this->store->insert($this->infos['query']['construct_triples'], $this->infos['query']['target_graph'], $keep_bnode_ids);
} else {
ARC2::inc('StoreConstructQueryHandler');
$h =& new ARC2_StoreConstructQueryHandler($this->a, $this->store);
$sub_r = $h->runQuery($this->infos);
return $this->store->insert($sub_r, $this->infos['query']['target_graph'], $keep_bnode_ids);
}
}
function parse($path, $data = '', $iso_fallback = false)
{
$this->nodes = array();
$this->node_count = 0;
$this->level = 0;
/* reader */
if (!$this->v('reader')) {
ARC2::inc('Reader');
$this->reader = new ARC2_Reader($this->a, $this);
}
$this->reader->setAcceptHeader('Accept: application/xml; q=0.9, */*; q=0.1');
$this->reader->activate($path, $data);
$this->x_base = isset($this->a['base']) && $this->a['base'] ? $this->a['base'] : $this->reader->base;
$this->base = $this->x_base;
$this->doc_url = $this->reader->base;
/* xml parser */
$this->initXMLParser();
/* parse */
$first = true;
while ($d = $this->reader->readStream(1)) {
if ($iso_fallback && $first) {
$d = '<?xml version="1.0" encoding="ISO-8859-1"?>' . "\n" . preg_replace('/^\\<\\?xml [^\\>]+\\?\\>\\s*/s', '', $d);
}
if (!xml_parse($this->xml_parser, $d, false)) {
$error_str = xml_error_string(xml_get_error_code($this->xml_parser));
$line = xml_get_current_line_number($this->xml_parser);
if (!$iso_fallback && preg_match("/Invalid character/i", $error_str)) {
xml_parser_free($this->xml_parser);
unset($this->xml_parser);
$this->reader->closeStream();
unset($this->reader);
$this->__init();
$this->encoding = 'ISO-8859-1';
$this->initXMLParser();
return $this->parse($path, $data, true);
} else {
return $this->addError('XML error: "' . $error_str . '" at line ' . $line . ' (parsing as ' . $this->getEncoding() . ')');
}
}
$first = false;
}
$this->target_encoding = xml_parser_get_option($this->xml_parser, XML_OPTION_TARGET_ENCODING);
xml_parser_free($this->xml_parser);
$this->reader->closeStream();
unset($this->reader);
return $this->done();
}
function parse($path, $data = '')
{
/* reader */
if (!isset($this->reader)) {
ARC2::inc('Reader');
$this->reader =& new ARC2_Reader($this->a, $this);
}
$this->reader->activate($path, $data);
/* format detection */
$mappings = array('rdfxml' => 'RDFXML', 'turtle' => 'Turtle', 'sparqlxml' => 'SPOG', 'ntriples' => 'Turtle', 'html' => 'SemHTML', 'rss' => 'RSS', 'atom' => 'Atom', 'sgajson' => 'SGAJSON', 'cbjson' => 'CBJSON');
$format = $this->reader->getFormat();
if (!$format || !isset($mappings[$format])) {
return $this->addError('No parser available for "' . $format . '".');
}
/* format parser */
$suffix = $mappings[$format] . 'Parser';
ARC2::inc($suffix);
$cls = 'ARC2_' . $suffix;
$this->parser =& new $cls($this->a, $this);
$this->parser->setReader($this->reader);
return $this->parser->parse($path, $data);
}
function parse($path, $data = '')
{
$this->state = 0;
/* reader */
if (!$this->v('reader')) {
ARC2::inc('Reader');
$this->reader =& new ARC2_Reader($this->a, $this);
}
$this->reader->setAcceptHeader('Accept: application/json; q=0.9, */*; q=0.1');
$this->reader->activate($path, $data);
$this->x_base = isset($this->a['base']) && $this->a['base'] ? $this->a['base'] : $this->reader->base;
/* parse */
$doc = '';
while ($d = $this->reader->readStream()) {
$doc .= $d;
}
$this->reader->closeStream();
$doc = preg_replace('/^[^\\{]*(.*\\})[^\\}]*$/is', '\\1', $doc);
$this->unparsed_code = $doc;
list($this->struct, $rest) = $this->extractObject($doc);
