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Posted to commits@stratos.apache.org by la...@apache.org on 2014/12/03 15:34:22 UTC

[1/2] stratos git commit: Adding new drools file and cluster monitor changes for new AutoscalerRuleEvaluator

Repository: stratos
Updated Branches:
  refs/heads/master b5f992b73 -> 33e901b15


Adding new drools file and cluster monitor changes for new AutoscalerRuleEvaluator


Project: http://git-wip-us.apache.org/repos/asf/stratos/repo
Commit: http://git-wip-us.apache.org/repos/asf/stratos/commit/33e901b1
Tree: http://git-wip-us.apache.org/repos/asf/stratos/tree/33e901b1
Diff: http://git-wip-us.apache.org/repos/asf/stratos/diff/33e901b1

Branch: refs/heads/master
Commit: 33e901b151ea59cd9d7f96b48a32c02fb0e8ed7e
Parents: 6cda475
Author: Lahiru Sandaruwan <la...@apache.org>
Authored: Wed Dec 3 20:05:52 2014 +0530
Committer: Lahiru Sandaruwan <la...@apache.org>
Committed: Wed Dec 3 20:06:00 2014 +0530

----------------------------------------------------------------------
 .../monitor/cluster/AbstractClusterMonitor.java   | 18 ++++++++++++++----
 .../cluster/KubernetesServiceClusterMonitor.java  | 11 ++++-------
 .../monitor/cluster/VMClusterMonitor.java         | 15 +++++----------
 .../monitor/cluster/VMLbClusterMonitor.java       |  2 +-
 .../common/constants/StratosConstants.java        |  1 +
 5 files changed, 25 insertions(+), 22 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/stratos/blob/33e901b1/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/AbstractClusterMonitor.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/AbstractClusterMonitor.java b/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/AbstractClusterMonitor.java
index 3afda6f..6f5c714 100644
--- a/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/AbstractClusterMonitor.java
+++ b/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/AbstractClusterMonitor.java
@@ -30,6 +30,7 @@ import org.apache.stratos.autoscaler.monitor.events.MonitorScalingEvent;
 import org.apache.stratos.autoscaler.monitor.events.MonitorStatusEvent;
 import org.apache.stratos.autoscaler.rule.AutoscalerRuleEvaluator;
 import org.apache.stratos.common.Properties;
+import org.apache.stratos.common.constants.StratosConstants;
 import org.apache.stratos.messaging.domain.applications.Application;
 import org.apache.stratos.messaging.domain.applications.ApplicationStatus;
 import org.apache.stratos.messaging.domain.applications.Group;
@@ -83,10 +84,19 @@ public abstract class AbstractClusterMonitor extends Monitor implements Runnable
         this.monitoringStarted = new AtomicBoolean(false);
         //this.clusterContext = abstractClusterContext;
         //this.instanceIdToClusterContextMap = new HashMap<String, AbstractClusterContext>();
-        this.obsoleteCheckKnowledgeSession = autoscalerRuleEvaluator.getObsoleteCheckStatefulSession();
-        this.scaleCheckKnowledgeSession = autoscalerRuleEvaluator.getScaleCheckStatefulSession();
-        this.minCheckKnowledgeSession = autoscalerRuleEvaluator.getMinCheckStatefulSession();
-        this.dependentScaleCheckKnowledgeSession = autoscalerRuleEvaluator.getMinCheckStatefulSession();
+        autoscalerRuleEvaluator.parseAndBuildKnowledgeBaseForDroolsFile(StratosConstants.VM_OBSOLETE_CHECK_DROOL_FILE);
+        autoscalerRuleEvaluator.parseAndBuildKnowledgeBaseForDroolsFile(StratosConstants.VM_SCALE_CHECK_DROOL_FILE);
+        autoscalerRuleEvaluator.parseAndBuildKnowledgeBaseForDroolsFile(StratosConstants.VM_MIN_CHECK_DROOL_FILE);
+        autoscalerRuleEvaluator.parseAndBuildKnowledgeBaseForDroolsFile(StratosConstants.DEPENDENT_SCALE_CHECK_DROOL_FILE);
+
+        this.obsoleteCheckKnowledgeSession = autoscalerRuleEvaluator.getStatefulSession(
+                StratosConstants.VM_OBSOLETE_CHECK_DROOL_FILE);
+        this.scaleCheckKnowledgeSession = autoscalerRuleEvaluator.getStatefulSession(
+                StratosConstants.VM_SCALE_CHECK_DROOL_FILE);
+        this.minCheckKnowledgeSession = autoscalerRuleEvaluator.getStatefulSession(
+                StratosConstants.VM_MIN_CHECK_DROOL_FILE);
+        this.dependentScaleCheckKnowledgeSession = autoscalerRuleEvaluator.getStatefulSession(
+                StratosConstants.DEPENDENT_SCALE_CHECK_DROOL_FILE);
         this.status = ClusterStatus.Created;
     }
 

