/**
* @param string $key
* @param long $seed
* @param array $partitions
* @return null|string
*/
public static function getTreatment($key, $seed, $partitions)
{
$logMsg = "Splitter evaluating partitions ... \n\n Bucketing Key: {$key} \n\n Seed: {$seed} \n\n Partitions: " . print_r($partitions, true);
SplitApp::logger()->debug($logMsg);
$bucket = abs(\SplitIO\hash($key, $seed) % 100) + 1;
SplitApp::logger()->info("Butcket: " . $bucket);
$accumulatedSize = 0;
foreach ($partitions as $partition) {
if ($partition instanceof Partition) {
$accumulatedSize += $partition->getSize();
if ($bucket <= $accumulatedSize) {
return $partition->getTreatment();
}
}
}
return null;
}
public function testHashFunction()
{
$handle = fopen(__DIR__ . "/../../files/sample-data.csv", "r");
if ($handle) {
while (($line = fgets($handle)) !== false) {
$_line = explode(',', $line);
if ($_line[0] == '#seed') {
continue;
}
$hash = \SplitIO\splitHash($_line[1], $_line[0]);
$bucket = abs(\SplitIO\hash($_line[1], $_line[0]) % 100) + 1;
$this->assertEquals((int) $_line[2], (int) $hash, "Hash, Expected: " . $_line[2] . " Calculated: " . $hash);
$this->assertEquals((int) $_line[3], (int) $bucket, "Bucket, Expected: " . $_line[3] . " Calculated: " . $bucket);
}
fclose($handle);
} else {
$this->assertTrue(false, "Sample Data not found");
}
}