feat: inline user attribute removal in onRemoveUserAttribute

android-kit-base/src/androidTest/kotlin/com/mparticle/kits/DataplanBlockingUserTests.kt

@@ -152,7 +152,7 @@ class DataplanBlockingUserTests : BaseKitOptionsTest() {
             // make sure these are the attributes that are being removed
             count++
         }
-        attributeListenerKitKit.removeUserAttribute = {
+        attributeListenerKitKit.removeUserAttributeListener = {
             assertTrue(allowedAttributes.containsKey(it))
             assertFalse(blockedAttributes.containsKey(it))
             count++

android-kit-base/src/androidTest/kotlin/com/mparticle/kits/testkits/AttributeListenerTestKit.kt

@@ -1,6 +1,7 @@
 package com.mparticle.kits.testkits
 
 import com.mparticle.MParticle
+import com.mparticle.kits.FilteredMParticleUser
 import com.mparticle.kits.KitIntegration.AttributeListener
 import com.mparticle.kits.KitIntegration.LogoutListener
 import com.mparticle.kits.ReportingMessage
@@ -15,7 +16,7 @@ open class AttributeListenerTestKit :
     var supportsAttributeLists: (() -> Boolean)? = null
     var setAllUserAttributes: ((userAttributes: Map<String, String>?, userAttributeLists: Map<String, List<String>>?) -> Unit)? =
         null
-    var removeUserAttribute: ((key: String?) -> Unit)? = null
+    var removeUserAttributeListener: ((key: String?) -> Unit)? = null
     var setUserIdentity: ((identityType: MParticle.IdentityType?, identity: String?) -> Unit)? =
         null
     var removeUserIdentity: ((identityType: MParticle.IdentityType?) -> Unit)? = null
@@ -61,8 +62,11 @@ open class AttributeListenerTestKit :
         onIdentityReceived?.invoke(identityType, null)
     }
 
-    override fun removeUserAttribute(key: String) {
-        removeUserAttribute?.invoke(key)
+    override fun onRemoveUserAttribute(
+        key: String,
+        user: FilteredMParticleUser,
+    ) {
+        removeUserAttributeListener?.invoke(key)
         onAttributeReceived?.invoke(key, null)
     }
 

android-kit-base/src/main/java/com/mparticle/kits/KitIntegration.java

@@ -361,29 +361,41 @@ public interface LogoutListener {
     }
 
     /**
-     * Kits should implement this interface when their underlying service has the notion
-     * of a user with attributes.
+     * Temporary shared contract used while {@link AttributeListener} behavior is migrated to
+     * {@link UserAttributeListener}. Factoring out common API surface lets the SDK land incremental changes
+     * and smaller pull requests instead of a single large refactor.
+     * <p>
+     * Kits implement {@link AttributeListener} and/or {@link UserAttributeListener}; they do not implement this
+     * type directly.
      */
     @Deprecated
-    public interface AttributeListener {
-
-        void setUserAttribute(String attributeKey, String attributeValue);
-
-        void setUserAttributeList(String attributeKey, List<String> attributeValueList);
+    public interface BaseAttributeListener {
 
         /**
-         * Indicate to the mParticle Kit framework if this AttributeListener supports attribute-values as lists.
+         * Indicate to the mParticle Kit framework if this listener supports attribute-values as lists.
          * <p>
-         * If an AttributeListener returns false, the setUserAttributeList method will never be called. Instead, setUserAttribute
-         * will be called with the attribute-value lists combined as a csv.
+         * If false, list-specific APIs are not used; values are passed via scalar/csv paths instead.
          *
-         * @return true if this AttributeListener supports attribute values as lists.
+         * @return true if this listener supports attribute values as lists.
          */
         boolean supportsAttributeLists();
 
-        void setAllUserAttributes(Map<String, String> userAttributes, Map<String, List<String>> userAttributeLists);
+        /**
+         * Called when a user attribute is removed for the current user.
+         *
+         * @param key  attribute key
+         * @param user filtered user context for this kit
+         */
+        void onRemoveUserAttribute(String key, FilteredMParticleUser user);
+    }
 
