/// <summary>
/// Launch an Task.
/// </summary>
/// <param name="startTaskProto"></param>
private void StartTask(StartTaskProto startTaskProto)
{
lock (_contextStack)
{
ContextRuntime currentActiveContext = _contextStack.Peek();
string expectedContextId = startTaskProto.context_id;
if (!expectedContextId.Equals(currentActiveContext.Id, StringComparison.OrdinalIgnoreCase))
{
var e = new InvalidOperationException(string.Format(CultureInfo.InvariantCulture, "Task expected context '{0}' but the active context has Id '{1}'", expectedContextId, currentActiveContext.Id));
Org.Apache.REEF.Utilities.Diagnostics.Exceptions.Throw(e, LOGGER);
}
TaskConfiguration taskConfiguration = new TaskConfiguration(startTaskProto.configuration);
currentActiveContext.StartTask(taskConfiguration, expectedContextId, _heartBeatManager);
}
}
/// <summary>
/// Launch an Task.
/// </summary>
/// <param name="startTaskProto"></param>
private void StartTask(StartTaskProto startTaskProto)
{
lock (_contextLock)
{
ContextRuntime currentActiveContext = _topContext;
string expectedContextId = startTaskProto.context_id;
if (!expectedContextId.Equals(currentActiveContext.Id, StringComparison.OrdinalIgnoreCase))
{
var e = new InvalidOperationException(
string.Format(CultureInfo.InvariantCulture, "Task expected context '{0}' but the active context has Id '{1}'", expectedContextId, currentActiveContext.Id));
Utilities.Diagnostics.Exceptions.Throw(e, LOGGER);
}
var configuration = _serializer.FromString(startTaskProto.configuration);
currentActiveContext.StartTask(configuration);
}
}
/// <summary>
/// Start the context manager. This initiates the root context.
/// </summary>
public void Start()
{
lock (_contextLock)
{
_topContext = _rootContextLauncher.GetRootContext();
LOGGER.Log(Level.Info, string.Format(CultureInfo.InvariantCulture, "Instantiating root context with Id {0}", _topContext.Id));
if (_rootContextLauncher.RootTaskConfig.IsPresent())
{
LOGGER.Log(Level.Info, "Launching the initial Task");
try
{
_topContext.StartTask(_rootContextLauncher.RootTaskConfig.Value, _rootContextLauncher.RootContextConfig.Id, _heartBeatManager);
}
catch (TaskClientCodeException e)
{
Utilities.Diagnostics.Exceptions.Caught(e, Level.Error, "Exception when trying to start a task.", LOGGER);
HandleTaskException(e);
}
}
}
}
/// <summary>
/// Start the context manager. This initiates the root context.
/// </summary>
public void Start()
{
lock (_contextLock)
{
_topContext = _rootContextLauncher.GetRootContext();
LOGGER.Log(Level.Info, string.Format(CultureInfo.InvariantCulture, "Instantiating root context with Id {0}", _topContext.Id));
if (_rootContextLauncher.RootTaskConfig.IsPresent())
{
LOGGER.Log(Level.Info, "Launching the initial Task");
try
{
_topContext.StartTask(_rootContextLauncher.RootTaskConfig.Value);
}
catch (TaskClientCodeException e)
{
Utilities.Diagnostics.Exceptions.Caught(e, Level.Error, "Exception when trying to start a task.", LOGGER);
HandleTaskException(e);
}
}
}
}