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112 lines
3.9 KiB
Java
112 lines
3.9 KiB
Java
/**
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* Copyright (C) 2011 Whisper Systems
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.thoughtcrime.securesms.service;
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import java.util.LinkedList;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.net.ConnectivityManager;
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import android.net.NetworkInfo;
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import android.os.PowerManager;
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import android.os.PowerManager.WakeLock;
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import android.util.Log;
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public abstract class MmscProcessor {
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private static final String FEATURE_ENABLE_MMS = "enableMMS";
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private static final int APN_ALREADY_ACTIVE = 0;
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public static final int TYPE_MOBILE_MMS = 2;
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private ConnectivityManager connectivityManager;
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private ConnectivityListener connectivityListener;
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private WakeLock wakeLock;
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protected final Context context;
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public MmscProcessor(Context context) {
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this.context = context;
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PowerManager powerManager = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
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this.connectivityManager = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
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this.wakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "MMS Connection");
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this.wakeLock.setReferenceCounted(false);
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}
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protected boolean isConnected() {
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NetworkInfo info = connectivityManager.getNetworkInfo(TYPE_MOBILE_MMS);
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Log.w("MmsService", "NetworkInfo: " + info);
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if ((info == null) || (info.getType() != TYPE_MOBILE_MMS) || !info.isConnected())
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return false;
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return true;
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}
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protected abstract String getConnectivityAction();
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protected void issueConnectivityRequest() {
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int status = connectivityManager.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, FEATURE_ENABLE_MMS);
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if (status == APN_ALREADY_ACTIVE) {
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issueConnectivityChange();
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} else if (connectivityListener == null) {
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IntentFilter filter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
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connectivityListener = new ConnectivityListener();
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context.registerReceiver(connectivityListener, filter);
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wakeLock.acquire();
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}
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}
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protected boolean isConnectivityPossible() {
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NetworkInfo networkInfo = connectivityManager.getNetworkInfo(TYPE_MOBILE_MMS);
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Log.w("MmsService", "Got network info: " + networkInfo);
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return networkInfo != null && networkInfo.isAvailable();
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}
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protected void finishConnectivity() {
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Log.w("MmsService", "Calling stop using network feature!");
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connectivityManager.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, FEATURE_ENABLE_MMS);
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if (connectivityListener != null) {
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context.unregisterReceiver(connectivityListener);
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connectivityListener = null;
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}
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if (this.wakeLock.isHeld())
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this.wakeLock.release();
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}
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private void issueConnectivityChange() {
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Intent intent = new Intent(context, SendReceiveService.class);
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intent.setAction(getConnectivityAction());
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context.startService(intent);
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}
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private class ConnectivityListener extends BroadcastReceiver {
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@Override
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public void onReceive(Context context, Intent intent) {
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Log.w("MmsService", "Dispatching connectivity change...");
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issueConnectivityChange();
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Log.w("MmsService", "Dispatched...");
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}
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}
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}
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