Added method for loading features from custom xml file #IDEA-171797

platform/platform-api/src/com/intellij/featureStatistics/ProductivityFeaturesProvider.java

@@ -16,6 +16,10 @@
 package com.intellij.featureStatistics;
 
 import com.intellij.openapi.extensions.ExtensionPointName;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Collection;
+import java.util.Collections;
 
 /**
  * User: anna
@@ -29,4 +33,12 @@ public abstract class ProductivityFeaturesProvider {
   public abstract GroupDescriptor[] getGroupDescriptors();
 
   public abstract ApplicabilityFilter[] getApplicabilityFilters();
+
+  /**
+   * @return list of xml file urls with features configurations
+   */
+  @NotNull
+  public Collection<String> getXmlFilesUrls() {
+    return Collections.emptyList();
+  }
 }

platform/platform-impl/src/com/intellij/featureStatistics/ProductivityFeaturesRegistryImpl.java

@@ -85,6 +85,16 @@ public class ProductivityFeaturesRegistryImpl extends ProductivityFeaturesRegist
 
   private void loadFeaturesFromProviders(ProductivityFeaturesProvider[] providers) {
     for (ProductivityFeaturesProvider provider : providers) {
+
+      for (String xmlUrl : provider.getXmlFilesUrls()) {
+        try {
+          readFromXml(xmlUrl);
+        }
+        catch (Exception e) {
+          LOG.error("Error while reading " + xmlUrl + " from " + provider + ": " + e.getMessage());
+        }
+      }
+
       final GroupDescriptor[] groupDescriptors = provider.getGroupDescriptors();
       if (groupDescriptors != null) {
         for (GroupDescriptor groupDescriptor : groupDescriptors) {