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 async Task <T> GetFromStoreAsync <T>(string tag, TimeSpan timeout)
{
TimeoutHelper timeoutHelper = new TimeoutHelper(timeout);
ImageBuilder.TraceSource.WriteInfo(
TraceType,
"Downloading {0} from store async.",
tag);
string tempFileName = ImageBuilderUtility.GetTempFileName(this.localImageBuilderRoot);
try
{
bool doesExist = await this.ImageStore.DoesContentExistAsync(tag, timeoutHelper.GetRemainingTime());
if (doesExist)
{
await this.ImageStore.DownloadContentAsync(tag, tempFileName, timeoutHelper.GetRemainingTime(), CopyFlag.AtomicCopy);
ImageBuilderUtility.RemoveReadOnlyFlag(tempFileName);
return(ImageBuilderUtility.ReadXml <T>(tempFileName));
}
else
{
throw new FileNotFoundException(
string.Format(CultureInfo.CurrentCulture, StringResources.ImageStoreError_FileNotFound, tag));
}
}
finally
{
ImageBuilderUtility.DeleteTempLocation(tempFileName);
}
}
public async Task <Tuple <T, bool> > TryGetFromStoreAsync <T>(string tag, TimeSpan timeout)
{
TimeoutHelper timeoutHelper = new TimeoutHelper(timeout);
ImageBuilder.TraceSource.WriteInfo(
TraceType,
"Downloading {0} from store.",
tag);
bool exists = false;
T value = default(T);
string tempFileName = ImageBuilderUtility.GetTempFileName(this.localImageBuilderRoot);
try
{
if (await this.ImageStore.DoesContentExistAsync(tag, timeoutHelper.GetRemainingTime()))
{
await this.ImageStore.DownloadContentAsync(tag, tempFileName, timeoutHelper.GetRemainingTime(), CopyFlag.AtomicCopy);
ImageBuilderUtility.RemoveReadOnlyFlag(tempFileName);
value = ImageBuilderUtility.ReadXml <T>(tempFileName);
exists = true;
}
}
finally
{
ImageBuilderUtility.DeleteTempLocation(tempFileName);
}
return(new Tuple <T, bool>(value, exists));
}
public bool DownloadIfContentExists(string source, string destination, IImageStoreProgressHandler progressHandler, TimeSpan timeout)
{
TimeoutHelper timeoutHelper = new TimeoutHelper(timeout);
if (this.ImageStore.DoesContentExist(source, timeoutHelper.GetRemainingTime()))
{
this.ImageStore.DownloadContent(source, destination, progressHandler, timeoutHelper.GetRemainingTime(), CopyFlag.AtomicCopy);
ImageBuilderUtility.RemoveReadOnlyFlag(destination);
return(true);
}
else
{
return(false);
}
}
public string GetFileNameFromStore(string tag, TimeSpan timeout)
{
TimeoutHelper timeoutHelper = new TimeoutHelper(timeout);
ImageBuilder.TraceSource.WriteInfo(
TraceType,
"Downloading {0} from store.",
tag);
string tempFileName = ImageBuilderUtility.GetTempFileName(this.localImageBuilderRoot);
if (this.ImageStore.DoesContentExist(tag, timeoutHelper.GetRemainingTime()))
{
this.ImageStore.DownloadContent(tag, tempFileName, timeoutHelper.GetRemainingTime(), CopyFlag.AtomicCopy);
ImageBuilderUtility.RemoveReadOnlyFlag(tempFileName);
return(tempFileName);
}
else
{
throw new FileNotFoundException(
string.Format(CultureInfo.CurrentCulture, StringResources.ImageStoreError_FileNotFound, tag));
}
}
