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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.util.Arrays;
import java.util.Iterator;
import java.util.List;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.util.Log;
public class ClassLoaderUtil {
private static final String TAG = "JogampClassLoader";
// FIXME: Need to generalize this .. (Note: native lib resources must be cached!)
private static final String[] packagesJogAmp = { "com.jogamp.common", "javax.media.opengl" };
private static ClassLoader jogAmpClassLoader = null;
// location where optimized dex files will be written
private static final String dexPathName= "jogampDex";
private static File dexPath = null;
private static LauncherTempFileCache tmpFileCache = null;
private static final String PATH_SEP = "/";
private static final String ELEM_SEP = ":";
private static synchronized void init(Context ctx) {
if(null == tmpFileCache) {
if(!LauncherTempFileCache.initSingleton(ctx)) {
throw new InternalError("TempFileCache initialization error");
}
tmpFileCache = new LauncherTempFileCache();
if(!tmpFileCache.isValid()) {
throw new InternalError("TempFileCache instantiation error");
}
dexPath = new File(tmpFileCache.getTempDir(), dexPathName);
Log.d(TAG, "jogamp dexPath: " + dexPath.getAbsolutePath());
dexPath.mkdir();
}
}
public static synchronized ClassLoader createClassLoader(Context ctx, List<String> userPackageNames, boolean addLibPath) {
return createClassLoader(ctx, userPackageNames, addLibPath, null);
}
public static synchronized ClassLoader createClassLoader(Context ctx, List<String> userPackageNames,
boolean addLibPath, ClassLoader parent) {
init(ctx);
if(null==jogAmpClassLoader) {
jogAmpClassLoader = createClassLoaderImpl(ctx, Arrays.asList(packagesJogAmp), true,
(null != parent ) ? parent : ctx.getClassLoader());
}
parent = jogAmpClassLoader;
return createClassLoaderImpl(ctx, userPackageNames, addLibPath, jogAmpClassLoader);
}
/**
*
* @param ctx
* @param userPackageNames list of user package names, the last entry shall reflect the Activity
* @return
*/
private static synchronized ClassLoader createClassLoaderImpl(Context ctx, List<String> userPackageNames,
boolean addLibPath, ClassLoader parent) {
final ApplicationInfo appInfo = ctx.getApplicationInfo();
final String appDir = new File(appInfo.dataDir).getParent();
final String libSub = appInfo.nativeLibraryDir.substring(appInfo.nativeLibraryDir.lastIndexOf('/')+1);
Log.d(TAG, "S: userPackageName: "+userPackageNames+"; appName "+appInfo.name+", appDir "+appDir+", nativeLibraryDir: "+appInfo.nativeLibraryDir+"; dataDir: "+appInfo.dataDir+", libSub "+libSub);
StringBuilder apks = new StringBuilder();
StringBuilder libs = new StringBuilder();
int apkCount = 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) {
if(apkCount>0) {
apks.append(ELEM_SEP);
if(addLibPath) {
libs.append(ELEM_SEP);
}
}
apks.append(userAPK);
if(addLibPath) {
libs.append(appDir).append(PATH_SEP).append(lastUserPackageName).append(PATH_SEP).append(libSub).append(PATH_SEP);
}
Log.d(TAG, "APK found: <"+lastUserPackageName+"> -> <"+userAPK+">");
apkCount++;
} else {
Log.d(TAG, "APK not found: <"+lastUserPackageName+">");
}
}
if( userPackageNames.size()!=apkCount ) {
Log.d(TAG, "APKs incomplete, abort");
return null;
}
// return new TraceDexClassLoader(apks.toString(), dexPath.getAbsolutePath(), libs.toString(), parent);
return new AssetDexClassLoader(apks.toString(), dexPath.getAbsolutePath(), libs.toString(), parent);
}
/***
*
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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