diff --git a/spring-boot-compare-embedded/.gitignore b/spring-boot-compare-embedded/.gitignore deleted file mode 100644 index 2af7cefb0a..0000000000 --- a/spring-boot-compare-embedded/.gitignore +++ /dev/null @@ -1,24 +0,0 @@ -target/ -!.mvn/wrapper/maven-wrapper.jar - -### STS ### -.apt_generated -.classpath -.factorypath -.project -.settings -.springBeans - -### IntelliJ IDEA ### -.idea -*.iws -*.iml -*.ipr - -### NetBeans ### -nbproject/private/ -build/ -nbbuild/ -dist/ -nbdist/ -.nb-gradle/ \ No newline at end of file diff --git a/spring-boot-compare-embedded/.mvn/wrapper/maven-wrapper.jar b/spring-boot-compare-embedded/.mvn/wrapper/maven-wrapper.jar deleted file mode 100644 index 9cc84ea9b4..0000000000 Binary files a/spring-boot-compare-embedded/.mvn/wrapper/maven-wrapper.jar and /dev/null differ diff --git a/spring-boot-compare-embedded/.mvn/wrapper/maven-wrapper.properties b/spring-boot-compare-embedded/.mvn/wrapper/maven-wrapper.properties deleted file mode 100644 index 9dda3b659b..0000000000 --- a/spring-boot-compare-embedded/.mvn/wrapper/maven-wrapper.properties +++ /dev/null @@ -1 +0,0 @@ -distributionUrl=https://repo1.maven.org/maven2/org/apache/maven/apache-maven/3.5.2/apache-maven-3.5.2-bin.zip diff --git a/spring-boot-compare-embedded/README.MD b/spring-boot-compare-embedded/README.MD deleted file mode 100644 index e69de29bb2..0000000000 diff --git a/spring-boot-compare-embedded/mvnw b/spring-boot-compare-embedded/mvnw deleted file mode 100644 index 5bf251c077..0000000000 --- a/spring-boot-compare-embedded/mvnw +++ /dev/null @@ -1,225 +0,0 @@ -#!/bin/sh -# ---------------------------------------------------------------------------- -# 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. -# ---------------------------------------------------------------------------- - -# ---------------------------------------------------------------------------- -# Maven2 Start Up Batch script -# -# Required ENV vars: -# ------------------ -# JAVA_HOME - location of a JDK home dir -# -# Optional ENV vars -# ----------------- -# M2_HOME - location of maven2's installed home dir -# MAVEN_OPTS - parameters passed to the Java VM when running Maven -# e.g. to debug Maven itself, use -# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 -# MAVEN_SKIP_RC - flag to disable loading of mavenrc files -# ---------------------------------------------------------------------------- - -if [ -z "$MAVEN_SKIP_RC" ] ; then - - if [ -f /etc/mavenrc ] ; then - . /etc/mavenrc - fi - - if [ -f "$HOME/.mavenrc" ] ; then - . "$HOME/.mavenrc" - fi - -fi - -# OS specific support. $var _must_ be set to either true or false. -cygwin=false; -darwin=false; -mingw=false -case "`uname`" in - CYGWIN*) cygwin=true ;; - MINGW*) mingw=true;; - Darwin*) darwin=true - # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home - # See https://developer.apple.com/library/mac/qa/qa1170/_index.html - if [ -z "$JAVA_HOME" ]; then - if [ -x "/usr/libexec/java_home" ]; then - export JAVA_HOME="`/usr/libexec/java_home`" - else - export JAVA_HOME="/Library/Java/Home" - fi - fi - ;; -esac - -if [ -z "$JAVA_HOME" ] ; then - if [ -r /etc/gentoo-release ] ; then - JAVA_HOME=`java-config --jre-home` - fi -fi - -if [ -z "$M2_HOME" ] ; then - ## resolve links - $0 may be a link to maven's home - PRG="$0" - - # need this for relative symlinks - while [ -h "$PRG" ] ; do - ls=`ls -ld "$PRG"` - link=`expr "$ls" : '.*-> \(.*\)$'` - if expr "$link" : '/.*' > /dev/null; then - PRG="$link" - else - PRG="`dirname "$PRG"`/$link" - fi - done - - saveddir=`pwd` - - M2_HOME=`dirname "$PRG"`/.. - - # make it fully qualified - M2_HOME=`cd "$M2_HOME" && pwd` - - cd "$saveddir" - # echo Using m2 at $M2_HOME -fi - -# For Cygwin, ensure paths are in UNIX format before anything is touched -if $cygwin ; then - [ -n "$M2_HOME" ] && - M2_HOME=`cygpath --unix "$M2_HOME"` - [ -n "$JAVA_HOME" ] && - JAVA_HOME=`cygpath --unix "$JAVA_HOME"` - [ -n "$CLASSPATH" ] && - CLASSPATH=`cygpath --path --unix "$CLASSPATH"` -fi - -# For Migwn, ensure paths are in UNIX format before anything is touched -if $mingw ; then - [ -n "$M2_HOME" ] && - M2_HOME="`(cd "$M2_HOME"; pwd)`" - [ -n "$JAVA_HOME" ] && - JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`" - # TODO classpath? -fi - -if [ -z "$JAVA_HOME" ]; then - javaExecutable="`which javac`" - if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then - # readlink(1) is not available as standard on Solaris 10. - readLink=`which readlink` - if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then - if $darwin ; then - javaHome="`dirname \"$javaExecutable\"`" - javaExecutable="`cd \"$javaHome\" && pwd -P`/javac" - else - javaExecutable="`readlink -f \"$javaExecutable\"`" - fi - javaHome="`dirname \"$javaExecutable\"`" - javaHome=`expr "$javaHome" : '\(.*\)/bin'` - JAVA_HOME="$javaHome" - export JAVA_HOME - fi - fi -fi - -if [ -z "$JAVACMD" ] ; then - if [ -n "$JAVA_HOME" ] ; then - if [ -x "$JAVA_HOME/jre/sh/java" ] ; then - # IBM's JDK on AIX uses strange locations for the executables - JAVACMD="$JAVA_HOME/jre/sh/java" - else - JAVACMD="$JAVA_HOME/bin/java" - fi - else - JAVACMD="`which java`" - fi -fi - -if [ ! -x "$JAVACMD" ] ; then - echo "Error: JAVA_HOME is not defined correctly." >&2 - echo " We cannot execute $JAVACMD" >&2 - exit 1 -fi - -if [ -z "$JAVA_HOME" ] ; then - echo "Warning: JAVA_HOME environment variable is not set." -fi - -CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher - -# traverses directory structure from process work directory to filesystem root -# first directory with .mvn subdirectory is considered project base directory -find_maven_basedir() { - - if [ -z "$1" ] - then - echo "Path not specified to find_maven_basedir" - return 1 - fi - - basedir="$1" - wdir="$1" - while [ "$wdir" != '/' ] ; do - if [ -d "$wdir"/.mvn ] ; then - basedir=$wdir - break - fi - # workaround for JBEAP-8937 (on Solaris 10/Sparc) - if [ -d "${wdir}" ]; then - wdir=`cd "$wdir/.."; pwd` - fi - # end of workaround - done - echo "${basedir}" -} - -# concatenates all lines of a file -concat_lines() { - if [ -f "$1" ]; then - echo "$(tr -s '\n' ' ' < "$1")" - fi -} - -BASE_DIR=`find_maven_basedir "$(pwd)"` -if [ -z "$BASE_DIR" ]; then - exit 1; -fi - -export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"} -echo $MAVEN_PROJECTBASEDIR -MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS" - -# For Cygwin, switch paths to Windows format before running java -if $cygwin; then - [ -n "$M2_HOME" ] && - M2_HOME=`cygpath --path --windows "$M2_HOME"` - [ -n "$JAVA_HOME" ] && - JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"` - [ -n "$CLASSPATH" ] && - CLASSPATH=`cygpath --path --windows "$CLASSPATH"` - [ -n "$MAVEN_PROJECTBASEDIR" ] && - MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"` -fi - -WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain - -exec "$JAVACMD" \ - $MAVEN_OPTS \ - -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \ - "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \ - ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@" diff --git a/spring-boot-compare-embedded/mvnw.cmd b/spring-boot-compare-embedded/mvnw.cmd deleted file mode 100644 index 019bd74d76..0000000000 --- a/spring-boot-compare-embedded/mvnw.cmd +++ /dev/null @@ -1,143 +0,0 @@ -@REM ---------------------------------------------------------------------------- -@REM Licensed to the Apache Software Foundation (ASF) under one -@REM or more contributor license agreements. See the NOTICE file -@REM distributed with this work for additional information -@REM regarding copyright ownership. The ASF licenses this file -@REM to you under the Apache License, Version 2.0 (the -@REM "License"); you may not use this file except in compliance -@REM with the License. You may obtain a copy of the License at -@REM -@REM http://www.apache.org/licenses/LICENSE-2.0 -@REM -@REM Unless required by applicable law or agreed to in writing, -@REM software distributed under the License is distributed on an -@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY -@REM KIND, either express or implied. See the License for the -@REM specific language governing permissions and limitations -@REM under the License. -@REM ---------------------------------------------------------------------------- - -@REM ---------------------------------------------------------------------------- -@REM Maven2 Start Up Batch script -@REM -@REM Required ENV vars: -@REM JAVA_HOME - location of a JDK home dir -@REM -@REM Optional ENV vars -@REM M2_HOME - location of maven2's installed home dir -@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands -@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a key stroke before ending -@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven -@REM e.g. to debug Maven itself, use -@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 -@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files -@REM ---------------------------------------------------------------------------- - -@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on' -@echo off -@REM enable echoing my setting MAVEN_BATCH_ECHO to 'on' -@if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO% - -@REM set %HOME% to equivalent of $HOME -if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%") - -@REM Execute a user defined script before this one -if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre -@REM check for pre script, once with legacy .bat ending and once with .cmd ending -if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat" -if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd" -:skipRcPre - -@setlocal - -set ERROR_CODE=0 - -@REM To isolate internal variables from possible post scripts, we use another setlocal -@setlocal - -@REM ==== START VALIDATION ==== -if not "%JAVA_HOME%" == "" goto OkJHome - -echo. -echo Error: JAVA_HOME not found in your environment. >&2 -echo Please set the JAVA_HOME variable in your environment to match the >&2 -echo location of your Java installation. >&2 -echo. -goto error - -:OkJHome -if exist "%JAVA_HOME%\bin\java.exe" goto init - -echo. -echo Error: JAVA_HOME is set to an invalid directory. >&2 -echo JAVA_HOME = "%JAVA_HOME%" >&2 -echo Please set the JAVA_HOME variable in your environment to match the >&2 -echo location of your Java installation. >&2 -echo. -goto error - -@REM ==== END VALIDATION ==== - -:init - -@REM Find the project base dir, i.e. the directory that contains the folder ".mvn". -@REM Fallback to current working directory if not found. - -set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR% -IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir - -set EXEC_DIR=%CD% -set WDIR=%EXEC_DIR% -:findBaseDir -IF EXIST "%WDIR%"\.mvn goto baseDirFound -cd .. -IF "%WDIR%"=="%CD%" goto baseDirNotFound -set WDIR=%CD% -goto findBaseDir - -:baseDirFound -set MAVEN_PROJECTBASEDIR=%WDIR% -cd "%EXEC_DIR%" -goto endDetectBaseDir - -:baseDirNotFound -set MAVEN_PROJECTBASEDIR=%EXEC_DIR% -cd "%EXEC_DIR%" - -:endDetectBaseDir - -IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig - -@setlocal EnableExtensions EnableDelayedExpansion -for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a -@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS% - -:endReadAdditionalConfig - -SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe" - -set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar" -set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain - -%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %* -if ERRORLEVEL 1 goto error -goto end - -:error -set ERROR_CODE=1 - -:end -@endlocal & set ERROR_CODE=%ERROR_CODE% - -if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost -@REM check for post script, once with legacy .bat ending and once with .cmd ending -if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat" -if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd" -:skipRcPost - -@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on' -if "%MAVEN_BATCH_PAUSE%" == "on" pause - -if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE% - -exit /B %ERROR_CODE% diff --git a/spring-boot-compare-embedded/pom.xml b/spring-boot-compare-embedded/pom.xml deleted file mode 100644 index af2c4ad5c6..0000000000 --- a/spring-boot-compare-embedded/pom.xml +++ /dev/null @@ -1,107 +0,0 @@ - - - 4.0.0 - com.baeldung - spring-boot-compare-embedded - 0.0.1 - jar - spring-boot-compare-embedded - This is a simple application with used to compare embedded