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https://issues.apache.org/jira/browse/ARTEMIS-3720?focusedWorklogId=743729&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-743729
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ASF GitHub Bot logged work on ARTEMIS-3720:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 18/Mar/22 13:06
Start Date: 18/Mar/22 13:06
Worklog Time Spent: 10m
Work Description: clebertsuconic commented on a change in pull request
#3983:
URL: https://github.com/apache/activemq-artemis/pull/3983#discussion_r829980293
##########
File path:
artemis-commons/src/main/java/org/apache/activemq/artemis/utils/SizeAwareMetric.java
##########
@@ -0,0 +1,240 @@
+/**
+ * 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
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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.utils;
+
+import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;
+import java.util.concurrent.atomic.AtomicLongFieldUpdater;
+import java.util.function.IntConsumer;
+
+import org.jboss.logging.Logger;
+
+public class SizeAwareMetric {
+
+ private static final Logger logger =
Logger.getLogger(SizeAwareMetric.class);
+
+ private static final AtomicLongFieldUpdater<SizeAwareMetric>
elementsUpdater = AtomicLongFieldUpdater.newUpdater(SizeAwareMetric.class,
"elements");
+ private static final AtomicLongFieldUpdater<SizeAwareMetric> sizeUpdater =
AtomicLongFieldUpdater.newUpdater(SizeAwareMetric.class, "size");
+ private static final int FREE = 0, OVER_SIZE = 1, OVER_ELEMENTS = 2,
NOT_USED = -1;
+ private static final AtomicIntegerFieldUpdater<SizeAwareMetric> flagUpdater
= AtomicIntegerFieldUpdater.newUpdater(SizeAwareMetric.class, "flag");
+ private volatile long elements;
+ private volatile long size;
+ private volatile int flag = NOT_USED;
+ private long maxElements;
+ private long lowerMarkElements;
+ private long maxSize;
+ private long lowerMarkSize;
+ private boolean sizeEnabled = false;
+ private boolean elementsEnabled = false;
+ private SizeAwareMetric parentMetric;
+ private IntConsumer onSizeCallback;
+ private IntConsumer onSizeOnlyCallback;
+ private Runnable overCallback;
+ private Runnable underCallback;
+
+ public SizeAwareMetric(long maxSize, long lowerMarkSize, long maxElements,
long lowerMarkElements) {
+ if (lowerMarkSize > maxSize) {
+ throw new IllegalArgumentException("lowerMark must be <= maxSize");
+ }
+ if (lowerMarkElements > maxElements) {
+ throw new IllegalArgumentException("lowerMarkElements must be <=
maxElements");
+ }
+ this.maxElements = maxElements;
+ this.lowerMarkElements = lowerMarkElements;
+ this.maxSize = maxSize;
+ this.lowerMarkSize = lowerMarkSize;
+ this.sizeEnabled = maxSize >= 0;
+ this.elementsEnabled = maxElements >= 0;
+ }
+
+ public boolean isOver() {
+ return flag != FREE && flag != NOT_USED;
+ }
+
+ public boolean isOverSize() {
+ return flag == OVER_SIZE;
+ }
+
+ public boolean isOverElements() {
+ return flag == OVER_ELEMENTS;
+ }
+
+ public long getSize() {
+ return size;
+ }
+
+ public boolean isElementsEnabled() {
+ return elementsEnabled;
+ }
+
+ public SizeAwareMetric setElementsEnabled(boolean elementsEnabled) {
+ this.elementsEnabled = elementsEnabled;
+ return this;
+ }
+
+ public long getElements() {
+ return elements;
+ }
+
+ public boolean isSizeEnabled() {
+ return sizeEnabled;
+ }
+
+ public SizeAwareMetric setSizeEnabled(boolean sizeEnabled) {
+ this.sizeEnabled = sizeEnabled;
+ return this;
+ }
+
+ public void setOnSizeCallback(IntConsumer onSize) {
+ this.onSizeCallback = onSize;
+ }
+
+ public void setOnSizeOnlyCallback(IntConsumer onSize) {
+ this.onSizeOnlyCallback = onSize;
+ }
+
+ public void setOverCallback(Runnable over) {
+ this.overCallback = over;
+ }
+
+ public void setParentMetric(SizeAwareMetric parent) {
+ parentMetric = parent;
+ }
+
+ public void setUnderCallback(Runnable under) {
+ this.underCallback = under;
+ }
+
+ protected void over() {
+ if (overCallback != null) {
+ try {
+ overCallback.run();
+ } catch (Throwable e) {
+ logger.warn(e.getMessage(), e);
+ }
+ }
+ }
+
+ protected void under() {
+ if (underCallback != null) {
+ try {
+ underCallback.run();
+ } catch (Throwable e) {
+ logger.warn(e.getMessage(), e);
+ }
+ }
+ }
+
+ private boolean changeFlag(int expected, int newValue) {
+ return flagUpdater.compareAndSet(this, expected, newValue);
+ }
+
+ public long addSize(int delta) {
+ return addSize(delta, false);
+ }
+
+ public long addSizeOnly(int delta) {
+ return addSize(delta, true);
+ }
+
+ public long addSize(int delta, boolean sizeOnly) {
+
+ if (delta == 0) {
+ if (logger.isDebugEnabled()) {
+ logger.debug("SizeAwareMetric ignored with size 0", new
Exception("trace"));
+ }
+ return sizeUpdater.get(this);
+ }
+
+ flagUpdater.compareAndSet(this, NOT_USED, FREE);
+
+ if (parentMetric != null) {
+ if (parentMetric != null) {
Review comment:
thanks.. kind of a typo during the renaming...
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Issue Time Tracking
-------------------
Worklog Id: (was: 743729)
Time Spent: 5h 50m (was: 5h 40m)
> Max number of messages as a deciding factor for Paging
> ------------------------------------------------------
>
> Key: ARTEMIS-3720
> URL: https://issues.apache.org/jira/browse/ARTEMIS-3720
> Project: ActiveMQ Artemis
> Issue Type: Improvement
> Components: Broker
> Reporter: Clebert Suconic
> Assignee: Clebert Suconic
> Priority: Major
> Fix For: 2.21.0
>
> Time Spent: 5h 50m
> Remaining Estimate: 0h
>
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