-        void removeUserAttribute(String key);
+    public interface AttributeListener extends BaseAttributeListener {
+
+        void setUserAttribute(String attributeKey, String attributeValue);
+
+        void setUserAttributeList(String attributeKey, List<String> attributeValueList);
+
+        void setAllUserAttributes(Map<String, String> userAttributes, Map<String, List<String>> userAttributeLists);
 
         void setUserIdentity(MParticle.IdentityType identityType, String identity);
 
@@ -540,12 +552,10 @@ public interface IdentityListener {
 
     }
 
-    public interface UserAttributeListener {
+    public interface UserAttributeListener extends BaseAttributeListener {
 
         void onIncrementUserAttribute(String key, Number incrementedBy, String value, FilteredMParticleUser user);
 
-        void onRemoveUserAttribute(String key, FilteredMParticleUser user);
-
         void onSetUserAttribute(String key, Object value, FilteredMParticleUser user);
 
         void onSetUserTag(String key, FilteredMParticleUser user);
@@ -554,8 +564,6 @@ public interface UserAttributeListener {
 
         void onSetAllUserAttributes(Map<String, String> userAttributes, Map<String, List<String>> userAttributeLists, FilteredMParticleUser user);
 
-        boolean supportsAttributeLists();
-
         void onConsentStateUpdated(ConsentState oldState, ConsentState newState, FilteredMParticleUser user);
     }
 

android-kit-base/src/main/java/com/mparticle/kits/KitManagerImpl.java

@@ -605,8 +605,9 @@ public void onUserAttributesReceived(Map<String, String> userAttributes, Map<Str
                             userAttributes);
                     Map<String, List<String>> filteredAttributeLists = (Map<String, List<String>>) KitConfiguration.filterAttributes(provider.getConfiguration().getUserAttributeFilters(),
                             userAttributeLists);
+                    boolean supportsAttributeLists = ((KitIntegration.BaseAttributeListener) provider).supportsAttributeLists();
                     if (provider instanceof KitIntegration.AttributeListener) {
-                        if (((KitIntegration.AttributeListener) provider).supportsAttributeLists()) {
+                        if (supportsAttributeLists) {
                             ((KitIntegration.AttributeListener) provider).setAllUserAttributes(filteredAttributeSingles, filteredAttributeLists);
                         } else {
                             Map<String, String> singlesCopy = new HashMap<>(filteredAttributeSingles);
@@ -617,7 +618,7 @@ public void onUserAttributesReceived(Map<String, String> userAttributes, Map<Str
                         }
                     }
                     if (provider instanceof KitIntegration.UserAttributeListener) {
-                        if (((KitIntegration.UserAttributeListener) provider).supportsAttributeLists()) {
+                        if (supportsAttributeLists) {
                             ((KitIntegration.UserAttributeListener) provider).onSetAllUserAttributes(filteredAttributeSingles, filteredAttributeLists, FilteredMParticleUser.getInstance(mpid, provider));
                         } else {
                             Map<String, String> singlesCopy = new HashMap<>(filteredAttributeSingles);
@@ -683,15 +684,16 @@ private void setUserAttribute(KitIntegration provider, String attributeKey, List
         if ((provider instanceof KitIntegration.AttributeListener || provider instanceof KitIntegration.UserAttributeListener)
                 && !provider.isDisabled()
                 && KitConfiguration.shouldForwardAttribute(provider.getConfiguration().getUserAttributeFilters(), attributeKey)) {
+            boolean supportsAttributeLists = ((KitIntegration.BaseAttributeListener) provider).supportsAttributeLists();
             if (provider instanceof KitIntegration.AttributeListener) {
-                if (((KitIntegration.AttributeListener) provider).supportsAttributeLists()) {
+                if (supportsAttributeLists) {
                     ((KitIntegration.AttributeListener) provider).setUserAttributeList(attributeKey, valueList);
                 } else {
                     ((KitIntegration.AttributeListener) provider).setUserAttribute(attributeKey, KitUtils.join(valueList));
                 }
             }
             if (provider instanceof KitIntegration.UserAttributeListener) {
-                if (((KitIntegration.UserAttributeListener) provider).supportsAttributeLists()) {
+                if (supportsAttributeLists) {
                     ((KitIntegration.UserAttributeListener) provider).onSetUserAttributeList(attributeKey, valueList, FilteredMParticleUser.getInstance(mpid, provider));
                 } else {
                     ((KitIntegration.UserAttributeListener) provider).onSetUserAttribute(attributeKey, KitUtils.join(valueList), FilteredMParticleUser.getInstance(mpid, provider));
@@ -721,15 +723,10 @@ public void removeUserAttribute(String key, long mpid) {
         }
         for (KitIntegration provider : providers.values()) {
             try {
-                if ((provider instanceof KitIntegration.AttributeListener || provider instanceof KitIntegration.UserAttributeListener)
+                if ((provider instanceof KitIntegration.BaseAttributeListener listener)
                         && !provider.isDisabled()
                         && KitConfiguration.shouldForwardAttribute(provider.getConfiguration().getUserAttributeFilters(), key)) {
-                    if (provider instanceof KitIntegration.AttributeListener) {
-                        ((KitIntegration.AttributeListener) provider).removeUserAttribute(key);
-                    }
-                    if (provider instanceof KitIntegration.UserAttributeListener) {
-                        ((KitIntegration.UserAttributeListener) provider).onRemoveUserAttribute(key, FilteredMParticleUser.getInstance(mpid, provider));
-                    }
+                    listener.onRemoveUserAttribute(key, FilteredMParticleUser.getInstance(mpid, provider));
                 }
             } catch (Exception e) {
                 Logger.warning("Failed to call removeUserAttribute/onRemoveUserAttribute for kit: " + provider.getName() + ": " + e.getMessage());