return $this->done();
}
function runQuery($infos, $keep_bnode_ids = 0)
{
$this->infos = $infos;
$con = $this->store->getDBCon();
/* insert */
if (!$this->v('pattern', array(), $this->infos['query'])) {
$triples = $this->infos['query']['construct_triples'];
/* don't execute empty INSERTs as they trigger a LOAD on the graph URI */
if ($triples) {
return $this->store->insert($triples, $this->infos['query']['target_graph'], $keep_bnode_ids);
} else {
return array('t_count' => 0, 'load_time' => 0);
}
} else {
$keep_bnode_ids = 1;
ARC2::inc('StoreConstructQueryHandler');
$h = new ARC2_StoreConstructQueryHandler($this->a, $this->store);
$sub_r = $h->runQuery($this->infos);
if ($sub_r) {
return $this->store->insert($sub_r, $this->infos['query']['target_graph'], $keep_bnode_ids);
}
return array('t_count' => 0, 'load_time' => 0);
}
}
<?php
/*
homepage: http://arc.semsol.org/
license: http://arc.semsol.org/license
class: ARC2 DC Extractor
author: Benjamin Nowack
version: 2010-11-16
*/
ARC2::inc('RDFExtractor');
class ARC2_DcExtractor extends ARC2_RDFExtractor
{
function __construct($a, &$caller)
{
parent::__construct($a, $caller);
}
function __init()
{
parent::__init();
$this->a['ns']['dc'] = 'http://purl.org/dc/elements/1.1/';
}
/* */
function extractRDF()
{
$t_vals = array();
$t = '';
foreach ($this->nodes as $n) {
foreach (array('title', 'link', 'meta') as $tag) {
if ($n['tag'] == $tag) {
$m = 'extract' . ucfirst($tag);
function getComponent($name, $a = '')
{
ARC2::inc($name);
$prefix = 'ARC2';
if (preg_match('/^([^\\_]+)\\_(.+)$/', $name, $m)) {
$prefix = $m[1];
$name = $m[2];
}
$cls = $prefix . '_' . $name;
return new $cls($a, new stdClass());
}
<?php
/*
homepage: http://arc.semsol.org/
license: http://arc.semsol.org/license
class: ARC2 SPARQL+ Parser (SPARQL + Aggregates + LOAD + INSERT + DELETE)
author: Benjamin Nowack
version: 2008-01-07 (Tweak: CONSTRUCT keyword is now optional)
*/
ARC2::inc('SPARQLParser');
class ARC2_SPARQLPlusParser extends ARC2_SPARQLParser
{
function __construct($a = '', &$caller)
{
parent::__construct($a, $caller);
}
function ARC2_SPARQLPlusParser($a = '', &$caller)
{
$this->__construct($a, $caller);
}
function __init()
{
parent::__init();
}
/* +1 */
function xQuery($v)
{
list($r, $v) = $this->xPrologue($v);
foreach (array('Select', 'Construct', 'Describe', 'Ask', 'Insert', 'Delete', 'Load') as $type) {
$m = 'x' . $type . 'Query';
function handleQueryRequest($q)
{
if (preg_match('/^dump/i', $q)) {
$infos = array('query' => array('type' => 'dump'));
$this->is_dump = 1;
} else {
ARC2::inc('SPARQLPlusParser');
$p = new ARC2_SPARQLPlusParser($this->a, $this);
$p->parse($q);
$infos = $p->getQueryInfos();
}
/* errors? */
if ($errors = $this->getErrors()) {
$this->setHeader('http', 'HTTP/1.1 400 Bad Request');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = htmlspecialchars(join("\n", $errors));
return true;
}
$qt = $infos['query']['type'];
/* wrong read key? */
if ($this->read_key && $this->p('key') != $this->read_key && preg_match('/^(select|ask|construct|describe|dump)$/', $qt)) {
$this->setHeader('http', 'HTTP/1.1 401 Access denied');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Access denied. Missing or wrong "key" parameter.';
return true;
}
/* wrong write key? */
if ($this->write_key && $this->p('key') != $this->write_key && preg_match('/^(load|insert|delete|update)$/', $qt)) {
$this->setHeader('http', 'HTTP/1.1 401 Access denied');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Access denied. Missing or wrong "key" parameter.';
