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exports.group = function(name) {
var rhqapi = require("modules:/rhqapi")
var group = rhqapi.groups.find({'name':name})[0]
group.deploy = function(fileName) {
var resources = group.resources()
for (i in group.resources()) {
var localhost = resources[i].child({'name':'localhost'})
var fname = new java.io.File(fileName).name
localhost.createChild({
'name':fname,
'type': 'Tomcat Web Application (WAR)',
'content':fileName,
'config':{'explodeOnDeploy':false}
})
}
}
return group;
}
Playing with rhqapi
Recently I wanted to demo how to do something in RHQ’s CLI. It was a fairly simple thing but our API being what it is, built for and implemented in Java, the result ended up being kinda verbose and didn’t exactly look like your modern fluent Javascript code.
I was impressed. The code is easy read and using our CLI and javascript
completion, it even is quite easy to write. Also, there’s a very nice suite
of examples included with rhqapi so it is very easy to get started and
have something done.
I knew what I wanted to do and I would know how to do it using our "raw"
remote API. I’ve never used rhqapi yet I was able to write the same thing
using it in less then hour with the resulting code being at least 50%
shorter and much easier to read than the raw API version would be.
I merely wanted to mass-deploy a WAR file to all "localhost" virtual hosts
of all Tomcat servers in a group. Here’s the CommonJS module I ended up with
using rhqapi. It is so self-explanatory, it doesn’t even need comments ;):
You would use it like this:
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require("file:///tmp/tomcat-mass-deploy.js").group("tomcats").deploy("/tmp/my.war")
This stuff is good and I am very glad it finally made it into RHQ proper. Congrats Libor (now a full time RHQ developer) and Filip to a great library.