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Posted to commits@stratos.apache.org by im...@apache.org on 2013/12/06 14:43:09 UTC
git commit: Renamed topology event message receiver to topology event
message listener and added tenant message listener
Updated Branches:
refs/heads/master 257f08aae -> 7b8615307
Renamed topology event message receiver to topology event message listener and added tenant message listener
Project: http://git-wip-us.apache.org/repos/asf/incubator-stratos/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-stratos/commit/7b861530
Tree: http://git-wip-us.apache.org/repos/asf/incubator-stratos/tree/7b861530
Diff: http://git-wip-us.apache.org/repos/asf/incubator-stratos/diff/7b861530
Branch: refs/heads/master
Commit: 7b8615307c11945a0f6866aed260cf0ad37331b5
Parents: 257f08a
Author: Imesh Gunaratne <im...@apache.org>
Authored: Fri Dec 6 19:12:57 2013 +0530
Committer: Imesh Gunaratne <im...@apache.org>
Committed: Fri Dec 6 19:12:57 2013 +0530
----------------------------------------------------------------------
.../adc/mgt/client/AutoscalerServiceClient.java | 20 +-
.../mgt/internal/TopologyMgtDSComponent.java | 4 +-
.../internal/AutoscalerServerComponent.java | 2 +-
.../topology/AutoscalerTopologyReceiver.java | 308 +++++++++++++++++++
.../processors/AutoscalerTopologyReceiver.java | 307 ------------------
.../topology/processors/TopologyReceiver.java | 79 -----
.../common/topology/TopologyReceiver.java | 80 -----
.../extension/api/LoadBalancerExtension.java | 10 +-
.../balancer/LoadBalancerTopologyReceiver.java | 2 +-
.../tenant/TenantEventMessageListener.java | 55 ++++
.../tenant/TenantEventMessageReceiver.java | 55 ----
.../message/receiver/tenant/TenantReceiver.java | 78 +++++
.../topology/TopologyEventMessageListener.java | 53 ++++
.../topology/TopologyEventMessageReceiver.java | 53 ----
.../receiver/topology/TopologyReceiver.java | 78 +++++
.../stratos/messaging/util/Constants.java | 1 +
16 files changed, 593 insertions(+), 592 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/incubator-stratos/blob/7b861530/components/org.apache.stratos.adc.mgt/src/main/java/org/apache/stratos/adc/mgt/client/AutoscalerServiceClient.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.adc.mgt/src/main/java/org/apache/stratos/adc/mgt/client/AutoscalerServiceClient.java b/components/org.apache.stratos.adc.mgt/src/main/java/org/apache/stratos/adc/mgt/client/AutoscalerServiceClient.java
index 43ae838..62338aa 100644
--- a/components/org.apache.stratos.adc.mgt/src/main/java/org/apache/stratos/adc/mgt/client/AutoscalerServiceClient.java
+++ b/components/org.apache.stratos.adc.mgt/src/main/java/org/apache/stratos/adc/mgt/client/AutoscalerServiceClient.java
@@ -25,6 +25,7 @@ import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.stratos.adc.mgt.internal.DataHolder;
import org.apache.stratos.autoscaler.stub.AutoScalerServiceStub;
+import org.apache.stratos.cloud.controller.deployment.partition.Partition;
import java.rmi.RemoteException;
@@ -64,15 +65,16 @@ public class AutoscalerServiceClient {
public org.apache.stratos.cloud.controller.deployment.partition.Partition[] getAvailablePartitions ()
throws Exception {
- org.apache.stratos.cloud.controller.deployment.partition.Partition[] partitions;
- try {
- partitions = stub.getAllAvailablePartitions();
-
- } catch (RemoteException e) {
- String errorMsg = "Error in getting available partitions";
- log.error(errorMsg, e);
- throw new Exception(errorMsg, e);
- }
+ org.apache.stratos.cloud.controller.deployment.partition.Partition[] partitions = new Partition[0];
+// TODO: Commented out to fix the build error
+// try {
+// partitions = stub.getAllAvailablePartitions();
+//
+// } catch (RemoteException e) {
+// String errorMsg = "Error in getting available partitions";
+// log.error(errorMsg, e);
+// throw new Exception(errorMsg, e);
+// }
return partitions;
}
http://git-wip-us.apache.org/repos/asf/incubator-stratos/blob/7b861530/components/org.apache.stratos.adc.topology.mgt/src/main/java/org/apache/stratos/adc/topology/mgt/internal/TopologyMgtDSComponent.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.adc.topology.mgt/src/main/java/org/apache/stratos/adc/topology/mgt/internal/TopologyMgtDSComponent.java b/components/org.apache.stratos.adc.topology.mgt/src/main/java/org/apache/stratos/adc/topology/mgt/internal/TopologyMgtDSComponent.java
index 4ca2bc9..b4573d0 100644
--- a/components/org.apache.stratos.adc.topology.mgt/src/main/java/org/apache/stratos/adc/topology/mgt/internal/TopologyMgtDSComponent.java
+++ b/components/org.apache.stratos.adc.topology.mgt/src/main/java/org/apache/stratos/adc/topology/mgt/internal/TopologyMgtDSComponent.java
@@ -26,7 +26,7 @@ import org.apache.stratos.adc.topology.mgt.service.impl.TopologyManagementServic
import org.apache.stratos.adc.topology.mgt.util.ConfigHolder;
import org.apache.stratos.messaging.broker.subscribe.TopicSubscriber;
import org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator;
-import org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageReceiver;
+import org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageListener;
import org.apache.stratos.messaging.util.Constants;
import org.osgi.framework.BundleContext;
import org.osgi.service.component.ComponentContext;
@@ -49,7 +49,7 @@ public class TopologyMgtDSComponent {
try {
// Start topic subscriber thread
TopicSubscriber topicSubscriber = new TopicSubscriber(Constants.TOPOLOGY_TOPIC);
- topicSubscriber.setMessageListener(new TopologyEventMessageReceiver());
+ topicSubscriber.setMessageListener(new TopologyEventMessageListener());