kits/adobe/adobe-5/src/main/kotlin/com/mparticle/kits/AdobeKitBase.kt

@@ -71,7 +71,10 @@ abstract class AdobeKitBase :
         syncIds()
     }
 
-    override fun removeUserAttribute(s: String) {
+    override fun onRemoveUserAttribute(
+        key: String,
+        user: FilteredMParticleUser,
+    ) {
         syncIds()
     }
 
@@ -93,7 +96,9 @@ abstract class AdobeKitBase :
     override fun onPushMessageReceived(
         context: Context,
         intent: Intent,
-    ) {}
+    ) {
+        // No-op: this kit does not implement push message handling.
+    }
 
     override fun onPushRegistration(
         instanceId: String,

kits/adobemedia/adobemedia-5/src/main/kotlin/com/mparticle/kits/AdobeKit.kt

@@ -108,7 +108,10 @@ open class AdobeKit :
         syncIds()
     }
 
-    override fun removeUserAttribute(s: String) {
+    override fun onRemoveUserAttribute(
+        key: String,
+        user: FilteredMParticleUser,
+    ) {
         syncIds()
     }
 

kits/appsflyer/appsflyer-6/src/main/kotlin/com/mparticle/kits/AppsFlyerKit.kt

@@ -277,6 +277,7 @@ class AppsFlyerKit :
         value: Any?,
         user: FilteredMParticleUser?,
     ) {
+        // No-op: this kit does not implement this feature.
     }
 
     override fun onSetUserTag(
@@ -304,9 +305,9 @@ class AppsFlyerKit :
     override fun setAllUserAttributes(
         map: Map<String, String>,
         map1: Map<String, List<String>>,
-    ) {}
-
-    override fun removeUserAttribute(key: String) {}
+    ) {
+        // No-op: this kit does not implement this feature.
+    }
 
     override fun removeUserIdentity(identityType: MParticle.IdentityType) {
         with(instance) {

kits/apptimize/apptimize-3/src/main/kotlin/com/mparticle/kits/ApptimizeKit.kt

@@ -152,7 +152,10 @@ class ApptimizeKit :
         }
     }
 
-    override fun removeUserAttribute(key: String) {
+    override fun onRemoveUserAttribute(
+        key: String,
+        user: FilteredMParticleUser,
+    ) {
         Apptimize.clearUserAttribute(key)
     }
 

kits/branch/branch-5/src/main/kotlin/com/mparticle/kits/BranchMetricsKit.kt

@@ -191,12 +191,19 @@ class BranchMetricsKit :
         map1: Map<String, List<String>>,
     ) {}
 
