Initial commit

main
2wenty1ne 2025-11-29 22:02:55 +01:00
commit b917ae613c
23 changed files with 1552 additions and 0 deletions

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target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/
.kotlin
### IntelliJ IDEA ###
.idea/modules.xml
.idea/jarRepositories.xml
.idea/compiler.xml
.idea/libraries/
*.iws
*.iml
*.ipr
### Eclipse ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
!**/src/main/**/build/
!**/src/test/**/build/
### VS Code ###
.vscode/
### Mac OS ###
.DS_Store

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# Default ignored files
/shelf/
/workspace.xml
# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="Encoding">
<file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
<file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
</component>
</project>

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.idea/misc.xml 100644
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ExternalStorageConfigurationManager" enabled="true" />
<component name="KubernetesApiProvider"><![CDATA[{}]]></component>
<component name="MavenProjectsManager">
<option name="originalFiles">
<list>
<option value="$PROJECT_DIR$/pom.xml" />
</list>
</option>
</component>
<component name="ProjectRootManager" version="2" languageLevel="JDK_25" default="true" project-jdk-name="25" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/out" />
</component>
</project>

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.mvn/wrapper/maven-wrapper.jar vendored 100644

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distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.6/apache-maven-3.9.6-bin.zip
wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.3.0/maven-wrapper-3.3.0.jar

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#!/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
#
# https://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.
# ----------------------------------------------------------------------------
# ----------------------------------------------------------------------------
# Maven 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 "$MAVEN_SKIP_RC" ] ; then
if [ -f /usr/local/etc/mavenrc ] ; then
. /usr/local/etc/mavenrc
fi
if [ -f /etc/mavenrc ] ; then
. /etc/mavenrc
fi
if [ -f "$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 Mingw, 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 "$JAVA_HOME"; pwd)`"
fi
if [ -z "$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="`\\unset -f command; \\command -v 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 "$BASE_DIR" ]; then
exit 1;
fi
##########################################################################################
# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
# This allows using the maven wrapper in projects that prohibit checking in binary data.
##########################################################################################
if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found .mvn/wrapper/maven-wrapper.jar"
fi
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
fi
if [ -n "$MVNW_REPOURL" ]; then
jarUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
else
jarUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
fi
while IFS="=" read key value; do
case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
esac
done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
if [ "$MVNW_VERBOSE" = true ]; then
echo "Downloading from: $jarUrl"
fi
wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
if $cygwin; then
wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
fi
if command -v wget > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found wget ... using wget"
fi
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
wget "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
else
wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
fi
elif command -v curl > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found curl ... using curl"
fi
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
curl -o "$wrapperJarPath" "$jarUrl" -f
else
curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
fi
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Falling back to using Java to download"
fi
javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
# For Cygwin, switch paths to Windows format before running javac
if $cygwin; then
javaClass=`cygpath --path --windows "$javaClass"`
fi
if [ -e "$javaClass" ]; then
if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
if [ "$MVNW_VERBOSE" = true ]; then
echo " - Compiling MavenWrapperDownloader.java ..."
fi
# Compiling the Java class
("$JAVA_HOME/bin/javac" "$javaClass")
fi
if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
# Running the downloader
if [ "$MVNW_VERBOSE" = true ]; then
echo " - Running MavenWrapperDownloader.java ..."
fi
("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
fi
fi
fi
fi
##########################################################################################
# End of extension
##########################################################################################
export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
if [ "$MVNW_VERBOSE" = true ]; then
echo $MAVEN_PROJECTBASEDIR
fi
MAVEN_OPTS="$(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 "$MAVEN_PROJECTBASEDIR"`
fi
# Provide a "standardized" way to retrieve the CLI args that will
# work with both Windows and non-Windows executions.
MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
export MAVEN_CMD_LINE_ARGS
WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
exec "$JAVACMD" \
$MAVEN_OPTS \
$MAVEN_DEBUG_OPTS \
-classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
"-Dmaven.home=${M2_HOME}" \
"-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"

