App Configuration Update Feature Filter (Azure#27151)

* Updated to support integer and string

* Updated Changelog

* Added Throws message to PercentageFilter javadoc

Author: mrm9084

sdk/appconfiguration/azure-spring-cloud-feature-management/CHANGELOG.md

@@ -2,13 +2,7 @@
 
 ## 2.4.0-beta.1 (Unreleased)
 
-### Features Added
-
-### Breaking Changes
-
-### Bugs Fixed
-
-### Other Changes
+Updated PercentageFilter to support Strings and Doubles
 
 ## 2.3.0 (2022-03-01)
 This release is compatible with Spring Boot 2.5.5-2.5.8, 2.6.0-2.6.2.

sdk/appconfiguration/azure-spring-cloud-feature-management/src/main/java/com/azure/spring/cloud/feature/manager/feature/filters/PercentageFilter.java

@@ -24,14 +24,15 @@ public class PercentageFilter implements FeatureFilter {
      *
      * @param context The feature evaluation context.
      * @return True if the feature is enabled, false otherwise.
+     * @throws NumberFormatException if the percentage filter setting is not a parsable double
      */
     @Override
     public boolean evaluate(FeatureFilterEvaluationContext context) {
-        String value = (String) context.getParameters().get(PERCENTAGE_FILTER_SETTING);
+        String value = String.valueOf(context.getParameters().get(PERCENTAGE_FILTER_SETTING));
 
         boolean result = true;
 
-        if (value == null || Double.parseDouble(value) < 0) {
+        if (value.equals("null") || Double.parseDouble(value) < 0) {
             LOGGER.warn("The {} feature filter does not have a valid {} value for feature {}.",
                 this.getClass().getSimpleName(), PERCENTAGE_FILTER_SETTING, context.getName());
             result = false;

sdk/appconfiguration/azure-spring-cloud-feature-management/src/test/java/com/azure/spring/cloud/feature/manager/feature/filters/PercentageFilterTest.java

@@ -43,6 +43,16 @@ public void errorPercentage() {
         context.setParameters(parameters);
         assertFalse(filter.evaluate(context));
     }
+    
+    @Test
+    public void hundredPercentageInteger() {
+        PercentageFilter filter = new PercentageFilter();
+        FeatureFilterEvaluationContext context = new FeatureFilterEvaluationContext();
+        LinkedHashMap<String, Object> parameters = new LinkedHashMap<String, Object>();
+        parameters.put(PERCENTAGE_FILTER_SETTING, 100);
+        context.setParameters(parameters);
+        assertTrue(filter.evaluate(context));
+    }
 
     @Test
     public void nullPercentage() {