Пример #1
0
        public StreamAttributes Attributes(string logicalPath)
        {
            // Use the local file first, if found
            StreamAttributes attributes = LocalProvider.Attributes(logicalPath);

            // Return remote metadata instead if the local doesn't exist and the remote does
            if (!attributes.Exists)
            {
                StreamAttributes remoteAttributes = RemoteProvider.Attributes(logicalPath);
                if (remoteAttributes.Exists)
                {
                    attributes = remoteAttributes;
                }
            }

            return(attributes);
        }
Пример #2
0
        public Stream OpenRead(string logicalPath)
        {
            // If configured to only use remote configuration, don't use the local copy for Config and Query
            if (Configuration.UseRemoteConfiguration)
            {
                if (logicalPath.StartsWith("Config\\", StringComparison.OrdinalIgnoreCase) || logicalPath.StartsWith("Query\\", StringComparison.OrdinalIgnoreCase))
                {
                    return(RemoteProvider.OpenRead(logicalPath));
                }
            }

            // Read the local copy first, if found
            if (LocalProvider.Attributes(logicalPath).Exists)
            {
                return(LocalProvider.OpenRead(logicalPath));
            }

            // If there's a remote copy, use that
            if (LocalProvider.Attributes(logicalPath).Exists == false && RemoteProvider.Attributes(logicalPath).Exists == true)
            {
                if (Configuration.ShouldDownload)
                {
                    // Download the file if configured to
                    Trace.WriteLine($"DOWNLOAD: {logicalPath}");
                    using (Stream target = LocalProvider.OpenWrite(logicalPath))
                    {
                        using (Stream source = RemoteProvider.OpenRead(logicalPath))
                        {
                            source.CopyTo(target);
                        }
                    }

                    return(LocalProvider.OpenRead(logicalPath));
                }

                return(RemoteProvider.OpenRead(logicalPath));
            }

            // If neither location had the item, throw
            throw new IOException($"\"{logicalPath}\" did not exist in {LocalProvider.Description} or {RemoteProvider.Description}");
        }