Can someone help me understand a java rule?
by Aijin Nakanishi
I'm trying to understand when is proccess assigned to a computer by that
java example.
----------------
public HardAndSoftScore calculateScore(CloudBalance cloudBalance) {
int hardScore = 0;
int softScore = 0;
for (CloudComputer computer : cloudBalance.getComputerList()) {
int cpuPowerUsage = 0;
int memoryUsage = 0;
int networkBandwidthUsage = 0;
boolean used = false;
// Calculate usage
for (CloudProcess process : cloudBalance.getProcessList()) {
if (computer.equals(process.getComputer())) {
cpuPowerUsage += process.getRequiredCpuPower();
memoryUsage += process.getRequiredMemory();
networkBandwidthUsage +=
process.getRequiredNetworkBandwidth();
used = true;
}
}
// Hard constraints
int cpuPowerAvailable = computer.getCpuPower() - cpuPowerUsage;
if (cpuPowerAvailable < 0) {
hardScore += cpuPowerAvailable;
}
int memoryAvailable = computer.getMemory() - memoryUsage;
if (memoryAvailable < 0) {
hardScore += memoryAvailable;
}
int networkBandwidthAvailable = computer.getNetworkBandwidth()
- networkBandwidthUsage;
if (networkBandwidthAvailable < 0) {
hardScore += networkBandwidthAvailable;
}
// Soft constraints
if (used) {
softScore -= computer.getCost();
}
}
return DefaultHardAndSoftScore.valueOf(hardScore, softScore);
}
--------------------
I didn't understand how the cloudcomputers received it
13 years, 4 months
Hard constraint on selecting a skill
by André Fróes
Hello!
I'm still not getting good with drools rules, i'm trying several examples
and basic ones. Some i did without any problem and understood plenty well,
but when I try to make an approach to what i'm aiming, I'm not able to.
Right now I'm trying to compose this:
When
there's an workorder with skill
and there's and engineer with the skill and capable of doing that
workorder
then
the engineer should do it
So i tried something like this:
rule "assignSkillWOToSkilledEngineer"
when
$wo : WorkOrder( $requiredSkill : requiredSkill )
$engineer : Engineer(skill == $requiredSkill)
then
insertLogical(new IntConstraintOccurrence("assignSkillWOToSkilledEngineer",
ConstraintType.NEGATIVE_HARD,
1, $engineer));
end
i get no exceptions, but the sort is not working properly
13 years, 4 months
Guvnor 5.5 - Empty Inbox
by droolist
Here is my setup:
Guvnor 5.5.0 Final
Tomcat 7
Oracle 11g DB for repository
Jackrabbit clustering enabled
Custom Authenticator
Fine grained authorization enabled
Accessing Guvnor on Firefox
I created 2 users and granted "package.admin" to the same package with some
rules.
These 2 users are not Administrators.
Now, when these 2 users edit the same rule, I was hoping to see something in
the Inbox - Incoming Changes for each user. Both the users' inbox are empty.
I had the users different kind of rule updates - comments, category, actual
rule.
I see the list growing in "Recently Opened", but "Recently Edited" and
"Incoming changes" is always empty.
Anybody know if there is any other setting for this feature to work per the
documentation?
thank you
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13 years, 4 months
Business Rules vs DLS Confirguration
by IPatel
Hi,
I have recently started using Guvnor and created simple rules in Business
Rules and DSL Configuration options. For one of my rule, i am using DSL Rule
in WHEN statement but when i try to write THEN statement, i see that i have
2 option "Insert Fact" and "Logically Insert Fact"
So without knowing which one to use, i tried both and i get out of memory
error. I also tried using either and still got the same error.
After this, i created another DSL rule in DSL Configuration and added that
in my THEN statement and it worked.
Can anyone explain what this means?
--
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13 years, 4 months
continuous integration of rule assets via jenkins to guvnor?
by Cedric Hurst
I'd like to get a quick sanity check on best practices...
I'm working on a project where, by policy, all assets (including drl's, bpmn
files, etc) must be built, tested and packaged by a Jenkins server. Rule
assets are structured within a project that also includes non-rule assets.
As is quite common, the primary system of record for these assets is an SCM
like svn or git, and that's what our Jenkins box talks to.
However, for the rule stuff specifically, we're also using Guvnor's
drools-repository to package the assets into a knowledge base, which is
referenced jBPM's process engine in the runtime. The plan is to have
several Guvnor environments running with parity to development, QA, UAT and
production setups. However, we're having a very hard time figuring out how
best to sync our rule assets to these various repositories as part of an
automated release.
To the best of my understanding, rule assets are deployed to a Guvnor
instance file-by-file via WebDAV. One can also upload JARs for POJOs, but
DRLs, BPMN, DSL files need to be synced individually. Is this the case?
And, if so, how do other groups handle continuous integration and deployment
of assets coming from external SCMs?
Btw, I came across aware of a Maven plugin which seems to do this sort of
piece-by-piece deployment:
https://github.com/awaterma/drools-guvnor-plugin
So we could certainly port this sort of functionality to our own build
toolchain, but it seems like a lot of work so I'm hoping for a better way.
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13 years, 4 months
