Use a single SharedLog for all mdns components

Use a single SharedLog in NsdService, and making subcomponents
for DiscoveryManager/Advertiser/SocketProvider. Because each
logger has 500 maxRecords, so 2000 records in total, which take
too much memory.

Also address leftover comments in previous logging changes.

Before:
  2023-04-17T15:05:27.409895 - [Client10082-1] Register a DiscoveryListener 3 for service type:_nmt274981618._tcp.local
  2023-04-17T15:05:26.408015 - [Client10082-1] New client. useJavaBackend=true

Advertiser:
  2023-04-17T15:05:27.213023 - [testtap0] Probing finished for service 2
  2023-04-17T15:05:26.409607 - Adding service name: ^Nsd.Test|Non-#AsCiI\Characters&\ufffe テスト 測試, type: _nmt274981618._tcp, hostAddresses: , port: 12345, network: null, txtRecord:  with ID 2

DiscoveryManager:
  2023-04-17T15:05:28.227786 - [_nmt274981618._tcp.local-102] onServiceNameDiscovered: ^Nsd.Test|Non-#AsCiI\Characters&\ufffe テスト 測試
  2023-04-17T15:05:27.409104 - createServiceTypeClient for serviceType:_nmt274981618._tcp.local network:102
  2023-04-17T15:05:27.398075 - Registering listener for serviceType: _nmt274981618._tcp.local

SocketProvider:
  2023-04-17T15:05:28.292106 - Remove socket on net:102
  2023-04-17T15:05:26.441517 - Create socket on net:NetworkAsKey{ network=102 }, ifName:testtap0
  2023-04-17T15:05:26.409005 - Start monitoring sockets.

After:
Logs:
  2023-04-17T20:51:42.931769 - [MdnsDiscoveryManager._nmt682015268._tcp.local-101] onServiceNameDiscovered: Name: ^Nsd.Test|Non-#AsCiI\Characters&\ufffe テスト 測試, type: _nmt682015268._tcp.local, subtypes: , ip: [100.70.162.138], ipv6: [fe80::9c0e:d0ff:fe7d:e5aa, 2a00:79e1:abc:6f04:9c0e:d0ff:fe7d:e5aa, 2a00:79e1:abc:6f04:eb56:8e39:5e1f:1102], port: 12345, interfaceIndex: 47, network: 101, textStrings: [], textEntries: []
  2023-04-17T20:51:42.032465 - [NsdService.Client10082-1] Register a DiscoveryListener 3 for service type:_nmt682015268._tcp.local
  2023-04-17T20:51:42.026645 - [MdnsDiscoveryManager] createServiceTypeClient for type:_nmt682015268._tcp.local, net:101
  2023-04-17T20:51:41.091555 - [MdnsAdvertiser] Adding service name: ^Nsd.Test|Non-#AsCiI\Characters&\ufffe テスト 測試, type: _nmt682015268._tcp, hostAddresses: , port: 12345, network: null, txtRecord:  with ID 2
  2023-04-17T20:51:41.091037 - [MdnsSocketProvider] Start monitoring sockets.
  2023-04-17T20:51:41.089951 - [NsdService.Client10082-1] New client. useJavaBackend=true

Bug: 275004614
Test: atest FrameworksNetTests android.net.cts.NsdManagerTest
Change-Id: I1c9b7697cc95748f7fe4e6beecea217d39c56fb1
diff --git a/service-t/src/com/android/server/NsdService.java b/service-t/src/com/android/server/NsdService.java
index f30f120..1e0d544 100644
--- a/service-t/src/com/android/server/NsdService.java
+++ b/service-t/src/com/android/server/NsdService.java
@@ -142,6 +142,7 @@
     public static final boolean DBG = Log.isLoggable(TAG, Log.DEBUG);
     private static final long CLEANUP_DELAY_MS = 10000;
     private static final int IFACE_IDX_ANY = 0;
+    private static final SharedLog LOGGER = new SharedLog("serviceDiscovery");
 
