/// <summary>
/// Will connect to an existing package.
/// </summary>
/// <param name="packageRootFilename">The package filename.</param>
/// <param name="configurationFilename">The filename to use when reading the <paramref name="configurationFilename"/> from the package.</param>
/// <returns>An <see cref="IConnectedPackage"/>, which represents the desired package.</returns>
/// <remarks>
/// See <see cref="ConnectedPackage"/> concerning proper handling of the <see cref="ConnectedPackage"/>.
/// </remarks>
public IConnectedPackage Connect(string packageRootFilename,
string configurationFilename)
{
// find package
if (!_AllPackagesFileStore.Contains(packageRootFilename))
{
throw new ArgumentException($"Package not found. Package Filename={packageRootFilename}");
}
// extract to temp location
var extractedPackageFilename = _AllPackagesFileStore.Get(packageRootFilename).Extract(System.IO.Path.GetTempPath(), true);
if (!System.IO.File.Exists(extractedPackageFilename))
{
throw new Exception($"PackageProvider; Unable to extract Package. Filename={packageRootFilename}");
}
// connect IFileStore
var packageStore = PackageFileStoreProvider.Connect(extractedPackageFilename);
// extract PackageConfiguration
IPackageConfiguration config = RetrieveConfiguration(packageStore, configurationFilename);
if (config != null)
{
// create IPackage
return(new ConnectedPackage(_AllPackagesFileStore, packageRootFilename, extractedPackageFilename, packageStore, config));
}
//
return(null);
}
/// <summary>
/// Will create a new package.
/// </summary>
/// <param name="packageRootFilename">The package filename.</param>
/// <param name="configurationFilename">The filename to use when writing the <paramref name="packageConfiguration"/> to the package.</param>
/// <param name="packageConfiguration">The configuration for this package.</param>
/// <param name="overwrite"><b>True</b> to write-over the package file if it already exists, otherwise, <b>false</b>.</param>
/// <returns>An <see cref="IConnectedPackage"/>, which represents the desired package.</returns>
/// <remarks>
/// See <see cref="ConnectedPackage"/> concerning proper handling of the <see cref="ConnectedPackage"/>.
/// </remarks>
public IConnectedPackage Create(string packageRootFilename,
string configurationFilename,
IPackageConfiguration packageConfiguration,
bool overwrite)
{
var tempConfigFilename = "";
try
{
// test for existing package
if (_AllPackagesFileStore.Contains(packageRootFilename) && !overwrite)
{
throw new Exception($"File already exists. Filename={packageRootFilename}");
}
// create package file store at temp location
var backendStorageZipFilename = System.IO.Path.Combine(System.IO.Path.GetTempPath(), "packStore_" + Guid.NewGuid().ToString());
var packageFileStore = PackageFileStoreProvider.Create(backendStorageZipFilename);
// save configuration to package file store
tempConfigFilename = System.IO.Path.Combine(System.IO.Path.GetTempPath(), "configuration_" + Guid.NewGuid().ToString());
System.IO.File.WriteAllText(tempConfigFilename, _ConfigurationSerializer.Serialize(packageConfiguration.Configuration).ToString());
packageFileStore.Add(configurationFilename, tempConfigFilename, DateTime.Now, new System.IO.FileInfo(tempConfigFilename).Length);
// must save now to store the configuration file before it is deleted
packageFileStore.Save(false);
// adds package file store to file store
_AllPackagesFileStore.Add(packageRootFilename, backendStorageZipFilename, DateTime.Now, new System.IO.FileInfo(tempConfigFilename).Length);
// create IPackage
return(new ConnectedPackage(_AllPackagesFileStore, packageRootFilename, backendStorageZipFilename, packageFileStore, packageConfiguration));
}
finally
{
// delete temp configuration file
FileStorage.FileStorageHelper.DeleteFile(tempConfigFilename);
}
}