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mvnw.cmd vendored 100644
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@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 https://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 Maven 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 keystroke 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 set title of command window
title %0
@REM enable echoing by 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 "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %*
if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\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
set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
)
@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
if exist %WRAPPER_JAR% (
if "%MVNW_VERBOSE%" == "true" (
echo Found %WRAPPER_JAR%
)
) else (
if not "%MVNW_REPOURL%" == "" (
SET DOWNLOAD_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
)
if "%MVNW_VERBOSE%" == "true" (
echo Couldn't find %WRAPPER_JAR%, downloading it ...
echo Downloading from: %DOWNLOAD_URL%
)
powershell -Command "&{"^
"$webclient = new-object System.Net.WebClient;"^
"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
"}"^
"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
"}"
if "%MVNW_VERBOSE%" == "true" (
echo Finished downloading %WRAPPER_JAR%
)
)
@REM End of extension
@REM Provide a "standardized" way to retrieve the CLI args that will
@REM work with both Windows and non-Windows executions.
set MAVEN_CMD_LINE_ARGS=%*
%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 "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat"
if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\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%
cmd /C exit /B %ERROR_CODE%

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pom.xml 100644
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>vs</groupId>
<artifactId>MessagingMonitor</artifactId>
<version>1.0-SNAPSHOT</version>
<name>Messaging Monitor</name>
<packaging>war</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.target>25</maven.compiler.target>
<maven.compiler.source>25</maven.compiler.source>
<junit.version>5.13.2</junit.version>
</properties>
<dependencies>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.15.2</version>
</dependency>
<dependency>
<groupId>org.eclipse.paho</groupId>
<artifactId>org.eclipse.paho.client.mqttv3</artifactId>
<version>1.2.5</version>
</dependency>
<dependency>
<groupId>jakarta.websocket</groupId>
<artifactId>jakarta.websocket-api</artifactId>
<version>2.2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-websocket</artifactId>
<version>10.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>jakarta.servlet</groupId>
<artifactId>jakarta.servlet-api</artifactId>
<version>6.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.4.0</version>
</plugin>
</plugins>
</build>
</project>

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package vs.messagingmonitor;
/**
* helper class for RFC 5424 (https://datatracker.ietf.org/doc/html/rfc5424)
* compliant log messages as immutable Java objects - representation of a subset
* of printable strings of specific length
*
* @author Sandro Leuchter
*
*/
public abstract class AsciiChars {
private final String value;
public String value() {
return this.value;
}
protected AsciiChars(int length, String value) {
if (value != null) {
if (value.length() > length) {
throw new IllegalArgumentException(
"Stringlänge = " + value.length() + " > " + length);
}
for (int c : value.getBytes()) {
if (c < 33 || c > 126) {
throw new IllegalArgumentException(
"Stringinhalt nicht printable US-ASCII ohne Space");
}
}
}
this.value = value;
}
@Override
public String toString() {
if (value() == null || value().length() == 0) {
return "-";
} else {
return value();
}
}
static public final class L004 extends AsciiChars {
public L004(String value) {
super(4, value);
}
}
static public final class L012 extends AsciiChars {
public L012(String value) {
super(12, value);
}
}
static public final class L032 extends AsciiChars {
public L032(String value) {
super(32, value);
}
}
static public final class L048 extends AsciiChars {
public L048(String value) {
super(48, value);
}
}
static public final class L128 extends AsciiChars {
public L128(String value) {
super(128, value);
}
}
static public final class L255 extends AsciiChars {
public L255(String value) {
super(255, value);
}
}
}

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package vs.messagingmonitor;
public class Conf {
public static final String ROOTTOPIC = "messagingMonitor1337";
}

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package vs.messagingmonitor;
import org.eclipse.paho.client.mqttv3.*;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
public class MqttReceiver {
private final String channel;
private final String topic;
private final String broker;
private MqttClient mqttClient;
public MqttReceiver(String channel, String topic, String broker) {
this.channel = channel;
this.topic = topic;
this.broker = broker;
createClient();
}
private void createClient() {
try {
String clientId = MqttClient.generateClientId();
mqttClient = new MqttClient(broker, clientId);
MqttConnectOptions options = new MqttConnectOptions();
options.setAutomaticReconnect(true);
options.setKeepAliveInterval(60);
mqttClient.setCallback(mqttCallback);
WebappWebsocket.sendMessage("Channel " + channel + ": Connected!");
mqttClient.connect(options);
mqttClient.subscribe(topic);
}
catch (MqttException | IOException e) {
System.err.println("Error creating client on channel " + channel + ":\n" + e.getMessage());
}
}
private final MqttCallback mqttCallback = new MqttCallback() {
@Override
public void connectionLost(Throwable throwable) {}
@Override
public void deliveryComplete(IMqttDeliveryToken iMqttDeliveryToken) {}
@Override
public void messageArrived(String topic, MqttMessage mqttMessage) {
System.out.println("Test");
System.out.println("Received: " + mqttMessage.toString());
byte[] messageData = mqttMessage.getPayload();
SyslogMessage syslogMsg;
System.out.println("After getting payload");
try {
ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(messageData));
System.out.println("After converting to stream");
Object receivedObject = ois.readObject();
if (!(receivedObject instanceof SyslogMessage)) {
System.out.println("Not a syslog message!");
return;
}
syslogMsg = (SyslogMessage) receivedObject;
if (!(syslogMsg.sev().ordinal() <= SyslogMessage.Severity.WARNING.ordinal())) {
WebappWebsocket.sendMessage("Channel " + channel + ": " + syslogMsg.toString());
}
}
catch (ClassNotFoundException | IOException e) {
System.err.println("Error while message arrival: " + e);
}
}
};
public void disconnect() {
try {
if (mqttClient != null && mqttClient.isConnected()) {
System.out.println("Diconnecting client");
mqttClient.disconnect();
}
} catch (MqttException e) {
System.err.println("Error during disconnect: " + e.getMessage());
}
}
}

