Page Menu
Home
c4science
Search
Configure Global Search
Log In
Files
F79689227
LinkResolver.inc.php.wml
No One
Temporary
Actions
Download File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Award Token
Subscribers
None
File Metadata
Details
File Info
Storage
Attached
Created
Tue, Aug 27, 18:28
Size
12 KB
Mime Type
text/x-c
Expires
Thu, Aug 29, 18:28 (2 d)
Engine
blob
Format
Raw Data
Handle
20218814
Attached To
R3600 invenio-infoscience
LinkResolver.inc.php.wml
View Options
## $Id$
## This file is part of the CERN Document Server Software (CDSware).
## Copyright (C) 2002, 2003, 2004, 2005 CERN.
##
## The CDSware is free software; you can redistribute it and/or
## modify it under the terms of the GNU General Public License as
## published by the Free Software Foundation; either version 2 of the
## License, or (at your option) any later version.
##
## The CDSware is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with CDSware; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
## read config variables:
#include "config.wml"
#include "configbis.wml"
<?
<protect>
## $Id$
## DO NOT EDIT THIS FILE! IT WAS AUTOMATICALLY GENERATED FROM CDSware WML SOURCES.
</protect>
//==========================================================================
// File: LinkResolver.inc (flexElink core)
// Classes: LinkResolver
// Requires: AELExecutor, Vars, IntVar
// Included: EXECUTOR, INTVARS, DB
//==========================================================================
include_once(EXECUTOR);
include_once(INTVARS);
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Class: Link
// Purpose:
// Attributes:
// Methods:
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
class Link {
var $type;
var $params;
var $conditions;
function Link( $type )
{
include( DB );
$db=mysql_connect( $DB_HOST, $DB_USER, $DB_PASSWD );
mysql_selectdb( $DB_DB, $db );
$this->params=array();
$qry="select pname
from flxLINKTYPEPARAMS
where linktype='".addslashes($type)."'
order by ord";
$qh=mysql_query($qry, $db);
while($row=mysql_fetch_array($qh))
{
array_push($this->params, $row[0]);
}
$this->conditions=array();
$qry="select eval_order, el_condition, solvingtype, base_file, base_url
from flxLINKTYPECONDITIONS
where linktype='".$type."'
order by eval_order";
$qh=mysql_query($qry);
while($row=mysql_fetch_array($qh))
{
list($eorder, $ccode, $stype, $file, $url)=$row;
$d=new LinkConditionData();
$d->linktype=$type;
$d->eorder=$eorder;
$d->code=$ccode;
if($stype=="INT")
{
$d->file=$file;
$d->url=$url;
$c=new LinkConditionINT( $d );
}
else
{
$c=new LinkConditionEXT( $d );
}
if($c!=null)
array_push($this->conditions, $c);
}
//mysql_close($db);
}
function check( $par_values )
{
return (count($par_values)==count($this->params));
}
function solve( $par_values )
{
if(count($par_values)!=count($this->params))
{
return array(0, "Incorrect number of parameters");
}
$vars=new Vars();
for($i=0;$i<=count($this->params);$i++)
{
$vars->addValue($this->params[$i], $par_values[$i]);
}
foreach($this->conditions as $cond)
{
list($errcode, $link)=$cond->evaluate($vars);
if($errcode<0) return array(0, "$link");
if($errcode==0) continue;
return array(1, $link);
}
return array(0, "NOT SOLVED");
}
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Class: LinkConditionData (non-visible)
// Purpose:
// Attributes:
// Methods:
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
class LinkConditionData{
var $linktype;
var $eorder;
var $code;
var $file;
var $url;
function LinkConditionData(){}
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Class: LinkConditionINT (implements LinkCondition)
// Purpose:
// Attributes:
// Methods:
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
class LinkConditionINT {
var $condition;
var $actions;
var $formats;
var $exec;
var $file_path;
var $url_path;
function LinkConditionINT( $data )
{
if($data==null) return null;
$this->exec=new AELExecutor();
list($ok, $msg)=$this->exec->checkCode( $data->code );
if(!$ok) return null;
$this->condition=$msg;
$this->file_path=$data->file;
$this->url_path=$data->url;
$this->actions=array();
$this->formats=array();
include( DB );
$db=mysql_connect( $DB_HOST, $DB_USER, $DB_PASSWD );
mysql_selectdb( $DB_DB, $db );
$qry="select f.name, f.text, f.extensions
from flxFILEFORMATS f, flxLINKTYPECONDITIONSFILEFORMATS cf
where cf.linktype='".$data->linktype."'
and cf.eval_order='".$data->eorder."'
and f.name=cf.fname";
$qh=mysql_query($qry, $db);
while($row=mysql_fetch_array($qh))
{
$d=new LinkFileFormatData();
list($d->name, $d->description, $ext)=$row;
$d->extensions=array();
if(trim($ext)!="")
$d->extensions=explode("|", $ext);
$format=new LinkFileFormat( $d );
if($format==null) continue;
array_push($this->formats, $format);
}
$qry="select el_code
from flxLINKTYPECONDITIONSACTIONS
where linktype='".$data->linktype."'
and eval_order=".$data->eorder."