http://git-wip-us.apache.org/repos/asf/stratos/blob/33e901b1/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/KubernetesServiceClusterMonitor.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/KubernetesServiceClusterMonitor.java b/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/KubernetesServiceClusterMonitor.java
index 7fabbec..f4fd0b7 100644
--- a/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/KubernetesServiceClusterMonitor.java
+++ b/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/KubernetesServiceClusterMonitor.java
@@ -47,10 +47,7 @@ public final class KubernetesServiceClusterMonitor extends KubernetesClusterMoni
 
     public KubernetesServiceClusterMonitor(String serviceType, String clusterId) {
         super(serviceType, clusterId,
-                new AutoscalerRuleEvaluator(
-                        StratosConstants.CONTAINER_MIN_CHECK_DROOL_FILE,
-                        StratosConstants.CONTAINER_OBSOLETE_CHECK_DROOL_FILE,
-                        StratosConstants.CONTAINER_SCALE_CHECK_DROOL_FILE));
+                new AutoscalerRuleEvaluator());
         readConfigurations();
     }
 
@@ -114,7 +111,7 @@ public final class KubernetesServiceClusterMonitor extends KubernetesClusterMoni
                 log.debug(String.format(
                         "Running scale check for [kub-cluster] : %s [cluster] : %s ", kubernetesClusterID, getClusterId()));
             }
-            scaleCheckFactHandle = AutoscalerRuleEvaluator.evaluateScaleCheck(
+            scaleCheckFactHandle = AutoscalerRuleEvaluator.evaluate(
                     getScaleCheckKnowledgeSession(), scaleCheckFactHandle, getKubernetesClusterCtxt());
             getKubernetesClusterCtxt().setRifReset(false);
             getKubernetesClusterCtxt().setMemoryConsumptionReset(false);
@@ -137,7 +134,7 @@ public final class KubernetesServiceClusterMonitor extends KubernetesClusterMoni
             log.debug(String.format(
                     "Running min check for [kub-cluster] : %s [cluster] : %s ", kubernetesClusterID, getClusterId()));
         }
-        minCheckFactHandle = AutoscalerRuleEvaluator.evaluateMinCheck(
+        minCheckFactHandle = AutoscalerRuleEvaluator.evaluate(
                 getMinCheckKnowledgeSession(), minCheckFactHandle,
                 getKubernetesClusterCtxt());
     }
@@ -149,7 +146,7 @@ public final class KubernetesServiceClusterMonitor extends KubernetesClusterMoni
             log.debug(String.format(
                     "Running obsolete check for [kub-cluster] : %s [cluster] : %s ", kubernetesClusterID, getClusterId()));
         }
-        obsoleteCheckFactHandle = AutoscalerRuleEvaluator.evaluateMinCheck(
+        obsoleteCheckFactHandle = AutoscalerRuleEvaluator.evaluate(
                 getObsoleteCheckKnowledgeSession(), obsoleteCheckFactHandle,
                 getKubernetesClusterCtxt());
     }

