Sumit Verma said the following on 01/06/2011 09:37 PM:
> Hi Guys,
>
> Just wanted to confirm that event args set in the xml config are not
> available in the preEvent plugin method. e.g.
No, event-args set in an event-handler are not available in the
preProcess plugin point. They are set when the event-handler is processed.
> <event-handler event="home" access="public">
> <event-arg name="foo" value="bar" />
> </event-handler>
>
> So, in this case foo is not available in the preProcess or preEvent
> plugin method. I was setting up security and was hoping to just set
> <event-arg name="secureEvent" value="true" /> and then check for login
> in the preEvent.
Here's an example of using event-handler name matching. It uses the
simple pattern matcher that is part of Mach-II 1.9 to do the wildcard *
type matching:
<plugin name="login" type="WebAssess.plugins.loginPlugin">
<parameters>
<parameter name="ignoreEvents">
<array>
<element value="home"/>
<element value="login*"/>
<element value="logout"/>
<element value="preview.*"/>
<element value="help.*"/>
<element value="sys.heartbeat"/>
<element value="${properties.exceptionEvent}"/>
</array>
</parameter>
<parameter name="notLoggedInEvent" value="login"/>
</parameters>
</plugin>
Example code
<cfcomponent
displayname="loginPlugin"
extends="MachII.framework.Plugin"
depends="sessionFacade"
output="false"
hint="Checks if a user is logged in.">
<!---
PROPERTIES
--->
<cfset variables.instance = StructNew() />
<cfset variables.matcher = CreateObject("component",
"MachII.util.matching.SimplePatternMatcher").init() />
<!---
INITIALIZATION / CONFIGURATION
--->
<cffunction name="configure" access="public" returntype="void"
output="false"
hint="Configures the plugin.">
<cfif isParameterDefined("ignoreEvents") AND
IsArray(getParameter("ignoreEvents"))>
<cfset
setIgnoreEvents(buildIgnoreEvents(getParameter("ignoreEvents"))) />
<cfelse>
<cfthrow type="LoginPlugin.invalidParameter"
message="The parameter named 'ingoreEvents' is either
not defined in the plugin registration XML or not an array." />
</cfif>
<cfif isParameterDefined("notLoggedInEvent") AND
Len(getParameter("notLoggedInEvent"))>
<cfset setNotLoggedInEvent(getParameter("notLoggedInEvent")) />
<cfelse>
<cfthrow type="LoginPlugin.invalidParameter"
message="The parameter named 'notLoggedInEvent' is
either not defined in the plugin registration XML or does not have a
value." />
</cfif>
</cffunction>
<!---
PUBLIC FUNCTIONS
--->
<cffunction name="preProcess" access="public" returntype="void"
output="false"
hint="Checks to see if the user is logged in during the
preProcess plugin point.">
<cfargument name="eventContext"
type="MachII.framework.EventContext" required="true" />
<cfset var event = arguments.eventContext.getNextEvent() />
<cfset var eventName = event.getRequestName() />
<cfset var ignoreEvents = getIgnoreEvents() / >
<cfset var eH = "" />
<cfset var persistData = StructNew() />
<cfset var persistId = "" />
<cfset var location = "" />
<cfif NOT ignoreEvents.contains(eventName)
AND NOT getSessionFacade().isLoggedIn()>
<!--- Redirect the user to the login page --->
</cfif>
</cffunction>
<!---
PROTECTED FUNCTIONS
--->
<cffunction name="buildIgnoreEvents" access="private"
returntype="any" output="false"
hint="Builds a HashSet of ignore events.">
<cfargument name="rawIgnoreEvents" type="array" required="true" />
<cfset var ignoreEvents = CreateObject("java",
"java.util.HashSet").init() />
<cfset var pattern = "" />
<cfset var eventHandlers =
getAppManager().getEventManager().getEventNames() />
<cfset var i = 0 />
<cfset var j = 0 />
<cfloop from="1" to="#ArrayLen(arguments.rawIgnoreEvents)#"
index="i">
<cfif variables.matcher.isPattern(arguments.rawIgnoreEvents[i])>
<cfloop from="1" to="#ArrayLen(eventHandlers)#" index="j">
<cfif
variables.matcher.match(arguments.rawIgnoreEvents[i], eventHandlers[j])>
<cfset ignoreEvents.add(eventHandlers[j]) />
</cfif>
</cfloop>
<cfelse>
<cfset ignoreEvents.add(bindValue(i,
arguments.rawIgnoreEvents[i])) />
</cfif>
</cfloop>
<cfreturn ignoreEvents />
</cffunction>
<!---
ACCESSORS
--->
<cffunction name="setIgnoreEvents" access="private"
returntype="void" output="false">
<cfargument name="ignoreEvents" type="any" required="true" />
<cfset variables.instance.ignoreEvents = arguments.ignoreEvents />
</cffunction>
<cffunction name="getIgnoreEvents" access="private" returntype="any"
output="false">
<cfreturn variables.instance.ignoreEvents />
</cffunction>
<cffunction name="setNotLoggedInEvent" access="private"
returntype="void" output="false">
<cfargument name="notLoggedInEvent" type="string" required="true" />
<cfset variables.instance.notLoggedInEvent =
arguments.notLoggedInEvent />
</cffunction>
<cffunction name="getNotLoggedInEvent" access="private"
returntype="string" output="false">
<cfreturn variables.instance.notLoggedInEvent />
</cffunction>
</cfcomponent>
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