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

   1 package org.opendaylight.controller.sal.binding.impl.osgi;
   2
   3
   4
   5 import java.util.concurrent.Callable;
   6 import static com.google.common.base.Preconditions.*;
   7
   8 public class ClassLoaderUtils {
   9
  10     public static <V> V withClassLoader(ClassLoader cls,Callable<V> function) throws Exception {
  11         checkNotNull(cls);
  12         checkNotNull(function);
  13         ClassLoader oldCls = Thread.currentThread().getContextClassLoader();
  14         try {
  15             Thread.currentThread().setContextClassLoader(cls);
  16             V result = function.call();
  17             Thread.currentThread().setContextClassLoader(oldCls);
  18             return result;
  19         } catch (Exception e) {
  20             Thread.currentThread().setContextClassLoader(oldCls);
  21             throw new Exception(e);
  22         }
  23     }
  24 }