return true;
}
/* non-allowed query type? */
if (!in_array($qt, $this->getFeatures())) {
$this->setHeader('http', 'HTTP/1.1 401 Access denied');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Access denied for "' . $qt . '" query';
return true;
}
/* load/insert/delete via GET */
if (in_array($qt, array('load', 'insert', 'delete')) && isset($_GET['query'])) {
$this->setHeader('http', 'HTTP/1.1 501 Not Implemented');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Query type "' . $qt . '" not supported via GET';
return true;
}
/* unsupported query type */
if (!in_array($qt, array('select', 'ask', 'describe', 'construct', 'load', 'insert', 'delete', 'dump'))) {
$this->setHeader('http', 'HTTP/1.1 501 Not Implemented');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Unsupported query type "' . $qt . '"';
return true;
}
/* adjust infos */
$infos = $this->adjustQueryInfos($infos);
$t1 = ARC2::mtime();
$r = array('result' => $this->runQuery($infos, $qt));
$t2 = ARC2::mtime();
$r['query_time'] = $t2 - $t1;
/* query errors? */
if ($errors = $this->getErrors()) {
$this->setHeader('http', 'HTTP/1.1 400 Bad Request');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Error: ' . join("\n", $errors);
return true;
}
/* result */
$m = 'get' . ucfirst($qt) . 'ResultDoc';
if (method_exists($this, $m)) {
$this->result = $this->{$m}($r);
} else {
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = 'Result serializer not available, dumping raw data:' . "\n" . print_r($r, 1);
}
}
<?php
/**
* ARC2 SPARQL Parser
*
* @author Benjamin Nowack
* @license <http://arc.semsol.org/license>
* @homepage <http://arc.semsol.org/>
* @package ARC2
* @version 2010-11-16
*/
ARC2::inc('TurtleParser');
class ARC2_SPARQLParser extends ARC2_TurtleParser
{
function __construct($a, &$caller)
{
parent::__construct($a, $caller);
}
function __init()
{
parent::__init();
$this->bnode_prefix = $this->v('bnode_prefix', 'arc' . substr(md5(uniqid(rand())), 0, 4) . 'b', $this->a);
$this->bnode_id = 0;
$this->bnode_pattern_index = array('patterns' => array(), 'bnodes' => array());
}
/* */
function parse($q, $src = '', $iso_fallback = 'ignore')
{
$this->setDefaultPrefixes();
$this->base = $src ? $this->calcBase($src) : ARC2::getRequestURI();
$this->r = array('base' => '', 'vars' => array(), 'prefixes' => array());
function toHTML($v, $ns = '')
{
ARC2::inc('MicroRDFSerializer');
if (!$ns) {
$ns = isset($this->a['ns']) ? $this->a['ns'] : array();
}
$ser = new ARC2_MicroRDFSerializer(array_merge($this->a, array('ns' => $ns)), $this);
return isset($v[0]) && isset($v[0]['s']) ? $ser->getSerializedTriples($v) : $ser->getSerializedIndex($v);
}
<?php
ARC2::inc('negotiators_DOMNodePlugin');
class negotiators_RSSItemPlugin extends negotiators_DOMNodePlugin
{
function __construct($a = '', &$caller)
{
parent::__construct($a, $caller);
}
function negotiators_DOMNodePlugin($a = '', &$caller)
{
$this->__construct($a, $caller);
}
function __init()
{
parent::__init();
$this->revProp = 'sioc:has_container';
$this->ns['xsd'] = "http://www.w3.org/2001/XMLSchema#";
}
function preProcess()
{
date_default_timezone_set('America/New_York');
$linkNodes = $this->xpath->query('link', $this->source);
$postPage = $this->trimSlash($linkNodes->item(0)->textContent);
$postURI = $postPage . '#this';
$postRes = ARC2::getComponent('PMJ_ResourcePlusPlugin', array('ns' => $this->ns));
$postRes->setURI($postURI);
