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/**
* Copyright 2011 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package jogamp.android.launcher;
import java.io.File;
import java.lang.ref.WeakReference;
import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.util.Log;
import dalvik.system.DexClassLoader;
public class ClassLoaderUtil {
private static final String TAG = "JogampClassLoader";
public static final String packageGlueGen = "com.jogamp.common";
public static final String packageJogl = "javax.media.opengl"; // FIXME: a 'performance' hack
public static final String dexPathName= "jogampDex";
private static LauncherTempFileCache tmpFileCache = null;
private static ClassLoader jogAmpClassLoader = null;
/**
*
* @param ctx
* @param userPackageNames list of user package names, the last entry shall reflect the Activity
* @return
*/
public static synchronized ClassLoader createJogampClassLoaderSingleton(Context ctx, List<String> userPackageNames) {
if(null==jogAmpClassLoader) {
if(null!=tmpFileCache) {
throw new InternalError("XXX0");
}
if(!LauncherTempFileCache.initSingleton(ctx)) {
throw new InternalError("TempFileCache initialization error");
}
tmpFileCache = new LauncherTempFileCache();
if(!tmpFileCache.isValid()) {
throw new InternalError("TempFileCache instantiation error");
}
final ApplicationInfo ai = ctx.getApplicationInfo();
Log.d(TAG, "S: userPackageName: "+userPackageNames+", dataDir: "+ai.dataDir+", nativeLibraryDir: "+ai.nativeLibraryDir);
final String appDir = new File(ai.dataDir).getParent();
final String libSub = ai.nativeLibraryDir.substring(ai.nativeLibraryDir.lastIndexOf('/')+1);
Log.d(TAG, "S: appDir: "+appDir+", libSub: "+libSub);
final String libPathName = appDir + "/" + packageGlueGen + "/" + libSub + "/:" +
appDir + "/" + packageJogl + "/" + libSub + "/" ;
Log.d(TAG, "S: libPath: "+libPathName);
String apkGlueGen = null;
String apkJogl = null;
try {
apkGlueGen = ctx.getPackageManager().getApplicationInfo(packageGlueGen,0).sourceDir;
apkJogl = ctx.getPackageManager().getApplicationInfo(packageJogl,0).sourceDir;
} catch (PackageManager.NameNotFoundException e) {
Log.d(TAG, "error: "+e, e);
}
if(null == apkGlueGen || null == apkJogl) {
Log.d(TAG, "not found: gluegen <"+apkGlueGen+">, jogl <"+apkJogl+">");
return null;
}
final String cp = apkGlueGen + ":" + apkJogl ;
Log.d(TAG, "jogamp cp: " + cp);
final File dexPath = new File(tmpFileCache.getTempDir(), dexPathName);
Log.d(TAG, "jogamp dexPath: " + dexPath.getAbsolutePath());
dexPath.mkdir();
jogAmpClassLoader = new DexClassLoader(cp, dexPath.getAbsolutePath(), libPathName, ctx.getClassLoader());
} else {
if(null==tmpFileCache) {
throw new InternalError("XXX1");
}
}
StringBuilder userAPKs = new StringBuilder();
int numUserAPKs = 0;
String lastUserPackageName = null; // the very last one reflects the Activity
for(Iterator<String> i=userPackageNames.iterator(); i.hasNext(); ) {
lastUserPackageName = i.next();
String userAPK = null;
try {
userAPK = ctx.getPackageManager().getApplicationInfo(lastUserPackageName,0).sourceDir;
} catch (PackageManager.NameNotFoundException e) {
Log.d(TAG, "error: "+e, e);
}
if(null != userAPK) {
numUserAPKs++;
if(numUserAPKs>0) {
userAPKs.append(":");
}
userAPKs.append(userAPK);
Log.d(TAG, "APK found: <"+lastUserPackageName+"> -> <"+userAPK+">");
} else {
Log.d(TAG, "APK not found: <"+lastUserPackageName+">");
}
}
if( userPackageNames.size()!=numUserAPKs ) {
Log.d(TAG, "APKs incomplete, abort");
return null;
}
final String userAPKs_s = userAPKs.toString();
Log.d(TAG, "user cp: " + userAPKs_s);
final File dexPath = new File(tmpFileCache.getTempDir(), lastUserPackageName);
Log.d(TAG, "user dexPath: " + dexPath.getAbsolutePath());
dexPath.mkdir();
ClassLoader cl = new DexClassLoader(userAPKs_s, dexPath.getAbsolutePath(), null, jogAmpClassLoader);
Log.d(TAG, "cl: " + cl);
return cl;
}
public boolean setAPKClassLoader(String activityPackageName, ClassLoader classLoader)
{
try {
Field mMainThread = getField(Activity.class, "mMainThread");
Object mainThread = mMainThread.get(this);
Class<?> threadClass = mainThread.getClass();
Field mPackages = getField(threadClass, "mPackages");
@SuppressWarnings("unchecked")
HashMap<String,?> map = (HashMap<String,?>) mPackages.get(mainThread);
WeakReference<?> ref = (WeakReference<?>) map.get(activityPackageName);
Object apk = ref.get();
Class<?> apkClass = apk.getClass();
Field mClassLoader = getField(apkClass, "mClassLoader");
mClassLoader.set(apk, classLoader);
Log.d(TAG, "setAPKClassLoader: OK");
return true;
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
Log.d(TAG, "setAPKClassLoader: FAILED");
return false;
}
private Field getField(Class<?> cls, String name)
{
for (Field field: cls.getDeclaredFields())
{
if (!field.isAccessible()) {
field.setAccessible(true);
}
if (field.getName().equals(name)) {
return field;
}
}
return null;
}
}
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