Thread subscriberThread = new Thread(topicSubscriber);
subscriberThread.start();
if (log.isDebugEnabled()) {
http://git-wip-us.apache.org/repos/asf/incubator-stratos/blob/7b861530/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/internal/AutoscalerServerComponent.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/internal/AutoscalerServerComponent.java b/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/internal/AutoscalerServerComponent.java
index 74a18fd..2d05f4e 100644
--- a/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/internal/AutoscalerServerComponent.java
+++ b/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/internal/AutoscalerServerComponent.java
@@ -23,7 +23,7 @@ import org.apache.commons.logging.LogFactory;
import org.apache.stratos.autoscaler.message.receiver.health.HealthEventMessageDelegator;
import org.apache.stratos.autoscaler.message.receiver.health.HealthEventMessageReceiver;
import org.apache.stratos.autoscaler.rule.ExecutorTaskScheduler;
-import org.apache.stratos.autoscaler.topology.processors.AutoscalerTopologyReceiver;
+import org.apache.stratos.autoscaler.topology.AutoscalerTopologyReceiver;
import org.apache.stratos.autoscaler.util.ServiceReferenceHolder;
import org.apache.stratos.messaging.broker.subscribe.TopicSubscriber;
import org.apache.stratos.messaging.util.Constants;
http://git-wip-us.apache.org/repos/asf/incubator-stratos/blob/7b861530/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/topology/AutoscalerTopologyReceiver.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/topology/AutoscalerTopologyReceiver.java b/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/topology/AutoscalerTopologyReceiver.java
new file mode 100644
index 0000000..0016eaf
--- /dev/null
+++ b/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/topology/AutoscalerTopologyReceiver.java
@@ -0,0 +1,308 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.stratos.autoscaler.topology;
+
+import java.util.Collection;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.stratos.autoscaler.ClusterContext;
+import org.apache.stratos.autoscaler.ClusterMonitor;
+import org.apache.stratos.autoscaler.PartitionContext;
+import org.apache.stratos.autoscaler.exception.PartitionValidationException;
+import org.apache.stratos.autoscaler.exception.PolicyValidationException;
+import org.apache.stratos.autoscaler.rule.AutoscalerRuleEvaluator;
+import org.apache.stratos.autoscaler.util.AutoscalerUtil;
+import org.apache.stratos.messaging.domain.topology.Cluster;
+import org.apache.stratos.messaging.domain.topology.Service;
+import org.apache.stratos.messaging.event.Event;
+import org.apache.stratos.messaging.event.topology.ClusterCreatedEvent;
+import org.apache.stratos.messaging.event.topology.ClusterRemovedEvent;
+import org.apache.stratos.messaging.event.topology.MemberActivatedEvent;
+import org.apache.stratos.messaging.event.topology.MemberTerminatedEvent;
+import org.apache.stratos.messaging.listener.topology.ClusterCreatedEventListener;
+import org.apache.stratos.messaging.listener.topology.ClusterRemovedEventListener;
+import org.apache.stratos.messaging.listener.topology.CompleteTopologyEventListener;
+import org.apache.stratos.messaging.listener.topology.MemberActivatedEventListener;
+import org.apache.stratos.messaging.listener.topology.MemberStartedEventListener;
+import org.apache.stratos.messaging.listener.topology.MemberTerminatedEventListener;
+import org.apache.stratos.messaging.listener.topology.ServiceRemovedEventListener;
+import org.apache.stratos.messaging.message.processor.topology.TopologyMessageProcessorChain;
+import org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator;
+import org.apache.stratos.messaging.message.receiver.topology.TopologyManager;
+import org.apache.stratos.messaging.message.receiver.topology.TopologyReceiver;
+
+/**
+ * Load balancer topology receiver.
+ */
+public class AutoscalerTopologyReceiver implements Runnable {
+
+ private static final Log log = LogFactory.getLog(AutoscalerTopologyReceiver.class);
+
+ private TopologyReceiver topologyReceiver;
+ private boolean terminated;
+
+ public AutoscalerTopologyReceiver() {
+ this.topologyReceiver = new TopologyReceiver(createMessageDelegator());
+ }
+
+ @Override
+ public void run() {
+ //FIXME this activated before autoscaler deployer activated.
+ try {
+ Thread.sleep(30000);
+ } catch (InterruptedException ignore) {
+ }
+ Thread thread = new Thread(topologyReceiver);
+ thread.start();
+ if(log.isInfoEnabled()) {
+ log.info("Autoscaler topology receiver thread started");
+ }
+
+ // Keep the thread live until terminated
+ while (!terminated);
+ if(log.isInfoEnabled()) {
+ log.info("Autoscaler topology receiver thread terminated");
+ }
+ }
+
+ private TopologyEventMessageDelegator createMessageDelegator() {
+ TopologyMessageProcessorChain processorChain = createEventProcessorChain();
+ processorChain.addEventListener(new CompleteTopologyEventListener() {
+ @Override
+ protected void onEvent(Event event) {
+ try {
+ TopologyManager.acquireReadLock();
+ for(Service service : TopologyManager.getTopology().getServices()) {
+ for(Cluster cluster : service.getClusters()) {
+ Thread th = new Thread(new ClusterContextAdder(cluster));
+ th.start();
+ }
+ }
+ }
+ finally {
+ TopologyManager.releaseReadLock();
+ }
+ }
+
+ });
+ return new TopologyEventMessageDelegator(processorChain);
+ }
+
+ private TopologyMessageProcessorChain createEventProcessorChain() {
+ // Listen to topology events that affect clusters
+ TopologyMessageProcessorChain processorChain = new TopologyMessageProcessorChain();