http://git-wip-us.apache.org/repos/asf/stratos/blob/33e901b1/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/VMClusterMonitor.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/VMClusterMonitor.java b/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/VMClusterMonitor.java
index e55377b..3763c94 100644
--- a/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/VMClusterMonitor.java
+++ b/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/VMClusterMonitor.java
@@ -35,7 +35,6 @@ import org.apache.stratos.autoscaler.monitor.events.MonitorStatusEvent;
 import org.apache.stratos.autoscaler.monitor.events.builder.MonitorStatusEventBuilder;
 import org.apache.stratos.autoscaler.rule.AutoscalerRuleEvaluator;
 import org.apache.stratos.autoscaler.status.processor.cluster.ClusterStatusTerminatedProcessor;
-import org.apache.stratos.autoscaler.util.StatusChecker;
 import org.apache.stratos.autoscaler.status.processor.cluster.ClusterStatusActiveProcessor;
 import org.apache.stratos.autoscaler.status.processor.cluster.ClusterStatusInActiveProcessor;
 import org.apache.stratos.autoscaler.util.AutoScalerConstants;
@@ -45,7 +44,6 @@ import org.apache.stratos.autoscaler.util.ServiceReferenceHolder;
 import org.apache.stratos.cloud.controller.stub.domain.MemberContext;
 import org.apache.stratos.common.Properties;
 import org.apache.stratos.common.Property;
-import org.apache.stratos.common.constants.StratosConstants;
 import org.apache.stratos.messaging.domain.applications.ApplicationStatus;
 import org.apache.stratos.messaging.domain.applications.GroupStatus;
 import org.apache.stratos.messaging.domain.topology.Cluster;
@@ -70,10 +68,7 @@ public class VMClusterMonitor extends AbstractClusterMonitor {
     private float scalingFactorBasedOnDependencies = 1.0f;
 
     protected VMClusterMonitor(String serviceType, String clusterId) {
-        super(serviceType, clusterId, new AutoscalerRuleEvaluator(
-                StratosConstants.VM_MIN_CHECK_DROOL_FILE,
-                StratosConstants.VM_OBSOLETE_CHECK_DROOL_FILE,
-                StratosConstants.VM_SCALE_CHECK_DROOL_FILE));
+        super(serviceType, clusterId, new AutoscalerRuleEvaluator());
         this.networkPartitionIdToClusterLevelNetworkPartitionCtxts = new HashMap<String, ClusterLevelNetworkPartitionContext>();
 
         readConfigurations();
@@ -218,10 +213,10 @@ public class VMClusterMonitor extends AbstractClusterMonitor {
                                         instanceContext.getId()));
                             }
 
-                            minCheckFactHandle = AutoscalerRuleEvaluator.evaluateMinCheck(getMinCheckKnowledgeSession(),
+                            minCheckFactHandle = AutoscalerRuleEvaluator.evaluate(getMinCheckKnowledgeSession(),
                                     minCheckFactHandle, instanceContext);
 
-                            obsoleteCheckFactHandle = AutoscalerRuleEvaluator.evaluateObsoleteCheck(
+                            obsoleteCheckFactHandle = AutoscalerRuleEvaluator.evaluate(
                                     getObsoleteCheckKnowledgeSession(), obsoleteCheckFactHandle, instanceContext);
 
                             //checking the status of the cluster
@@ -257,7 +252,7 @@ public class VMClusterMonitor extends AbstractClusterMonitor {
                                     log.debug(" Primary members : " + primaryMemberListInClusterInstance);
                                 }
 
-                                scaleCheckFactHandle = AutoscalerRuleEvaluator.evaluateScaleCheck(getScaleCheckKnowledgeSession()
+                                scaleCheckFactHandle = AutoscalerRuleEvaluator.evaluate(getScaleCheckKnowledgeSession()
                                         , scaleCheckFactHandle, instanceContext);
 
