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<?php
/**
* Copyright 2010-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
namespace Aws\S3\Sync;
use Aws\Common\Exception\RuntimeException;
use Aws\Common\Model\MultipartUpload\AbstractTransfer;
use Aws\S3\ResumableDownload;
use Aws\S3\S3Client;
use Guzzle\Common\Event;
use Guzzle\Http\EntityBodyInterface;
use Guzzle\Service\Command\CommandInterface;
class DownloadSyncBuilder extends AbstractSyncBuilder
{
/** @var bool */
protected $resumable = false;
/** @var string */
protected $directory;
/** @var int Number of files that can be transferred concurrently */
protected $concurrency = 5;
/**
* Set the directory where the objects from be downloaded to
*
* @param string $directory Directory
*
* @return self
*/
public function setDirectory($directory)
{
$this->directory = $directory;
return $this;
}
/**
* Call this function to allow partial downloads to be resumed if the download was previously interrupted
*
* @return self
*/
public function allowResumableDownloads()
{
$this->resumable = true;
return $this;
}
protected function specificBuild()
{
$sync = new DownloadSync(array(
'client' => $this->client,
'bucket' => $this->bucket,
'iterator' => $this->sourceIterator,
'source_converter' => $this->sourceConverter,
'target_converter' => $this->targetConverter,
'concurrency' => $this->concurrency,
'resumable' => $this->resumable,
'directory' => $this->directory
));
return $sync;
}
protected function getTargetIterator()
{
if (!$this->directory) {
throw new RuntimeException('A directory is required');
}
if (!is_dir($this->directory) && !mkdir($this->directory, 0777, true)) {
// @codeCoverageIgnoreStart
throw new RuntimeException('Unable to create root download directory: ' . $this->directory);
// @codeCoverageIgnoreEnd
}
return $this->filterIterator(
new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($this->directory))
);
}
protected function getDefaultSourceConverter()
{
return new KeyConverter(
"s3://{$this->bucket}/{$this->baseDir}",
$this->directory . DIRECTORY_SEPARATOR, $this->delimiter
);
}
protected function getDefaultTargetConverter()
{
return new KeyConverter("s3://{$this->bucket}/{$this->baseDir}", '', $this->delimiter);
}
protected function assertFileIteratorSet()
{
$this->sourceIterator = $this->sourceIterator ?: $this->createS3Iterator();
}
protected function addDebugListener(AbstractSync $sync, $resource)
{
$sync->getEventDispatcher()->addListener(UploadSync::BEFORE_TRANSFER, function (Event $e) use ($resource) {
if ($e['command'] instanceof CommandInterface) {
$from = $e['command']['Bucket'] . '/' . $e['command']['Key'];
$to = $e['command']['SaveAs'] instanceof EntityBodyInterface
? $e['command']['SaveAs']->getUri()
: $e['command']['SaveAs'];
fwrite($resource, "Downloading {$from} -> {$to}\n");
} elseif ($e['command'] instanceof ResumableDownload) {
$from = $e['command']->getBucket() . '/' . $e['command']->getKey();
$to = $e['command']->getFilename();
fwrite($resource, "Resuming {$from} -> {$to}\n");
}
});
}
}
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