[JENKINS-57877] - A Test Step to confirm the Builds have been Promoted.

pom.xml

@@ -76,6 +76,30 @@
   </build>
 
   <dependencies>
+    <dependency>
+      <groupId>org.jenkins-ci.plugins.workflow</groupId>
+      <artifactId>workflow-step-api</artifactId>
+      <version>2.3</version>
+      <optional>true</optional>
+    </dependency>
+    <dependency>
+      <groupId>org.jenkins-ci.plugins.workflow</groupId>
+      <artifactId>workflow-support</artifactId>
+      <version>2.6</version>
+      <optional>true</optional>
+    </dependency>
+    <dependency>
+      <groupId>org.jenkins-ci.plugins.workflow</groupId>
+      <artifactId>workflow-cps</artifactId>
+      <version>2.9</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.jenkins-ci.plugins.workflow</groupId>
+      <artifactId>workflow-job</artifactId>
+      <version>2.9</version>
+      <scope>test</scope>
+    </dependency>
     <dependency>
       <groupId>org.jenkins-ci.main</groupId>
       <artifactId>maven-plugin</artifactId>

src/main/java/hudson/plugins/promoted_builds/AddPromotionBadgeStep.java

@@ -0,0 +1,94 @@
+package hudson.plugins.promoted_builds;
+
+import com.google.common.collect.ImmutableSet;
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
+import hudson.Extension;
+import hudson.model.Run;
+import hudson.model.TaskListener;
+import org.apache.commons.lang.StringUtils;
+import org.jenkinsci.plugins.workflow.steps.*;
+import org.kohsuke.stapler.DataBoundConstructor;
+
+import javax.annotation.CheckForNull;
+import javax.annotation.Nonnull;
+import java.util.Set;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+// A test step to check whether the promotion was successful or not.
+// Later this step would be replaced by triggering a new "Promotion job"
+public class AddPromotionBadgeStep extends Step{
+
+    private static final Logger LOGGER = Logger.getLogger("The Job was successfully Promoted");
+
+    // "job" AND "buildNumber" will be passed from other promotion Conditions
+    @CheckForNull
+    private String job;
+    private int buildNumber;
+
+    @DataBoundConstructor
+    public AddPromotionBadgeStep(String job, int buildNumber){
+        this.job = StringUtils.trimToNull(job);
+        this.buildNumber = buildNumber;
+    }
+
+    public String getJob(){
+        return job;
+    }
+    public void setJob(String job){
+        this.job = StringUtils.trimToNull(job);
+    }
+    public int getBuildNumber(){
+        return buildNumber;
+    }
+    public void setBuildNumber(int buildNumber){
+        this.buildNumber = buildNumber;
+    }
+
+    @Override
+    public StepExecution start(StepContext context) throws Exception{
+        return new Execution(context,getJob(),getBuildNumber());
+    }
+
+    @Extension
+    public static class DescriptorImpl extends StepDescriptor{
+
+        @Override
+        public String getFunctionName(){
+            return "addTestBadge";
+        }
+        @Override
+        public String getDisplayName(){
+            return "Add Test Promotion Step";
+        }
+
+        @Override
+        public Set<Class<?>> getRequiredContext(){
+            return ImmutableSet.of(Run.class,TaskListener.class);
+        }
+    }
+
+    public static class Execution extends AbstractSynchronousStepExecution<Void>{
+
+        //Escapes Serialization
+        private transient final String job;
+        private transient final int buildNumber;
+
+        Execution(@Nonnull StepContext context,@Nonnull String job,@Nonnull int buildNumber){
+
+
+                super(context);
+                this.job = StringUtils.trimToNull(job);
+                this.buildNumber = buildNumber;
+        }
+
+        @Override
+        protected Void run() throws Exception{
+            LOGGER.log(Level.FINER, "A dummy Step for Spot Promotion Check" );
+            return null;
+        }
+
+        private static final long serialVersionUID = 1L;
+    }
+
+}