IYodiiEngineResult DoDynamicResolution(ConfigurationSolver solver, Func <YodiiCommand, bool> existingCommandFilter, YodiiCommand cmd, Action onPreSuccess = null)
{
var dynResult = solver.DynamicResolution(existingCommandFilter != null ? _yodiiCommands.Where(existingCommandFilter) : _yodiiCommands, cmd);
var errors = _host.Apply(dynResult.Disabled, dynResult.Stopped, dynResult.Running);
if (errors != null && errors.Any())
{
IYodiiEngineResult result = solver.CreateDynamicFailureResult(errors);
_liveInfo.UpdateRuntimeErrors(errors, solver.FindExistingPlugin);
return(result);
}
// Success:
if (onPreSuccess != null)
{
onPreSuccess();
}
bool wasStopped = _currentSolver == null;
if (_currentSolver != solver)
{
_currentSolver = solver;
}
_liveInfo.UpdateFrom(_currentSolver);
_yodiiCommands.Merge(dynResult.Commands);
if (wasStopped)
{
RaisePropertyChanged("IsRunning");
}
return(_successResult);
}
public IYodiiEngineResult SetDiscoveredInfo(IDiscoveredInfo info)
{
if (info == null)
{
throw new ArgumentNullException("info");
}
if (info == _discoveredInfo)
{
return(_successResult);
}
if (IsRunning)
{
var r = ConfigurationSolver.CreateAndApplyStaticResolution(this, _manager.FinalConfiguration, info, false, false, false);
if (r.Item1 != null)
{
Debug.Assert(!r.Item1.Success, "Not null means necessarily an error.");
Debug.Assert(r.Item1.Engine == this);
return(r.Item1);
}
return(DoDynamicResolution(r.Item2, null, null, () => DiscoveredInfo = info));
}
else
{
DiscoveredInfo = info;
}
return(_successResult);
}
/// <summary>
/// Triggers the static resolution of the graph (with the current <see cref="DiscoveredInfo"/> and <see cref="Configuration"/>).
/// This has no impact on the engine and can be called when <see cref="IsRunning"/> is false.
/// </summary>
/// <param name="revertServices">True to revert the list of the services (based on their <see cref="IServiceInfo.ServiceFullName"/>).</param>
/// <param name="revertPlugins">True to revert the list of the plugins (based on their <see cref="IPluginInfo.PluginFullName"/>).</param>
/// <returns>
/// The result with a potential non null <see cref="IYodiiEngineResult.StaticFailureResult"/> but always an
/// available <see cref="IYodiiEngineStaticOnlyResult.StaticSolvedConfiguration"/>.
/// </returns>
public IYodiiEngineStaticOnlyResult StaticResolutionOnly(bool revertServices, bool revertPlugins)
{
var r = ConfigurationSolver.CreateAndApplyStaticResolution(this, _manager.FinalConfiguration, _discoveredInfo, revertServices, revertPlugins, createStaticSolvedConfigOnSuccess: true);
Debug.Assert(r.Item1 != null, "Either an error or a successful static resolution.");
return(r.Item1);
}
public void Stop()
{
if (IsRunning)
{
_liveInfo.Clear();
_currentSolver = null;
RaisePropertyChanged("IsRunning");
}
}
internal static Tuple <IYodiiEngineStaticOnlyResult, ConfigurationSolver> CreateAndApplyStaticResolution(YodiiEngine engine, FinalConfiguration finalConfiguration, IDiscoveredInfo discoveredInfo, bool revertServices, bool revertPlugins, bool createStaticSolvedConfigOnSuccess)
{
ConfigurationSolver temporarySolver = new ConfigurationSolver(engine, revertServices, revertPlugins);
IYodiiEngineStaticOnlyResult result = temporarySolver.StaticResolution(finalConfiguration, discoveredInfo, createStaticSolvedConfigOnSuccess);
// StaticResolution returns null on success.
// If there is a result, it is either an error or createStaticSolvedConfigOnSuccess is true and this is a StaticResolutionOnly: in both
// case we do not need to keep the temporary solver.
if (result != null)
{
temporarySolver = null;
}
return(Tuple.Create(result, temporarySolver));
}
public IYodiiEngineResult Start(bool revertServices, bool revertPlugins, IEnumerable <YodiiCommand> persistedCommands = null)
{
if (!IsRunning)
{
_yodiiCommands.Clear();
if (persistedCommands != null)
{
_yodiiCommands.AddRange(persistedCommands);
}
var r = ConfigurationSolver.CreateAndApplyStaticResolution(this, _manager.FinalConfiguration, _discoveredInfo, revertServices, revertPlugins, false);
if (r.Item1 != null)
{
Debug.Assert(!r.Item1.Success, "Not null means necessarily an error.");
Debug.Assert(r.Item1.Engine == this);
return(r.Item1);
}
return(DoDynamicResolution(r.Item2, null, null));
}
return(_successResult);
}
internal static Tuple<IYodiiEngineStaticOnlyResult, ConfigurationSolver> CreateAndApplyStaticResolution( YodiiEngine engine, FinalConfiguration finalConfiguration, IDiscoveredInfo discoveredInfo, bool revertServices, bool revertPlugins, bool createStaticSolvedConfigOnSuccess )
{
ConfigurationSolver temporarySolver = new ConfigurationSolver( engine,revertServices, revertPlugins );
IYodiiEngineStaticOnlyResult result = temporarySolver.StaticResolution( finalConfiguration, discoveredInfo, createStaticSolvedConfigOnSuccess );
// StaticResolution returns null on success.
// If there is a result, it is either an error or createStaticSolvedConfigOnSuccess is true and this is a StaticResolutionOnly: in both
// case we do not need to keep the temporary solver.
if( result != null ) temporarySolver = null;
return Tuple.Create( result, temporarySolver );
}
internal Tuple <IYodiiEngineStaticOnlyResult, ConfigurationSolver> StaticResolutionByConfigurationManager(FinalConfiguration finalConfiguration)
{
Debug.Assert(IsRunning);
return(ConfigurationSolver.CreateAndApplyStaticResolution(this, finalConfiguration, _discoveredInfo, false, false, false));
}
internal IYodiiEngineResult OnConfigurationChanging(ConfigurationSolver temporarySolver)
{
Debug.Assert(IsRunning, "Cannot call this function when the engine is not running");
return(DoDynamicResolution(temporarySolver, null, null));
}