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JNI binding generator (runtime)
/**
* 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.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import android.app.Activity;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
public class ActivityLauncher extends Activity {
static final String TAG = "JogAmp-ActivityLauncher";
LauncherUtil.DataSet data = null;
boolean dataSet = false;
Class activityClazz = null;
Method mOnCreate, mOnDestroy, mOnPause, mOnRestart, mOnResume,
mOnStart, mOnStop, mSetRootActivity;
Object activityObject = null;
@Override
public void onCreate(final Bundle savedInstanceState) {
Log.d(TAG, "onCreate - S");
super.onCreate(savedInstanceState);
final Uri uri = getIntent().getData();
data = LauncherUtil.DataSet.create(uri);
data.setSystemProperties();
dataSet = true;
final ClassLoader cl = ClassLoaderUtil.createClassLoader(this, data.getSysPackages(), data.getUsrPackages(), null);
if(null != cl) {
try {
activityClazz = Class.forName(data.getActivityName(), true, cl);
Log.d(TAG, "Activity Clazz "+activityClazz);
mOnCreate = activityClazz.getMethod("onCreate", Bundle.class);
mOnDestroy = activityClazz.getMethod("onDestroy");
mOnPause = activityClazz.getMethod("onPause");
mOnRestart = activityClazz.getMethod("onRestart");
mOnResume = activityClazz.getMethod("onResume");
mOnStart = activityClazz.getMethod("onStart");
mOnStop = activityClazz.getMethod("onStop");
mSetRootActivity = activityClazz.getMethod("setRootActivity", Activity.class);
activityObject = createInstance(activityClazz, null);
Log.d(TAG, "Activity Object "+activityObject);
} catch (final Exception e) {
Log.d(TAG, "error: "+e, e);
throw new RuntimeException(e);
}
}
if( null == mOnCreate || null == mOnDestroy || null == mOnPause ||
null == mOnRestart || null == mOnResume ||
null == mSetRootActivity ) {
final RuntimeException e = new RuntimeException("XXX - incomplete method set");
Log.d(TAG, "error: "+e, e);
throw e;
}
callMethod(activityObject, mSetRootActivity, this);
callMethod(activityObject, mOnCreate, savedInstanceState);
Log.d(TAG, "onCreate - X");
}
@Override
public void onStart() {
Log.d(TAG, "onStart - S");
super.onStart();
if( !dataSet && null != data ) {
data.setSystemProperties();
dataSet = true;
}
callMethod(activityObject, mOnStart);
Log.d(TAG, "onStart - X");
}
@Override
public void onRestart() {
Log.d(TAG, "onRestart - S");
super.onRestart();
callMethod(activityObject, mOnRestart);
Log.d(TAG, "onRestart - X");
}
@Override
public void onResume() {
Log.d(TAG, "onResume - S");
super.onResume();
callMethod(activityObject, mOnResume);
Log.d(TAG, "onResume - X");
}
@Override
public void onPause() {
Log.d(TAG, "onPause - S");
callMethod(activityObject, mOnPause);
super.onPause();
Log.d(TAG, "onPause - X");
}
@Override
public void onStop() {
Log.d(TAG, "onStop - S");
callMethod(activityObject, mOnStop);
super.onStop();
if( dataSet && null != data ) {
data.clearSystemProperties();
dataSet = false;
}
Log.d(TAG, "onStop - X");
}
@Override
public void onDestroy() {
Log.d(TAG, "onDestroy - S");
callMethod(activityObject, mOnDestroy);
if(null != data) {
activityObject=null;
mOnCreate=null;
mOnDestroy=null;
mOnPause=null;
mOnRestart=null;
mOnResume=null;
mOnStart=null;
mOnStop=null;
mSetRootActivity=null;
activityClazz = null;
data.clearSystemProperties();
data = null;
}
super.onDestroy();
Log.d(TAG, "onDestroy - X");
}
@Override
public void finish() {
Log.d(TAG, "finish - S");
super.finish();
Log.d(TAG, "finish - X");
}
/**
* @throws JogampRuntimeException if the instance can not be created.
*/
public static final Object createInstance(final Class clazz, final Class[] cstrArgTypes, final Object ... cstrArgs)
throws RuntimeException
{
return createInstance(getConstructor(clazz, cstrArgTypes), cstrArgs);
}
public static final Object createInstance(final Constructor cstr, final Object ... cstrArgs)
throws RuntimeException
{
try {
return cstr.newInstance(cstrArgs);
} catch (final Exception e) {
Throwable t = e;
if (t instanceof InvocationTargetException) {
t = ((InvocationTargetException) t).getTargetException();
}
if (t instanceof Error) {
throw (Error) t;
}
if (t instanceof RuntimeException) {
throw (RuntimeException) t;
}
throw new RuntimeException("can not create instance of "+cstr.getName(), t);
}
}
/**
* @throws JogampRuntimeException if the constructor can not be delivered.
*/
protected static final Constructor getConstructor(final Class clazz, Class ... cstrArgTypes)
throws RuntimeException {
try {
if(null == cstrArgTypes) {
cstrArgTypes = zeroTypes;
}
return clazz.getDeclaredConstructor(cstrArgTypes);
} catch (final NoSuchMethodException ex) {
throw new RuntimeException("Constructor: '" + clazz + "(" + asString(cstrArgTypes) + ")' not found", ex);
}
}
protected static final Class[] zeroTypes = new Class[0];
protected static final String asString(final Class[] argTypes) {
final StringBuilder args = new StringBuilder();
boolean coma = false;
if(null != argTypes) {
for (int i = 0; i < argTypes.length; i++) {
if(coma) {
args.append(", ");
}
args.append(argTypes[i].getName());
coma = true;
}
}
return args.toString();
}
protected static final Object callMethod(final Object instance, final Method method, final Object ... args)
throws RuntimeException
{
try {
return method.invoke(instance, args);
} catch (final Exception e) {
Throwable t = e;
if (t instanceof InvocationTargetException) {
t = ((InvocationTargetException) t).getTargetException();
}
if (t instanceof Error) {
throw (Error) t;
}
if (t instanceof RuntimeException) {
throw (RuntimeException) t;
}
throw new RuntimeException("calling "+method+" failed", t);
}
}
}