order by apply_order";
$qh=mysql_query($qry, $db);
while($row=mysql_fetch_array($qh))
{
$d=new LinkActionData();
list($d->code)=$row;
$action=new LinkAction($d);
if(!$action) continue;
array_push($this->actions, $action);
}
mysql_close($db);
}
function evaluate( $vars )
{
list($ok, $res)=$this->exec->execTree( $this->condition, $vars );
if(!$ok) return array(-1, "Error evaluating condtion: $res");
if($res=="FALSE") return array(0, "FALSE");
if(count($this->actions)==0) return array(0, "NO ACTIONS");
$v=new IntVar("LINK");
$generated=false;
foreach($this->actions as $action)
{
list($ok, $res)=$action->getResult( $vars );
if(!$ok) return array(-1, "Error evaluating action: $res");
$file=$this->file_path.$res;
$url=$this->url_path.$res;
if(count($this->formats)>0)
{
foreach($this->formats as $format)
{
foreach($format->composeFilePaths( $file, $url ) as $i)
{
list($full_file, $full_url)=$i;
$testfh=@ fopen($full_file, "r");
if($testfh)
{
$generated=true;
fclose($testfh);
$v->addValue($full_url);
$v->addSFValue("url", $full_url);
$v->addSFValue("file", $full_file);
$v->addSFValue("format_id", $format->getName());
$v->addSFValue("format_desc", $format->getDesc());
$v->inextValue();
}
}
}
}
if($generated===true) break;
$testfh=@ fopen($file, "r");
if($testfh)
{
$generated=true;
fclose($testfh);
$v->addValue($url);
$v->addSFValue("url", $url);
$v->addSFValue("file", $url);
break;
}
}
if($generated)
return array(1, $v);
return array(0, "NO LINK");
}
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Class: LinkFileFormatData (non-visible)
// Purpose:
// Attributes:
// Methods:
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
class LinkFileFormatData {
var $name;
var $description;
var $extensions;
function LinkFileFormatData(){}
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Class: LinkFileFormat
// Purpose:
// Attributes:
// Methods:
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
class LinkFileFormat {
var $description;
var $name;
var $extensions;
function LinkFileFormat( $data )
{
if($data==null) return null;
$this->name=$data->name;
$this->description=$data->description;
$this->extensions=$data->extensions;
}
function getName()
{
return $this->name;
}
function getDesc()
{
return $this->description;
}
function composeFilePaths( $base_path, $base_url )
{
$res=array();
foreach($this->extensions as $ext)
{
$ext=trim($ext);
if($ext=="") continue;
array_push( $res, array($base_path.".".$ext, $base_url.".".$ext) );
}
return $res;
}
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Class: LinkConditionEXT (implements LinkCondition)
// Purpose:
// Attributes:
// Methods:
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
class LinkConditionEXT {
var $condition;
var $action;
var $exec;
function LinkConditionEXT( $data )
{
if($data==null) return null;
$this->exec=new AELExecutor();
list($ok, $msg)=$this->exec->checkCode( $data->code );
if(!$ok) return null;
$this->condition=$msg;
include( DB );
$db=mysql_connect( $DB_HOST, $DB_USER, $DB_PASSWD );
mysql_selectdb( $DB_DB, $db );
$qry="select el_code
from flxLINKTYPECONDITIONSACTIONS
where linktype='".$data->linktype."'
and eval_order=".$data->eorder."
order by apply_order";
$qh=mysql_query($qry, $db);
$d=new LinkActionData();
list($d->code)=mysql_fetch_array($qh);
mysql_close($db);
if(!$d->code) return null;
if(!($this->action=new LinkAction($d))) return null;
}
function evaluate( $vars )
{
list($ok, $res)=$this->exec->execTree( $this->condition, $vars );
if(!$ok) return array(-1, "Error evaluating condtion: $res");
if($res=="FALSE") return array(0, "FALSE");
list($ok, $res)=$this->action->getResult( $vars );
if(!$ok) return array(-1, "Error evaluating action: $res");
$v=new IntVar("LINK");
$v->addValue($res);
$v->addSFValue("url", "$res");
$v->inextValue();
return array(1, $v);
}
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Class: LinkActionData (non-visible)
// Purpose:
// Attributes:
// Methods:
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
class LinkActionData {
var $code;
function LinkActionData(){}
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Class: LinkAction
// Purpose:
// Attributes:
// Methods:
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
class LinkAction {
var $action;
var $exec;
function LinkAction($data)
{
if($data==null) return null;
$this->exec=new AELExecutor();
list($ok, $msg)=$this->exec->checkCode( $data->code );
if(!$ok) return null;
$this->action=$msg;
}
function getResult($vars)
{
return $this->exec->execTree( $this->action, $vars );
}
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Class: LinkResolver
// Purpose:
// Attributes:
// Methods:
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
class LinkResolver {
var $db;
var $a;
var $links;
function LinkResolver() {
$this->links=array();
}
function & getInstance()
{
static $instance;
if(!isset($instance))
{
$instance=new LinkResolver();
}
return $instance;
}
function getLink($type)
{
$type=strtoupper(trim($type));
if(isset($this->links[$type]))
{
return $this->links[$type];
}
else
{
include( DB );
$db=mysql_connect( $DB_HOST, $DB_USER, $DB_PASSWD );
mysql_selectdb( $DB_DB, $db );
$qry="select linktype
from flxLINKTYPES
where linktype='$type'";
$qh=mysql_query($qry);
if(mysql_num_rows($qh)!="1") return null;
mysql_close($db);
$link=new Link($type);
if($link==null) return null;
$this->links[$type]=$link;
return $link;
}
}
function destroy()
{
//mysql_close( $this->db );
}
function checkLink( $linktype, $params ) {
$l=$this->getLink( $linktype );
if($l==null) return 0;
return $l->check($params);
}
function solveLink( $linktype, $params ) {
$l=$this->getLink($linktype);
if($l==null) return array(0, "Incorrect link");
list($ok, $res)=$l->solve($params);
if(!$ok) return array(0, $res);
return array(1, $link_url, $res);
}
}//end class
?>
Event Timeline
Log In to Comment