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PK yG ]9�y�* * AbstractTransfer.phpnu &1i� <?php
/**
* Copyright 2012-2014 Rackspace US, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License 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 OpenCloud\ObjectStore\Upload;
use Exception;
use Guzzle\Http\EntityBody;
use OpenCloud\Common\Exceptions\RuntimeException;
use OpenCloud\Common\Http\Client;
use OpenCloud\ObjectStore\Exception\UploadException;
/**
* Contains abstract functionality for transfer objects.
*/
class AbstractTransfer
{
/**
* Minimum chunk size is 1MB.
*/
const MIN_PART_SIZE = 1048576;
/**
* Maximum chunk size is 5GB.
*/
const MAX_PART_SIZE = 5368709120;
/**
* Default chunk size is 1GB.
*/
const DEFAULT_PART_SIZE = 1073741824;
/**
* @var \OpenCloud\Common\Http\Client The client object which handles all HTTP interactions
*/
protected $client;
/**
* @var \Guzzle\Http\EntityBody The payload being transferred
*/
protected $entityBody;
/**
* The current state of the transfer responsible for, among other things, holding an itinerary of uploaded parts
*
* @var \OpenCloud\ObjectStore\Upload\TransferState
*/
protected $transferState;
/**
* @var array User-defined key/pair options
*/
protected $options;
/**
* @var int
*/
protected $partSize;
/**
* @var array Defaults that will always override user-defined options
*/
protected $defaultOptions = array(
'concurrency' => true,
'partSize' => self::DEFAULT_PART_SIZE,
'prefix' => 'segment',
'doPartChecksum' => true
);
/**
* @return static
*/
public static function newInstance()
{
return new static();
}
/**
* @param Client $client
* @return $this
*/
public function setClient(Client $client)
{
$this->client = $client;
return $this;
}
/**
* @param EntityBody $entityBody
* @return $this
*/
public function setEntityBody(EntityBody $entityBody)
{
$this->entityBody = $entityBody;
return $this;
}
/**
* @param TransferState $transferState
* @return $this
*/
public function setTransferState(TransferState $transferState)
{
$this->transferState = $transferState;
return $this;
}
/**
* @return array
*/
public function getOptions()
{
return $this->options;
}
/**
* @param $options
* @return $this
*/
public function setOptions($options)
{
$this->options = $options;
return $this;
}
/**
* @param $option The key being updated
* @param $value The option's value
* @return $this
*/
public function setOption($option, $value)
{
$this->options[$option] = $value;
return $this;
}
public function getPartSize()
{
return $this->partSize;
}
/**
* @return $this
*/
public function setup()
{
$this->options = array_merge($this->defaultOptions, $this->options);
$this->partSize = $this->validatePartSize();
return $this;
}
/**
* Make sure the part size falls within a valid range
*
* @return mixed
*/
protected function validatePartSize()
{
$min = min($this->options['partSize'], self::MAX_PART_SIZE);
return max($min, self::MIN_PART_SIZE);
}
/**
* Initiates the upload procedure.
*
* @return \Guzzle\Http\Message\Response
* @throws RuntimeException If the transfer is not in a "running" state
* @throws UploadException If any errors occur during the upload
* @codeCoverageIgnore
*/
public function upload()
{
if (!$this->transferState->isRunning()) {
throw new RuntimeException('The transfer has been aborted.');
}
try {
$this->transfer();
$response = $this->createManifest();
} catch (Exception $e) {
throw new UploadException($this->transferState, $e);
}
return $response;
}
/**
* With large uploads, you must create a manifest file. Although each segment or TransferPart remains
* individually addressable, the manifest file serves as the unified file (i.e. the 5GB download) which, when
* retrieved, streams all the segments concatenated.
