The Tor Browser: mobile/android/thirdparty/com/squareup/picasso/PicassoExecutorService.java@fc2d59ddac77

     1 /*

     2  * Copyright (C) 2013 Square, Inc.

     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 package com.squareup.picasso;

    18 import android.net.ConnectivityManager;

    19 import android.net.NetworkInfo;

    20 import android.telephony.TelephonyManager;

    21 import java.util.concurrent.LinkedBlockingQueue;

    22 import java.util.concurrent.ThreadPoolExecutor;

    23 import java.util.concurrent.TimeUnit;

    25 /**

    26  * The default {@link java.util.concurrent.ExecutorService} used for new {@link Picasso} instances.

    27  * <p/>

    28  * Exists as a custom type so that we can differentiate the use of defaults versus a user-supplied

    29  * instance.

    30  */

    31 class PicassoExecutorService extends ThreadPoolExecutor {

    32   private static final int DEFAULT_THREAD_COUNT = 3;

    34   PicassoExecutorService() {

    35     super(DEFAULT_THREAD_COUNT, DEFAULT_THREAD_COUNT, 0, TimeUnit.MILLISECONDS,

    36         new LinkedBlockingQueue<Runnable>(), new Utils.PicassoThreadFactory());

    37   }

    39   void adjustThreadCount(NetworkInfo info) {

    40     if (info == null || !info.isConnectedOrConnecting()) {

    41       setThreadCount(DEFAULT_THREAD_COUNT);

    42       return;

    43     }

    44     switch (info.getType()) {

    45       case ConnectivityManager.TYPE_WIFI:

    46       case ConnectivityManager.TYPE_WIMAX:

    47       case ConnectivityManager.TYPE_ETHERNET:

    48         setThreadCount(4);

    49         break;

    50       case ConnectivityManager.TYPE_MOBILE:

    51         switch (info.getSubtype()) {

    52           case TelephonyManager.NETWORK_TYPE_LTE:  // 4G

    53           case TelephonyManager.NETWORK_TYPE_HSPAP:

    54           case TelephonyManager.NETWORK_TYPE_EHRPD:

    55             setThreadCount(3);

    56             break;

    57           case TelephonyManager.NETWORK_TYPE_UMTS: // 3G

    58           case TelephonyManager.NETWORK_TYPE_CDMA:

    59           case TelephonyManager.NETWORK_TYPE_EVDO_0:

    60           case TelephonyManager.NETWORK_TYPE_EVDO_A:

    61           case TelephonyManager.NETWORK_TYPE_EVDO_B:

    62             setThreadCount(2);

    63             break;

    64           case TelephonyManager.NETWORK_TYPE_GPRS: // 2G

    65           case TelephonyManager.NETWORK_TYPE_EDGE:

    66             setThreadCount(1);

    67             break;

    68           default:

    69             setThreadCount(DEFAULT_THREAD_COUNT);

    70         }

    71         break;

    72       default:

    73         setThreadCount(DEFAULT_THREAD_COUNT);

    74     }

    75   }

    77   private void setThreadCount(int threadCount) {

    78     setCorePoolSize(threadCount);

    79     setMaximumPoolSize(threadCount);

    80   }

    81 }

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