BAEL-9140 Quarkus MCP code

.gitignore

@@ -29,6 +29,9 @@ out/
 # Mac
 .DS_Store
 
+# Quarkus
+.quarkus/
+
 # Maven
 log/*
 target/

quarkus-modules/pom.xml

@@ -14,26 +14,27 @@
     </parent>
 
     <modules>
+        <module>consume-rest-api</module>
         <module>jfr</module>
         <!-- <module>mongo-db</module> --> <!-- JAVA-42048 -->
         <module>quarkus</module>
         <module>quarkus-citrus</module>
         <module>quarkus-clientbasicauth</module>
         <module>quarkus-extension</module>
         <module>quarkus-elasticsearch</module>
-        <module>quarkus-jandex</module>
-        <module>quarkus-vs-springboot</module>
         <module>quarkus-funqy</module>
-        <module>quarkus-kogito</module>
-        <module>quarkus-testcontainers</module>
-        <module>consume-rest-api</module>
-        <module>quarkus-virtual-threads</module>
         <!--<module>quarkus-hibernate-reactive</module>--> <!--moved to heavy profile-->
+        <module>quarkus-jandex</module>
+        <module>quarkus-kogito</module>
         <module>quarkus-langchain4j</module>
-        <!-- <module>quarkus-rbac</module> --> <!-- JAVA-42048 -->
-        <module>quarkus-websockets-next</module>
         <module>quarkus-management-interface</module>
+        <module>quarkus-mcp-langchain</module>
         <module>quarkus-panache</module>
+        <!-- <module>quarkus-rbac</module> --> <!-- JAVA-42048 -->
+        <module>quarkus-testcontainers</module>
+        <module>quarkus-virtual-threads</module>
+        <module>quarkus-vs-springboot</module>
+        <module>quarkus-websockets-next</module>
     </modules>
 
 </project>

quarkus-modules/quarkus-kogito/pom.xml

@@ -175,6 +175,7 @@
         <mapstruct.version>1.6.3</mapstruct.version>
         <!-- currently, the only version supporting Quarkus 3 -->
         <kogito.version>2.44.0.Alpha</kogito.version>
+        <maven.compiler.release>17</maven.compiler.release>
     </properties>
 
 </project>

quarkus-modules/quarkus-mcp-langchain/pom.xml

@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         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>
+    <artifactId>quarkus-mcp-langchain</artifactId>
+    <name>quarkus-mcp-langchain</name>
+    <packaging>pom</packaging>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>quarkus-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <modules>
+        <module>quarkus-mcp-server</module>
+        <module>quarkus-mcp-client</module>
+    </modules>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>io.quarkus.platform</groupId>
+                <artifactId>quarkus-bom</artifactId>
+                <version>${quarkus.platform.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <dependencies>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-arc</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-junit5</artifactId>
+            <scope>test</scope>
+        </dependency>
+     </dependencies>
+
+     <properties>
+        <maven.compiler.release>17</maven.compiler.release>
+        <compiler-plugin.version>3.14.0</compiler-plugin.version>
+        <quarkus.platform.version>3.22.3</quarkus.platform.version>
+        <skipITs>true</skipITs>
+        <surefire-plugin.version>3.5.2</surefire-plugin.version>
+        <quarkus-langchain4j.version>1.0.0.CR2</quarkus-langchain4j.version>
+        <junit-jupiter.version>5.12.2</junit-jupiter.version>
+    </properties>
+
+</project>