                                 instanceContext.setRifReset(false);
@@ -376,7 +371,7 @@ public class VMClusterMonitor extends AbstractClusterMonitor {
         getDependentScaleCheckKnowledgeSession().setGlobal("instanceRoundingFactor",
                 vmClusterContext.getAutoscalePolicy().getInstanceRoundingFactor());
 
-        dependentScaleCheckFactHandle = AutoscalerRuleEvaluator.evaluateScaleCheck(getScaleCheckKnowledgeSession()
+        dependentScaleCheckFactHandle = AutoscalerRuleEvaluator.evaluate(getScaleCheckKnowledgeSession()
                 , scaleCheckFactHandle, clusterLevelNetworkPartitionContext);
 
     }

http://git-wip-us.apache.org/repos/asf/stratos/blob/33e901b1/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/VMLbClusterMonitor.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/VMLbClusterMonitor.java b/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/VMLbClusterMonitor.java
index 370a2a3..a69d3bd 100644
--- a/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/VMLbClusterMonitor.java
+++ b/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/VMLbClusterMonitor.java
@@ -105,7 +105,7 @@
 //                                }
 //
 //                                minCheckFactHandle =
-//                                        AutoscalerRuleEvaluator.evaluateMinCheck(getMinCheckKnowledgeSession(),
+//                                        AutoscalerRuleEvaluator.evaluate(getMinCheckKnowledgeSession(),
 //                                                minCheckFactHandle,
 //                                                partitionContext);
 //                                obsoleteCheckFactHandle =

http://git-wip-us.apache.org/repos/asf/stratos/blob/33e901b1/components/org.apache.stratos.common/src/main/java/org/apache/stratos/common/constants/StratosConstants.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.common/src/main/java/org/apache/stratos/common/constants/StratosConstants.java b/components/org.apache.stratos.common/src/main/java/org/apache/stratos/common/constants/StratosConstants.java
index 38e91af..36a0f20 100644
--- a/components/org.apache.stratos.common/src/main/java/org/apache/stratos/common/constants/StratosConstants.java
+++ b/components/org.apache.stratos.common/src/main/java/org/apache/stratos/common/constants/StratosConstants.java
@@ -158,6 +158,7 @@ public class StratosConstants {
     public static final String DROOLS_DIR_NAME = "drools";
     public static final String CONTAINER_SCALE_CHECK_DROOL_FILE = "container-scaling.drl";
     public static final String VM_SCALE_CHECK_DROOL_FILE = "scaling.drl";
+    public static final String DEPENDENT_SCALE_CHECK_DROOL_FILE = "dependent-scaling.drl";
     public static final String CONTAINER_MIN_CHECK_DROOL_FILE = "container-mincheck.drl";
     public static final String VM_MIN_CHECK_DROOL_FILE = "mincheck.drl";
     public static final String CONTAINER_OBSOLETE_CHECK_DROOL_FILE = "container-obsoletecheck.drl";


[2/2] stratos git commit: Adjust AutoscalerRuleEvaluator to use it for building any new drls file

Posted by la...@apache.org.
Adjust AutoscalerRuleEvaluator to use it for building any new drls file


Project: http://git-wip-us.apache.org/repos/asf/stratos/repo
Commit: http://git-wip-us.apache.org/repos/asf/stratos/commit/6cda475d
Tree: http://git-wip-us.apache.org/repos/asf/stratos/tree/6cda475d
Diff: http://git-wip-us.apache.org/repos/asf/stratos/diff/6cda475d

Branch: refs/heads/master
Commit: 6cda475d456f684417249786cc8e0339934e9036
Parents: b5f992b
Author: Lahiru Sandaruwan <la...@apache.org>
Authored: Wed Dec 3 20:05:02 2014 +0530
Committer: Lahiru Sandaruwan <la...@apache.org>
Committed: Wed Dec 3 20:06:00 2014 +0530