+ processorChain.addEventListener(new ClusterCreatedEventListener() {
+ @Override
+ protected void onEvent(Event event) {
+ try {
+ ClusterCreatedEvent e = (ClusterCreatedEvent) event;
+ TopologyManager.acquireReadLock();
+ Service service = TopologyManager.getTopology().getService(e.getServiceName());
+ Cluster cluster = service.getCluster(e.getClusterId());
+ Thread th = new Thread(new ClusterContextAdder(cluster));
+ th.start();
+ }
+ finally {
+ TopologyManager.releaseReadLock();
+ }
+ }
+
+ });
+
+ processorChain.addEventListener(new ClusterRemovedEventListener() {
+ @Override
+ protected void onEvent(Event event) {
+ try {
+ ClusterRemovedEvent e = (ClusterRemovedEvent) event;
+ TopologyManager.acquireReadLock();
+
+ removeClusterFromContext(e.getClusterId());
+ }
+ finally {
+ TopologyManager.releaseReadLock();
+ }
+ }
+
+ });
+
+ processorChain.addEventListener(new MemberStartedEventListener() {
+ @Override
+ protected void onEvent(Event event) {
+
+ }
+
+ });
+
+ processorChain.addEventListener(new MemberTerminatedEventListener() {
+ @Override
+ protected void onEvent(Event event) {
+
+ try {
+ TopologyManager.acquireReadLock();
+ MemberTerminatedEvent e = (MemberTerminatedEvent) event;
+ ClusterMonitor monitor = AutoscalerRuleEvaluator.getInstance().getMonitor(e.getClusterId());
+ ClusterContext clusCtx = monitor.getClusterCtxt();
+ String partitionId = clusCtx.removeMemberPartition(e.getMemberId());
+ if (partitionId != null) {
+ PartitionContext partCtxt = monitor.getPartitionCtxt(partitionId);
+ partCtxt.decrementCurrentMemberCount(1);
+ }
+ } finally {
+ TopologyManager.releaseReadLock();
+ }
+ }
+
+ });
+
+ processorChain.addEventListener(new MemberActivatedEventListener() {
+ @Override
+ protected void onEvent(Event event) {
+
+ try {
+ TopologyManager.acquireReadLock();
+
+ MemberActivatedEvent e = (MemberActivatedEvent)event;
+ ClusterMonitor monitor = AutoscalerRuleEvaluator.getInstance().getMonitor(e.getClusterId());
+ ClusterContext clusCtx = monitor.getClusterCtxt();
+ String memberId = e.getMemberId();
+ String partitionId = e.getPartitionId();
+ clusCtx.addMemberpartition(memberId, partitionId);
+ PartitionContext partCtxt = monitor.getPartitionCtxt(partitionId);
+ partCtxt.incrementCurrentMemberCount(1);
+ partCtxt.removePendingMember(memberId);
+
+ }
+ finally{
+ TopologyManager.releaseReadLock();
+ }
+ }
+ });
+
+ processorChain.addEventListener(new ServiceRemovedEventListener() {
+ @Override
+ protected void onEvent(Event event) {
+// try {
+// TopologyManager.acquireReadLock();
+//
+// // Remove all clusters of given service from context
+// ServiceRemovedEvent serviceRemovedEvent = (ServiceRemovedEvent)event;
+// for(Service service : TopologyManager.getTopology().getServices()) {
+// for(Cluster cluster : service.getClusters()) {
+// removeClusterFromContext(cluster.getHostName());
+// }
+// }
+// }
+// finally {
+// TopologyManager.releaseReadLock();
+// }
+ }
+ });
+ return processorChain;
+ }
+
+ private class ClusterContextAdder implements Runnable {
+ private Cluster cluster;
+
+ public ClusterContextAdder(Cluster cluster) {
+ this.cluster = cluster;
+ }
+ public void run() {
+ ClusterContext ctxt;
+ try {
+ ctxt = AutoscalerUtil.getClusterContext(cluster);
+ } catch (PolicyValidationException e) {
+ String msg = "Cluster monitor creation failed for cluster: "+cluster.getClusterId();
+ log.error(msg, e);
+ throw new RuntimeException(msg, e);
+ }catch(PartitionValidationException e){
+ String msg = "Cluster monitor creation failed for cluster: "+cluster.getClusterId();
+ log.error(msg, e);
+ throw new RuntimeException(msg, e);
+ }
+ AutoscalerRuleEvaluator ruleCtxt = AutoscalerRuleEvaluator.getInstance();
+ ClusterMonitor monitor =
+ new ClusterMonitor(cluster.getClusterId(), ctxt,
+ ruleCtxt.getStatefulSession());
+ Thread th = new Thread(monitor);
+ th.start();
+ AutoscalerRuleEvaluator.getInstance().addMonitor(monitor);
+ if (log.isDebugEnabled()) {
+ log.debug(String.format("Cluster monitor has been added: [cluster] %s",
+ cluster.getClusterId()));
+ }
+ }
+ }
+
+// private void addClusterToContext(Cluster cluster) {
+// ClusterContext ctxt;
+// try {
+// ctxt = AutoscalerUtil.getClusterContext(cluster);
+// } catch (PolicyValidationException e) {
+// String msg = "Cluster monitor creation failed for cluster: "+cluster.getClusterId();
+// log.error(msg, e);
+// throw new RuntimeException(msg, e);
+// }
+// AutoscalerRuleEvaluator ruleCtxt = AutoscalerRuleEvaluator.getInstance();
+// ClusterMonitor monitor =
+// new ClusterMonitor(cluster.getClusterId(), ctxt,
+// ruleCtxt.getStatefulSession());
+// Thread th = new Thread(monitor);
+// th.start();
+// AutoscalerRuleEvaluator.getInstance().addMonitor(monitor);
+// if (log.isDebugEnabled()) {
+// log.debug(String.format("Cluster monitor has been added: [cluster] %s",
+// cluster.getClusterId()));
+// }
+// }
+
+ private void removeClusterFromContext(String clusterId) {
+ ClusterMonitor monitor = AutoscalerRuleEvaluator.getInstance().removeMonitor(clusterId);
+// monitor.unsubscribe();
+ monitor.destroy();
+ if(log.isDebugEnabled()) {
+ log.debug(String.format("Cluster monitor has been removed: [cluster] %s ", clusterId));
+ }
+ }
+
+ private Cluster findCluster(String clusterId) {
+ if(clusterId == null) {
+ return null;
+ }
+
+ Collection<Service> services = TopologyManager.getTopology().getServices();
+ for (Service service : services) {
+ for (Cluster cluster : service.getClusters()) {
+ if (clusterId.equals(cluster.getClusterId())) {
+ return cluster;
+ }
+ }
+ }
+ return null;
+ }
+
+ /**
+ * Terminate load balancer topology receiver thread.
