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|
<?php
/**
* ARC2 Resource object
*
* @author Benjamin Nowack <bnowack@semsol.com>
* @license http://arc.semsol.org/license
* @homepage <http://arc.semsol.org/>
* @package ARC2
* @version 2010-02-23
*/
ARC2::inc('Class');
class ARC2_Resource extends ARC2_Class {
function __construct($a = '', &$caller) {
parent::__construct($a, $caller);
}
function ARC2_Resource($a = '', &$caller) {
$this->__construct($a, $caller);
}
function __init() {
parent::__init();
$this->uri = '';
$this->index = array();
$this->fetched = array();
$this->store = '';
}
/* */
function setURI($uri) {
$this->uri = $uri;
}
function setIndex($index) {
$this->index = $index;
}
function setProps($props, $s = '') {
if (!$s) $s = $this->uri;
$this->index[$s] = $props;
}
function setProp($p, $os, $s = '') {
if (!$s) $s = $this->uri;
/* single plain value */
if (!is_array($os)) $os = array('value' => $os, 'type' => 'literal');
/* single array value */
if (isset($os['value'])) $os = array($os);
/* list of values */
foreach ($os as $i => $o) {
if (!is_array($o)) $os[$i] = array('value' => $o, 'type' => 'literal');
}
$this->index[$s][$this->expandPName($p)] = $os;
}
function setStore($store) {
$this->store = $store;
}
/* */
function fetchData($uri = '') {
if (!$uri) $uri = $this->uri;
if (!$uri) return 0;
if (in_array($uri, $this->fetched)) return 0;
$this->index[$uri] = array();
if ($this->store) {
$index = $this->store->query('DESCRIBE <' . $uri . '>', 'raw');
}
else {
$index = $this->toIndex($uri);
}
$this->index = ARC2::getMergedIndex($this->index, $index);
$this->fetched[] = $uri;
}
/* */
function getProps($p = '', $s = '') {
if (!$s) $s = $this->uri;
if (!$s) return array();
if (!isset($this->index[$s])) $this->fetchData($s);
if (!$p) return $this->index[$s];
return $this->v($this->expandPName($p), array(), $this->index[$s]);
}
function getProp($p, $s = '') {
$props = $this->getProps($p, $s);
return $props ? $props[0] : '';
}
function getPropValue($p, $s = '') {
$prop = $this->getProp($p, $s);
return $prop ? $prop['value'] : '';
}
function getPropValues($p, $s = '') {
$r = array();
$props = $this->getProps($p, $s);
foreach ($props as $prop) {
$r[] = $prop['value'];
}
return $r;
}
function hasPropValue($p, $o, $s = '') {
$props = $this->getProps($p, $s);
$o = $this->expandPName($o);
foreach ($props as $prop) {
if ($prop['value'] == $o) return 1;
}
return 0;
}
/* */
}
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