----------------------------------------------------------------------
 .../rule/AutoscalerRuleEvaluator.java           | 291 ++++++++++---------
 1 file changed, 150 insertions(+), 141 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/stratos/blob/6cda475d/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/rule/AutoscalerRuleEvaluator.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/rule/AutoscalerRuleEvaluator.java b/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/rule/AutoscalerRuleEvaluator.java
index 7c7f70a..57fd4a0 100644
--- a/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/rule/AutoscalerRuleEvaluator.java
+++ b/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/rule/AutoscalerRuleEvaluator.java
@@ -35,6 +35,8 @@ import org.drools.runtime.rule.FactHandle;
 import org.wso2.carbon.utils.CarbonUtils;
 
 import java.io.File;
+import java.util.HashMap;
+import java.util.Map;
 import java.util.Properties;
 
 /**
@@ -45,174 +47,181 @@ public class AutoscalerRuleEvaluator {
 	
 	private static final Log log = LogFactory.getLog(AutoscalerRuleEvaluator.class);
 
-	//vm drool files as default
-	private String minCheckDroolFileName = StratosConstants.CONTAINER_MIN_CHECK_DROOL_FILE;
-	private String obsoleteCheckDroolFileName = StratosConstants.CONTAINER_OBSOLETE_CHECK_DROOL_FILE;
-	private String scaleCheckDroolFileName = StratosConstants.CONTAINER_SCALE_CHECK_DROOL_FILE;
-	private String terminateAllDroolFileName = "terminateall.drl";
-
-	private static KnowledgeBase minCheckKbase;
-	private static KnowledgeBase obsoleteCheckKbase;
-	private static KnowledgeBase scaleCheckKbase;
-	@SuppressWarnings("unused")
-	private static KnowledgeBase terminateAllKbase;
-
-    public AutoscalerRuleEvaluator(String minCheckDroolFileName, String obsoleteCheckDroolFileName, String scaleCheckDroolFileName){
-    	
-    	if (minCheckDroolFileName != null && !minCheckDroolFileName.isEmpty()) {
-    		this.minCheckDroolFileName = minCheckDroolFileName;
-		}
-
-    	if (obsoleteCheckDroolFileName != null && !obsoleteCheckDroolFileName.isEmpty()) {
-    		this.obsoleteCheckDroolFileName = obsoleteCheckDroolFileName;
-		}
-    	
-    	if (scaleCheckDroolFileName != null && !scaleCheckDroolFileName.isEmpty()) {
-    		this.scaleCheckDroolFileName = scaleCheckDroolFileName;
-		}
-
-        minCheckKbase = readKnowledgeBase(this.minCheckDroolFileName);
+//	//vm drool files as default
+//	private String minCheckDroolFileName = StratosConstants.CONTAINER_MIN_CHECK_DROOL_FILE;
+//	private String obsoleteCheckDroolFileName = StratosConstants.CONTAINER_OBSOLETE_CHECK_DROOL_FILE;
+//	private String scaleCheckDroolFileName = StratosConstants.CONTAINER_SCALE_CHECK_DROOL_FILE;
+//
+//	private static KnowledgeBase minCheckKbase;
+//	private static KnowledgeBase obsoleteCheckKbase;
+//	private static KnowledgeBase scaleCheckKbase;
 
-        if (log.isDebugEnabled()) {
-            log.debug("Minimum check rule is parsed successfully : " + this.minCheckDroolFileName);
-        }
-        
-        obsoleteCheckKbase = readKnowledgeBase(this.obsoleteCheckDroolFileName);
+    private static Map<String, KnowledgeBase> knowledgeBases;
 
-        if (log.isDebugEnabled()) {
-            log.debug("Obsolete check rule is parsed successfully : " + this.obsoleteCheckDroolFileName);
-        }
+    public AutoscalerRuleEvaluator(){
 