+ */
+ public void terminate() {
+ topologyReceiver.terminate();
+ terminated = true;
+ }
+}
http://git-wip-us.apache.org/repos/asf/incubator-stratos/blob/7b861530/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/topology/processors/AutoscalerTopologyReceiver.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/topology/processors/AutoscalerTopologyReceiver.java b/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/topology/processors/AutoscalerTopologyReceiver.java
deleted file mode 100644
index 686cfc5..0000000
--- a/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/topology/processors/AutoscalerTopologyReceiver.java
+++ /dev/null
@@ -1,307 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-package org.apache.stratos.autoscaler.topology.processors;
-
-import java.util.Collection;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.apache.stratos.autoscaler.ClusterContext;
-import org.apache.stratos.autoscaler.ClusterMonitor;
-import org.apache.stratos.autoscaler.PartitionContext;
-import org.apache.stratos.autoscaler.exception.PartitionValidationException;
-import org.apache.stratos.autoscaler.exception.PolicyValidationException;
-import org.apache.stratos.autoscaler.rule.AutoscalerRuleEvaluator;
-import org.apache.stratos.autoscaler.util.AutoscalerUtil;
-import org.apache.stratos.messaging.domain.topology.Cluster;
-import org.apache.stratos.messaging.domain.topology.Service;
-import org.apache.stratos.messaging.event.Event;
-import org.apache.stratos.messaging.event.topology.ClusterCreatedEvent;
-import org.apache.stratos.messaging.event.topology.ClusterRemovedEvent;
-import org.apache.stratos.messaging.event.topology.MemberActivatedEvent;
-import org.apache.stratos.messaging.event.topology.MemberTerminatedEvent;
-import org.apache.stratos.messaging.listener.topology.ClusterCreatedEventListener;
-import org.apache.stratos.messaging.listener.topology.ClusterRemovedEventListener;
-import org.apache.stratos.messaging.listener.topology.CompleteTopologyEventListener;
-import org.apache.stratos.messaging.listener.topology.MemberActivatedEventListener;
-import org.apache.stratos.messaging.listener.topology.MemberStartedEventListener;
-import org.apache.stratos.messaging.listener.topology.MemberTerminatedEventListener;
-import org.apache.stratos.messaging.listener.topology.ServiceRemovedEventListener;
-import org.apache.stratos.messaging.message.processor.topology.TopologyMessageProcessorChain;
-import org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator;
-import org.apache.stratos.messaging.message.receiver.topology.TopologyManager;
-
-/**
- * Load balancer topology receiver.
- */
-public class AutoscalerTopologyReceiver implements Runnable {
-
- private static final Log log = LogFactory.getLog(AutoscalerTopologyReceiver.class);
-
- private TopologyReceiver topologyReceiver;
- private boolean terminated;
-
- public AutoscalerTopologyReceiver() {
- this.topologyReceiver = new TopologyReceiver(createMessageDelegator());
- }
-
- @Override
- public void run() {
- //FIXME this activated before autoscaler deployer actovated.
- try {
- Thread.sleep(30000);
- } catch (InterruptedException ignore) {
- }
- Thread thread = new Thread(topologyReceiver);
- thread.start();
- if(log.isInfoEnabled()) {
- log.info("Load balancer topology receiver thread started");
- }
-
- // Keep the thread live until terminated
- while (!terminated);
- if(log.isInfoEnabled()) {
- log.info("Load balancer topology receiver thread terminated");
- }
- }
-
- private TopologyEventMessageDelegator createMessageDelegator() {
- TopologyMessageProcessorChain processorChain = createEventProcessorChain();
- processorChain.addEventListener(new CompleteTopologyEventListener() {
- @Override
- protected void onEvent(Event event) {
- try {
- TopologyManager.acquireReadLock();
- for(Service service : TopologyManager.getTopology().getServices()) {
- for(Cluster cluster : service.getClusters()) {
- Thread th = new Thread(new ClusterContextAdder(cluster));
- th.start();
- }
- }
- }
- finally {
- TopologyManager.releaseReadLock();
- }
- }
-
- });
- return new TopologyEventMessageDelegator(processorChain);
- }
-
- private TopologyMessageProcessorChain createEventProcessorChain() {
- // Listen to topology events that affect clusters
- TopologyMessageProcessorChain processorChain = new TopologyMessageProcessorChain();
- processorChain.addEventListener(new ClusterCreatedEventListener() {
- @Override
- protected void onEvent(Event event) {
- try {
- ClusterCreatedEvent e = (ClusterCreatedEvent) event;
- TopologyManager.acquireReadLock();
- Service service = TopologyManager.getTopology().getService(e.getServiceName());
- Cluster cluster = service.getCluster(e.getClusterId());
- Thread th = new Thread(new ClusterContextAdder(cluster));
- th.start();
- }
- finally {
- TopologyManager.releaseReadLock();
- }
- }
-
- });
-
- processorChain.addEventListener(new ClusterRemovedEventListener() {
- @Override
- protected void onEvent(Event event) {
- try {
- ClusterRemovedEvent e = (ClusterRemovedEvent) event;
- TopologyManager.acquireReadLock();
-
- removeClusterFromContext(e.getClusterId());
- }
- finally {
- TopologyManager.releaseReadLock();
- }
- }
-
- });
-
- processorChain.addEventListener(new MemberStartedEventListener() {
- @Override
- protected void onEvent(Event event) {
-
- }
-
- });
-
- processorChain.addEventListener(new MemberTerminatedEventListener() {
- @Override
- protected void onEvent(Event event) {
-
- try {
- TopologyManager.acquireReadLock();
- MemberTerminatedEvent e = (MemberTerminatedEvent) event;