servlet containers. - - - com.baeldung - parent-boot-2 - 0.0.1-SNAPSHOT - ../parent-boot-2 - - - - - org.springframework.boot - spring-boot-starter - - - - - org.springframework.boot - spring-boot-starter-web - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - org.springframework.boot - spring-boot-starter-actuator - - - - org.openjdk.jmh - jmh-core - 1.21 - test - - - org.openjdk.jmh - jmh-generator-annprocess - 1.21 - test - - - com.jayway.jsonpath - json-path - test - - - org.springframework.boot - spring-boot-starter-test - test - - - - - - - org.springframework.boot - spring-boot-maven-plugin - - - - - - UTF-8 - UTF-8 - - - diff --git a/spring-boot-compare-embedded/src/main/resources/META-INF/BenchmarkList b/spring-boot-compare-embedded/src/main/resources/META-INF/BenchmarkList deleted file mode 100644 index e69de29bb2..0000000000 diff --git a/spring-boot-compare-embedded/src/test/java/com/baeldung/embedded/ComparisonBenchmarkTest.java b/spring-boot-compare-embedded/src/test/java/com/baeldung/embedded/ComparisonBenchmarkTest.java deleted file mode 100644 index 23d51a5c94..0000000000 --- a/spring-boot-compare-embedded/src/test/java/com/baeldung/embedded/ComparisonBenchmarkTest.java +++ /dev/null @@ -1,119 +0,0 @@ -package com.baeldung.embedded; - -import java.util.Arrays; -import java.util.List; -import java.util.concurrent.TimeUnit; - -import org.assertj.core.util.Lists; -import org.junit.Before; -import org.junit.Test; -import org.junit.runner.RunWith; -import org.openjdk.jmh.annotations.Benchmark; -import org.openjdk.jmh.annotations.Mode; -import org.openjdk.jmh.runner.Runner; -import org.openjdk.jmh.runner.options.Options; -import org.openjdk.jmh.runner.options.OptionsBuilder; -import org.openjdk.jmh.runner.options.TimeValue; -import org.springframework.boot.test.context.SpringBootTest; -import org.springframework.boot.test.context.SpringBootTest.WebEnvironment; -import org.springframework.test.context.junit4.SpringRunner; -import org.springframework.web.client.RestTemplate; - -import com.jayway.jsonpath.JsonPath; - -@RunWith(SpringRunner.class) -@SpringBootTest(webEnvironment = WebEnvironment.DEFINED_PORT) -public class ComparisonBenchmarkTest { - - private static final String BASE_URL = "http://localhost:8080/actuator/metrics"; - - @Before - public void getAndPrintActuatorMetrics() { - RestTemplate restTemplate = new RestTemplate(); - for (MetricConfiguration c : getMetricConfigs()) { - getAndPrintActuatorMetric(restTemplate, c); - } - System.out.println(""); - } - - @Test - public void launchBenchmark() throws Exception { - Options opt = new OptionsBuilder() - .include(this.getClass().getName() + ".*") - .mode(Mode.Throughput) - .timeUnit(TimeUnit.SECONDS) - .warmupIterations(3) - .warmupTime(TimeValue.seconds(10)) - .measurementIterations(3) - .measurementTime(TimeValue.minutes(1)) - .threads(5) - .forks(1) - .shouldFailOnError(true) - .shouldDoGC(true) - .build(); - new Runner(opt).run(); - } - - @Benchmark - public void benchmark() throws Exception { - RestTemplate template = new RestTemplate(); - for (int i = 0; i < 10; i++) { - MetricNames metricNames = template.getForObject(BASE_URL, MetricNames.class); - metricNames.getNames().stream().forEach(n -> { - template.getForObject(BASE_URL + "/" + n, String.class); - }); - } - } - - static class MetricNames { - private String[] names; - - public List getNames() { - return Arrays.asList(this.names); - } - } - - static class MetricConfiguration { - - private String label; - private String metric; - private Class type; - private String jsonPath; - - public MetricConfiguration(String label, String metric, Class type, String path) { - this.label = label; - this.metric = metric; - this.type = type; - this.jsonPath = path; - } - - public String getLabel() { - return label; - } - - public Class getType() { - return type; - } - - public String getJsonPath() { - return jsonPath; - } - - public String getMetric() { - return metric; - } - } - - private List getMetricConfigs() { - return Lists.newArrayList( - new MetricConfiguration("jvm.memory.used", "jvm.memory.used", Integer.class, "$.measurements[0].value"), - new