public InvalidContextStateException(
TransactionContextState currentState, TransactionContextState[] allowedStates, string message)
: base(message)
{
_currentState = currentState;
_allowedStates = allowedStates;
}
/// <summary>
/// Initializes a new instance of the <see cref="TransactionContextStateChangedEventArgs"/> class.
/// </summary>
/// <param name="oldState">The old transaction context state.</param>
/// <param name="newState">The new transaction context state.</param>
public TransactionContextStateChangedEventArgs(TransactionContextState oldState, TransactionContextState newState)
: base()
{
this.OldState = oldState;
this.NewState = newState;
}
public TCStateChangedEventArgs(TransactionContextState fromState)
{
this.FromState = fromState;
}
private void RaiseStateChangedEvent(TransactionContextState fromState)
{
try
{
if(this.StateChanged != null)
this.StateChanged(this, new TCStateChangedEventArgs(fromState));
}
catch(Exception e)
{
throw new TransactionContextException(ResourceStringLoader.GetResourceString(
"error_executing_transaction"), e);
}
}
internal void VoteRollbackFromChild()
{
_stateFromChildren = TransactionContextState.ToBeRollbacked;
}
internal void VoteCommitFromChild()
{
_stateFromChildren = TransactionContextState.ToBeCommitted;
}
public virtual void VoteRollback()
{
if(_state != TransactionContextState.Entered
&& _state != TransactionContextState.ToBeCommitted
&& _state != TransactionContextState.ToBeRollbacked)
throw new InvalidContextStateException(_state,
new TransactionContextState[] {
TransactionContextState.Entered,
TransactionContextState.ToBeCommitted,
TransactionContextState.ToBeRollbacked
},
ResourceStringLoader.GetResourceString("invalid_context_state"));
TransactionContextState fromState = _state;
_state = TransactionContextState.ToBeRollbacked;
TransactionContext contrCtx = this.GetControllingContext();
if(contrCtx != null && contrCtx != this) contrCtx.VoteRollbackFromChild();
RaiseStateChangedEvent(fromState);
}
public virtual void VoteCommit()
{
if(_state != TransactionContextState.Entered
&& _state != TransactionContextState.ToBeCommitted)
throw new InvalidContextStateException(_state, new TransactionContextState[] { TransactionContextState.Entered, TransactionContextState.ToBeCommitted }, "Context should be in one of the following states in VoteCommit - {Entered, ToBeCommitted}.");
TransactionContextState fromState = _state;
_state = TransactionContextState.ToBeCommitted;
TransactionContext contrCtx = this.GetControllingContext();
if(contrCtx != null && contrCtx != this) contrCtx.VoteCommitFromChild();
RaiseStateChangedEvent(fromState);
}
public virtual void Exit()
{
if(_state != TransactionContextState.Entered
&& _state != TransactionContextState.ToBeCommitted
&& _state != TransactionContextState.ToBeRollbacked)
throw new InvalidContextStateException(_state, new TransactionContextState[] { TransactionContextState.Entered, TransactionContextState.ToBeCommitted, TransactionContextState.ToBeRollbacked }, "Context should be in one of the following states in Exit - {Entered, ToBeCommitted, ToBeRollbacked}.");
TransactionContextState fromState = _state;
CallContext.SetData(THREAD_CURRENT_CONTEXT__KEY, parentContext);
_state = TransactionContextState.Exitted;
RaiseStateChangedEvent(fromState);
}
public virtual TransactionContext Enter()
{
if(_state != TransactionContextState.Created
&& _state != TransactionContextState.Exitted)
throw new InvalidContextStateException(_state, new TransactionContextState[] { TransactionContextState.Created, TransactionContextState.Exitted }, "Context should be in one of the following states in Enter - {Created, Exitted}.");
TransactionContextState fromState = _state;
parentContext = CallContext.GetData(THREAD_CURRENT_CONTEXT__KEY) as TransactionContext;
CallContext.SetData(THREAD_CURRENT_CONTEXT__KEY, this);
_state = TransactionContextState.Entered;
RaiseStateChangedEvent(fromState);
return this;
}
/// <summary>
/// Initializes a new instance of the <see cref="TransactionContextStateChangedEventArgs"/> class.
/// </summary>
/// <param name="oldState">The old transaction context state.</param>
/// <param name="newState">The new transaction context state.</param>
public TransactionContextStateChangedEventArgs(TransactionContextState oldState, TransactionContextState newState)
: base()
{
this.OldState = oldState;
this.NewState = newState;
}
/// <summary>
/// Raises the <see cref="StateChanged"/> event.
/// </summary>
/// <param name="previousState">The previous transaction context state.</param>
/// <param name="newState">The new transaction context state.</param>
private void OnStateChanged(TransactionContextState previousState, TransactionContextState newState)
{
this.StateChanged?.Invoke(this, new TransactionContextStateChangedEventArgs(previousState, newState));
}
/// <summary>
/// Raises the <see cref="StateChanged"/> event.
/// </summary>
/// <param name="previousState">The previous transaction context state.</param>
/// <param name="newState">The new transaction context state.</param>
private void OnStateChanged(TransactionContextState previousState, TransactionContextState newState)
{
this.StateChanged?.Invoke(this, new TransactionContextStateChangedEventArgs(previousState, newState));
}