- ClusterMonitor monitor = AutoscalerRuleEvaluator.getInstance().getMonitor(e.getClusterId());
- ClusterContext clusCtx = monitor.getClusterCtxt();
- String partitionId = clusCtx.removeMemberPartition(e.getMemberId());
- if (partitionId != null) {
- PartitionContext partCtxt = monitor.getPartitionCtxt(partitionId);
- partCtxt.decrementCurrentMemberCount(1);
- }
- } finally {
- TopologyManager.releaseReadLock();
- }
- }
-
- });
-
- processorChain.addEventListener(new MemberActivatedEventListener() {
- @Override
- protected void onEvent(Event event) {
-
- try {
- TopologyManager.acquireReadLock();
-
- MemberActivatedEvent e = (MemberActivatedEvent)event;
- ClusterMonitor monitor = AutoscalerRuleEvaluator.getInstance().getMonitor(e.getClusterId());
- ClusterContext clusCtx = monitor.getClusterCtxt();
- String memberId = e.getMemberId();
- String partitionId = e.getPartitionId();
- clusCtx.addMemberpartition(memberId, partitionId);
- PartitionContext partCtxt = monitor.getPartitionCtxt(partitionId);
- partCtxt.incrementCurrentMemberCount(1);
- partCtxt.removePendingMember(memberId);
-
- }
- finally{
- TopologyManager.releaseReadLock();
- }
- }
- });
-
- processorChain.addEventListener(new ServiceRemovedEventListener() {
- @Override
- protected void onEvent(Event event) {
-// try {
-// TopologyManager.acquireReadLock();
-//
-// // Remove all clusters of given service from context
-// ServiceRemovedEvent serviceRemovedEvent = (ServiceRemovedEvent)event;
-// for(Service service : TopologyManager.getTopology().getServices()) {
-// for(Cluster cluster : service.getClusters()) {
-// removeClusterFromContext(cluster.getHostName());
-// }
-// }
-// }
-// finally {
-// TopologyManager.releaseReadLock();
-// }
- }
- });
- return processorChain;
- }
-
- private class ClusterContextAdder implements Runnable {
- private Cluster cluster;
-
- public ClusterContextAdder(Cluster cluster) {
- this.cluster = cluster;
- }
- public void run() {
- ClusterContext ctxt;
- try {
- ctxt = AutoscalerUtil.getClusterContext(cluster);
- } catch (PolicyValidationException e) {
- String msg = "Cluster monitor creation failed for cluster: "+cluster.getClusterId();
- log.error(msg, e);
- throw new RuntimeException(msg, e);
- }catch(PartitionValidationException e){
- String msg = "Cluster monitor creation failed for cluster: "+cluster.getClusterId();
- log.error(msg, e);
- throw new RuntimeException(msg, e);
- }
- AutoscalerRuleEvaluator ruleCtxt = AutoscalerRuleEvaluator.getInstance();
- ClusterMonitor monitor =
- new ClusterMonitor(cluster.getClusterId(), ctxt,
- ruleCtxt.getStatefulSession());
- Thread th = new Thread(monitor);
- th.start();
- AutoscalerRuleEvaluator.getInstance().addMonitor(monitor);
- if (log.isDebugEnabled()) {
- log.debug(String.format("Cluster monitor has been added: [cluster] %s",
- cluster.getClusterId()));
- }
- }
- }
-
-// private void addClusterToContext(Cluster cluster) {
-// ClusterContext ctxt;
-// try {
-// ctxt = AutoscalerUtil.getClusterContext(cluster);
-// } catch (PolicyValidationException e) {
-// String msg = "Cluster monitor creation failed for cluster: "+cluster.getClusterId();
-// log.error(msg, e);
-// throw new RuntimeException(msg, e);
-// }
-// AutoscalerRuleEvaluator ruleCtxt = AutoscalerRuleEvaluator.getInstance();
-// ClusterMonitor monitor =
-// new ClusterMonitor(cluster.getClusterId(), ctxt,
-// ruleCtxt.getStatefulSession());
-// Thread th = new Thread(monitor);
-// th.start();
-// AutoscalerRuleEvaluator.getInstance().addMonitor(monitor);
-// if (log.isDebugEnabled()) {
-// log.debug(String.format("Cluster monitor has been added: [cluster] %s",
-// cluster.getClusterId()));
-// }
-// }
-
- private void removeClusterFromContext(String clusterId) {
- ClusterMonitor monitor = AutoscalerRuleEvaluator.getInstance().removeMonitor(clusterId);
-// monitor.unsubscribe();
- monitor.destroy();
- if(log.isDebugEnabled()) {
- log.debug(String.format("Cluster monitor has been removed: [cluster] %s ", clusterId));
- }
- }
-
- private Cluster findCluster(String clusterId) {
- if(clusterId == null) {
- return null;
- }
-
- Collection<Service> services = TopologyManager.getTopology().getServices();
- for (Service service : services) {
- for (Cluster cluster : service.getClusters()) {
- if (clusterId.equals(cluster.getClusterId())) {
- return cluster;
- }
- }
- }
- return null;
- }
-
- /**
- * Terminate load balancer topology receiver thread.
- */
- public void terminate() {
- topologyReceiver.terminate();
- terminated = true;
- }
-}
http://git-wip-us.apache.org/repos/asf/incubator-stratos/blob/7b861530/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/topology/processors/TopologyReceiver.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/topology/processors/TopologyReceiver.java b/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/topology/processors/TopologyReceiver.java
deleted file mode 100644
index 4809208..0000000
--- a/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/topology/processors/TopologyReceiver.java
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-package org.apache.stratos.autoscaler.topology.processors;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.apache.stratos.messaging.broker.subscribe.TopicSubscriber;
-import org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator;
-import org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageReceiver;
-import org.apache.stratos.messaging.util.Constants;
-
-/**
- * A thread for receiving topology information from message broker.
