Remove SharedLog usage from NetworkStackClient

As was pointed out, SharedLog in NetworkStackClient (and
ConnectivityModuleConnector) was only used for dump() functionality
which is not called by anyone. This CL removes the unused dump()
functions and removes SharedLog usage in favor of android.util.Log.

Also cleaning up usage of Slog so only logWtf logs to the system log in
both NetworkStackClient and ConnectivityModuleConnector.

Test: m
Bug: 235901424
Change-Id: Ia484ee825cd714fd8eb7704ca1d16acfbe2e7331

services/net/java/android/net/ConnectivityModuleConnector.java

@@ -25,7 +25,6 @@ import android.content.Intent;
 import android.content.ServiceConnection;
 import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
-import android.net.util.SharedLog;
 import android.os.Build;
 import android.os.Environment;
 import android.os.IBinder;
@@ -35,13 +34,13 @@ import android.os.UserHandle;
 import android.provider.DeviceConfig;
 import android.text.format.DateUtils;
 import android.util.ArraySet;
+import android.util.Log;
 import android.util.Slog;
 
 import com.android.internal.annotations.GuardedBy;
 import com.android.internal.annotations.VisibleForTesting;
 
 import java.io.File;
-import java.io.PrintWriter;
 
 /**
  * Class used to communicate to the various networking mainline modules running in the network stack
@@ -73,8 +72,6 @@ public class ConnectivityModuleConnector {
     private static ConnectivityModuleConnector sInstance;
 
     private Context mContext;
-    @GuardedBy("mLog")
-    private final SharedLog mLog = new SharedLog(TAG);
     @GuardedBy("mHealthListeners")
     private final ArraySet<ConnectivityModuleHealthListener> mHealthListeners = new ArraySet<>();
     @NonNull
@@ -384,38 +381,19 @@ public class ConnectivityModuleConnector {
     }
 
     private void log(@NonNull String message) {
-        Slog.d(TAG, message);
-        synchronized (mLog) {
-            mLog.log(message);
-        }
+        Log.d(TAG, message);
     }
 
     private void logWtf(@NonNull String message, @Nullable Throwable e) {
         Slog.wtf(TAG, message, e);
-        synchronized (mLog) {
-            mLog.e(message);
-        }
+        Log.e(TAG, message, e);
     }
 
     private void loge(@NonNull String message, @Nullable Throwable e) {
-        Slog.e(TAG, message, e);
-        synchronized (mLog) {
-            mLog.e(message);
-        }
+        Log.e(TAG, message, e);
     }
 
     private void logi(@NonNull String message) {
-        Slog.i(TAG, message);
-        synchronized (mLog) {
-            mLog.i(message);
-        }
-    }
-
-    /**
-     * Dump ConnectivityModuleConnector logs to the specified {@link PrintWriter}.
-     */
-    public void dump(PrintWriter pw) {
-        // dump is thread-safe on SharedLog
-        mLog.dump(null, pw, null);
+        Log.i(TAG, message);
     }
 }

services/net/java/android/net/NetworkStackClient.java

@@ -25,19 +25,18 @@ import android.content.Context;
 import android.net.dhcp.DhcpServingParamsParcel;
 import android.net.dhcp.IDhcpServerCallbacks;
 import android.net.ip.IIpClientCallbacks;
-import android.net.util.SharedLog;
 import android.os.Binder;
 import android.os.IBinder;
 import android.os.Process;
 import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.os.UserHandle;
+import android.util.Log;
 import android.util.Slog;
 
 import com.android.internal.annotations.GuardedBy;
 import com.android.internal.annotations.VisibleForTesting;
 
-import java.io.PrintWriter;
 import java.util.ArrayList;
 
 /**
@@ -61,9 +60,6 @@ public class NetworkStackClient {
     @GuardedBy("mPendingNetStackRequests")
     private INetworkStackConnector mConnector;
 
-    @GuardedBy("mLog")
-    private final SharedLog mLog = new SharedLog(TAG);
-
     private volatile boolean mWasSystemServerInitialized = false;
 
     private interface NetworkStackCallback {
@@ -237,34 +233,23 @@ public class NetworkStackClient {
     }
 
     /**
-     * Log a message in the local log.
+     * Log a debug message.
      */
     private void log(@NonNull String message) {
-        synchronized (mLog) {
-            mLog.log(message);
-        }
+        Log.d(TAG, message);
     }
 
     private void logWtf(@NonNull String message, @Nullable Throwable e) {
         Slog.wtf(TAG, message);
-        synchronized (mLog) {
-            mLog.e(message, e);
-        }
+        Log.e(TAG, message, e);
     }
 
     private void loge(@NonNull String message, @Nullable Throwable e) {
-        synchronized (mLog) {
-            mLog.e(message, e);
-        }
+        Log.e(TAG, message, e);
     }
 
-    /**
-     * Log a message in the local and system logs.
-     */
     private void logi(@NonNull String message) {
-        synchronized (mLog) {
-            mLog.i(message);
-        }
+        Log.i(TAG, message);
     }
 
     /**
@@ -320,22 +305,4 @@ public class NetworkStackClient {
 
         request.onNetworkStackConnected(connector);
     }
-
-    /**
-     * Dump NetworkStackClient logs to the specified {@link PrintWriter}.
-     */
-    public void dump(PrintWriter pw) {
-        // dump is thread-safe on SharedLog
-        mLog.dump(null, pw, null);
-        // dump connectivity module connector logs.
-        ConnectivityModuleConnector.getInstance().dump(pw);
-
-        final int requestsQueueLength;
-        synchronized (mPendingNetStackRequests) {
-            requestsQueueLength = mPendingNetStackRequests.size();
-        }
-
-        pw.println();
-        pw.println("pendingNetStackRequests length: " + requestsQueueLength);
-    }
 }