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package vs.messagingmonitor;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
import java.util.Date;
import vs.messagingmonitor.AsciiChars.L032;
import vs.messagingmonitor.AsciiChars.L048;
import vs.messagingmonitor.AsciiChars.L128;
import vs.messagingmonitor.AsciiChars.L255;
import org.eclipse.paho.client.mqttv3.MqttClient;
import org.eclipse.paho.client.mqttv3.MqttException;
import org.eclipse.paho.client.mqttv3.MqttMessage;
class Publisher {
public static void main(String[] args) {
String broker = args[0];
System.out.println("Broker: " + broker);
String topic = args[1];
System.out.println("Topic: " + topic);
MqttClient client;
String clientId = MqttClient.generateClientId();
try {
client = new MqttClient(broker, clientId);
client.connect();
SyslogMessage.TextMessage textMessage = new SyslogMessage.TextMessage("message");
SyslogMessage syslogMessage = new SyslogMessage(
SyslogMessage.Facility.USER,
SyslogMessage.Severity.INFORMATIONAL,
new L255("192.168.2.100"),
new L048("java"),
new L128("1"),
new L032("1"),
new StructuredData(new ArrayList<>()),
textMessage
);
MqttMessage message = new MqttMessage();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(syslogMessage);
oos.flush();
message.setPayload(baos.toByteArray());
client.publish(topic, message);
oos.close();
client.disconnect();
System.out.println("DONE!");
} catch (MqttException | IOException e) {
System.err.println(e.getMessage());
}
}
}

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package vs.messagingmonitor;
import java.util.ArrayList;
import java.util.List;
/**
* helper class for RFC 5424 (https://datatracker.ietf.org/doc/html/rfc5424)
* compliant log messages as immutable Java objects - structured data (set of
* key/value-pairs) with some predefined sets according to the standard
*
* @author Sandro Leuchter
*
*/
public class StructuredData {
static public class Element {
private final String name;
private List<Param> parameters;
public static Element newTimeQuality(boolean tzKnown,
boolean isSynced) {
return newTimeQuality(tzKnown, isSynced, null);
}
public static Element newTimeQuality(boolean tzKnown, boolean isSynced,
Integer syncAccuracy) {
var e = new Element("timeQuality");
e.add(new Param("tzKnown", (tzKnown) ? "1" : "0"));
e.add(new Param("isSynced", (isSynced) ? "1" : "0"));
if (syncAccuracy != null && !isSynced) {
e.add(new Param("syncAccuracy", String.valueOf(syncAccuracy)));
}
return e;
}
public static Element newOrigin(String enterpriseId, String software,
String swVersion) {
return newOrigin(new String[] {}, enterpriseId, software,
swVersion);
}
public static Element newOrigin(String ip, String enterpriseId,
String software, String swVersion) {
return newOrigin(new String[] { ip }, enterpriseId, software,
swVersion);
}
public static Element newOrigin(String[] ip, String enterpriseId,
String software, String swVersion) {
var e = new Element("origin");
for (var p : ip) {
e = e.add(new Param("ip", p));
}
if (enterpriseId != null && !enterpriseId.equals("")) {
e = e.add(new Param("enterpriseId", enterpriseId));
}
if (software != null && !software.equals("")) {
e = e.add(new Param("software", software));
}
if (swVersion != null && !swVersion.equals("")) {
e = e.add(new Param("swVersion", swVersion));
}
return e;
}
public static Element newMeta(Integer sequenceId, Integer sysUpTime,
String language) {
var e = new Element("meta");
if (sequenceId != null && sequenceId > 0) {
e = e.add(new Param("sequenceId",
String.valueOf(sequenceId % 2147483647)));
}
if (sysUpTime != null && sysUpTime >= 0) {
e = e.add(new Param("sysUpTime", String.valueOf(sysUpTime)));
}
if (language != null && !language.equals("")) {
e = e.add(new Param("language", language));
}
return e;
}
public Element(String name) {
this.name = name;
this.parameters = new ArrayList<>();
}
public Element add(Param parameter) {
var e = new Element(this.name);
e.parameters = this.parameters;
e.parameters.add(parameter);
return e;
}
@Override
public String toString() {
var str = "[" + this.name;
for (var p : this.parameters) {
str = str + " " + p.toString();
}
return str + "]";
}
}
static public class Param {
private final String name;
// name: printable US-ASCII string ^[@=\]\"\s]+
// "@" + private enterpise number "@\d+(\.\d+)*"
private final String value;
public Param(String name, String value) {
this.name = name; // 7-Bit ASCII
this.value = value; // UTF-8
}
@Override
public String toString() {
return this.name + "=\"" + this.value + "\"";
}
}
private List<Element> params;
public StructuredData() {
this.params = new ArrayList<>();
}
public StructuredData(List<Element> params) {
this.params = params;
}
public String toString() {
if (this.params.size() == 0) {
return "-";
}
var str = "";
for (var p : this.params) {
str = str + p.toString();
}
return str;
}
public StructuredData add(Element e) {
var p = this.params;
p.add(e);
return new StructuredData(p);
}
}