$postRes->addPropValue($this->revProp, $this->revURI);
$titleNodes = $this->xpath->query('title', $this->source);
$postRes->addPropValue('dcterms:title', $titleNodes->item(0)->textContent);
$createdNodes = $this->xpath->query('pubDate', $this->source);
function runQuery($q, $qt = '')
{
/* ep */
$ep = $this->v('remote_store_endpoint', 0, $this->a);
if (!$ep) {
return false;
}
/* prefixes */
$ns = isset($this->a['ns']) ? $this->a['ns'] : array();
$added_prefixes = array();
$prologue = '';
foreach ($ns as $k => $v) {
$k = rtrim($k, ':');
if (in_array($k, $added_prefixes)) {
continue;
}
if (preg_match('/(^|\\s)' . $k . ':/s', $q) && !preg_match('/PREFIX\\s+' . $k . '\\:/is', $q)) {
$prologue .= "\n" . 'PREFIX ' . $k . ': <' . $v . '>';
}
$added_prefixes[] = $k;
}
$q = $prologue . "\n" . $q;
/* http verb */
$mthd = in_array($qt, array('load', 'insert', 'delete')) ? 'POST' : 'GET';
/* reader */
ARC2::inc('Reader');
$reader =& new ARC2_Reader($this->a, $this);
$reader->setAcceptHeader('Accept: application/sparql-results+xml; q=0.9, application/rdf+xml; q=0.9, */*; q=0.1');
if ($mthd == 'GET') {
$url = $ep;
$url .= strpos($ep, '?') ? '&' : '?';
$url .= 'query=' . urlencode($q);
if ($k = $this->v('store_read_key', '', $this->a)) {
$url .= '&key=' . urlencode($k);
}
} else {
$url = $ep;
$reader->setHTTPMethod($mthd);
$reader->setCustomHeaders("Content-Type: application/x-www-form-urlencoded");
$suffix = ($k = $this->v('store_write_key', '', $this->a)) ? '&key=' . rawurlencode($k) : '';
$reader->setMessageBody('query=' . rawurlencode($q) . $suffix);
}
$to = $this->v('remote_store_timeout', 0, $this->a);
$reader->activate($url, '', 0, $to);
$format = $reader->getFormat();
$resp = '';
while ($d = $reader->readStream()) {
$resp .= $d;
}
$reader->closeStream();
$ers = $reader->getErrors();
unset($this->reader);
if ($ers) {
return array('errors' => $ers);
}
$mappings = array('rdfxml' => 'RDFXML', 'sparqlxml' => 'SPARQLXMLResult', 'turtle' => 'Turtle');
if (!$format || !isset($mappings[$format])) {
return $resp;
//return $this->addError('No parser available for "' . $format . '" SPARQL result');
}
/* format parser */
$suffix = $mappings[$format] . 'Parser';
ARC2::inc($suffix);
$cls = 'ARC2_' . $suffix;
$parser =& new $cls($this->a, $this);
$parser->parse($ep, $resp);
/* ask|load|insert|delete */
if (in_array($qt, array('ask', 'load', 'insert', 'delete'))) {
$bid = $parser->getBooleanInsertedDeleted();
switch ($qt) {
case 'ask':
return $bid['boolean'];
default:
return $bid;
}
}
/* select */
if ($qt == 'select' && !method_exists($parser, 'getRows')) {
return $resp;
}
if ($qt == 'select') {
return array('rows' => $parser->getRows(), 'variables' => $parser->getVariables());
}
/* any other */
return $parser->getSimpleIndex(0);
}
function runQuery($q, $qt = '', $infos = '')
{
/* ep */
$ep = $this->v('remote_store_endpoint', 0, $this->a);
if (!$ep) {
return false;
}
/* prefixes */
$q = $this->completeQuery($q);
/* custom handling */
$mthd = 'run' . $this->camelCase($qt) . 'Query';
if (method_exists($this, $mthd)) {
return $this->{$mthd}($q, $infos);
}
/* http verb */
$mthd = in_array($qt, array('load', 'insert', 'delete')) ? 'POST' : 'GET';
/* reader */
ARC2::inc('Reader');
$reader =& new ARC2_Reader($this->a, $this);
$reader->setAcceptHeader('Accept: application/sparql-results+xml; q=0.9, application/rdf+xml; q=0.9, */*; q=0.1');
if ($mthd == 'GET') {
$url = $ep;
$url .= strpos($ep, '?') ? '&' : '?';
