//// ===========================================================================================================
//// Methods
//// ===========================================================================================================
/// <summary>
/// Reads a value from the Windows registryKey.
/// </summary>
/// <typeparam name="T">The type of value that is read (<see cref="RegistryReadValueCommand{T}"/>).</typeparam>
/// <param name="command">The command to execute.</param>
/// <param name="logger">The logger to use.</param>
/// <returns>A response indicating success and the read value, or failure with error details.</returns>
public IServiceCommandResponse ExecuteRead <T>(RegistryReadValueCommand <T> command, ILogger logger)
{
Param.VerifyNotNull(command, nameof(command));
Param.VerifyNotNull(logger, nameof(logger));
ServiceCommandResponse response;
try
{
var registryHive = (RegistryHive)Enum.Parse(typeof(RegistryHive), command.BaseKey.ToString());
using (IWin32RegistryKey baseKey = _registry.OpenBaseKey(registryHive, RegistryView.Registry64))
using (IWin32RegistryKey subKey = baseKey.OpenSubKey(command.Key, writable: false))
{
object value = subKey?.GetValue(command.ValueName, command.DefaultValue) ?? command.DefaultValue;
response = ServiceCommandResponse.Create(command.CommandName, value);
}
}
catch (Exception e)
{
response = ServiceCommandResponse.CreateError(
command.CommandName,
ServiceErrorInfo.RegistryReadError(
RegistryPath.HiveToWin32Name(RegistryPath.BaseKeyToHive(command.BaseKey)),
command.Key,
command.ValueName,
e));
logger.LogError(response.ErrorMessage);
}
return(response);
}
public void GetValue_should_return_the_default_value_if_not_present()
{
var registry = new FakeRegistry();
using (IWin32RegistryKey hkcu = registry.OpenBaseKey(RegistryHive.CurrentUser, RegistryView.Registry64))
using (IWin32RegistryKey subKey = hkcu.CreateSubKey("SubKey"))
{
subKey.GetValue("NoValue", 100).Should().Be(100);
}
}
public void SetValue_should_create_the_value_if_not_present()
{
var registry = new FakeRegistry();
using (IWin32RegistryKey hkcu = registry.OpenBaseKey(RegistryHive.CurrentUser, RegistryView.Registry64))
using (IWin32RegistryKey subKey = hkcu.CreateSubKey("SubKey", writable: true))
{
subKey.SetValue("ValueName", 123, RegistryValueKind.DWord);
subKey.GetValue("ValueName").Should().Be(123);
}
}