     private final Context mContext;
     private final NsdStateMachine mNsdStateMachine;
@@ -157,7 +158,7 @@
     private final MdnsSocketProvider mMdnsSocketProvider;
     @NonNull
     private final MdnsAdvertiser mAdvertiser;
-    private final SharedLog mServiceLogs = new SharedLog(TAG);
+    private final SharedLog mServiceLogs = LOGGER.forSubComponent(TAG);
     // WARNING : Accessing these values in any thread is not safe, it must only be changed in the
     // state machine thread. If change this outside state machine, it will need to introduce
     // synchronization.
@@ -1326,17 +1327,18 @@
         mMDnsEventCallback = new MDnsEventCallback(mNsdStateMachine);
         mDeps = deps;
 
-        mMdnsSocketProvider = deps.makeMdnsSocketProvider(ctx, handler.getLooper());
+        mMdnsSocketProvider = deps.makeMdnsSocketProvider(ctx, handler.getLooper(),
+                LOGGER.forSubComponent("MdnsSocketProvider"));
         // Netlink monitor starts on boot, and intentionally never stopped, to ensure that all
         // address events are received.
         handler.post(mMdnsSocketProvider::startNetLinkMonitor);
         mMdnsSocketClient =
                 new MdnsMultinetworkSocketClient(handler.getLooper(), mMdnsSocketProvider);
-        mMdnsDiscoveryManager =
-                deps.makeMdnsDiscoveryManager(new ExecutorProvider(), mMdnsSocketClient);
+        mMdnsDiscoveryManager = deps.makeMdnsDiscoveryManager(new ExecutorProvider(),
+                mMdnsSocketClient, LOGGER.forSubComponent("MdnsDiscoveryManager"));
         handler.post(() -> mMdnsSocketClient.setCallback(mMdnsDiscoveryManager));
         mAdvertiser = deps.makeMdnsAdvertiser(handler.getLooper(), mMdnsSocketProvider,
-                new AdvertiserCallback());
+                new AdvertiserCallback(), LOGGER.forSubComponent("MdnsAdvertiser"));
     }
 
     /**
@@ -1390,8 +1392,9 @@
          * @see MdnsDiscoveryManager
          */
         public MdnsDiscoveryManager makeMdnsDiscoveryManager(
-                ExecutorProvider executorProvider, MdnsSocketClientBase socketClient) {
-            return new MdnsDiscoveryManager(executorProvider, socketClient);
+                @NonNull ExecutorProvider executorProvider,
+                @NonNull MdnsSocketClientBase socketClient, @NonNull SharedLog sharedLog) {
+            return new MdnsDiscoveryManager(executorProvider, socketClient, sharedLog);
         }
 
         /**
@@ -1399,15 +1402,16 @@
          */
         public MdnsAdvertiser makeMdnsAdvertiser(
                 @NonNull Looper looper, @NonNull MdnsSocketProvider socketProvider,
-                @NonNull MdnsAdvertiser.AdvertiserCallback cb) {
-            return new MdnsAdvertiser(looper, socketProvider, cb);
+                @NonNull MdnsAdvertiser.AdvertiserCallback cb, @NonNull SharedLog sharedLog) {
+            return new MdnsAdvertiser(looper, socketProvider, cb, sharedLog);
         }
 
         /**
          * @see MdnsSocketProvider
          */
-        public MdnsSocketProvider makeMdnsSocketProvider(Context context, Looper looper) {
-            return new MdnsSocketProvider(context, looper);
+        public MdnsSocketProvider makeMdnsSocketProvider(@NonNull Context context,
+                @NonNull Looper looper, @NonNull SharedLog sharedLog) {
+            return new MdnsSocketProvider(context, looper, sharedLog);
         }
     }
 
