Summary: I'm creating a .net object
(System.Reflection.BindingFlags) into a function that takes that
argument. However, when I pass that in, CF can't find the correct
function. If I pass a null value, CF finds it just fine, but
because the function really does need a BindingFlags object to
work, the function causing an exception.
Details: I'm attempting to get the IPSecurity settings from
an IIS entry. In .Net this is done by grabbing the appropriate IIS
object, then getting the "value" of the IPSecurity property. That
value is actually an object. I then get the "Type" for that object
and can manipulate it using the InvokeMember method associated with
"Type" objects. The second parameter it requires is a BindingFlags
object. In .net bindingFlags isn't actually an object in the
traditional sense, it's an enum (more like a struct) and when I use
it properly (BindingFlags.GetProperty) it actually passes an INT. I
think part of my problem is that BindingFlags is actually a struct
that is getting special treatment from CF (adding a wrapper).
What I'd like: In a perfect world I'd like someone to say:
Here is the solution . . .. However, I'd settle for a good way to
find out what type of object CF thinks its getting (BTW, I've done
a CF dump on my object and it has the correct class).
The code:
<cfobject type=".NET" name="entry"
class="System.DirectoryServices.DirectoryEntry"
assembly="C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.DirectoryServices.dll"
/>
<cfset
entry.init("IIS://dev03/w3svc/1/root/planitax/testMe")/>
<cfobject type=".NET" name="BindingFlags"
class="System.Reflection.BindingFlags" />
<cfset BindingFlags.init() />
<cfset params = ["IPSecurity"] />
<cfset comObj = entry.Invoke("Get", params) />
<cfset comType = comObj.GetType() />
<cfset object = comType.InvokeMember("IPDeny",
BindingFlags.GetProperty, javacast("null",""), comObj,
javacast("null","")) />
Error:
The InvokeMember method was not found.
Either there are no methods with the specified method name
and argument types, or the InvokeMember method is overloaded with
argument types that ColdFusion cannot decipher reliably. ColdFusion
found 0 methods that matched the provided arguments. If this is a
Java object and you verified that the method exists, you may need
to use the javacast function to reduce ambiguity.
Trace:
coldfusion.runtime.java.MethodSelectionException: The
InvokeMember method was not found.
at
coldfusion.runtime.java.ObjectHandler.findMethodUsingCFMLRules(ObjectHandler.java:307)
at coldfusion.runtime.StructBean.invoke(StructBean.java:514)
at coldfusion.runtime.CfJspPage._invoke(CfJspPage.java:2291)
at cftest2ecfm659646706.runPage(D:\Documents and
Settings\rex.m.phillips\workspace\IISModifier\test.cfm:16)
at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:192)
at
coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:366)
at
coldfusion.filter.CfincludeFilter.invoke(CfincludeFilter.java:65)
at
coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:279)
at
coldfusion.filter.RequestMonitorFilter.invoke(RequestMonitorFilter.java:48)
at
coldfusion.filter.MonitoringFilter.invoke(MonitoringFilter.java:40)
at coldfusion.filter.PathFilter.invoke(PathFilter.java:86)
at
coldfusion.filter.LicenseFilter.invoke(LicenseFilter.java:27)
at
coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:70)
at
coldfusion.filter.BrowserDebugFilter.invoke(BrowserDebugFilter.java:74)
at
coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28)
at
coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38)
at
coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:46)
at
coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38)
at
coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
at coldfusion.CfmServlet.service(CfmServlet.java:175)
at
coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:89)
at jrun.servlet.FilterChain.doFilter(FilterChain.java:86)
at
coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:42)
at
coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:46)
at jrun.servlet.FilterChain.doFilter(FilterChain.java:94)
at jrun.servlet.FilterChain.service(FilterChain.java:101)
at
jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:106)
at
jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
at
jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:284)
at
jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:543)
at
jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:203)
at
jrunx.scheduler.ThreadPool$DownstreamMetrics.invokeRunnable(ThreadPool.java:320)
at
jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:428)
at
jrunx.scheduler.ThreadPool$UpstreamMetrics.invokeRunnable(ThreadPool.java:266)
at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)
BTW, if I use a NULL value instead, I get following (note
that it shows how to use the function):
System.ArgumentException: Must specify binding flags
describing the invoke operation required (BindingFlags.InvokeMethod
CreateInstance GetField SetField GetProperty SetProperty).
Parameter name: bindingFlags
at System.RuntimeType.InvokeMember(String name, BindingFlags
bindingFlags, Binder binder, Object target, Object[] providedArgs,
ParameterModifier[] modifiers, CultureInfo culture, String[]
namedParams)
at System.Type.InvokeMember(String name, BindingFlags
invokeAttr, Binder binder, Object target, Object[] args)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at
java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at com.jnbridge.jnbcore.DotNetObjectBase.a(Unknown Source)
at
com.jnbridge.jnbcore.ExceptionFactory.throwException(Unknown
Source)
at System.Type.InvokeMember()
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at coldfusion.runtime.StructBean.invoke(StructBean.java:498)
at coldfusion.runtime.CfJspPage._invoke(CfJspPage.java:2291)
at cftest2ecfm659646706.runPage(D:\Documents and
Settings\rex.m.phillips\workspace\IISModifier\test.cfm:15)
at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:192)
at
coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:366)
at
coldfusion.filter.CfincludeFilter.invoke(CfincludeFilter.java:65)
at
coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:279)
at
coldfusion.filter.RequestMonitorFilter.invoke(RequestMonitorFilter.java:48)
at
coldfusion.filter.MonitoringFilter.invoke(MonitoringFilter.java:40)
at coldfusion.filter.PathFilter.invoke(PathFilter.java:86)
at
coldfusion.filter.LicenseFilter.invoke(LicenseFilter.java:27)
at
coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:70)
at
coldfusion.filter.BrowserDebugFilter.invoke(BrowserDebugFilter.java:74)
at
coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28)
at
coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38)
at
coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:46)
at
coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38)
at
coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
at coldfusion.CfmServlet.service(CfmServlet.java:175)
at
coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:89)
at jrun.servlet.FilterChain.doFilter(FilterChain.java:86)
at
coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:42)
at
coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:46)
at jrun.servlet.FilterChain.doFilter(FilterChain.java:94)
at jrun.servlet.FilterChain.service(FilterChain.java:101)
at
jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:106)
at
jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
at
jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:284)
at
jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:543)
at
jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:203)
at
jrunx.scheduler.ThreadPool$DownstreamMetrics.invokeRunnable(ThreadPool.java:320)
at
jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:428)
at
jrunx.scheduler.ThreadPool$UpstreamMetrics.invokeRunnable(ThreadPool.java:266)
at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)
1
Reply
AdChoices