quarkus-modules/quarkus-mcp-langchain/quarkus-mcp-client/pom.xml

@@ -0,0 +1,103 @@
+<?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>
+    <artifactId>quarkus-mcp-client</artifactId>
+    <name>quarkus-mcp-client</name>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>quarkus-mcp-langchain</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>    
+
+    <dependencies>
+        <dependency>
+            <groupId>io.quarkiverse.langchain4j</groupId>
+            <artifactId>quarkus-langchain4j-mcp</artifactId>
+            <version>${quarkus-langchain4j.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkiverse.langchain4j</groupId>
+            <artifactId>quarkus-langchain4j-ollama</artifactId>
+            <version>${quarkus-langchain4j.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-vertx-http</artifactId>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>io.quarkus.platform</groupId>
+                <artifactId>quarkus-maven-plugin</artifactId>
+                <version>${quarkus.platform.version}</version>
+                <extensions>true</extensions>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>build</goal>
+                            <goal>generate-code</goal>
+                            <goal>generate-code-tests</goal>
+                            <goal>native-image-agent</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${compiler-plugin.version}</version>
+                <configuration>
+                    <parameters>true</parameters>
+                </configuration>
+            </plugin>
+            <plugin>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>${surefire-plugin.version}</version>
+                <configuration>
+                    <systemPropertyVariables>
+                        <java.util.logging.manager>org.jboss.logmanager.LogManager</java.util.logging.manager>
+                        <maven.home>${maven.home}</maven.home>
+                    </systemPropertyVariables>
+                </configuration>
+            </plugin>
+            <plugin>
+                <artifactId>maven-failsafe-plugin</artifactId>
+                <version>${surefire-plugin.version}</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>integration-test</goal>
+                            <goal>verify</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <systemPropertyVariables>
+                        <native.image.path>${project.build.directory}/${project.build.finalName}-runner</native.image.path>
+                        <java.util.logging.manager>org.jboss.logmanager.LogManager</java.util.logging.manager>
+                        <maven.home>${maven.home}</maven.home>
+                    </systemPropertyVariables>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <profiles>
+        <profile>
+            <id>native</id>
+            <activation>
+                <property>
+                    <name>native</name>
+                </property>
+            </activation>
+            <properties>
+                <skipITs>false</skipITs>
+                <quarkus.native.enabled>true</quarkus.native.enabled>
+            </properties>
+        </profile>
+    </profiles>
+</project>

quarkus-modules/quarkus-mcp-langchain/quarkus-mcp-client/src/main/docker/Dockerfile.jvm

