fish.payara.microprofile.metrics.impl.MetricsConfigParserUtil Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of payara-micro Show documentation
Show all versions of payara-micro Show documentation
Micro Distribution of the Payara Project
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2023 Payara Foundation and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://github.com/payara/Payara/blob/master/LICENSE.txt
* See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* The Payara Foundation designates this particular file as subject to the "Classpath"
* exception as provided by the Payara Foundation in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package fish.payara.microprofile.metrics.impl;
import fish.payara.microprofile.metrics.cdi.MetricUtils;
import java.time.Duration;
import java.util.ArrayDeque;
import java.util.Arrays;
import java.util.Collection;
import java.util.Optional;
import java.util.logging.Logger;
import org.eclipse.microprofile.config.Config;
import static fish.payara.microprofile.metrics.impl.MetricRegistryImpl.*;
public class MetricsConfigParserUtil {
private static final Logger logger = Logger.getLogger(MetricsConfigParserUtil.class.getName());
private static final String PROPERTY_NAME_SEPARATOR = ";";
private static final String PROPERTY_KEY_VALUE_SEPARATOR = "=";
private static final String PROPERTY_VALUE_SEPARATOR = ",";
public static Collection parsePercentile(String percentileProperty) {
ArrayDeque metricPercentileCollection = new ArrayDeque<>();
if (percentileProperty == null || percentileProperty.length() == 0) {
return null;
}
MetricsCustomPercentiles customPercentile = null;
String[] valuePairs = percentileProperty.split(PROPERTY_NAME_SEPARATOR);
for (String nameValue : valuePairs) {
String[] resultKeyValueSplit = nameValue.split(PROPERTY_KEY_VALUE_SEPARATOR);
String metricName = resultKeyValueSplit[0];
if (resultKeyValueSplit.length == 1) {
customPercentile = new MetricsCustomPercentiles(metricName, true);
} else {
Double[] percentileValues = Arrays.asList(resultKeyValueSplit[1].split(PROPERTY_VALUE_SEPARATOR)).stream()
.map(MetricsConfigParserUtil::evaluatePercentileValue)
.filter(d -> d != null && d >= 0.0 && d <= 1.0).toArray(Double[]::new);
Arrays.sort(percentileValues);
customPercentile = new MetricsCustomPercentiles(metricName, percentileValues);
}
metricPercentileCollection.addFirst(customPercentile);
}
return metricPercentileCollection;
}
public static Collection parseHistogramBuckets(String histogramBucketsProperty) {
ArrayDeque metricHistogramCollection = new ArrayDeque<>();
if (histogramBucketsProperty == null || histogramBucketsProperty.length() == 0) {
return null;
}
MetricsCustomBuckets customBucket = null;
String[] valuePairs = histogramBucketsProperty.split(PROPERTY_NAME_SEPARATOR);
for (String nameValue : valuePairs) {
String[] resultKeyValueSplit = nameValue.split(PROPERTY_KEY_VALUE_SEPARATOR);
String metricName = resultKeyValueSplit[0];
if (resultKeyValueSplit.length == 1) {
//evaluate when no value, disabled
} else {
Double[] bucketValues = Arrays.asList(resultKeyValueSplit[1].split(PROPERTY_VALUE_SEPARATOR)).stream()
.map(MetricsConfigParserUtil::evaluateHistogramBucketValue)
.filter(d -> d != null).toArray(Double[]::new);
Arrays.sort(bucketValues);
customBucket = new MetricsCustomBuckets(metricName, bucketValues);
}
metricHistogramCollection.addFirst(customBucket);
}
return metricHistogramCollection;
}
public static Collection parseTimerBuckets(String timerBucketsProperty) {
ArrayDeque metricTimerCollection = new ArrayDeque<>();
if (timerBucketsProperty == null || timerBucketsProperty.length() == 0) {
return null;
}
MetricsCustomBuckets customBucket = null;
String[] valuePairs = timerBucketsProperty.split(PROPERTY_NAME_SEPARATOR);
for (String nameValue : valuePairs) {
String[] resultKeyValueSplit = nameValue.split(PROPERTY_KEY_VALUE_SEPARATOR);
String metricName = resultKeyValueSplit[0];
if (resultKeyValueSplit.length != 1) {
Duration[] bucketValues = Arrays.asList(resultKeyValueSplit[1].split(PROPERTY_VALUE_SEPARATOR)).stream()
.map(MetricsConfigParserUtil::evaluateTimerBucketValue)
.filter(d -> d != null).toArray(Duration[]::new);
customBucket = new MetricsCustomBuckets(metricName,
Arrays.stream(bucketValues).mapToDouble(Duration::toNanos).boxed().toArray(Double[]::new));
}
metricTimerCollection.addFirst(customBucket);
}
return metricTimerCollection;
}
public static Collection processPercentileMap(String appName) {
Config config = MetricUtils.getConfigProvider();
if (config != null) {
Optional customPercentiles = config.getOptionalValue(METRIC_PERCENTILES_PROPERTY, String.class);
return (customPercentiles.isPresent()) ? MetricsConfigParserUtil.parsePercentile(customPercentiles.get()) : null;
}
return null;
}
public static Double evaluatePercentileValue(String percentile) {
if (percentile.matches("[0][.][0-9]+")) {
return Double.parseDouble(percentile);
} else {
logger.info(String.format("Error when trying to read property %s with %s name", METRIC_PERCENTILES_PROPERTY, percentile));
return null;
}
}
public static Double evaluateHistogramBucketValue(String bucket) {
if (bucket.matches("[0-9]+[.]*[0-9]*")) {
return Double.parseDouble(bucket);
} else {
logger.info(String.format("Error when trying to read property %s with %s name", METRIC_HISTOGRAM_BUCKETS_PROPERTY, bucket));
return null;
}
}
public static Duration evaluateTimerBucketValue(String bucket) {
bucket = bucket.trim();
if (bucket.matches("[0-9]+ms")) { //case ms
return Duration.ofMillis(Long.parseLong(bucket.substring(0, bucket.length() - 2)));
} else if (bucket.matches("[0-9]+s")) { //case s
return Duration.ofSeconds(Long.parseLong(bucket.substring(0, bucket.length() - 1)));
} else if (bucket.matches("[0-9]+m")) { //case m
return Duration.ofMinutes(Long.parseLong(bucket.substring(0, bucket.length() - 1)));
} else if (bucket.matches("[0-9]+h")) { //case h
return Duration.ofHours(Long.parseLong(bucket.substring(0, bucket.length() - 1)));
} else if (bucket.matches("[0-9]+")) { //normal
return Duration.ofMillis(Long.parseLong(bucket));
} else {
logger.info(String.format("Error when trying to read property %s with %s name", METRIC_TIMER_BUCKETS_PROPERTY, bucket));
return null;
}
}
}