- */
-public class TopologyReceiver implements Runnable {
- private static final Log log = LogFactory.getLog(TopologyReceiver.class);
- private TopologyEventMessageDelegator messageDelegator;
- private TopicSubscriber topicSubscriber;
- private boolean terminated;
-
- public TopologyReceiver() {
- this.messageDelegator = new TopologyEventMessageDelegator();
- }
-
- public TopologyReceiver(TopologyEventMessageDelegator messageDelegator) {
- this.messageDelegator = messageDelegator;
- }
-
- @Override
- public void run() {
- try {
- // Start topic subscriber thread
- topicSubscriber = new TopicSubscriber(Constants.TOPOLOGY_TOPIC);
- topicSubscriber.setMessageListener(new TopologyEventMessageReceiver());
- Thread subscriberThread = new Thread(topicSubscriber);
- subscriberThread.start();
- if (log.isDebugEnabled()) {
- log.debug("Topology event message receiver thread started");
- }
-
- // Start topology event message delegator thread
- Thread receiverThread = new Thread(messageDelegator);
- receiverThread.start();
- if (log.isDebugEnabled()) {
- log.debug("Topology event message delegator thread started");
- }
-
- // Keep the thread live until terminated
- while (!terminated);
- } catch (Exception e) {
- if (log.isErrorEnabled()) {
- log.error("Topology receiver failed", e);
- }
- }
- }
-
- public void terminate() {
- topicSubscriber.terminate();
- messageDelegator.terminate();
- terminated = true;
- }
-}
http://git-wip-us.apache.org/repos/asf/incubator-stratos/blob/7b861530/components/org.apache.stratos.load.balancer.common/src/main/java/org/apache/stratos/load/balancer/common/topology/TopologyReceiver.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.load.balancer.common/src/main/java/org/apache/stratos/load/balancer/common/topology/TopologyReceiver.java b/components/org.apache.stratos.load.balancer.common/src/main/java/org/apache/stratos/load/balancer/common/topology/TopologyReceiver.java
deleted file mode 100644
index 4e91f2f..0000000
--- a/components/org.apache.stratos.load.balancer.common/src/main/java/org/apache/stratos/load/balancer/common/topology/TopologyReceiver.java
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-package org.apache.stratos.load.balancer.common.topology;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.apache.stratos.messaging.broker.subscribe.TopicSubscriber;
-import org.apache.stratos.messaging.message.processor.MessageProcessorChain;
-import org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator;
-import org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageReceiver;
-import org.apache.stratos.messaging.util.Constants;
-
-/**
- * A thread for receiving topology information from message broker.
- */
-public class TopologyReceiver implements Runnable {
- private static final Log log = LogFactory.getLog(TopologyReceiver.class);
- private TopologyEventMessageDelegator messageDelegator;
- private TopicSubscriber topicSubscriber;
- private boolean terminated;
-
- public TopologyReceiver() {
- this.messageDelegator = new TopologyEventMessageDelegator();
- }
-
- public TopologyReceiver(TopologyEventMessageDelegator messageDelegator) {
- this.messageDelegator = messageDelegator;
- }
-
- @Override
- public void run() {
- try {
- // Start topic subscriber thread
- topicSubscriber = new TopicSubscriber(Constants.TOPOLOGY_TOPIC);
- topicSubscriber.setMessageListener(new TopologyEventMessageReceiver());
- Thread subscriberThread = new Thread(topicSubscriber);
- subscriberThread.start();
- if (log.isDebugEnabled()) {
- log.debug("Topology event message receiver thread started");
- }
-
- // Start topology event message delegator thread
- Thread receiverThread = new Thread(messageDelegator);
- receiverThread.start();
- if (log.isDebugEnabled()) {
- log.debug("Topology event message delegator thread started");
- }
-
- // Keep the thread live until terminated
- while (!terminated);
- } catch (Exception e) {
- if (log.isErrorEnabled()) {
- log.error("Topology receiver failed", e);
- }
- }
- }
-
- public void terminate() {
- topicSubscriber.terminate();
- messageDelegator.terminate();
- terminated = true;
- }
-}
http://git-wip-us.apache.org/repos/asf/incubator-stratos/blob/7b861530/components/org.apache.stratos.load.balancer.extension.api/src/main/java/org/apache/stratos/load/balancer/extension/api/LoadBalancerExtension.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.load.balancer.extension.api/src/main/java/org/apache/stratos/load/balancer/extension/api/LoadBalancerExtension.java b/components/org.apache.stratos.load.balancer.extension.api/src/main/java/org/apache/stratos/load/balancer/extension/api/LoadBalancerExtension.java
index f9b607a..0e602c7 100644
--- a/components/org.apache.stratos.load.balancer.extension.api/src/main/java/org/apache/stratos/load/balancer/extension/api/LoadBalancerExtension.java
+++ b/components/org.apache.stratos.load.balancer.extension.api/src/main/java/org/apache/stratos/load/balancer/extension/api/LoadBalancerExtension.java
@@ -21,12 +21,12 @@ package org.apache.stratos.load.balancer.extension.api;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
-import org.apache.stratos.load.balancer.common.topology.TopologyReceiver;
import org.apache.stratos.messaging.event.Event;
import org.apache.stratos.messaging.listener.topology.*;
import org.apache.stratos.messaging.message.processor.topology.TopologyMessageProcessorChain;
import org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator;
import org.apache.stratos.messaging.message.receiver.topology.TopologyManager;
+import org.apache.stratos.messaging.message.receiver.topology.TopologyReceiver;
/**
* Load balancer extension thread for executing load balancer life-cycle according to the topology updates
@@ -39,7 +39,7 @@ public class LoadBalancerExtension implements Runnable {
private LoadBalancerStatsReader statsReader;
private boolean loadBalancerStarted;
private TopologyReceiver topologyReceiver;
- private LoadBalancerInFlightRequestCountNotifier statsNotifier;
+ private LoadBalancerInFlightRequestCountNotifier inFlightRequestCountNotifier;
private boolean terminated;
public LoadBalancerExtension(LoadBalancer loadBalancer, LoadBalancerStatsReader statsReader) {
@@ -60,8 +60,8 @@ public class LoadBalancerExtension implements Runnable {
topologyReceiverThread.start();
// Start stats notifier thread
- statsNotifier = new LoadBalancerInFlightRequestCountNotifier(statsReader);
- Thread statsNotifierThread = new Thread(statsNotifier);
+ inFlightRequestCountNotifier = new LoadBalancerInFlightRequestCountNotifier(statsReader);
+ Thread statsNotifierThread = new Thread(inFlightRequestCountNotifier);
statsNotifierThread.start();
// Keep the thread live until terminated
@@ -146,7 +146,7 @@ public class LoadBalancerExtension implements Runnable {
public void terminate() {
topologyReceiver.terminate();
- statsNotifier.terminate();
+ inFlightRequestCountNotifier.terminate();
terminated = true;
}
}
http://git-wip-us.apache.org/repos/asf/incubator-stratos/blob/7b861530/components/org.apache.stratos.load.balancer/src/main/java/org/apache/stratos/load/balancer/LoadBalancerTopologyReceiver.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.load.balancer/src/main/java/org/apache/stratos/load/balancer/LoadBalancerTopologyReceiver.java b/components/org.apache.stratos.load.balancer/src/main/java/org/apache/stratos/load/balancer/LoadBalancerTopologyReceiver.java
index 2ecc5a2..ee43eae 100644