@@ -1769,30 +1773,10 @@
 
         // Dump service and clients logs
         pw.println();
+        pw.println("Logs:");
         pw.increaseIndent();
         mServiceLogs.reverseDump(pw);
         pw.decreaseIndent();
-
-        // Dump advertiser related logs
-        pw.println();
-        pw.println("Advertiser:");
-        pw.increaseIndent();
-        mAdvertiser.dump(pw);
-        pw.decreaseIndent();
-
-        // Dump discoverymanager related logs
-        pw.println();
-        pw.println("DiscoveryManager:");
-        pw.increaseIndent();
-        mMdnsDiscoveryManager.dump(pw);
-        pw.decreaseIndent();
-
-        // Dump socketprovider related logs
-        pw.println();
-        pw.println("SocketProvider:");
-        pw.increaseIndent();
-        mMdnsSocketProvider.dump(pw);
-        pw.decreaseIndent();
     }
 
     private abstract static class ClientRequest {
diff --git a/service-t/src/com/android/server/connectivity/mdns/MdnsAdvertiser.java b/service-t/src/com/android/server/connectivity/mdns/MdnsAdvertiser.java
index a332da7..655c364 100644
--- a/service-t/src/com/android/server/connectivity/mdns/MdnsAdvertiser.java
+++ b/service-t/src/com/android/server/connectivity/mdns/MdnsAdvertiser.java
@@ -33,7 +33,6 @@
 import com.android.net.module.util.SharedLog;
 import com.android.server.connectivity.mdns.util.MdnsUtils;
 
-import java.io.PrintWriter;
 import java.util.List;
 import java.util.Map;
 import java.util.UUID;
@@ -51,7 +50,7 @@
 
     // Top-level domain for link-local queries, as per RFC6762 3.
     private static final String LOCAL_TLD = "local";
-    private static final SharedLog LOGGER = new SharedLog(TAG);
+
 
     private final Looper mLooper;
     private final AdvertiserCallback mCb;
@@ -71,6 +70,7 @@
     private final Dependencies mDeps;
 
     private String[] mDeviceHostName;
+    @NonNull private final SharedLog mSharedLog;
 
     /**
      * Dependencies for {@link MdnsAdvertiser}, useful for testing.
@@ -84,11 +84,11 @@
                 @NonNull List<LinkAddress> initialAddresses,
                 @NonNull Looper looper, @NonNull byte[] packetCreationBuffer,
                 @NonNull MdnsInterfaceAdvertiser.Callback cb,
-                @NonNull String[] deviceHostName) {
+                @NonNull String[] deviceHostName,
+                @NonNull SharedLog sharedLog) {
             // Note NetworkInterface is final and not mockable
-            final String logTag = socket.getInterface().getName();
-            return new MdnsInterfaceAdvertiser(logTag, socket, initialAddresses, looper,
-                    packetCreationBuffer, cb, deviceHostName, LOGGER.forSubComponent(logTag));
+            return new MdnsInterfaceAdvertiser(socket, initialAddresses, looper,
+                    packetCreationBuffer, cb, deviceHostName, sharedLog);
         }
 
         /**
@@ -135,7 +135,7 @@
 
         @Override
         public void onServiceConflict(@NonNull MdnsInterfaceAdvertiser advertiser, int serviceId) {
-            LOGGER.i("Found conflict, restarted probing for service " + serviceId);
+            mSharedLog.i("Found conflict, restarted probing for service " + serviceId);
 
             final Registration registration = mRegistrations.get(serviceId);
             if (registration == null) return;
@@ -291,7 +291,8 @@
             MdnsInterfaceAdvertiser advertiser = mAllAdvertisers.get(socket);
             if (advertiser == null) {
                 advertiser = mDeps.makeAdvertiser(socket, addresses, mLooper, mPacketCreationBuffer,
-                        mInterfaceAdvertiserCb, mDeviceHostName);
+                        mInterfaceAdvertiserCb, mDeviceHostName,
+                        mSharedLog.forSubComponent(socket.getInterface().getName()));
                 mAllAdvertisers.put(socket, advertiser);
                 advertiser.start();
             }
@@ -416,18 +417,20 @@
     }
 
     public MdnsAdvertiser(@NonNull Looper looper, @NonNull MdnsSocketProvider socketProvider,
-            @NonNull AdvertiserCallback cb) {
-        this(looper, socketProvider, cb, new Dependencies());
+            @NonNull AdvertiserCallback cb, @NonNull SharedLog sharedLog) {
+        this(looper, socketProvider, cb, new Dependencies(), sharedLog);
     }
 
