DO-51 Jenkins CI (#48)

* DO-51 Jenkins CI
* DO-51 refactor

Jenkinsfile

@@ -0,0 +1,24 @@
+#!groovy
+
+pipeline {
+    agent {
+        docker { image 'maven:3.5.3-jdk-10-slim' }
+    }
+
+    stages {
+        stage('Test') {
+            environment {
+                CODECOV_TOKEN = '5b1293bb-5536-4f60-bfa3-93b4d15eefeb'
+            }
+            steps {
+                sh 'mvn test'
+            }
+            post {
+                always {
+                    junit(testResults: '**/target/surefire-reports/*.xml', allowEmptyResults: true)
+                    sh 'curl -s https://codecov.io/bash | bash'
+                }
+            }
+        }
+    }
+}

pom.xml

@@ -122,6 +122,26 @@
                 </configuration>
             </plugin>
 
+            <plugin>
+                <groupId>org.jacoco</groupId>
+                <artifactId>jacoco-maven-plugin</artifactId>
+                <version>0.8.1</version>
+                <executions>
+                  <execution>
+                    <goals>
+                      <goal>prepare-agent</goal>
+                    </goals>
+                  </execution>
+                  <execution>
+                    <id>report</id>
+                    <phase>test</phase>
+                    <goals>
+                      <goal>report</goal>
+                    </goals>
+                  </execution>
+                </executions>
+              </plugin>
+
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>