/*
* Copyright (c) 2008-2013, Hazelcast, Inc. All Rights Reserved.
*
* Licensed 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 com.hazelcast.jmx;
import com.hazelcast.config.Config;
import com.hazelcast.config.QueueConfig;
import com.hazelcast.core.IQueue;
import com.hazelcast.core.ItemEvent;
import com.hazelcast.core.ItemListener;
import java.util.concurrent.atomic.AtomicLong;
@ManagedDescription("IQueue")
public class QueueMBean extends HazelcastMBean<IQueue> {
private final AtomicLong totalAddedItemCount = new AtomicLong();
private final AtomicLong totalRemovedItemCount = new AtomicLong();
private final String registrationId;
protected QueueMBean(IQueue managedObject, ManagementService service) {
super(managedObject, service);
objectName = service.createObjectName("IQueue", managedObject.getName());
//todo: using the event system to register number of adds/remove is an very expensive price to pay.
ItemListener itemListener = new ItemListener() {
@Override
public void itemAdded(ItemEvent item) {
totalAddedItemCount.incrementAndGet();
}
@Override
public void itemRemoved(ItemEvent item) {
totalRemovedItemCount.incrementAndGet();
}
};
registrationId = managedObject.addItemListener(itemListener, false);
}
@ManagedAnnotation("localOwnedItemCount")
@ManagedDescription("the number of owned items in this member.")
public long getLocalOwnedItemCount(){
return managedObject.getLocalQueueStats().getOwnedItemCount();
}
@ManagedAnnotation("localBackupItemCount")
@ManagedDescription("the number of backup items in this member.")
public long getLocalBackupItemCount(){
return managedObject.getLocalQueueStats().getBackupItemCount();
}
@ManagedAnnotation("localMinAge")
@ManagedDescription("the min age of the items in this member.")
public long getLocalMinAge(){
return managedObject.getLocalQueueStats().getMinAge();
}
@ManagedAnnotation("localMaxAge")
@ManagedDescription("the max age of the items in this member.")
public long getLocalMaxAge(){
return managedObject.getLocalQueueStats().getMaxAge();
}
@ManagedAnnotation("localAvgAge")
@ManagedDescription("the average age of the items in this member.")
public long getLocalAvgAge(){
return managedObject.getLocalQueueStats().getAvgAge();
}
@ManagedAnnotation("localOfferOperationCount")
@ManagedDescription("the number of offer/put/add operations in this member")
public long getLocalOfferOperationCount(){
return managedObject.getLocalQueueStats().getOfferOperationCount();
}
@ManagedAnnotation("localRejectedOfferOperationCount")
@ManagedDescription("the number of rejected offers in this member")
public long getLocalRejectedOfferOperationCount(){
return managedObject.getLocalQueueStats().getRejectedOfferOperationCount();
}
@ManagedAnnotation("localPollOperationCount")
@ManagedDescription("the number of poll/take/remove operations in this member")
public long getLocalPollOperationCount(){
return managedObject.getLocalQueueStats().getPollOperationCount();
}
@ManagedAnnotation("localEmptyPollOperationCount")
@ManagedDescription("number of null returning poll operations in this member")
public long getLocalEmptyPollOperationCount(){
return managedObject.getLocalQueueStats().getEmptyPollOperationCount();
}
@ManagedAnnotation("localOtherOperationsCount")
@ManagedDescription("number of other operations in this member")
public long getLocalOtherOperationsCount(){
return managedObject.getLocalQueueStats().getOtherOperationsCount();
}
@ManagedAnnotation("localEventOperationCount")
@ManagedDescription("number of event operations in this member")
public long getLocalEventOperationCount(){
return managedObject.getLocalQueueStats().getEventOperationCount();
}
@ManagedAnnotation("name")
@ManagedDescription("Name of the DistributedObject")
public String getName() {
return managedObject.getName();
}
@ManagedAnnotation("partitionKey")
@ManagedDescription("the partitionKey")
public String getPartitionKey() {
return managedObject.getPartitionKey();
}
@ManagedAnnotation("config")
@ManagedDescription("QueueConfig")
public String getConfig(){
String managedObjectName = managedObject.getName();
Config config = service.instance.getConfig();
QueueConfig queueConfig = config.findQueueConfig(managedObjectName);
return queueConfig.toString();
}
@ManagedAnnotation(value = "clear", operation = true)
@ManagedDescription("Clear Queue")
public void clear() {
managedObject.clear();
}
@ManagedAnnotation("totalAddedItemCount")
public long getTotalAddedItemCount() {
return totalAddedItemCount.get();
}
@ManagedAnnotation("totalRemovedItemCount")
public long getTotalRemovedItemCount() {
return totalRemovedItemCount.get();
}
public void preDeregister() throws Exception {
super.preDeregister();
try {
managedObject.removeItemListener(registrationId);
} catch (Exception ignored) {
}
}
}