     @VisibleForTesting
     MdnsAdvertiser(@NonNull Looper looper, @NonNull MdnsSocketProvider socketProvider,
-            @NonNull AdvertiserCallback cb, @NonNull Dependencies deps) {
+            @NonNull AdvertiserCallback cb, @NonNull Dependencies deps,
+            @NonNull SharedLog sharedLog) {
         mLooper = looper;
         mCb = cb;
         mSocketProvider = socketProvider;
         mDeps = deps;
         mDeviceHostName = deps.generateHostname();
+        mSharedLog = sharedLog;
     }
 
     private void checkThread() {
@@ -450,7 +453,7 @@
             return;
         }
 
-        LOGGER.i("Adding service " + service + " with ID " + id);
+        mSharedLog.i("Adding service " + service + " with ID " + id);
 
         final Network network = service.getNetwork();
         final Registration registration = new Registration(service);
@@ -482,7 +485,7 @@
     public void removeService(int id) {
         checkThread();
         if (!mRegistrations.contains(id)) return;
-        LOGGER.i("Removing service with ID " + id);
+        mSharedLog.i("Removing service with ID " + id);
         for (int i = mAdvertiserRequests.size() - 1; i >= 0; i--) {
             final InterfaceAdvertiserRequest advertiser = mAdvertiserRequests.valueAt(i);
             advertiser.removeService(id);
@@ -494,10 +497,6 @@
         }
     }
 
-    /** Dump info to dumpsys */
-    public void dump(PrintWriter pw) {
-        LOGGER.reverseDump(pw);
-    }
     private static <K, V> boolean any(@NonNull ArrayMap<K, V> map,
             @NonNull BiPredicate<K, V> predicate) {
         for (int i = 0; i < map.size(); i++) {
diff --git a/service-t/src/com/android/server/connectivity/mdns/MdnsDiscoveryManager.java b/service-t/src/com/android/server/connectivity/mdns/MdnsDiscoveryManager.java
index 8ca93df..849eac1 100644
--- a/service-t/src/com/android/server/connectivity/mdns/MdnsDiscoveryManager.java
+++ b/service-t/src/com/android/server/connectivity/mdns/MdnsDiscoveryManager.java
@@ -32,7 +32,6 @@
 import com.android.net.module.util.SharedLog;
 
 import java.io.IOException;
-import java.io.PrintWriter;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -43,10 +42,10 @@
 public class MdnsDiscoveryManager implements MdnsSocketClientBase.Callback {
     private static final String TAG = MdnsDiscoveryManager.class.getSimpleName();
     public static final boolean DBG = Log.isLoggable(TAG, Log.DEBUG);
-    private static final SharedLog LOGGER = new SharedLog(TAG);
 
     private final ExecutorProvider executorProvider;
     private final MdnsSocketClientBase socketClient;
+    @NonNull private final SharedLog sharedLog;
 
     @GuardedBy("this")
     @NonNull private final PerNetworkServiceTypeClients perNetworkServiceTypeClients;
@@ -104,9 +103,10 @@
     }
 
     public MdnsDiscoveryManager(@NonNull ExecutorProvider executorProvider,
-            @NonNull MdnsSocketClientBase socketClient) {
+            @NonNull MdnsSocketClientBase socketClient, @NonNull SharedLog sharedLog) {
         this.executorProvider = executorProvider;
         this.socketClient = socketClient;
+        this.sharedLog = sharedLog;
         perNetworkServiceTypeClients = new PerNetworkServiceTypeClients();
     }
 
