From bb8a5ef57cd7d69c766dda6351c5c7c093d063d2 Mon Sep 17 00:00:00 2001
From: Surbhi Maheshwari <surbhim@splunk.com>
Date: Mon, 21 Aug 2023 16:00:57 -0700
Subject: [PATCH] Added logic to disable instrumentation for background task

---
 .../android/sample/SampleApplication.java     |  1 +
 .../splunk/rum/BackgroundProcessDetector.java | 26 +++++++++++++++++++
 .../main/java/com/splunk/rum/ConfigFlags.java |  9 +++++++
 .../main/java/com/splunk/rum/SplunkRum.java   | 10 ++++---
 .../java/com/splunk/rum/SplunkRumBuilder.java | 12 +++++++++
 5 files changed, 55 insertions(+), 3 deletions(-)
 create mode 100644 splunk-otel-android/src/main/java/com/splunk/rum/BackgroundProcessDetector.java

diff --git a/sample-app/src/main/java/com/splunk/android/sample/SampleApplication.java b/sample-app/src/main/java/com/splunk/android/sample/SampleApplication.java
index cb21dc851..9f5ed8bad 100644
--- a/sample-app/src/main/java/com/splunk/android/sample/SampleApplication.java
+++ b/sample-app/src/main/java/com/splunk/android/sample/SampleApplication.java
@@ -42,6 +42,7 @@ public void onCreate() {
                 .setRumAccessToken(getResources().getString(R.string.rum_access_token))
                 .enableDebug()
                 .enableDiskBuffering()
+                .disableBackgroundTaskReporting(BuildConfig.APPLICATION_ID)
                 .setSlowRenderingDetectionPollInterval(Duration.ofMillis(1000))
                 .setDeploymentEnvironment("demo")
                 .limitDiskUsageMegabytes(1)
diff --git a/splunk-otel-android/src/main/java/com/splunk/rum/BackgroundProcessDetector.java b/splunk-otel-android/src/main/java/com/splunk/rum/BackgroundProcessDetector.java
new file mode 100644
index 000000000..9e22ee12b
--- /dev/null
+++ b/splunk-otel-android/src/main/java/com/splunk/rum/BackgroundProcessDetector.java
@@ -0,0 +1,26 @@
+package com.splunk.rum;
+
+import android.annotation.SuppressLint;
+import android.app.Application;
+import android.os.Build;
+import java.lang.reflect.Method;
+
+public class BackgroundProcessDetector {
+    public static Boolean isBackgroundProcess(String applicationId) {
+        String applicationProcessName = "";
+        if (Build.VERSION.SDK_INT >= 28)
+            applicationProcessName = Application.getProcessName();
+        else {
+            try {
+                @SuppressLint("PrivateApi")
+                Class<?> activityThread = Class.forName("android.app.ActivityThread");
+                String methodName = "currentProcessName";
+                @SuppressLint("PrivateApi") Method getProcessName = activityThread.getDeclaredMethod(methodName);
+                applicationProcessName = (String) getProcessName.invoke(null);
+            } catch (Exception e) {
+            }
+        }
+
+        return applicationProcessName != null && applicationProcessName.equals(applicationId);
+    }
+}
diff --git a/splunk-otel-android/src/main/java/com/splunk/rum/ConfigFlags.java b/splunk-otel-android/src/main/java/com/splunk/rum/ConfigFlags.java
index d3134fbca..ef1bab0ed 100644
--- a/splunk-otel-android/src/main/java/com/splunk/rum/ConfigFlags.java
+++ b/splunk-otel-android/src/main/java/com/splunk/rum/ConfigFlags.java
@@ -26,6 +26,7 @@ class ConfigFlags {
     private boolean networkMonitorEnabled = true;
     private boolean anrDetectionEnabled = true;
     private boolean slowRenderingDetectionEnabled = true;
+    private boolean backgroundTaskInstrumentationEnabled = true;
 
     void enableDebug() {
         debugEnabled = true;
@@ -55,10 +56,18 @@ void disableSlowRenderingDetection() {
         slowRenderingDetectionEnabled = false;
     }
 
+    public void disableBackgroundTaskDetection() {
+        backgroundTaskInstrumentationEnabled = false;
+    }
+
     boolean isDebugEnabled() {
         return debugEnabled;
     }
 
+    boolean isBackgroundTaskInstrumentationEnabled() {
+        return backgroundTaskInstrumentationEnabled;
+    }
+
     boolean isAnrDetectionEnabled() {
         return anrDetectionEnabled;
     }
diff --git a/splunk-otel-android/src/main/java/com/splunk/rum/SplunkRum.java b/splunk-otel-android/src/main/java/com/splunk/rum/SplunkRum.java
index 710afe521..6ba762e9a 100644
--- a/splunk-otel-android/src/main/java/com/splunk/rum/SplunkRum.java
+++ b/splunk-otel-android/src/main/java/com/splunk/rum/SplunkRum.java
@@ -100,9 +100,13 @@ static SplunkRum initialize(
             return INSTANCE;
         }
 
-        INSTANCE =
-                new RumInitializer(builder, application, startupTimer)
-                        .initialize(currentNetworkProviderFactory, Looper.getMainLooper());
+        if(builder.isBackgroundTaskReportingEnabled()) {
+            INSTANCE = NoOpSplunkRum.INSTANCE;
+        } else {
+            INSTANCE =
+                    new RumInitializer(builder, application, startupTimer)
+                            .initialize(currentNetworkProviderFactory, Looper.getMainLooper());
+        }
 
         if (builder.isDebugEnabled()) {
             Log.i(
diff --git a/splunk-otel-android/src/main/java/com/splunk/rum/SplunkRumBuilder.java b/splunk-otel-android/src/main/java/com/splunk/rum/SplunkRumBuilder.java
index 1b826a1e6..609517f20 100644
--- a/splunk-otel-android/src/main/java/com/splunk/rum/SplunkRumBuilder.java
+++ b/splunk-otel-android/src/main/java/com/splunk/rum/SplunkRumBuilder.java
@@ -314,6 +314,14 @@ public SplunkRum build(Application application) {
         return SplunkRum.initialize(this, application, CurrentNetworkProvider::createAndStart);
     }
 
+    public SplunkRumBuilder disableBackgroundTaskReporting(String applicationId) {
+        Boolean isBackgroundProcess = BackgroundProcessDetector.isBackgroundProcess(applicationId);
+        if(isBackgroundProcess) {
+            configFlags.disableBackgroundTaskDetection();
+        }
+        return this;
+    }
+
     // one day maybe these can use kotlin delegation
     ConfigFlags getConfigFlags() {
         return configFlags;
@@ -350,4 +358,8 @@ boolean isDiskBufferingEnabled() {
     boolean isReactNativeSupportEnabled() {
         return configFlags.isReactNativeSupportEnabled();
     }
+
+    boolean isBackgroundTaskReportingEnabled() {
+        return configFlags.isBackgroundTaskInstrumentationEnabled();
+    }
 }