pom.xml

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <parent>
        <!-- Taking care to have all spring dependencies right. -->
        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-parent -->
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.2.2</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <groupId>de.bluewahle</groupId>
    <artifactId>WeatherStation</artifactId>
    <version>1.0-SNAPSHOT</version>
    <name>WeatherStation</name>

    <description>
        Small SB application which provides a prometheus endpoint for configured
        weather data. The origin of the data might be provided by different supplier.
    </description>

    <developers>
        <developer>
            <name>Stefan Schubert</name>
            <email>stefan@bluewhale.de</email>
            <roles>
                <role>Software Engineer</role>
            </roles>
        </developer>
    </developers>

    <properties>
        <spring.boot.version>3.2.2</spring.boot.version>
        <java.version>21</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

        <log4j.version>2.20.0</log4j.version>
        <lombok.version>1.18.30</lombok.version>
        <micrometer.prometheus.version>1.11.4</micrometer.prometheus.version>
        <caffeine.version>3.1.8</caffeine.version>

        <maven.compiler.source>21</maven.compiler.source>
        <maven.compiler.target>21</maven.compiler.target>
        <maven-compiler-plugin.version>3.12.1</maven-compiler-plugin.version>
        <maven-jar-plugin.version>3.3.0</maven-jar-plugin.version>

    </properties>

    <dependencies>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
                <exclusion>
                    <!-- favor log4j2 over logback -->
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <!-- For Logging -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-log4j2</artifactId>
        </dependency>

        <!-- For Caching of Rest-Controller Responses -->
        <dependency>
            <!-- Spring Cache Abstraction -->
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-cache</artifactId>
        </dependency>
        <dependency>
            <!-- Cache Implementation -->
            <!-- https://mvnrepository.com/artifact/com.github.ben-manes.caffeine/caffeine -->
            <groupId>com.github.ben-manes.caffeine</groupId>
            <artifactId>caffeine</artifactId>
            <version>${caffeine.version}</version>
        </dependency>


        <!-- For logging and to spare Boilerplate Code -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>${lombok.version}</version>
            <scope>provided</scope>
            <!-- Only required during build time-->
        </dependency>

    </dependencies>

    <build>
        <finalName>${project.artifactId}</finalName>

        <plugins>
            <!--  Annotation preprocessing -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>${maven-compiler-plugin.version}</version>
                <configuration>
                    <release>${java.version}</release>
                    <encoding>UTF-8</encoding>
                    <annotationProcessorPaths>
                        <!-- Process lombok annotations found in included libraries. -->
                        <path>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                            <version>${lombok.version}</version>
                        </path>
                    </annotationProcessorPaths>
                </configuration>
            </plugin>

            <!--  Standard build configuration -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>${maven-jar-plugin.version}</version>
                <configuration>
                    <archive>
                        <manifest>
                            <addDefaultImplementationEntries>true</addDefaultImplementationEntries>
                            <addDefaultSpecificationEntries>true</addDefaultSpecificationEntries>
                        </manifest>
                        <manifestEntries>
                            <Build-Time>${maven.build.timestamp}</Build-Time>
                            <Build-User>${user.name}</Build-User>
                            <Build-OS>${os.name}</Build-OS>
                            <Build-Label>${project.version}</Build-Label>
                        </manifestEntries>
                    </archive>
                </configuration>
            </plugin>

            <!-- Build a fully executable jar -->
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>${spring.boot.version}</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
                <dependencies/>
                <configuration>
                    <!-- Build a fully executable jar to use it via /etc/init.d
                      see https://docs.spring.io/spring-boot/docs/current/reference/html/deployment-install.html
                    -->
                    <executable>true</executable>
                    <!-- Tuning the required heap size / shrinked after analysing usage via grafana /
                          revisit and readjust if necessary from time to time.

                          Notice: This flag is being ignored by the plugin (Bug! 4/2019)
                          As workaround/solution drop a YOURAPP.conf aside the YOURAPP.jar
                          with the following content:
                          export JAVA_OPTS="-Xmx128m -Xms64m"
                    -->
                    <jvmArguments>-Xmx128m</jvmArguments>
                </configuration>
            </plugin>

            <plugin>
                <!-- This will check for newer version on dependencies which are
                      controlled by version property variables-->
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>versions-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <phase>compile</phase>
                        <goals>
                            <!--
                            <goal>display-dependency-updates</goal>
                            <goal>display-plugin-updates</goal>
                            -->
                            <goal>display-property-updates</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>

    </build>

</project>