void PowerSwitch(object sender, RoutedEventArgs e)
{
try
{
using (new OperationContextScope((IContextChannel)Client.InnerChannel))
{
if (PowerOn)
{
PowerOn = false;
if (!contextApplied)
{
ContextManager.ApplyContextToChannel(Context, Client.InnerChannel);
contextApplied = true;
}
Context = null;
ContextManager.DeleteContext(contextFile);
Client.PowerOff();
Client.Close();
client = null;
}
else
{
Client.PowerOn();
// At this point the channel has the context from the operation called
contextApplied = true;
// extract and persist context
Context = ContextManager.ExtractContextFromChannel(client.InnerChannel);
ContextManager.PersistContext(Context, contextFile);
PowerOn = true;
}
}
}
catch (CommunicationException ce)
{
MessageBox.Show(ce.Message);
Client.Abort();
client = null;
}
}
public IDictionary <string, string> MaintainContext(IClientChannel channel)
{
IDictionary <string, string> context = null;
if (!RecoveredContext)
{
context = ContextManager.ExtractContextFromChannel((IClientChannel)channel);
ContextManager.PersistContext(context, contextFileName);
// register handlers to cleanup context file when Workflow completes or terminates.
wfRuntime.WorkflowCompleted += delegate(object sender, WorkflowCompletedEventArgs e) { ContextManager.DeleteContext(contextFileName); };
wfRuntime.WorkflowTerminated += delegate(object sender, WorkflowTerminatedEventArgs e) { ContextManager.DeleteContext(contextFileName); };
}
return(context);
}
public TChannel CreateLocalChannel <TChannel>()
{
ChannelFactory <TChannel> channelFactory = new ChannelFactory <TChannel>(localBinding, localWorkflowAddress);
TChannel channel = channelFactory.CreateChannel();
IDictionary <string, string> context = ContextManager.DepersistContext(contextFileName);
if (context != null && context.Count > 0)
{
ContextManager.ApplyContextToChannel(context, (IClientChannel)channel);
recoveredContext = true;
// register handlers to cleanup context file when Workflow completes or terminates.
this.Description.Behaviors.Find <WorkflowRuntimeBehavior>().WorkflowRuntime.WorkflowCompleted += delegate(object sender, WorkflowCompletedEventArgs e) { ContextManager.DeleteContext(contextFileName); };
this.Description.Behaviors.Find <WorkflowRuntimeBehavior>().WorkflowRuntime.WorkflowTerminated += delegate(object sender, WorkflowTerminatedEventArgs e) { ContextManager.DeleteContext(contextFileName); };
}
return(channel);
}
