A7

App/osbasics.php

@@ -0,0 +1,200 @@
+<?php
+
+echo "osbasics\n";
+
+//problem 1
+
+assert(TRUE);
+
+//problem 2
+
+function tddStringEquals($expected,$result){
+	if (!($expected===$result)){
+		return FALSE;
+	}
+return TRUE;
+}
+
+assert(tddStringEquals("one","one"));
+
+
+//assert(tddAssertStringEquals("one","two"));
+
+
+//problem 3
+
+function AssertEquals($expected,$result){
+	if($expected!==$result){
+		throw new Exception("Assert Equals failed");
+	}
+return TRUE;
+}	
+
+function AssertNotEquals($expected,$result){
+	if($expected===$result){
+		throw new Exception("Assert Not Equals Failed");
+	}
+	return TRUE;
+}
+
+AssertEquals("one","one");
+//AssertEquals("one","two");
+
+AssertNotEquals("one","two");
+//AssertNotEquals("one","one");
+
+//problem 4
+
+$failed=FALSE;
+try{
+	AssertEquals("one","two");
+} catch (Exception $e){
+	$failed=TRUE;
+}
+assert($failed);
+
+$failed=FALSE;
+try{
+	AssertNotEquals("one","one");
+} catch (Exception $e){
+	$failed=TRUE;
+}
+assert($failed);
+
+//problem 5
+
+$xml=<<<XML
+	<?xml version="1.0" ?>
+	<osil><instanceHeader></osil>
+XML;
+
+function osil(){
+	$osil=new SimpleXMLElement('<osil/>');
+	$osil-> addChild('instanceHeader');
+	return $osil-> asXML();
+
+AssertEquals($xml,$osil);
+}
+
+//Problem 6a
+
+function AssertContainsString($needle,$haystack){
+	if (strpos($haystack,$needle)===FALSE){
+		throw new Exception("AssertContainsString failed");
+	}
+}
+AssertContainsString("needle","haystack needle");
+//AssertContainsString("needle","nada");	
+
+//AssertContainsString("needle","nada");
+$failed=FALSE;
+try{
+	//AssertContainsString("needle","needle");
+	AssertContainsString("needle","HAY");
+} catch (Exception $e){
+	$failed=TRUE;
+}
+assert($failed);
+
+//echo "passed\n";
+
+//Problem 6b
+
+function AssertContains($needle,$hay){
+	foreach($hay as $h)
+	if (strpos($h,$needle)!==FALSE){
+		return TRUE;
+	}	
+	throw new Exception("AssertContains failed");
+}
+AssertContains("needle",array("needle hay","hay needle"));
+//AssertContains("needle",array("hay hay","hay hay hay"));
+
+$failed=FALSE;
+try{
+	AssertContains("needle",array("hay","hay no sharp objects"));
+} catch (Exception $e){
+	$failed=TRUE;
+}
+assert($failed);
+
+//Problem 7
+
+exec("\\WebIS\\bin\\OSSolverService.exe -h",$output,$result);
+
+AssertEquals(0,$result);
+
+//print_r ($output);
+
+$failed=FALSE;
+try{
+	AssertContains("OS Version X.Y.Z",$output);
+	//AssertContains("OS Version: 2.",$output);
+} catch (Exception $e){
+	$failed=TRUE;
+}
+assert($failed);
+
+AssertContains("OS Version: 2.",$output);
+
+//problem 8
+
+function write($file){
+	$osil=new SimpleXMLElement('<osil/>');
+	$osil -> addchild('instanceHeader');
+	return $osil-> asXML($file);
+}
+
+write('test.xml');
+$xxml=file_get_contents('test.xml');
+
+//print_r($xxml);
+//print_r(osil());
+AssertEquals($xxml,osil());
+
+
+//Problem 9
+
+function solve(){
+	exec("\\WebIS\\bin\\OSSolverService.exe -osil test.xml -osrl solution.xml",$output,$result);
+	if ($result!==0){
+		throw new Exception("Solve function failed\n".implode("\n",$output));
+	}
+	return TRUE;
+}
+
+$osil=new SimpleXMLElement('<osil/>');
+$osil -> addchild('instanceHeader');
+$osil -> addChild('instanceData') -> addChild('objectives') -> addChild('obj') -> addAttribute('numberOfObjCoef',0);
+$osil -> asXML('test.xml');
+
+assert(solve());
+
+
+//problem 10
+
+
+function solution(){
+	$xml=file_get_contents('solution.xml');
+	//print_r($xml);
+	$osrl=new simpleXMLElement($xml);
+	//print_r($osrl);
+	$result=(string)$osrl -> optimization->solution->status->attributes()->type();
+	//print_r($result);
+	$value=(double)$osrl->optimization->solution->objectives->values->obj;
+	//print_r($value);
+	return $value;
+	//AssertEquals("optimal",$result);
+	//problem 11
+	//AssertContains("PARSER ERROR",$xml);
+}
+//solution();
+//assertEquals(solution(),0);
+
+//problem 12
+
+
+
+echo "done";
+
+?>

App/test.xml

@@ -0,0 +1,2 @@
+<?xml version="1.0"?>
+<osil><instanceHeader/><instanceData><objectives><obj numberOfObjCoef="0"/></objectives></instanceData></osil>