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package vs.messagingmonitor;
import java.io.Serializable;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* RFC 5424 (https://datatracker.ietf.org/doc/html/rfc5424) compliant log
* messages as immutable Java objects
*
* @author Sandro Leuchter
*
*/
public class SyslogMessage implements Serializable {
private static final long serialVersionUID = -5895573029109990861L;
private final Facility fac;
private final Severity sev;
private final AsciiChars.L255 host;
private final AsciiChars.L048 appName;
private final AsciiChars.L128 procId;
private final AsciiChars.L032 msgId;
private final StructuredData data;
private final Message message;
public SyslogMessage(Facility fac, Severity sev, AsciiChars.L255 host,
AsciiChars.L048 appName, AsciiChars.L128 procId,
AsciiChars.L032 msgId, StructuredData data, Message message) {
this.fac = fac;
this.sev = sev;
this.host = host;
this.appName = appName;
this.procId = procId;
this.msgId = msgId;
this.data = data;
this.message = message;
}
public Facility fac() {
return this.fac;
}
public Severity sev() {
return sev;
}
public AsciiChars.L255 host() {
return host;
}
public AsciiChars.L048 appName() {
return appName;
}
public AsciiChars.L128 procId() {
return procId;
}
public AsciiChars.L032 msgId() {
return msgId;
}
public StructuredData data() {
return data;
}
public Message message() {
return message;
}
public static int version() {
return VERSION;
}
public static enum Facility {
KERNEL, USER, MAIL_SYSTEM, SYS_DAEMON, SECURITY1, INTERNAL, PRINTER,
NEWS, UUCP, CLOCK1, SECURITY2, FTP, NTP, AUDIT, ALERT, CLOCK2, LOCAL0,
LOCAL1, LOCAL2, LOCAL3, LOCAL4, LOCAL5, LOCAL6, LOCAL7;
}
public static enum Severity {
EMERGENCY, ALERT, CRITICAL, ERROR, WARNING, NOTICE, INFORMATIONAL,
DEBUG;
}
public static interface Message {
public Object message();
public int length();
}
public static class BinaryMessage implements Message {
private Byte[] message;
public BinaryMessage(Byte[] message) {
this.message = message;
}
@Override
public String toString() {
return message.toString();
}
@Override
public Object message() {
return this.message;
}
@Override
public int length() {
return this.message.length;
}
}
public static class TextMessage implements Message {
private String message; // UTF8
public TextMessage(String message) {
this.message = message;
}
@Override
public String toString() {
return "\u00EF\u00BB\u00BF" + message.toString();
}
@Override
public Object message() {
return this.message;
}
@Override
public int length() {
return this.message.length();
}
}
static final int VERSION = 1; // RFC 5424, Mar 2009
@Override
public String toString() {
var prival = String.valueOf(fac().ordinal() * 8 + sev().ordinal());
var d = "";
if (data() != null) {
d = " " + data();
}
var m = "";
if (message() != null && message().message() != null
&& message().length() > 0) {
m = " " + message();
}
var timestamp = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssXXX")
.format(new Date());
return "<" + prival + ">" + VERSION + " " + timestamp + " "
+ host().toString() + " " + appName().toString() + " "
+ procId().toString() + " " + msgId().toString() + d + m;
}
}

