Add InetAddressCompat
Although the InetAddress symbols used by Connectivity are stable core
platform API, and should be usable, the core_current stubs are not yet
part of the module_current API.
Until that is fixed, add an InetAddressCompat utility that calls the
three static methods by reflection.
Test: atest FrameworksNetTests CtsNetTestCases
Bug: 183097033
Change-Id: I797009aeff1d39ae2dc06ef69d2e235689b43c89
diff --git a/framework/src/android/net/InetAddressCompat.java b/framework/src/android/net/InetAddressCompat.java
new file mode 100644
index 0000000..8404441
--- /dev/null
+++ b/framework/src/android/net/InetAddressCompat.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.net;
+
+import android.util.Log;
+
+import java.lang.reflect.InvocationTargetException;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+
+/**
+ * Compatibility utility for InetAddress core platform APIs.
+ *
+ * Connectivity has access to such APIs, but they are not part of the module_current stubs yet
+ * (only core_current). Most stable core platform APIs are included manually in the connectivity
+ * build rules, but because InetAddress is also part of the base java SDK that is earlier on the
+ * classpath, the extra core platform APIs are not seen.
+ *
+ * TODO (b/183097033): remove this utility as soon as core_current is part of module_current
+ * @hide
+ */
+public class InetAddressCompat {
+
+ /**
+ * @see InetAddress#clearDnsCache()
+ */
+ public static void clearDnsCache() {
+ try {
+ InetAddress.class.getMethod("clearDnsCache").invoke(null);
+ } catch (IllegalAccessException | InvocationTargetException | NoSuchMethodException e) {
+ Log.wtf(InetAddressCompat.class.getSimpleName(), "Error clearing DNS cache", e);
+ }
+ }
+
+ /**
+ * @see InetAddress#getAllByNameOnNet(String, int)
+ */
+ public static InetAddress[] getAllByNameOnNet(String host, int netId) throws
+ UnknownHostException {
+ try {
+ return (InetAddress[]) InetAddress.class.getMethod("getAllByNameOnNet",
+ String.class, int.class).invoke(null, host, netId);
+ } catch (IllegalAccessException | InvocationTargetException | NoSuchMethodException e) {
+ Log.wtf(InetAddressCompat.class.getSimpleName(), "Error calling getAllByNameOnNet", e);
+ throw new IllegalStateException("Error querying via getAllNameOnNet", e);
+ }
+ }
+
+ /**
+ * @see InetAddress#getByNameOnNet(String, int)
+ */
+ public static InetAddress getByNameOnNet(String host, int netId) throws
+ UnknownHostException {
+ try {
+ return (InetAddress) InetAddress.class.getMethod("getByNameOnNet",
+ String.class, int.class).invoke(null, host, netId);
+ } catch (IllegalAccessException | InvocationTargetException | NoSuchMethodException e) {
+ Log.wtf(InetAddressCompat.class.getSimpleName(), "Error calling getAllByNameOnNet", e);
+ throw new IllegalStateException("Error querying via getByNameOnNet", e);
+ }
+ }
+}