public bool CanMoveAxis(TelescopeAxes axis)
{
bool retval = false;
Exception xcp = null;
ActivityMessageTypes messageType = ActivityMessageTypes.Capabilities;
string axisName = GetNameFromAxis(axis);
string msg = String.Format("Calling CanMoveAxis( {0} )", axisName);
try
{
CheckDevice();
retval = Service.CanMoveAxis(axis);
msg += retval.ToString();
}
catch (Exception ex)
{
xcp = ex;
msg += Failed;
throw;
}
finally
{
LogActivityLine(messageType, msg);
if (xcp != null)
{
LogActivityLine(messageType, "CanMoveAxis( {0} ) Exception: {1}", axisName, xcp.Message);
}
}
return(retval);
}
protected void SetServiceProperty <T>(Action setCmd, string name, T value, ActivityMessageTypes messageType = ActivityMessageTypes.Status)
{
Exception xcp = null;
string msg = String.Format("Set {0} -> {1} ", name, value);
CheckDevice();
try
{
setCmd();
msg += Done;
}
catch (Exception ex)
{
xcp = ex;
msg += Failed;
}
finally
{
LogActivityLine(messageType, msg);
if (xcp != null)
{
LogActivityLine(messageType, "Set {0} Exception: {1}", name, xcp.Message);
}
}
}
private string GetMessageTypeName(ActivityMessageTypes msgType)
{
string typeText = " ";
switch (msgType)
{
case ActivityMessageTypes.Capabilities:
typeText = "Capabilities: ";
break;
case ActivityMessageTypes.Commands:
typeText = "Commands: ";
break;
case ActivityMessageTypes.Other:
typeText = "Others: ";
break;
case ActivityMessageTypes.Parameters:
typeText = "Parameters: ";
break;
case ActivityMessageTypes.Status:
typeText = "Statuses: ";
break;
}
return(typeText);
}
protected void SetServiceProperty <T>(Action setCmd, T value
, ActivityMessageTypes messageType = ActivityMessageTypes.Status
, [System.Runtime.CompilerServices.CallerMemberName] string propName = "???")
{
Exception xcp = null;
string msg = String.Format("Set {0} -> {1} ", propName, value);
CheckDevice();
try
{
setCmd();
msg += Done;
}
catch (Exception ex)
{
xcp = ex;
msg += Failed;
throw;
}
finally
{
LogActivityLine(messageType, msg);
if (xcp != null)
{
LogActivityLine(messageType, "Set {0} Exception: {1}", propName, xcp.Message);
}
}
}
protected void LogActivityStart(ActivityMessageTypes msgType, string msg)
{
string deviceTypeText = DeviceType.ToString();
string messageTypeText = GetMessageTypeName(msgType);
string timestamp = DateTime.Now.ToString("HH:mm:ss.fff");
string text = String.Format("{0}: {1} - {2}{3}", timestamp, deviceTypeText, messageTypeText, msg);
LogMessage(msgType, text);
}
public IAxisRates AxisRates(TelescopeAxes axis)
{
IAxisRates retval;
Exception xcp = null;
ActivityMessageTypes messageType = ActivityMessageTypes.Capabilities;
string axisName = GetNameFromAxis(axis);
string msg = String.Format("Calling AxisRates( {0} )", axisName);
try
{
CheckDevice();
if (Service.CanMoveAxis(axis))
{
retval = Service.AxisRates(axis);
}
else
{
IRate[] rateArr = new IRate[0];
retval = new ScopeAxisRates(rateArr);
}
msg += Done;
}
catch (Exception ex)
{
xcp = ex;
msg += Failed;
// Return an empty IAxisRates collection
IRate[] rateArr = new IRate[0];
retval = new ScopeAxisRates(rateArr);
}
finally
{
LogActivityLine(messageType, msg);
if (xcp != null)
{
LogActivityLine(messageType, "AxisRates( {0} ) Exception: {1}", axisName, xcp.Message);
}
}
return(retval);
}
protected T GetServiceProperty <T>(Func <T> getCmd, T defaultValue
, ActivityMessageTypes messageType = ActivityMessageTypes.Status
, [System.Runtime.CompilerServices.CallerMemberName] string propName = "???")
{
T retval = defaultValue;
Exception xcp = null;
CheckDevice();
try
{
retval = getCmd();
}
catch (Exception ex)
{
xcp = ex;
string name = ex.GetType().Name;
}
if (xcp == null)
{
if (retval is ArrayList)
{
LogActivityStart(messageType, "Get {0}: {1}", propName, retval);
StringBuilder sb = new StringBuilder();
ArrayList list = retval as ArrayList;
foreach (var item in list)
{
sb.Append((sb.Length > 0) ? ", " : "");
sb.Append(item.ToString());
}
LogActivityEnd(messageType, sb.ToString());
}
else if (retval is TrackingRates)
{
LogActivityStart(ActivityMessageTypes.Parameters, "Get {0}:", propName);
StringBuilder sb = new StringBuilder();
TrackingRates rates = retval as TrackingRates;
if (rates == null)
{
sb.Append(" Did not return expected ITrackingRates collection!");
}
else if (rates.Count == 0)
{
sb.Append("Received invalid Tracking Rates collection.");
}
else
{
for (int i = 1; i <= rates.Count; ++i)
{
if (sb.Length > 0)
{
sb.Append(", ");
}
sb.Append(rates[i].ToString());
}
}
LogActivityEnd(ActivityMessageTypes.Parameters, sb.ToString());
}
else
{
LogActivityLine(messageType, "Get {0}: {1}", propName, retval);
}
}
else
{
LogActivityLine(messageType, "Get {0} Exception: {1}", propName, xcp.Message);
}
Exceptions.SetException(propName, xcp);
return(retval);
}
private void LogMessage(ActivityMessageTypes msgType, string msgText)
{
Messenger.Default.Send(new ActivityMessage(DeviceType, msgType, msgText));
}
protected void LogActivityLine(ActivityMessageTypes msgType, string msgFormat, params object[] parms)
{
string msg = String.Format(msgFormat, parms);
LogActivityLine(msgType, msg);
}
protected void LogActivityEnd(ActivityMessageTypes msgType, string msg)
{
msg = " " + msg + "\r\n";
LogMessage(msgType, msg);
}
protected void LogActivityEnd(ActivityMessageTypes msgType, object objVal)
{
string msg = objVal.ToString();
LogActivityEnd(msgType, msg);
}
public ActivityMessage(DeviceTypeEnum deviceType, ActivityMessageTypes messageType, string messageText)
{
DeviceType = deviceType;
MessageType = messageType;
MessageText = messageText;
}