Refactor AudioPlaybackConfiguration to reduce usages of hidden APIs

Bug: 141947725
Test: Manual
Change-Id: Ia95776cda3408c321d94494cb25b9cd85cb8662a
diff --git a/api/system-current.txt b/api/system-current.txt
index 001412d..7604e60 100755
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -3732,6 +3732,7 @@
     method public android.media.PlayerProxy getPlayerProxy();
     method public int getPlayerState();
     method public int getPlayerType();
+    method public boolean isActive();
     field public static final int PLAYER_STATE_IDLE = 1; // 0x1
     field public static final int PLAYER_STATE_PAUSED = 3; // 0x3
     field public static final int PLAYER_STATE_RELEASED = 0; // 0x0
diff --git a/media/java/android/media/AudioPlaybackConfiguration.java b/media/java/android/media/AudioPlaybackConfiguration.java
index ab80b3a..515e9d0 100644
--- a/media/java/android/media/AudioPlaybackConfiguration.java
+++ b/media/java/android/media/AudioPlaybackConfiguration.java
@@ -400,6 +400,7 @@
      * configurations
      * @return true if active
      */
+    @SystemApi
     public boolean isActive() {
         switch (mPlayerState) {
             case PLAYER_STATE_STARTED:
@@ -420,18 +421,7 @@
      * @param pw
      */
     public void dump(PrintWriter pw) {
-        pw.println("  " + toLogFriendlyString(this));
-    }
-
-    /**
-     * @hide
-     */
-    public static String toLogFriendlyString(AudioPlaybackConfiguration apc) {
-        return new String("ID:" + apc.mPlayerIId
-                + " -- type:" + toLogFriendlyPlayerType(apc.mPlayerType)
-                + " -- u/pid:" + apc.mClientUid +"/" + apc.mClientPid
-                + " -- state:" + toLogFriendlyPlayerState(apc.mPlayerState)
-                + " -- attr:" + apc.mPlayerAttr);
+        pw.println("  " + this);
     }
 
     public static final @android.annotation.NonNull Parcelable.Creator<AudioPlaybackConfiguration> CREATOR
@@ -498,6 +488,15 @@
                 && (mClientPid == that.mClientPid));
     }
 
+    @Override
+    public String toString() {
+        return "AudioPlaybackConfiguration piid:" + mPlayerIId
+                + " type:" + toLogFriendlyPlayerType(mPlayerType)
+                + " u/pid:" + mClientUid + "/" + mClientPid
+                + " state:" + toLogFriendlyPlayerState(mPlayerState)
+                + " attr:" + mPlayerAttr;
+    }
+
     //=====================================================================
     // Inner class for corresponding IPlayer and its death monitoring
     static final class IPlayerShell implements IBinder.DeathRecipient {
diff --git a/services/core/java/com/android/server/media/AudioPlayerStateMonitor.java b/services/core/java/com/android/server/media/AudioPlayerStateMonitor.java
index eb706d7..1d39177 100644
--- a/services/core/java/com/android/server/media/AudioPlayerStateMonitor.java
+++ b/services/core/java/com/android/server/media/AudioPlayerStateMonitor.java
@@ -240,8 +240,7 @@
                     if (!mPrevActiveAudioPlaybackConfigs.containsKey(
                             config.getPlayerInterfaceId())) {
                         if (DEBUG) {
-                            Log.d(TAG, "Found a new active media playback. "
-                                    + AudioPlaybackConfiguration.toLogFriendlyString(config));
+                            Log.d(TAG, "Found a new active media playback. " + config);
                         }
                         // New active audio playback.
                         int index = mSortedAudioPlaybackClientUids.indexOf(uid);