{

static private function getBrowser($u_agent)

{

$bname = 'UnknownBrowser';

$platform = 'UnknownPlatform';

$version = "";

//First get the platform?

if (preg_match('/android/i', $u_agent)) {

$platform = 'Android';

}

elseif (preg_match('/iphone/i', $u_agent)) {

$platform = 'iPhone';

}

elseif (preg_match('/macintosh|mac os x/i', $u_agent)) {

$platform = 'mac';

}

elseif (preg_match('/windows|win32/i', $u_agent)) {

$platform = 'windows';

}

elseif (preg_match('/linux/i', $u_agent)) {

$platform = 'Linux';

}

// Next get the name of the useragent yes seperately and for good reason

if(preg_match('/LieBaoFast/i',$u_agent))

{

$bname = 'LieBaoFast';

$ub = "LieBaoFast";

}

elseif(preg_match('/LBBROWSER/i',$u_agent))

{

$bname = 'LBBROWSER';

$ub = "LBBROWSER";

}

elseif(preg_match('/Opera/i',$u_agent))

{

$bname = 'Opera';

$ub = "Opera";

}

elseif(preg_match('/OPR/i',$u_agent))

{

$bname = 'Opera';

$ub = "OPR";

}

elseif(preg_match('/MQQBrowser/i',$u_agent))

{

$bname = 'QQMobileBrowser';

$ub = "MQQBrowser";

}

elseif(preg_match('/QQBrowser/i',$u_agent))

{

$bname = 'QQBrowser';

$ub = "QQBrowser";

}

elseif(preg_match('/SogouMobileBrowser/i',$u_agent))

{

$bname = 'SogouMobileBrowser';

$ub = "SogouMobileBrowser";

}

elseif(preg_match('/SE/i',$u_agent) && preg_match('/MetaSr/i',$u_agent))

{

$bname = 'SogouBrowser';

$ub = "SE";

}

elseif(preg_match('/Firefox/i',$u_agent))

{

$bname = 'Firefox';

$ub = "Firefox";

}

elseif(preg_match('/Maxthon/i',$u_agent))

{

$bname = 'Maxthon';

$ub = "Maxthon";

}

elseif(preg_match('/TheWorld/i',$u_agent))

{

$bname = 'TheWorld';

$ub = "TheWorld";

}

elseif(preg_match('/TaoBrowser/i',$u_agent))

{

$bname = 'TaobaoBrowser';

$ub = "TaoBrowser";

}

elseif(preg_match('/baidubrowser/i',$u_agent))

{

$bname = 'baidubrowser';

$ub = "baidubrowser";

}

elseif(preg_match('/BIDUBrowser/i',$u_agent))

{

$bname = 'baidubrowser';

$ub = "BIDUBrowser";

}

elseif(preg_match('/UCBrowser/i',$u_agent))

{

$bname = 'UCBrowser';

$ub = "UCBrowser";

}

elseif(preg_match('/UBrowser/i',$u_agent))

{

$bname = 'UCBrowser';

$ub = "UBrowser";

}

elseif(preg_match('/QHBrowser/i',$u_agent))

{

$bname = 'QHBrowser';

$ub = "QHBrowser";

}

elseif(preg_match('/MXiOS/i',$u_agent))

{

$bname = 'MXiOS';

$ub = "MXiOS";

}

elseif(preg_match('/Netscape/i',$u_agent))

{

$bname = 'Netscape';

$ub = "Netscape";

}

elseif(preg_match('/weibo/i',$u_agent))

{

$bname = 'weibo';

$ub = "weibo";

}

elseif(preg_match('/MSIE/i',$u_agent) && !preg_match('/Opera/i',$u_agent))

{

$bname = 'Internet Explorer';

$ub = "MSIE";

}

elseif(preg_match('/Chrome/i',$u_agent)||preg_match('/CriOS/i',$u_agent))

{

$bname = 'Google Chrome';

$ub = "Chrome";

}

elseif(preg_match('/Safari/i',$u_agent))

{

$bname = 'Apple Safari';

$ub = "Safari";

}

else

{

$bname = 'unknown';

$ub = 'unknown';

}

// finally get the correct version number

$known = array('Version', $ub, 'other');

$pattern = '#(?<browser>' . join('|', $known) .

