87 lines
3.1 KiB
PHP
87 lines
3.1 KiB
PHP
<?php
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/**
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* Copyright 2010-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License").
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* You may not use this file except in compliance with the License.
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* A copy of the License is located at
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*
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* http://aws.amazon.com/apache2.0
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*
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* or in the "license" file accompanying this file. This file is distributed
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* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
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* express or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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namespace Aws\S3\Model\MultipartUpload;
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use Aws\Common\Enum\DateFormat;
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use Aws\Common\Enum\Size;
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use Aws\Common\Enum\UaString as Ua;
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use Guzzle\Http\EntityBody;
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use Guzzle\Http\ReadLimitEntityBody;
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/**
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* Transfers multipart upload parts serially
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*/
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class SerialTransfer extends AbstractTransfer
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{
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/**
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* {@inheritdoc}
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*/
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protected function transfer()
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{
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while (!$this->stopped && !$this->source->isConsumed()) {
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if ($this->source->getContentLength() && $this->source->isSeekable()) {
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// If the stream is seekable and the Content-Length known, then stream from the data source
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$body = new ReadLimitEntityBody($this->source, $this->partSize, $this->source->ftell());
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} else {
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// We need to read the data source into a temporary buffer before streaming
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$body = EntityBody::factory();
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while ($body->getContentLength() < $this->partSize
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&& $body->write(
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$this->source->read(max(1, min(10 * Size::KB, $this->partSize - $body->getContentLength())))
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));
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}
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// @codeCoverageIgnoreStart
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if ($body->getContentLength() == 0) {
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break;
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}
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// @codeCoverageIgnoreEnd
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$params = $this->state->getUploadId()->toParams();
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$command = $this->client->getCommand('UploadPart', array_replace($params, array(
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'PartNumber' => count($this->state) + 1,
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'Body' => $body,
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'ContentMD5' => (bool) $this->options['part_md5'],
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Ua::OPTION => Ua::MULTIPART_UPLOAD
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)));
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// Notify observers that the part is about to be uploaded
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$eventData = $this->getEventData();
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$eventData['command'] = $command;
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$this->dispatch(self::BEFORE_PART_UPLOAD, $eventData);
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// Allow listeners to stop the transfer if needed
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if ($this->stopped) {
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break;
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}
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$response = $command->getResponse();
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$this->state->addPart(UploadPart::fromArray(array(
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'PartNumber' => count($this->state) + 1,
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'ETag' => $response->getEtag(),
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'Size' => $body->getContentLength(),
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'LastModified' => gmdate(DateFormat::RFC2822)
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)));
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// Notify observers that the part was uploaded
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$this->dispatch(self::AFTER_PART_UPLOAD, $eventData);
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}
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}
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}
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