WearApplication.java

/*
DataLayerListenerService.java
Copyright (c) 2015 NTT DOCOMO,INC.
Released under the MIT license
http://opensource.org/licenses/mit-license.php
 */
package org.deviceconnect.android.deviceplugin.wear;

import android.app.Application;
import android.util.Log;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.wearable.MessageApi;
import com.google.android.gms.wearable.Wearable;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

/**
 * このアプリで共有するGoogleApiClientを保持するアプリケーションクラス.
 */
public class WearApplication extends Application {

    /** Google API Client. */
    private GoogleApiClient mGoogleApiClient;

    /**
     * スレッド管理用クラス.
     */
    private final ExecutorService mExecutorService = Executors.newSingleThreadExecutor();

    @Override
    public void onCreate() {
        super.onCreate();
        init();
    }

    @Override
    public void onTerminate() {
        super.onTerminate();
        destroy();
    }

    /**
     * GoogleApiClientを初期化する.
     */
    public synchronized void init() {
        // Define google play service
        mGoogleApiClient = new GoogleApiClient.Builder(this).addApi(Wearable.API).build();
        // Connect google play service
        mGoogleApiClient.connect();
    }

    /**
     * GoogleApiClientの後始末を行う.
     */
    public synchronized void destroy() {
        mExecutorService.shutdown();

        if (mGoogleApiClient != null) {
            // Disconnect google play service.
            mGoogleApiClient.disconnect();
            mGoogleApiClient = null;
        }
    }

    /**
     * GoogleApiClientを取得する.
     * @return GoogleApiClient
     */
    public synchronized GoogleApiClient getGoogleApiClient() {
        if (mGoogleApiClient == null) {
            init();
        }
        return mGoogleApiClient;
    }


    public void sendMessage(final String destinationId, final String path, final String data) {
        mExecutorService.execute(new Runnable() {
            @Override
            public void run() {
                GoogleApiClient client = mGoogleApiClient;
                if (!client.isConnected()) {
                    ConnectionResult connectionResult = client.blockingConnect(30, TimeUnit.SECONDS);
                    if (!connectionResult.isSuccess()) {
                        if (BuildConfig.DEBUG) {
                            Log.e("WEAR", "Failed to connect google play service.");
                        }
                        return;
                    }
                }

                MessageApi.SendMessageResult result = Wearable.MessageApi.sendMessage(client, destinationId,
                        path, data.getBytes()).await();
                if (!result.getStatus().isSuccess()) {
                    if (BuildConfig.DEBUG) {
                        Log.e("WEAR", "Failed to send a sensor event.");
                    }
                }
            }
        });
    }
}