HP Logiciel HP Matrix Operating Environment - Manuel (Page 230)

•
fonctions
•
requêtes
•
règles
L’ordre dans lequel ces éléments sont déclarés n’est pas important, sauf le nom du package. S’il
est déclaré, le nom du package doit être le premier élément du fichier de règles.
Exemple : Règles permettant de vérifier le critère de mémoire du serveur
package com.hp.hpio.controller.policy;
import java.util.List;
import java.lang.Integer;
import com.hp._2007.ess.sw.model.infrastructureutilityschema.LogicalServer;
import com.hp._2007.ess.sw.model.infrastructureutilityschema.ComputeServer;
import com.hp.hpio.controller.wrapper.LogicalServerWrapper;
import com.hp.hpio.common.messages.HPIOBundleKey;
import com.hp.hpio.common.messages.HPIOMessage;
dialect "java" // Since we are using Java syntax with drools
/*
* INIT should be the first rule in a drl file which inserts service
* entity, resource list and result map into working memory by reading
* from PolicyExecutionVO passed to rule engine.
*
*/
/* DO NOT MODIFY */
rule "INIT"
salience 1000
when
pVO : PolicyExecutionVO();
then
insert(pVO.getAllocationEntry().getServiceEntity());
insert(pVO.getResultMap());
insert(pVO.getResourceList());
end
/*
* Rule to check memory criteria for a given service entity
* (LogicalServer) compared to list of physical resources available
* (ComputeServer)
*
*/
rule "MemorySizeCriteria"
when
$pVO : PolicyExecutionVO( );
$resLst : List();
$logicalServer : LogicalServer();
$computeServer : ComputeServer() from $resLst;
eval(memorySizeCriteria($logicalServer, $computeServer, $pVO));
then
$pVO.match($computeServer, HPIOMessage.get(HPIOBundleKey.ALLOCATION_CRITERIA_MEMORY));
end
function boolean memorySizeCriteria(
LogicalServer logicalServer,
ComputeServer computeServer,
PolicyExecutionVO pVO) {
pVO.doesNotMatch(computeServer,HPIOMessage.get(HPIOBundleKey.ALLOCATION_CRITERIA_MEMORY));
/* -------------- CUSTOM LOGIC ----------------------*/
Integer logicalMemorySizeMB = LogicalServerWrapper.getMemorySizeMi(logicalServer);
if (computeServer.getMemoryConsumedMB() == null) {
computeServer.setMemoryConsumedMB(0);
}
Integer resourceMemorySizeMB = computeServer.getMemorySizeMB() - computeServer.getMemoryConsumedMB();
if(logicalMemorySizeMB.doubleValue() <= resourceMemorySizeMB.doubleValue()){
return true;
}else{
return false;
}
/* -------------- CUSTOM LOGIC ----------------------*/
230 Processus d’allocation personnalisable