X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-binding-broker%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fsal%2Fbinding%2Fimpl%2Futil%2FClassLoaderUtils.java;h=d230fd17f9475c24bd920094a233734291593901;hb=3dcdf33c8cbc2eba8b2e6cb0f110a17edfe57ec4;hp=ccf99dfe379681b85e613214bfe996d309a318ad;hpb=d542617f3486541cf9937009fb6aa1e3f2c9f0e2;p=controller.git

diff --git a/opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/sal/binding/impl/util/ClassLoaderUtils.java b/opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/sal/binding/impl/util/ClassLoaderUtils.java
index ccf99dfe37..d230fd17f9 100644
--- a/opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/sal/binding/impl/util/ClassLoaderUtils.java
+++ b/opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/sal/binding/impl/util/ClassLoaderUtils.java
@@ -1,36 +1,85 @@
 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.Arrays;
+import java.util.List;
+
+import com.google.common.base.Joiner;
+import com.google.common.base.Optional;
 
-import org.opendaylight.yangtools.yang.binding.Identifier;
+public final class ClassLoaderUtils {
 
-public class ClassLoaderUtils {
-    
-    public static <V> V withClassLoader(ClassLoader cls,Callable<V> function) throws Exception {
-        checkNotNull(cls);
-        checkNotNull(function);
+    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 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;
+        }
+        try {
+            return Thread.currentThread().getContextClassLoader().loadClass(name);
+        } catch (ClassNotFoundException e) {
+            String[] components = name.split("\\.");
+            String potentialOuter;
+            int length = components.length;
+            if (length > 2 && (potentialOuter = components[length - 2]) != null && Character.isUpperCase(potentialOuter.charAt(0))) {
+                
+                    String outerName = Joiner.on(".").join(Arrays.asList(components).subList(0, length - 1));
+                    String innerName = outerName + "$" + components[length-1];
+                    return Thread.currentThread().getContextClassLoader().loadClass(innerName);
+            } else {
+                throw e;
+            }
+        }
+    }
+
+    public static Class<?> tryToLoadClassWithTCCL(String fullyQualifiedName) {
+        try {
+            return loadClassWithTCCL(fullyQualifiedName);
+        } catch (ClassNotFoundException e) {
+
+        }
+        return null;
     }
 }
\ No newline at end of file