MetricConfiguration("jvm.classes.loaded", "jvm.classes.loaded", Integer.class, "$.measurements[0].value"), - new MetricConfiguration("jvm.threads.live", "jvm.threads.live", Integer.class, "$.measurements[0].value")); - } - - private void getAndPrintActuatorMetric(RestTemplate restTemplate, MetricConfiguration c) { - String response = restTemplate.getForObject(BASE_URL + "/" + c.getMetric(), String.class); - String value = (JsonPath.parse(response).read(c.getJsonPath(), c.getType())).toString(); - System.out.println("Startup Metric >>> " + c.getLabel() + "=" + value); - } -} diff --git a/spring-boot-compare-embedded/src/test/resources/logback-test.xml b/spring-boot-compare-embedded/src/test/resources/logback-test.xml deleted file mode 100644 index ca894df791..0000000000 --- a/spring-boot-compare-embedded/src/test/resources/logback-test.xml +++ /dev/null @@ -1,5 +0,0 @@ - - - - - \ No newline at end of file diff --git a/spring-boot-compare-embedded/src/main/java/com/baeldung/embedded/ComparisonApplication.java b/spring-boot-ops/src/main/java/com/baeldung/compare/ComparisonApplication.java similarity index 90% rename from spring-boot-compare-embedded/src/main/java/com/baeldung/embedded/ComparisonApplication.java rename to spring-boot-ops/src/main/java/com/baeldung/compare/ComparisonApplication.java index b7c5d81388..eb9d5ec4d0 100644 --- a/spring-boot-compare-embedded/src/main/java/com/baeldung/embedded/ComparisonApplication.java +++ b/spring-boot-ops/src/main/java/com/baeldung/compare/ComparisonApplication.java @@ -1,4 +1,4 @@ -package com.baeldung.embedded; +package com.baeldung.compare; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; diff --git a/spring-boot-ops/src/main/java/com/baeldung/compare/StartupEventHandler.java b/spring-boot-ops/src/main/java/com/baeldung/compare/StartupEventHandler.java new file mode 100644 index 0000000000..e0756f704e --- /dev/null +++ b/spring-boot-ops/src/main/java/com/baeldung/compare/StartupEventHandler.java @@ -0,0 +1,65 @@ +package com.baeldung.compare; + +import java.util.Arrays; +import java.util.LinkedHashMap; +import java.util.Map; +import java.util.function.BiFunction; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.springframework.boot.context.event.ApplicationReadyEvent; +import org.springframework.context.event.EventListener; +import org.springframework.stereotype.Component; + +import io.micrometer.core.instrument.Meter; +import io.micrometer.core.instrument.MeterRegistry; +import io.micrometer.core.instrument.Statistic; + +@Component +public class StartupEventHandler { + + // logger, constructor + private static Logger logger = LoggerFactory.getLogger(StartupEventHandler.class); + + public StartupEventHandler(MeterRegistry registry) { + this.meterRegistry = registry; + } + + private String[] METRICS = { + "jvm.memory.used", + "jvm.classes.loaded", + "jvm.threads.live"}; + + private String METRIC_MSG_FORMAT = "Startup Metric >> {}={}"; + + private MeterRegistry meterRegistry; + + @EventListener + public void getAndLogStartupMetrics( + ApplicationReadyEvent event) { + Arrays.asList(METRICS) + .forEach(this::getAndLogActuatorMetric); + } + + private void getAndLogActuatorMetric(String metric) { + Meter meter = meterRegistry.find(metric).meter(); + Map stats = getSamples(meter); + + logger.info(METRIC_MSG_FORMAT, metric, stats.get(Statistic.VALUE).longValue()); + } + + private Map getSamples(Meter meter) { + Map samples = new LinkedHashMap<>(); + mergeMeasurements(samples, meter); + return samples; + } + + private void mergeMeasurements(Map samples, Meter meter) { + meter.measure().forEach((measurement) -> samples.merge(measurement.getStatistic(), + measurement.getValue(), mergeFunction(measurement.getStatistic()))); + } + + private BiFunction mergeFunction(Statistic statistic) { + return Statistic.MAX.equals(statistic) ? Double::max : Double::sum; + } +} diff --git a/spring-boot-compare-embedded/src/main/resources/application.properties b/spring-boot-ops/src/main/resources/application.properties similarity index 100% rename from spring-boot-compare-embedded/src/main/resources/application.properties rename to spring-boot-ops/src/main/resources/application.properties