$url .= 'query=' . urlencode($q);
if ($k = $this->v('store_read_key', '', $this->a)) {
$url .= '&key=' . urlencode($k);
}
} else {
$url = $ep;
$reader->setHTTPMethod($mthd);
$reader->setCustomHeaders("Content-Type: application/x-www-form-urlencoded");
$suffix = ($k = $this->v('store_write_key', '', $this->a)) ? '&key=' . rawurlencode($k) : '';
$reader->setMessageBody('query=' . rawurlencode($q) . $suffix);
}
$to = $this->v('remote_store_timeout', 0, $this->a);
$reader->activate($url, '', 0, $to);
$format = $reader->getFormat();
$resp = '';
while ($d = $reader->readStream()) {
$resp .= $d;
}
$reader->closeStream();
$ers = $reader->getErrors();
$this->a['reader_auth_infos'] = $reader->getAuthInfos();
unset($this->reader);
if ($ers) {
return array('errors' => $ers);
}
$mappings = array('rdfxml' => 'RDFXML', 'sparqlxml' => 'SPARQLXMLResult', 'turtle' => 'Turtle');
if (!$format || !isset($mappings[$format])) {
return $resp;
//return $this->addError('No parser available for "' . $format . '" SPARQL result');
}
/* format parser */
$suffix = $mappings[$format] . 'Parser';
ARC2::inc($suffix);
$cls = 'ARC2_' . $suffix;
$parser =& new $cls($this->a, $this);
$parser->parse($ep, $resp);
/* ask|load|insert|delete */
if (in_array($qt, array('ask', 'load', 'insert', 'delete'))) {
$bid = $parser->getBooleanInsertedDeleted();
if ($qt == 'ask') {
$r = $bid['boolean'];
} else {
$r = $bid;
}
} elseif ($qt == 'select' && !method_exists($parser, 'getRows')) {
$r = $resp;
} elseif ($qt == 'select') {
$r = array('rows' => $parser->getRows(), 'variables' => $parser->getVariables());
} else {
$r = $parser->getSimpleIndex(0);
}
unset($parser);
return $r;
}
<?php
/*
homepage: http://arc.semsol.org/
license: http://arc.semsol.org/license
class: ARC2 Store RSS(2) Loader
author: Benjamin Nowack
version: 2008-06-28 (Tweak: adjusted to normalized "literal" type)
*/
ARC2::inc('RSSParser');
class ARC2_StoreRSSLoader extends ARC2_RSSParser
{
function __construct($a = '', &$caller)
{
parent::__construct($a, $caller);
}
function __init()
{
parent::__init();
}
/* */
function addT($t)
{
$this->caller->addT($t['s'], $t['p'], $t['o'], $t['s_type'], $t['o_type'], $t['o_datatype'], $t['o_lang']);
$this->t_count++;
}
}
<?php
/*
homepage: http://arc.semsol.org/
license: http://arc.semsol.org/license
class: ARC2 Store SPOG Loader
author: Morten H�ybye Frederiksen / Benjamin Nowack
version: 2008-07-02
*/
ARC2::inc('SPOGParser');
class ARC2_StoreSPOGLoader extends ARC2_SPOGParser
{
function __construct($a = '', &$caller)
{
parent::__construct($a, $caller);
}
function __init()
{
parent::__init();
}
/* */
function addT($s, $p, $o, $s_type, $o_type, $o_dt = '', $o_lang = '', $g)
{
if (!($s && $p && $o)) {
return 0;
}
if (!$g) {
$g = $this->caller->target_graph;
}
if ($this->caller->fixed_target_graph) {
function changeNamespaceURI($old_uri, $new_uri)
{
ARC2::inc('StoreHelper');
$c = new ARC2_StoreHelper($this->a, $this);
return $c->changeNamespaceURI($old_uri, $new_uri);
}
<?php
/*
homepage: http://arc.semsol.org/
license: http://arc.semsol.org/license
class: ARC2 microformats Extractor
author: Benjamin Nowack
version:
*/
ARC2::inc('ARC2_PoshRdfExtractor');
class ARC2_MicroformatsExtractor extends ARC2_PoshRdfExtractor
{
function __construct($a = '', &$caller)
{
parent::__construct($a, $caller);
}
function ARC2_MicroformatsExtractor($a = '', &$caller)
{
$this->__construct($a, $caller);
}
function __init()
{
parent::__init();
$this->terms = $this->getTerms();