@@ -124,13 +124,13 @@
             @NonNull String serviceType,
             @NonNull MdnsServiceBrowserListener listener,
             @NonNull MdnsSearchOptions searchOptions) {
-        LOGGER.i("Registering listener for serviceType: " + serviceType);
+        sharedLog.i("Registering listener for serviceType: " + serviceType);
         if (perNetworkServiceTypeClients.isEmpty()) {
             // First listener. Starts the socket client.
             try {
                 socketClient.startDiscovery();
             } catch (IOException e) {
-                LOGGER.e("Failed to start discover.", e);
+                sharedLog.e("Failed to start discover.", e);
                 return;
             }
         }
@@ -159,7 +159,7 @@
     @RequiresPermission(permission.CHANGE_WIFI_MULTICAST_STATE)
     public synchronized void unregisterListener(
             @NonNull String serviceType, @NonNull MdnsServiceBrowserListener listener) {
-        LOGGER.i("Unregistering listener for serviceType:" + serviceType);
+        sharedLog.i("Unregistering listener for serviceType:" + serviceType);
         final List<MdnsServiceTypeClient> serviceTypeClients =
                 perNetworkServiceTypeClients.getByServiceType(serviceType);
         if (serviceTypeClients.isEmpty()) {
@@ -199,19 +199,13 @@
         }
     }
 
-    /** Dump info to dumpsys */
-    public void dump(PrintWriter pw) {
-        LOGGER.reverseDump(pw);
-    }
-
     @VisibleForTesting
     MdnsServiceTypeClient createServiceTypeClient(@NonNull String serviceType,
             @Nullable Network network) {
-        LOGGER.log("createServiceTypeClient for serviceType:" + serviceType
-                + " network:" + network);
+        sharedLog.log("createServiceTypeClient for type:" + serviceType + ", net:" + network);
         return new MdnsServiceTypeClient(
                 serviceType, socketClient,
                 executorProvider.newServiceTypeClientSchedulerExecutor(), network,
-                LOGGER.forSubComponent(serviceType + "-" + network));
+                sharedLog.forSubComponent(serviceType + "-" + network));
     }
 }
\ No newline at end of file
diff --git a/service-t/src/com/android/server/connectivity/mdns/MdnsInterfaceAdvertiser.java b/service-t/src/com/android/server/connectivity/mdns/MdnsInterfaceAdvertiser.java
index 9eaa580..4e09515 100644
--- a/service-t/src/com/android/server/connectivity/mdns/MdnsInterfaceAdvertiser.java
+++ b/service-t/src/com/android/server/connectivity/mdns/MdnsInterfaceAdvertiser.java
@@ -170,29 +170,29 @@
         }
     }
 
-    public MdnsInterfaceAdvertiser(@NonNull String logTag,
-            @NonNull MdnsInterfaceSocket socket, @NonNull List<LinkAddress> initialAddresses,
-            @NonNull Looper looper, @NonNull byte[] packetCreationBuffer, @NonNull Callback cb,
+    public MdnsInterfaceAdvertiser(@NonNull MdnsInterfaceSocket socket,
+            @NonNull List<LinkAddress> initialAddresses, @NonNull Looper looper,
+            @NonNull byte[] packetCreationBuffer, @NonNull Callback cb,
             @NonNull String[] deviceHostName, @NonNull SharedLog sharedLog) {
-        this(logTag, socket, initialAddresses, looper, packetCreationBuffer, cb,
+        this(socket, initialAddresses, looper, packetCreationBuffer, cb,
                 new Dependencies(), deviceHostName, sharedLog);
     }
 
