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/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko.util;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.support.annotation.Nullable;
import android.support.annotation.NonNull;
import android.telephony.TelephonyManager;
public class NetworkUtils {
/*
* Keep the below constants in sync with
* http://dxr.mozilla.org/mozilla-central/source/netwerk/base/nsINetworkLinkService.idl
*/
public enum ConnectionSubType {
CELL_2G("2g"),
CELL_3G("3g"),
CELL_4G("4g"),
ETHERNET("ethernet"),
WIFI("wifi"),
WIMAX("wimax"),
UNKNOWN("unknown");
public final String value;
ConnectionSubType(String value) {
this.value = value;
}
}
/*
* Keep the below constants in sync with
* http://dxr.mozilla.org/mozilla-central/source/netwerk/base/nsINetworkLinkService.idl
*/
public enum NetworkStatus {
UP("up"),
DOWN("down"),
UNKNOWN("unknown");
public final String value;
NetworkStatus(String value) {
this.value = value;
}
}
// Connection Type defined in Network Information API v3.
// See Bug 1270401 - current W3C Spec (Editor's Draft) is different, it also contains wimax, mixed, unknown.
// W3C spec: http://w3c.github.io/netinfo/#the-connectiontype-enum
public enum ConnectionType {
CELLULAR(0),
BLUETOOTH(1),
ETHERNET(2),
WIFI(3),
OTHER(4),
NONE(5);
public final int value;
ConnectionType(int value) {
this.value = value;
}
}
/**
* Indicates whether network connectivity exists and it is possible to establish connections and pass data.
*/
public static boolean isConnected(@NonNull Context context) {
return isConnected((ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE));
}
public static boolean isConnected(ConnectivityManager connectivityManager) {
if (connectivityManager == null) {
return false;
}
final NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
return networkInfo != null && networkInfo.isConnected();
}
/**
* For mobile connections, maps particular connection subtype to a general 2G, 3G, 4G bucket.
*/
public static ConnectionSubType getConnectionSubType(ConnectivityManager connectivityManager) {
if (connectivityManager == null) {
return ConnectionSubType.UNKNOWN;
}
final NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
if (networkInfo == null) {
return ConnectionSubType.UNKNOWN;
}
switch (networkInfo.getType()) {
case ConnectivityManager.TYPE_ETHERNET:
return ConnectionSubType.ETHERNET;
case ConnectivityManager.TYPE_MOBILE:
return getGenericMobileSubtype(networkInfo.getSubtype());
case ConnectivityManager.TYPE_WIMAX:
return ConnectionSubType.WIMAX;
case ConnectivityManager.TYPE_WIFI:
return ConnectionSubType.WIFI;
default:
return ConnectionSubType.UNKNOWN;
}
}
public static ConnectionType getConnectionType(ConnectivityManager connectivityManager) {
if (connectivityManager == null) {
return ConnectionType.NONE;
}
final NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
if (networkInfo == null) {
return ConnectionType.NONE;
}
switch (networkInfo.getType()) {
case ConnectivityManager.TYPE_BLUETOOTH:
return ConnectionType.BLUETOOTH;
case ConnectivityManager.TYPE_ETHERNET:
return ConnectionType.ETHERNET;
// Fallthrough, MOBILE and WIMAX both map to CELLULAR.
case ConnectivityManager.TYPE_MOBILE:
case ConnectivityManager.TYPE_WIMAX:
return ConnectionType.CELLULAR;
case ConnectivityManager.TYPE_WIFI:
return ConnectionType.WIFI;
default:
return ConnectionType.OTHER;
}
}
public static NetworkStatus getNetworkStatus(ConnectivityManager connectivityManager) {
if (connectivityManager == null) {
return NetworkStatus.UNKNOWN;
}
if (isConnected(connectivityManager)) {
return NetworkStatus.UP;
}
return NetworkStatus.DOWN;
}
private static ConnectionSubType getGenericMobileSubtype(int subtype) {
switch (subtype) {
// 2G types: fallthrough 5x
case TelephonyManager.NETWORK_TYPE_GPRS:
case TelephonyManager.NETWORK_TYPE_EDGE:
case TelephonyManager.NETWORK_TYPE_CDMA:
case TelephonyManager.NETWORK_TYPE_1xRTT:
case TelephonyManager.NETWORK_TYPE_IDEN:
return ConnectionSubType.CELL_2G;
// 3G types: fallthrough 9x
case TelephonyManager.NETWORK_TYPE_UMTS:
case TelephonyManager.NETWORK_TYPE_EVDO_0:
case TelephonyManager.NETWORK_TYPE_EVDO_A:
case TelephonyManager.NETWORK_TYPE_HSDPA:
case TelephonyManager.NETWORK_TYPE_HSUPA:
case TelephonyManager.NETWORK_TYPE_HSPA:
case TelephonyManager.NETWORK_TYPE_EVDO_B:
case TelephonyManager.NETWORK_TYPE_EHRPD:
case TelephonyManager.NETWORK_TYPE_HSPAP:
return ConnectionSubType.CELL_3G;
// 4G - just one type!
case TelephonyManager.NETWORK_TYPE_LTE:
return ConnectionSubType.CELL_4G;
default:
return ConnectionSubType.UNKNOWN;
}
}
}
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