/**
* @covers Aws\Glacier\Model\MultipartUpload\UploadPartContext::isEmpty
* @covers Aws\Glacier\Model\MultipartUpload\UploadPartContext::isFull
*/
public function testIsEmptyAndFullAsExpected()
{
$context = new UploadPartContext(10);
$this->assertTrue($context->isEmpty());
$this->assertFalse($context->isFull());
$this->assertEquals(0, $this->readAttribute($context, 'size'));
$context->addData('abcde');
$this->assertFalse($context->isEmpty());
$this->assertFalse($context->isFull());
$this->assertEquals(5, $this->readAttribute($context, 'size'));
$context->addData('fghij');
$this->assertFalse($context->isEmpty());
$this->assertTrue($context->isFull());
$this->assertEquals(10, $this->readAttribute($context, 'size'));
}
/**
* Performs the work of reading the body stream, creating tree hashes, and creating UploadPartContext objects
*
* @param EntityBodyInterface $body The body to create parts from
*/
protected function generateUploadParts(EntityBodyInterface $body)
{
// Rewind the body stream
$body->seek(0);
// Initialize variables for tracking data for upload
$uploadContext = new UploadPartContext($this->partSize, $body->ftell());
// Read the data from the streamed body in 1MB chunks
$data = $this->readPart($body);
while (strlen($data) > 0) {
// Add data to the hashes and size calculations
$uploadContext->addData($data);
// If the upload part is complete, generate an upload object and reset the currently tracked upload data
if ($uploadContext->isFull()) {
$this->updateTotals($uploadContext->generatePart());
$uploadContext = new UploadPartContext($this->partSize, $body->ftell());
}
$data = $this->readPart($body);
}
// Handle any leftover data
if (!$uploadContext->isEmpty()) {
$this->updateTotals($uploadContext->generatePart());
}
// Rewind the body stream
$body->seek(0);
}