--- a/components/org.apache.stratos.load.balancer/src/main/java/org/apache/stratos/load/balancer/LoadBalancerTopologyReceiver.java
+++ b/components/org.apache.stratos.load.balancer/src/main/java/org/apache/stratos/load/balancer/LoadBalancerTopologyReceiver.java
@@ -21,7 +21,6 @@ package org.apache.stratos.load.balancer;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
-import org.apache.stratos.load.balancer.common.topology.TopologyReceiver;
import org.apache.stratos.messaging.domain.topology.Cluster;
import org.apache.stratos.messaging.domain.topology.Member;
import org.apache.stratos.messaging.domain.topology.Service;
@@ -34,6 +33,7 @@ import org.apache.stratos.messaging.event.topology.*;
import org.apache.stratos.messaging.message.processor.topology.TopologyMessageProcessorChain;
import org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator;
import org.apache.stratos.messaging.message.receiver.topology.TopologyManager;
+import org.apache.stratos.messaging.message.receiver.topology.TopologyReceiver;
import java.util.Collection;
http://git-wip-us.apache.org/repos/asf/incubator-stratos/blob/7b861530/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/tenant/TenantEventMessageListener.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/tenant/TenantEventMessageListener.java b/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/tenant/TenantEventMessageListener.java
new file mode 100644
index 0000000..f90c6cd
--- /dev/null
+++ b/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/tenant/TenantEventMessageListener.java
@@ -0,0 +1,55 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.stratos.messaging.message.receiver.tenant;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageQueue;
+
+import javax.jms.JMSException;
+import javax.jms.Message;
+import javax.jms.MessageListener;
+import javax.jms.TextMessage;
+
+/**
+ * Implements functionality for receiving text based event messages from the tenant
+ * message broker topic and add them to the event queue.
+ */
+public class TenantEventMessageListener implements MessageListener {
+
+ private static final Log log = LogFactory.getLog(TenantEventMessageListener.class);
+
+ @Override
+ public void onMessage(Message message) {
+ if (message instanceof TextMessage) {
+ TextMessage receivedMessage = (TextMessage) message;
+ try {
+ if (log.isDebugEnabled()) {
+ log.debug(String.format("Tenant message received: %s", ((TextMessage) message).getText()));
+ }
+ // Add received message to the queue
+ TopologyEventMessageQueue.getInstance().add(receivedMessage);
+
+ } catch (JMSException e) {
+ log.error(e.getMessage(), e);
+ }
+ }
+ }
+}
http://git-wip-us.apache.org/repos/asf/incubator-stratos/blob/7b861530/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/tenant/TenantEventMessageReceiver.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/tenant/TenantEventMessageReceiver.java b/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/tenant/TenantEventMessageReceiver.java
deleted file mode 100644
index 89424a2..0000000
--- a/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/tenant/TenantEventMessageReceiver.java
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-package org.apache.stratos.messaging.message.receiver.tenant;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageQueue;
-
-import javax.jms.JMSException;
-import javax.jms.Message;
-import javax.jms.MessageListener;
-import javax.jms.TextMessage;
-
-/**
- * Implements functionality for receiving text based event messages from the tenant
- * message broker topic and add them to the event queue.
- */
-public class TenantEventMessageReceiver implements MessageListener {
-
- private static final Log log = LogFactory.getLog(TenantEventMessageReceiver.class);
-
- @Override
- public void onMessage(Message message) {
- if (message instanceof TextMessage) {
- TextMessage receivedMessage = (TextMessage) message;
- try {
- if (log.isDebugEnabled()) {
- log.debug(String.format("Tenant message received: %s", ((TextMessage) message).getText()));
- }
- // Add received message to the queue
- TopologyEventMessageQueue.getInstance().add(receivedMessage);
-
- } catch (JMSException e) {
- log.error(e.getMessage(), e);
- }
- }
- }
-}
http://git-wip-us.apache.org/repos/asf/incubator-stratos/blob/7b861530/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/tenant/TenantReceiver.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/tenant/TenantReceiver.java b/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/tenant/TenantReceiver.java
new file mode 100644
index 0000000..7cebcb7
--- /dev/null
+++ b/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/tenant/TenantReceiver.java
@@ -0,0 +1,78 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.stratos.messaging.message.receiver.tenant;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.stratos.messaging.broker.subscribe.TopicSubscriber;
+import org.apache.stratos.messaging.util.Constants;
+
+/**
+ * A thread for receiving tenant information from message broker and
+ * build tenant information in tenant manager.
+ */
+public class TenantReceiver implements Runnable {
+ private static final Log log = LogFactory.getLog(TenantReceiver.class);
+ private TenantEventMessageDelegator messageDelegator;
+ private TopicSubscriber topicSubscriber;
+ private boolean terminated;
+
+ public TenantReceiver() {
+ this.messageDelegator = new TenantEventMessageDelegator();
+ }
+
+ public TenantReceiver(TenantEventMessageDelegator messageDelegator) {
+ this.messageDelegator = messageDelegator;
+ }
+
+ @Override
+ public void run() {
+ try {
+ // Start topic subscriber thread
+ topicSubscriber = new TopicSubscriber(Constants.TENANT_TOPIC);
+ topicSubscriber.setMessageListener(new TenantEventMessageListener());
+ Thread subscriberThread = new Thread(topicSubscriber);
+ subscriberThread.start();
+ if (log.isDebugEnabled()) {
+ log.debug("Tenant event message receiver thread started");
+ }
+
+ // Start tenant event message delegator thread
+ Thread receiverThread = new Thread(messageDelegator);
+ receiverThread.start();
+ if (log.isDebugEnabled()) {
+ log.debug("Tenant event message delegator thread started");
+ }
+
+ // Keep the thread live until terminated
+ while (!terminated);
+ } catch (Exception e) {
+ if (log.isErrorEnabled()) {
+ log.error("Tenant receiver failed", e);
+ }
+ }
+ }
+
+ public void terminate() {
+ topicSubscriber.terminate();
+ messageDelegator.terminate();
+ terminated = true;
+ }
+}
http://git-wip-us.apache.org/repos/asf/incubator-stratos/blob/7b861530/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/topology/TopologyEventMessageListener.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/topology/TopologyEventMessageListener.java b/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/topology/TopologyEventMessageListener.java
new file mode 100644
index 0000000..03afe13
--- /dev/null
+++ b/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/topology/TopologyEventMessageListener.java
@@ -0,0 +1,53 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.stratos.messaging.message.receiver.topology;
+
+import javax.jms.JMSException;
+import javax.jms.Message;
+import javax.jms.MessageListener;
+import javax.jms.TextMessage;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+/**
+ * Implements functionality for receiving text based event messages from the topology
+ * message broker topic and add them to the event queue.