-    public MdnsInterfaceAdvertiser(@NonNull String logTag,
-            @NonNull MdnsInterfaceSocket socket, @NonNull List<LinkAddress> initialAddresses,
-            @NonNull Looper looper, @NonNull byte[] packetCreationBuffer, @NonNull Callback cb,
-            @NonNull Dependencies deps, @NonNull String[] deviceHostName,
-            @NonNull SharedLog sharedLog) {
-        mTag = MdnsInterfaceAdvertiser.class.getSimpleName() + "/" + logTag;
+    public MdnsInterfaceAdvertiser(@NonNull MdnsInterfaceSocket socket,
+            @NonNull List<LinkAddress> initialAddresses, @NonNull Looper looper,
+            @NonNull byte[] packetCreationBuffer, @NonNull Callback cb, @NonNull Dependencies deps,
+            @NonNull String[] deviceHostName, @NonNull SharedLog sharedLog) {
+        mTag = MdnsInterfaceAdvertiser.class.getSimpleName() + "/" + sharedLog.getTag();
         mRecordRepository = deps.makeRecordRepository(looper, deviceHostName);
         mRecordRepository.updateAddresses(initialAddresses);
         mSocket = socket;
         mCb = cb;
         mCbHandler = new Handler(looper);
-        mReplySender = deps.makeReplySender(logTag, looper, socket, packetCreationBuffer);
-        mAnnouncer = deps.makeMdnsAnnouncer(logTag, looper, mReplySender,
+        mReplySender = deps.makeReplySender(sharedLog.getTag(), looper, socket,
+                packetCreationBuffer);
+        mAnnouncer = deps.makeMdnsAnnouncer(sharedLog.getTag(), looper, mReplySender,
                 mAnnouncingCallback);
-        mProber = deps.makeMdnsProber(logTag, looper, mReplySender, mProbingCallback);
+        mProber = deps.makeMdnsProber(sharedLog.getTag(), looper, mReplySender, mProbingCallback);
         mSharedLog = sharedLog;
     }
 
diff --git a/service-t/src/com/android/server/connectivity/mdns/MdnsServiceTypeClient.java b/service-t/src/com/android/server/connectivity/mdns/MdnsServiceTypeClient.java
index 72b931d..6585d44 100644
--- a/service-t/src/com/android/server/connectivity/mdns/MdnsServiceTypeClient.java
+++ b/service-t/src/com/android/server/connectivity/mdns/MdnsServiceTypeClient.java
@@ -288,16 +288,16 @@
             if (!responseMatchesOptions(response, listeners.valueAt(i))) continue;
             final MdnsServiceBrowserListener listener = listeners.keyAt(i);
             if (newServiceFound) {
-                sharedLog.log("onServiceNameDiscovered: " + serviceInstanceName);
+                sharedLog.log("onServiceNameDiscovered: " + serviceInfo);
                 listener.onServiceNameDiscovered(serviceInfo);
             }
 
             if (response.isComplete()) {
                 if (newServiceFound || serviceBecomesComplete) {
-                    sharedLog.log("onServiceFound: " + serviceInstanceName);
+                    sharedLog.log("onServiceFound: " + serviceInfo);
                     listener.onServiceFound(serviceInfo);
                 } else {
-                    sharedLog.log("onServiceUpdated: " + serviceInstanceName);
+                    sharedLog.log("onServiceUpdated: " + serviceInfo);
                     listener.onServiceUpdated(serviceInfo);
                 }
             }
@@ -315,10 +315,10 @@
             final MdnsServiceInfo serviceInfo =
                     buildMdnsServiceInfoFromResponse(response, serviceTypeLabels);
             if (response.isComplete()) {
-                sharedLog.log("onServiceRemoved: " + serviceInstanceName);
+                sharedLog.log("onServiceRemoved: " + serviceInfo);
                 listener.onServiceRemoved(serviceInfo);
             }
-            sharedLog.log("onServiceNameRemoved: " + serviceInstanceName);
+            sharedLog.log("onServiceNameRemoved: " + serviceInfo);
             listener.onServiceNameRemoved(serviceInfo);
         }
     }
@@ -535,19 +535,17 @@
                                     continue;
                                 }
                                 final MdnsServiceBrowserListener listener = listeners.keyAt(i);
-                                String serviceInstanceName =
-                                        existingResponse.getServiceInstanceName();
-                                if (serviceInstanceName != null) {
+                                if (existingResponse.getServiceInstanceName() != null) {
                                     final MdnsServiceInfo serviceInfo =
                                             buildMdnsServiceInfoFromResponse(
                                                     existingResponse, serviceTypeLabels);
                                     if (existingResponse.isComplete()) {
                                         sharedLog.log("TTL expired. onServiceRemoved: "
-                                                + serviceInstanceName);
+                                                + serviceInfo);
                                         listener.onServiceRemoved(serviceInfo);
                                     }
                                     sharedLog.log("TTL expired. onServiceNameRemoved: "
-                                            + serviceInstanceName);
+                                            + serviceInfo);
                                     listener.onServiceNameRemoved(serviceInfo);
                                 }
                             }
diff --git a/service-t/src/com/android/server/connectivity/mdns/MdnsSocketProvider.java b/service-t/src/com/android/server/connectivity/mdns/MdnsSocketProvider.java
index d090a4d..ca61d34 100644
--- a/service-t/src/com/android/server/connectivity/mdns/MdnsSocketProvider.java
+++ b/service-t/src/com/android/server/connectivity/mdns/MdnsSocketProvider.java
@@ -47,7 +47,6 @@
 import com.android.net.module.util.SharedLog;
 
