From d3d065dc426633e7d235cf160db4f25309a79631 Mon Sep 17 00:00:00 2001
From: Olivier Gaillard <gaillard@google.com>
Date: Thu, 5 Jul 2018 15:07:35 +0100
Subject: [PATCH] Add a getTransactionName method to Binder.

This method transforms a binder call code to a human readable name.
AIDL generator will have the ability to override this method.

Test: n/a
Bug: 111200705

Change-Id: Ic1d82e9b403ab40c8b625ca977a819ccd521dd97
---
 core/java/android/os/Binder.java | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/core/java/android/os/Binder.java b/core/java/android/os/Binder.java
index 5652d6dec8a5d..a81d16a6c5629 100644
--- a/core/java/android/os/Binder.java
+++ b/core/java/android/os/Binder.java
@@ -535,6 +535,20 @@ public class Binder implements IBinder {
         return false;
     }
 
+    /**
+     * Resolves a transaction code to a human readable name.
+     *
+     * <p>Default implementation is a stub that returns null.
+     * <p>AIDL generated code will return the original method name.
+     *
+     * @param transactionCode The code to resolve.
+     * @return A human readable name.
+     * @hide
+     */
+    public @Nullable String getTransactionName(int transactionCode) {
+        return null;
+    }
+
     /**
      * Implemented to call the more convenient version
      * {@link #dump(FileDescriptor, PrintWriter, String[])}.
@@ -592,7 +606,7 @@ public class Binder implements IBinder {
 
     /**
      * Print the object's state into the given stream.
-     * 
+     *
      * @param fd The raw file descriptor that the dump is being sent to.
      * @param fout The file to which you should dump your state.  This will be
      * closed for you after you return.