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/*
* Copyright (C) 2011 The CyanogenMod Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.net.wimax;
import dalvik.system.DexClassLoader;
import android.content.Context;
import android.content.ContextWrapper;
import android.os.Handler;
import android.os.IBinder;
import android.os.ServiceManager;
import android.util.Log;
import android.provider.Settings;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
/**
* {@hide}
*/
public class WimaxHelper {
private static final String TAG = "WimaxHelper";
private static final String WIMAX_CONTROLLER_CLASSNAME = "com.htc.net.wimax.WimaxController";
private static final String WIMAX_MANAGER_CLASSNAME = "android.net.fourG.wimax.Wimax4GManager";
private static DexClassLoader sWimaxClassLoader;
private static String sWimaxManagerClassname, sIsWimaxEnabledMethodname,
sSetWimaxEnabledMethodname, sGetWimaxStateMethodname;
public static boolean isWimaxSupported(Context context) {
return context.getResources().getBoolean(
com.android.internal.R.bool.config_wimaxEnabled);
}
public static DexClassLoader getWimaxClassLoader(Context context) {
if (isWimaxSupported(context)) {
if (sWimaxClassLoader == null) {
sWimaxManagerClassname = context.getResources().getString(
com.android.internal.R.string.config_wimaxManagerClassname);
// WimaxController::getWimaxState == Wimax4GManager::get4GState.
// However, Wimax4GManager also implements a different getWimaxState
// method, which returns a WimaxState object describing the connection
// state, not the enabled state. Other methods are similarly renamed.
if (sWimaxManagerClassname.equals(WIMAX_CONTROLLER_CLASSNAME)) {
sIsWimaxEnabledMethodname = "isWimaxEnabled";
sSetWimaxEnabledMethodname = "setWimaxEnabled";
sGetWimaxStateMethodname = "getWimaxState";
} else if (sWimaxManagerClassname.equals(WIMAX_MANAGER_CLASSNAME)) {
sIsWimaxEnabledMethodname = "is4GEnabled";
sSetWimaxEnabledMethodname = "set4GEnabled";
sGetWimaxStateMethodname = "get4GState";
}
String wimaxJarLocation = context.getResources().getString(
com.android.internal.R.string.config_wimaxServiceJarLocation);
String wimaxLibLocation = context.getResources().getString(
com.android.internal.R.string.config_wimaxNativeLibLocation);
sWimaxClassLoader = new DexClassLoader(wimaxJarLocation,
new ContextWrapper(context).getCacheDir().getAbsolutePath(),
wimaxLibLocation,ClassLoader.getSystemClassLoader());
}
return sWimaxClassLoader;
}
return null;
}
public static Object createWimaxService(Context context, Handler handler) {
Object controller = null;
try {
DexClassLoader wimaxClassLoader = getWimaxClassLoader(context);
if (sWimaxManagerClassname.equals(WIMAX_CONTROLLER_CLASSNAME)) {
// Load supersonic's and speedy's WimaxController.
IBinder b = ServiceManager.getService(WimaxManagerConstants.WIMAX_SERVICE);
if (b != null) {
Class<?> klass = wimaxClassLoader.loadClass("com.htc.net.wimax.IWimaxController$Stub");
if (klass != null) {
Method asInterface = klass.getMethod("asInterface", IBinder.class);
Object wc = asInterface.invoke(null, b);
if (wc != null) {
klass = wimaxClassLoader.loadClass(WIMAX_CONTROLLER_CLASSNAME);
if (klass != null) {
Constructor<?> ctor = klass.getDeclaredConstructors()[1];
controller = ctor.newInstance(wc, handler);
}
}
}
}
} else if (sWimaxManagerClassname.equals(WIMAX_MANAGER_CLASSNAME)) {
// Load crespo4g's (and epicmtd's) Wimax4GManager.
// Note that crespo4g's implementation grabs WIMAX_SERVICE internally, so
// it doesn't need to be passed in. Other implementations (may) require
// WIMAX_SERVICE to be grabbed externally, so check Wimax4GManager::<init>.
Class<?> klass = wimaxClassLoader.loadClass(WIMAX_MANAGER_CLASSNAME);
if (klass != null) {
Constructor<?> ctor = klass.getDeclaredConstructors()[0];
controller = ctor.newInstance();
}
}
} catch (Exception e) {
Log.e(TAG, "Unable to create WimaxController instance", e);
}
return controller;
}
public static boolean isWimaxEnabled(Context context) {
boolean ret = false;
try {
Object wimaxService = context.getSystemService(WimaxManagerConstants.WIMAX_SERVICE);
Method m = wimaxService.getClass().getMethod(sIsWimaxEnabledMethodname);
ret = (Boolean) m.invoke(wimaxService);
} catch (Exception e) {
Log.e(TAG, "Unable to get WiMAX enabled state!", e);
}
return ret;
}
public static boolean setWimaxEnabled(Context context, boolean enabled) {
boolean ret = false;
try {
Object wimaxService = context.getSystemService(WimaxManagerConstants.WIMAX_SERVICE);
Method m = wimaxService.getClass().getMethod(sSetWimaxEnabledMethodname, boolean.class);
ret = (Boolean) m.invoke(wimaxService, enabled);
if (ret)
Settings.Secure.putInt(context.getContentResolver(),
Settings.Secure.WIMAX_ON, (Boolean) enabled ? 1 : 0);
} catch (Exception e) {
Log.e(TAG, "Unable to set WiMAX state!", e);
}
return ret;
}
public static int getWimaxState(Context context) {
int ret = 0;
try {
Object wimaxService = context.getSystemService(WimaxManagerConstants.WIMAX_SERVICE);
Method m = wimaxService.getClass().getMethod(sGetWimaxStateMethodname);
ret = (Integer) m.invoke(wimaxService);
} catch (Exception e) {
Log.e(TAG, "Unable to get WiMAX state!", e);
}
return ret;
}
public static boolean wimaxRescan(Context context) {
boolean ret = false;
try {
Object wimaxService = context.getSystemService(WimaxManagerConstants.WIMAX_SERVICE);
Method wimaxRescan = wimaxService.getClass().getMethod("wimaxRescan");
if (wimaxRescan != null) {
wimaxRescan.invoke(wimaxService);
ret = true;
}
} catch (Exception e) {
Log.e(TAG, "Unable to perform WiMAX rescan!", e);
}
return ret;
}
private static Object getWimaxInfo(Context context) {
Object wimaxInfo = null;
try {
Object wimaxService = context.getSystemService(WimaxManagerConstants.WIMAX_SERVICE);
Method getConnectionInfo = wimaxService.getClass().getMethod("getConnectionInfo");
wimaxInfo = getConnectionInfo.invoke(wimaxService);
} catch (Exception e) {
Log.e(TAG, "Unable to get a WimaxInfo object!", e);
}
return wimaxInfo;
}
}
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