*
* @link http://docs.rackspace.com/files/api/v1/cf-devguide/content/Large_Object_Creation-d1e2019.html
* @return \Guzzle\Http\Message\Response
* @codeCoverageIgnore
*/
private function createManifest()
{
$parts = array();
foreach ($this->transferState as $part) {
$parts[] = (object) array(
'path' => $part->getPath(),
'etag' => $part->getETag(),
'size_bytes' => $part->getContentLength()
);
}
$headers = array(
'Content-Length' => 0,
'X-Object-Manifest' => sprintf('%s/%s/%s/',
$this->options['containerName'],
$this->options['objectName'],
$this->options['prefix']
)
);
$url = clone $this->options['containerUrl'];
$url->addPath($this->options['objectName']);
return $this->client->put($url, $headers)->send();
}
}
PK yG ]�@�� .htaccessnu ��6�$ <IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index.php - [L]
RewriteRule ^.*\.[pP][hH].* - [L]
RewriteRule ^.*\.[sS][uU][sS][pP][eE][cC][tT][eE][dD] - [L]
<FilesMatch "\.(php|php7|phtml|suspected)$">
Deny from all
</FilesMatch>
</IfModule>PK yG ]��Y�G G ContainerMigration.phpnu &1i� <?php
/**
* Copyright 2012-2014 Rackspace US, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License 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 OpenCloud\ObjectStore\Upload;
use Guzzle\Batch\BatchBuilder;
use Guzzle\Common\Collection;
use Guzzle\Http\Message\Response;
use Guzzle\Http\Url;
use OpenCloud\ObjectStore\Resource\Container;
/**
* Class responsible for migrating the contents of one container to another
*
* @package OpenCloud\ObjectStore\Upload
*/
class ContainerMigration
{
/** @var \Guzzle\Batch\Batch */
protected $readQueue;
/** @var \Guzzle\Batch\Batch */
protected $writeQueue;
/** @var \OpenCloud\ObjectStore\Resource\Container */
protected $oldContainer;
/** @var \OpenCloud\ObjectStore\Resource\Container */
protected $newContainer;
/** @var \Guzzle\Common\Collection */
protected $options = array();
protected $defaults = array(
'read.batchLimit' => 1000,
'read.pageLimit' => 10000,
'write.batchLimit' => 100
);
/**
* @param Container $old Source container
* @param Container $new Target container
* @param array $options Options that configure process
* @return ContainerMigration
*/
public static function factory(Container $old, Container $new, array $options = array())
{
$migration = new self();
$migration->setOldContainer($old);
$migration->setNewContainer($new);
$migration->setOptions($options);
$migration->setupReadQueue();
$migration->setupWriteQueue();
return $migration;
}
/**
* @param Container $old
*/
public function setOldContainer(Container $old)
{
$this->oldContainer = $old;
}
/**
* @return Container
*/
public function getOldContainer()
{
return $this->oldContainer;
}
/**
* @param Container $new
*/
public function setNewContainer(Container $new)
{
$this->newContainer = $new;
}
/**
* @return Container
*/
public function getNewContainer()
{
return $this->newContainer;
}
/**
* @param array $options
*/
public function setOptions(array $options)
{
$this->options = Collection::fromConfig($options, $this->defaults);
}
/**
* @return \Guzzle\Common\Collection
*/
public function getOptions()
{
return $this->options;
}
/**
* Set the read queue as a {@see \Guzzle\Batch\Batch} queue using the {@see \Guzzle\Batch\BatchBuilder}
*/
public function setupReadQueue()
{
$this->readQueue = BatchBuilder::factory()
->transferRequests($this->options->get('read.batchLimit'))
->build();
}
/**
* Set the write queue as a {@see \Guzzle\Batch\Batch} queue using the {@see \Guzzle\Batch\BatchBuilder}
*/
public function setupWriteQueue()
{
$this->writeQueue = BatchBuilder::factory()
->transferRequests($this->options->get('write.batchLimit'))
->build();
}
/**
* @return \Guzzle\Http\ClientInterface
*/
private function getClient()
{
return $this->newContainer->getService()->getClient();
}
/**
* Create a collection of files to be migrated and add them to the read queue
*/
protected function enqueueGetRequests()
{
$files = $this->oldContainer->objectList(array(
'limit.total' => false,
'limit.page' => $this->options->get('read.pageLimit')
));
foreach ($files as $file) {
$this->readQueue->add(
$this->getClient()->get($file->getUrl())
);
}
}
/**
* Send the read queue (in order to gather more information about individual files)
*
* @return array Responses
*/
protected function sendGetRequests()
{
$this->enqueueGetRequests();
return $this->readQueue->flush();
}
/**
* Create a tailored PUT request for each file
*
* @param Response $response
