/branches/1.2.0/www/server/grids/aws_ec2_pricehistory_list.php

<?php

	$response = array();

	

	// AJAX_REQUEST;

	$context = 6;

	

	try

	{

		$enable_json = true;

		include("../../src/prepend.inc.php");		

		

		$req_show_all = true;	

		

		if (isset($req_show_all))

		{

			if ($req_show_all == 'true')

				$_SESSION['sg_show_all'] = true;

			else

				$_SESSION['sg_show_all'] = false;

		}

		

		$Client = Client::Load($_SESSION['uid']);	

		

		$AmazonEC2Client = AmazonEC2::GetInstance(AWSRegions::GetAPIURL($_SESSION['aws_region'])); 

		$AmazonEC2Client->SetAuthKeys($Client->AWSPrivateKey, $Client->AWSCertificate);

	

		if($req_query)

		{	

			

			//---------------------------- filter for SpotPriceHistory:

			$filter = array(); 

			$filter = explode(" ", $req_query);

	        

	        $instanceTypes = explode(" ","m1.small m1.large m1.xlarge c1.medium c1.xlarge m2.2xlarge m2.4xlarge");

	        $i = 0;

	        $instanceTypeSet = array();

	        $requestDesription = array();	     

	         

	        foreach($filter as $item) // search instance type conjunctions

	        {

	        	

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

	        	{ 

	        		 // serach by instance type

	        		if(strcasecmp($instanceTypes[$i],$item) == 0)

	        		{

	        			$instanceTypeSet[] = $instanceTypes[$i];

	        			continue;

	        		}

	        	}

	        		// serach by description

	        		$win   = stristr($item,"windows");

	        		$linux = stristr($item,"linux");

	        		$unix  = stristr($item,"unix");

	        		if($win)

	        		{

	        			$requestDesription[] = "Windows";

	        			continue;	

	        		}

	        		elseif(($linux) || ($unix))

	        		{

	        			$requestDesription[] = "Linux/UNIX";

	        			continue;

	        		}	        	     	

	        }	           

	        //---------------------------- end filter ------------------------			

			$describeSpotPriceType = new DescribeSpotPriceHistoryType(null,$instanceTypeSet,$requestDesription,null);

			$aws_response = $AmazonEC2Client->DescribeSpotPriceHistory($describeSpotPriceType);			

		}

        else

			$aws_response = $AmazonEC2Client->DescribeSpotPriceHistory(); // show all prices

		  

			

		// Rows	

		$rows = (array)$aws_response->spotPriceHistorySet;

		

		if ($rows["item"] instanceof stdClass)

			$rows["item"] = array($rows["item"]); // convert along subnet record to array

		

		$rowz = array();		

		

		foreach ($rows['item'] as $row)					

				$rowz[]=(array)$row;	

				

		if ($req_sort == 'price' )

		{

			$nrowz = array();

			foreach ($rowz as $row)				

				$nrowz[(string)$row['spotPrice']] = $row;			

					

			ksort($nrowz);

			

			if ($req_dir == 'ASC')

				$rowz = array_reverse($nrowz);

			else

				$rowz = $nrowz;	

		}		

		

		if ($req_sort == 'timestamp')

		{

			$nrowz = array();

			foreach ($rowz as $row)				

				$nrowz[(string)$row['timestamp']] = $row;			

					

			ksort($nrowz);

			

			if ($req_dir == 'ASC')

				$rowz = array_reverse($nrowz);

			else

				$rowz = $nrowz;	

		}	

		

		// diplay list limits

		$start = $req_start ? (int) $req_start : 0;

		$limit = $req_limit ? (int) $req_limit : 20;

		

		$response['total'] = count($rowz);	

		$rowz = (count($rowz) > $limit) ? array_slice($rowz, $start, $limit) : $rowz;

		

		// descending sorting of requested result

		$response["data"] = array();	

				

		// Rows. Create final rows array for script

		foreach ($rowz as $row)

		{ 	

			$response["data"][] = array(

					"type"				=> (string)$row['instanceType'], // have to call only like "id" for correct script work in template

					"description"		=> (string)$row['productDescription'],

					"price"			=> (string)$row['spotPrice'],					

					"timestamp"			=> (string)$row['timestamp']

					);				

		}

	 

	}

	catch(Exception $e)

	{

		$response = array("error" => $e->getMessage(), "data" => array());

	}



	print json_encode($response);

?>