$this->ns_prefix = 'mf';
$this->a['ns']['mf'] = 'http://poshrdf.org/ns/mf#';
}
/* */
function preProcessNode($n)
{
function deleteConstructedGraph()
{
ARC2::inc('StoreConstructQueryHandler');
$h =& new ARC2_StoreConstructQueryHandler($this->a, $this->store);
$sub_r = $h->runQuery($this->infos);
$triples = ARC2::getTriplesFromIndex($sub_r);
$tgs = $this->infos['query']['target_graphs'];
$this->infos = array('query' => array('construct_triples' => $triples, 'target_graphs' => $tgs));
return $this->deleteTriples();
}
function parse($path, $data = '', $iso_fallback = false)
{
$this->setDefaultPrefixes();
/* reader */
if (!$this->v('reader')) {
ARC2::inc('Reader');
$this->reader =& new ARC2_Reader($this->a, $this);
}
$this->reader->setAcceptHeader('Accept: application/x-turtle; q=0.9, */*; q=0.1');
$this->reader->activate($path, $data);
$this->base = $this->v1('base', $this->reader->base, $this->a);
$this->r = array('vars' => array());
/* parse */
$buffer = '';
$more_triples = array();
$sub_v = '';
$sub_v2 = '';
$loops = 0;
$prologue_done = 0;
while ($d = $this->reader->readStream(0)) {
$buffer .= $d;
$sub_v = $buffer;
do {
$proceed = 0;
if (!$prologue_done) {
$proceed = 1;
if ((list($sub_r, $sub_v) = $this->xPrologue($sub_v)) && $sub_r) {
$loops = 0;
$sub_v .= $this->reader->readStream(0, 128);
if ($this->x("\\@?(base|prefix)", $sub_v)) {
/* more prologue to come, use outer loop */
$proceed = 0;
}
} else {
$prologue_done = 1;
}
}
if ($prologue_done && (list($sub_r, $sub_v, $more_triples, $sub_v2) = $this->xTriplesBlock($sub_v)) && is_array($sub_r)) {
$proceed = 1;
$loops = 0;
foreach ($sub_r as $t) {
$this->addT($t);
}
}
} while ($proceed);
$loops++;
$buffer = $sub_v;
if ($loops > 100) {
/* most probably a parser or code bug, might also be a huge object value, though */
$this->addError('too many loops: ' . $loops);
break;
}
}
foreach ($more_triples as $t) {
$this->addT($t);
}
$sub_v = count($more_triples) ? $sub_v2 : $sub_v;
$buffer = $sub_v;
$this->reader->closeStream();
return $this->done();
}
function runQuery($type, $q)
{
/* load/insert/delete must use POST */
if (in_array($type, array('load', 'insert', 'delete'))) {
return $this->addError('Remote Endpoint: "' . $type . '" query must use POST, not supported (yet)');
}
/* construct url */
$url = $this->getEndpointURL();
$url .= '?query=' . urlencode($q);
/* reader */
ARC2::inc('Reader');
$reader =& new ARC2_Reader('', $this);
$reader->setAcceptHeader('Accept: application/sparql-results+xml; q=0.9, application/rdf+xml; q=0.9, */*; q=0.1');
$reader->activate($url);
if ($reader->getErrors()) {
$this->errors = $reader->errors;
return false;
}
/* check result format */
$format = $reader->getFormat();
$mappings = array('rdfxml' => 'RDFXML', 'xml' => 'XML');
if (!$format || !isset($mappings[$format])) {
$reader->closeStream();
return $this->addError('No remote endpoint result handler available for "' . $format . '", returned from "' . $this->getEndpointURL() . '"');
}
/* handle result */
$m = 'parse' . $mappings[$format] . 'ResultDoc';
if (method_exists($this, $m)) {
$this->{$m}($url, $type, $reader);
} else {
return $this->addError('No remote endpoint result handler available for "' . $mappings[$format] . '"');
}
return $this->result;
}
function parse($path, $data = '', $iso_fallback = false)
{
$this->setDefaultPrefixes();
/* reader */
if (!$this->v('reader')) {
ARC2::inc('Reader');
$this->reader = new ARC2_Reader($this->a, $this);
}
