Add exposurePercent to ExperimentValues

Author: Varun Rathore

src/main/java/com/google/firebase/remoteconfig/ParameterValue.java

@@ -85,8 +85,8 @@ public static PersonalizationValue ofPersonalization(String personalizationId) {
    * @return A {@link ParameterValue.ExperimentValue} instance.
    */
   public static ExperimentValue ofExperiment(String experimentId,
-                                   List<ExperimentVariantValue> variantValues) {
-    return new ExperimentValue(experimentId, variantValues);
+                                   List<ExperimentVariantValue> variantValues, Double exposurePercent) {
+    return new ExperimentValue(experimentId, variantValues, exposurePercent);
   }
 
   abstract ParameterValueResponse toParameterValueResponse();
@@ -119,7 +119,7 @@ static ParameterValue fromParameterValueResponse(
           .map(evv -> new ExperimentVariantValue(
             evv.getVariantId(),  evv.getValue(), evv.getNoChange()))
           .collect(toList());
-      return ParameterValue.ofExperiment(ev.getExperimentId(), variantValues);
+      return ParameterValue.ofExperiment(ev.getExperimentId(), variantValues, ev.getExposurePercent());
     }
     return ParameterValue.of(parameterValueResponse.getValue());
   }
@@ -400,10 +400,13 @@ public int hashCode() {
   public static final class ExperimentValue extends ParameterValue {
     private final String experimentId;
     private final List<ExperimentVariantValue> variantValues;
+    private final Double exposurePercent;
 
-    private ExperimentValue(String experimentId, List<ExperimentVariantValue> variantValues) {
+
+    private ExperimentValue(String experimentId, List<ExperimentVariantValue> variantValues, Double exposurePercent) {
       this.experimentId = experimentId;
       this.variantValues = variantValues;
+      this.exposurePercent = exposurePercent;
     }
 
     /**

src/main/java/com/google/firebase/remoteconfig/internal/TemplateResponse.java

@@ -21,6 +21,8 @@
 import java.util.List;
 import java.util.Map;
 
+import org.checkerframework.checker.units.qual.K;
+
 /**
  * The Data Transfer Object for parsing Remote Config template responses from the
  * Remote Config service.
@@ -288,6 +290,9 @@ public static final class ExperimentValueResponse {
     @Key("variantValue")
     private List<ExperimentVariantValueResponse> experimentVariantValues;
 
+    @Key("exposurePercent")
+    private Double exposurePercent;
+
     public String getExperimentId() {
       return experimentId;
     }
@@ -296,6 +301,11 @@ public List<ExperimentVariantValueResponse> getExperimentVariantValues() {
       return experimentVariantValues;
     }
 
+    public Double getExposurePercent() {
+      return exposurePercent;
+    }
+
+
     public ExperimentValueResponse setExperimentId(String experimentId) {
       this.experimentId = experimentId;
       return this;
@@ -306,6 +316,11 @@ public ExperimentValueResponse setExperimentVariantValues(
       this.experimentVariantValues = experimentVariantValues;
       return this;
     }
+
+    public ExperimentValueResponse setExposurePercent(Double exposurePercent) {
+      this.exposurePercent = exposurePercent;
+      return this;
+    }
   }
 
   /**

src/test/java/com/google/firebase/remoteconfig/ParameterValueTest.java

@@ -64,7 +64,7 @@ public void testCreateExperimentValue() {
             ParameterValue.ofExperiment("experiment_1", ImmutableList.of(
                     ExperimentVariantValue.of("variant_1", "value_1"),
                     ExperimentVariantValue.ofNoChange("variant_2")
-            ));
+            ), 10.0);
 
     assertEquals("experiment_1", parameterValue.getExperimentId());
     assertEquals(2, parameterValue.getExperimentVariantValues().size());
@@ -116,19 +116,19 @@ public void testEquality() {
     ParameterValue.ExperimentValue experimentValueOne =
             ParameterValue.ofExperiment("experiment_1", ImmutableList.of(
                     ExperimentVariantValue.of("variant_1", "value_1")
-            ));
+            ), 10.0);
     ParameterValue.ExperimentValue experimentValueTwo =
             ParameterValue.ofExperiment("experiment_1", ImmutableList.of(
                     ExperimentVariantValue.of("variant_1", "value_1")
-            ));
+            ), 10.0);
     ParameterValue.ExperimentValue experimentValueThree =
             ParameterValue.ofExperiment("experiment_2", ImmutableList.of(
                     ExperimentVariantValue.of("variant_1", "value_1")
-            ));
+            ), 10.0);
     ParameterValue.ExperimentValue experimentValueFour =
             ParameterValue.ofExperiment("experiment_1", ImmutableList.of(
                     ExperimentVariantValue.of("variant_2", "value_2")
-            ));
+            ), 10.0);
 
     assertEquals(experimentValueOne, experimentValueTwo);
     assertNotEquals(experimentValueOne, experimentValueThree);