@@ -0,0 +1,98 @@
+####
+# This Dockerfile is used in order to build a container that runs the Quarkus application in JVM mode
+#
+# Before building the container image run:
+#
+# ./mvnw package
+#
+# Then, build the image with:
+#
+# docker build -f src/main/docker/Dockerfile.jvm -t quarkus/quarkus-mcp-client-jvm .
+#
+# Then run the container using:
+#
+# docker run -i --rm -p 8080:8080 quarkus/quarkus-mcp-client-jvm
+#
+# If you want to include the debug port into your docker image
+# you will have to expose the debug port (default 5005 being the default) like this :  EXPOSE 8080 5005.
+# Additionally you will have to set -e JAVA_DEBUG=true and -e JAVA_DEBUG_PORT=*:5005
+# when running the container
+#
+# Then run the container using :
+#
+# docker run -i --rm -p 8080:8080 quarkus/quarkus-mcp-client-jvm
+#
+# This image uses the `run-java.sh` script to run the application.
+# This scripts computes the command line to execute your Java application, and
+# includes memory/GC tuning.
+# You can configure the behavior using the following environment properties:
+# - JAVA_OPTS: JVM options passed to the `java` command (example: "-verbose:class") - Be aware that this will override
+# the default JVM options, use `JAVA_OPTS_APPEND` to append options
+# - JAVA_OPTS_APPEND: User specified Java options to be appended to generated options
+#   in JAVA_OPTS (example: "-Dsome.property=foo")
+# - JAVA_MAX_MEM_RATIO: Is used when no `-Xmx` option is given in JAVA_OPTS. This is
+#   used to calculate a default maximal heap memory based on a containers restriction.
+#   If used in a container without any memory constraints for the container then this
+#   option has no effect. If there is a memory constraint then `-Xmx` is set to a ratio
+#   of the container available memory as set here. The default is `50` which means 50%
+#   of the available memory is used as an upper boundary. You can skip this mechanism by
+#   setting this value to `0` in which case no `-Xmx` option is added.
+# - JAVA_INITIAL_MEM_RATIO: Is used when no `-Xms` option is given in JAVA_OPTS. This
+#   is used to calculate a default initial heap memory based on the maximum heap memory.
+#   If used in a container without any memory constraints for the container then this
+#   option has no effect. If there is a memory constraint then `-Xms` is set to a ratio
+#   of the `-Xmx` memory as set here. The default is `25` which means 25% of the `-Xmx`
+#   is used as the initial heap size. You can skip this mechanism by setting this value
+#   to `0` in which case no `-Xms` option is added (example: "25")
+# - JAVA_MAX_INITIAL_MEM: Is used when no `-Xms` option is given in JAVA_OPTS.
+#   This is used to calculate the maximum value of the initial heap memory. If used in
+#   a container without any memory constraints for the container then this option has
+#   no effect. If there is a memory constraint then `-Xms` is limited to the value set
+#   here. The default is 4096MB which means the calculated value of `-Xms` never will
+#   be greater than 4096MB. The value of this variable is expressed in MB (example: "4096")
+# - JAVA_DIAGNOSTICS: Set this to get some diagnostics information to standard output
+#   when things are happening. This option, if set to true, will set
+#  `-XX:+UnlockDiagnosticVMOptions`. Disabled by default (example: "true").
+# - JAVA_DEBUG: If set remote debugging will be switched on. Disabled by default (example:
+#    true").
+# - JAVA_DEBUG_PORT: Port used for remote debugging. Defaults to 5005 (example: "8787").
+# - CONTAINER_CORE_LIMIT: A calculated core limit as described in
+#   https://www.kernel.org/doc/Documentation/scheduler/sched-bwc.txt. (example: "2")
+# - CONTAINER_MAX_MEMORY: Memory limit given to the container (example: "1024").
+# - GC_MIN_HEAP_FREE_RATIO: Minimum percentage of heap free after GC to avoid expansion.
+#   (example: "20")
+# - GC_MAX_HEAP_FREE_RATIO: Maximum percentage of heap free after GC to avoid shrinking.
+#   (example: "40")
+# - GC_TIME_RATIO: Specifies the ratio of the time spent outside the garbage collection.
+#   (example: "4")
+# - GC_ADAPTIVE_SIZE_POLICY_WEIGHT: The weighting given to the current GC time versus
+#   previous GC times. (example: "90")
+# - GC_METASPACE_SIZE: The initial metaspace size. (example: "20")
+# - GC_MAX_METASPACE_SIZE: The maximum metaspace size. (example: "100")
+# - GC_CONTAINER_OPTIONS: Specify Java GC to use. The value of this variable should
+#   contain the necessary JRE command-line options to specify the required GC, which
+#   will override the default of `-XX:+UseParallelGC` (example: -XX:+UseG1GC).
+# - HTTPS_PROXY: The location of the https proxy. (example: "[email protected]:8080")
+# - HTTP_PROXY: The location of the http proxy. (example: "[email protected]:8080")
+# - NO_PROXY: A comma separated lists of hosts, IP addresses or domains that can be
+#   accessed directly. (example: "foo.example.com,bar.example.com")
+#
+###
+FROM registry.access.redhat.com/ubi9/openjdk-21:1.21
+
+ENV LANGUAGE='en_US:en'
+
+
+# We make four distinct layers so if there are application changes the library layers can be re-used
+COPY --chown=185 target/quarkus-app/lib/ /deployments/lib/
+COPY --chown=185 target/quarkus-app/*.jar /deployments/
+COPY --chown=185 target/quarkus-app/app/ /deployments/app/
+COPY --chown=185 target/quarkus-app/quarkus/ /deployments/quarkus/
+
+EXPOSE 8080
+USER 185
+ENV JAVA_OPTS_APPEND="-Dquarkus.http.host=0.0.0.0 -Djava.util.logging.manager=org.jboss.logmanager.LogManager"
+ENV JAVA_APP_JAR="/deployments/quarkus-run.jar"
+
+ENTRYPOINT [ "/opt/jboss/container/java/run/run-java.sh" ]
+