-        scaleCheckKbase = readKnowledgeBase(this.scaleCheckDroolFileName);
+        knowledgeBases = new HashMap<String, KnowledgeBase>();
+//    	if (minCheckDroolFileName != null && !minCheckDroolFileName.isEmpty()) {
+//    		this.minCheckDroolFileName = minCheckDroolFileName;
+//		}
+//
+//    	if (obsoleteCheckDroolFileName != null && !obsoleteCheckDroolFileName.isEmpty()) {
+//    		this.obsoleteCheckDroolFileName = obsoleteCheckDroolFileName;
+//		}
+//
+//    	if (scaleCheckDroolFileName != null && !scaleCheckDroolFileName.isEmpty()) {
+//    		this.scaleCheckDroolFileName = scaleCheckDroolFileName;
+//		}
+//
+//        minCheckKbase = readKnowledgeBase(this.minCheckDroolFileName);
+//
+//        if (log.isDebugEnabled()) {
+//            log.debug("Minimum check rule is parsed successfully : " + this.minCheckDroolFileName);
+//        }
+//
+//        obsoleteCheckKbase = readKnowledgeBase(this.obsoleteCheckDroolFileName);
+//
+//        if (log.isDebugEnabled()) {
+//            log.debug("Obsolete check rule is parsed successfully : " + this.obsoleteCheckDroolFileName);
+//        }
+//
+//        scaleCheckKbase = readKnowledgeBase(this.scaleCheckDroolFileName);
+//
+//        if (log.isDebugEnabled()) {
+//            log.debug("Scale check rule is parsed successfully : " + this.scaleCheckDroolFileName);
+//        }
+//
+    }
 
-        if (log.isDebugEnabled()) {
-            log.debug("Scale check rule is parsed successfully : " + this.scaleCheckDroolFileName);
-        }
-        
-        terminateAllKbase = readKnowledgeBase(this.terminateAllDroolFileName);
+    public void parseAndBuildKnowledgeBaseForDroolsFile(String drlFileName){
+
+        knowledgeBases.put(drlFileName, readKnowledgeBase(drlFileName));
 
         if (log.isDebugEnabled()) {
-            log.debug("Terminate all rule is parsed successfully : " + this.terminateAllDroolFileName);
+            log.debug("Drools file is parsed successfully : " + drlFileName);
         }
+
     }
     
-    public static FactHandle evaluateMinCheck(StatefulKnowledgeSession ksession, FactHandle handle, Object obj) {
-        if (handle == null) {
-            ksession.setGlobal("$delegator", new RuleTasksDelegator());
-            handle = ksession.insert(obj);
-        } else {
-            ksession.update(handle, obj);
-        }
-        ksession.fireAllRules();
-        if(log.isDebugEnabled()){
-            log.debug(String.format("Minimum check executed for : %s ", obj));
-        }
-        return handle;
-    }
-    
-    public static FactHandle evaluateObsoleteCheck(StatefulKnowledgeSession ksession, FactHandle handle, Object obj) {
-        if (handle == null) {
-            ksession.setGlobal("$delegator", new RuleTasksDelegator());
-            handle = ksession.insert(obj);
-        } else {
-            ksession.update(handle, obj);
-        }
-        ksession.fireAllRules();
-        if(log.isDebugEnabled()){
-            log.debug(String.format("Obsolete check executed for : %s ", obj));
-        }
-        return handle;
-    }
+    public static FactHandle evaluate(StatefulKnowledgeSession ksession, FactHandle handle, Object obj) {
 
-    public static FactHandle evaluateScaleCheck(StatefulKnowledgeSession ksession, FactHandle handle, Object obj) {
-        if (handle == null) {
-            ksession.setGlobal("$delegator", new RuleTasksDelegator());
-            handle = ksession.insert(obj);
-        } else {
-            ksession.update(handle, obj);
-        }
-        ksession.fireAllRules();
-        if(log.isDebugEnabled()){
-            log.debug(String.format("Scale check executed for : %s ", obj));
-        }
-        return handle;
-    }
 