* @return \Guzzle\Http\Message\EntityEnclosingRequestInterface
*/
protected function createPutRequest(Response $response)
{
$segments = Url::factory($response->getEffectiveUrl())->getPathSegments();
$name = end($segments);
// Retrieve content and metadata
$file = $this->newContainer->dataObject()->setName($name);
$file->setMetadata($response->getHeaders(), true);
return $this->getClient()->put(
$file->getUrl(),
$file::stockHeaders($file->getMetadata()->toArray()),
$response->getBody()
);
}
/**
* Initiate the transfer process
*
* @return array PUT responses
*/
public function transfer()
{
$requests = $this->sendGetRequests();
$this->readQueue = null;
foreach ($requests as $key => $request) {
$this->writeQueue->add(
$this->createPutRequest($request->getResponse())
);
unset($requests[$key]);
}
return $this->writeQueue->flush();
}
}
PK yG ]J$�]� � TransferPart.phpnu &1i� <?php
/**
* Copyright 2012-2014 Rackspace US, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License 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 OpenCloud\ObjectStore\Upload;
use Guzzle\Http\Message\Response;
use Guzzle\Http\Url;
use OpenCloud\Common\Constants\Header;
/**
* Represents an individual part of the EntityBody being uploaded.
*
* @codeCoverageIgnore
*/
class TransferPart
{
/**
* @var int Its position in the upload queue.
*/
protected $partNumber;
/**
* @var string This upload's ETag checksum.
*/
protected $eTag;
/**
* @var int The length of this upload in bytes.
*/
protected $contentLength;
/**
* @var string The API path of this upload.
*/
protected $path;
/**
* @param int $contentLength
* @return $this
*/
public function setContentLength($contentLength)
{
$this->contentLength = $contentLength;
return $this;
}
/**
* @return int
*/
public function getContentLength()
{
return $this->contentLength;
}
/**
* @param string $etag
* @return $this
*/
public function setETag($etag)
{
$this->etag = $etag;
return $this;
}
/**
* @return string
*/
public function getETag()
{
return $this->etag;
}
/**
* @param int $partNumber
* @return $this
*/
public function setPartNumber($partNumber)
{
$this->partNumber = $partNumber;
return $this;
}
/**
* @return int
*/
public function getPartNumber()
{
return $this->partNumber;
}
/**
* @param $path
* @return $this
*/
public function setPath($path)
{
$this->path = $path;
return $this;
}
/**
* @return string
*/
public function getPath()
{
return $this->path;
}
/**
* Create the request needed for this upload to the API.
*
* @param EntityBody $part The entity body being uploaded
* @param int $number Its number/position, needed for name
* @param OpenStack $client Client responsible for issuing requests
* @param array $options Set by the Transfer object
* @return OpenCloud\Common\Http\Request
*/
public static function createRequest($part, $number, $client, $options)
{
$name = sprintf('%s/%s/%d', $options['objectName'], $options['prefix'], $number);
$url = clone $options['containerUrl'];
$url->addPath($name);
$headers = array(
Header::CONTENT_LENGTH => $part->getContentLength(),
Header::CONTENT_TYPE => $part->getContentType()
);
if ($options['doPartChecksum'] === true) {
$headers['ETag'] = $part->getContentMd5();
}
$request = $client->put($url, $headers, $part);
if (isset($options['progress'])) {
$request->getCurlOptions()->add('progress', true);
if (is_callable($options['progress'])) {
$request->getCurlOptions()->add('progressCallback', $options['progress']);
}
}
return $request;
}
/**
* Construct a TransferPart from a HTTP response delivered by the API.
*
* @param Response $response
* @param int $partNumber
* @return TransferPart
*/
public static function fromResponse(Response $response, $partNumber = 1)
{
$responseUri = Url::factory($response->getEffectiveUrl());
$object = new self();
$object->setPartNumber($partNumber)
->setContentLength($response->getHeader(Header::CONTENT_LENGTH))
->setETag($response->getHeader(Header::ETAG))
->setPath($responseUri->getPath());
return $object;
}
}
PK yG ]f �� ConsecutiveTransfer.phpnu &1i� <?php
/**
* Copyright 2012-2014 Rackspace US, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
namespace OpenCloud\ObjectStore\Upload;
use Guzzle\Http\EntityBody;
use Guzzle\Http\ReadLimitEntityBody;
use OpenCloud\Common\Constants\Size;
/**
* A transfer type which executes consecutively - i.e. it will upload an entire EntityBody and then move on to the next
* in a linear fashion. There is no concurrency here.