')[/ ]+(?<version>[0-9.|a-zA-Z.]*)#';

if (!preg_match_all($pattern, $u_agent, $matches)) {

// we have no matching number just continue

}

// see how many we have

$i = count($matches['browser']);

if($bname == 'unknown' || $ub == 'unknown' || $i == 0)

{

$version="unknownVersion";

}

elseif ($i != 1) {

//we will have two since we are not using 'other' argument yet

//see if version is before or after the name

if (strripos($u_agent,"Version") < strripos($u_agent,$ub)){

$version= $matches['version'][1];

}

else {

$version= $matches['version'][0];

}

}

else {

$version= $matches['version'][0];

}

// check if we have a number

if ($version==null || $version=="") {$version="unknownVersion";}

return array(

'userAgent' => $u_agent,

'name' => $bname,

'version' => $version,

'platform' => $platform,

'pattern' => $pattern

);

}

static public function sort($user_info_arr,$spec_info_origin_arr)

{

//when search result is empty, then spec array is NULL and instanceKeys is 0 => NULL

if($spec_info_origin_arr == NULL)

{

$isK_null = array("0" => "NULL");

return array($spec_info_origin_arr, $isK_null);

}

//get origin spec id for the case when don't use predict interface

foreach($spec_info_origin_arr as $k => $v)

{

$sid[$k] = $spec_info_origin_arr[$k]['spec_id'];

}

$re = NULL;

$s = NULL;

//get a recommender, 如果接口失效，注释掉

$re = new Recommender('sina-miaoche');

//implement a statistics request, 如果接口失效，注释掉

$s = new Statistics('sina-miaoche');

//如果接口失效

if($re == NULL||$s == NULL)

{

$instKeys = array_fill(0,count($spec_info_origin_arr),'NULL');

for ($i=0; $i<count($sid); $i++)

{

$indexchanged_instKeys[$sid[$i]] = $instKeys[$i];

}

return array($sid, $indexchanged_instKeys);

}

$request = Yaf_Dispatcher::getInstance()->getRequest();

$params = $request->getQuery() + $request->getPost() + $request->getParams();

ksort($params);

foreach ($params as $k => $v) {

if ($v === '') {

unset($params[$k]);

continue;

}

$params[$k] = trim($v);

}

$sort_url = isset($params["sort"]) ? $params["sort"] : "NULL";

$asc_url = isset($params["asc"]) ? $params["asc"] : "NULL";

if($sort_url == "NULL" && $asc_url == "NULL")

$sortRule = "price+1";

else if($sort_url == "price")

{

if($asc_url == "NULL")

$asc_url = "1";

$sortRule = $sort_url."+".$asc_url;

}

else if($sort_url != "price")

{

if($asc_url == "NULL")

$asc_url = "1";

$sortRule = $sort_url."+".$asc_url;

}

else

{

$sortRule = $sort_url."+".$asc_url;

}

$p_url = isset($params["p"]) ? $params["p"] : "1";

$featuresForPredict = array("min_price", "weight", "brand_id", "series_id", "spec_id", "deal_record", "discount", "msrp", "name");

$da = array();

$specid_arr = array();//save spec id used as index when sort

$sorted_auto_array = array();//save spec information after sort

$sorted_auto_id = array();//save spec id after sort

$spec_info_arr = $spec_info_origin_arr;

$instanceKeys = $re->getInstanceKeys(count($spec_info_arr));

//change the index of instanceKeys for case not use predict interface and return sid

$indexchanged_instanceKeys = array();

for ($i=0; $i<count($sid); $i++)

{

$indexchanged_instanceKeys[$sid[$i]] = $instanceKeys[$i];

}

//add items

foreach ($spec_info_arr as $k => $v)

{

// construct a recommend feature object

$ri = new RecommendFeature();

$chajia = $spec_info_arr[$k]['msrp'] - $spec_info_arr[$k]['min_price'];

$ri->addFeature("price_difference",(string)$chajia);

$ri->addFeature("rank","0");

$ri->addFeature("page",(string)$p_url);

$ri->addFeature("brand_name",(string)$spec_info_arr[$k]['brand_name']['name']);

$ri->addFeature("series_name",(string)$spec_info_arr[$k]['series_name']['name']);

//add features to a spec instance //and add customInformation

foreach ($v as $kk => $vv)

{

if(in_array($kk,$featuresForPredict))

