Update SkDestroyListner to support only monitor UDP sockets close

Bug: 311792075
Test: atest FrameworksNetTests
Change-Id: Ib7749049fb0bd6ce8218ec62bec96584106ad7c5
diff --git a/service-t/src/com/android/server/net/NetworkStatsService.java b/service-t/src/com/android/server/net/NetworkStatsService.java
index 03c64f5..bdb8b71 100644
--- a/service-t/src/com/android/server/net/NetworkStatsService.java
+++ b/service-t/src/com/android/server/net/NetworkStatsService.java
@@ -959,7 +959,7 @@
         /** Create a new SkDestroyListener. */
         public SkDestroyListener makeSkDestroyListener(Consumer<InetDiagMessage> consumer,
                 Handler handler) {
-            return new SkDestroyListener(consumer, handler,
+            return SkDestroyListener.makeSkDestroyListener(consumer, handler,
                     new SharedLog(MAX_SOCKET_DESTROY_LISTENER_LOGS, TAG));
         }
 
diff --git a/service-t/src/com/android/server/net/SkDestroyListener.java b/service-t/src/com/android/server/net/SkDestroyListener.java
index 789e9d6..16606c0 100644
--- a/service-t/src/com/android/server/net/SkDestroyListener.java
+++ b/service-t/src/com/android/server/net/SkDestroyListener.java
@@ -46,14 +46,53 @@
 
     private final Consumer<InetDiagMessage> mSkDestroyCallback;
 
-    SkDestroyListener(final Consumer<InetDiagMessage> consumer, final Handler handler,
-            final SharedLog log) {
+    /**
+     * Return SkDestroyListener that monitor both TCP and UDP socket destroy
+     *
+     * @param consumer The consumer that processes InetDiagMessage
+     * @param handler The Handler on which to poll for messages
+     * @param log A SharedLog to log to.
+     * @return SkDestroyListener
+     */
+    public static SkDestroyListener makeSkDestroyListener(final Consumer<InetDiagMessage> consumer,
+            final Handler handler, final SharedLog log) {
+        return makeSkDestroyListener(consumer, true /* monitorTcpSocket */,
+                true /* monitorUdpSocket */, handler, log);
+    }
+
+    /**
+     * Return SkDestroyListener that monitor socket destroy
+     *
+     * @param consumer The consumer that processes InetDiagMessage
+     * @param monitorTcpSocket {@code true} to monitor TCP socket destroy
+     * @param monitorUdpSocket {@code true} to monitor UDP socket destroy
+     * @param handler The Handler on which to poll for messages
+     * @param log A SharedLog to log to.
+     * @return SkDestroyListener
+     */
+    public static SkDestroyListener makeSkDestroyListener(final Consumer<InetDiagMessage> consumer,
+            final boolean monitorTcpSocket, final boolean monitorUdpSocket,
+            final Handler handler, final SharedLog log) {
+        if (!monitorTcpSocket && !monitorUdpSocket) {
+            throw new IllegalArgumentException(
+                    "Both monitorTcpSocket and monitorUdpSocket can not be false");
+        }
+        int bindGroups = 0;
+        if (monitorTcpSocket) {
+            bindGroups |= 1 << (SKNLGRP_INET_TCP_DESTROY - 1)
+                    | 1 << (SKNLGRP_INET6_TCP_DESTROY - 1);
+        }
+        if (monitorUdpSocket) {
+            bindGroups |= 1 << (SKNLGRP_INET_UDP_DESTROY - 1)
+                    | 1 << (SKNLGRP_INET6_UDP_DESTROY - 1);
+        }
+        return new SkDestroyListener(consumer, bindGroups, handler, log);
+    }
+
+    private SkDestroyListener(final Consumer<InetDiagMessage> consumer, final int bindGroups,
+            final Handler handler, final SharedLog log) {
         super(handler, log, "SkDestroyListener", NETLINK_INET_DIAG,
-                1 << (SKNLGRP_INET_TCP_DESTROY - 1)
-                        | 1 << (SKNLGRP_INET_UDP_DESTROY - 1)
-                        | 1 << (SKNLGRP_INET6_TCP_DESTROY - 1)
-                        | 1 << (SKNLGRP_INET6_UDP_DESTROY - 1),
-                SOCK_RCV_BUF_SIZE);
+                bindGroups, SOCK_RCV_BUF_SIZE);
         mSkDestroyCallback = consumer;
     }
 
diff --git a/tests/unit/java/com/android/server/net/SkDestroyListenerTest.kt b/tests/unit/java/com/android/server/net/SkDestroyListenerTest.kt
index dec71f8..bfe7113 100644
--- a/tests/unit/java/com/android/server/net/SkDestroyListenerTest.kt
+++ b/tests/unit/java/com/android/server/net/SkDestroyListenerTest.kt
@@ -19,6 +19,7 @@
 import android.os.Handler
 import android.os.HandlerThread
 import com.android.net.module.util.SharedLog
+import com.android.server.net.SkDestroyListener.makeSkDestroyListener
 import com.android.testutils.DevSdkIgnoreRunner
 import java.io.PrintWriter
 import org.junit.After
@@ -54,7 +55,7 @@
         doReturn(sharedLog).`when`(sharedLog).forSubComponent(any())
 
         val handler = Handler(handlerThread.looper)
-        val skDestroylistener = SkDestroyListener({} /* consumer */, handler, sharedLog)
+        val skDestroylistener = makeSkDestroyListener({} /* consumer */, handler, sharedLog)
         val pw = PrintWriter(System.out)
         skDestroylistener.dump(pw)