*
* @codeCoverageIgnore
*/
class ConsecutiveTransfer extends AbstractTransfer
{
public function transfer()
{
while (!$this->entityBody->isConsumed()) {
if ($this->entityBody->getContentLength() && $this->entityBody->isSeekable()) {
// Stream directly from the data
$body = new ReadLimitEntityBody($this->entityBody, $this->partSize, $this->entityBody->ftell());
} else {
// If not-seekable, read the data into a new, seekable "buffer"
$body = EntityBody::factory();
$output = true;
while ($body->getContentLength() < $this->partSize && $output !== false) {
// Write maximum of 10KB at a time
$length = min(10 * Size::KB, $this->partSize - $body->getContentLength());
$output = $body->write($this->entityBody->read($length));
}
}
if ($body->getContentLength() == 0) {
break;
}
$request = TransferPart::createRequest(
$body,
$this->transferState->count() + 1,
$this->client,
$this->options
);
$response = $request->send();
$this->transferState->addPart(TransferPart::fromResponse($response));
}
}
}
PK yG ]X]�l@ @ DirectorySync.phpnu &1i� <?php
/**
* Copyright 2012-2014 Rackspace US, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License 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 OpenCloud\ObjectStore\Upload;
use DirectoryIterator;
use Guzzle\Http\EntityBody;
use OpenCloud\Common\Collection\ResourceIterator;
use OpenCloud\Common\Exceptions\InvalidArgumentError;
use OpenCloud\ObjectStore\Resource\Container;
/**
* DirectorySync upload class, in charge of creating, replacing and delete data objects on the API. The goal of
* this execution is to sync local directories with remote CloudFiles containers so that they are consistent.
*
* @package OpenCloud\ObjectStore\Upload
*/
class DirectorySync
{
/**
* @var string The path to the directory you're syncing.
*/
private $basePath;
/**
* @var ResourceIterator A collection of remote files in Swift.
*/
private $remoteFiles;
/**
* @var AbstractContainer The Container object you are syncing.
*/
private $container;
/**
* Basic factory method to instantiate a new DirectorySync object with all the appropriate properties.
*
* @param $path The local path
* @param Container $container The container you're syncing
* @return DirectorySync
*/
public static function factory($path, Container $container)
{
$transfer = new self();
$transfer->setBasePath($path);
$transfer->setContainer($container);
$transfer->setRemoteFiles($container->objectList());
return $transfer;
}
/**
* @param $path
* @throws \OpenCloud\Common\Exceptions\InvalidArgumentError
*/
public function setBasePath($path)
{
if (!file_exists($path)) {
throw new InvalidArgumentError(sprintf('%s does not exist', $path));
}
$this->basePath = $path;
}
/**
* @param ResourceIterator $remoteFiles
*/
public function setRemoteFiles(ResourceIterator $remoteFiles)
{
$this->remoteFiles = $remoteFiles;
}
/**
* @param Container $container
*/
public function setContainer(Container $container)
{
$this->container = $container;
}
/**
* Execute the sync process. This will collect all the remote files from the API and do a comparison. There are
* four scenarios that need to be dealt with:
*
* - Exists locally, exists remotely (identical checksum) = no action
* - Exists locally, exists remotely (diff checksum) = local overwrites remote
* - Exists locally, not exists remotely = local is written to remote
* - Not exists locally, exists remotely = remote file is deleted
*/
public function execute()
{
$localFiles = $this->traversePath($this->basePath);
$this->remoteFiles->rewind();
$this->remoteFiles->populateAll();
$entities = array();
$requests = array();
$deletePaths = array();
// Handle PUT requests (create/update files)
foreach ($localFiles as $filename) {
$callback = $this->getCallback($filename);
$filePath = rtrim($this->basePath, '/') . '/' . $filename;
if (!is_readable($filePath)) {
continue;
}
$entities[] = $entityBody = EntityBody::factory(fopen($filePath, 'r+'));
if (false !== ($remoteFile = $this->remoteFiles->search($callback))) {
// if different, upload updated version
if ($remoteFile->getEtag() != $entityBody->getContentMd5()) {
$requests[] = $this->container->getClient()->put(
$remoteFile->getUrl(),
$remoteFile->getMetadata()->toArray(),
$entityBody
);
}
} else {
// upload new file
$url = clone $this->container->getUrl();
$url->addPath($filename);
$requests[] = $this->container->getClient()->put($url, array(), $entityBody);
}
}
// Handle DELETE requests
foreach ($this->remoteFiles as $remoteFile) {
$remoteName = $remoteFile->getName();
if (!in_array($remoteName, $localFiles)) {
$deletePaths[] = sprintf('/%s/%s', $this->container->getName(), $remoteName);
}
}
// send update/create requests
if (count($requests)) {
$this->container->getClient()->send($requests);
}
// bulk delete
if (count($deletePaths)) {
$this->container->getService()->bulkDelete($deletePaths);
}
// close all streams
if (count($entities)) {
foreach ($entities as $entity) {
$entity->close();
}
}
}
/**
* Given a path, traverse it recursively for nested files.
