Archivr\Vault::synchronize()

Complexity

Conditions	8
Paths	34

Size

Total Lines	101
Code Lines	50

Duplication

Lines	11
Ratio	10.89 %

Importance

Changes

0

<?php
    public function synchronize(int $newRevision = null, SynchronizationProgressListenerInterface $progressionListener = null): OperationResultCollection
    {
        if ($progressionListener === null)
        {
            $progressionListener = new DummySynchronizationProgressListener();
        }

        $localIndex = $this->buildLocalIndex();
        $lastLocalIndex = $this->loadLastLocalIndex();


        if (!$this->getLockAdapter()->acquireLock(static::LOCK_SYNC))
        {
            throw new Exception('Failed to acquire lock.');
        }


        $synchronizationList = $this->loadSynchronizationList();
        $lastSynchronization = $synchronizationList->getLastSynchronization();

        if ($lastSynchronization)
        {
            $newRevision = $newRevision ?: ($lastSynchronization->getRevision() + 1);
            $remoteIndex = $this->doLoadRemoteIndex($lastSynchronization->getRevision(), $synchronizationList);
        }
        else
        {
            $newRevision = $newRevision ?: 1;
            $remoteIndex = null;
        }

        $synchronization = new Synchronization($newRevision, $this->generateNewBlobId(), new \DateTime(), $this->identity);
        $synchronizationList->addSynchronization($synchronization);


        $mergedIndex = $this->doBuildMergedIndex($localIndex, $lastLocalIndex, $remoteIndex);
        $operationCollection = $this->doGetOperationCollection($localIndex, $remoteIndex, $mergedIndex);

        $operationResultCollection = new OperationResultCollection();

        // operation count +
        // merged index write +
        // copy merged index to vault +
        // save merged index as last local index +
        // upload synchronization list +
        // release lock
        $progressionListener->start(count($operationCollection) + 5);

        foreach ($operationCollection as $operation)

This code seems to be duplicated across your project.

        {
            /** @var OperationInterface $operation */

            $success = $operation->execute();

            $operationResult = new OperationResult($operation, $success);
            $operationResultCollection->addOperationResult($operationResult);

            $progressionListener->advance();
        }

        // dump new index
        $mergedIndexFilePath = tempnam(sys_get_temp_dir(), 'index');
        $this->writeIndexToFile($mergedIndex, $mergedIndexFilePath);

        $progressionListener->advance();

        // upload new index
        $readStream = fopen($mergedIndexFilePath, 'rb');
        $compressionFilter = stream_filter_append($readStream, 'zlib.deflate');
        $this->vaultConnection->writeStream($synchronization->getBlobId(), $readStream);
        rewind($readStream);
        stream_filter_remove($compressionFilter);

        $progressionListener->advance();

        // save new index locally
        $writeStream = fopen($this->getLastLocalIndexFilePath(), 'wb');
        stream_copy_to_stream($readStream, $writeStream);
        fclose($writeStream);
        fclose($readStream);

        $progressionListener->advance();

        // upload new synchronization list
        $synchronizationListFilePath = $this->writeSynchronizationListToTemporaryFile($synchronizationList);
        $readStream = fopen($synchronizationListFilePath, 'rb');
        stream_filter_append($readStream, 'zlib.deflate');
        $this->vaultConnection->writeStream(static::SYNCHRONIZATION_LIST_FILE_NAME, $readStream);
        fclose($readStream);

        // release lock
        if (!$this->getLockAdapter()->releaseLock(static::LOCK_SYNC))
        {
            throw new Exception('Failed to release lock.');
        }

        $progressionListener->advance();
        $progressionListener->finish();

        return $operationResultCollection;
    }