public async Task <Tuple <string, bool> > TryGetFromStoreAsync(string tag, TimeSpan timeout)
{
TimeoutHelper timeoutHelper = new TimeoutHelper(timeout);
ImageBuilder.TraceSource.WriteInfo(
TraceType,
"Downloading {0} from store.",
tag);
bool exists = false;
string value = null;
string tempFileName = ImageBuilderUtility.GetTempFileName(this.localImageBuilderRoot);
try
{
bool doesExsit = await this.ImageStore.DoesContentExistAsync(tag, timeoutHelper.GetRemainingTime());
if (doesExsit)
{
await this.ImageStore.DownloadContentAsync(tag, tempFileName, timeoutHelper.GetRemainingTime(), CopyFlag.AtomicCopy);
ImageBuilderUtility.RemoveReadOnlyFlag(tempFileName);
value = ImageBuilderUtility.ReadStringFromFile(tempFileName);
exists = true;
}
}
finally
{
ImageBuilderUtility.DeleteTempLocation(tempFileName);
}
return(new Tuple <string, bool>(value, exists));
}
public string TryGetFromStore(string tag, out bool exists, TimeSpan timeout)
{
TimeoutHelper timeoutHelper = new TimeoutHelper(timeout);
ImageBuilder.TraceSource.WriteInfo(
TraceType,
"Downloading {0} from store.",
tag);
exists = false;
string value = null;
string tempFileName = ImageBuilderUtility.GetTempFileName(this.localImageBuilderRoot);
try
{
if (this.ImageStore.DoesContentExist(tag, timeoutHelper.GetRemainingTime()))
{
this.ImageStore.DownloadContent(tag, tempFileName, timeoutHelper.GetRemainingTime(), CopyFlag.AtomicCopy);
ImageBuilderUtility.RemoveReadOnlyFlag(tempFileName);
value = ImageBuilderUtility.ReadStringFromFile(tempFileName);
exists = true;
}
}
finally
{
ImageBuilderUtility.DeleteTempLocation(tempFileName);
}
return(value);
}
public static string EnsureHashFile(string resourcePath, string hashFilePath, bool imageStoreServiceEnabled)
{
if (!FabricFile.Exists(hashFilePath))
{
string checksum = ChecksumUtility.ComputeHash(resourcePath, imageStoreServiceEnabled);
ImageBuilderUtility.WriteStringToFile(hashFilePath, checksum);
return(checksum);
}
else
{
return(ImageBuilderUtility.ReadStringFromFile(hashFilePath));
}
}