protected AbstractServiceJob(IDictionary stateMap) : this()
{
if (log.IsInfoEnabled)
{
log.Info(@"ServiceJob을 위한 StateMap 정보를 제공받았습니다!!!");
}
if (stateMap != null)
{
foreach (DictionaryEntry de in stateMap)
{
StateMap.Add(de.Key, de.Value);
}
JobDataMap.SetJobData(stateMap);
}
}
/// <summary>
/// Create a state machine of the given base type and will set it on the given context
/// Will internally called by the <see cref="StateMachine"/> wrapper class
/// </summary>
internal static void Create <TStateBase>(IStateContext context, int?initialKey)
where TStateBase : StateBase
{
var stateBaseType = typeof(TStateBase);
// Check the base type
if (!stateBaseType.IsAbstract)
{
throw new ArgumentException("The state base class must be abstract!");
}
// Load all fields
// 1. Get all fields which are static constant with the attribute
// 2. let attribute and create an anonymous array
var definedStates = (from stateField in GetStateFields(stateBaseType)
let att = stateField.GetCustomAttribute <StateDefinitionAttribute>()
select new { Key = (int)stateField.GetValue(null), att.IsInitial, att.Type }).ToArray();
if (definedStates.Length == 0)
{
throw new InvalidOperationException("There was no state constant defined in the given base type." +
$"There musst be at least one constant integer attributed with the {nameof(StateDefinitionAttribute)}.");
}
// If a initial key is set, we check if it exists
if (initialKey.HasValue && definedStates.All(s => s.Key != initialKey.Value))
{
throw new InvalidOperationException($"There was no state defined with key: {initialKey}");
}
// Group by type to find multiple defined state types
var duplicates = definedStates.GroupBy(state => state.Type).Where(g => g.Count() > 1).Select(g => g.Key).ToArray();
if (duplicates.Any())
{
var typeNames = string.Join(", ", duplicates.Select(type => type.Name));
throw new InvalidOperationException($"State types are only allowed once: {typeNames}");
}
var stateMap = new StateMap();
StateBase initialState = null;
foreach (var definedState in definedStates)
{
var instance = (StateBase)Activator.CreateInstance(definedState.Type, context, stateMap);
instance.Key = definedState.Key;
if (initialKey.HasValue && initialKey.Value == definedState.Key)
{
initialState = instance;
}
else if (definedState.IsInitial && initialState == null)
{
initialState = instance;
}
else if (definedState.IsInitial && initialState != null)
{
throw new InvalidOperationException("At least one state must be flagged as '" +
$"{nameof(StateDefinitionAttribute.IsInitial)} = true'.");
}
stateMap.Add(definedState.Key, instance);
}
if (initialState == null)
{
throw new InvalidOperationException("There is no state flagged with " +
$"'{nameof(StateDefinitionAttribute.IsInitial)} = true'.");
}
context.SetState(initialState);
initialState.OnEnter();
}