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      1 /*
      2  * Copyright (C) 2014 Google Inc. All Rights Reserved.
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.example.android.wearable.speedtracker.db;
     18 
     19 import com.google.android.gms.common.ConnectionResult;
     20 import com.google.android.gms.common.api.GoogleApiClient;
     21 import com.google.android.gms.common.api.ResultCallback;
     22 import com.google.android.gms.wearable.DataApi;
     23 import com.google.android.gms.wearable.DataEvent;
     24 import com.google.android.gms.wearable.DataEventBuffer;
     25 import com.google.android.gms.wearable.DataMap;
     26 import com.google.android.gms.wearable.DataMapItem;
     27 import com.google.android.gms.wearable.Wearable;
     28 import com.google.android.gms.wearable.WearableListenerService;
     29 
     30 import android.net.Uri;
     31 import android.os.Bundle;
     32 import android.util.Log;
     33 
     34 import com.example.android.wearable.speedtracker.LocationDataManager;
     35 import com.example.android.wearable.speedtracker.PhoneApplication;
     36 import com.example.android.wearable.speedtracker.common.Constants;
     37 import com.example.android.wearable.speedtracker.common.LocationEntry;
     38 
     39 import java.util.Calendar;
     40 import java.util.HashSet;
     41 import java.util.Set;
     42 
     43 /**
     44  * A {@link com.google.android.gms.wearable.WearableListenerService} that is responsible for
     45  * reading location data that gets added to the Data Layer storage.
     46  */
     47 public class UpdateService extends WearableListenerService
     48         implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener,
     49         ResultCallback<DataApi.DeleteDataItemsResult> {
     50 
     51     private static final String TAG = "UpdateService";
     52     private LocationDataManager mDataManager;
     53     private GoogleApiClient mGoogleApiClient;
     54     private final Set<Uri> mToBeDeletedUris = new HashSet<Uri>();
     55     public static final String ACTION_NOTIFY = "com.example.android.wearable.speedtracker.Message";
     56     public static final String EXTRA_ENTRY = "entry";
     57     public static final String EXTRA_LOG = "log";
     58 
     59     @Override
     60     public void onCreate() {
     61         super.onCreate();
     62         mGoogleApiClient = new GoogleApiClient.Builder(this)
     63                 .addApi(Wearable.API)
     64                 .addConnectionCallbacks(this)
     65                 .addOnConnectionFailedListener(this)
     66                 .build();
     67         mGoogleApiClient.connect();
     68         mDataManager = ((PhoneApplication) getApplicationContext()).getDataManager();
     69     }
     70 
     71     @Override
     72     public void onDataChanged(DataEventBuffer dataEvents) {
     73         for (DataEvent dataEvent : dataEvents) {
     74             if (dataEvent.getType() == DataEvent.TYPE_CHANGED) {
     75                 Uri dataItemUri = dataEvent.getDataItem().getUri();
     76                 if (Log.isLoggable(TAG, Log.DEBUG)) {
     77                     Log.d(TAG, "Received a data item with uri: " + dataItemUri.getPath());
     78                 }
     79                 if (dataItemUri.getPath().startsWith(Constants.PATH)) {
     80                     DataMap dataMap = DataMapItem.fromDataItem(dataEvent.getDataItem())
     81                             .getDataMap();
     82                     double longitude = dataMap.getDouble(Constants.KEY_LONGITUDE);
     83                     double latitude = dataMap.getDouble(Constants.KEY_LATITUDE);
     84                     long time = dataMap.getLong(Constants.KEY_TIME);
     85                     Calendar calendar = Calendar.getInstance();
     86                     calendar.setTimeInMillis(time);
     87                     mDataManager.addPoint(
     88                             new LocationEntry(calendar, latitude, longitude));
     89                     if (mGoogleApiClient.isConnected()) {
     90                         Wearable.DataApi.deleteDataItems(
     91                                 mGoogleApiClient, dataItemUri).setResultCallback(this);
     92                     } else {
     93                         synchronized (mToBeDeletedUris) {
     94                             mToBeDeletedUris.add(dataItemUri);
     95                         }
     96                     }
     97                 }
     98             }
     99         }
    100     }
    101 
    102     @Override // ConnectionCallbacks
    103     public void onConnected(Bundle bundle) {
    104         if (Log.isLoggable(TAG, Log.DEBUG)) {
    105             Log.d(TAG, "onConnected(): api client is connected now");
    106         }
    107         synchronized (mToBeDeletedUris) {
    108             if (!mToBeDeletedUris.isEmpty()) {
    109                 for (Uri dataItemUri : mToBeDeletedUris) {
    110                     Wearable.DataApi.deleteDataItems(
    111                             mGoogleApiClient, dataItemUri).setResultCallback(this);
    112                 }
    113             }
    114         }
    115     }
    116 
    117     @Override // ConnectionCallbacks
    118     public void onConnectionSuspended(int i) {
    119     }
    120 
    121     @Override // OnConnectionFailedListener
    122     public void onConnectionFailed(ConnectionResult connectionResult) {
    123         Log.e(TAG, "Failed to connect to the Google API client");
    124     }
    125 
    126     @Override // ResultCallback
    127     public void onResult(DataApi.DeleteDataItemsResult deleteDataItemsResult) {
    128         if (!deleteDataItemsResult.getStatus().isSuccess()) {
    129             Log.e(TAG,
    130                     "Failed to delete a dataItem, status code: " + deleteDataItemsResult.getStatus()
    131                             .getStatusCode() + deleteDataItemsResult.getStatus()
    132                             .getStatusMessage());
    133         }
    134     }
    135 }
    136