Merge branch 'dkolepp/ch9s6' feat(ch9s6): add micro-java project

Dan K

2019-07-19 1dc1e7e1dd3fcfdf784c0bb62c330bc32c54b84d

Merge branch 'dkolepp/ch9s6'
feat(ch9s6): add micro-java project

 micro-java/pom.xml

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@@ -0,0 +1,96 @@
<?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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.redhat.training.openshift</groupId>
  <artifactId>hello</artifactId>
  <version>1.0</version>
  <packaging>war</packaging>
  <name>Red Hat Training Hello Java app</name>
  <description>Hello microservice using Thorntail</description>

  <properties>
    <!-- Explicitly declaring the source encoding eliminates the following
      message: -->
    <!-- [WARNING] Using platform encoding (UTF-8 actually) to copy filtered
      resources, i.e. build is platform dependent! -->
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <failOnMissingWebXml>false</failOnMissingWebXml>

    <!-- Thorntail dependency versions -->
    <version.thorntail>2.4.0.Final</version.thorntail>

    <!-- other plugin versions -->
    <version.compiler.plugin>3.1</version.compiler.plugin>
    <version.surefire.plugin>2.16</version.surefire.plugin>
    <version.war.plugin>2.5</version.war.plugin>
    <version.fabric8.plugin>4.1.0</version.fabric8.plugin>

    <!-- maven-compiler-plugin -->
    <maven.compiler.target>1.8</maven.compiler.target>
    <maven.compiler.source>1.8</maven.compiler.source>
  </properties>


  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>io.thorntail</groupId>
        <artifactId>bom-all</artifactId>
        <version>${version.thorntail}</version>
        <scope>import</scope>
        <type>pom</type>
      </dependency>
    </dependencies>
  </dependencyManagement>

  <dependencies>
    <dependency>
      <groupId>io.thorntail</groupId>
      <artifactId>cdi</artifactId>
    </dependency>
    <dependency>
      <groupId>io.thorntail</groupId>
      <artifactId>jaxrs</artifactId>
    </dependency>
  </dependencies>

  <build>
    <!-- Maven will append the version to the finalName (which is the name
         given to the generated war, and hence the context root) -->
    <finalName>hello</finalName>
    <plugins>
      <!-- The Thorntail Maven plugin creates an uber jar -->
      <!-- To use, run: mvn thorntail:run -->
      <plugin>
        <groupId>io.thorntail</groupId>
        <artifactId>thorntail-maven-plugin</artifactId>
        <version>${version.thorntail}</version>
        <executions>
          <execution>
            <goals>
              <goal>package</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
      <plugin>
        <groupId>io.fabric8</groupId>
        <artifactId>fabric8-maven-plugin</artifactId>
        <version>${version.fabric8.plugin}</version>
        <executions>
          <execution>
            <id>fmp</id>
            <goals>
              <goal>resource</goal>
              <goal>build</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>

</project>

 micro-java/src/main/fabric8/cm.yml

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apiVersion: v1
kind: ConfigMap
metadata:
  name: env-config 
data:
  APP_MSG:
 

 micro-java/src/main/fabric8/deployment.yml

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spec:
  template:
    spec:
      containers:
        - envFrom:
            - configMapRef:
                name: env-config



 micro-java/src/main/java/com/redhat/training/openshift/hello/HelloResource.java

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package com.redhat.training.openshift.hello;

import javax.inject.Inject;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;

@Path("/")
public class HelloResource {

    @GET
    @Path("/hello")
    @Produces("text/plain")
    public String hello() {
        String hostname = System.getenv().getOrDefault("HOSTNAME", "unknown");
          String message = System.getenv().getOrDefault("APP_MSG", null);
          String response = "";

          if (message == null) {
            response = "Hello world from host "+hostname+"\n";
          } else {
            response = "Hello world from host ["+hostname+"].";
            response += "Message received = "+message+"\n";
        }
        return response;
    }
}

 micro-java/src/main/java/com/redhat/training/openshift/hello/JaxRsActivator.java

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package com.redhat.training.openshift.hello;

import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;

@ApplicationPath("/api")
public class JaxRsActivator extends Application {
}