Github user michaelandrepearce commented on a diff in the pull request:
https://github.com/apache/activemq-artemis/pull/1853#discussion_r166179104
--- Diff:
artemis-server/src/main/java/org/apache/activemq/artemis/core/server/impl/QueuePendingMessageMetrics.java
---
@@ -0,0 +1,108 @@
+/*
+ * 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.activemq.artemis.core.server.impl;
+
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicLong;
+
+import com.google.common.base.Preconditions;
+
+import org.apache.activemq.artemis.core.server.ActiveMQServerLogger;
+import org.apache.activemq.artemis.core.server.MessageReference;
+import org.apache.activemq.artemis.core.server.Queue;
+
+public class QueuePendingMessageMetrics {
+
+ private final AtomicInteger messageCount = new AtomicInteger(0);
--- End diff --
Could all these atomics be primitives with static atomic updates, just to
reduce object size.
---