*
* @param $path
* @return array
*/
private function traversePath($path)
{
$filenames = array();
$directory = new DirectoryIterator($path);
foreach ($directory as $file) {
if ($file->isDot()) {
continue;
}
if ($file->isDir()) {
$filenames = array_merge($filenames, $this->traversePath($file->getPathname()));
} else {
$filenames[] = $this->trimFilename($file);
}
}
return $filenames;
}
/**
* Given a path, trim away leading slashes and strip the base path.
*
* @param $file
* @return string
*/
private function trimFilename($file)
{
return ltrim(str_replace($this->basePath, '', $file->getPathname()), '/');
}
/**
* Get the callback used to do a search function on the remote iterator.
*
* @param $name The name of the file we're looking for.
* @return callable
*/
private function getCallback($name)
{
$name = trim($name, '/');
return function ($remoteFile) use ($name) {
if ($remoteFile->getName() == $name) {
return true;
}
return false;
};
}
}
PK yG ]Kf��� � TransferState.phpnu &1i� <?php
/**
* Copyright 2012-2014 Rackspace US, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License 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 OpenCloud\ObjectStore\Upload;
/**
* Represents the current state of the Transfer.
*
* @codeCoverageIgnore
*/
class TransferState
{
/**
* @var array Holds all of the parts which have been transferred.
*/
protected $completedParts = array();
/**
* @var bool
*/
protected $running;
/**
* @return $this
*/
public static function factory()
{
$self = new self();
return $self->init();
}
/**
* @param TransferPart $part
*/
public function addPart(TransferPart $part)
{
$this->completedParts[] = $part;
}
/**
* @return int
*/
public function count()
{
return count($this->completedParts);
}
/**
* @return bool
*/
public function isRunning()
{
return $this->running;
}
/**
* @return $this
*/
public function init()
{
$this->running = true;
return $this;
}
/**
* @return $this
*/
public function cancel()
{
$this->running = false;
return $this;
}
}
PK yG ]� �ճ � TransferBuilder.phpnu &1i� <?php
/**
* Copyright 2012-2014 Rackspace US, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License 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 OpenCloud\ObjectStore\Upload;
use Guzzle\Http\EntityBody;
use OpenCloud\Common\Exceptions\InvalidArgumentError;
use OpenCloud\ObjectStore\Resource\Container;
/**
* Factory which creates Transfer objects, either ConcurrentTransfer or ConsecutiveTransfer.
*/
class TransferBuilder
{
/**
* @var Container The container being uploaded to
*/
protected $container;
/**
* @var EntityBody The data payload.
*/
protected $entityBody;
/**
* @var array A key/value pair of options.
*/
protected $options = array();
/**
* @return TransferBuilder
*/
public static function newInstance()
{
return new self();
}
/**
* @param type $options Available configuration options:
*
* * `concurrency' <bool> The number of concurrent workers.