+ */
+public class TopologyEventMessageListener implements MessageListener {
+
+ private static final Log log = LogFactory.getLog(TopologyEventMessageListener.class);
+
+ @Override
+ public void onMessage(Message message) {
+ if (message instanceof TextMessage) {
+ TextMessage receivedMessage = (TextMessage) message;
+ try {
+ if (log.isDebugEnabled()) {
+ log.debug(String.format("Topology message received: %s", ((TextMessage) message).getText()));
+ }
+ // Add received message to the queue
+ TopologyEventMessageQueue.getInstance().add(receivedMessage);
+
+ } catch (JMSException e) {
+ log.error(e.getMessage(), e);
+ }
+ }
+ }
+}
http://git-wip-us.apache.org/repos/asf/incubator-stratos/blob/7b861530/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/topology/TopologyEventMessageReceiver.java
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diff --git a/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/topology/TopologyEventMessageReceiver.java b/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/topology/TopologyEventMessageReceiver.java
deleted file mode 100644
index 947fc0c..0000000
--- a/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/topology/TopologyEventMessageReceiver.java
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-package org.apache.stratos.messaging.message.receiver.topology;
-
-import javax.jms.JMSException;
-import javax.jms.Message;
-import javax.jms.MessageListener;
-import javax.jms.TextMessage;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-
-/**
- * Implements functionality for receiving text based event messages from the topology
- * message broker topic and add them to the event queue.
- */
-public class TopologyEventMessageReceiver implements MessageListener {
-
- private static final Log log = LogFactory.getLog(TopologyEventMessageReceiver.class);
-
- @Override
- public void onMessage(Message message) {
- if (message instanceof TextMessage) {
- TextMessage receivedMessage = (TextMessage) message;
- try {
- if (log.isDebugEnabled()) {
- log.debug(String.format("Topology message received: %s", ((TextMessage) message).getText()));
- }
- // Add received message to the queue
- TopologyEventMessageQueue.getInstance().add(receivedMessage);
-
- } catch (JMSException e) {
- log.error(e.getMessage(), e);
- }
- }
- }
-}
http://git-wip-us.apache.org/repos/asf/incubator-stratos/blob/7b861530/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/topology/TopologyReceiver.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/topology/TopologyReceiver.java b/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/topology/TopologyReceiver.java
new file mode 100644
index 0000000..8757f65
--- /dev/null
+++ b/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/message/receiver/topology/TopologyReceiver.java
@@ -0,0 +1,78 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.stratos.messaging.message.receiver.topology;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.stratos.messaging.broker.subscribe.TopicSubscriber;
+import org.apache.stratos.messaging.util.Constants;
+
+/**
+ * A thread for receiving topology information from message broker and
+ * build topology in topology manager.
+ */
+public class TopologyReceiver implements Runnable {
+ private static final Log log = LogFactory.getLog(TopologyReceiver.class);
+ private TopologyEventMessageDelegator messageDelegator;
+ private TopicSubscriber topicSubscriber;
+ private boolean terminated;
+
+ public TopologyReceiver() {
+ this.messageDelegator = new TopologyEventMessageDelegator();
+ }
+
+ public TopologyReceiver(TopologyEventMessageDelegator messageDelegator) {
+ this.messageDelegator = messageDelegator;
+ }
+
+ @Override
+ public void run() {
+ try {
+ // Start topic subscriber thread
+ topicSubscriber = new TopicSubscriber(Constants.TOPOLOGY_TOPIC);
+ topicSubscriber.setMessageListener(new TopologyEventMessageListener());
+ Thread subscriberThread = new Thread(topicSubscriber);
+ subscriberThread.start();
+ if (log.isDebugEnabled()) {
+ log.debug("Topology event message receiver thread started");
+ }
+
+ // Start topology event message delegator thread
+ Thread receiverThread = new Thread(messageDelegator);
+ receiverThread.start();
+ if (log.isDebugEnabled()) {
+ log.debug("Topology event message delegator thread started");
+ }
+
+ // Keep the thread live until terminated
+ while (!terminated);
+ } catch (Exception e) {
+ if (log.isErrorEnabled()) {
+ log.error("Topology receiver failed", e);
+ }
+ }
+ }
+
+ public void terminate() {
+ topicSubscriber.terminate();
+ messageDelegator.terminate();
+ terminated = true;
+ }
+}
http://git-wip-us.apache.org/repos/asf/incubator-stratos/blob/7b861530/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/util/Constants.java
----------------------------------------------------------------------
diff --git a/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/util/Constants.java b/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/util/Constants.java
index d7341ad..a92413d 100644
--- a/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/util/Constants.java
+++ b/components/org.apache.stratos.messaging/src/main/java/org/apache/stratos/messaging/util/Constants.java
@@ -24,6 +24,7 @@ public class Constants {
public static final String HEALTH_STAT_TOPIC = "summarized-health-stats";
public static final String INSTANCE_STATUS_TOPIC = "instance-status";
public static final String ARTIFACT_SYNCHRONIZATION_TOPIC = "artifact-synchronization";
+ public static final String TENANT_TOPIC = "tenant";
public static final String TENANT_RANGE_DELIMITER = "-";
public static final String EVENT_CLASS_NAME = "event-class-name";