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package vs.messagingmonitor;
import java.io.*;
import java.util.stream.Collectors;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import jakarta.servlet.ServletException;
import jakarta.servlet.http.*;
import jakarta.servlet.annotation.*;
@WebServlet("/webapp")
public class WebappServlet extends HttpServlet {
private ObjectMapper objectMapper = new ObjectMapper();
@Override
public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
String jsonString = request.getReader().lines().collect(Collectors.joining());
JsonNode jsonData = objectMapper.readTree(jsonString);
String topic = "";
String address = "";
String channel = "";
if (jsonData.has(("topic"))) {
topic = jsonData.get("topic").asText();
}
if (jsonData.has("address")) {
address = jsonData.get("address").asText();
}
if (jsonData.has("channel")) {
channel = jsonData.get("channel").asText();
}
WebappWebsocket.addReceiver(topic, address, channel);
response.getWriter().append("Success");
}
}

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package vs.messagingmonitor;
import jakarta.websocket.*;
import jakarta.websocket.server.ServerEndpoint;
import org.eclipse.paho.client.mqttv3.*;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
@ServerEndpoint("/syslog")
public class WebappWebsocket {
private static List<Session> clients = new ArrayList<>();
private static MqttReceiver receiverOne = null;
private static MqttReceiver receiverTwo = null;
public static void sendMessage(String message) throws IOException {
synchronized (WebappWebsocket.clients) {
for (Session client: WebappWebsocket.clients) {
if (client.isOpen()) {
client.getBasicRemote().sendText(message);
}
}
}
}
public static synchronized void addReceiver(String topic, String broker, String channel) {
topic = Conf.ROOTTOPIC + "/" + topic;
removeReceiver(channel);
if ("one".equals(channel)) {
receiverOne = new MqttReceiver("one", topic, broker);
}
if ("two".equals(channel)) {
receiverTwo = new MqttReceiver("two", topic, broker);
}
}
public static synchronized void removeReceiver(String channel) {
if ("one".equals(channel)) {
if (receiverOne != null) {
receiverOne.disconnect();
receiverOne = null;
}
}
if ("two".equals(channel)) {
if (receiverTwo != null) {
receiverTwo.disconnect();
receiverTwo = null;
}
}
}
@OnOpen
public void onOpen(Session session) {
synchronized (WebappWebsocket.clients) {
System.out.println("New client!");
//TODO send current open topics
WebappWebsocket.clients.add(session);
}
try {
session.getBasicRemote().sendText("Websocket connection established\n");
} catch (IOException e) {
e.printStackTrace(System.err);
}
}
@OnClose
public void close(Session session) {
synchronized (WebappWebsocket.clients) {
WebappWebsocket.clients.remove(session);
}
}
}

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<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="https://jakarta.ee/xml/ns/jakartaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="https://jakarta.ee/xml/ns/jakartaee https://jakarta.ee/xml/ns/jakartaee/web-app_6_0.xsd"
version="6.0">
<!-- <servlet>-->
<!-- <servlet-name>WebappServlet</servlet-name>-->
<!-- <servlet-class>vs.messagingmonitor.WebappServlet</servlet-class>-->
<!-- </servlet>-->
<!-- <servlet-mapping>-->
<!-- <servlet-name>WebappServlet</servlet-name>-->
<!-- <url-pattern>/webapp</url-pattern>-->
<!-- </servlet-mapping>-->
</web-app>

