Adding initial version of a FlogSensor

pom.xml

@@ -45,9 +45,9 @@
     </dependencies>
 
     <properties>
-        <sonar.version>2.7</sonar.version>
+        <sonar.version>3.4.1</sonar.version>
         <sonar.pluginClass>com.pica.sonarplugins.ruby.RubyPlugin</sonar.pluginClass>
-        <sonar.runtimeVersion>2.7</sonar.runtimeVersion>
+        <sonar.runtimeVersion>3.4.1</sonar.runtimeVersion>
         <sonar.pluginName>Ruby</sonar.pluginName>
     </properties>
 

src/main/java/com/centralway/rubymetrics/FlogSensor.java

@@ -0,0 +1,67 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.centralway.rubymetrics;
+
+import com.pica.sonarplugins.ruby.core.RubyFile;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.sonar.api.batch.Sensor;
+import org.sonar.api.batch.SensorContext;
+import org.sonar.api.measures.CoreMetrics;
+import org.sonar.api.resources.Project;
+import org.sonar.api.resources.ProjectFileSystem;
+import org.sonar.api.resources.File;
+
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.io.LineIterator;
+import org.apache.commons.lang.StringUtils;
+
+import java.util.List;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.io.IOException;
+import java.util.Map;
+
+
+/**
+ *
+ * @author martin.naumann
+ */
+public class FlogSensor implements Sensor {
+
+    private static final Logger LOG = LoggerFactory.getLogger(FlogSensor.class);
+
+    public boolean shouldExecuteOnProject(Project project) {
+        return true;
+    }
+
+    public void analyse(Project project, SensorContext context) {
+        try {
+            processReport(project, context);
+        } catch(IOException e) {
+            LOG.error("Flog report could not be parsed properly!");
+            LOG.error(e.getMessage());
+        }
+    }
+
+    private void processReport(Project project, SensorContext context) throws IOException {
+        LineIterator lineIter = FileUtils.lineIterator(new java.io.File("flog.txt"));
+
+        context.saveMeasure(project, CoreMetrics.FUNCTION_COMPLEXITY, getAverageScorePerMethod(lineIter));
+    }
+
+    private double getAverageScorePerMethod(LineIterator lineIter) {
+        lineIter.nextLine(); // Skip the total score
+        Double averagePerMethod = Double.parseDouble(lineIter.nextLine().split(":")[0]);
+        lineIter.nextLine(); //There is an empty line that we wanna skip.    
+        return averagePerMethod;
+    }    
+
+    @Override
+    public String toString() {
+        return "Ruby Flog report sensor";
+    }    
+}

src/main/java/com/pica/sonarplugins/ruby/RubyPlugin.java

@@ -4,6 +4,7 @@
 import com.pica.sonarplugins.ruby.core.RubySourceCodeColorizer;
 import com.pica.sonarplugins.ruby.core.RubySourceImporter;
 import com.pica.sonarplugins.ruby.rcov.RcovSensor;
+import com.centralway.rubymetrics.FlogSensor;
 import org.sonar.api.Plugin;
 import org.sonar.api.Properties;
 
@@ -32,7 +33,8 @@ public List getExtensions() {
                 RubySensor.class,
                 RubySourceImporter.class,
                 RubySourceCodeColorizer.class,
-                RcovSensor.class
+                RcovSensor.class,
+                FlogSensor.class
         );
     }