WarpCore
frameworks, Model Glue, Projects
The name's probably already taken, but what the hell. WarpCore is the name I've given to a very simple implementation of an implicit invocation controller scheme in ColdFusion. The concept is simple: some variable is set that contains an event, the WarpCore handles the registration of new drives (controllers), and the WarpCore controls activating functions in those drives.
Declaring the WarpCore
url.event = "welcome";
WarpCore = CreateObject("component", "cfc.warpCore").init(
trigger: "url.event"
);
WarpCore.addDrive("controller1");
WarpCore.addDrive("controller2");
WarpCore.addDrive("controller3");
WarpCore.execute();
</cfscript>
Example Drive
<cffunction name="welcome">
Welcome from Controller 1<br />
<cfset setEvent('leave')>
</cffunction>
<cffunction name="bye">
Good-bye from Controller 1<br />
</cffunction>
</cfcomponent>
The WarpCore
<cffunction name="init" returntype="warpCore" output="false">
<cfargument name="trigger" type="string" required="false" default="request.func"/>
<cfscript>
variables.core = StructNew();
variables.trigger = arguments.trigger;
variables.cap = 10;
return this;
</cfscript>
</cffunction>
<cfscript>
function addDrive (sControllerPath) {
var objController = CreateObject("component", sControllerPath);
var arrEvents = StructKeyArray(objController);
var iEvents = ArrayLen(arrEvents);
var i = 0;
if (iEvents gt 0) {
for(i = 1; i lte iEvents; i = i + 1) {
if (NOT StructKeyExists(variables.core, arrEvents[i])) {
StructInsert(variables.core, arrEvents[i], ArrayNew(1));
}
ArrayAppend(variables.core[arrEvents[i]], objController[arrEvents[i]]);
}
}
}
function execute() {
var eCurrent = "";
var iCount = variables.cap;
var iEvents = 0;
var x = 0;
var executor = "";
do {
eCurrent = getEvent();
if (StructKeyExists(variables.core, eCurrent)) {
iEvents = ArrayLen(variables.core[eCurrent]);
for (x = 1; x lte iEvents; x = x + 1) {
executor = variables.core[eCurrent][x];
executor();
if (getEvent() neq eCurrent) {
continue;
}
}
}
iCount = iCount - 1;
} while ((getEvent() neq eCurrent) AND (iCount gte 0));
}
function getEvent() {
return evaluate(variables.trigger);
}
function inspect() {
return variables.core;
}
function setEvent (value) {
"#variables.trigger#" = arguments.value;
}
</cfscript>
</cfcomponent>
Any way, thats my 2 hour implementation of an II control scheme like those in Mach-II and Model Glue, just without the XML. I know its ugly: I've already got ideas on better ways to handle the setup. The key thing to me is that I want to be able to detect and register event handlers without resorting to predefining them in XML. I love XML, but I just hate needing to write large chunks of code in XML when I can just have the system automatically register the events for me.
There are no comments for this entry.
Add Comment