-    public static FactHandle evaluateDependentScaleCheck(StatefulKnowledgeSession ksession, FactHandle handle, Object obj) {
         if (handle == null) {
-            ksession.setGlobal("$delegator", new RuleTasksDelegator());
+            ksession.setGlobal("delegator", new RuleTasksDelegator());
             handle = ksession.insert(obj);
         } else {
             ksession.update(handle, obj);
         }
         ksession.fireAllRules();
         if(log.isDebugEnabled()){
-            log.debug(String.format("Dependent scale check executed for : %s ", obj));
-        }
-        return handle;
-    }
-
-    public static FactHandle evaluateTerminateAll(StatefulKnowledgeSession ksession, FactHandle handle, Object obj) {
-        if (handle == null) {
-            ksession.setGlobal("$delegator", new RuleTasksDelegator());
-            handle = ksession.insert(obj);
-        } else {
-            ksession.update(handle, obj);
-        }
-        ksession.fireAllRules();
-        if(log.isDebugEnabled()){
-            log.debug(String.format("Terminate all check executed for : %s ", obj));
-        }
-        return handle;
-    }
-    
-    public static FactHandle evaluateTerminateDependency(StatefulKnowledgeSession ksession, FactHandle handle, Object obj) {
-    	if(log.isDebugEnabled()){
-            log.debug(String.format("Terminate dependency check executing for : %s ", obj));
-        }
-        if (handle == null) {
-            ksession.setGlobal("$delegator", new RuleTasksDelegator());
-            handle = ksession.insert(obj);
-        } else {
-            ksession.update(handle, obj);
-        }
-        if(log.isDebugEnabled()){
-            log.debug(String.format("Terminate dependency check firing rules for : %s ", ksession));
-        }
-        ksession.fireAllRules();
-        if(log.isDebugEnabled()){
-            log.debug(String.format("Terminate dependency check executed for : %s ", obj));
+            log.debug(String.format("Minimum check executed for : %s ", obj));
         }
         return handle;
     }
+//
+//    public static FactHandle evaluateObsoleteCheck(StatefulKnowledgeSession ksession, FactHandle handle, Object obj) {
+//        if (handle == null) {
+//            ksession.setGlobal("delegator", new RuleTasksDelegator());
+//            handle = ksession.insert(obj);
+//        } else {
+//            ksession.update(handle, obj);
+//        }
+//        ksession.fireAllRules();
+//        if(log.isDebugEnabled()){
+//            log.debug(String.format("Obsolete check executed for : %s ", obj));
+//        }
+//        return handle;
+//    }
+//
+//    public static FactHandle evaluateScaleCheck(StatefulKnowledgeSession ksession, FactHandle handle, Object obj) {
+//        if (handle == null) {
+//            ksession.setGlobal("delegator", new RuleTasksDelegator());
+//            handle = ksession.insert(obj);
+//        } else {
+//            ksession.update(handle, obj);
+//        }
+//        ksession.fireAllRules();
+//        if(log.isDebugEnabled()){
+//            log.debug(String.format("Scale check executed for : %s ", obj));
+//        }
+//        return handle;
+//    }
+//
+//    public static FactHandle evaluateDependentScaleCheck(StatefulKnowledgeSession ksession, FactHandle handle, Object obj) {
+//        if (handle == null) {
+//            ksession.setGlobal("delegator", new RuleTasksDelegator());
+//            handle = ksession.insert(obj);
+//        } else {
+//            ksession.update(handle, obj);
+//        }
+//        ksession.fireAllRules();
+//        if(log.isDebugEnabled()){
+//            log.debug(String.format("Dependent scale check executed for : %s ", obj));
+//        }
+//        return handle;
+//    }
+//
+//    public static FactHandle evaluateTerminateAll(StatefulKnowledgeSession ksession, FactHandle handle, Object obj) {
+//        if (handle == null) {
+//            ksession.setGlobal("delegator", new RuleTasksDelegator());
+//            handle = ksession.insert(obj);
+//        } else {
+//            ksession.update(handle, obj);
+//        }
+//        ksession.fireAllRules();
+//        if(log.isDebugEnabled()){
+//            log.debug(String.format("Terminate all check executed for : %s ", obj));
+//        }
+//        return handle;
+//    }
+//
+//    public static FactHandle evaluateTerminateDependency(StatefulKnowledgeSession ksession, FactHandle handle, Object obj) {
+//    	if(log.isDebugEnabled()){
+//            log.debug(String.format("Terminate dependency check executing for : %s ", obj));
+//        }
+//        if (handle == null) {
+//            ksession.setGlobal("delegator", new RuleTasksDelegator());
+//            handle = ksession.insert(obj);
+//        } else {
+//            ksession.update(handle, obj);
+//        }
+//        if(log.isDebugEnabled()){
+//            log.debug(String.format("Terminate dependency check firing rules for : %s ", ksession));
+//        }
+//        ksession.fireAllRules();
+//        if(log.isDebugEnabled()){
+//            log.debug(String.format("Terminate dependency check executed for : %s ", obj));
+//        }
+//        return handle;
+//    }
 