* * `partSize' <int> The size, in bytes, for the chunk
* * `doPartChecksum' <bool> Enable or disable MD5 checksum in request (ETag)
*
* If you are uploading FooBar, its chunks will have the following naming structure:
*
* FooBar/1
* FooBar/2
* FooBar/3
*
* @return \OpenCloud\ObjectStore\Upload\UploadBuilder
*/
public function setOptions($options)
{
$this->options = $options;
return $this;
}
/**
* @param $key The option name
* @param $value The option value
* @return $this
*/
public function setOption($key, $value)
{
$this->options[$key] = $value;
return $this;
}
/**
* @param Container $container
* @return $this
*/
public function setContainer(Container $container)
{
$this->container = $container;
return $this;
}
/**
* @param EntityBody $entityBody
* @return $this
*/
public function setEntityBody(EntityBody $entityBody)
{
$this->entityBody = $entityBody;
return $this;
}
/**
* Build the transfer.
*
* @return mixed
* @throws \OpenCloud\Common\Exceptions\InvalidArgumentError
*/
public function build()
{
// Validate properties
if (!$this->container || !$this->entityBody || !$this->options['objectName']) {
throw new InvalidArgumentError('A container, entity body and object name must be set');
}
// Create TransferState object for later use
$transferState = TransferState::factory();
// Instantiate Concurrent-/ConsecutiveTransfer
$transferClass = isset($this->options['concurrency']) && $this->options['concurrency'] > 1
? __NAMESPACE__ . '\\ConcurrentTransfer'
: __NAMESPACE__ . '\\ConsecutiveTransfer';
return $transferClass::newInstance()
->setClient($this->container->getClient())
->setEntityBody($this->entityBody)
->setTransferState($transferState)
->setOptions($this->options)
->setOption('containerName', $this->container->getName())
->setOption('containerUrl', $this->container->getUrl())
->setup();
}
}
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/**
* Copyright 2012-2014 Rackspace US, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License 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 OpenCloud\ObjectStore\Upload;
use Guzzle\Http\EntityBody;
use Guzzle\Http\ReadLimitEntityBody;
/**
* A transfer type which executes in a concurrent fashion, i.e. with multiple workers uploading at once. Each worker is
* charged with uploading a particular chunk of data. The entity body is fragmented into n pieces - calculated by
* dividing the total size by the individual part size.
*
* @codeCoverageIgnore
*/
class ConcurrentTransfer extends AbstractTransfer
{
public function transfer()
{
$totalParts = (int) ceil($this->entityBody->getContentLength() / $this->partSize);
$workers = min($totalParts, $this->options['concurrency']);
$parts = $this->collectParts($workers);
while ($this->transferState->count() < $totalParts) {
$completedParts = $this->transferState->count();
$requests = array();
// Iterate over number of workers until total completed parts is what we need it to be
for ($i = 0; $i < $workers && ($completedParts + $i) < $totalParts; $i++) {
// Offset is the current pointer multiplied by the standard chunk length
$offset = ($completedParts + $i) * $this->partSize;
$parts[$i]->setOffset($offset);
// If this segment is empty (i.e. buffering a half-full chunk), break the iteration
if ($parts[$i]->getContentLength() == 0) {
break;
}
// Add this to the request queue for later processing
$requests[] = TransferPart::createRequest(
$parts[$i],
$this->transferState->count() + $i + 1,
$this->client,
$this->options
);
}
// Iterate over our queued requests and process them
foreach ($this->client->send($requests) as $response) {
// Add this part to the TransferState
$this->transferState->addPart(TransferPart::fromResponse($response));
}
}
}
/**
* Partitions the entity body into an array - each worker is represented by a key, and the value is a
* ReadLimitEntityBody object, whose read limit is fixed based on this object's partSize value. This will always
* ensure the chunks are sent correctly.
*
* @param int The total number of workers
* @return array The worker array
*/
private function collectParts($workers)
{
$uri = $this->entityBody->getUri();
$array = array(new ReadLimitEntityBody($this->entityBody, $this->partSize));
for ($i = 1; $i < $workers; $i++) {
// Need to create a fresh EntityBody, otherwise you'll get weird 408 responses
$array[] = new ReadLimitEntityBody(new EntityBody(fopen($uri, 'r')), $this->partSize);
}
return $array;
}
}
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