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:root {
--text-color: #FFFFFF;
}
body {
display: flex;
flex-direction: column;
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
line-height: 1.6;
height: 100vh;
background: linear-gradient(90deg, #1A1625, #2D1B69);
color: var(--text-color);
overflow: hidden;
margin: 0;
margin-left: 5%;
}
.content-area {
display: flex;
flex-direction: row;
justify-content: space-between;
height: 100%;
margin-right: 5%;
margin-bottom: 5%;
/*border: 2px solid red;*/
overflow: hidden;
}
.input-field-wrapper {
display: flex;
flex-direction: column;
justify-content: flex-start;
gap: 3%;
}
.input-field {
//display: block;
width: fit-content;
padding: 20px;
border: 2px solid rgb(97, 10, 173);
border-radius: 5px;
}
.channel-header {
color: #a8b3e2;
font-weight: 600;
font-size: 1.25rem;
}
.input-button-wrapper {
display: flex;
flex-direction: row;
justify-content: space-between;
}
.input-button {
color: var(--text-color);
border: none;
padding: 5px 10px;
border-radius: 6px;
font-weight: 500;
transition: background 0.3s;
}
.connect-button {
background: #667eea;
}
.connect-btn:hover { background: #5a6fd8; }
.delete-button {
background: #e53e3e;
}
.delete-btn:hover { background: #c53030; }
.message-box {
width: 100%;
height: 100%;
margin-left: 20%;
background: #1a202c;
border: 1px solid #4a5568;
border-radius: 8px;
padding: 15px;
overflow-y: auto;
color: white;
font-family: monospace;
white-space: pre-wrap;
box-sizing: border-box;
}

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<!DOCTYPE html>
<html lang="de">
<head>
<meta charset="UTF-8">
<title>Message Monitor</title>
<link rel="stylesheet" href="css/styles.css">
</head>
<body>
<h1>Message Monitor</h1>
<h2>MQTT Kanäle</h2>
<div class="content-area">
<div class="input-field-wrapper">
<div class="input-field">
<div class="channel-header">Kanal 1</div>
<label for="topic1">Topic</label><br>
<input type="text" id="topic1" name="topic1"><br>
<label for="address1">Adresse</label><br>
<input type="text" id="address1" name="address1"><br><br>
<div class="input-button-wrapper">
<button class="input-button connect-button" onclick="connectChannelOne()">Verbinden</button>
<button class="input-button delete-button" onclick="">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-trash-icon lucide-trash"><path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6"/><path d="M3 6h18"/><path d="M8 6V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"/></svg>
</button>
</div>
</div>
<div class="input-field">
<div class="channel-header">Kanal 2</div>
<label for="topic2">Topic</label><br>
<input type="text" id="topic2" name="topic2"><br>
<label for="address2">Adresse</label><br>
<input type="text" id="address2" name="address2"><br><br>
<div class="input-button-wrapper">
<button class="input-button connect-button" onclick="connectChannelTwo()">Verbinden</button>
<button class="input-button delete-button" onclick="">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-trash-icon lucide-trash"><path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6"/><path d="M3 6h18"/><path d="M8 6V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"/></svg>
</button>
</div>
</div>
</div>
<div class="message-box" id="messageBox">
<!-- Messages will appear here -->
</div>
</div>
<script src="js/app.js"></script>
</body>
</html>

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<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<!DOCTYPE html>
<html>
<head>
<title>JSP - Hello World</title>
</head>
<body>
<h1><%= "Hello World!" %>
</h1>
<br/>
<a href="hello-servlet">Hello Servlet</a>
</body>
</html>

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let websocket = null;
const messageBox = document.getElementById('messageBox');
window.addEventListener('load', function() {
connectWebSocket();
});
function connectWebSocket() {
const wsUrl = 'syslog';
console.log("Creating connection to: " + wsUrl)
websocket = new WebSocket(wsUrl);
websocket.onopen = function(event) {
console.log('WebSocket connected successfully');
};
websocket.onmessage = function(event) {
console.log('Message from server:', event.data);
messageBox.textContent += event.data + '\n';
messageBox.scrollTop = messageBox.scrollHeight;
};
}
const Channel = {
ONE: "one",
TWO: "two"
}
async function connectChannelOne() {
await connect(Channel.ONE);
}
async function connectChannelTwo() {
await connect(Channel.TWO);
}
async function connect(channel) {
var data = {};
if (channel === Channel.ONE) {
data = {
topic: document.getElementById('topic1').value,
address: document.getElementById('address1').value,
channel: Channel.ONE
}
}
if (channel === Channel.TWO) {
data = {
topic: document.getElementById('topic2').value,
address: document.getElementById('address2').value,
channel: Channel.TWO
}
}
await sendData(data, channel)
}
async function sendData(data, channel) {
const response = await fetch("webapp", {
method: "POST",
headers: {'Content-Type': 'application/json'},
body: JSON.stringify(data)
})
console.log(response)
const text = await response.text()
console.log(text)
if (response.status !== 200) {
displayError(channel)
return
}
//TODO websocket connection aufbauen
}
function displayError(channel) {
}