 import java.io.IOException;
-import java.io.PrintWriter;
 import java.net.NetworkInterface;
 import java.net.SocketException;
 import java.util.ArrayList;
@@ -69,7 +68,6 @@
     // But 1440 should generally be enough because of standard Ethernet.
     // Note: mdnsresponder mDNSEmbeddedAPI.h uses 8940 for Ethernet jumbo frames.
     private static final int READ_BUFFER_SIZE = 2048;
-    private static final SharedLog LOGGER = new SharedLog(TAG);
     private static final int IFACE_IDX_NOT_EXIST = -1;
     @NonNull private final Context mContext;
     @NonNull private final Looper mLooper;
@@ -78,6 +76,7 @@
     @NonNull private final NetworkCallback mNetworkCallback;
     @NonNull private final TetheringEventCallback mTetheringEventCallback;
     @NonNull private final AbstractSocketNetlink mSocketNetlinkMonitor;
+    @NonNull private final SharedLog mSharedLog;
     private final ArrayMap<Network, SocketInfo> mNetworkSockets = new ArrayMap<>();
     private final ArrayMap<String, SocketInfo> mTetherInterfaceSockets = new ArrayMap<>();
     private final ArrayMap<Network, LinkProperties> mActiveNetworksLinkProperties =
@@ -94,16 +93,18 @@
     private boolean mMonitoringSockets = false;
     private boolean mRequestStop = false;
 
-    public MdnsSocketProvider(@NonNull Context context, @NonNull Looper looper) {
-        this(context, looper, new Dependencies());
+    public MdnsSocketProvider(@NonNull Context context, @NonNull Looper looper,
+            @NonNull SharedLog sharedLog) {
+        this(context, looper, new Dependencies(), sharedLog);
     }
 
     MdnsSocketProvider(@NonNull Context context, @NonNull Looper looper,
-            @NonNull Dependencies deps) {
+            @NonNull Dependencies deps, @NonNull SharedLog sharedLog) {
         mContext = context;
         mLooper = looper;
         mHandler = new Handler(looper);
         mDependencies = deps;
+        mSharedLog = sharedLog;
         mNetworkCallback = new NetworkCallback() {
             @Override
             public void onLost(Network network) {
@@ -135,8 +136,8 @@
             }
         };
 
-        mSocketNetlinkMonitor = mDependencies.createSocketNetlinkMonitor(mHandler, LOGGER,
-                new NetLinkMessageProcessor());
+        mSocketNetlinkMonitor = mDependencies.createSocketNetlinkMonitor(mHandler,
+                mSharedLog.forSubComponent("NetlinkMonitor"), new NetLinkMessageProcessor());
     }
 
     /**
@@ -253,7 +254,7 @@
             Log.d(TAG, "Already monitoring sockets.");
             return;
         }
-        LOGGER.i("Start monitoring sockets.");
+        mSharedLog.i("Start monitoring sockets.");
         mContext.getSystemService(ConnectivityManager.class).registerNetworkCallback(
                 new NetworkRequest.Builder().clearCapabilities().build(),
                 mNetworkCallback, mHandler);
@@ -282,7 +283,7 @@
 
         // Only unregister the network callback if there is no socket request.
         if (mCallbacksToRequestedNetworks.isEmpty()) {
-            LOGGER.i("Stop monitoring sockets.");
+            mSharedLog.i("Stop monitoring sockets.");
             mContext.getSystemService(ConnectivityManager.class)
                     .unregisterNetworkCallback(mNetworkCallback);
 
