Add an isListen method to NetworkRequests.

This allows simplification of the ConnectivityService code.

Bug: 23113288
Change-Id: I124544b99c5a920124e9a3d31cda8c6d2abc21fd
diff --git a/core/java/android/net/NetworkRequest.java b/core/java/android/net/NetworkRequest.java
index 847d82b..4501f7b 100644
--- a/core/java/android/net/NetworkRequest.java
+++ b/core/java/android/net/NetworkRequest.java
@@ -284,6 +284,15 @@
         };
 
     /**
+     * Returns true iff. the contained NetworkRequest is of type LISTEN.
+     *
+     * @hide
+     */
+    public boolean isListen() {
+        return type == Type.LISTEN;
+    }
+
+    /**
      * Returns true iff. the contained NetworkRequest is one that:
      *
      *     - should be associated with at most one satisfying network
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index ef41f49..051cb2d 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -2283,7 +2283,7 @@
                 if (VDBG) log("NetworkFactory connected");
                 // A network factory has connected.  Send it all current NetworkRequests.
                 for (NetworkRequestInfo nri : mNetworkRequests.values()) {
-                    if (!nri.request.isRequest()) continue;
+                    if (nri.request.isListen()) continue;
                     NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId);
                     ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK,
                             (nai != null ? nai.getCurrentScore() : 0), 0, nri.request);
@@ -2425,7 +2425,7 @@
     private void handleRegisterNetworkRequest(NetworkRequestInfo nri) {
         mNetworkRequests.put(nri.request, nri);
         mNetworkRequestInfoLogs.log("REGISTER " + nri);
-        if (!nri.request.isRequest()) {
+        if (nri.request.isListen()) {
             for (NetworkAgentInfo network : mNetworkAgentInfos.values()) {
                 if (nri.request.networkCapabilities.hasSignalStrength() &&
                         network.satisfiesImmutableCapabilitiesOf(nri.request)) {
@@ -4573,7 +4573,7 @@
         for (int i = 0; i < nai.numNetworkRequests(); i++) {
             NetworkRequest nr = nai.requestAt(i);
             // Don't send listening requests to factories. b/17393458
-            if (!nr.isRequest()) continue;
+            if (nr.isListen()) continue;
             sendUpdatedScoreToFactories(nr, nai.getCurrentScore());
         }
     }
@@ -4667,7 +4667,7 @@
             for (int i = 0; i < nai.numNetworkRequests(); i++) {
                 NetworkRequest nr = nai.requestAt(i);
                 // Ignore listening requests.
-                if (!nr.isRequest()) continue;
+                if (nr.isListen()) continue;
                 loge("Dead network still had at least " + nr);
                 break;
             }
@@ -4759,7 +4759,7 @@
             // check if it satisfies the NetworkCapabilities
             if (VDBG) log("  checking if request is satisfied: " + nri.request);
             if (satisfies) {
-                if (!nri.request.isRequest()) {
+                if (nri.request.isListen()) {
                     // This is not a request, it's a callback listener.
                     // Add it to newNetwork regardless of score.
                     if (newNetwork.addRequest(nri.request)) addedRequests.add(nri);