$this->reader->setAcceptHeader('Accept: application/x-turtle; q=0.9, */*; q=0.1');
$this->reader->activate($path, $data);
$this->base = $this->v1('base', $this->reader->base, $this->a);
$this->r = array('vars' => array());
/* parse */
$buffer = '';
$more_triples = array();
$sub_v = '';
$sub_v2 = '';
$loops = 0;
$prologue_done = 0;
while ($d = $this->reader->readStream(0, 8192)) {
$buffer .= $d;
$sub_v = $buffer;
do {
$proceed = 0;
if (!$prologue_done) {
$proceed = 1;
if ((list($sub_r, $sub_v) = $this->xPrologue($sub_v)) && $sub_r) {
$loops = 0;
$sub_v .= $this->reader->readStream(0, 128);
/* we might have missed the final DOT in the previous prologue loop */
if ($sub_r = $this->x('\\.', $sub_v)) {
$sub_v = $sub_r[1];
}
if ($this->x("\\@?(base|prefix)", $sub_v)) {
/* more prologue to come, use outer loop */
$proceed = 0;
}
} else {
$prologue_done = 1;
}
}
if ($prologue_done && (list($sub_r, $sub_v, $more_triples, $sub_v2) = $this->xTriplesBlock($sub_v)) && is_array($sub_r)) {
$proceed = 1;
$loops = 0;
foreach ($sub_r as $t) {
$this->addT($t);
}
}
} while ($proceed);
$loops++;
$buffer = $sub_v;
if ($loops > $this->max_parsing_loops) {
/* most probably a parser or code bug, might also be a huge object value, though */
$this->addError('too many loops: ' . $loops . '. Could not parse "' . substr($buffer, 0, 200) . '..."');
break;
}
}
foreach ($more_triples as $t) {
$this->addT($t);
}
$sub_v = count($more_triples) ? $sub_v2 : $sub_v;
$buffer = $sub_v;
$this->unparsed_code = $buffer;
$this->reader->closeStream();
unset($this->reader);
/* remove trailing comments */
while (preg_match('/^\\s*(\\#[^\\xd\\xa]*)(.*)$/si', $this->unparsed_code, $m)) {
$this->unparsed_code = $m[2];
}
if ($this->unparsed_code && !$this->getErrors()) {
$rest = preg_replace('/[\\x0a|\\x0d]/i', ' ', substr($this->unparsed_code, 0, 30));
if (trim($rest)) {
$this->addError('Could not parse "' . $rest . '"');
}
}
return $this->done();
}
<?php
/*
homepage: http://arc.semsol.org/
license: http://arc.semsol.org/license
class: ARC2 RDF/JSON Serializer
author: Benjamin Nowack
version: 2008-07-01 (Fix: Proper jsonEscape method, thx to Keith Alexander)
*/
ARC2::inc('RDFSerializer');
class ARC2_RDFJSONSerializer extends ARC2_RDFSerializer
{
function __construct($a = '', &$caller)
{
parent::__construct($a, $caller);
}
function ARC2_RDFJSONSerializer($a = '', &$caller)
{
$this->__construct($a, $caller);
}
function __init()
{
parent::__init();
$this->content_header = 'application/json';
}
/* */
function getTerm($v, $term = 's')
{
if (!is_array($v)) {
if (preg_match('/^\\_\\:/', $v)) {
<?php
/**
* ARC2 Graph object
*
* @author Benjamin Nowack <*****@*****.**>
* @license W3C Software License
* @homepage <http://arc.semsol.org/>
* @package ARC2
*/
ARC2::inc('Class');
class ARC2_Graph extends ARC2_Class
{
protected $index;
function __construct($a, &$caller)
{
parent::__construct($a, $caller);
}
function __init()
{
parent::__init();
$this->index = array();
}
function setIndex($index)
{
$this->index = $index;
return $this;
}
function getIndex()
{
return $this->index;
function toHTML($v, $ns = '', $label_store = '')
{
ARC2::inc('MicroRDFSerializer');
if (!$ns) {
$ns = isset($this->a['ns']) ? $this->a['ns'] : array();
}
$conf = array_merge($this->a, array('ns' => $ns));
if ($label_store) {
$conf['label_store'] = $label_store;
}
$ser = new ARC2_MicroRDFSerializer($conf, $this);
return isset($v[0]) && isset($v[0]['s']) ? $ser->getSerializedTriples($v) : $ser->getSerializedIndex($v);
}
