| /* |
| * Copyright (C) 2015 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 com.android.internal.app; |
| |
| import android.app.Service; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.IRemoteCallback; |
| import android.os.Looper; |
| import android.os.Message; |
| import android.os.RemoteException; |
| |
| import java.util.List; |
| |
| /** |
| * Base class for implementing the resolver service. |
| * @hide |
| */ |
| public abstract class EphemeralResolverService extends Service { |
| public static final String EXTRA_RESOLVE_INFO = "com.android.internal.app.RESOLVE_INFO"; |
| public static final String EXTRA_SEQUENCE = "com.android.internal.app.SEQUENCE"; |
| private Handler mHandler; |
| |
| /** |
| * Called to retrieve resolve info for ephemeral applications. |
| * |
| * @param digestPrefix The hash prefix of the ephemeral's domain. |
| */ |
| protected abstract List<EphemeralResolveInfo> getEphemeralResolveInfoList(int digestPrefix); |
| |
| @Override |
| protected final void attachBaseContext(Context base) { |
| super.attachBaseContext(base); |
| mHandler = new ServiceHandler(base.getMainLooper()); |
| } |
| |
| @Override |
| public final IBinder onBind(Intent intent) { |
| return new IEphemeralResolver.Stub() { |
| @Override |
| public void getEphemeralResolveInfoList( |
| IRemoteCallback callback, int digestPrefix, int sequence) { |
| mHandler.obtainMessage(ServiceHandler.MSG_GET_EPHEMERAL_RESOLVE_INFO, |
| digestPrefix, sequence, callback) |
| .sendToTarget(); |
| } |
| }; |
| } |
| |
| private final class ServiceHandler extends Handler { |
| public static final int MSG_GET_EPHEMERAL_RESOLVE_INFO = 1; |
| |
| public ServiceHandler(Looper looper) { |
| super(looper, null /*callback*/, true /*async*/); |
| } |
| |
| @Override |
| @SuppressWarnings("unchecked") |
| public void handleMessage(Message message) { |
| final int action = message.what; |
| switch (action) { |
| case MSG_GET_EPHEMERAL_RESOLVE_INFO: { |
| final IRemoteCallback callback = (IRemoteCallback) message.obj; |
| final List<EphemeralResolveInfo> resolveInfo = |
| getEphemeralResolveInfoList(message.arg1); |
| final Bundle data = new Bundle(); |
| data.putInt(EXTRA_SEQUENCE, message.arg2); |
| data.putParcelableList(EXTRA_RESOLVE_INFO, resolveInfo); |
| try { |
| callback.sendResult(data); |
| } catch (RemoteException e) { |
| } |
| } break; |
| |
| default: { |
| throw new IllegalArgumentException("Unknown message: " + action); |
| } |
| } |
| } |
| } |
| } |