{

$ri->addFeature((string)$kk,(string)$vv);//add feature

}

}

//add an instance with defined features into recommender

array_push($specid_arr,$spec_info_arr[$k]['spec_id']);

$re->addInstance((string)$instanceKeys[$k],$ri);

}

//construct request features

//add user

$ri = new RecommendFeature();

foreach ($user_info_arr as $k => $v)

{

if($k=='ip')

{

$ip_4 = explode('.',$v);

$ip_3 = $ip_4[0].'.'.$ip_4[1].'.'.$ip_4[2];

$ri->addFeature((string)$k,(string)$ip_3);

}

else if($k=='ua')

{

$ua = self::getBrowser($v);

$ri->addFeature("Browser",(string)$ua['name']);

$ri->addFeature("BrowserVersion",(string)$ua['version']);

$ri->addFeature("platform",(string)$ua['platform']);

}

else

{

$ri->addFeature((string)$k,$v);

}

}

$ri->addFeature("sort_rule",$sortRule);

$ri->addFeature("flowType","pc_000");

$re->setReqFeature($ri);

//assign action type to be predicted

$actionList = [0];

//predict the instances

$status = $re->predict($actionList);

if ($status->getErrorCode() == ServiceCallStatus::ERR_OK

|| $status->getErrorCode() == ServiceCallStatus::ERR_PARTIAL_ERROR)

{

//fetch the result of each instance

for ($i=0; $i<count($instanceKeys); $i++)

{

// if status is ok

// fetch the result of 'instance_1'

// or throw exception if instanceKey not found

try {

$rr = $re->getResult($instanceKeys[$i]);

//get prediction of action type 0

$rp = $rr->getPrediction(0);

$status = $rp[0];

$value = $rp[1];

//save spec id as key, prediction result as value

$array_save[$specid_arr[$i]] = $value;

$array_instanceKeys_tosort[$specid_arr[$i]] = $instanceKeys[$i];

$array_spec_info[$specid_arr[$i]] = $spec_info_arr[$i];

} catch(Exception $e) {

return array($sid, $indexchanged_instanceKeys);//如果失败，返回原spec_id

}

}

}

else

{

return array($sid, $indexchanged_instanceKeys);//如果失败，返回原spec_id

}

//stable sort

$temp = array();

$i = 0;

foreach ($array_save as $key => $value) {

$temp[] = array($i, $key, $value);

$i++;

}

uasort($temp, function($a, $b) {

return $a[2] == $b[2] ? ($a[0] > $b[0]) : ($a[2] < $b[2] ? 1 : -1);

});

$array_save = array();

foreach ($temp as $val) {

$array_save[$val[1]] = $val[2];

}

//get the spec id after sorted.

$sorted_auto_id = array_keys($array_save);

//get the instanceKeys after sorted.

$sorted_instanceKeys = array();

$sorted_spec_info_arr = array();

foreach ($sorted_auto_id as $k => $v)

{

$sorted_instanceKeys[$v] = $array_instanceKeys_tosort[$v];

$sorted_spec_info_arr[$k] = $array_spec_info[$v];

}

//show

foreach ($sorted_spec_info_arr as $k => $v)

{

// construct a display info object

$d = new DisplayInfo();

//set instanceKey

$d->setInstanceKey((string)$sorted_instanceKeys[$sorted_spec_info_arr[$k]['spec_id']]);

$d->addCustomInfo("rank",(string)$k);

// make statistics display request

array_push($da,$d);

}

$s->statDisplay($da);

//return specid

return array($sorted_auto_id, $sorted_instanceKeys);

}

//如果压力测试失败，注释掉\app\actions\Auto\Detail.php中的 $this->predict($spec_id);这一句话，大约在575行

static public function statistic($userid_str,$specid_int)

{

$request = Yaf_Dispatcher::getInstance()->getRequest();

$params = $request->getQuery() + $request->getPost() + $request->getParams();

ksort($params);

foreach ($params as $k => $v) {

if ($v === '') {

unset($params[$k]);

continue;

}

$params[$k] = trim($v);

}

$instanceKey = isset($params['ik'])?$params['ik']:"NULL";

if($instanceKey == "NULL")

{

return;

}

$s = new Statistics('sina-miaoche');

$actionValue = 1;

$actionType = 0;

// make discrete statistics action request

try{

$s->statDiscreteAction($instanceKey, $actionValue, $actionType);

} catch(Exception $e) {

return;

}

}