private IEnumerable <PackageFragmentValidationResult> LoadPackageFramentUninstallers(XElement packageFragmentInstallersElement)
{
PackageUninstallerContext packageUninstallerContext = null;
Exception exception = null;
try
{
string packageDirectory = Path.GetDirectoryName(ZipFilename);
packageUninstallerContext = new PackageUninstallerContext(new ZipFileSystem(this.ZipFilename), packageDirectory, this.PackageInformation);
}
catch (Exception ex)
{
exception = ex;
}
if (exception != null)
{
yield return(new PackageFragmentValidationResult(PackageFragmentValidationResultType.Fatal, exception));
yield break;
}
foreach (XElement element in packageFragmentInstallersElement.Elements(XmlUtils.GetXName(PackageSystemSettings.XmlNamespace, PackageSystemSettings.PackageFragmentUninstallersAddElementName)))
{
XAttribute uninstallerTypeAttribute = element.Attribute(PackageSystemSettings.UninstallerTypeAttributeName);
if (uninstallerTypeAttribute == null)
{
yield return(new PackageFragmentValidationResult(PackageFragmentValidationResultType.Fatal, string.Format("Missing attribute '{0}'", PackageSystemSettings.UninstallerTypeAttributeName), element)); continue;
}
Type uninstallerType = TypeManager.TryGetType(uninstallerTypeAttribute.Value);
if (uninstallerType == null)
{
yield return(new PackageFragmentValidationResult(PackageFragmentValidationResultType.Fatal, string.Format("Could not find uninstall fragment type '{0}'", uninstallerTypeAttribute.Value), uninstallerTypeAttribute)); continue;
}
exception = null;
IPackageFragmentUninstaller packageFragmentUninstaller = null;
try
{
packageFragmentUninstaller = Activator.CreateInstance(uninstallerType) as IPackageFragmentUninstaller;
}
catch (Exception ex)
{
exception = ex;
}
if (exception != null)
{
yield return(new PackageFragmentValidationResult(PackageFragmentValidationResultType.Fatal, exception));
continue;
}
if (packageFragmentUninstaller == null)
{
yield return(new PackageFragmentValidationResult(PackageFragmentValidationResultType.Fatal, string.Format("The type '{0}' does not implement {1}", uninstallerTypeAttribute.Value, typeof(IPackageFragmentUninstaller)), uninstallerTypeAttribute)); continue;
}
try
{
packageFragmentUninstaller.Initialize(packageUninstallerContext, element.Descendants(), element);
}
catch (Exception ex)
{
exception = ex;
}
if (exception != null)
{
yield return(new PackageFragmentValidationResult(PackageFragmentValidationResultType.Fatal, exception));
continue;
}
_packageFramentUninstallers.Add(packageFragmentUninstaller);
}
}
private IEnumerable<PackageFragmentValidationResult> LoadPackageFramentUninstallers(XElement packageFragmentInstallersElement)
{
PackageUninstallerContext packageUninstallerContext = null;
Exception exception = null;
try
{
string packageDirectory = Path.GetDirectoryName(ZipFilename);
packageUninstallerContext = new PackageUninstallerContext(new ZipFileSystem(this.ZipFilename), packageDirectory, this.PackageInformation);
}
catch (Exception ex)
{
exception = ex;
}
if (exception != null)
{
yield return new PackageFragmentValidationResult(PackageFragmentValidationResultType.Fatal, exception);
yield break;
}
foreach (XElement element in packageFragmentInstallersElement.Elements(XmlUtils.GetXName(PackageSystemSettings.XmlNamespace, PackageSystemSettings.PackageFragmentUninstallersAddElementName)))
{
XAttribute uninstallerTypeAttribute = element.Attribute(PackageSystemSettings.UninstallerTypeAttributeName);
if (uninstallerTypeAttribute == null) { yield return new PackageFragmentValidationResult(PackageFragmentValidationResultType.Fatal, string.Format("Missing attribute '{0}'", PackageSystemSettings.UninstallerTypeAttributeName), element); continue; }
Type uninstallerType = TypeManager.TryGetType(uninstallerTypeAttribute.Value);
if (uninstallerType == null) { yield return new PackageFragmentValidationResult(PackageFragmentValidationResultType.Fatal, string.Format("Could not find uninstall fragment type '{0}'", uninstallerTypeAttribute.Value), uninstallerTypeAttribute); continue; }
exception = null;
IPackageFragmentUninstaller packageFragmentUninstaller = null;
try
{
packageFragmentUninstaller = Activator.CreateInstance(uninstallerType) as IPackageFragmentUninstaller;
}
catch (Exception ex)
{
exception = ex;
}
if (exception != null)
{
yield return new PackageFragmentValidationResult(PackageFragmentValidationResultType.Fatal, exception);
continue;
}
if (packageFragmentUninstaller == null) { yield return new PackageFragmentValidationResult(PackageFragmentValidationResultType.Fatal, string.Format("The type '{0}' does not implement {1}", uninstallerTypeAttribute.Value, typeof(IPackageFragmentUninstaller)), uninstallerTypeAttribute); continue; }
try
{
packageFragmentUninstaller.Initialize(packageUninstallerContext, element.Descendants(), element);
}
catch (Exception ex)
{
exception = ex;
}
if (exception != null)
{
yield return new PackageFragmentValidationResult(PackageFragmentValidationResultType.Fatal, exception);
continue;
}
_packageFramentUninstallers.Add(packageFragmentUninstaller);
}
}
