private object HandleInvocationException(object o, IInternalContextAdapter context, System.Exception t)
{
/*
* In the event that the invocation of the method
* itself throws an exception, we want to catch that
* wrap it, and throw. We don't Log here as we want to figure
* out which reference threw the exception, so do that
* above
*/
/*
* let non-Exception Throwables go...
*/
if (t is System.Exception)
{
try
{
return(EventHandlerUtil.MethodException(rsvc, context, o.GetType(), methodName, (System.Exception)t));
}
/**
* If the event handler throws an exception, then wrap it
* in a MethodInvocationException. Don't pass through RuntimeExceptions like other
* similar catchall code blocks.
*/
catch (System.Exception e)
{
throw new MethodInvocationException("Invocation of method '" + methodName + "' in " + o.GetType() + " threw exception " + e.ToString(), e, methodName, TemplateName, this.Line, this.Column);
}
}
else
{
/*
* no event cartridge to override. Just throw
*/
throw new MethodInvocationException("Invocation of method '" + methodName + "' in " + o.GetType() + " threw exception " + t.ToString(), t, methodName, TemplateName, this.Line, this.Column);
}
}
/// <seealso cref="NVelocity.Runtime.Paser.Node.SimpleNode.Execute(java.lang.Object, org.apache.velocity.context.InternalContextAdapter)">
/// </seealso>
public override object Execute(object o, IInternalContextAdapter context)
{
IVelPropertyGet vg = null;
try
{
/*
* first, see if we have this information cached.
*/
IntrospectionCacheData icd = context.ICacheGet(this);
/*
* if we have the cache data and the class of the object we are
* invoked with is the same as that in the cache, then we must
* be allright. The last 'variable' is the method name, and
* that is fixed in the template :)
*/
if (icd != null && (o != null) && (icd.ContextData == o.GetType()))
{
vg = (IVelPropertyGet)icd.Thingy;
}
else
{
/*
* otherwise, do the introspection, and cache it. Use the
* uberspector
*/
vg = rsvc.Uberspect.GetPropertyGet(o, identifier, uberInfo);
if (vg != null && vg.Cacheable && (o != null))
{
icd = new IntrospectionCacheData();
icd.ContextData = o.GetType();
icd.Thingy = vg;
context.ICachePut(this, icd);
}
}
}
/**
* pass through application level runtime exceptions
*/
catch (System.SystemException e)
{
throw e;
}
catch (System.Exception e)
{
string msg = "ASTIdentifier.Execute() : identifier = " + identifier;
log.Error(msg, e);
throw new VelocityException(msg, e);
}
/*
* we have no getter... punt...
*/
if (vg == null)
{
if (strictRef)
{
throw new MethodInvocationException("Object '" + o.GetType().FullName + "' does not contain property '" + identifier + "'", null, identifier, uberInfo.TemplateName, uberInfo.Line, uberInfo.Column);
}
else
{
return(null);
}
}
/*
* now try and Execute. If we Get a MIE, throw that
* as the app wants to Get these. If not, Log and punt.
*/
try
{
return(vg.Invoke(o));
}
catch (System.Reflection.TargetInvocationException ite)
{
/*
* if we have an event cartridge, see if it wants to veto
* also, let non-Exception Throwables go...
*/
System.Exception t = ite.GetBaseException();
if (t is System.Exception)
{
try
{
return(EventHandlerUtil.MethodException(rsvc, context, o.GetType(), vg.MethodName, (System.Exception)t));
}
/**
* If the event handler throws an exception, then wrap it
* in a MethodInvocationException. Don't pass through RuntimeExceptions like other
* similar catchall code blocks.
*/
catch (System.Exception)
{
throw new MethodInvocationException("Invocation of method '" + vg.MethodName + "'" + " in " + o.GetType() + " threw exception " + ite.GetBaseException().ToString(), ite.GetBaseException(), vg.MethodName, TemplateName, this.Line, this.Column);
}
}
else
{
/*
* no event cartridge to override. Just throw
*/
throw new MethodInvocationException("Invocation of method '" + vg.MethodName + "'" + " in " + o.GetType() + " threw exception " + ite.GetBaseException().ToString(), ite.GetBaseException(), vg.MethodName, TemplateName, this.Line, this.Column);
}
}
catch (System.ArgumentException)
{
return(null);
}
/**
* pass through application level runtime exceptions
*/
catch (System.SystemException e)
{
throw e;
}
catch (System.Exception e)
{
string msg = "ASTIdentifier() : exception invoking method " + "for identifier '" + identifier + "' in " + o.GetType();
log.Error(msg, e);
throw new VelocityException(msg, e);
}
}
