SONAR-766 Add exclusions for coverage

Introduce new API to filter measures before they are saved to context
Implement a measure filter for code coverage measures
Add configuration property for coverage exclusions

2 files changed, 14 insertions, 3 deletions

diff --git a/sonar-batch/src/main/java/org/sonar/batch/DefaultSensorContext.java b/sonar-batch/src/main/java/org/sonar/batch/DefaultSensorContext.java
index 57c75b2551f..bc3c0424451 100644
--- a/sonar-batch/src/main/java/org/sonar/batch/DefaultSensorContext.java
+++ b/sonar-batch/src/main/java/org/sonar/batch/DefaultSensorContext.java
@@ -19,6 +19,8 @@
  */
 package org.sonar.batch;
 
+import org.sonar.core.measure.MeasurementFilters;
+
 import org.sonar.api.batch.Event;
 import org.sonar.api.batch.SensorContext;
 import org.sonar.api.batch.SonarIndex;
@@ -40,10 +42,12 @@ public class DefaultSensorContext implements SensorContext {
 
   private SonarIndex index;
   private Project project;
+  private MeasurementFilters filters;
 
-  public DefaultSensorContext(SonarIndex index, Project project) {
+  public DefaultSensorContext(SonarIndex index, Project project, MeasurementFilters filters) {
     this.index = index;
     this.project = project;
+    this.filters = filters;
   }
 
   public Project getProject() {
@@ -115,11 +119,15 @@ public class DefaultSensorContext implements SensorContext {
   }
 
   public Measure saveMeasure(Resource resource, Metric metric, Double value) {
-    return index.addMeasure(resourceOrProject(resource), new Measure(metric, value));
+    return saveMeasure(resource, new Measure(metric, value));
   }
 
   public Measure saveMeasure(Resource resource, Measure measure) {
-    return index.addMeasure(resourceOrProject(resource), measure);
+    if(filters.accept(resource, measure)) {
+      return index.addMeasure(resourceOrProject(resource), measure);
+    } else {
+      return measure;
+    }
   }
 
   public void saveViolation(Violation violation, boolean force) {
diff --git a/sonar-batch/src/main/java/org/sonar/batch/scan/ModuleScanContainer.java b/sonar-batch/src/main/java/org/sonar/batch/scan/ModuleScanContainer.java
index 23a087ce155..0075238fd4e 100644
--- a/sonar-batch/src/main/java/org/sonar/batch/scan/ModuleScanContainer.java
+++ b/sonar-batch/src/main/java/org/sonar/batch/scan/ModuleScanContainer.java
@@ -19,6 +19,8 @@
  */
 package org.sonar.batch.scan;
 
+import org.sonar.core.measure.MeasurementFilters;
+
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.sonar.api.BatchExtension;
@@ -104,6 +106,7 @@ public class ModuleScanContainer extends ComponentContainer {
       DefaultTimeMachine.class,
       ViolationFilters.class,
       IssueFilters.class,
+      MeasurementFilters.class,
       ResourceFilters.class,
       DeprecatedJsonReport.class,
       JsonReport.class,