-    public StatefulKnowledgeSession getMinCheckStatefulSession() {
-        StatefulKnowledgeSession ksession;
-        ksession = minCheckKbase.newStatefulKnowledgeSession();
-        ksession.setGlobal("log", RuleLog.getInstance());
-        return ksession;
-    }
-    
-    public StatefulKnowledgeSession getObsoleteCheckStatefulSession() {
-        StatefulKnowledgeSession ksession;
-        ksession = obsoleteCheckKbase.newStatefulKnowledgeSession();
-        ksession.setGlobal("log", RuleLog.getInstance());
-        return ksession;
-    }
-    
-    public StatefulKnowledgeSession getScaleCheckStatefulSession() {
+    public StatefulKnowledgeSession getStatefulSession(String drlFileName) {
         StatefulKnowledgeSession ksession;
-        ksession = scaleCheckKbase.newStatefulKnowledgeSession();
+        ksession = knowledgeBases.get(drlFileName).newStatefulKnowledgeSession();
         ksession.setGlobal("log", RuleLog.getInstance());
         return ksession;
     }
     
-    public StatefulKnowledgeSession getTerminateAllStatefulSession() {
-        StatefulKnowledgeSession ksession;
-        ksession = scaleCheckKbase.newStatefulKnowledgeSession();
-        ksession.setGlobal("log", RuleLog.getInstance());
-        return ksession;
-    }
+//    public StatefulKnowledgeSession getObsoleteCheckStatefulSession() {
+//        StatefulKnowledgeSession ksession;
+//        ksession = obsoleteCheckKbase.newStatefulKnowledgeSession();
+//        ksession.setGlobal("log", RuleLog.getInstance());
+//        return ksession;
+//    }
+//
+//    public StatefulKnowledgeSession getScaleCheckStatefulSession() {
+//        StatefulKnowledgeSession ksession;
+//        ksession = scaleCheckKbase.newStatefulKnowledgeSession();
+//        ksession.setGlobal("log", RuleLog.getInstance());
+//        return ksession;
+//    }
+//
+//    public StatefulKnowledgeSession getTerminateAllStatefulSession() {
+//        StatefulKnowledgeSession ksession;
+//        ksession = scaleCheckKbase.newStatefulKnowledgeSession();
+//        ksession.setGlobal("log", RuleLog.getInstance());
+//        return ksession;
+//    }
 
 //    public static String getLbClusterId(ClusterLevelPartitionContext clusterMonitorPartitionContext, String nwpartitionId) {
 //        Properties props = clusterMonitorPartitionContext.getProperties();