@@ -420,7 +421,7 @@
                 return;
             }
 
-            LOGGER.log("Create socket on net:" + networkKey + ", ifName:" + interfaceName);
+            mSharedLog.log("Create socket on net:" + networkKey + ", ifName:" + interfaceName);
             final MdnsInterfaceSocket socket = mDependencies.createMdnsInterfaceSocket(
                     networkInterface.getNetworkInterface(), MdnsConstants.MDNS_PORT, mLooper,
                     mPacketReadBuffer);
@@ -441,7 +442,7 @@
                 notifySocketCreated(((NetworkAsKey) networkKey).mNetwork, socket, addresses);
             }
         } catch (IOException e) {
-            LOGGER.e("Create socket failed ifName:" + interfaceName, e);
+            mSharedLog.e("Create socket failed ifName:" + interfaceName, e);
         }
     }
 
@@ -470,7 +471,7 @@
             // transports above in priority.
             return iface.supportsMulticast();
         } catch (SocketException e) {
-            LOGGER.e("Error checking interface flags", e);
+            mSharedLog.e("Error checking interface flags", e);
             return false;
         }
     }
@@ -481,7 +482,7 @@
 
         socketInfo.mSocket.destroy();
         notifyInterfaceDestroyed(network, socketInfo.mSocket);
-        LOGGER.log("Remove socket on net:" + network);
+        mSharedLog.log("Remove socket on net:" + network);
     }
 
     private void removeTetherInterfaceSocket(String interfaceName) {
@@ -489,7 +490,7 @@
         if (socketInfo == null) return;
         socketInfo.mSocket.destroy();
         notifyInterfaceDestroyed(null /* network */, socketInfo.mSocket);
-        LOGGER.log("Remove socket on ifName:" + interfaceName);
+        mSharedLog.log("Remove socket on ifName:" + interfaceName);
     }
 
     private void notifySocketCreated(Network network, MdnsInterfaceSocket socket,
@@ -561,6 +562,7 @@
      */
     public void requestSocket(@Nullable Network network, @NonNull SocketCallback cb) {
         ensureRunningOnHandlerThread(mHandler);
+        mSharedLog.log("requestSocket for net:" + network);
         mCallbacksToRequestedNetworks.put(cb, network);
         if (network == null) {
             // Does not specify a required network, create sockets for all possible
@@ -584,6 +586,7 @@
     /*** Unrequest the socket */
     public void unrequestSocket(@NonNull SocketCallback cb) {
         ensureRunningOnHandlerThread(mHandler);
+        mSharedLog.log("unrequestSocket");
         mCallbacksToRequestedNetworks.remove(cb);
         if (hasAllNetworksRequest()) {
             // Still has a request for all networks (interfaces).
@@ -598,7 +601,7 @@
             info.mSocket.destroy();
             // Still notify to unrequester for socket destroy.
             cb.onInterfaceDestroyed(network, info.mSocket);
-            LOGGER.log("Remove socket on net:" + network + " after unrequestSocket");
+            mSharedLog.log("Remove socket on net:" + network + " after unrequestSocket");
         }
 
         // Remove all sockets for tethering interface because these sockets do not have associated
@@ -609,7 +612,7 @@
             info.mSocket.destroy();
             // Still notify to unrequester for socket destroy.
             cb.onInterfaceDestroyed(null /* network */, info.mSocket);
-            LOGGER.log("Remove socket on ifName:" + mTetherInterfaceSockets.keyAt(i)
+            mSharedLog.log("Remove socket on ifName:" + mTetherInterfaceSockets.keyAt(i)
                     + " after unrequestSocket");
         }
         mTetherInterfaceSockets.clear();
@@ -618,10 +621,6 @@
         maybeStopMonitoringSockets();
     }
 
-    /** Dump info to dumpsys */
-    public void dump(PrintWriter pw) {
-        LOGGER.reverseDump(pw);
-    }
 
     /*** Callbacks for listening socket changes */
     public interface SocketCallback {