package org.opendaylight.controller.sal.binding.impl.util;
-
-
import java.util.concurrent.Callable;
+import java.util.concurrent.locks.Lock;
import static com.google.common.base.Preconditions.*;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
+import java.util.List;
+
+import com.google.common.base.Optional;
+
+public final class ClassLoaderUtils {
+
+ private ClassLoaderUtils() {
+ throw new UnsupportedOperationException("Utility class");
+ }
+
+ public static <V> V withClassLoader(ClassLoader cls, Callable<V> function) throws Exception {
+ return withClassLoaderAndLock(cls, Optional.<Lock> absent(), function);
+ }
-public class ClassLoaderUtils {
-
- public static <V> V withClassLoader(ClassLoader cls,Callable<V> function) throws Exception {
- checkNotNull(cls);
- checkNotNull(function);
+ public static <V> V withClassLoaderAndLock(ClassLoader cls, Lock lock, Callable<V> function) throws Exception {
+ checkNotNull(lock, "Lock should not be null");
+ return withClassLoaderAndLock(cls, Optional.of(lock), function);
+ }
+
+ public static <V> V withClassLoaderAndLock(ClassLoader cls, Optional<Lock> lock, Callable<V> function)
+ throws Exception {
+ checkNotNull(cls, "Classloader should not be null");
+ checkNotNull(function, "Function should not be null");
+ if (lock.isPresent()) {
+ lock.get().lock();
+ }
ClassLoader oldCls = Thread.currentThread().getContextClassLoader();
try {
Thread.currentThread().setContextClassLoader(cls);
- V result = function.call();
- Thread.currentThread().setContextClassLoader(oldCls);
- return result;
- } catch (Exception e) {
+ return function.call();
+ } finally {
Thread.currentThread().setContextClassLoader(oldCls);
- throw new Exception(e);
+ if (lock.isPresent()) {
+ lock.get().unlock();
+ }
}
}
- public static Object construct(Constructor<? extends Object> constructor, ArrayList<Object> objects) throws InstantiationException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {
- Object[] initargs = objects.toArray(new Object[]{});
- return constructor.newInstance(initargs);
+ public static Object construct(Constructor<? extends Object> constructor, List<Object> objects)
+ throws InstantiationException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {
+ Object[] initargs = objects.toArray(new Object[] {});
+ return constructor.newInstance(initargs);
}
-
-
+
public static Class<?> loadClassWithTCCL(String name) throws ClassNotFoundException {
+ if ("byte[]".equals(name)) {
+ return byte[].class;
+ }
+
return Thread.currentThread().getContextClassLoader().loadClass(name);
}
}
\ No newline at end of file