opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/sal/binding/impl/util/ClassLoaderUtils.java

   1 package org.opendaylight.controller.sal.binding.impl.util;
   2
   3
   4
   5 import java.util.concurrent.Callable;
   6
   7 import static com.google.common.base.Preconditions.*;
   8
   9 import java.lang.reflect.Constructor;
  10 import java.lang.reflect.InvocationTargetException;
  11 import java.util.ArrayList;
  12
  13 import org.opendaylight.yangtools.yang.binding.Identifier;
  14
  15 public class ClassLoaderUtils {
  16
  17     public static <V> V withClassLoader(ClassLoader cls,Callable<V> function) throws Exception {
  18         checkNotNull(cls);
  19         checkNotNull(function);
  20         ClassLoader oldCls = Thread.currentThread().getContextClassLoader();
  21         try {
  22             Thread.currentThread().setContextClassLoader(cls);
  23             V result = function.call();
  24             Thread.currentThread().setContextClassLoader(oldCls);
  25             return result;
  26         } catch (Exception e) {
  27             Thread.currentThread().setContextClassLoader(oldCls);
  28             throw new Exception(e);
  29         }
  30     }
  31
  32     public static Object construct(Constructor<? extends Object> constructor, ArrayList<Object> objects) throws InstantiationException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {
  33     Object[] initargs = objects.toArray(new Object[]{});
  34     return constructor.newInstance(initargs);
  35     }
  36 }