WCS/os.php

@@ -6,15 +6,16 @@ class OS {
 	static $DEBUG=FALSE;
 	static $solver="\\WebIS\\bin\OSSolverService.exe";
 	static $tmp="\\WebIS\\tmp\\"; // trailing slash required.
-
+	private $linear=FALSE;
+
 	private $osil=NULL;
 	private $osrl=NULL;
 	private $var=array(); // Reverse IDX mapping ($idx->$name).
 	private $value=NULL;  // Solution value.
+	private $solution=NULL;
 
-	private $linear=FALSE;
 
-	function __construct($maxOrMin='min') {
+	function __construct($maxOrMin='max') {
 		$osil=new \SimpleXMLElement('<osil/>');
 		$osil->addChild('instanceHeader')->addChild('name',php_uname('n').' '.date('c'));
 		$data=$osil->addChild('instanceData');
@@ -42,7 +43,7 @@ function getName(){
 		return (string)$this->osrl->general->instanceName;
 	}
 
-	function addVariable($name,$type=null){
+	function addVariable($name,$type=NULL){
 		$variables=$this->osil->instanceData->variables; // shortcut
 		$this->var[$name]=$variables->var->count(); // $name to $idx (zero based -- preinsert)
 		$var=$variables->addChild('var');
@@ -72,7 +73,7 @@ function addObjCoef($name,$value){
 		$obj['numberOfObjCoef']=$obj->coef->count();
 	}
 
-	function addConstraint($ub=null,$lb=null){
+	function addConstraint($lb,$ub){
 		$constraints=$this->osil->instanceData->constraints;
 		$con=$constraints->addChild('con');
 		if(!is_null($lb)){
@@ -135,7 +136,8 @@ function solve(){
 		$this->osrl=new \SimpleXMLElement($xml);
 		$result=(string)$this->osrl->optimization->solution->status->attributes()->type;
 		if($result!=='optimal'){
-			return FALSE;
+			$this->solution=NULL;
+			return $result;
 		}
 
 		// save values to array
@@ -148,11 +150,12 @@ function solve(){
 			if(self::$DEBUG) print (float)$var."\n";
 		}
 
-		return (double)$this->osrl->optimization->solution->objectives->values->obj;
+		$this->solution=(double)$this->osrl->optimization->solution->objectives->values->obj;
+		return TRUE;
 	}
 
 	function getSolution(){
-		return (double)$solution->objectives->values->obj;
+		return $this->solution;
 	}
 
 }

WCS/osTest.php

@@ -18,29 +18,33 @@ function testOS() {
 
 	function testSolver(){
 		$os=new WebIS\OS();
-		$this->assertEquals(0.0,$os->solve(),"Solve empty problem");
+		$this->assertTrue($os->solve(),"Solve empty problem");
+		$this->assertEquals(0.0,$os->getSolution(),"Solution to empty problem is 0.0");
 		$this->assertContains(date('Y-m-d'),$os->getName(),"Solved today");
 		$os->addVariable('x1');
-		$this->assertEquals(0.0,$os->solve(),"Solve problem with only one variable");
+		$this->assertTrue($os->solve(),"Solve problem with only one variable");
+		$this->assertEquals(0.0,$os->getSolution(),"Solution to one variable is 0.0");
 		$this->assertEquals(0.0,$os->getVariable('x1'),"x1 is zero");
 		$os->addObjCoef('x1', '-1');
-		$this->assertEquals(0.0,$os->solve());
+		$this->assertEquals("unbounded",$os->solve(),"Problem is unbounded");
+		$this->assertEquals(0.0,$os->getSolution());
 		$os->addVariable('x2');
 		$os->addObjCoef('x2', '-2');
-		$os->addConstraint(40);
+		$os->addConstraint(NULL,40);
 		$os->addConstraintCoef('x1',1);
 		$os->addConstraintCoef('x2',1);
-		$os->addConstraint(60);
+		$os->addConstraint(NULL,60);
 		$os->addConstraintCoef('x1',2);
 		$os->addConstraintCoef('x2',1);
-		$this->assertEquals(-80.0,$os->solve());
+		$this->assertTrue($os->solve());
+		$this->assertEquals(-80.0,$os->getSolution());
 		$this->assertEquals(0,$os->getVariable('x1'));
 		$this->assertEquals(40,$os->getVariable('x2'));
 
 		## test LB
 		$os=new WebIS\OS();
 		$os->addVariable('x1');
-		$os->addConstraint(NULL,40);
+		$os->addConstraint(40,NULL);
 		$this->assertContains('lb=',$os->getOsil());
 
 	}

Web/ExamRestart.php

@@ -0,0 +1,28 @@
+<?php
+
+$capacity= array("s1" => 600, "s2" => 300, "s3" => 200);
+//print_r($capacity);
+
+$demand=array("d1"=>600, "d2"=>200, "d3"=>300);
+//print_r($demand);
+
+$profit=array("d1"=>20, "d2"=>30, "d3"=>40);
+//print_r($profit['d1']);
+
+$distance=array("s1,d1"=>2, "s1,d2"=>3, "s1,d3"=>3,"s2,d1"=>5, "s2,d2"=>2, "s2,d3"=>4, "s3,d1"=>3, "s3,d2"=>2, "s3,d3"=>8);
+//print_r($distance['s1,d1']);
+
+$a=$demand['d1']*$profit['d1'];
+//print_r($a);
+$b=$demand['d2']*$profit['d2'];
+$c=$demand['d3']*$profit['d3'];
+
+$revenue=$a+$b+$c;
+//print_r($revenue);
+
+//300 from s1 to d1
+
+//300 from s1 to d3
+
+
+?>