public async Task <FileSystemInfoContract> MoveItemAsync(RootName root, FileSystemId source, string moveName, DirectoryId destination, Func <FileSystemInfoLocator> locatorResolver)
{
// Emulate MoveItem through CopyItem + RemoveItem
var context = await RequireContextAsync(root);
var sourceObjectId = new StorageObjectId(source.Value);
var destinationObjectId = new StorageObjectId(destination.Value);
var directorySource = source as DirectoryId;
if (directorySource != null)
{
moveName += Path.AltDirectorySeparatorChar;
}
var item = await retryPolicy.ExecuteAsync(() => context.Client.CopyObjectAsync(sourceObjectId.Bucket, sourceObjectId.Path, destinationObjectId.Bucket, $"{destinationObjectId.Path}{moveName}"));
if (directorySource != null)
{
var subDestination = new DirectoryId(item.Id);
foreach (var subItem in await GetChildItemAsync(root, directorySource))
{
await retryPolicy.ExecuteAsync(() => MoveItemAsync(root, subItem.Id, subItem.Name, subDestination, locatorResolver));
}
}
await retryPolicy.ExecuteAsync(() => context.Client.DeleteObjectAsync(sourceObjectId.Bucket, sourceObjectId.Path));
return(item.ToFileSystemInfoContract());
}
public async Task <DirectoryInfoContract> NewDirectoryItemAsync(RootName root, DirectoryId parent, string name)
{
var context = await RequireContextAsync(root);
var parentObjectId = new StorageObjectId(parent.Value);
var item = await retryPolicy.ExecuteAsync(() => context.Client.UploadObjectAsync(parentObjectId.Bucket, $"{parentObjectId.Path}{name}/", null, new MemoryStream()));
return(new DirectoryInfoContract(item.Id, item.Name.Substring(parentObjectId.Path.Length), new DateTimeOffset(item.TimeCreated.Value), new DateTimeOffset(item.Updated.Value)));
}
public async Task <bool> ClearContentAsync(RootName root, FileId target, Func <FileSystemInfoLocator> locatorResolver)
{
var context = await RequireContextAsync(root);
var targetObjectId = new StorageObjectId(target.Value);
await retryPolicy.ExecuteAsync(() => context.Client.UploadObjectAsync(targetObjectId.Bucket, targetObjectId.Path, MIME_TYPE_FILE, new MemoryStream()));
return(true);
}
public async Task <Stream> GetContentAsync(RootName root, FileId source)
{
var context = await RequireContextAsync(root);
var sourceObjectId = new StorageObjectId(source.Value);
var stream = new MemoryStream();
await context.Client.DownloadObjectAsync(sourceObjectId.Bucket, sourceObjectId.Path, stream);
stream.Seek(0, SeekOrigin.Begin);
return(stream);
}
public async Task <bool> SetContentAsync(RootName root, FileId target, Stream content, IProgress <ProgressValue> progress, Func <FileSystemInfoLocator> locatorResolver)
{
var context = await RequireContextAsync(root);
var targetObjectId = new StorageObjectId(target.Value);
var uploadProgress = progress != null ? new UploadProgress(progress, (int)content.Length) : null;
var retryPolicyWithAction = Policy.Handle <GoogleApiException>().WaitAndRetryAsync(5, retryAttempt => TimeSpan.FromSeconds(Math.Pow(2, retryAttempt)),
(ex, ts) => content.Seek(0, SeekOrigin.Begin));
await retryPolicyWithAction.ExecuteAsync(() => context.Client.UploadObjectAsync(targetObjectId.Bucket, targetObjectId.Path, MIME_TYPE_FILE, content, progress: uploadProgress));
return(true);
}
public async Task <bool> SetContentAsync(RootName root, FileId target, Stream content, IProgress <ProgressValue> progress, Func <FileSystemInfoLocator> locatorResolver)
{
var context = await RequireContextAsync(root);
var targetObjectId = new StorageObjectId(target.Value);
var uploadProgress = progress != null ? new UploadProgress(progress, (int)content.Length) : null;
await context.Client.UploadObjectAsync(targetObjectId.Bucket, targetObjectId.Path, MIME_TYPE_FILE, content, progress : uploadProgress);
return(true);
}
public async Task <IEnumerable <FileSystemInfoContract> > GetChildItemAsync(RootName root, DirectoryId parent)
{
var context = await RequireContextAsync(root);
var parentObjectId = new StorageObjectId(parent.Value);