-    override fun removeUserAttribute(s: String) {}
+    override fun onRemoveUserAttribute(
+        key: String,
+        user: FilteredMParticleUser,
+    ) {
+        // No-op: this kit does not implement this feature.
+    }
 
     override fun setUserIdentity(
         identityType: IdentityType,
         s: String,
-    ) {}
+    ) {
+        // No-op: this kit does not implement this feature.
+    }
 
     override fun removeUserIdentity(identityType: IdentityType) {}
 

kits/braze/braze-38/src/main/kotlin/com/mparticle/kits/AppboyKit.kt

@@ -444,6 +444,37 @@ open class AppboyKit :
         key: String?,
         user: FilteredMParticleUser?,
     ) {
+        if (key == null) {
+            return
+        }
+        var keyMut = key
+        Braze
+            .getInstance(context)
+            .getCurrentUser(
+                object : IValueCallback<BrazeUser> {
+                    override fun onSuccess(value: BrazeUser) {
+                        when (keyMut) {
+                            UserAttributes.CITY -> value.setHomeCity(null)
+                            UserAttributes.COUNTRY -> value.setCountry(null)
+                            UserAttributes.FIRSTNAME -> value.setFirstName(null)
+                            UserAttributes.LASTNAME -> value.setLastName(null)
+                            UserAttributes.MOBILE_NUMBER -> value.setPhoneNumber(null)
+                            else -> {
+                                var customKey = keyMut
+                                if (customKey.startsWith("$")) {
+                                    customKey = customKey.substring(1)
+                                }
+                                value.unsetCustomUserAttribute(customKey)
+                            }
+                        }
+                        queueDataFlush()
+                    }
+
+                    override fun onError() {
+                        Logger.warning("unable to remove User Attribute with key: " + key)
+                    }
+                },
+            )
     }
 
     override fun onSetUserAttribute(
@@ -457,13 +488,15 @@ open class AppboyKit :
         key: String?,
         user: FilteredMParticleUser?,
     ) {
+        // No-op: this kit does not implement this feature.
     }
 
     override fun onSetUserAttributeList(
         attributeKey: String?,
         attributeValueList: MutableList<String>?,
         user: FilteredMParticleUser?,
     ) {
+        // No-op: this kit does not implement this feature.
     }
 
     override fun onSetAllUserAttributes(
@@ -626,45 +659,14 @@ open class AppboyKit :
         }
     }
 
-    override fun removeUserAttribute(keyIn: String) {
-        var key = keyIn
-        Braze
-            .getInstance(context)
-            .getCurrentUser(
-                object : IValueCallback<BrazeUser> {
-                    override fun onSuccess(value: BrazeUser) {
-                        if (UserAttributes.CITY == key) {
-                            value.setHomeCity(null)
-                        } else if (UserAttributes.COUNTRY == key) {
-                            value.setCountry(null)
-                        } else if (UserAttributes.FIRSTNAME == key) {
-                            value.setFirstName(null)
-                        } else if (UserAttributes.LASTNAME == key) {
-                            value.setLastName(null)
-                        } else if (UserAttributes.MOBILE_NUMBER == key) {
-                            value.setPhoneNumber(null)
-                        } else {
-                            if (key.startsWith("$")) {
-                                key = key.substring(1)
-                            }
-                            value.unsetCustomUserAttribute(key)
-                        }
-                        queueDataFlush()
-                    }
-
-                    override fun onError() {
-                        Logger.warning("unable to remove User Attribute with key: " + key)
-                    }
-                },
-            )
-    }
-
     override fun setUserIdentity(
         identityType: IdentityType,
         identity: String,
     ) {}
 
-    override fun removeUserIdentity(identityType: IdentityType) {}
+    override fun removeUserIdentity(identityType: IdentityType) {
+        // No-op: this kit does not implement this feature.
+    }
 
     override fun logout(): List<ReportingMessage> = emptyList()