Merge "Add a wrapper for INetworkMonitor." (878a3dd4) · Commits · e / os / android_frameworks_base

services/net/java/android/net/NetworkMonitorManager.java

0 → 100644

+201 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2019 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.annotation.NonNull;
		import android.os.Binder;
		import android.os.RemoteException;
		import android.util.Log;

		/**
		* A convenience wrapper for INetworkMonitor.
		*
		* Wraps INetworkMonitor calls, making them a bit more friendly to use. Currently handles:
		* - Clearing calling identity
		* - Ignoring RemoteExceptions
		* - Converting to stable parcelables
		*
		* By design, all methods on INetworkMonitor are asynchronous oneway IPCs and are thus void. All the
		* wrapper methods in this class return a boolean that callers can use to determine whether
		* RemoteException was thrown.
		*/
		public class NetworkMonitorManager {

		@NonNull private final INetworkMonitor mNetworkMonitor;
		@NonNull private final String mTag;

		public NetworkMonitorManager(@NonNull INetworkMonitor networkMonitorManager,
		@NonNull String tag) {
		mNetworkMonitor = networkMonitorManager;
		mTag = tag;
		}

		public NetworkMonitorManager(@NonNull INetworkMonitor networkMonitorManager) {
		this(networkMonitorManager, NetworkMonitorManager.class.getSimpleName());
		}

		private void log(String s, Throwable e) {
		Log.e(mTag, s, e);
		}

		// CHECKSTYLE:OFF Generated code

		public boolean start() {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.start();
		return true;
		} catch (RemoteException e) {
		log("Error in start", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean launchCaptivePortalApp() {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.launchCaptivePortalApp();
		return true;
		} catch (RemoteException e) {
		log("Error in launchCaptivePortalApp", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean notifyCaptivePortalAppFinished(int response) {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.notifyCaptivePortalAppFinished(response);
		return true;
		} catch (RemoteException e) {
		log("Error in notifyCaptivePortalAppFinished", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean setAcceptPartialConnectivity() {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.setAcceptPartialConnectivity();
		return true;
		} catch (RemoteException e) {
		log("Error in setAcceptPartialConnectivity", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean forceReevaluation(int uid) {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.forceReevaluation(uid);
		return true;
		} catch (RemoteException e) {
		log("Error in forceReevaluation", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean notifyPrivateDnsChanged(PrivateDnsConfigParcel config) {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.notifyPrivateDnsChanged(config);
		return true;
		} catch (RemoteException e) {
		log("Error in notifyPrivateDnsChanged", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean notifyDnsResponse(int returnCode) {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.notifyDnsResponse(returnCode);
		return true;
		} catch (RemoteException e) {
		log("Error in notifyDnsResponse", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean notifyNetworkConnected(LinkProperties lp, NetworkCapabilities nc) {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.notifyNetworkConnected(lp, nc);
		return true;
		} catch (RemoteException e) {
		log("Error in notifyNetworkConnected", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean notifyNetworkDisconnected() {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.notifyNetworkDisconnected();
		return true;
		} catch (RemoteException e) {
		log("Error in notifyNetworkDisconnected", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean notifyLinkPropertiesChanged(LinkProperties lp) {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.notifyLinkPropertiesChanged(lp);
		return true;
		} catch (RemoteException e) {
		log("Error in notifyLinkPropertiesChanged", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean notifyNetworkCapabilitiesChanged(NetworkCapabilities nc) {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.notifyNetworkCapabilitiesChanged(nc);
		return true;
		} catch (RemoteException e) {
		log("Error in notifyNetworkCapabilitiesChanged", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		// CHECKSTYLE:ON Generated code
		}