Integrate with SettingsIntelligence

Bug: 64691432
Test: robotests
Change-Id: Idd20fd66f0289e0d0178bac02b1059c5554673f4

src/com/android/settings/dashboard/suggestions/SuggestionControllerMixin.java

@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2017 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.settings.dashboard.suggestions;
+
+import android.annotation.Nullable;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.ServiceConnection;
+import android.os.IBinder;
+import android.os.RemoteException;
+import android.service.settings.suggestions.ISuggestionService;
+import android.service.settings.suggestions.Suggestion;
+import android.support.annotation.VisibleForTesting;
+import android.util.Log;
+
+import com.android.settingslib.core.lifecycle.Lifecycle;
+import com.android.settingslib.core.lifecycle.LifecycleObserver;
+import com.android.settingslib.core.lifecycle.events.OnStart;
+import com.android.settingslib.core.lifecycle.events.OnStop;
+
+import java.util.List;
+
+/**
+ * Manages IPC communication to SettingsIntelligence for suggestion related services.
+ */
+public class SuggestionControllerMixin implements LifecycleObserver, OnStart, OnStop {
+
+    private static final String TAG = "SuggestionCtrlMixin";
+    private static final boolean DEBUG = false;
+
+    private final Context mContext;
+    private final Intent mServiceIntent;
+    private final ServiceConnection mServiceConnection;
+
+    private ISuggestionService mRemoteService;
+
+    public SuggestionControllerMixin(Context context, Lifecycle lifecycle) {
+        mContext = context.getApplicationContext();
+        mServiceIntent = new Intent().setComponent(
+                new ComponentName(
+                        "com.android.settings.intelligence",
+                        "com.android.settings.intelligence.suggestions.SuggestionService"));
+        mServiceConnection = createServiceConnection();
+        if (lifecycle != null) {
+            lifecycle.addObserver(this);
+        }
+    }
+
+    @Override
+    public void onStart() {
+        if (!isEnabled()) {
+            Log.w(TAG, "Feature not enabled, skipping");
+            return;
+        }
+        mContext.bindServiceAsUser(mServiceIntent, mServiceConnection, Context.BIND_AUTO_CREATE,
+                android.os.Process.myUserHandle());
+    }
+
+    @Override
+    public void onStop() {
+        if (mRemoteService != null) {
+            mRemoteService = null;
+            mContext.unbindService(mServiceConnection);
+        }
+    }
+
+    public boolean isEnabled() {
+        // TODO: Set up feature flag
+        return true;
+    }
+
+    /**
+     * Get setting suggestions.
+     */
+    @Nullable
+    public List<Suggestion> getSuggestions() {
+        if (!isReady()) {
+            return null;
+        }
+        try {
+            return mRemoteService.getSuggestions();
+        } catch (RemoteException e) {
+            Log.w(TAG, "Error when calling getSuggestion()", e);
+            return null;
+        }
+    }
+
+    /**
+     * Whether or not the manager is ready
+     */
+    private boolean isReady() {
+        return mRemoteService != null;
+    }
+
+    @VisibleForTesting
+    void onServiceConnected() {
+        // TODO: Call API to get data from a loader instead of in current thread.
+        final List<Suggestion> data = getSuggestions();
+        Log.d(TAG, "data size " + (data == null ? 0 : data.size()));
+    }
+
+    private void onServiceDisconnected() {
+
+    }
+
+    /**
+     * Create a new {@link ServiceConnection} object to handle service connect/disconnect event.
+     */
+    private ServiceConnection createServiceConnection() {
+        return new ServiceConnection() {
+
+            @Override
+            public void onServiceConnected(ComponentName name, IBinder service) {
+                if (DEBUG) {
+                    Log.d(TAG, "Service is connected");
+                }
+                mRemoteService = ISuggestionService.Stub.asInterface(service);
+                SuggestionControllerMixin.this.onServiceConnected();
+            }
+
+            @Override
+            public void onServiceDisconnected(ComponentName name) {
+                mRemoteService = null;
+                SuggestionControllerMixin.this.onServiceDisconnected();
+            }
+        };
+    }
+
+}