var items = await retryPolicy.ExecuteAsync(() => context.Client.ListObjectsAsync(parentObjectId.Bucket, parentObjectId.Path).Where(i =>
{
var childName = i.Name.Substring(parentObjectId.Path.Length).TrimEnd(Path.AltDirectorySeparatorChar);
return(!string.IsNullOrEmpty(childName) && !childName.Contains(Path.AltDirectorySeparatorChar));
}).ToList());
return(items.Select(i => i.ToFileSystemInfoContract()));
}
public async Task <Stream> GetContentAsync(RootName root, FileId source)
{
var context = await RequireContextAsync(root);
var sourceObjectId = new StorageObjectId(source.Value);
var stream = new ProducerConsumerStream();
var retryPolicyWithAction = Policy.Handle <GoogleApiException>().WaitAndRetryAsync(5, retryAttempt => TimeSpan.FromSeconds(Math.Pow(2, retryAttempt)),
(ex, ts) => stream.Reset());
await retryPolicyWithAction.ExecuteAsync(() => context.Client.DownloadObjectAsync(sourceObjectId.Bucket, sourceObjectId.Path, stream));
stream.Flush();
return(stream);
}
public async Task <FileSystemInfoContract> CopyItemAsync(RootName root, FileSystemId source, string copyName, DirectoryId destination, bool recurse)
{
if (source is DirectoryId)
{
throw new NotSupportedException(Properties.Resources.CopyingOfDirectoriesNotSupported);
}
var context = await RequireContextAsync(root);
var sourceObjectId = new StorageObjectId(source.Value);
var destinationObjectId = new StorageObjectId(destination.Value);
var item = await retryPolicy.ExecuteAsync(() => context.Client.CopyObjectAsync(sourceObjectId.Bucket, sourceObjectId.Path, destinationObjectId.Bucket, $"{destinationObjectId.Path}{copyName}"));
return(item.ToFileSystemInfoContract());
}
public async Task <FileInfoContract> NewFileItemAsync(RootName root, DirectoryId parent, string name, Stream content, IProgress <ProgressValue> progress)
{
if (content.Length == 0)
{
return(new ProxyFileInfoContract(name));
}
var context = await RequireContextAsync(root);
var parentObjectId = new StorageObjectId(parent.Value);
var uploadProgress = progress != null ? new UploadProgress(progress, (int)content.Length) : null;
var retryPolicyWithAction = Policy.Handle <GoogleApiException>().WaitAndRetryAsync(5, retryAttempt => TimeSpan.FromSeconds(Math.Pow(2, retryAttempt)),
(ex, ts) => content.Seek(0, SeekOrigin.Begin));
var item = await retryPolicyWithAction.ExecuteAsync(() => context.Client.UploadObjectAsync(parentObjectId.Bucket, $"{parentObjectId.Path}{name}", MIME_TYPE_FILE, content, progress: uploadProgress));
return(new FileInfoContract(item.Id, item.Name.Substring(parentObjectId.Path.Length), new DateTimeOffset(item.TimeCreated.Value), new DateTimeOffset(item.Updated.Value), (FileSize)(long)item.Size.Value, item.Md5Hash));
}
public async Task <FileInfoContract> NewFileItemAsync(RootName root, DirectoryId parent, string name, Stream content, IProgress <ProgressValue> progress)
{
if (content.Length == 0)
{
return(new ProxyFileInfoContract(name));
}
var context = await RequireContextAsync(root);
var parentObjectId = new StorageObjectId(parent.Value);
var uploadProgress = progress != null ? new UploadProgress(progress, (int)content.Length) : null;
var item = await context.Client.UploadObjectAsync(parentObjectId.Bucket, $"{parentObjectId.Path}{name}", MIME_TYPE_FILE, content, progress : uploadProgress);
return(new FileInfoContract(item.Id, item.Name.Substring(parentObjectId.Path.Length), new DateTimeOffset(item.TimeCreated.Value), new DateTimeOffset(item.Updated.Value), (long)item.Size.Value, item.Md5Hash));
}
public async Task <bool> RemoveItemAsync(RootName root, FileSystemId target, bool recurse)
{
var context = await RequireContextAsync(root);
var targetObjectId = new StorageObjectId(target.Value);
if (recurse)
{
foreach (var childItem in await GetChildItemAsync(root, (DirectoryId)target))
{
await retryPolicy.ExecuteAsync(() => RemoveItemAsync(root, childItem.Id, childItem is DirectoryInfoContract));
}
}
await retryPolicy.ExecuteAsync(() => context.Client.DeleteObjectAsync(targetObjectId.Bucket, targetObjectId.Path));
return(true);
}
