Merge branch 'feature-application-graph' into 'master'

Feature application graph

See merge request !12

src/main/java/org/activeeon/morphemic/PAGateway.java

@@ -143,6 +143,65 @@ public class PAGateway {
         return parentTasks;
     }
 
+
+    /**
+     *
+     * Return the dot format of the application's graph
+     *
+     * @param jobId The ID of the job
+     * @return The graph in dot format
+     */
+    public String getGraphInDotFormat(String jobId) {
+
+        // StringBuilder used to write the syntax of the application graph in dot format
+        StringBuilder dotGraphSyntax = new StringBuilder();
+
+        // Get the job by jobId from the DB
+        Job applicationJob = EntityManagerHelper.find(Job.class, jobId);
+
+        LOGGER.debug("Dot graph creation for the job: "+applicationJob.toString());
+
+        // Write the dot file header
+        dotGraphSyntax.append("digraph g {\n");
+
+        // Get the job tasks
+        LinkedList<Task> jobTasks = new LinkedList<>(applicationJob.getTasks());
+
+        // Add the mandatory connections between the tasks
+        for(Task task : jobTasks){
+
+            // Write the dot representation of the task
+            dotGraphSyntax.append(task.getName() + ";\n");
+
+            // Get the current task name
+            String childTask = task.getName();
+
+            // Get the list of the parent tasks
+            List<String> parentTasks = task.getParentTasks();
+
+            // Check for Mandatory connections
+            // If the list is empty there are no mandatory connections
+            for (String parentTask : parentTasks) {
+
+                // Write the dot syntax of the connection between the two tasks
+                dotGraphSyntax.append(parentTask
+                        + "->"
+                        + childTask
+                        + " [fillcolor=red, fontcolor=red, color=red]"
+                        + ";");
+
+                dotGraphSyntax.append("\n");
+            }
+        }
+
+        // Write the dot file end character
+        dotGraphSyntax.append("}\n");
+
+        LOGGER.debug("Dot graph created");
+
+        return dotGraphSyntax.toString();
+    }
+
     /**
      * Create a ProActive job skeleton
      * @param job A job skeleton definition in JSON format

src/main/java/org/activeeon/morphemic/model/Job.java

 package org.activeeon.morphemic.model;
 
 import lombok.*;
+import org.codehaus.jackson.map.ObjectMapper;
+import org.codehaus.jackson.map.ObjectWriter;
 
 import javax.persistence.*;
+import java.io.IOException;
 import java.io.Serializable;
 import java.util.List;
 import java.util.Map;
@@ -37,4 +40,15 @@ public class Job implements Serializable {
         return tasks.stream()
                 .filter(task -> task.getName().equals(taskName)).findAny().orElse(null);
     }
+
+    /**
+     *
+     * Transform a job into JSON format
+     *
+     * @return the JSON representation of the job
+     */
+    public String getJobInJson() throws IOException{
+        ObjectWriter ow = new ObjectMapper().writer().withDefaultPrettyPrinter();
+        return ow.writeValueAsString(this);
+    }
 }